/******/ (() => { // webpackBootstrap /******/ "use strict"; /******/ var __webpack_modules__ = ({ /***/ "./node_modules/@kurkle/color/dist/color.esm.js": /*!******************************************************!*\ !*** ./node_modules/@kurkle/color/dist/color.esm.js ***! \******************************************************/ /***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => { __webpack_require__.r(__webpack_exports__); /* harmony export */ __webpack_require__.d(__webpack_exports__, { /* harmony export */ "Color": () => (/* binding */ Color), /* harmony export */ "b2n": () => (/* binding */ b2n), /* harmony export */ "b2p": () => (/* binding */ b2p), /* harmony export */ "default": () => (/* binding */ index_esm), /* harmony export */ "hexParse": () => (/* binding */ hexParse), /* harmony export */ "hexString": () => (/* binding */ hexString), /* harmony export */ "hsl2rgb": () => (/* binding */ hsl2rgb), /* harmony export */ "hslString": () => (/* binding */ hslString), /* harmony export */ "hsv2rgb": () => (/* binding */ hsv2rgb), /* harmony export */ "hueParse": () => (/* binding */ hueParse), /* harmony export */ "hwb2rgb": () => (/* binding */ hwb2rgb), /* harmony export */ "lim": () => (/* binding */ lim), /* harmony export */ "n2b": () => (/* binding */ n2b), /* harmony export */ "n2p": () => (/* binding */ n2p), /* harmony export */ "nameParse": () => (/* binding */ nameParse), /* harmony export */ "p2b": () => (/* binding */ p2b), /* harmony export */ "rgb2hsl": () => (/* binding */ rgb2hsl), /* harmony export */ "rgbParse": () => (/* binding */ rgbParse), /* harmony export */ "rgbString": () => (/* binding */ rgbString), /* harmony export */ "rotate": () => (/* binding */ rotate), /* harmony export */ "round": () => (/* binding */ round) /* harmony export */ }); /*! * @kurkle/color v0.3.2 * https://github.com/kurkle/color#readme * (c) 2023 Jukka Kurkela * Released under the MIT License */ function round(v) { return v + 0.5 | 0; } const lim = (v, l, h) => Math.max(Math.min(v, h), l); function p2b(v) { return lim(round(v * 2.55), 0, 255); } function b2p(v) { return lim(round(v / 2.55), 0, 100); } function n2b(v) { return lim(round(v * 255), 0, 255); } function b2n(v) { return lim(round(v / 2.55) / 100, 0, 1); } function n2p(v) { return lim(round(v * 100), 0, 100); } const map$1 = {0: 0, 1: 1, 2: 2, 3: 3, 4: 4, 5: 5, 6: 6, 7: 7, 8: 8, 9: 9, A: 10, B: 11, C: 12, D: 13, E: 14, F: 15, a: 10, b: 11, c: 12, d: 13, e: 14, f: 15}; const hex = [...'0123456789ABCDEF']; const h1 = b => hex[b & 0xF]; const h2 = b => hex[(b & 0xF0) >> 4] + hex[b & 0xF]; const eq = b => ((b & 0xF0) >> 4) === (b & 0xF); const isShort = v => eq(v.r) && eq(v.g) && eq(v.b) && eq(v.a); function hexParse(str) { var len = str.length; var ret; if (str[0] === '#') { if (len === 4 || len === 5) { ret = { r: 255 & map$1[str[1]] * 17, g: 255 & map$1[str[2]] * 17, b: 255 & map$1[str[3]] * 17, a: len === 5 ? map$1[str[4]] * 17 : 255 }; } else if (len === 7 || len === 9) { ret = { r: map$1[str[1]] << 4 | map$1[str[2]], g: map$1[str[3]] << 4 | map$1[str[4]], b: map$1[str[5]] << 4 | map$1[str[6]], a: len === 9 ? (map$1[str[7]] << 4 | map$1[str[8]]) : 255 }; } } return ret; } const alpha = (a, f) => a < 255 ? f(a) : ''; function hexString(v) { var f = isShort(v) ? h1 : h2; return v ? '#' + f(v.r) + f(v.g) + f(v.b) + alpha(v.a, f) : undefined; } const HUE_RE = /^(hsla?|hwb|hsv)\(\s*([-+.e\d]+)(?:deg)?[\s,]+([-+.e\d]+)%[\s,]+([-+.e\d]+)%(?:[\s,]+([-+.e\d]+)(%)?)?\s*\)$/; function hsl2rgbn(h, s, l) { const a = s * Math.min(l, 1 - l); const f = (n, k = (n + h / 30) % 12) => l - a * Math.max(Math.min(k - 3, 9 - k, 1), -1); return [f(0), f(8), f(4)]; } function hsv2rgbn(h, s, v) { const f = (n, k = (n + h / 60) % 6) => v - v * s * Math.max(Math.min(k, 4 - k, 1), 0); return [f(5), f(3), f(1)]; } function hwb2rgbn(h, w, b) { const rgb = hsl2rgbn(h, 1, 0.5); let i; if (w + b > 1) { i = 1 / (w + b); w *= i; b *= i; } for (i = 0; i < 3; i++) { rgb[i] *= 1 - w - b; rgb[i] += w; } return rgb; } function hueValue(r, g, b, d, max) { if (r === max) { return ((g - b) / d) + (g < b ? 6 : 0); } if (g === max) { return (b - r) / d + 2; } return (r - g) / d + 4; } function rgb2hsl(v) { const range = 255; const r = v.r / range; const g = v.g / range; const b = v.b / range; const max = Math.max(r, g, b); const min = Math.min(r, g, b); const l = (max + min) / 2; let h, s, d; if (max !== min) { d = max - min; s = l > 0.5 ? d / (2 - max - min) : d / (max + min); h = hueValue(r, g, b, d, max); h = h * 60 + 0.5; } return [h | 0, s || 0, l]; } function calln(f, a, b, c) { return ( Array.isArray(a) ? f(a[0], a[1], a[2]) : f(a, b, c) ).map(n2b); } function hsl2rgb(h, s, l) { return calln(hsl2rgbn, h, s, l); } function hwb2rgb(h, w, b) { return calln(hwb2rgbn, h, w, b); } function hsv2rgb(h, s, v) { return calln(hsv2rgbn, h, s, v); } function hue(h) { return (h % 360 + 360) % 360; } function hueParse(str) { const m = HUE_RE.exec(str); let a = 255; let v; if (!m) { return; } if (m[5] !== v) { a = m[6] ? p2b(+m[5]) : n2b(+m[5]); } const h = hue(+m[2]); const p1 = +m[3] / 100; const p2 = +m[4] / 100; if (m[1] === 'hwb') { v = hwb2rgb(h, p1, p2); } else if (m[1] === 'hsv') { v = hsv2rgb(h, p1, p2); } else { v = hsl2rgb(h, p1, p2); } return { r: v[0], g: v[1], b: v[2], a: a }; } function rotate(v, deg) { var h = rgb2hsl(v); h[0] = hue(h[0] + deg); h = hsl2rgb(h); v.r = h[0]; v.g = h[1]; v.b = h[2]; } function hslString(v) { if (!v) { return; } const a = rgb2hsl(v); const h = a[0]; const s = n2p(a[1]); const l = n2p(a[2]); return v.a < 255 ? `hsla(${h}, ${s}%, ${l}%, ${b2n(v.a)})` : `hsl(${h}, ${s}%, ${l}%)`; } const map = { x: 'dark', Z: 'light', Y: 're', X: 'blu', W: 'gr', V: 'medium', U: 'slate', A: 'ee', T: 'ol', S: 'or', B: 'ra', C: 'lateg', D: 'ights', R: 'in', Q: 'turquois', E: 'hi', P: 'ro', O: 'al', N: 'le', M: 'de', L: 'yello', F: 'en', K: 'ch', G: 'arks', H: 'ea', I: 'ightg', J: 'wh' }; const names$1 = { OiceXe: 'f0f8ff', antiquewEte: 'faebd7', aqua: 'ffff', aquamarRe: '7fffd4', azuY: 'f0ffff', beige: 'f5f5dc', bisque: 'ffe4c4', black: '0', blanKedOmond: 'ffebcd', Xe: 'ff', XeviTet: '8a2be2', bPwn: 'a52a2a', burlywood: 'deb887', caMtXe: '5f9ea0', KartYuse: '7fff00', KocTate: 'd2691e', cSO: 'ff7f50', cSnflowerXe: '6495ed', cSnsilk: 'fff8dc', crimson: 'dc143c', cyan: 'ffff', xXe: '8b', xcyan: '8b8b', xgTMnPd: 'b8860b', xWay: 'a9a9a9', xgYF: '6400', xgYy: 'a9a9a9', xkhaki: 'bdb76b', xmagFta: '8b008b', xTivegYF: '556b2f', xSange: 'ff8c00', xScEd: '9932cc', xYd: '8b0000', xsOmon: 'e9967a', xsHgYF: '8fbc8f', xUXe: '483d8b', xUWay: '2f4f4f', xUgYy: '2f4f4f', xQe: 'ced1', xviTet: '9400d3', dAppRk: 'ff1493', dApskyXe: 'bfff', dimWay: '696969', dimgYy: '696969', dodgerXe: '1e90ff', fiYbrick: 'b22222', flSOwEte: 'fffaf0', foYstWAn: '228b22', fuKsia: 'ff00ff', gaRsbSo: 'dcdcdc', ghostwEte: 'f8f8ff', gTd: 'ffd700', gTMnPd: 'daa520', Way: '808080', gYF: '8000', gYFLw: 'adff2f', gYy: '808080', honeyMw: 'f0fff0', hotpRk: 'ff69b4', RdianYd: 'cd5c5c', Rdigo: '4b0082', ivSy: 'fffff0', khaki: 'f0e68c', lavFMr: 'e6e6fa', lavFMrXsh: 'fff0f5', lawngYF: '7cfc00', NmoncEffon: 'fffacd', ZXe: 'add8e6', ZcSO: 'f08080', Zcyan: 'e0ffff', ZgTMnPdLw: 'fafad2', ZWay: 'd3d3d3', ZgYF: '90ee90', ZgYy: 'd3d3d3', ZpRk: 'ffb6c1', ZsOmon: 'ffa07a', ZsHgYF: '20b2aa', ZskyXe: '87cefa', ZUWay: '778899', ZUgYy: '778899', ZstAlXe: 'b0c4de', ZLw: 'ffffe0', lime: 'ff00', limegYF: '32cd32', lRF: 'faf0e6', magFta: 'ff00ff', maPon: '800000', VaquamarRe: '66cdaa', VXe: 'cd', VScEd: 'ba55d3', VpurpN: '9370db', VsHgYF: '3cb371', VUXe: '7b68ee', VsprRggYF: 'fa9a', VQe: '48d1cc', VviTetYd: 'c71585', midnightXe: '191970', mRtcYam: 'f5fffa', mistyPse: 'ffe4e1', moccasR: 'ffe4b5', navajowEte: 'ffdead', navy: '80', Tdlace: 'fdf5e6', Tive: '808000', TivedBb: '6b8e23', Sange: 'ffa500', SangeYd: 'ff4500', ScEd: 'da70d6', pOegTMnPd: 'eee8aa', pOegYF: '98fb98', pOeQe: 'afeeee', pOeviTetYd: 'db7093', papayawEp: 'ffefd5', pHKpuff: 'ffdab9', peru: 'cd853f', pRk: 'ffc0cb', plum: 'dda0dd', powMrXe: 'b0e0e6', purpN: '800080', YbeccapurpN: '663399', Yd: 'ff0000', Psybrown: 'bc8f8f', PyOXe: '4169e1', saddNbPwn: '8b4513', sOmon: 'fa8072', sandybPwn: 'f4a460', sHgYF: '2e8b57', sHshell: 'fff5ee', siFna: 'a0522d', silver: 'c0c0c0', skyXe: '87ceeb', UXe: '6a5acd', UWay: '708090', UgYy: '708090', snow: 'fffafa', sprRggYF: 'ff7f', stAlXe: '4682b4', tan: 'd2b48c', teO: '8080', tEstN: 'd8bfd8', tomato: 'ff6347', Qe: '40e0d0', viTet: 'ee82ee', JHt: 'f5deb3', wEte: 'ffffff', wEtesmoke: 'f5f5f5', Lw: 'ffff00', LwgYF: '9acd32' }; function unpack() { const unpacked = {}; const keys = Object.keys(names$1); const tkeys = Object.keys(map); let i, j, k, ok, nk; for (i = 0; i < keys.length; i++) { ok = nk = keys[i]; for (j = 0; j < tkeys.length; j++) { k = tkeys[j]; nk = nk.replace(k, map[k]); } k = parseInt(names$1[ok], 16); unpacked[nk] = [k >> 16 & 0xFF, k >> 8 & 0xFF, k & 0xFF]; } return unpacked; } let names; function nameParse(str) { if (!names) { names = unpack(); names.transparent = [0, 0, 0, 0]; } const a = names[str.toLowerCase()]; return a && { r: a[0], g: a[1], b: a[2], a: a.length === 4 ? a[3] : 255 }; } const RGB_RE = /^rgba?\(\s*([-+.\d]+)(%)?[\s,]+([-+.e\d]+)(%)?[\s,]+([-+.e\d]+)(%)?(?:[\s,/]+([-+.e\d]+)(%)?)?\s*\)$/; function rgbParse(str) { const m = RGB_RE.exec(str); let a = 255; let r, g, b; if (!m) { return; } if (m[7] !== r) { const v = +m[7]; a = m[8] ? p2b(v) : lim(v * 255, 0, 255); } r = +m[1]; g = +m[3]; b = +m[5]; r = 255 & (m[2] ? p2b(r) : lim(r, 0, 255)); g = 255 & (m[4] ? p2b(g) : lim(g, 0, 255)); b = 255 & (m[6] ? p2b(b) : lim(b, 0, 255)); return { r: r, g: g, b: b, a: a }; } function rgbString(v) { return v && ( v.a < 255 ? `rgba(${v.r}, ${v.g}, ${v.b}, ${b2n(v.a)})` : `rgb(${v.r}, ${v.g}, ${v.b})` ); } const to = v => v <= 0.0031308 ? v * 12.92 : Math.pow(v, 1.0 / 2.4) * 1.055 - 0.055; const from = v => v <= 0.04045 ? v / 12.92 : Math.pow((v + 0.055) / 1.055, 2.4); function interpolate(rgb1, rgb2, t) { const r = from(b2n(rgb1.r)); const g = from(b2n(rgb1.g)); const b = from(b2n(rgb1.b)); return { r: n2b(to(r + t * (from(b2n(rgb2.r)) - r))), g: n2b(to(g + t * (from(b2n(rgb2.g)) - g))), b: n2b(to(b + t * (from(b2n(rgb2.b)) - b))), a: rgb1.a + t * (rgb2.a - rgb1.a) }; } function modHSL(v, i, ratio) { if (v) { let tmp = rgb2hsl(v); tmp[i] = Math.max(0, Math.min(tmp[i] + tmp[i] * ratio, i === 0 ? 360 : 1)); tmp = hsl2rgb(tmp); v.r = tmp[0]; v.g = tmp[1]; v.b = tmp[2]; } } function clone(v, proto) { return v ? Object.assign(proto || {}, v) : v; } function fromObject(input) { var v = {r: 0, g: 0, b: 0, a: 255}; if (Array.isArray(input)) { if (input.length >= 3) { v = {r: input[0], g: input[1], b: input[2], a: 255}; if (input.length > 3) { v.a = n2b(input[3]); } } } else { v = clone(input, {r: 0, g: 0, b: 0, a: 1}); v.a = n2b(v.a); } return v; } function functionParse(str) { if (str.charAt(0) === 'r') { return rgbParse(str); } return hueParse(str); } class Color { constructor(input) { if (input instanceof Color) { return input; } const type = typeof input; let v; if (type === 'object') { v = fromObject(input); } else if (type === 'string') { v = hexParse(input) || nameParse(input) || functionParse(input); } this._rgb = v; this._valid = !!v; } get valid() { return this._valid; } get rgb() { var v = clone(this._rgb); if (v) { v.a = b2n(v.a); } return v; } set rgb(obj) { this._rgb = fromObject(obj); } rgbString() { return this._valid ? rgbString(this._rgb) : undefined; } hexString() { return this._valid ? hexString(this._rgb) : undefined; } hslString() { return this._valid ? hslString(this._rgb) : undefined; } mix(color, weight) { if (color) { const c1 = this.rgb; const c2 = color.rgb; let w2; const p = weight === w2 ? 0.5 : weight; const w = 2 * p - 1; const a = c1.a - c2.a; const w1 = ((w * a === -1 ? w : (w + a) / (1 + w * a)) + 1) / 2.0; w2 = 1 - w1; c1.r = 0xFF & w1 * c1.r + w2 * c2.r + 0.5; c1.g = 0xFF & w1 * c1.g + w2 * c2.g + 0.5; c1.b = 0xFF & w1 * c1.b + w2 * c2.b + 0.5; c1.a = p * c1.a + (1 - p) * c2.a; this.rgb = c1; } return this; } interpolate(color, t) { if (color) { this._rgb = interpolate(this._rgb, color._rgb, t); } return this; } clone() { return new Color(this.rgb); } alpha(a) { this._rgb.a = n2b(a); return this; } clearer(ratio) { const rgb = this._rgb; rgb.a *= 1 - ratio; return this; } greyscale() { const rgb = this._rgb; const val = round(rgb.r * 0.3 + rgb.g * 0.59 + rgb.b * 0.11); rgb.r = rgb.g = rgb.b = val; return this; } opaquer(ratio) { const rgb = this._rgb; rgb.a *= 1 + ratio; return this; } negate() { const v = this._rgb; v.r = 255 - v.r; v.g = 255 - v.g; v.b = 255 - v.b; return this; } lighten(ratio) { modHSL(this._rgb, 2, ratio); return this; } darken(ratio) { modHSL(this._rgb, 2, -ratio); return this; } saturate(ratio) { modHSL(this._rgb, 1, ratio); return this; } desaturate(ratio) { modHSL(this._rgb, 1, -ratio); return this; } rotate(deg) { rotate(this._rgb, deg); return this; } } function index_esm(input) { return new Color(input); } /***/ }), /***/ "./node_modules/chart.js/dist/chart.js": /*!*********************************************!*\ !*** ./node_modules/chart.js/dist/chart.js ***! \*********************************************/ /***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => { __webpack_require__.r(__webpack_exports__); /* harmony export */ __webpack_require__.d(__webpack_exports__, { /* harmony export */ "Animation": () => (/* binding */ Animation), /* harmony export */ "Animations": () => (/* binding */ Animations), /* harmony export */ "ArcElement": () => (/* binding */ ArcElement), /* harmony export */ "BarController": () => (/* binding */ BarController), /* harmony export */ "BarElement": () => (/* binding */ BarElement), /* harmony export */ "BasePlatform": () => (/* binding */ BasePlatform), /* harmony export */ "BasicPlatform": () => (/* binding */ BasicPlatform), /* harmony export */ "BubbleController": () => (/* binding */ BubbleController), /* harmony export */ "CategoryScale": () => (/* binding */ CategoryScale), /* harmony export */ "Chart": () => (/* binding */ Chart), /* harmony export */ "Colors": () => (/* binding */ plugin_colors), /* harmony export */ "DatasetController": () => (/* binding */ DatasetController), /* harmony export */ "Decimation": () => (/* binding */ plugin_decimation), /* harmony export */ "DomPlatform": () => (/* binding */ DomPlatform), /* harmony export */ "DoughnutController": () => (/* binding */ DoughnutController), /* harmony export */ "Element": () => (/* binding */ Element), /* harmony export */ "Filler": () => (/* binding */ index), /* harmony export */ "Interaction": () => (/* binding */ Interaction), /* harmony export */ "Legend": () => (/* binding */ plugin_legend), /* harmony export */ "LineController": () => (/* binding */ LineController), /* harmony export */ "LineElement": () => (/* binding */ LineElement), /* harmony export */ "LinearScale": () => (/* binding */ LinearScale), /* harmony export */ "LogarithmicScale": () => (/* binding */ LogarithmicScale), /* harmony export */ "PieController": () => (/* binding */ PieController), /* harmony export */ "PointElement": () => (/* binding */ PointElement), /* harmony export */ "PolarAreaController": () => (/* binding */ PolarAreaController), /* harmony export */ "RadarController": () => (/* binding */ RadarController), /* harmony export */ "RadialLinearScale": () => (/* binding */ RadialLinearScale), /* harmony export */ "Scale": () => (/* binding */ Scale), /* harmony export */ "ScatterController": () => (/* binding */ ScatterController), /* harmony export */ "SubTitle": () => (/* binding */ plugin_subtitle), /* harmony export */ "Ticks": () => (/* reexport safe */ _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aL), /* harmony export */ "TimeScale": () => (/* binding */ TimeScale), /* harmony export */ "TimeSeriesScale": () => (/* binding */ TimeSeriesScale), /* harmony export */ "Title": () => (/* binding */ plugin_title), /* harmony export */ "Tooltip": () => (/* binding */ plugin_tooltip), /* harmony export */ "_adapters": () => (/* binding */ adapters), /* harmony export */ "_detectPlatform": () => (/* binding */ _detectPlatform), /* harmony export */ "animator": () => (/* binding */ animator), /* harmony export */ "controllers": () => (/* binding */ controllers), /* harmony export */ "defaults": () => (/* reexport safe */ _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d), /* harmony export */ "elements": () => (/* binding */ elements), /* harmony export */ "layouts": () => (/* binding */ layouts), /* harmony export */ "plugins": () => (/* binding */ plugins), /* harmony export */ "registerables": () => (/* binding */ registerables), /* harmony export */ "registry": () => (/* binding */ registry), /* harmony export */ "scales": () => (/* binding */ scales) /* harmony export */ }); /* harmony import */ var _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./chunks/helpers.segment.js */ "./node_modules/chart.js/dist/chunks/helpers.segment.js"); /*! * Chart.js v4.3.0 * https://www.chartjs.org * (c) 2023 Chart.js Contributors * Released under the MIT License */ class Animator { constructor(){ this._request = null; this._charts = new Map(); this._running = false; this._lastDate = undefined; } _notify(chart, anims, date, type) { const callbacks = anims.listeners[type]; const numSteps = anims.duration; callbacks.forEach((fn)=>fn({ chart, initial: anims.initial, numSteps, currentStep: Math.min(date - anims.start, numSteps) })); } _refresh() { if (this._request) { return; } this._running = true; this._request = _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.r.call(window, ()=>{ this._update(); this._request = null; if (this._running) { this._refresh(); } }); } _update(date = Date.now()) { let remaining = 0; this._charts.forEach((anims, chart)=>{ if (!anims.running || !anims.items.length) { return; } const items = anims.items; let i = items.length - 1; let draw = false; let item; for(; i >= 0; --i){ item = items[i]; if (item._active) { if (item._total > anims.duration) { anims.duration = item._total; } item.tick(date); draw = true; } else { items[i] = items[items.length - 1]; items.pop(); } } if (draw) { chart.draw(); this._notify(chart, anims, date, 'progress'); } if (!items.length) { anims.running = false; this._notify(chart, anims, date, 'complete'); anims.initial = false; } remaining += items.length; }); this._lastDate = date; if (remaining === 0) { this._running = false; } } _getAnims(chart) { const charts = this._charts; let anims = charts.get(chart); if (!anims) { anims = { running: false, initial: true, items: [], listeners: { complete: [], progress: [] } }; charts.set(chart, anims); } return anims; } listen(chart, event, cb) { this._getAnims(chart).listeners[event].push(cb); } add(chart, items) { if (!items || !items.length) { return; } this._getAnims(chart).items.push(...items); } has(chart) { return this._getAnims(chart).items.length > 0; } start(chart) { const anims = this._charts.get(chart); if (!anims) { return; } anims.running = true; anims.start = Date.now(); anims.duration = anims.items.reduce((acc, cur)=>Math.max(acc, cur._duration), 0); this._refresh(); } running(chart) { if (!this._running) { return false; } const anims = this._charts.get(chart); if (!anims || !anims.running || !anims.items.length) { return false; } return true; } stop(chart) { const anims = this._charts.get(chart); if (!anims || !anims.items.length) { return; } const items = anims.items; let i = items.length - 1; for(; i >= 0; --i){ items[i].cancel(); } anims.items = []; this._notify(chart, anims, Date.now(), 'complete'); } remove(chart) { return this._charts.delete(chart); } } var animator = /* #__PURE__ */ new Animator(); const transparent = 'transparent'; const interpolators = { boolean (from, to, factor) { return factor > 0.5 ? to : from; }, color (from, to, factor) { const c0 = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.c)(from || transparent); const c1 = c0.valid && (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.c)(to || transparent); return c1 && c1.valid ? c1.mix(c0, factor).hexString() : to; }, number (from, to, factor) { return from + (to - from) * factor; } }; class Animation { constructor(cfg, target, prop, to){ const currentValue = target[prop]; to = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a)([ cfg.to, to, currentValue, cfg.from ]); const from = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a)([ cfg.from, currentValue, to ]); this._active = true; this._fn = cfg.fn || interpolators[cfg.type || typeof from]; this._easing = _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.e[cfg.easing] || _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.e.linear; this._start = Math.floor(Date.now() + (cfg.delay || 0)); this._duration = this._total = Math.floor(cfg.duration); this._loop = !!cfg.loop; this._target = target; this._prop = prop; this._from = from; this._to = to; this._promises = undefined; } active() { return this._active; } update(cfg, to, date) { if (this._active) { this._notify(false); const currentValue = this._target[this._prop]; const elapsed = date - this._start; const remain = this._duration - elapsed; this._start = date; this._duration = Math.floor(Math.max(remain, cfg.duration)); this._total += elapsed; this._loop = !!cfg.loop; this._to = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a)([ cfg.to, to, currentValue, cfg.from ]); this._from = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a)([ cfg.from, currentValue, to ]); } } cancel() { if (this._active) { this.tick(Date.now()); this._active = false; this._notify(false); } } tick(date) { const elapsed = date - this._start; const duration = this._duration; const prop = this._prop; const from = this._from; const loop = this._loop; const to = this._to; let factor; this._active = from !== to && (loop || elapsed < duration); if (!this._active) { this._target[prop] = to; this._notify(true); return; } if (elapsed < 0) { this._target[prop] = from; return; } factor = elapsed / duration % 2; factor = loop && factor > 1 ? 2 - factor : factor; factor = this._easing(Math.min(1, Math.max(0, factor))); this._target[prop] = this._fn(from, to, factor); } wait() { const promises = this._promises || (this._promises = []); return new Promise((res, rej)=>{ promises.push({ res, rej }); }); } _notify(resolved) { const method = resolved ? 'res' : 'rej'; const promises = this._promises || []; for(let i = 0; i < promises.length; i++){ promises[i][method](); } } } class Animations { constructor(chart, config){ this._chart = chart; this._properties = new Map(); this.configure(config); } configure(config) { if (!(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(config)) { return; } const animationOptions = Object.keys(_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d.animation); const animatedProps = this._properties; Object.getOwnPropertyNames(config).forEach((key)=>{ const cfg = config[key]; if (!(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(cfg)) { return; } const resolved = {}; for (const option of animationOptions){ resolved[option] = cfg[option]; } ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.b)(cfg.properties) && cfg.properties || [ key ]).forEach((prop)=>{ if (prop === key || !animatedProps.has(prop)) { animatedProps.set(prop, resolved); } }); }); } _animateOptions(target, values) { const newOptions = values.options; const options = resolveTargetOptions(target, newOptions); if (!options) { return []; } const animations = this._createAnimations(options, newOptions); if (newOptions.$shared) { awaitAll(target.options.$animations, newOptions).then(()=>{ target.options = newOptions; }, ()=>{ }); } return animations; } _createAnimations(target, values) { const animatedProps = this._properties; const animations = []; const running = target.$animations || (target.$animations = {}); const props = Object.keys(values); const date = Date.now(); let i; for(i = props.length - 1; i >= 0; --i){ const prop = props[i]; if (prop.charAt(0) === '$') { continue; } if (prop === 'options') { animations.push(...this._animateOptions(target, values)); continue; } const value = values[prop]; let animation = running[prop]; const cfg = animatedProps.get(prop); if (animation) { if (cfg && animation.active()) { animation.update(cfg, value, date); continue; } else { animation.cancel(); } } if (!cfg || !cfg.duration) { target[prop] = value; continue; } running[prop] = animation = new Animation(cfg, target, prop, value); animations.push(animation); } return animations; } update(target, values) { if (this._properties.size === 0) { Object.assign(target, values); return; } const animations = this._createAnimations(target, values); if (animations.length) { animator.add(this._chart, animations); return true; } } } function awaitAll(animations, properties) { const running = []; const keys = Object.keys(properties); for(let i = 0; i < keys.length; i++){ const anim = animations[keys[i]]; if (anim && anim.active()) { running.push(anim.wait()); } } return Promise.all(running); } function resolveTargetOptions(target, newOptions) { if (!newOptions) { return; } let options = target.options; if (!options) { target.options = newOptions; return; } if (options.$shared) { target.options = options = Object.assign({}, options, { $shared: false, $animations: {} }); } return options; } function scaleClip(scale, allowedOverflow) { const opts = scale && scale.options || {}; const reverse = opts.reverse; const min = opts.min === undefined ? allowedOverflow : 0; const max = opts.max === undefined ? allowedOverflow : 0; return { start: reverse ? max : min, end: reverse ? min : max }; } function defaultClip(xScale, yScale, allowedOverflow) { if (allowedOverflow === false) { return false; } const x = scaleClip(xScale, allowedOverflow); const y = scaleClip(yScale, allowedOverflow); return { top: y.end, right: x.end, bottom: y.start, left: x.start }; } function toClip(value) { let t, r, b, l; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(value)) { t = value.top; r = value.right; b = value.bottom; l = value.left; } else { t = r = b = l = value; } return { top: t, right: r, bottom: b, left: l, disabled: value === false }; } function getSortedDatasetIndices(chart, filterVisible) { const keys = []; const metasets = chart._getSortedDatasetMetas(filterVisible); let i, ilen; for(i = 0, ilen = metasets.length; i < ilen; ++i){ keys.push(metasets[i].index); } return keys; } function applyStack(stack, value, dsIndex, options = {}) { const keys = stack.keys; const singleMode = options.mode === 'single'; let i, ilen, datasetIndex, otherValue; if (value === null) { return; } for(i = 0, ilen = keys.length; i < ilen; ++i){ datasetIndex = +keys[i]; if (datasetIndex === dsIndex) { if (options.all) { continue; } break; } otherValue = stack.values[datasetIndex]; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(otherValue) && (singleMode || value === 0 || (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.s)(value) === (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.s)(otherValue))) { value += otherValue; } } return value; } function convertObjectDataToArray(data) { const keys = Object.keys(data); const adata = new Array(keys.length); let i, ilen, key; for(i = 0, ilen = keys.length; i < ilen; ++i){ key = keys[i]; adata[i] = { x: key, y: data[key] }; } return adata; } function isStacked(scale, meta) { const stacked = scale && scale.options.stacked; return stacked || stacked === undefined && meta.stack !== undefined; } function getStackKey(indexScale, valueScale, meta) { return `${indexScale.id}.${valueScale.id}.${meta.stack || meta.type}`; } function getUserBounds(scale) { const { min , max , minDefined , maxDefined } = scale.getUserBounds(); return { min: minDefined ? min : Number.NEGATIVE_INFINITY, max: maxDefined ? max : Number.POSITIVE_INFINITY }; } function getOrCreateStack(stacks, stackKey, indexValue) { const subStack = stacks[stackKey] || (stacks[stackKey] = {}); return subStack[indexValue] || (subStack[indexValue] = {}); } function getLastIndexInStack(stack, vScale, positive, type) { for (const meta of vScale.getMatchingVisibleMetas(type).reverse()){ const value = stack[meta.index]; if (positive && value > 0 || !positive && value < 0) { return meta.index; } } return null; } function updateStacks(controller, parsed) { const { chart , _cachedMeta: meta } = controller; const stacks = chart._stacks || (chart._stacks = {}); const { iScale , vScale , index: datasetIndex } = meta; const iAxis = iScale.axis; const vAxis = vScale.axis; const key = getStackKey(iScale, vScale, meta); const ilen = parsed.length; let stack; for(let i = 0; i < ilen; ++i){ const item = parsed[i]; const { [iAxis]: index , [vAxis]: value } = item; const itemStacks = item._stacks || (item._stacks = {}); stack = itemStacks[vAxis] = getOrCreateStack(stacks, key, index); stack[datasetIndex] = value; stack._top = getLastIndexInStack(stack, vScale, true, meta.type); stack._bottom = getLastIndexInStack(stack, vScale, false, meta.type); const visualValues = stack._visualValues || (stack._visualValues = {}); visualValues[datasetIndex] = value; } } function getFirstScaleId(chart, axis) { const scales = chart.scales; return Object.keys(scales).filter((key)=>scales[key].axis === axis).shift(); } function createDatasetContext(parent, index) { return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.j)(parent, { active: false, dataset: undefined, datasetIndex: index, index, mode: 'default', type: 'dataset' }); } function createDataContext(parent, index, element) { return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.j)(parent, { active: false, dataIndex: index, parsed: undefined, raw: undefined, element, index, mode: 'default', type: 'data' }); } function clearStacks(meta, items) { const datasetIndex = meta.controller.index; const axis = meta.vScale && meta.vScale.axis; if (!axis) { return; } items = items || meta._parsed; for (const parsed of items){ const stacks = parsed._stacks; if (!stacks || stacks[axis] === undefined || stacks[axis][datasetIndex] === undefined) { return; } delete stacks[axis][datasetIndex]; if (stacks[axis]._visualValues !== undefined && stacks[axis]._visualValues[datasetIndex] !== undefined) { delete stacks[axis]._visualValues[datasetIndex]; } } } const isDirectUpdateMode = (mode)=>mode === 'reset' || mode === 'none'; const cloneIfNotShared = (cached, shared)=>shared ? cached : Object.assign({}, cached); const createStack = (canStack, meta, chart)=>canStack && !meta.hidden && meta._stacked && { keys: getSortedDatasetIndices(chart, true), values: null }; class DatasetController { static defaults = {}; static datasetElementType = null; static dataElementType = null; constructor(chart, datasetIndex){ this.chart = chart; this._ctx = chart.ctx; this.index = datasetIndex; this._cachedDataOpts = {}; this._cachedMeta = this.getMeta(); this._type = this._cachedMeta.type; this.options = undefined; this._parsing = false; this._data = undefined; this._objectData = undefined; this._sharedOptions = undefined; this._drawStart = undefined; this._drawCount = undefined; this.enableOptionSharing = false; this.supportsDecimation = false; this.$context = undefined; this._syncList = []; this.datasetElementType = new.target.datasetElementType; this.dataElementType = new.target.dataElementType; this.initialize(); } initialize() { const meta = this._cachedMeta; this.configure(); this.linkScales(); meta._stacked = isStacked(meta.vScale, meta); this.addElements(); if (this.options.fill && !this.chart.isPluginEnabled('filler')) { console.warn("Tried to use the 'fill' option without the 'Filler' plugin enabled. Please import and register the 'Filler' plugin and make sure it is not disabled in the options"); } } updateIndex(datasetIndex) { if (this.index !== datasetIndex) { clearStacks(this._cachedMeta); } this.index = datasetIndex; } linkScales() { const chart = this.chart; const meta = this._cachedMeta; const dataset = this.getDataset(); const chooseId = (axis, x, y, r)=>axis === 'x' ? x : axis === 'r' ? r : y; const xid = meta.xAxisID = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(dataset.xAxisID, getFirstScaleId(chart, 'x')); const yid = meta.yAxisID = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(dataset.yAxisID, getFirstScaleId(chart, 'y')); const rid = meta.rAxisID = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(dataset.rAxisID, getFirstScaleId(chart, 'r')); const indexAxis = meta.indexAxis; const iid = meta.iAxisID = chooseId(indexAxis, xid, yid, rid); const vid = meta.vAxisID = chooseId(indexAxis, yid, xid, rid); meta.xScale = this.getScaleForId(xid); meta.yScale = this.getScaleForId(yid); meta.rScale = this.getScaleForId(rid); meta.iScale = this.getScaleForId(iid); meta.vScale = this.getScaleForId(vid); } getDataset() { return this.chart.data.datasets[this.index]; } getMeta() { return this.chart.getDatasetMeta(this.index); } getScaleForId(scaleID) { return this.chart.scales[scaleID]; } _getOtherScale(scale) { const meta = this._cachedMeta; return scale === meta.iScale ? meta.vScale : meta.iScale; } reset() { this._update('reset'); } _destroy() { const meta = this._cachedMeta; if (this._data) { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.u)(this._data, this); } if (meta._stacked) { clearStacks(meta); } } _dataCheck() { const dataset = this.getDataset(); const data = dataset.data || (dataset.data = []); const _data = this._data; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(data)) { this._data = convertObjectDataToArray(data); } else if (_data !== data) { if (_data) { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.u)(_data, this); const meta = this._cachedMeta; clearStacks(meta); meta._parsed = []; } if (data && Object.isExtensible(data)) { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.l)(data, this); } this._syncList = []; this._data = data; } } addElements() { const meta = this._cachedMeta; this._dataCheck(); if (this.datasetElementType) { meta.dataset = new this.datasetElementType(); } } buildOrUpdateElements(resetNewElements) { const meta = this._cachedMeta; const dataset = this.getDataset(); let stackChanged = false; this._dataCheck(); const oldStacked = meta._stacked; meta._stacked = isStacked(meta.vScale, meta); if (meta.stack !== dataset.stack) { stackChanged = true; clearStacks(meta); meta.stack = dataset.stack; } this._resyncElements(resetNewElements); if (stackChanged || oldStacked !== meta._stacked) { updateStacks(this, meta._parsed); } } configure() { const config = this.chart.config; const scopeKeys = config.datasetScopeKeys(this._type); const scopes = config.getOptionScopes(this.getDataset(), scopeKeys, true); this.options = config.createResolver(scopes, this.getContext()); this._parsing = this.options.parsing; this._cachedDataOpts = {}; } parse(start, count) { const { _cachedMeta: meta , _data: data } = this; const { iScale , _stacked } = meta; const iAxis = iScale.axis; let sorted = start === 0 && count === data.length ? true : meta._sorted; let prev = start > 0 && meta._parsed[start - 1]; let i, cur, parsed; if (this._parsing === false) { meta._parsed = data; meta._sorted = true; parsed = data; } else { if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.b)(data[start])) { parsed = this.parseArrayData(meta, data, start, count); } else if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(data[start])) { parsed = this.parseObjectData(meta, data, start, count); } else { parsed = this.parsePrimitiveData(meta, data, start, count); } const isNotInOrderComparedToPrev = ()=>cur[iAxis] === null || prev && cur[iAxis] < prev[iAxis]; for(i = 0; i < count; ++i){ meta._parsed[i + start] = cur = parsed[i]; if (sorted) { if (isNotInOrderComparedToPrev()) { sorted = false; } prev = cur; } } meta._sorted = sorted; } if (_stacked) { updateStacks(this, parsed); } } parsePrimitiveData(meta, data, start, count) { const { iScale , vScale } = meta; const iAxis = iScale.axis; const vAxis = vScale.axis; const labels = iScale.getLabels(); const singleScale = iScale === vScale; const parsed = new Array(count); let i, ilen, index; for(i = 0, ilen = count; i < ilen; ++i){ index = i + start; parsed[i] = { [iAxis]: singleScale || iScale.parse(labels[index], index), [vAxis]: vScale.parse(data[index], index) }; } return parsed; } parseArrayData(meta, data, start, count) { const { xScale , yScale } = meta; const parsed = new Array(count); let i, ilen, index, item; for(i = 0, ilen = count; i < ilen; ++i){ index = i + start; item = data[index]; parsed[i] = { x: xScale.parse(item[0], index), y: yScale.parse(item[1], index) }; } return parsed; } parseObjectData(meta, data, start, count) { const { xScale , yScale } = meta; const { xAxisKey ='x' , yAxisKey ='y' } = this._parsing; const parsed = new Array(count); let i, ilen, index, item; for(i = 0, ilen = count; i < ilen; ++i){ index = i + start; item = data[index]; parsed[i] = { x: xScale.parse((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.f)(item, xAxisKey), index), y: yScale.parse((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.f)(item, yAxisKey), index) }; } return parsed; } getParsed(index) { return this._cachedMeta._parsed[index]; } getDataElement(index) { return this._cachedMeta.data[index]; } applyStack(scale, parsed, mode) { const chart = this.chart; const meta = this._cachedMeta; const value = parsed[scale.axis]; const stack = { keys: getSortedDatasetIndices(chart, true), values: parsed._stacks[scale.axis]._visualValues }; return applyStack(stack, value, meta.index, { mode }); } updateRangeFromParsed(range, scale, parsed, stack) { const parsedValue = parsed[scale.axis]; let value = parsedValue === null ? NaN : parsedValue; const values = stack && parsed._stacks[scale.axis]; if (stack && values) { stack.values = values; value = applyStack(stack, parsedValue, this._cachedMeta.index); } range.min = Math.min(range.min, value); range.max = Math.max(range.max, value); } getMinMax(scale, canStack) { const meta = this._cachedMeta; const _parsed = meta._parsed; const sorted = meta._sorted && scale === meta.iScale; const ilen = _parsed.length; const otherScale = this._getOtherScale(scale); const stack = createStack(canStack, meta, this.chart); const range = { min: Number.POSITIVE_INFINITY, max: Number.NEGATIVE_INFINITY }; const { min: otherMin , max: otherMax } = getUserBounds(otherScale); let i, parsed; function _skip() { parsed = _parsed[i]; const otherValue = parsed[otherScale.axis]; return !(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(parsed[scale.axis]) || otherMin > otherValue || otherMax < otherValue; } for(i = 0; i < ilen; ++i){ if (_skip()) { continue; } this.updateRangeFromParsed(range, scale, parsed, stack); if (sorted) { break; } } if (sorted) { for(i = ilen - 1; i >= 0; --i){ if (_skip()) { continue; } this.updateRangeFromParsed(range, scale, parsed, stack); break; } } return range; } getAllParsedValues(scale) { const parsed = this._cachedMeta._parsed; const values = []; let i, ilen, value; for(i = 0, ilen = parsed.length; i < ilen; ++i){ value = parsed[i][scale.axis]; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(value)) { values.push(value); } } return values; } getMaxOverflow() { return false; } getLabelAndValue(index) { const meta = this._cachedMeta; const iScale = meta.iScale; const vScale = meta.vScale; const parsed = this.getParsed(index); return { label: iScale ? '' + iScale.getLabelForValue(parsed[iScale.axis]) : '', value: vScale ? '' + vScale.getLabelForValue(parsed[vScale.axis]) : '' }; } _update(mode) { const meta = this._cachedMeta; this.update(mode || 'default'); meta._clip = toClip((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(this.options.clip, defaultClip(meta.xScale, meta.yScale, this.getMaxOverflow()))); } update(mode) {} draw() { const ctx = this._ctx; const chart = this.chart; const meta = this._cachedMeta; const elements = meta.data || []; const area = chart.chartArea; const active = []; const start = this._drawStart || 0; const count = this._drawCount || elements.length - start; const drawActiveElementsOnTop = this.options.drawActiveElementsOnTop; let i; if (meta.dataset) { meta.dataset.draw(ctx, area, start, count); } for(i = start; i < start + count; ++i){ const element = elements[i]; if (element.hidden) { continue; } if (element.active && drawActiveElementsOnTop) { active.push(element); } else { element.draw(ctx, area); } } for(i = 0; i < active.length; ++i){ active[i].draw(ctx, area); } } getStyle(index, active) { const mode = active ? 'active' : 'default'; return index === undefined && this._cachedMeta.dataset ? this.resolveDatasetElementOptions(mode) : this.resolveDataElementOptions(index || 0, mode); } getContext(index, active, mode) { const dataset = this.getDataset(); let context; if (index >= 0 && index < this._cachedMeta.data.length) { const element = this._cachedMeta.data[index]; context = element.$context || (element.$context = createDataContext(this.getContext(), index, element)); context.parsed = this.getParsed(index); context.raw = dataset.data[index]; context.index = context.dataIndex = index; } else { context = this.$context || (this.$context = createDatasetContext(this.chart.getContext(), this.index)); context.dataset = dataset; context.index = context.datasetIndex = this.index; } context.active = !!active; context.mode = mode; return context; } resolveDatasetElementOptions(mode) { return this._resolveElementOptions(this.datasetElementType.id, mode); } resolveDataElementOptions(index, mode) { return this._resolveElementOptions(this.dataElementType.id, mode, index); } _resolveElementOptions(elementType, mode = 'default', index) { const active = mode === 'active'; const cache = this._cachedDataOpts; const cacheKey = elementType + '-' + mode; const cached = cache[cacheKey]; const sharing = this.enableOptionSharing && (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.h)(index); if (cached) { return cloneIfNotShared(cached, sharing); } const config = this.chart.config; const scopeKeys = config.datasetElementScopeKeys(this._type, elementType); const prefixes = active ? [ `${elementType}Hover`, 'hover', elementType, '' ] : [ elementType, '' ]; const scopes = config.getOptionScopes(this.getDataset(), scopeKeys); const names = Object.keys(_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d.elements[elementType]); const context = ()=>this.getContext(index, active, mode); const values = config.resolveNamedOptions(scopes, names, context, prefixes); if (values.$shared) { values.$shared = sharing; cache[cacheKey] = Object.freeze(cloneIfNotShared(values, sharing)); } return values; } _resolveAnimations(index, transition, active) { const chart = this.chart; const cache = this._cachedDataOpts; const cacheKey = `animation-${transition}`; const cached = cache[cacheKey]; if (cached) { return cached; } let options; if (chart.options.animation !== false) { const config = this.chart.config; const scopeKeys = config.datasetAnimationScopeKeys(this._type, transition); const scopes = config.getOptionScopes(this.getDataset(), scopeKeys); options = config.createResolver(scopes, this.getContext(index, active, transition)); } const animations = new Animations(chart, options && options.animations); if (options && options._cacheable) { cache[cacheKey] = Object.freeze(animations); } return animations; } getSharedOptions(options) { if (!options.$shared) { return; } return this._sharedOptions || (this._sharedOptions = Object.assign({}, options)); } includeOptions(mode, sharedOptions) { return !sharedOptions || isDirectUpdateMode(mode) || this.chart._animationsDisabled; } _getSharedOptions(start, mode) { const firstOpts = this.resolveDataElementOptions(start, mode); const previouslySharedOptions = this._sharedOptions; const sharedOptions = this.getSharedOptions(firstOpts); const includeOptions = this.includeOptions(mode, sharedOptions) || sharedOptions !== previouslySharedOptions; this.updateSharedOptions(sharedOptions, mode, firstOpts); return { sharedOptions, includeOptions }; } updateElement(element, index, properties, mode) { if (isDirectUpdateMode(mode)) { Object.assign(element, properties); } else { this._resolveAnimations(index, mode).update(element, properties); } } updateSharedOptions(sharedOptions, mode, newOptions) { if (sharedOptions && !isDirectUpdateMode(mode)) { this._resolveAnimations(undefined, mode).update(sharedOptions, newOptions); } } _setStyle(element, index, mode, active) { element.active = active; const options = this.getStyle(index, active); this._resolveAnimations(index, mode, active).update(element, { options: !active && this.getSharedOptions(options) || options }); } removeHoverStyle(element, datasetIndex, index) { this._setStyle(element, index, 'active', false); } setHoverStyle(element, datasetIndex, index) { this._setStyle(element, index, 'active', true); } _removeDatasetHoverStyle() { const element = this._cachedMeta.dataset; if (element) { this._setStyle(element, undefined, 'active', false); } } _setDatasetHoverStyle() { const element = this._cachedMeta.dataset; if (element) { this._setStyle(element, undefined, 'active', true); } } _resyncElements(resetNewElements) { const data = this._data; const elements = this._cachedMeta.data; for (const [method, arg1, arg2] of this._syncList){ this[method](arg1, arg2); } this._syncList = []; const numMeta = elements.length; const numData = data.length; const count = Math.min(numData, numMeta); if (count) { this.parse(0, count); } if (numData > numMeta) { this._insertElements(numMeta, numData - numMeta, resetNewElements); } else if (numData < numMeta) { this._removeElements(numData, numMeta - numData); } } _insertElements(start, count, resetNewElements = true) { const meta = this._cachedMeta; const data = meta.data; const end = start + count; let i; const move = (arr)=>{ arr.length += count; for(i = arr.length - 1; i >= end; i--){ arr[i] = arr[i - count]; } }; move(data); for(i = start; i < end; ++i){ data[i] = new this.dataElementType(); } if (this._parsing) { move(meta._parsed); } this.parse(start, count); if (resetNewElements) { this.updateElements(data, start, count, 'reset'); } } updateElements(element, start, count, mode) {} _removeElements(start, count) { const meta = this._cachedMeta; if (this._parsing) { const removed = meta._parsed.splice(start, count); if (meta._stacked) { clearStacks(meta, removed); } } meta.data.splice(start, count); } _sync(args) { if (this._parsing) { this._syncList.push(args); } else { const [method, arg1, arg2] = args; this[method](arg1, arg2); } this.chart._dataChanges.push([ this.index, ...args ]); } _onDataPush() { const count = arguments.length; this._sync([ '_insertElements', this.getDataset().data.length - count, count ]); } _onDataPop() { this._sync([ '_removeElements', this._cachedMeta.data.length - 1, 1 ]); } _onDataShift() { this._sync([ '_removeElements', 0, 1 ]); } _onDataSplice(start, count) { if (count) { this._sync([ '_removeElements', start, count ]); } const newCount = arguments.length - 2; if (newCount) { this._sync([ '_insertElements', start, newCount ]); } } _onDataUnshift() { this._sync([ '_insertElements', 0, arguments.length ]); } } function getAllScaleValues(scale, type) { if (!scale._cache.$bar) { const visibleMetas = scale.getMatchingVisibleMetas(type); let values = []; for(let i = 0, ilen = visibleMetas.length; i < ilen; i++){ values = values.concat(visibleMetas[i].controller.getAllParsedValues(scale)); } scale._cache.$bar = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__._)(values.sort((a, b)=>a - b)); } return scale._cache.$bar; } function computeMinSampleSize(meta) { const scale = meta.iScale; const values = getAllScaleValues(scale, meta.type); let min = scale._length; let i, ilen, curr, prev; const updateMinAndPrev = ()=>{ if (curr === 32767 || curr === -32768) { return; } if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.h)(prev)) { min = Math.min(min, Math.abs(curr - prev) || min); } prev = curr; }; for(i = 0, ilen = values.length; i < ilen; ++i){ curr = scale.getPixelForValue(values[i]); updateMinAndPrev(); } prev = undefined; for(i = 0, ilen = scale.ticks.length; i < ilen; ++i){ curr = scale.getPixelForTick(i); updateMinAndPrev(); } return min; } function computeFitCategoryTraits(index, ruler, options, stackCount) { const thickness = options.barThickness; let size, ratio; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(thickness)) { size = ruler.min * options.categoryPercentage; ratio = options.barPercentage; } else { size = thickness * stackCount; ratio = 1; } return { chunk: size / stackCount, ratio, start: ruler.pixels[index] - size / 2 }; } function computeFlexCategoryTraits(index, ruler, options, stackCount) { const pixels = ruler.pixels; const curr = pixels[index]; let prev = index > 0 ? pixels[index - 1] : null; let next = index < pixels.length - 1 ? pixels[index + 1] : null; const percent = options.categoryPercentage; if (prev === null) { prev = curr - (next === null ? ruler.end - ruler.start : next - curr); } if (next === null) { next = curr + curr - prev; } const start = curr - (curr - Math.min(prev, next)) / 2 * percent; const size = Math.abs(next - prev) / 2 * percent; return { chunk: size / stackCount, ratio: options.barPercentage, start }; } function parseFloatBar(entry, item, vScale, i) { const startValue = vScale.parse(entry[0], i); const endValue = vScale.parse(entry[1], i); const min = Math.min(startValue, endValue); const max = Math.max(startValue, endValue); let barStart = min; let barEnd = max; if (Math.abs(min) > Math.abs(max)) { barStart = max; barEnd = min; } item[vScale.axis] = barEnd; item._custom = { barStart, barEnd, start: startValue, end: endValue, min, max }; } function parseValue(entry, item, vScale, i) { if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.b)(entry)) { parseFloatBar(entry, item, vScale, i); } else { item[vScale.axis] = vScale.parse(entry, i); } return item; } function parseArrayOrPrimitive(meta, data, start, count) { const iScale = meta.iScale; const vScale = meta.vScale; const labels = iScale.getLabels(); const singleScale = iScale === vScale; const parsed = []; let i, ilen, item, entry; for(i = start, ilen = start + count; i < ilen; ++i){ entry = data[i]; item = {}; item[iScale.axis] = singleScale || iScale.parse(labels[i], i); parsed.push(parseValue(entry, item, vScale, i)); } return parsed; } function isFloatBar(custom) { return custom && custom.barStart !== undefined && custom.barEnd !== undefined; } function barSign(size, vScale, actualBase) { if (size !== 0) { return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.s)(size); } return (vScale.isHorizontal() ? 1 : -1) * (vScale.min >= actualBase ? 1 : -1); } function borderProps(properties) { let reverse, start, end, top, bottom; if (properties.horizontal) { reverse = properties.base > properties.x; start = 'left'; end = 'right'; } else { reverse = properties.base < properties.y; start = 'bottom'; end = 'top'; } if (reverse) { top = 'end'; bottom = 'start'; } else { top = 'start'; bottom = 'end'; } return { start, end, reverse, top, bottom }; } function setBorderSkipped(properties, options, stack, index) { let edge = options.borderSkipped; const res = {}; if (!edge) { properties.borderSkipped = res; return; } if (edge === true) { properties.borderSkipped = { top: true, right: true, bottom: true, left: true }; return; } const { start , end , reverse , top , bottom } = borderProps(properties); if (edge === 'middle' && stack) { properties.enableBorderRadius = true; if ((stack._top || 0) === index) { edge = top; } else if ((stack._bottom || 0) === index) { edge = bottom; } else { res[parseEdge(bottom, start, end, reverse)] = true; edge = top; } } res[parseEdge(edge, start, end, reverse)] = true; properties.borderSkipped = res; } function parseEdge(edge, a, b, reverse) { if (reverse) { edge = swap(edge, a, b); edge = startEnd(edge, b, a); } else { edge = startEnd(edge, a, b); } return edge; } function swap(orig, v1, v2) { return orig === v1 ? v2 : orig === v2 ? v1 : orig; } function startEnd(v, start, end) { return v === 'start' ? start : v === 'end' ? end : v; } function setInflateAmount(properties, { inflateAmount }, ratio) { properties.inflateAmount = inflateAmount === 'auto' ? ratio === 1 ? 0.33 : 0 : inflateAmount; } class BarController extends DatasetController { static id = 'bar'; static defaults = { datasetElementType: false, dataElementType: 'bar', categoryPercentage: 0.8, barPercentage: 0.9, grouped: true, animations: { numbers: { type: 'number', properties: [ 'x', 'y', 'base', 'width', 'height' ] } } }; static overrides = { scales: { _index_: { type: 'category', offset: true, grid: { offset: true } }, _value_: { type: 'linear', beginAtZero: true } } }; parsePrimitiveData(meta, data, start, count) { return parseArrayOrPrimitive(meta, data, start, count); } parseArrayData(meta, data, start, count) { return parseArrayOrPrimitive(meta, data, start, count); } parseObjectData(meta, data, start, count) { const { iScale , vScale } = meta; const { xAxisKey ='x' , yAxisKey ='y' } = this._parsing; const iAxisKey = iScale.axis === 'x' ? xAxisKey : yAxisKey; const vAxisKey = vScale.axis === 'x' ? xAxisKey : yAxisKey; const parsed = []; let i, ilen, item, obj; for(i = start, ilen = start + count; i < ilen; ++i){ obj = data[i]; item = {}; item[iScale.axis] = iScale.parse((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.f)(obj, iAxisKey), i); parsed.push(parseValue((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.f)(obj, vAxisKey), item, vScale, i)); } return parsed; } updateRangeFromParsed(range, scale, parsed, stack) { super.updateRangeFromParsed(range, scale, parsed, stack); const custom = parsed._custom; if (custom && scale === this._cachedMeta.vScale) { range.min = Math.min(range.min, custom.min); range.max = Math.max(range.max, custom.max); } } getMaxOverflow() { return 0; } getLabelAndValue(index) { const meta = this._cachedMeta; const { iScale , vScale } = meta; const parsed = this.getParsed(index); const custom = parsed._custom; const value = isFloatBar(custom) ? '[' + custom.start + ', ' + custom.end + ']' : '' + vScale.getLabelForValue(parsed[vScale.axis]); return { label: '' + iScale.getLabelForValue(parsed[iScale.axis]), value }; } initialize() { this.enableOptionSharing = true; super.initialize(); const meta = this._cachedMeta; meta.stack = this.getDataset().stack; } update(mode) { const meta = this._cachedMeta; this.updateElements(meta.data, 0, meta.data.length, mode); } updateElements(bars, start, count, mode) { const reset = mode === 'reset'; const { index , _cachedMeta: { vScale } } = this; const base = vScale.getBasePixel(); const horizontal = vScale.isHorizontal(); const ruler = this._getRuler(); const { sharedOptions , includeOptions } = this._getSharedOptions(start, mode); for(let i = start; i < start + count; i++){ const parsed = this.getParsed(i); const vpixels = reset || (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(parsed[vScale.axis]) ? { base, head: base } : this._calculateBarValuePixels(i); const ipixels = this._calculateBarIndexPixels(i, ruler); const stack = (parsed._stacks || {})[vScale.axis]; const properties = { horizontal, base: vpixels.base, enableBorderRadius: !stack || isFloatBar(parsed._custom) || index === stack._top || index === stack._bottom, x: horizontal ? vpixels.head : ipixels.center, y: horizontal ? ipixels.center : vpixels.head, height: horizontal ? ipixels.size : Math.abs(vpixels.size), width: horizontal ? Math.abs(vpixels.size) : ipixels.size }; if (includeOptions) { properties.options = sharedOptions || this.resolveDataElementOptions(i, bars[i].active ? 'active' : mode); } const options = properties.options || bars[i].options; setBorderSkipped(properties, options, stack, index); setInflateAmount(properties, options, ruler.ratio); this.updateElement(bars[i], i, properties, mode); } } _getStacks(last, dataIndex) { const { iScale } = this._cachedMeta; const metasets = iScale.getMatchingVisibleMetas(this._type).filter((meta)=>meta.controller.options.grouped); const stacked = iScale.options.stacked; const stacks = []; const skipNull = (meta)=>{ const parsed = meta.controller.getParsed(dataIndex); const val = parsed && parsed[meta.vScale.axis]; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(val) || isNaN(val)) { return true; } }; for (const meta of metasets){ if (dataIndex !== undefined && skipNull(meta)) { continue; } if (stacked === false || stacks.indexOf(meta.stack) === -1 || stacked === undefined && meta.stack === undefined) { stacks.push(meta.stack); } if (meta.index === last) { break; } } if (!stacks.length) { stacks.push(undefined); } return stacks; } _getStackCount(index) { return this._getStacks(undefined, index).length; } _getStackIndex(datasetIndex, name, dataIndex) { const stacks = this._getStacks(datasetIndex, dataIndex); const index = name !== undefined ? stacks.indexOf(name) : -1; return index === -1 ? stacks.length - 1 : index; } _getRuler() { const opts = this.options; const meta = this._cachedMeta; const iScale = meta.iScale; const pixels = []; let i, ilen; for(i = 0, ilen = meta.data.length; i < ilen; ++i){ pixels.push(iScale.getPixelForValue(this.getParsed(i)[iScale.axis], i)); } const barThickness = opts.barThickness; const min = barThickness || computeMinSampleSize(meta); return { min, pixels, start: iScale._startPixel, end: iScale._endPixel, stackCount: this._getStackCount(), scale: iScale, grouped: opts.grouped, ratio: barThickness ? 1 : opts.categoryPercentage * opts.barPercentage }; } _calculateBarValuePixels(index) { const { _cachedMeta: { vScale , _stacked , index: datasetIndex } , options: { base: baseValue , minBarLength } } = this; const actualBase = baseValue || 0; const parsed = this.getParsed(index); const custom = parsed._custom; const floating = isFloatBar(custom); let value = parsed[vScale.axis]; let start = 0; let length = _stacked ? this.applyStack(vScale, parsed, _stacked) : value; let head, size; if (length !== value) { start = length - value; length = value; } if (floating) { value = custom.barStart; length = custom.barEnd - custom.barStart; if (value !== 0 && (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.s)(value) !== (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.s)(custom.barEnd)) { start = 0; } start += value; } const startValue = !(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(baseValue) && !floating ? baseValue : start; let base = vScale.getPixelForValue(startValue); if (this.chart.getDataVisibility(index)) { head = vScale.getPixelForValue(start + length); } else { head = base; } size = head - base; if (Math.abs(size) < minBarLength) { size = barSign(size, vScale, actualBase) * minBarLength; if (value === actualBase) { base -= size / 2; } const startPixel = vScale.getPixelForDecimal(0); const endPixel = vScale.getPixelForDecimal(1); const min = Math.min(startPixel, endPixel); const max = Math.max(startPixel, endPixel); base = Math.max(Math.min(base, max), min); head = base + size; if (_stacked && !floating) { parsed._stacks[vScale.axis]._visualValues[datasetIndex] = vScale.getValueForPixel(head) - vScale.getValueForPixel(base); } } if (base === vScale.getPixelForValue(actualBase)) { const halfGrid = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.s)(size) * vScale.getLineWidthForValue(actualBase) / 2; base += halfGrid; size -= halfGrid; } return { size, base, head, center: head + size / 2 }; } _calculateBarIndexPixels(index, ruler) { const scale = ruler.scale; const options = this.options; const skipNull = options.skipNull; const maxBarThickness = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(options.maxBarThickness, Infinity); let center, size; if (ruler.grouped) { const stackCount = skipNull ? this._getStackCount(index) : ruler.stackCount; const range = options.barThickness === 'flex' ? computeFlexCategoryTraits(index, ruler, options, stackCount) : computeFitCategoryTraits(index, ruler, options, stackCount); const stackIndex = this._getStackIndex(this.index, this._cachedMeta.stack, skipNull ? index : undefined); center = range.start + range.chunk * stackIndex + range.chunk / 2; size = Math.min(maxBarThickness, range.chunk * range.ratio); } else { center = scale.getPixelForValue(this.getParsed(index)[scale.axis], index); size = Math.min(maxBarThickness, ruler.min * ruler.ratio); } return { base: center - size / 2, head: center + size / 2, center, size }; } draw() { const meta = this._cachedMeta; const vScale = meta.vScale; const rects = meta.data; const ilen = rects.length; let i = 0; for(; i < ilen; ++i){ if (this.getParsed(i)[vScale.axis] !== null) { rects[i].draw(this._ctx); } } } } class BubbleController extends DatasetController { static id = 'bubble'; static defaults = { datasetElementType: false, dataElementType: 'point', animations: { numbers: { type: 'number', properties: [ 'x', 'y', 'borderWidth', 'radius' ] } } }; static overrides = { scales: { x: { type: 'linear' }, y: { type: 'linear' } } }; initialize() { this.enableOptionSharing = true; super.initialize(); } parsePrimitiveData(meta, data, start, count) { const parsed = super.parsePrimitiveData(meta, data, start, count); for(let i = 0; i < parsed.length; i++){ parsed[i]._custom = this.resolveDataElementOptions(i + start).radius; } return parsed; } parseArrayData(meta, data, start, count) { const parsed = super.parseArrayData(meta, data, start, count); for(let i = 0; i < parsed.length; i++){ const item = data[start + i]; parsed[i]._custom = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(item[2], this.resolveDataElementOptions(i + start).radius); } return parsed; } parseObjectData(meta, data, start, count) { const parsed = super.parseObjectData(meta, data, start, count); for(let i = 0; i < parsed.length; i++){ const item = data[start + i]; parsed[i]._custom = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(item && item.r && +item.r, this.resolveDataElementOptions(i + start).radius); } return parsed; } getMaxOverflow() { const data = this._cachedMeta.data; let max = 0; for(let i = data.length - 1; i >= 0; --i){ max = Math.max(max, data[i].size(this.resolveDataElementOptions(i)) / 2); } return max > 0 && max; } getLabelAndValue(index) { const meta = this._cachedMeta; const labels = this.chart.data.labels || []; const { xScale , yScale } = meta; const parsed = this.getParsed(index); const x = xScale.getLabelForValue(parsed.x); const y = yScale.getLabelForValue(parsed.y); const r = parsed._custom; return { label: labels[index] || '', value: '(' + x + ', ' + y + (r ? ', ' + r : '') + ')' }; } update(mode) { const points = this._cachedMeta.data; this.updateElements(points, 0, points.length, mode); } updateElements(points, start, count, mode) { const reset = mode === 'reset'; const { iScale , vScale } = this._cachedMeta; const { sharedOptions , includeOptions } = this._getSharedOptions(start, mode); const iAxis = iScale.axis; const vAxis = vScale.axis; for(let i = start; i < start + count; i++){ const point = points[i]; const parsed = !reset && this.getParsed(i); const properties = {}; const iPixel = properties[iAxis] = reset ? iScale.getPixelForDecimal(0.5) : iScale.getPixelForValue(parsed[iAxis]); const vPixel = properties[vAxis] = reset ? vScale.getBasePixel() : vScale.getPixelForValue(parsed[vAxis]); properties.skip = isNaN(iPixel) || isNaN(vPixel); if (includeOptions) { properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? 'active' : mode); if (reset) { properties.options.radius = 0; } } this.updateElement(point, i, properties, mode); } } resolveDataElementOptions(index, mode) { const parsed = this.getParsed(index); let values = super.resolveDataElementOptions(index, mode); if (values.$shared) { values = Object.assign({}, values, { $shared: false }); } const radius = values.radius; if (mode !== 'active') { values.radius = 0; } values.radius += (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(parsed && parsed._custom, radius); return values; } } function getRatioAndOffset(rotation, circumference, cutout) { let ratioX = 1; let ratioY = 1; let offsetX = 0; let offsetY = 0; if (circumference < _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.T) { const startAngle = rotation; const endAngle = startAngle + circumference; const startX = Math.cos(startAngle); const startY = Math.sin(startAngle); const endX = Math.cos(endAngle); const endY = Math.sin(endAngle); const calcMax = (angle, a, b)=>(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.p)(angle, startAngle, endAngle, true) ? 1 : Math.max(a, a * cutout, b, b * cutout); const calcMin = (angle, a, b)=>(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.p)(angle, startAngle, endAngle, true) ? -1 : Math.min(a, a * cutout, b, b * cutout); const maxX = calcMax(0, startX, endX); const maxY = calcMax(_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.H, startY, endY); const minX = calcMin(_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.P, startX, endX); const minY = calcMin(_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.P + _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.H, startY, endY); ratioX = (maxX - minX) / 2; ratioY = (maxY - minY) / 2; offsetX = -(maxX + minX) / 2; offsetY = -(maxY + minY) / 2; } return { ratioX, ratioY, offsetX, offsetY }; } class DoughnutController extends DatasetController { static id = 'doughnut'; static defaults = { datasetElementType: false, dataElementType: 'arc', animation: { animateRotate: true, animateScale: false }, animations: { numbers: { type: 'number', properties: [ 'circumference', 'endAngle', 'innerRadius', 'outerRadius', 'startAngle', 'x', 'y', 'offset', 'borderWidth', 'spacing' ] } }, cutout: '50%', rotation: 0, circumference: 360, radius: '100%', spacing: 0, indexAxis: 'r' }; static descriptors = { _scriptable: (name)=>name !== 'spacing', _indexable: (name)=>name !== 'spacing' && !name.startsWith('borderDash') && !name.startsWith('hoverBorderDash') }; static overrides = { aspectRatio: 1, plugins: { legend: { labels: { generateLabels (chart) { const data = chart.data; if (data.labels.length && data.datasets.length) { const { labels: { pointStyle , color } } = chart.legend.options; return data.labels.map((label, i)=>{ const meta = chart.getDatasetMeta(0); const style = meta.controller.getStyle(i); return { text: label, fillStyle: style.backgroundColor, strokeStyle: style.borderColor, fontColor: color, lineWidth: style.borderWidth, pointStyle: pointStyle, hidden: !chart.getDataVisibility(i), index: i }; }); } return []; } }, onClick (e, legendItem, legend) { legend.chart.toggleDataVisibility(legendItem.index); legend.chart.update(); } } } }; constructor(chart, datasetIndex){ super(chart, datasetIndex); this.enableOptionSharing = true; this.innerRadius = undefined; this.outerRadius = undefined; this.offsetX = undefined; this.offsetY = undefined; } linkScales() {} parse(start, count) { const data = this.getDataset().data; const meta = this._cachedMeta; if (this._parsing === false) { meta._parsed = data; } else { let getter = (i)=>+data[i]; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(data[start])) { const { key ='value' } = this._parsing; getter = (i)=>+(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.f)(data[i], key); } let i, ilen; for(i = start, ilen = start + count; i < ilen; ++i){ meta._parsed[i] = getter(i); } } } _getRotation() { return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.t)(this.options.rotation - 90); } _getCircumference() { return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.t)(this.options.circumference); } _getRotationExtents() { let min = _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.T; let max = -_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.T; for(let i = 0; i < this.chart.data.datasets.length; ++i){ if (this.chart.isDatasetVisible(i) && this.chart.getDatasetMeta(i).type === this._type) { const controller = this.chart.getDatasetMeta(i).controller; const rotation = controller._getRotation(); const circumference = controller._getCircumference(); min = Math.min(min, rotation); max = Math.max(max, rotation + circumference); } } return { rotation: min, circumference: max - min }; } update(mode) { const chart = this.chart; const { chartArea } = chart; const meta = this._cachedMeta; const arcs = meta.data; const spacing = this.getMaxBorderWidth() + this.getMaxOffset(arcs) + this.options.spacing; const maxSize = Math.max((Math.min(chartArea.width, chartArea.height) - spacing) / 2, 0); const cutout = Math.min((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.m)(this.options.cutout, maxSize), 1); const chartWeight = this._getRingWeight(this.index); const { circumference , rotation } = this._getRotationExtents(); const { ratioX , ratioY , offsetX , offsetY } = getRatioAndOffset(rotation, circumference, cutout); const maxWidth = (chartArea.width - spacing) / ratioX; const maxHeight = (chartArea.height - spacing) / ratioY; const maxRadius = Math.max(Math.min(maxWidth, maxHeight) / 2, 0); const outerRadius = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.n)(this.options.radius, maxRadius); const innerRadius = Math.max(outerRadius * cutout, 0); const radiusLength = (outerRadius - innerRadius) / this._getVisibleDatasetWeightTotal(); this.offsetX = offsetX * outerRadius; this.offsetY = offsetY * outerRadius; meta.total = this.calculateTotal(); this.outerRadius = outerRadius - radiusLength * this._getRingWeightOffset(this.index); this.innerRadius = Math.max(this.outerRadius - radiusLength * chartWeight, 0); this.updateElements(arcs, 0, arcs.length, mode); } _circumference(i, reset) { const opts = this.options; const meta = this._cachedMeta; const circumference = this._getCircumference(); if (reset && opts.animation.animateRotate || !this.chart.getDataVisibility(i) || meta._parsed[i] === null || meta.data[i].hidden) { return 0; } return this.calculateCircumference(meta._parsed[i] * circumference / _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.T); } updateElements(arcs, start, count, mode) { const reset = mode === 'reset'; const chart = this.chart; const chartArea = chart.chartArea; const opts = chart.options; const animationOpts = opts.animation; const centerX = (chartArea.left + chartArea.right) / 2; const centerY = (chartArea.top + chartArea.bottom) / 2; const animateScale = reset && animationOpts.animateScale; const innerRadius = animateScale ? 0 : this.innerRadius; const outerRadius = animateScale ? 0 : this.outerRadius; const { sharedOptions , includeOptions } = this._getSharedOptions(start, mode); let startAngle = this._getRotation(); let i; for(i = 0; i < start; ++i){ startAngle += this._circumference(i, reset); } for(i = start; i < start + count; ++i){ const circumference = this._circumference(i, reset); const arc = arcs[i]; const properties = { x: centerX + this.offsetX, y: centerY + this.offsetY, startAngle, endAngle: startAngle + circumference, circumference, outerRadius, innerRadius }; if (includeOptions) { properties.options = sharedOptions || this.resolveDataElementOptions(i, arc.active ? 'active' : mode); } startAngle += circumference; this.updateElement(arc, i, properties, mode); } } calculateTotal() { const meta = this._cachedMeta; const metaData = meta.data; let total = 0; let i; for(i = 0; i < metaData.length; i++){ const value = meta._parsed[i]; if (value !== null && !isNaN(value) && this.chart.getDataVisibility(i) && !metaData[i].hidden) { total += Math.abs(value); } } return total; } calculateCircumference(value) { const total = this._cachedMeta.total; if (total > 0 && !isNaN(value)) { return _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.T * (Math.abs(value) / total); } return 0; } getLabelAndValue(index) { const meta = this._cachedMeta; const chart = this.chart; const labels = chart.data.labels || []; const value = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.o)(meta._parsed[index], chart.options.locale); return { label: labels[index] || '', value }; } getMaxBorderWidth(arcs) { let max = 0; const chart = this.chart; let i, ilen, meta, controller, options; if (!arcs) { for(i = 0, ilen = chart.data.datasets.length; i < ilen; ++i){ if (chart.isDatasetVisible(i)) { meta = chart.getDatasetMeta(i); arcs = meta.data; controller = meta.controller; break; } } } if (!arcs) { return 0; } for(i = 0, ilen = arcs.length; i < ilen; ++i){ options = controller.resolveDataElementOptions(i); if (options.borderAlign !== 'inner') { max = Math.max(max, options.borderWidth || 0, options.hoverBorderWidth || 0); } } return max; } getMaxOffset(arcs) { let max = 0; for(let i = 0, ilen = arcs.length; i < ilen; ++i){ const options = this.resolveDataElementOptions(i); max = Math.max(max, options.offset || 0, options.hoverOffset || 0); } return max; } _getRingWeightOffset(datasetIndex) { let ringWeightOffset = 0; for(let i = 0; i < datasetIndex; ++i){ if (this.chart.isDatasetVisible(i)) { ringWeightOffset += this._getRingWeight(i); } } return ringWeightOffset; } _getRingWeight(datasetIndex) { return Math.max((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(this.chart.data.datasets[datasetIndex].weight, 1), 0); } _getVisibleDatasetWeightTotal() { return this._getRingWeightOffset(this.chart.data.datasets.length) || 1; } } class LineController extends DatasetController { static id = 'line'; static defaults = { datasetElementType: 'line', dataElementType: 'point', showLine: true, spanGaps: false }; static overrides = { scales: { _index_: { type: 'category' }, _value_: { type: 'linear' } } }; initialize() { this.enableOptionSharing = true; this.supportsDecimation = true; super.initialize(); } update(mode) { const meta = this._cachedMeta; const { dataset: line , data: points = [] , _dataset } = meta; const animationsDisabled = this.chart._animationsDisabled; let { start , count } = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.q)(meta, points, animationsDisabled); this._drawStart = start; this._drawCount = count; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.w)(meta)) { start = 0; count = points.length; } line._chart = this.chart; line._datasetIndex = this.index; line._decimated = !!_dataset._decimated; line.points = points; const options = this.resolveDatasetElementOptions(mode); if (!this.options.showLine) { options.borderWidth = 0; } options.segment = this.options.segment; this.updateElement(line, undefined, { animated: !animationsDisabled, options }, mode); this.updateElements(points, start, count, mode); } updateElements(points, start, count, mode) { const reset = mode === 'reset'; const { iScale , vScale , _stacked , _dataset } = this._cachedMeta; const { sharedOptions , includeOptions } = this._getSharedOptions(start, mode); const iAxis = iScale.axis; const vAxis = vScale.axis; const { spanGaps , segment } = this.options; const maxGapLength = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.x)(spanGaps) ? spanGaps : Number.POSITIVE_INFINITY; const directUpdate = this.chart._animationsDisabled || reset || mode === 'none'; const end = start + count; const pointsCount = points.length; let prevParsed = start > 0 && this.getParsed(start - 1); for(let i = 0; i < pointsCount; ++i){ const point = points[i]; const properties = directUpdate ? point : {}; if (i < start || i >= end) { properties.skip = true; continue; } const parsed = this.getParsed(i); const nullData = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(parsed[vAxis]); const iPixel = properties[iAxis] = iScale.getPixelForValue(parsed[iAxis], i); const vPixel = properties[vAxis] = reset || nullData ? vScale.getBasePixel() : vScale.getPixelForValue(_stacked ? this.applyStack(vScale, parsed, _stacked) : parsed[vAxis], i); properties.skip = isNaN(iPixel) || isNaN(vPixel) || nullData; properties.stop = i > 0 && Math.abs(parsed[iAxis] - prevParsed[iAxis]) > maxGapLength; if (segment) { properties.parsed = parsed; properties.raw = _dataset.data[i]; } if (includeOptions) { properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? 'active' : mode); } if (!directUpdate) { this.updateElement(point, i, properties, mode); } prevParsed = parsed; } } getMaxOverflow() { const meta = this._cachedMeta; const dataset = meta.dataset; const border = dataset.options && dataset.options.borderWidth || 0; const data = meta.data || []; if (!data.length) { return border; } const firstPoint = data[0].size(this.resolveDataElementOptions(0)); const lastPoint = data[data.length - 1].size(this.resolveDataElementOptions(data.length - 1)); return Math.max(border, firstPoint, lastPoint) / 2; } draw() { const meta = this._cachedMeta; meta.dataset.updateControlPoints(this.chart.chartArea, meta.iScale.axis); super.draw(); } } class PolarAreaController extends DatasetController { static id = 'polarArea'; static defaults = { dataElementType: 'arc', animation: { animateRotate: true, animateScale: true }, animations: { numbers: { type: 'number', properties: [ 'x', 'y', 'startAngle', 'endAngle', 'innerRadius', 'outerRadius' ] } }, indexAxis: 'r', startAngle: 0 }; static overrides = { aspectRatio: 1, plugins: { legend: { labels: { generateLabels (chart) { const data = chart.data; if (data.labels.length && data.datasets.length) { const { labels: { pointStyle , color } } = chart.legend.options; return data.labels.map((label, i)=>{ const meta = chart.getDatasetMeta(0); const style = meta.controller.getStyle(i); return { text: label, fillStyle: style.backgroundColor, strokeStyle: style.borderColor, fontColor: color, lineWidth: style.borderWidth, pointStyle: pointStyle, hidden: !chart.getDataVisibility(i), index: i }; }); } return []; } }, onClick (e, legendItem, legend) { legend.chart.toggleDataVisibility(legendItem.index); legend.chart.update(); } } }, scales: { r: { type: 'radialLinear', angleLines: { display: false }, beginAtZero: true, grid: { circular: true }, pointLabels: { display: false }, startAngle: 0 } } }; constructor(chart, datasetIndex){ super(chart, datasetIndex); this.innerRadius = undefined; this.outerRadius = undefined; } getLabelAndValue(index) { const meta = this._cachedMeta; const chart = this.chart; const labels = chart.data.labels || []; const value = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.o)(meta._parsed[index].r, chart.options.locale); return { label: labels[index] || '', value }; } parseObjectData(meta, data, start, count) { return _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.y.bind(this)(meta, data, start, count); } update(mode) { const arcs = this._cachedMeta.data; this._updateRadius(); this.updateElements(arcs, 0, arcs.length, mode); } getMinMax() { const meta = this._cachedMeta; const range = { min: Number.POSITIVE_INFINITY, max: Number.NEGATIVE_INFINITY }; meta.data.forEach((element, index)=>{ const parsed = this.getParsed(index).r; if (!isNaN(parsed) && this.chart.getDataVisibility(index)) { if (parsed < range.min) { range.min = parsed; } if (parsed > range.max) { range.max = parsed; } } }); return range; } _updateRadius() { const chart = this.chart; const chartArea = chart.chartArea; const opts = chart.options; const minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top); const outerRadius = Math.max(minSize / 2, 0); const innerRadius = Math.max(opts.cutoutPercentage ? outerRadius / 100 * opts.cutoutPercentage : 1, 0); const radiusLength = (outerRadius - innerRadius) / chart.getVisibleDatasetCount(); this.outerRadius = outerRadius - radiusLength * this.index; this.innerRadius = this.outerRadius - radiusLength; } updateElements(arcs, start, count, mode) { const reset = mode === 'reset'; const chart = this.chart; const opts = chart.options; const animationOpts = opts.animation; const scale = this._cachedMeta.rScale; const centerX = scale.xCenter; const centerY = scale.yCenter; const datasetStartAngle = scale.getIndexAngle(0) - 0.5 * _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.P; let angle = datasetStartAngle; let i; const defaultAngle = 360 / this.countVisibleElements(); for(i = 0; i < start; ++i){ angle += this._computeAngle(i, mode, defaultAngle); } for(i = start; i < start + count; i++){ const arc = arcs[i]; let startAngle = angle; let endAngle = angle + this._computeAngle(i, mode, defaultAngle); let outerRadius = chart.getDataVisibility(i) ? scale.getDistanceFromCenterForValue(this.getParsed(i).r) : 0; angle = endAngle; if (reset) { if (animationOpts.animateScale) { outerRadius = 0; } if (animationOpts.animateRotate) { startAngle = endAngle = datasetStartAngle; } } const properties = { x: centerX, y: centerY, innerRadius: 0, outerRadius, startAngle, endAngle, options: this.resolveDataElementOptions(i, arc.active ? 'active' : mode) }; this.updateElement(arc, i, properties, mode); } } countVisibleElements() { const meta = this._cachedMeta; let count = 0; meta.data.forEach((element, index)=>{ if (!isNaN(this.getParsed(index).r) && this.chart.getDataVisibility(index)) { count++; } }); return count; } _computeAngle(index, mode, defaultAngle) { return this.chart.getDataVisibility(index) ? (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.t)(this.resolveDataElementOptions(index, mode).angle || defaultAngle) : 0; } } class PieController extends DoughnutController { static id = 'pie'; static defaults = { cutout: 0, rotation: 0, circumference: 360, radius: '100%' }; } class RadarController extends DatasetController { static id = 'radar'; static defaults = { datasetElementType: 'line', dataElementType: 'point', indexAxis: 'r', showLine: true, elements: { line: { fill: 'start' } } }; static overrides = { aspectRatio: 1, scales: { r: { type: 'radialLinear' } } }; getLabelAndValue(index) { const vScale = this._cachedMeta.vScale; const parsed = this.getParsed(index); return { label: vScale.getLabels()[index], value: '' + vScale.getLabelForValue(parsed[vScale.axis]) }; } parseObjectData(meta, data, start, count) { return _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.y.bind(this)(meta, data, start, count); } update(mode) { const meta = this._cachedMeta; const line = meta.dataset; const points = meta.data || []; const labels = meta.iScale.getLabels(); line.points = points; if (mode !== 'resize') { const options = this.resolveDatasetElementOptions(mode); if (!this.options.showLine) { options.borderWidth = 0; } const properties = { _loop: true, _fullLoop: labels.length === points.length, options }; this.updateElement(line, undefined, properties, mode); } this.updateElements(points, 0, points.length, mode); } updateElements(points, start, count, mode) { const scale = this._cachedMeta.rScale; const reset = mode === 'reset'; for(let i = start; i < start + count; i++){ const point = points[i]; const options = this.resolveDataElementOptions(i, point.active ? 'active' : mode); const pointPosition = scale.getPointPositionForValue(i, this.getParsed(i).r); const x = reset ? scale.xCenter : pointPosition.x; const y = reset ? scale.yCenter : pointPosition.y; const properties = { x, y, angle: pointPosition.angle, skip: isNaN(x) || isNaN(y), options }; this.updateElement(point, i, properties, mode); } } } class ScatterController extends DatasetController { static id = 'scatter'; static defaults = { datasetElementType: false, dataElementType: 'point', showLine: false, fill: false }; static overrides = { interaction: { mode: 'point' }, scales: { x: { type: 'linear' }, y: { type: 'linear' } } }; getLabelAndValue(index) { const meta = this._cachedMeta; const labels = this.chart.data.labels || []; const { xScale , yScale } = meta; const parsed = this.getParsed(index); const x = xScale.getLabelForValue(parsed.x); const y = yScale.getLabelForValue(parsed.y); return { label: labels[index] || '', value: '(' + x + ', ' + y + ')' }; } update(mode) { const meta = this._cachedMeta; const { data: points = [] } = meta; const animationsDisabled = this.chart._animationsDisabled; let { start , count } = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.q)(meta, points, animationsDisabled); this._drawStart = start; this._drawCount = count; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.w)(meta)) { start = 0; count = points.length; } if (this.options.showLine) { const { dataset: line , _dataset } = meta; line._chart = this.chart; line._datasetIndex = this.index; line._decimated = !!_dataset._decimated; line.points = points; const options = this.resolveDatasetElementOptions(mode); options.segment = this.options.segment; this.updateElement(line, undefined, { animated: !animationsDisabled, options }, mode); } this.updateElements(points, start, count, mode); } addElements() { const { showLine } = this.options; if (!this.datasetElementType && showLine) { this.datasetElementType = this.chart.registry.getElement('line'); } super.addElements(); } updateElements(points, start, count, mode) { const reset = mode === 'reset'; const { iScale , vScale , _stacked , _dataset } = this._cachedMeta; const firstOpts = this.resolveDataElementOptions(start, mode); const sharedOptions = this.getSharedOptions(firstOpts); const includeOptions = this.includeOptions(mode, sharedOptions); const iAxis = iScale.axis; const vAxis = vScale.axis; const { spanGaps , segment } = this.options; const maxGapLength = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.x)(spanGaps) ? spanGaps : Number.POSITIVE_INFINITY; const directUpdate = this.chart._animationsDisabled || reset || mode === 'none'; let prevParsed = start > 0 && this.getParsed(start - 1); for(let i = start; i < start + count; ++i){ const point = points[i]; const parsed = this.getParsed(i); const properties = directUpdate ? point : {}; const nullData = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(parsed[vAxis]); const iPixel = properties[iAxis] = iScale.getPixelForValue(parsed[iAxis], i); const vPixel = properties[vAxis] = reset || nullData ? vScale.getBasePixel() : vScale.getPixelForValue(_stacked ? this.applyStack(vScale, parsed, _stacked) : parsed[vAxis], i); properties.skip = isNaN(iPixel) || isNaN(vPixel) || nullData; properties.stop = i > 0 && Math.abs(parsed[iAxis] - prevParsed[iAxis]) > maxGapLength; if (segment) { properties.parsed = parsed; properties.raw = _dataset.data[i]; } if (includeOptions) { properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? 'active' : mode); } if (!directUpdate) { this.updateElement(point, i, properties, mode); } prevParsed = parsed; } this.updateSharedOptions(sharedOptions, mode, firstOpts); } getMaxOverflow() { const meta = this._cachedMeta; const data = meta.data || []; if (!this.options.showLine) { let max = 0; for(let i = data.length - 1; i >= 0; --i){ max = Math.max(max, data[i].size(this.resolveDataElementOptions(i)) / 2); } return max > 0 && max; } const dataset = meta.dataset; const border = dataset.options && dataset.options.borderWidth || 0; if (!data.length) { return border; } const firstPoint = data[0].size(this.resolveDataElementOptions(0)); const lastPoint = data[data.length - 1].size(this.resolveDataElementOptions(data.length - 1)); return Math.max(border, firstPoint, lastPoint) / 2; } } var controllers = /*#__PURE__*/Object.freeze({ __proto__: null, BarController: BarController, BubbleController: BubbleController, DoughnutController: DoughnutController, LineController: LineController, PieController: PieController, PolarAreaController: PolarAreaController, RadarController: RadarController, ScatterController: ScatterController }); /** * @namespace Chart._adapters * @since 2.8.0 * @private */ function abstract() { throw new Error('This method is not implemented: Check that a complete date adapter is provided.'); } /** * Date adapter (current used by the time scale) * @namespace Chart._adapters._date * @memberof Chart._adapters * @private */ class DateAdapterBase { /** * Override default date adapter methods. * Accepts type parameter to define options type. * @example * Chart._adapters._date.override<{myAdapterOption: string}>({ * init() { * console.log(this.options.myAdapterOption); * } * }) */ static override(members) { Object.assign(DateAdapterBase.prototype, members); } options; constructor(options){ this.options = options || {}; } // eslint-disable-next-line @typescript-eslint/no-empty-function init() {} formats() { return abstract(); } parse() { return abstract(); } format() { return abstract(); } add() { return abstract(); } diff() { return abstract(); } startOf() { return abstract(); } endOf() { return abstract(); } } var adapters = { _date: DateAdapterBase }; function binarySearch(metaset, axis, value, intersect) { const { controller , data , _sorted } = metaset; const iScale = controller._cachedMeta.iScale; if (iScale && axis === iScale.axis && axis !== 'r' && _sorted && data.length) { const lookupMethod = iScale._reversePixels ? _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.A : _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.B; if (!intersect) { return lookupMethod(data, axis, value); } else if (controller._sharedOptions) { const el = data[0]; const range = typeof el.getRange === 'function' && el.getRange(axis); if (range) { const start = lookupMethod(data, axis, value - range); const end = lookupMethod(data, axis, value + range); return { lo: start.lo, hi: end.hi }; } } } return { lo: 0, hi: data.length - 1 }; } function evaluateInteractionItems(chart, axis, position, handler, intersect) { const metasets = chart.getSortedVisibleDatasetMetas(); const value = position[axis]; for(let i = 0, ilen = metasets.length; i < ilen; ++i){ const { index , data } = metasets[i]; const { lo , hi } = binarySearch(metasets[i], axis, value, intersect); for(let j = lo; j <= hi; ++j){ const element = data[j]; if (!element.skip) { handler(element, index, j); } } } } function getDistanceMetricForAxis(axis) { const useX = axis.indexOf('x') !== -1; const useY = axis.indexOf('y') !== -1; return function(pt1, pt2) { const deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0; const deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0; return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2)); }; } function getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) { const items = []; if (!includeInvisible && !chart.isPointInArea(position)) { return items; } const evaluationFunc = function(element, datasetIndex, index) { if (!includeInvisible && !(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.C)(element, chart.chartArea, 0)) { return; } if (element.inRange(position.x, position.y, useFinalPosition)) { items.push({ element, datasetIndex, index }); } }; evaluateInteractionItems(chart, axis, position, evaluationFunc, true); return items; } function getNearestRadialItems(chart, position, axis, useFinalPosition) { let items = []; function evaluationFunc(element, datasetIndex, index) { const { startAngle , endAngle } = element.getProps([ 'startAngle', 'endAngle' ], useFinalPosition); const { angle } = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.D)(element, { x: position.x, y: position.y }); if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.p)(angle, startAngle, endAngle)) { items.push({ element, datasetIndex, index }); } } evaluateInteractionItems(chart, axis, position, evaluationFunc); return items; } function getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition, includeInvisible) { let items = []; const distanceMetric = getDistanceMetricForAxis(axis); let minDistance = Number.POSITIVE_INFINITY; function evaluationFunc(element, datasetIndex, index) { const inRange = element.inRange(position.x, position.y, useFinalPosition); if (intersect && !inRange) { return; } const center = element.getCenterPoint(useFinalPosition); const pointInArea = !!includeInvisible || chart.isPointInArea(center); if (!pointInArea && !inRange) { return; } const distance = distanceMetric(position, center); if (distance < minDistance) { items = [ { element, datasetIndex, index } ]; minDistance = distance; } else if (distance === minDistance) { items.push({ element, datasetIndex, index }); } } evaluateInteractionItems(chart, axis, position, evaluationFunc); return items; } function getNearestItems(chart, position, axis, intersect, useFinalPosition, includeInvisible) { if (!includeInvisible && !chart.isPointInArea(position)) { return []; } return axis === 'r' && !intersect ? getNearestRadialItems(chart, position, axis, useFinalPosition) : getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition, includeInvisible); } function getAxisItems(chart, position, axis, intersect, useFinalPosition) { const items = []; const rangeMethod = axis === 'x' ? 'inXRange' : 'inYRange'; let intersectsItem = false; evaluateInteractionItems(chart, axis, position, (element, datasetIndex, index)=>{ if (element[rangeMethod](position[axis], useFinalPosition)) { items.push({ element, datasetIndex, index }); intersectsItem = intersectsItem || element.inRange(position.x, position.y, useFinalPosition); } }); if (intersect && !intersectsItem) { return []; } return items; } var Interaction = { evaluateInteractionItems, modes: { index (chart, e, options, useFinalPosition) { const position = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.z)(e, chart); const axis = options.axis || 'x'; const includeInvisible = options.includeInvisible || false; const items = options.intersect ? getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) : getNearestItems(chart, position, axis, false, useFinalPosition, includeInvisible); const elements = []; if (!items.length) { return []; } chart.getSortedVisibleDatasetMetas().forEach((meta)=>{ const index = items[0].index; const element = meta.data[index]; if (element && !element.skip) { elements.push({ element, datasetIndex: meta.index, index }); } }); return elements; }, dataset (chart, e, options, useFinalPosition) { const position = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.z)(e, chart); const axis = options.axis || 'xy'; const includeInvisible = options.includeInvisible || false; let items = options.intersect ? getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) : getNearestItems(chart, position, axis, false, useFinalPosition, includeInvisible); if (items.length > 0) { const datasetIndex = items[0].datasetIndex; const data = chart.getDatasetMeta(datasetIndex).data; items = []; for(let i = 0; i < data.length; ++i){ items.push({ element: data[i], datasetIndex, index: i }); } } return items; }, point (chart, e, options, useFinalPosition) { const position = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.z)(e, chart); const axis = options.axis || 'xy'; const includeInvisible = options.includeInvisible || false; return getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible); }, nearest (chart, e, options, useFinalPosition) { const position = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.z)(e, chart); const axis = options.axis || 'xy'; const includeInvisible = options.includeInvisible || false; return getNearestItems(chart, position, axis, options.intersect, useFinalPosition, includeInvisible); }, x (chart, e, options, useFinalPosition) { const position = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.z)(e, chart); return getAxisItems(chart, position, 'x', options.intersect, useFinalPosition); }, y (chart, e, options, useFinalPosition) { const position = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.z)(e, chart); return getAxisItems(chart, position, 'y', options.intersect, useFinalPosition); } } }; const STATIC_POSITIONS = [ 'left', 'top', 'right', 'bottom' ]; function filterByPosition(array, position) { return array.filter((v)=>v.pos === position); } function filterDynamicPositionByAxis(array, axis) { return array.filter((v)=>STATIC_POSITIONS.indexOf(v.pos) === -1 && v.box.axis === axis); } function sortByWeight(array, reverse) { return array.sort((a, b)=>{ const v0 = reverse ? b : a; const v1 = reverse ? a : b; return v0.weight === v1.weight ? v0.index - v1.index : v0.weight - v1.weight; }); } function wrapBoxes(boxes) { const layoutBoxes = []; let i, ilen, box, pos, stack, stackWeight; for(i = 0, ilen = (boxes || []).length; i < ilen; ++i){ box = boxes[i]; ({ position: pos , options: { stack , stackWeight =1 } } = box); layoutBoxes.push({ index: i, box, pos, horizontal: box.isHorizontal(), weight: box.weight, stack: stack && pos + stack, stackWeight }); } return layoutBoxes; } function buildStacks(layouts) { const stacks = {}; for (const wrap of layouts){ const { stack , pos , stackWeight } = wrap; if (!stack || !STATIC_POSITIONS.includes(pos)) { continue; } const _stack = stacks[stack] || (stacks[stack] = { count: 0, placed: 0, weight: 0, size: 0 }); _stack.count++; _stack.weight += stackWeight; } return stacks; } function setLayoutDims(layouts, params) { const stacks = buildStacks(layouts); const { vBoxMaxWidth , hBoxMaxHeight } = params; let i, ilen, layout; for(i = 0, ilen = layouts.length; i < ilen; ++i){ layout = layouts[i]; const { fullSize } = layout.box; const stack = stacks[layout.stack]; const factor = stack && layout.stackWeight / stack.weight; if (layout.horizontal) { layout.width = factor ? factor * vBoxMaxWidth : fullSize && params.availableWidth; layout.height = hBoxMaxHeight; } else { layout.width = vBoxMaxWidth; layout.height = factor ? factor * hBoxMaxHeight : fullSize && params.availableHeight; } } return stacks; } function buildLayoutBoxes(boxes) { const layoutBoxes = wrapBoxes(boxes); const fullSize = sortByWeight(layoutBoxes.filter((wrap)=>wrap.box.fullSize), true); const left = sortByWeight(filterByPosition(layoutBoxes, 'left'), true); const right = sortByWeight(filterByPosition(layoutBoxes, 'right')); const top = sortByWeight(filterByPosition(layoutBoxes, 'top'), true); const bottom = sortByWeight(filterByPosition(layoutBoxes, 'bottom')); const centerHorizontal = filterDynamicPositionByAxis(layoutBoxes, 'x'); const centerVertical = filterDynamicPositionByAxis(layoutBoxes, 'y'); return { fullSize, leftAndTop: left.concat(top), rightAndBottom: right.concat(centerVertical).concat(bottom).concat(centerHorizontal), chartArea: filterByPosition(layoutBoxes, 'chartArea'), vertical: left.concat(right).concat(centerVertical), horizontal: top.concat(bottom).concat(centerHorizontal) }; } function getCombinedMax(maxPadding, chartArea, a, b) { return Math.max(maxPadding[a], chartArea[a]) + Math.max(maxPadding[b], chartArea[b]); } function updateMaxPadding(maxPadding, boxPadding) { maxPadding.top = Math.max(maxPadding.top, boxPadding.top); maxPadding.left = Math.max(maxPadding.left, boxPadding.left); maxPadding.bottom = Math.max(maxPadding.bottom, boxPadding.bottom); maxPadding.right = Math.max(maxPadding.right, boxPadding.right); } function updateDims(chartArea, params, layout, stacks) { const { pos , box } = layout; const maxPadding = chartArea.maxPadding; if (!(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(pos)) { if (layout.size) { chartArea[pos] -= layout.size; } const stack = stacks[layout.stack] || { size: 0, count: 1 }; stack.size = Math.max(stack.size, layout.horizontal ? box.height : box.width); layout.size = stack.size / stack.count; chartArea[pos] += layout.size; } if (box.getPadding) { updateMaxPadding(maxPadding, box.getPadding()); } const newWidth = Math.max(0, params.outerWidth - getCombinedMax(maxPadding, chartArea, 'left', 'right')); const newHeight = Math.max(0, params.outerHeight - getCombinedMax(maxPadding, chartArea, 'top', 'bottom')); const widthChanged = newWidth !== chartArea.w; const heightChanged = newHeight !== chartArea.h; chartArea.w = newWidth; chartArea.h = newHeight; return layout.horizontal ? { same: widthChanged, other: heightChanged } : { same: heightChanged, other: widthChanged }; } function handleMaxPadding(chartArea) { const maxPadding = chartArea.maxPadding; function updatePos(pos) { const change = Math.max(maxPadding[pos] - chartArea[pos], 0); chartArea[pos] += change; return change; } chartArea.y += updatePos('top'); chartArea.x += updatePos('left'); updatePos('right'); updatePos('bottom'); } function getMargins(horizontal, chartArea) { const maxPadding = chartArea.maxPadding; function marginForPositions(positions) { const margin = { left: 0, top: 0, right: 0, bottom: 0 }; positions.forEach((pos)=>{ margin[pos] = Math.max(chartArea[pos], maxPadding[pos]); }); return margin; } return horizontal ? marginForPositions([ 'left', 'right' ]) : marginForPositions([ 'top', 'bottom' ]); } function fitBoxes(boxes, chartArea, params, stacks) { const refitBoxes = []; let i, ilen, layout, box, refit, changed; for(i = 0, ilen = boxes.length, refit = 0; i < ilen; ++i){ layout = boxes[i]; box = layout.box; box.update(layout.width || chartArea.w, layout.height || chartArea.h, getMargins(layout.horizontal, chartArea)); const { same , other } = updateDims(chartArea, params, layout, stacks); refit |= same && refitBoxes.length; changed = changed || other; if (!box.fullSize) { refitBoxes.push(layout); } } return refit && fitBoxes(refitBoxes, chartArea, params, stacks) || changed; } function setBoxDims(box, left, top, width, height) { box.top = top; box.left = left; box.right = left + width; box.bottom = top + height; box.width = width; box.height = height; } function placeBoxes(boxes, chartArea, params, stacks) { const userPadding = params.padding; let { x , y } = chartArea; for (const layout of boxes){ const box = layout.box; const stack = stacks[layout.stack] || { count: 1, placed: 0, weight: 1 }; const weight = layout.stackWeight / stack.weight || 1; if (layout.horizontal) { const width = chartArea.w * weight; const height = stack.size || box.height; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.h)(stack.start)) { y = stack.start; } if (box.fullSize) { setBoxDims(box, userPadding.left, y, params.outerWidth - userPadding.right - userPadding.left, height); } else { setBoxDims(box, chartArea.left + stack.placed, y, width, height); } stack.start = y; stack.placed += width; y = box.bottom; } else { const height = chartArea.h * weight; const width = stack.size || box.width; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.h)(stack.start)) { x = stack.start; } if (box.fullSize) { setBoxDims(box, x, userPadding.top, width, params.outerHeight - userPadding.bottom - userPadding.top); } else { setBoxDims(box, x, chartArea.top + stack.placed, width, height); } stack.start = x; stack.placed += height; x = box.right; } } chartArea.x = x; chartArea.y = y; } var layouts = { addBox (chart, item) { if (!chart.boxes) { chart.boxes = []; } item.fullSize = item.fullSize || false; item.position = item.position || 'top'; item.weight = item.weight || 0; item._layers = item._layers || function() { return [ { z: 0, draw (chartArea) { item.draw(chartArea); } } ]; }; chart.boxes.push(item); }, removeBox (chart, layoutItem) { const index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1; if (index !== -1) { chart.boxes.splice(index, 1); } }, configure (chart, item, options) { item.fullSize = options.fullSize; item.position = options.position; item.weight = options.weight; }, update (chart, width, height, minPadding) { if (!chart) { return; } const padding = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.E)(chart.options.layout.padding); const availableWidth = Math.max(width - padding.width, 0); const availableHeight = Math.max(height - padding.height, 0); const boxes = buildLayoutBoxes(chart.boxes); const verticalBoxes = boxes.vertical; const horizontalBoxes = boxes.horizontal; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(chart.boxes, (box)=>{ if (typeof box.beforeLayout === 'function') { box.beforeLayout(); } }); const visibleVerticalBoxCount = verticalBoxes.reduce((total, wrap)=>wrap.box.options && wrap.box.options.display === false ? total : total + 1, 0) || 1; const params = Object.freeze({ outerWidth: width, outerHeight: height, padding, availableWidth, availableHeight, vBoxMaxWidth: availableWidth / 2 / visibleVerticalBoxCount, hBoxMaxHeight: availableHeight / 2 }); const maxPadding = Object.assign({}, padding); updateMaxPadding(maxPadding, (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.E)(minPadding)); const chartArea = Object.assign({ maxPadding, w: availableWidth, h: availableHeight, x: padding.left, y: padding.top }, padding); const stacks = setLayoutDims(verticalBoxes.concat(horizontalBoxes), params); fitBoxes(boxes.fullSize, chartArea, params, stacks); fitBoxes(verticalBoxes, chartArea, params, stacks); if (fitBoxes(horizontalBoxes, chartArea, params, stacks)) { fitBoxes(verticalBoxes, chartArea, params, stacks); } handleMaxPadding(chartArea); placeBoxes(boxes.leftAndTop, chartArea, params, stacks); chartArea.x += chartArea.w; chartArea.y += chartArea.h; placeBoxes(boxes.rightAndBottom, chartArea, params, stacks); chart.chartArea = { left: chartArea.left, top: chartArea.top, right: chartArea.left + chartArea.w, bottom: chartArea.top + chartArea.h, height: chartArea.h, width: chartArea.w }; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(boxes.chartArea, (layout)=>{ const box = layout.box; Object.assign(box, chart.chartArea); box.update(chartArea.w, chartArea.h, { left: 0, top: 0, right: 0, bottom: 0 }); }); } }; class BasePlatform { acquireContext(canvas, aspectRatio) {} releaseContext(context) { return false; } addEventListener(chart, type, listener) {} removeEventListener(chart, type, listener) {} getDevicePixelRatio() { return 1; } getMaximumSize(element, width, height, aspectRatio) { width = Math.max(0, width || element.width); height = height || element.height; return { width, height: Math.max(0, aspectRatio ? Math.floor(width / aspectRatio) : height) }; } isAttached(canvas) { return true; } updateConfig(config) { } } class BasicPlatform extends BasePlatform { acquireContext(item) { return item && item.getContext && item.getContext('2d') || null; } updateConfig(config) { config.options.animation = false; } } const EXPANDO_KEY = '$chartjs'; const EVENT_TYPES = { touchstart: 'mousedown', touchmove: 'mousemove', touchend: 'mouseup', pointerenter: 'mouseenter', pointerdown: 'mousedown', pointermove: 'mousemove', pointerup: 'mouseup', pointerleave: 'mouseout', pointerout: 'mouseout' }; const isNullOrEmpty = (value)=>value === null || value === ''; function initCanvas(canvas, aspectRatio) { const style = canvas.style; const renderHeight = canvas.getAttribute('height'); const renderWidth = canvas.getAttribute('width'); canvas[EXPANDO_KEY] = { initial: { height: renderHeight, width: renderWidth, style: { display: style.display, height: style.height, width: style.width } } }; style.display = style.display || 'block'; style.boxSizing = style.boxSizing || 'border-box'; if (isNullOrEmpty(renderWidth)) { const displayWidth = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.J)(canvas, 'width'); if (displayWidth !== undefined) { canvas.width = displayWidth; } } if (isNullOrEmpty(renderHeight)) { if (canvas.style.height === '') { canvas.height = canvas.width / (aspectRatio || 2); } else { const displayHeight = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.J)(canvas, 'height'); if (displayHeight !== undefined) { canvas.height = displayHeight; } } } return canvas; } const eventListenerOptions = _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.K ? { passive: true } : false; function addListener(node, type, listener) { node.addEventListener(type, listener, eventListenerOptions); } function removeListener(chart, type, listener) { chart.canvas.removeEventListener(type, listener, eventListenerOptions); } function fromNativeEvent(event, chart) { const type = EVENT_TYPES[event.type] || event.type; const { x , y } = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.z)(event, chart); return { type, chart, native: event, x: x !== undefined ? x : null, y: y !== undefined ? y : null }; } function nodeListContains(nodeList, canvas) { for (const node of nodeList){ if (node === canvas || node.contains(canvas)) { return true; } } } function createAttachObserver(chart, type, listener) { const canvas = chart.canvas; const observer = new MutationObserver((entries)=>{ let trigger = false; for (const entry of entries){ trigger = trigger || nodeListContains(entry.addedNodes, canvas); trigger = trigger && !nodeListContains(entry.removedNodes, canvas); } if (trigger) { listener(); } }); observer.observe(document, { childList: true, subtree: true }); return observer; } function createDetachObserver(chart, type, listener) { const canvas = chart.canvas; const observer = new MutationObserver((entries)=>{ let trigger = false; for (const entry of entries){ trigger = trigger || nodeListContains(entry.removedNodes, canvas); trigger = trigger && !nodeListContains(entry.addedNodes, canvas); } if (trigger) { listener(); } }); observer.observe(document, { childList: true, subtree: true }); return observer; } const drpListeningCharts = new Map(); let oldDevicePixelRatio = 0; function onWindowResize() { const dpr = window.devicePixelRatio; if (dpr === oldDevicePixelRatio) { return; } oldDevicePixelRatio = dpr; drpListeningCharts.forEach((resize, chart)=>{ if (chart.currentDevicePixelRatio !== dpr) { resize(); } }); } function listenDevicePixelRatioChanges(chart, resize) { if (!drpListeningCharts.size) { window.addEventListener('resize', onWindowResize); } drpListeningCharts.set(chart, resize); } function unlistenDevicePixelRatioChanges(chart) { drpListeningCharts.delete(chart); if (!drpListeningCharts.size) { window.removeEventListener('resize', onWindowResize); } } function createResizeObserver(chart, type, listener) { const canvas = chart.canvas; const container = canvas && (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.I)(canvas); if (!container) { return; } const resize = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.L)((width, height)=>{ const w = container.clientWidth; listener(width, height); if (w < container.clientWidth) { listener(); } }, window); const observer = new ResizeObserver((entries)=>{ const entry = entries[0]; const width = entry.contentRect.width; const height = entry.contentRect.height; if (width === 0 && height === 0) { return; } resize(width, height); }); observer.observe(container); listenDevicePixelRatioChanges(chart, resize); return observer; } function releaseObserver(chart, type, observer) { if (observer) { observer.disconnect(); } if (type === 'resize') { unlistenDevicePixelRatioChanges(chart); } } function createProxyAndListen(chart, type, listener) { const canvas = chart.canvas; const proxy = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.L)((event)=>{ if (chart.ctx !== null) { listener(fromNativeEvent(event, chart)); } }, chart); addListener(canvas, type, proxy); return proxy; } class DomPlatform extends BasePlatform { acquireContext(canvas, aspectRatio) { const context = canvas && canvas.getContext && canvas.getContext('2d'); if (context && context.canvas === canvas) { initCanvas(canvas, aspectRatio); return context; } return null; } releaseContext(context) { const canvas = context.canvas; if (!canvas[EXPANDO_KEY]) { return false; } const initial = canvas[EXPANDO_KEY].initial; [ 'height', 'width' ].forEach((prop)=>{ const value = initial[prop]; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(value)) { canvas.removeAttribute(prop); } else { canvas.setAttribute(prop, value); } }); const style = initial.style || {}; Object.keys(style).forEach((key)=>{ canvas.style[key] = style[key]; }); canvas.width = canvas.width; delete canvas[EXPANDO_KEY]; return true; } addEventListener(chart, type, listener) { this.removeEventListener(chart, type); const proxies = chart.$proxies || (chart.$proxies = {}); const handlers = { attach: createAttachObserver, detach: createDetachObserver, resize: createResizeObserver }; const handler = handlers[type] || createProxyAndListen; proxies[type] = handler(chart, type, listener); } removeEventListener(chart, type) { const proxies = chart.$proxies || (chart.$proxies = {}); const proxy = proxies[type]; if (!proxy) { return; } const handlers = { attach: releaseObserver, detach: releaseObserver, resize: releaseObserver }; const handler = handlers[type] || removeListener; handler(chart, type, proxy); proxies[type] = undefined; } getDevicePixelRatio() { return window.devicePixelRatio; } getMaximumSize(canvas, width, height, aspectRatio) { return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.G)(canvas, width, height, aspectRatio); } isAttached(canvas) { const container = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.I)(canvas); return !!(container && container.isConnected); } } function _detectPlatform(canvas) { if (!(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.M)() || typeof OffscreenCanvas !== 'undefined' && canvas instanceof OffscreenCanvas) { return BasicPlatform; } return DomPlatform; } class Element { static defaults = {}; static defaultRoutes = undefined; x; y; active = false; options; $animations; tooltipPosition(useFinalPosition) { const { x , y } = this.getProps([ 'x', 'y' ], useFinalPosition); return { x, y }; } hasValue() { return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.x)(this.x) && (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.x)(this.y); } getProps(props, final) { const anims = this.$animations; if (!final || !anims) { // let's not create an object, if not needed return this; } const ret = {}; props.forEach((prop)=>{ ret[prop] = anims[prop] && anims[prop].active() ? anims[prop]._to : this[prop]; }); return ret; } } function autoSkip(scale, ticks) { const tickOpts = scale.options.ticks; const determinedMaxTicks = determineMaxTicks(scale); const ticksLimit = Math.min(tickOpts.maxTicksLimit || determinedMaxTicks, determinedMaxTicks); const majorIndices = tickOpts.major.enabled ? getMajorIndices(ticks) : []; const numMajorIndices = majorIndices.length; const first = majorIndices[0]; const last = majorIndices[numMajorIndices - 1]; const newTicks = []; if (numMajorIndices > ticksLimit) { skipMajors(ticks, newTicks, majorIndices, numMajorIndices / ticksLimit); return newTicks; } const spacing = calculateSpacing(majorIndices, ticks, ticksLimit); if (numMajorIndices > 0) { let i, ilen; const avgMajorSpacing = numMajorIndices > 1 ? Math.round((last - first) / (numMajorIndices - 1)) : null; skip(ticks, newTicks, spacing, (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(avgMajorSpacing) ? 0 : first - avgMajorSpacing, first); for(i = 0, ilen = numMajorIndices - 1; i < ilen; i++){ skip(ticks, newTicks, spacing, majorIndices[i], majorIndices[i + 1]); } skip(ticks, newTicks, spacing, last, (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(avgMajorSpacing) ? ticks.length : last + avgMajorSpacing); return newTicks; } skip(ticks, newTicks, spacing); return newTicks; } function determineMaxTicks(scale) { const offset = scale.options.offset; const tickLength = scale._tickSize(); const maxScale = scale._length / tickLength + (offset ? 0 : 1); const maxChart = scale._maxLength / tickLength; return Math.floor(Math.min(maxScale, maxChart)); } function calculateSpacing(majorIndices, ticks, ticksLimit) { const evenMajorSpacing = getEvenSpacing(majorIndices); const spacing = ticks.length / ticksLimit; if (!evenMajorSpacing) { return Math.max(spacing, 1); } const factors = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.N)(evenMajorSpacing); for(let i = 0, ilen = factors.length - 1; i < ilen; i++){ const factor = factors[i]; if (factor > spacing) { return factor; } } return Math.max(spacing, 1); } function getMajorIndices(ticks) { const result = []; let i, ilen; for(i = 0, ilen = ticks.length; i < ilen; i++){ if (ticks[i].major) { result.push(i); } } return result; } function skipMajors(ticks, newTicks, majorIndices, spacing) { let count = 0; let next = majorIndices[0]; let i; spacing = Math.ceil(spacing); for(i = 0; i < ticks.length; i++){ if (i === next) { newTicks.push(ticks[i]); count++; next = majorIndices[count * spacing]; } } } function skip(ticks, newTicks, spacing, majorStart, majorEnd) { const start = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(majorStart, 0); const end = Math.min((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(majorEnd, ticks.length), ticks.length); let count = 0; let length, i, next; spacing = Math.ceil(spacing); if (majorEnd) { length = majorEnd - majorStart; spacing = length / Math.floor(length / spacing); } next = start; while(next < 0){ count++; next = Math.round(start + count * spacing); } for(i = Math.max(start, 0); i < end; i++){ if (i === next) { newTicks.push(ticks[i]); count++; next = Math.round(start + count * spacing); } } } function getEvenSpacing(arr) { const len = arr.length; let i, diff; if (len < 2) { return false; } for(diff = arr[0], i = 1; i < len; ++i){ if (arr[i] - arr[i - 1] !== diff) { return false; } } return diff; } const reverseAlign = (align)=>align === 'left' ? 'right' : align === 'right' ? 'left' : align; const offsetFromEdge = (scale, edge, offset)=>edge === 'top' || edge === 'left' ? scale[edge] + offset : scale[edge] - offset; const getTicksLimit = (ticksLength, maxTicksLimit)=>Math.min(maxTicksLimit || ticksLength, ticksLength); function sample(arr, numItems) { const result = []; const increment = arr.length / numItems; const len = arr.length; let i = 0; for(; i < len; i += increment){ result.push(arr[Math.floor(i)]); } return result; } function getPixelForGridLine(scale, index, offsetGridLines) { const length = scale.ticks.length; const validIndex = Math.min(index, length - 1); const start = scale._startPixel; const end = scale._endPixel; const epsilon = 1e-6; let lineValue = scale.getPixelForTick(validIndex); let offset; if (offsetGridLines) { if (length === 1) { offset = Math.max(lineValue - start, end - lineValue); } else if (index === 0) { offset = (scale.getPixelForTick(1) - lineValue) / 2; } else { offset = (lineValue - scale.getPixelForTick(validIndex - 1)) / 2; } lineValue += validIndex < index ? offset : -offset; if (lineValue < start - epsilon || lineValue > end + epsilon) { return; } } return lineValue; } function garbageCollect(caches, length) { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(caches, (cache)=>{ const gc = cache.gc; const gcLen = gc.length / 2; let i; if (gcLen > length) { for(i = 0; i < gcLen; ++i){ delete cache.data[gc[i]]; } gc.splice(0, gcLen); } }); } function getTickMarkLength(options) { return options.drawTicks ? options.tickLength : 0; } function getTitleHeight(options, fallback) { if (!options.display) { return 0; } const font = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(options.font, fallback); const padding = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.E)(options.padding); const lines = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.b)(options.text) ? options.text.length : 1; return lines * font.lineHeight + padding.height; } function createScaleContext(parent, scale) { return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.j)(parent, { scale, type: 'scale' }); } function createTickContext(parent, index, tick) { return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.j)(parent, { tick, index, type: 'tick' }); } function titleAlign(align, position, reverse) { let ret = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a1)(align); if (reverse && position !== 'right' || !reverse && position === 'right') { ret = reverseAlign(ret); } return ret; } function titleArgs(scale, offset, position, align) { const { top , left , bottom , right , chart } = scale; const { chartArea , scales } = chart; let rotation = 0; let maxWidth, titleX, titleY; const height = bottom - top; const width = right - left; if (scale.isHorizontal()) { titleX = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a2)(align, left, right); if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(position)) { const positionAxisID = Object.keys(position)[0]; const value = position[positionAxisID]; titleY = scales[positionAxisID].getPixelForValue(value) + height - offset; } else if (position === 'center') { titleY = (chartArea.bottom + chartArea.top) / 2 + height - offset; } else { titleY = offsetFromEdge(scale, position, offset); } maxWidth = right - left; } else { if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(position)) { const positionAxisID = Object.keys(position)[0]; const value = position[positionAxisID]; titleX = scales[positionAxisID].getPixelForValue(value) - width + offset; } else if (position === 'center') { titleX = (chartArea.left + chartArea.right) / 2 - width + offset; } else { titleX = offsetFromEdge(scale, position, offset); } titleY = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a2)(align, bottom, top); rotation = position === 'left' ? -_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.H : _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.H; } return { titleX, titleY, maxWidth, rotation }; } class Scale extends Element { constructor(cfg){ super(); this.id = cfg.id; this.type = cfg.type; this.options = undefined; this.ctx = cfg.ctx; this.chart = cfg.chart; this.top = undefined; this.bottom = undefined; this.left = undefined; this.right = undefined; this.width = undefined; this.height = undefined; this._margins = { left: 0, right: 0, top: 0, bottom: 0 }; this.maxWidth = undefined; this.maxHeight = undefined; this.paddingTop = undefined; this.paddingBottom = undefined; this.paddingLeft = undefined; this.paddingRight = undefined; this.axis = undefined; this.labelRotation = undefined; this.min = undefined; this.max = undefined; this._range = undefined; this.ticks = []; this._gridLineItems = null; this._labelItems = null; this._labelSizes = null; this._length = 0; this._maxLength = 0; this._longestTextCache = {}; this._startPixel = undefined; this._endPixel = undefined; this._reversePixels = false; this._userMax = undefined; this._userMin = undefined; this._suggestedMax = undefined; this._suggestedMin = undefined; this._ticksLength = 0; this._borderValue = 0; this._cache = {}; this._dataLimitsCached = false; this.$context = undefined; } init(options) { this.options = options.setContext(this.getContext()); this.axis = options.axis; this._userMin = this.parse(options.min); this._userMax = this.parse(options.max); this._suggestedMin = this.parse(options.suggestedMin); this._suggestedMax = this.parse(options.suggestedMax); } parse(raw, index) { return raw; } getUserBounds() { let { _userMin , _userMax , _suggestedMin , _suggestedMax } = this; _userMin = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.O)(_userMin, Number.POSITIVE_INFINITY); _userMax = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.O)(_userMax, Number.NEGATIVE_INFINITY); _suggestedMin = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.O)(_suggestedMin, Number.POSITIVE_INFINITY); _suggestedMax = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.O)(_suggestedMax, Number.NEGATIVE_INFINITY); return { min: (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.O)(_userMin, _suggestedMin), max: (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.O)(_userMax, _suggestedMax), minDefined: (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(_userMin), maxDefined: (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(_userMax) }; } getMinMax(canStack) { let { min , max , minDefined , maxDefined } = this.getUserBounds(); let range; if (minDefined && maxDefined) { return { min, max }; } const metas = this.getMatchingVisibleMetas(); for(let i = 0, ilen = metas.length; i < ilen; ++i){ range = metas[i].controller.getMinMax(this, canStack); if (!minDefined) { min = Math.min(min, range.min); } if (!maxDefined) { max = Math.max(max, range.max); } } min = maxDefined && min > max ? max : min; max = minDefined && min > max ? min : max; return { min: (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.O)(min, (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.O)(max, min)), max: (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.O)(max, (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.O)(min, max)) }; } getPadding() { return { left: this.paddingLeft || 0, top: this.paddingTop || 0, right: this.paddingRight || 0, bottom: this.paddingBottom || 0 }; } getTicks() { return this.ticks; } getLabels() { const data = this.chart.data; return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels || []; } getLabelItems(chartArea = this.chart.chartArea) { const items = this._labelItems || (this._labelItems = this._computeLabelItems(chartArea)); return items; } beforeLayout() { this._cache = {}; this._dataLimitsCached = false; } beforeUpdate() { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(this.options.beforeUpdate, [ this ]); } update(maxWidth, maxHeight, margins) { const { beginAtZero , grace , ticks: tickOpts } = this.options; const sampleSize = tickOpts.sampleSize; this.beforeUpdate(); this.maxWidth = maxWidth; this.maxHeight = maxHeight; this._margins = margins = Object.assign({ left: 0, right: 0, top: 0, bottom: 0 }, margins); this.ticks = null; this._labelSizes = null; this._gridLineItems = null; this._labelItems = null; this.beforeSetDimensions(); this.setDimensions(); this.afterSetDimensions(); this._maxLength = this.isHorizontal() ? this.width + margins.left + margins.right : this.height + margins.top + margins.bottom; if (!this._dataLimitsCached) { this.beforeDataLimits(); this.determineDataLimits(); this.afterDataLimits(); this._range = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.R)(this, grace, beginAtZero); this._dataLimitsCached = true; } this.beforeBuildTicks(); this.ticks = this.buildTicks() || []; this.afterBuildTicks(); const samplingEnabled = sampleSize < this.ticks.length; this._convertTicksToLabels(samplingEnabled ? sample(this.ticks, sampleSize) : this.ticks); this.configure(); this.beforeCalculateLabelRotation(); this.calculateLabelRotation(); this.afterCalculateLabelRotation(); if (tickOpts.display && (tickOpts.autoSkip || tickOpts.source === 'auto')) { this.ticks = autoSkip(this, this.ticks); this._labelSizes = null; this.afterAutoSkip(); } if (samplingEnabled) { this._convertTicksToLabels(this.ticks); } this.beforeFit(); this.fit(); this.afterFit(); this.afterUpdate(); } configure() { let reversePixels = this.options.reverse; let startPixel, endPixel; if (this.isHorizontal()) { startPixel = this.left; endPixel = this.right; } else { startPixel = this.top; endPixel = this.bottom; reversePixels = !reversePixels; } this._startPixel = startPixel; this._endPixel = endPixel; this._reversePixels = reversePixels; this._length = endPixel - startPixel; this._alignToPixels = this.options.alignToPixels; } afterUpdate() { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(this.options.afterUpdate, [ this ]); } beforeSetDimensions() { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(this.options.beforeSetDimensions, [ this ]); } setDimensions() { if (this.isHorizontal()) { this.width = this.maxWidth; this.left = 0; this.right = this.width; } else { this.height = this.maxHeight; this.top = 0; this.bottom = this.height; } this.paddingLeft = 0; this.paddingTop = 0; this.paddingRight = 0; this.paddingBottom = 0; } afterSetDimensions() { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(this.options.afterSetDimensions, [ this ]); } _callHooks(name) { this.chart.notifyPlugins(name, this.getContext()); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(this.options[name], [ this ]); } beforeDataLimits() { this._callHooks('beforeDataLimits'); } determineDataLimits() {} afterDataLimits() { this._callHooks('afterDataLimits'); } beforeBuildTicks() { this._callHooks('beforeBuildTicks'); } buildTicks() { return []; } afterBuildTicks() { this._callHooks('afterBuildTicks'); } beforeTickToLabelConversion() { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(this.options.beforeTickToLabelConversion, [ this ]); } generateTickLabels(ticks) { const tickOpts = this.options.ticks; let i, ilen, tick; for(i = 0, ilen = ticks.length; i < ilen; i++){ tick = ticks[i]; tick.label = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(tickOpts.callback, [ tick.value, i, ticks ], this); } } afterTickToLabelConversion() { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(this.options.afterTickToLabelConversion, [ this ]); } beforeCalculateLabelRotation() { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(this.options.beforeCalculateLabelRotation, [ this ]); } calculateLabelRotation() { const options = this.options; const tickOpts = options.ticks; const numTicks = getTicksLimit(this.ticks.length, options.ticks.maxTicksLimit); const minRotation = tickOpts.minRotation || 0; const maxRotation = tickOpts.maxRotation; let labelRotation = minRotation; let tickWidth, maxHeight, maxLabelDiagonal; if (!this._isVisible() || !tickOpts.display || minRotation >= maxRotation || numTicks <= 1 || !this.isHorizontal()) { this.labelRotation = minRotation; return; } const labelSizes = this._getLabelSizes(); const maxLabelWidth = labelSizes.widest.width; const maxLabelHeight = labelSizes.highest.height; const maxWidth = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.S)(this.chart.width - maxLabelWidth, 0, this.maxWidth); tickWidth = options.offset ? this.maxWidth / numTicks : maxWidth / (numTicks - 1); if (maxLabelWidth + 6 > tickWidth) { tickWidth = maxWidth / (numTicks - (options.offset ? 0.5 : 1)); maxHeight = this.maxHeight - getTickMarkLength(options.grid) - tickOpts.padding - getTitleHeight(options.title, this.chart.options.font); maxLabelDiagonal = Math.sqrt(maxLabelWidth * maxLabelWidth + maxLabelHeight * maxLabelHeight); labelRotation = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.U)(Math.min(Math.asin((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.S)((labelSizes.highest.height + 6) / tickWidth, -1, 1)), Math.asin((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.S)(maxHeight / maxLabelDiagonal, -1, 1)) - Math.asin((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.S)(maxLabelHeight / maxLabelDiagonal, -1, 1)))); labelRotation = Math.max(minRotation, Math.min(maxRotation, labelRotation)); } this.labelRotation = labelRotation; } afterCalculateLabelRotation() { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(this.options.afterCalculateLabelRotation, [ this ]); } afterAutoSkip() {} beforeFit() { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(this.options.beforeFit, [ this ]); } fit() { const minSize = { width: 0, height: 0 }; const { chart , options: { ticks: tickOpts , title: titleOpts , grid: gridOpts } } = this; const display = this._isVisible(); const isHorizontal = this.isHorizontal(); if (display) { const titleHeight = getTitleHeight(titleOpts, chart.options.font); if (isHorizontal) { minSize.width = this.maxWidth; minSize.height = getTickMarkLength(gridOpts) + titleHeight; } else { minSize.height = this.maxHeight; minSize.width = getTickMarkLength(gridOpts) + titleHeight; } if (tickOpts.display && this.ticks.length) { const { first , last , widest , highest } = this._getLabelSizes(); const tickPadding = tickOpts.padding * 2; const angleRadians = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.t)(this.labelRotation); const cos = Math.cos(angleRadians); const sin = Math.sin(angleRadians); if (isHorizontal) { const labelHeight = tickOpts.mirror ? 0 : sin * widest.width + cos * highest.height; minSize.height = Math.min(this.maxHeight, minSize.height + labelHeight + tickPadding); } else { const labelWidth = tickOpts.mirror ? 0 : cos * widest.width + sin * highest.height; minSize.width = Math.min(this.maxWidth, minSize.width + labelWidth + tickPadding); } this._calculatePadding(first, last, sin, cos); } } this._handleMargins(); if (isHorizontal) { this.width = this._length = chart.width - this._margins.left - this._margins.right; this.height = minSize.height; } else { this.width = minSize.width; this.height = this._length = chart.height - this._margins.top - this._margins.bottom; } } _calculatePadding(first, last, sin, cos) { const { ticks: { align , padding } , position } = this.options; const isRotated = this.labelRotation !== 0; const labelsBelowTicks = position !== 'top' && this.axis === 'x'; if (this.isHorizontal()) { const offsetLeft = this.getPixelForTick(0) - this.left; const offsetRight = this.right - this.getPixelForTick(this.ticks.length - 1); let paddingLeft = 0; let paddingRight = 0; if (isRotated) { if (labelsBelowTicks) { paddingLeft = cos * first.width; paddingRight = sin * last.height; } else { paddingLeft = sin * first.height; paddingRight = cos * last.width; } } else if (align === 'start') { paddingRight = last.width; } else if (align === 'end') { paddingLeft = first.width; } else if (align !== 'inner') { paddingLeft = first.width / 2; paddingRight = last.width / 2; } this.paddingLeft = Math.max((paddingLeft - offsetLeft + padding) * this.width / (this.width - offsetLeft), 0); this.paddingRight = Math.max((paddingRight - offsetRight + padding) * this.width / (this.width - offsetRight), 0); } else { let paddingTop = last.height / 2; let paddingBottom = first.height / 2; if (align === 'start') { paddingTop = 0; paddingBottom = first.height; } else if (align === 'end') { paddingTop = last.height; paddingBottom = 0; } this.paddingTop = paddingTop + padding; this.paddingBottom = paddingBottom + padding; } } _handleMargins() { if (this._margins) { this._margins.left = Math.max(this.paddingLeft, this._margins.left); this._margins.top = Math.max(this.paddingTop, this._margins.top); this._margins.right = Math.max(this.paddingRight, this._margins.right); this._margins.bottom = Math.max(this.paddingBottom, this._margins.bottom); } } afterFit() { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(this.options.afterFit, [ this ]); } isHorizontal() { const { axis , position } = this.options; return position === 'top' || position === 'bottom' || axis === 'x'; } isFullSize() { return this.options.fullSize; } _convertTicksToLabels(ticks) { this.beforeTickToLabelConversion(); this.generateTickLabels(ticks); let i, ilen; for(i = 0, ilen = ticks.length; i < ilen; i++){ if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(ticks[i].label)) { ticks.splice(i, 1); ilen--; i--; } } this.afterTickToLabelConversion(); } _getLabelSizes() { let labelSizes = this._labelSizes; if (!labelSizes) { const sampleSize = this.options.ticks.sampleSize; let ticks = this.ticks; if (sampleSize < ticks.length) { ticks = sample(ticks, sampleSize); } this._labelSizes = labelSizes = this._computeLabelSizes(ticks, ticks.length, this.options.ticks.maxTicksLimit); } return labelSizes; } _computeLabelSizes(ticks, length, maxTicksLimit) { const { ctx , _longestTextCache: caches } = this; const widths = []; const heights = []; const increment = Math.floor(length / getTicksLimit(length, maxTicksLimit)); let widestLabelSize = 0; let highestLabelSize = 0; let i, j, jlen, label, tickFont, fontString, cache, lineHeight, width, height, nestedLabel; for(i = 0; i < length; i += increment){ label = ticks[i].label; tickFont = this._resolveTickFontOptions(i); ctx.font = fontString = tickFont.string; cache = caches[fontString] = caches[fontString] || { data: {}, gc: [] }; lineHeight = tickFont.lineHeight; width = height = 0; if (!(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(label) && !(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.b)(label)) { width = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.V)(ctx, cache.data, cache.gc, width, label); height = lineHeight; } else if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.b)(label)) { for(j = 0, jlen = label.length; j < jlen; ++j){ nestedLabel = label[j]; if (!(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(nestedLabel) && !(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.b)(nestedLabel)) { width = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.V)(ctx, cache.data, cache.gc, width, nestedLabel); height += lineHeight; } } } widths.push(width); heights.push(height); widestLabelSize = Math.max(width, widestLabelSize); highestLabelSize = Math.max(height, highestLabelSize); } garbageCollect(caches, length); const widest = widths.indexOf(widestLabelSize); const highest = heights.indexOf(highestLabelSize); const valueAt = (idx)=>({ width: widths[idx] || 0, height: heights[idx] || 0 }); return { first: valueAt(0), last: valueAt(length - 1), widest: valueAt(widest), highest: valueAt(highest), widths, heights }; } getLabelForValue(value) { return value; } getPixelForValue(value, index) { return NaN; } getValueForPixel(pixel) {} getPixelForTick(index) { const ticks = this.ticks; if (index < 0 || index > ticks.length - 1) { return null; } return this.getPixelForValue(ticks[index].value); } getPixelForDecimal(decimal) { if (this._reversePixels) { decimal = 1 - decimal; } const pixel = this._startPixel + decimal * this._length; return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.W)(this._alignToPixels ? (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.X)(this.chart, pixel, 0) : pixel); } getDecimalForPixel(pixel) { const decimal = (pixel - this._startPixel) / this._length; return this._reversePixels ? 1 - decimal : decimal; } getBasePixel() { return this.getPixelForValue(this.getBaseValue()); } getBaseValue() { const { min , max } = this; return min < 0 && max < 0 ? max : min > 0 && max > 0 ? min : 0; } getContext(index) { const ticks = this.ticks || []; if (index >= 0 && index < ticks.length) { const tick = ticks[index]; return tick.$context || (tick.$context = createTickContext(this.getContext(), index, tick)); } return this.$context || (this.$context = createScaleContext(this.chart.getContext(), this)); } _tickSize() { const optionTicks = this.options.ticks; const rot = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.t)(this.labelRotation); const cos = Math.abs(Math.cos(rot)); const sin = Math.abs(Math.sin(rot)); const labelSizes = this._getLabelSizes(); const padding = optionTicks.autoSkipPadding || 0; const w = labelSizes ? labelSizes.widest.width + padding : 0; const h = labelSizes ? labelSizes.highest.height + padding : 0; return this.isHorizontal() ? h * cos > w * sin ? w / cos : h / sin : h * sin < w * cos ? h / cos : w / sin; } _isVisible() { const display = this.options.display; if (display !== 'auto') { return !!display; } return this.getMatchingVisibleMetas().length > 0; } _computeGridLineItems(chartArea) { const axis = this.axis; const chart = this.chart; const options = this.options; const { grid , position , border } = options; const offset = grid.offset; const isHorizontal = this.isHorizontal(); const ticks = this.ticks; const ticksLength = ticks.length + (offset ? 1 : 0); const tl = getTickMarkLength(grid); const items = []; const borderOpts = border.setContext(this.getContext()); const axisWidth = borderOpts.display ? borderOpts.width : 0; const axisHalfWidth = axisWidth / 2; const alignBorderValue = function(pixel) { return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.X)(chart, pixel, axisWidth); }; let borderValue, i, lineValue, alignedLineValue; let tx1, ty1, tx2, ty2, x1, y1, x2, y2; if (position === 'top') { borderValue = alignBorderValue(this.bottom); ty1 = this.bottom - tl; ty2 = borderValue - axisHalfWidth; y1 = alignBorderValue(chartArea.top) + axisHalfWidth; y2 = chartArea.bottom; } else if (position === 'bottom') { borderValue = alignBorderValue(this.top); y1 = chartArea.top; y2 = alignBorderValue(chartArea.bottom) - axisHalfWidth; ty1 = borderValue + axisHalfWidth; ty2 = this.top + tl; } else if (position === 'left') { borderValue = alignBorderValue(this.right); tx1 = this.right - tl; tx2 = borderValue - axisHalfWidth; x1 = alignBorderValue(chartArea.left) + axisHalfWidth; x2 = chartArea.right; } else if (position === 'right') { borderValue = alignBorderValue(this.left); x1 = chartArea.left; x2 = alignBorderValue(chartArea.right) - axisHalfWidth; tx1 = borderValue + axisHalfWidth; tx2 = this.left + tl; } else if (axis === 'x') { if (position === 'center') { borderValue = alignBorderValue((chartArea.top + chartArea.bottom) / 2 + 0.5); } else if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(position)) { const positionAxisID = Object.keys(position)[0]; const value = position[positionAxisID]; borderValue = alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value)); } y1 = chartArea.top; y2 = chartArea.bottom; ty1 = borderValue + axisHalfWidth; ty2 = ty1 + tl; } else if (axis === 'y') { if (position === 'center') { borderValue = alignBorderValue((chartArea.left + chartArea.right) / 2); } else if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(position)) { const positionAxisID = Object.keys(position)[0]; const value = position[positionAxisID]; borderValue = alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value)); } tx1 = borderValue - axisHalfWidth; tx2 = tx1 - tl; x1 = chartArea.left; x2 = chartArea.right; } const limit = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(options.ticks.maxTicksLimit, ticksLength); const step = Math.max(1, Math.ceil(ticksLength / limit)); for(i = 0; i < ticksLength; i += step){ const context = this.getContext(i); const optsAtIndex = grid.setContext(context); const optsAtIndexBorder = border.setContext(context); const lineWidth = optsAtIndex.lineWidth; const lineColor = optsAtIndex.color; const borderDash = optsAtIndexBorder.dash || []; const borderDashOffset = optsAtIndexBorder.dashOffset; const tickWidth = optsAtIndex.tickWidth; const tickColor = optsAtIndex.tickColor; const tickBorderDash = optsAtIndex.tickBorderDash || []; const tickBorderDashOffset = optsAtIndex.tickBorderDashOffset; lineValue = getPixelForGridLine(this, i, offset); if (lineValue === undefined) { continue; } alignedLineValue = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.X)(chart, lineValue, lineWidth); if (isHorizontal) { tx1 = tx2 = x1 = x2 = alignedLineValue; } else { ty1 = ty2 = y1 = y2 = alignedLineValue; } items.push({ tx1, ty1, tx2, ty2, x1, y1, x2, y2, width: lineWidth, color: lineColor, borderDash, borderDashOffset, tickWidth, tickColor, tickBorderDash, tickBorderDashOffset }); } this._ticksLength = ticksLength; this._borderValue = borderValue; return items; } _computeLabelItems(chartArea) { const axis = this.axis; const options = this.options; const { position , ticks: optionTicks } = options; const isHorizontal = this.isHorizontal(); const ticks = this.ticks; const { align , crossAlign , padding , mirror } = optionTicks; const tl = getTickMarkLength(options.grid); const tickAndPadding = tl + padding; const hTickAndPadding = mirror ? -padding : tickAndPadding; const rotation = -(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.t)(this.labelRotation); const items = []; let i, ilen, tick, label, x, y, textAlign, pixel, font, lineHeight, lineCount, textOffset; let textBaseline = 'middle'; if (position === 'top') { y = this.bottom - hTickAndPadding; textAlign = this._getXAxisLabelAlignment(); } else if (position === 'bottom') { y = this.top + hTickAndPadding; textAlign = this._getXAxisLabelAlignment(); } else if (position === 'left') { const ret = this._getYAxisLabelAlignment(tl); textAlign = ret.textAlign; x = ret.x; } else if (position === 'right') { const ret = this._getYAxisLabelAlignment(tl); textAlign = ret.textAlign; x = ret.x; } else if (axis === 'x') { if (position === 'center') { y = (chartArea.top + chartArea.bottom) / 2 + tickAndPadding; } else if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(position)) { const positionAxisID = Object.keys(position)[0]; const value = position[positionAxisID]; y = this.chart.scales[positionAxisID].getPixelForValue(value) + tickAndPadding; } textAlign = this._getXAxisLabelAlignment(); } else if (axis === 'y') { if (position === 'center') { x = (chartArea.left + chartArea.right) / 2 - tickAndPadding; } else if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(position)) { const positionAxisID = Object.keys(position)[0]; const value = position[positionAxisID]; x = this.chart.scales[positionAxisID].getPixelForValue(value); } textAlign = this._getYAxisLabelAlignment(tl).textAlign; } if (axis === 'y') { if (align === 'start') { textBaseline = 'top'; } else if (align === 'end') { textBaseline = 'bottom'; } } const labelSizes = this._getLabelSizes(); for(i = 0, ilen = ticks.length; i < ilen; ++i){ tick = ticks[i]; label = tick.label; const optsAtIndex = optionTicks.setContext(this.getContext(i)); pixel = this.getPixelForTick(i) + optionTicks.labelOffset; font = this._resolveTickFontOptions(i); lineHeight = font.lineHeight; lineCount = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.b)(label) ? label.length : 1; const halfCount = lineCount / 2; const color = optsAtIndex.color; const strokeColor = optsAtIndex.textStrokeColor; const strokeWidth = optsAtIndex.textStrokeWidth; let tickTextAlign = textAlign; if (isHorizontal) { x = pixel; if (textAlign === 'inner') { if (i === ilen - 1) { tickTextAlign = !this.options.reverse ? 'right' : 'left'; } else if (i === 0) { tickTextAlign = !this.options.reverse ? 'left' : 'right'; } else { tickTextAlign = 'center'; } } if (position === 'top') { if (crossAlign === 'near' || rotation !== 0) { textOffset = -lineCount * lineHeight + lineHeight / 2; } else if (crossAlign === 'center') { textOffset = -labelSizes.highest.height / 2 - halfCount * lineHeight + lineHeight; } else { textOffset = -labelSizes.highest.height + lineHeight / 2; } } else { if (crossAlign === 'near' || rotation !== 0) { textOffset = lineHeight / 2; } else if (crossAlign === 'center') { textOffset = labelSizes.highest.height / 2 - halfCount * lineHeight; } else { textOffset = labelSizes.highest.height - lineCount * lineHeight; } } if (mirror) { textOffset *= -1; } if (rotation !== 0 && !optsAtIndex.showLabelBackdrop) { x += lineHeight / 2 * Math.sin(rotation); } } else { y = pixel; textOffset = (1 - lineCount) * lineHeight / 2; } let backdrop; if (optsAtIndex.showLabelBackdrop) { const labelPadding = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.E)(optsAtIndex.backdropPadding); const height = labelSizes.heights[i]; const width = labelSizes.widths[i]; let top = textOffset - labelPadding.top; let left = 0 - labelPadding.left; switch(textBaseline){ case 'middle': top -= height / 2; break; case 'bottom': top -= height; break; } switch(textAlign){ case 'center': left -= width / 2; break; case 'right': left -= width; break; } backdrop = { left, top, width: width + labelPadding.width, height: height + labelPadding.height, color: optsAtIndex.backdropColor }; } items.push({ label, font, textOffset, options: { rotation, color, strokeColor, strokeWidth, textAlign: tickTextAlign, textBaseline, translation: [ x, y ], backdrop } }); } return items; } _getXAxisLabelAlignment() { const { position , ticks } = this.options; const rotation = -(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.t)(this.labelRotation); if (rotation) { return position === 'top' ? 'left' : 'right'; } let align = 'center'; if (ticks.align === 'start') { align = 'left'; } else if (ticks.align === 'end') { align = 'right'; } else if (ticks.align === 'inner') { align = 'inner'; } return align; } _getYAxisLabelAlignment(tl) { const { position , ticks: { crossAlign , mirror , padding } } = this.options; const labelSizes = this._getLabelSizes(); const tickAndPadding = tl + padding; const widest = labelSizes.widest.width; let textAlign; let x; if (position === 'left') { if (mirror) { x = this.right + padding; if (crossAlign === 'near') { textAlign = 'left'; } else if (crossAlign === 'center') { textAlign = 'center'; x += widest / 2; } else { textAlign = 'right'; x += widest; } } else { x = this.right - tickAndPadding; if (crossAlign === 'near') { textAlign = 'right'; } else if (crossAlign === 'center') { textAlign = 'center'; x -= widest / 2; } else { textAlign = 'left'; x = this.left; } } } else if (position === 'right') { if (mirror) { x = this.left + padding; if (crossAlign === 'near') { textAlign = 'right'; } else if (crossAlign === 'center') { textAlign = 'center'; x -= widest / 2; } else { textAlign = 'left'; x -= widest; } } else { x = this.left + tickAndPadding; if (crossAlign === 'near') { textAlign = 'left'; } else if (crossAlign === 'center') { textAlign = 'center'; x += widest / 2; } else { textAlign = 'right'; x = this.right; } } } else { textAlign = 'right'; } return { textAlign, x }; } _computeLabelArea() { if (this.options.ticks.mirror) { return; } const chart = this.chart; const position = this.options.position; if (position === 'left' || position === 'right') { return { top: 0, left: this.left, bottom: chart.height, right: this.right }; } if (position === 'top' || position === 'bottom') { return { top: this.top, left: 0, bottom: this.bottom, right: chart.width }; } } drawBackground() { const { ctx , options: { backgroundColor } , left , top , width , height } = this; if (backgroundColor) { ctx.save(); ctx.fillStyle = backgroundColor; ctx.fillRect(left, top, width, height); ctx.restore(); } } getLineWidthForValue(value) { const grid = this.options.grid; if (!this._isVisible() || !grid.display) { return 0; } const ticks = this.ticks; const index = ticks.findIndex((t)=>t.value === value); if (index >= 0) { const opts = grid.setContext(this.getContext(index)); return opts.lineWidth; } return 0; } drawGrid(chartArea) { const grid = this.options.grid; const ctx = this.ctx; const items = this._gridLineItems || (this._gridLineItems = this._computeGridLineItems(chartArea)); let i, ilen; const drawLine = (p1, p2, style)=>{ if (!style.width || !style.color) { return; } ctx.save(); ctx.lineWidth = style.width; ctx.strokeStyle = style.color; ctx.setLineDash(style.borderDash || []); ctx.lineDashOffset = style.borderDashOffset; ctx.beginPath(); ctx.moveTo(p1.x, p1.y); ctx.lineTo(p2.x, p2.y); ctx.stroke(); ctx.restore(); }; if (grid.display) { for(i = 0, ilen = items.length; i < ilen; ++i){ const item = items[i]; if (grid.drawOnChartArea) { drawLine({ x: item.x1, y: item.y1 }, { x: item.x2, y: item.y2 }, item); } if (grid.drawTicks) { drawLine({ x: item.tx1, y: item.ty1 }, { x: item.tx2, y: item.ty2 }, { color: item.tickColor, width: item.tickWidth, borderDash: item.tickBorderDash, borderDashOffset: item.tickBorderDashOffset }); } } } } drawBorder() { const { chart , ctx , options: { border , grid } } = this; const borderOpts = border.setContext(this.getContext()); const axisWidth = border.display ? borderOpts.width : 0; if (!axisWidth) { return; } const lastLineWidth = grid.setContext(this.getContext(0)).lineWidth; const borderValue = this._borderValue; let x1, x2, y1, y2; if (this.isHorizontal()) { x1 = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.X)(chart, this.left, axisWidth) - axisWidth / 2; x2 = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.X)(chart, this.right, lastLineWidth) + lastLineWidth / 2; y1 = y2 = borderValue; } else { y1 = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.X)(chart, this.top, axisWidth) - axisWidth / 2; y2 = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.X)(chart, this.bottom, lastLineWidth) + lastLineWidth / 2; x1 = x2 = borderValue; } ctx.save(); ctx.lineWidth = borderOpts.width; ctx.strokeStyle = borderOpts.color; ctx.beginPath(); ctx.moveTo(x1, y1); ctx.lineTo(x2, y2); ctx.stroke(); ctx.restore(); } drawLabels(chartArea) { const optionTicks = this.options.ticks; if (!optionTicks.display) { return; } const ctx = this.ctx; const area = this._computeLabelArea(); if (area) { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Y)(ctx, area); } const items = this.getLabelItems(chartArea); for (const item of items){ const renderTextOptions = item.options; const tickFont = item.font; const label = item.label; const y = item.textOffset; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Z)(ctx, label, 0, y, tickFont, renderTextOptions); } if (area) { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.$)(ctx); } } drawTitle() { const { ctx , options: { position , title , reverse } } = this; if (!title.display) { return; } const font = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(title.font); const padding = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.E)(title.padding); const align = title.align; let offset = font.lineHeight / 2; if (position === 'bottom' || position === 'center' || (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(position)) { offset += padding.bottom; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.b)(title.text)) { offset += font.lineHeight * (title.text.length - 1); } } else { offset += padding.top; } const { titleX , titleY , maxWidth , rotation } = titleArgs(this, offset, position, align); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Z)(ctx, title.text, 0, 0, font, { color: title.color, maxWidth, rotation, textAlign: titleAlign(align, position, reverse), textBaseline: 'middle', translation: [ titleX, titleY ] }); } draw(chartArea) { if (!this._isVisible()) { return; } this.drawBackground(); this.drawGrid(chartArea); this.drawBorder(); this.drawTitle(); this.drawLabels(chartArea); } _layers() { const opts = this.options; const tz = opts.ticks && opts.ticks.z || 0; const gz = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(opts.grid && opts.grid.z, -1); const bz = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(opts.border && opts.border.z, 0); if (!this._isVisible() || this.draw !== Scale.prototype.draw) { return [ { z: tz, draw: (chartArea)=>{ this.draw(chartArea); } } ]; } return [ { z: gz, draw: (chartArea)=>{ this.drawBackground(); this.drawGrid(chartArea); this.drawTitle(); } }, { z: bz, draw: ()=>{ this.drawBorder(); } }, { z: tz, draw: (chartArea)=>{ this.drawLabels(chartArea); } } ]; } getMatchingVisibleMetas(type) { const metas = this.chart.getSortedVisibleDatasetMetas(); const axisID = this.axis + 'AxisID'; const result = []; let i, ilen; for(i = 0, ilen = metas.length; i < ilen; ++i){ const meta = metas[i]; if (meta[axisID] === this.id && (!type || meta.type === type)) { result.push(meta); } } return result; } _resolveTickFontOptions(index) { const opts = this.options.ticks.setContext(this.getContext(index)); return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(opts.font); } _maxDigits() { const fontSize = this._resolveTickFontOptions(0).lineHeight; return (this.isHorizontal() ? this.width : this.height) / fontSize; } } class TypedRegistry { constructor(type, scope, override){ this.type = type; this.scope = scope; this.override = override; this.items = Object.create(null); } isForType(type) { return Object.prototype.isPrototypeOf.call(this.type.prototype, type.prototype); } register(item) { const proto = Object.getPrototypeOf(item); let parentScope; if (isIChartComponent(proto)) { parentScope = this.register(proto); } const items = this.items; const id = item.id; const scope = this.scope + '.' + id; if (!id) { throw new Error('class does not have id: ' + item); } if (id in items) { return scope; } items[id] = item; registerDefaults(item, scope, parentScope); if (this.override) { _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d.override(item.id, item.overrides); } return scope; } get(id) { return this.items[id]; } unregister(item) { const items = this.items; const id = item.id; const scope = this.scope; if (id in items) { delete items[id]; } if (scope && id in _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d[scope]) { delete _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d[scope][id]; if (this.override) { delete _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a3[id]; } } } } function registerDefaults(item, scope, parentScope) { const itemDefaults = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a4)(Object.create(null), [ parentScope ? _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d.get(parentScope) : {}, _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d.get(scope), item.defaults ]); _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d.set(scope, itemDefaults); if (item.defaultRoutes) { routeDefaults(scope, item.defaultRoutes); } if (item.descriptors) { _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d.describe(scope, item.descriptors); } } function routeDefaults(scope, routes) { Object.keys(routes).forEach((property)=>{ const propertyParts = property.split('.'); const sourceName = propertyParts.pop(); const sourceScope = [ scope ].concat(propertyParts).join('.'); const parts = routes[property].split('.'); const targetName = parts.pop(); const targetScope = parts.join('.'); _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d.route(sourceScope, sourceName, targetScope, targetName); }); } function isIChartComponent(proto) { return 'id' in proto && 'defaults' in proto; } class Registry { constructor(){ this.controllers = new TypedRegistry(DatasetController, 'datasets', true); this.elements = new TypedRegistry(Element, 'elements'); this.plugins = new TypedRegistry(Object, 'plugins'); this.scales = new TypedRegistry(Scale, 'scales'); this._typedRegistries = [ this.controllers, this.scales, this.elements ]; } add(...args) { this._each('register', args); } remove(...args) { this._each('unregister', args); } addControllers(...args) { this._each('register', args, this.controllers); } addElements(...args) { this._each('register', args, this.elements); } addPlugins(...args) { this._each('register', args, this.plugins); } addScales(...args) { this._each('register', args, this.scales); } getController(id) { return this._get(id, this.controllers, 'controller'); } getElement(id) { return this._get(id, this.elements, 'element'); } getPlugin(id) { return this._get(id, this.plugins, 'plugin'); } getScale(id) { return this._get(id, this.scales, 'scale'); } removeControllers(...args) { this._each('unregister', args, this.controllers); } removeElements(...args) { this._each('unregister', args, this.elements); } removePlugins(...args) { this._each('unregister', args, this.plugins); } removeScales(...args) { this._each('unregister', args, this.scales); } _each(method, args, typedRegistry) { [ ...args ].forEach((arg)=>{ const reg = typedRegistry || this._getRegistryForType(arg); if (typedRegistry || reg.isForType(arg) || reg === this.plugins && arg.id) { this._exec(method, reg, arg); } else { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(arg, (item)=>{ const itemReg = typedRegistry || this._getRegistryForType(item); this._exec(method, itemReg, item); }); } }); } _exec(method, registry, component) { const camelMethod = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a5)(method); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(component['before' + camelMethod], [], component); registry[method](component); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(component['after' + camelMethod], [], component); } _getRegistryForType(type) { for(let i = 0; i < this._typedRegistries.length; i++){ const reg = this._typedRegistries[i]; if (reg.isForType(type)) { return reg; } } return this.plugins; } _get(id, typedRegistry, type) { const item = typedRegistry.get(id); if (item === undefined) { throw new Error('"' + id + '" is not a registered ' + type + '.'); } return item; } } var registry = /* #__PURE__ */ new Registry(); class PluginService { constructor(){ this._init = []; } notify(chart, hook, args, filter) { if (hook === 'beforeInit') { this._init = this._createDescriptors(chart, true); this._notify(this._init, chart, 'install'); } const descriptors = filter ? this._descriptors(chart).filter(filter) : this._descriptors(chart); const result = this._notify(descriptors, chart, hook, args); if (hook === 'afterDestroy') { this._notify(descriptors, chart, 'stop'); this._notify(this._init, chart, 'uninstall'); } return result; } _notify(descriptors, chart, hook, args) { args = args || {}; for (const descriptor of descriptors){ const plugin = descriptor.plugin; const method = plugin[hook]; const params = [ chart, args, descriptor.options ]; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(method, params, plugin) === false && args.cancelable) { return false; } } return true; } invalidate() { if (!(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(this._cache)) { this._oldCache = this._cache; this._cache = undefined; } } _descriptors(chart) { if (this._cache) { return this._cache; } const descriptors = this._cache = this._createDescriptors(chart); this._notifyStateChanges(chart); return descriptors; } _createDescriptors(chart, all) { const config = chart && chart.config; const options = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(config.options && config.options.plugins, {}); const plugins = allPlugins(config); return options === false && !all ? [] : createDescriptors(chart, plugins, options, all); } _notifyStateChanges(chart) { const previousDescriptors = this._oldCache || []; const descriptors = this._cache; const diff = (a, b)=>a.filter((x)=>!b.some((y)=>x.plugin.id === y.plugin.id)); this._notify(diff(previousDescriptors, descriptors), chart, 'stop'); this._notify(diff(descriptors, previousDescriptors), chart, 'start'); } } function allPlugins(config) { const localIds = {}; const plugins = []; const keys = Object.keys(registry.plugins.items); for(let i = 0; i < keys.length; i++){ plugins.push(registry.getPlugin(keys[i])); } const local = config.plugins || []; for(let i = 0; i < local.length; i++){ const plugin = local[i]; if (plugins.indexOf(plugin) === -1) { plugins.push(plugin); localIds[plugin.id] = true; } } return { plugins, localIds }; } function getOpts(options, all) { if (!all && options === false) { return null; } if (options === true) { return {}; } return options; } function createDescriptors(chart, { plugins , localIds }, options, all) { const result = []; const context = chart.getContext(); for (const plugin of plugins){ const id = plugin.id; const opts = getOpts(options[id], all); if (opts === null) { continue; } result.push({ plugin, options: pluginOpts(chart.config, { plugin, local: localIds[id] }, opts, context) }); } return result; } function pluginOpts(config, { plugin , local }, opts, context) { const keys = config.pluginScopeKeys(plugin); const scopes = config.getOptionScopes(opts, keys); if (local && plugin.defaults) { scopes.push(plugin.defaults); } return config.createResolver(scopes, context, [ '' ], { scriptable: false, indexable: false, allKeys: true }); } function getIndexAxis(type, options) { const datasetDefaults = _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d.datasets[type] || {}; const datasetOptions = (options.datasets || {})[type] || {}; return datasetOptions.indexAxis || options.indexAxis || datasetDefaults.indexAxis || 'x'; } function getAxisFromDefaultScaleID(id, indexAxis) { let axis = id; if (id === '_index_') { axis = indexAxis; } else if (id === '_value_') { axis = indexAxis === 'x' ? 'y' : 'x'; } return axis; } function getDefaultScaleIDFromAxis(axis, indexAxis) { return axis === indexAxis ? '_index_' : '_value_'; } function idMatchesAxis(id) { if (id === 'x' || id === 'y' || id === 'r') { return id; } } function axisFromPosition(position) { if (position === 'top' || position === 'bottom') { return 'x'; } if (position === 'left' || position === 'right') { return 'y'; } } function determineAxis(id, ...scaleOptions) { if (idMatchesAxis(id)) { return id; } for (const opts of scaleOptions){ const axis = opts.axis || axisFromPosition(opts.position) || id.length > 1 && idMatchesAxis(id[0].toLowerCase()); if (axis) { return axis; } } throw new Error(`Cannot determine type of '${id}' axis. Please provide 'axis' or 'position' option.`); } function getAxisFromDataset(id, axis, dataset) { if (dataset[axis + 'AxisID'] === id) { return { axis }; } } function retrieveAxisFromDatasets(id, config) { if (config.data && config.data.datasets) { const boundDs = config.data.datasets.filter((d)=>d.xAxisID === id || d.yAxisID === id); if (boundDs.length) { return getAxisFromDataset(id, 'x', boundDs[0]) || getAxisFromDataset(id, 'y', boundDs[0]); } } return {}; } function mergeScaleConfig(config, options) { const chartDefaults = _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a3[config.type] || { scales: {} }; const configScales = options.scales || {}; const chartIndexAxis = getIndexAxis(config.type, options); const scales = Object.create(null); Object.keys(configScales).forEach((id)=>{ const scaleConf = configScales[id]; if (!(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(scaleConf)) { return console.error(`Invalid scale configuration for scale: ${id}`); } if (scaleConf._proxy) { return console.warn(`Ignoring resolver passed as options for scale: ${id}`); } const axis = determineAxis(id, scaleConf, retrieveAxisFromDatasets(id, config), _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d.scales[scaleConf.type]); const defaultId = getDefaultScaleIDFromAxis(axis, chartIndexAxis); const defaultScaleOptions = chartDefaults.scales || {}; scales[id] = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ab)(Object.create(null), [ { axis }, scaleConf, defaultScaleOptions[axis], defaultScaleOptions[defaultId] ]); }); config.data.datasets.forEach((dataset)=>{ const type = dataset.type || config.type; const indexAxis = dataset.indexAxis || getIndexAxis(type, options); const datasetDefaults = _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a3[type] || {}; const defaultScaleOptions = datasetDefaults.scales || {}; Object.keys(defaultScaleOptions).forEach((defaultID)=>{ const axis = getAxisFromDefaultScaleID(defaultID, indexAxis); const id = dataset[axis + 'AxisID'] || axis; scales[id] = scales[id] || Object.create(null); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ab)(scales[id], [ { axis }, configScales[id], defaultScaleOptions[defaultID] ]); }); }); Object.keys(scales).forEach((key)=>{ const scale = scales[key]; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ab)(scale, [ _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d.scales[scale.type], _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d.scale ]); }); return scales; } function initOptions(config) { const options = config.options || (config.options = {}); options.plugins = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(options.plugins, {}); options.scales = mergeScaleConfig(config, options); } function initData(data) { data = data || {}; data.datasets = data.datasets || []; data.labels = data.labels || []; return data; } function initConfig(config) { config = config || {}; config.data = initData(config.data); initOptions(config); return config; } const keyCache = new Map(); const keysCached = new Set(); function cachedKeys(cacheKey, generate) { let keys = keyCache.get(cacheKey); if (!keys) { keys = generate(); keyCache.set(cacheKey, keys); keysCached.add(keys); } return keys; } const addIfFound = (set, obj, key)=>{ const opts = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.f)(obj, key); if (opts !== undefined) { set.add(opts); } }; class Config { constructor(config){ this._config = initConfig(config); this._scopeCache = new Map(); this._resolverCache = new Map(); } get platform() { return this._config.platform; } get type() { return this._config.type; } set type(type) { this._config.type = type; } get data() { return this._config.data; } set data(data) { this._config.data = initData(data); } get options() { return this._config.options; } set options(options) { this._config.options = options; } get plugins() { return this._config.plugins; } update() { const config = this._config; this.clearCache(); initOptions(config); } clearCache() { this._scopeCache.clear(); this._resolverCache.clear(); } datasetScopeKeys(datasetType) { return cachedKeys(datasetType, ()=>[ [ `datasets.${datasetType}`, '' ] ]); } datasetAnimationScopeKeys(datasetType, transition) { return cachedKeys(`${datasetType}.transition.${transition}`, ()=>[ [ `datasets.${datasetType}.transitions.${transition}`, `transitions.${transition}` ], [ `datasets.${datasetType}`, '' ] ]); } datasetElementScopeKeys(datasetType, elementType) { return cachedKeys(`${datasetType}-${elementType}`, ()=>[ [ `datasets.${datasetType}.elements.${elementType}`, `datasets.${datasetType}`, `elements.${elementType}`, '' ] ]); } pluginScopeKeys(plugin) { const id = plugin.id; const type = this.type; return cachedKeys(`${type}-plugin-${id}`, ()=>[ [ `plugins.${id}`, ...plugin.additionalOptionScopes || [] ] ]); } _cachedScopes(mainScope, resetCache) { const _scopeCache = this._scopeCache; let cache = _scopeCache.get(mainScope); if (!cache || resetCache) { cache = new Map(); _scopeCache.set(mainScope, cache); } return cache; } getOptionScopes(mainScope, keyLists, resetCache) { const { options , type } = this; const cache = this._cachedScopes(mainScope, resetCache); const cached = cache.get(keyLists); if (cached) { return cached; } const scopes = new Set(); keyLists.forEach((keys)=>{ if (mainScope) { scopes.add(mainScope); keys.forEach((key)=>addIfFound(scopes, mainScope, key)); } keys.forEach((key)=>addIfFound(scopes, options, key)); keys.forEach((key)=>addIfFound(scopes, _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a3[type] || {}, key)); keys.forEach((key)=>addIfFound(scopes, _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d, key)); keys.forEach((key)=>addIfFound(scopes, _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a6, key)); }); const array = Array.from(scopes); if (array.length === 0) { array.push(Object.create(null)); } if (keysCached.has(keyLists)) { cache.set(keyLists, array); } return array; } chartOptionScopes() { const { options , type } = this; return [ options, _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a3[type] || {}, _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d.datasets[type] || {}, { type }, _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d, _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a6 ]; } resolveNamedOptions(scopes, names, context, prefixes = [ '' ]) { const result = { $shared: true }; const { resolver , subPrefixes } = getResolver(this._resolverCache, scopes, prefixes); let options = resolver; if (needContext(resolver, names)) { result.$shared = false; context = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a7)(context) ? context() : context; const subResolver = this.createResolver(scopes, context, subPrefixes); options = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a8)(resolver, context, subResolver); } for (const prop of names){ result[prop] = options[prop]; } return result; } createResolver(scopes, context, prefixes = [ '' ], descriptorDefaults) { const { resolver } = getResolver(this._resolverCache, scopes, prefixes); return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(context) ? (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a8)(resolver, context, undefined, descriptorDefaults) : resolver; } } function getResolver(resolverCache, scopes, prefixes) { let cache = resolverCache.get(scopes); if (!cache) { cache = new Map(); resolverCache.set(scopes, cache); } const cacheKey = prefixes.join(); let cached = cache.get(cacheKey); if (!cached) { const resolver = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a9)(scopes, prefixes); cached = { resolver, subPrefixes: prefixes.filter((p)=>!p.toLowerCase().includes('hover')) }; cache.set(cacheKey, cached); } return cached; } const hasFunction = (value)=>(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(value) && Object.getOwnPropertyNames(value).reduce((acc, key)=>acc || (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a7)(value[key]), false); function needContext(proxy, names) { const { isScriptable , isIndexable } = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aa)(proxy); for (const prop of names){ const scriptable = isScriptable(prop); const indexable = isIndexable(prop); const value = (indexable || scriptable) && proxy[prop]; if (scriptable && ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a7)(value) || hasFunction(value)) || indexable && (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.b)(value)) { return true; } } return false; } var version = "4.3.0"; const KNOWN_POSITIONS = [ 'top', 'bottom', 'left', 'right', 'chartArea' ]; function positionIsHorizontal(position, axis) { return position === 'top' || position === 'bottom' || KNOWN_POSITIONS.indexOf(position) === -1 && axis === 'x'; } function compare2Level(l1, l2) { return function(a, b) { return a[l1] === b[l1] ? a[l2] - b[l2] : a[l1] - b[l1]; }; } function onAnimationsComplete(context) { const chart = context.chart; const animationOptions = chart.options.animation; chart.notifyPlugins('afterRender'); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(animationOptions && animationOptions.onComplete, [ context ], chart); } function onAnimationProgress(context) { const chart = context.chart; const animationOptions = chart.options.animation; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(animationOptions && animationOptions.onProgress, [ context ], chart); } function getCanvas(item) { if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.M)() && typeof item === 'string') { item = document.getElementById(item); } else if (item && item.length) { item = item[0]; } if (item && item.canvas) { item = item.canvas; } return item; } const instances = {}; const getChart = (key)=>{ const canvas = getCanvas(key); return Object.values(instances).filter((c)=>c.canvas === canvas).pop(); }; function moveNumericKeys(obj, start, move) { const keys = Object.keys(obj); for (const key of keys){ const intKey = +key; if (intKey >= start) { const value = obj[key]; delete obj[key]; if (move > 0 || intKey > start) { obj[intKey + move] = value; } } } } function determineLastEvent(e, lastEvent, inChartArea, isClick) { if (!inChartArea || e.type === 'mouseout') { return null; } if (isClick) { return lastEvent; } return e; } function getDatasetArea(meta) { const { xScale , yScale } = meta; if (xScale && yScale) { return { left: xScale.left, right: xScale.right, top: yScale.top, bottom: yScale.bottom }; } } class Chart { static defaults = _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d; static instances = instances; static overrides = _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a3; static registry = registry; static version = version; static getChart = getChart; static register(...items) { registry.add(...items); invalidatePlugins(); } static unregister(...items) { registry.remove(...items); invalidatePlugins(); } constructor(item, userConfig){ const config = this.config = new Config(userConfig); const initialCanvas = getCanvas(item); const existingChart = getChart(initialCanvas); if (existingChart) { throw new Error('Canvas is already in use. Chart with ID \'' + existingChart.id + '\'' + ' must be destroyed before the canvas with ID \'' + existingChart.canvas.id + '\' can be reused.'); } const options = config.createResolver(config.chartOptionScopes(), this.getContext()); this.platform = new (config.platform || _detectPlatform(initialCanvas))(); this.platform.updateConfig(config); const context = this.platform.acquireContext(initialCanvas, options.aspectRatio); const canvas = context && context.canvas; const height = canvas && canvas.height; const width = canvas && canvas.width; this.id = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ac)(); this.ctx = context; this.canvas = canvas; this.width = width; this.height = height; this._options = options; this._aspectRatio = this.aspectRatio; this._layers = []; this._metasets = []; this._stacks = undefined; this.boxes = []; this.currentDevicePixelRatio = undefined; this.chartArea = undefined; this._active = []; this._lastEvent = undefined; this._listeners = {}; this._responsiveListeners = undefined; this._sortedMetasets = []; this.scales = {}; this._plugins = new PluginService(); this.$proxies = {}; this._hiddenIndices = {}; this.attached = false; this._animationsDisabled = undefined; this.$context = undefined; this._doResize = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ad)((mode)=>this.update(mode), options.resizeDelay || 0); this._dataChanges = []; instances[this.id] = this; if (!context || !canvas) { console.error("Failed to create chart: can't acquire context from the given item"); return; } animator.listen(this, 'complete', onAnimationsComplete); animator.listen(this, 'progress', onAnimationProgress); this._initialize(); if (this.attached) { this.update(); } } get aspectRatio() { const { options: { aspectRatio , maintainAspectRatio } , width , height , _aspectRatio } = this; if (!(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(aspectRatio)) { return aspectRatio; } if (maintainAspectRatio && _aspectRatio) { return _aspectRatio; } return height ? width / height : null; } get data() { return this.config.data; } set data(data) { this.config.data = data; } get options() { return this._options; } set options(options) { this.config.options = options; } get registry() { return registry; } _initialize() { this.notifyPlugins('beforeInit'); if (this.options.responsive) { this.resize(); } else { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ae)(this, this.options.devicePixelRatio); } this.bindEvents(); this.notifyPlugins('afterInit'); return this; } clear() { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.af)(this.canvas, this.ctx); return this; } stop() { animator.stop(this); return this; } resize(width, height) { if (!animator.running(this)) { this._resize(width, height); } else { this._resizeBeforeDraw = { width, height }; } } _resize(width, height) { const options = this.options; const canvas = this.canvas; const aspectRatio = options.maintainAspectRatio && this.aspectRatio; const newSize = this.platform.getMaximumSize(canvas, width, height, aspectRatio); const newRatio = options.devicePixelRatio || this.platform.getDevicePixelRatio(); const mode = this.width ? 'resize' : 'attach'; this.width = newSize.width; this.height = newSize.height; this._aspectRatio = this.aspectRatio; if (!(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ae)(this, newRatio, true)) { return; } this.notifyPlugins('resize', { size: newSize }); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(options.onResize, [ this, newSize ], this); if (this.attached) { if (this._doResize(mode)) { this.render(); } } } ensureScalesHaveIDs() { const options = this.options; const scalesOptions = options.scales || {}; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(scalesOptions, (axisOptions, axisID)=>{ axisOptions.id = axisID; }); } buildOrUpdateScales() { const options = this.options; const scaleOpts = options.scales; const scales = this.scales; const updated = Object.keys(scales).reduce((obj, id)=>{ obj[id] = false; return obj; }, {}); let items = []; if (scaleOpts) { items = items.concat(Object.keys(scaleOpts).map((id)=>{ const scaleOptions = scaleOpts[id]; const axis = determineAxis(id, scaleOptions); const isRadial = axis === 'r'; const isHorizontal = axis === 'x'; return { options: scaleOptions, dposition: isRadial ? 'chartArea' : isHorizontal ? 'bottom' : 'left', dtype: isRadial ? 'radialLinear' : isHorizontal ? 'category' : 'linear' }; })); } (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(items, (item)=>{ const scaleOptions = item.options; const id = scaleOptions.id; const axis = determineAxis(id, scaleOptions); const scaleType = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(scaleOptions.type, item.dtype); if (scaleOptions.position === undefined || positionIsHorizontal(scaleOptions.position, axis) !== positionIsHorizontal(item.dposition)) { scaleOptions.position = item.dposition; } updated[id] = true; let scale = null; if (id in scales && scales[id].type === scaleType) { scale = scales[id]; } else { const scaleClass = registry.getScale(scaleType); scale = new scaleClass({ id, type: scaleType, ctx: this.ctx, chart: this }); scales[scale.id] = scale; } scale.init(scaleOptions, options); }); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(updated, (hasUpdated, id)=>{ if (!hasUpdated) { delete scales[id]; } }); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(scales, (scale)=>{ layouts.configure(this, scale, scale.options); layouts.addBox(this, scale); }); } _updateMetasets() { const metasets = this._metasets; const numData = this.data.datasets.length; const numMeta = metasets.length; metasets.sort((a, b)=>a.index - b.index); if (numMeta > numData) { for(let i = numData; i < numMeta; ++i){ this._destroyDatasetMeta(i); } metasets.splice(numData, numMeta - numData); } this._sortedMetasets = metasets.slice(0).sort(compare2Level('order', 'index')); } _removeUnreferencedMetasets() { const { _metasets: metasets , data: { datasets } } = this; if (metasets.length > datasets.length) { delete this._stacks; } metasets.forEach((meta, index)=>{ if (datasets.filter((x)=>x === meta._dataset).length === 0) { this._destroyDatasetMeta(index); } }); } buildOrUpdateControllers() { const newControllers = []; const datasets = this.data.datasets; let i, ilen; this._removeUnreferencedMetasets(); for(i = 0, ilen = datasets.length; i < ilen; i++){ const dataset = datasets[i]; let meta = this.getDatasetMeta(i); const type = dataset.type || this.config.type; if (meta.type && meta.type !== type) { this._destroyDatasetMeta(i); meta = this.getDatasetMeta(i); } meta.type = type; meta.indexAxis = dataset.indexAxis || getIndexAxis(type, this.options); meta.order = dataset.order || 0; meta.index = i; meta.label = '' + dataset.label; meta.visible = this.isDatasetVisible(i); if (meta.controller) { meta.controller.updateIndex(i); meta.controller.linkScales(); } else { const ControllerClass = registry.getController(type); const { datasetElementType , dataElementType } = _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d.datasets[type]; Object.assign(ControllerClass, { dataElementType: registry.getElement(dataElementType), datasetElementType: datasetElementType && registry.getElement(datasetElementType) }); meta.controller = new ControllerClass(this, i); newControllers.push(meta.controller); } } this._updateMetasets(); return newControllers; } _resetElements() { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(this.data.datasets, (dataset, datasetIndex)=>{ this.getDatasetMeta(datasetIndex).controller.reset(); }, this); } reset() { this._resetElements(); this.notifyPlugins('reset'); } update(mode) { const config = this.config; config.update(); const options = this._options = config.createResolver(config.chartOptionScopes(), this.getContext()); const animsDisabled = this._animationsDisabled = !options.animation; this._updateScales(); this._checkEventBindings(); this._updateHiddenIndices(); this._plugins.invalidate(); if (this.notifyPlugins('beforeUpdate', { mode, cancelable: true }) === false) { return; } const newControllers = this.buildOrUpdateControllers(); this.notifyPlugins('beforeElementsUpdate'); let minPadding = 0; for(let i = 0, ilen = this.data.datasets.length; i < ilen; i++){ const { controller } = this.getDatasetMeta(i); const reset = !animsDisabled && newControllers.indexOf(controller) === -1; controller.buildOrUpdateElements(reset); minPadding = Math.max(+controller.getMaxOverflow(), minPadding); } minPadding = this._minPadding = options.layout.autoPadding ? minPadding : 0; this._updateLayout(minPadding); if (!animsDisabled) { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(newControllers, (controller)=>{ controller.reset(); }); } this._updateDatasets(mode); this.notifyPlugins('afterUpdate', { mode }); this._layers.sort(compare2Level('z', '_idx')); const { _active , _lastEvent } = this; if (_lastEvent) { this._eventHandler(_lastEvent, true); } else if (_active.length) { this._updateHoverStyles(_active, _active, true); } this.render(); } _updateScales() { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(this.scales, (scale)=>{ layouts.removeBox(this, scale); }); this.ensureScalesHaveIDs(); this.buildOrUpdateScales(); } _checkEventBindings() { const options = this.options; const existingEvents = new Set(Object.keys(this._listeners)); const newEvents = new Set(options.events); if (!(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ag)(existingEvents, newEvents) || !!this._responsiveListeners !== options.responsive) { this.unbindEvents(); this.bindEvents(); } } _updateHiddenIndices() { const { _hiddenIndices } = this; const changes = this._getUniformDataChanges() || []; for (const { method , start , count } of changes){ const move = method === '_removeElements' ? -count : count; moveNumericKeys(_hiddenIndices, start, move); } } _getUniformDataChanges() { const _dataChanges = this._dataChanges; if (!_dataChanges || !_dataChanges.length) { return; } this._dataChanges = []; const datasetCount = this.data.datasets.length; const makeSet = (idx)=>new Set(_dataChanges.filter((c)=>c[0] === idx).map((c, i)=>i + ',' + c.splice(1).join(','))); const changeSet = makeSet(0); for(let i = 1; i < datasetCount; i++){ if (!(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ag)(changeSet, makeSet(i))) { return; } } return Array.from(changeSet).map((c)=>c.split(',')).map((a)=>({ method: a[1], start: +a[2], count: +a[3] })); } _updateLayout(minPadding) { if (this.notifyPlugins('beforeLayout', { cancelable: true }) === false) { return; } layouts.update(this, this.width, this.height, minPadding); const area = this.chartArea; const noArea = area.width <= 0 || area.height <= 0; this._layers = []; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(this.boxes, (box)=>{ if (noArea && box.position === 'chartArea') { return; } if (box.configure) { box.configure(); } this._layers.push(...box._layers()); }, this); this._layers.forEach((item, index)=>{ item._idx = index; }); this.notifyPlugins('afterLayout'); } _updateDatasets(mode) { if (this.notifyPlugins('beforeDatasetsUpdate', { mode, cancelable: true }) === false) { return; } for(let i = 0, ilen = this.data.datasets.length; i < ilen; ++i){ this.getDatasetMeta(i).controller.configure(); } for(let i = 0, ilen = this.data.datasets.length; i < ilen; ++i){ this._updateDataset(i, (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a7)(mode) ? mode({ datasetIndex: i }) : mode); } this.notifyPlugins('afterDatasetsUpdate', { mode }); } _updateDataset(index, mode) { const meta = this.getDatasetMeta(index); const args = { meta, index, mode, cancelable: true }; if (this.notifyPlugins('beforeDatasetUpdate', args) === false) { return; } meta.controller._update(mode); args.cancelable = false; this.notifyPlugins('afterDatasetUpdate', args); } render() { if (this.notifyPlugins('beforeRender', { cancelable: true }) === false) { return; } if (animator.has(this)) { if (this.attached && !animator.running(this)) { animator.start(this); } } else { this.draw(); onAnimationsComplete({ chart: this }); } } draw() { let i; if (this._resizeBeforeDraw) { const { width , height } = this._resizeBeforeDraw; this._resize(width, height); this._resizeBeforeDraw = null; } this.clear(); if (this.width <= 0 || this.height <= 0) { return; } if (this.notifyPlugins('beforeDraw', { cancelable: true }) === false) { return; } const layers = this._layers; for(i = 0; i < layers.length && layers[i].z <= 0; ++i){ layers[i].draw(this.chartArea); } this._drawDatasets(); for(; i < layers.length; ++i){ layers[i].draw(this.chartArea); } this.notifyPlugins('afterDraw'); } _getSortedDatasetMetas(filterVisible) { const metasets = this._sortedMetasets; const result = []; let i, ilen; for(i = 0, ilen = metasets.length; i < ilen; ++i){ const meta = metasets[i]; if (!filterVisible || meta.visible) { result.push(meta); } } return result; } getSortedVisibleDatasetMetas() { return this._getSortedDatasetMetas(true); } _drawDatasets() { if (this.notifyPlugins('beforeDatasetsDraw', { cancelable: true }) === false) { return; } const metasets = this.getSortedVisibleDatasetMetas(); for(let i = metasets.length - 1; i >= 0; --i){ this._drawDataset(metasets[i]); } this.notifyPlugins('afterDatasetsDraw'); } _drawDataset(meta) { const ctx = this.ctx; const clip = meta._clip; const useClip = !clip.disabled; const area = getDatasetArea(meta) || this.chartArea; const args = { meta, index: meta.index, cancelable: true }; if (this.notifyPlugins('beforeDatasetDraw', args) === false) { return; } if (useClip) { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Y)(ctx, { left: clip.left === false ? 0 : area.left - clip.left, right: clip.right === false ? this.width : area.right + clip.right, top: clip.top === false ? 0 : area.top - clip.top, bottom: clip.bottom === false ? this.height : area.bottom + clip.bottom }); } meta.controller.draw(); if (useClip) { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.$)(ctx); } args.cancelable = false; this.notifyPlugins('afterDatasetDraw', args); } isPointInArea(point) { return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.C)(point, this.chartArea, this._minPadding); } getElementsAtEventForMode(e, mode, options, useFinalPosition) { const method = Interaction.modes[mode]; if (typeof method === 'function') { return method(this, e, options, useFinalPosition); } return []; } getDatasetMeta(datasetIndex) { const dataset = this.data.datasets[datasetIndex]; const metasets = this._metasets; let meta = metasets.filter((x)=>x && x._dataset === dataset).pop(); if (!meta) { meta = { type: null, data: [], dataset: null, controller: null, hidden: null, xAxisID: null, yAxisID: null, order: dataset && dataset.order || 0, index: datasetIndex, _dataset: dataset, _parsed: [], _sorted: false }; metasets.push(meta); } return meta; } getContext() { return this.$context || (this.$context = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.j)(null, { chart: this, type: 'chart' })); } getVisibleDatasetCount() { return this.getSortedVisibleDatasetMetas().length; } isDatasetVisible(datasetIndex) { const dataset = this.data.datasets[datasetIndex]; if (!dataset) { return false; } const meta = this.getDatasetMeta(datasetIndex); return typeof meta.hidden === 'boolean' ? !meta.hidden : !dataset.hidden; } setDatasetVisibility(datasetIndex, visible) { const meta = this.getDatasetMeta(datasetIndex); meta.hidden = !visible; } toggleDataVisibility(index) { this._hiddenIndices[index] = !this._hiddenIndices[index]; } getDataVisibility(index) { return !this._hiddenIndices[index]; } _updateVisibility(datasetIndex, dataIndex, visible) { const mode = visible ? 'show' : 'hide'; const meta = this.getDatasetMeta(datasetIndex); const anims = meta.controller._resolveAnimations(undefined, mode); if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.h)(dataIndex)) { meta.data[dataIndex].hidden = !visible; this.update(); } else { this.setDatasetVisibility(datasetIndex, visible); anims.update(meta, { visible }); this.update((ctx)=>ctx.datasetIndex === datasetIndex ? mode : undefined); } } hide(datasetIndex, dataIndex) { this._updateVisibility(datasetIndex, dataIndex, false); } show(datasetIndex, dataIndex) { this._updateVisibility(datasetIndex, dataIndex, true); } _destroyDatasetMeta(datasetIndex) { const meta = this._metasets[datasetIndex]; if (meta && meta.controller) { meta.controller._destroy(); } delete this._metasets[datasetIndex]; } _stop() { let i, ilen; this.stop(); animator.remove(this); for(i = 0, ilen = this.data.datasets.length; i < ilen; ++i){ this._destroyDatasetMeta(i); } } destroy() { this.notifyPlugins('beforeDestroy'); const { canvas , ctx } = this; this._stop(); this.config.clearCache(); if (canvas) { this.unbindEvents(); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.af)(canvas, ctx); this.platform.releaseContext(ctx); this.canvas = null; this.ctx = null; } delete instances[this.id]; this.notifyPlugins('afterDestroy'); } toBase64Image(...args) { return this.canvas.toDataURL(...args); } bindEvents() { this.bindUserEvents(); if (this.options.responsive) { this.bindResponsiveEvents(); } else { this.attached = true; } } bindUserEvents() { const listeners = this._listeners; const platform = this.platform; const _add = (type, listener)=>{ platform.addEventListener(this, type, listener); listeners[type] = listener; }; const listener = (e, x, y)=>{ e.offsetX = x; e.offsetY = y; this._eventHandler(e); }; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(this.options.events, (type)=>_add(type, listener)); } bindResponsiveEvents() { if (!this._responsiveListeners) { this._responsiveListeners = {}; } const listeners = this._responsiveListeners; const platform = this.platform; const _add = (type, listener)=>{ platform.addEventListener(this, type, listener); listeners[type] = listener; }; const _remove = (type, listener)=>{ if (listeners[type]) { platform.removeEventListener(this, type, listener); delete listeners[type]; } }; const listener = (width, height)=>{ if (this.canvas) { this.resize(width, height); } }; let detached; const attached = ()=>{ _remove('attach', attached); this.attached = true; this.resize(); _add('resize', listener); _add('detach', detached); }; detached = ()=>{ this.attached = false; _remove('resize', listener); this._stop(); this._resize(0, 0); _add('attach', attached); }; if (platform.isAttached(this.canvas)) { attached(); } else { detached(); } } unbindEvents() { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(this._listeners, (listener, type)=>{ this.platform.removeEventListener(this, type, listener); }); this._listeners = {}; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(this._responsiveListeners, (listener, type)=>{ this.platform.removeEventListener(this, type, listener); }); this._responsiveListeners = undefined; } updateHoverStyle(items, mode, enabled) { const prefix = enabled ? 'set' : 'remove'; let meta, item, i, ilen; if (mode === 'dataset') { meta = this.getDatasetMeta(items[0].datasetIndex); meta.controller['_' + prefix + 'DatasetHoverStyle'](); } for(i = 0, ilen = items.length; i < ilen; ++i){ item = items[i]; const controller = item && this.getDatasetMeta(item.datasetIndex).controller; if (controller) { controller[prefix + 'HoverStyle'](item.element, item.datasetIndex, item.index); } } } getActiveElements() { return this._active || []; } setActiveElements(activeElements) { const lastActive = this._active || []; const active = activeElements.map(({ datasetIndex , index })=>{ const meta = this.getDatasetMeta(datasetIndex); if (!meta) { throw new Error('No dataset found at index ' + datasetIndex); } return { datasetIndex, element: meta.data[index], index }; }); const changed = !(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ah)(active, lastActive); if (changed) { this._active = active; this._lastEvent = null; this._updateHoverStyles(active, lastActive); } } notifyPlugins(hook, args, filter) { return this._plugins.notify(this, hook, args, filter); } isPluginEnabled(pluginId) { return this._plugins._cache.filter((p)=>p.plugin.id === pluginId).length === 1; } _updateHoverStyles(active, lastActive, replay) { const hoverOptions = this.options.hover; const diff = (a, b)=>a.filter((x)=>!b.some((y)=>x.datasetIndex === y.datasetIndex && x.index === y.index)); const deactivated = diff(lastActive, active); const activated = replay ? active : diff(active, lastActive); if (deactivated.length) { this.updateHoverStyle(deactivated, hoverOptions.mode, false); } if (activated.length && hoverOptions.mode) { this.updateHoverStyle(activated, hoverOptions.mode, true); } } _eventHandler(e, replay) { const args = { event: e, replay, cancelable: true, inChartArea: this.isPointInArea(e) }; const eventFilter = (plugin)=>(plugin.options.events || this.options.events).includes(e.native.type); if (this.notifyPlugins('beforeEvent', args, eventFilter) === false) { return; } const changed = this._handleEvent(e, replay, args.inChartArea); args.cancelable = false; this.notifyPlugins('afterEvent', args, eventFilter); if (changed || args.changed) { this.render(); } return this; } _handleEvent(e, replay, inChartArea) { const { _active: lastActive = [] , options } = this; const useFinalPosition = replay; const active = this._getActiveElements(e, lastActive, inChartArea, useFinalPosition); const isClick = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ai)(e); const lastEvent = determineLastEvent(e, this._lastEvent, inChartArea, isClick); if (inChartArea) { this._lastEvent = null; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(options.onHover, [ e, active, this ], this); if (isClick) { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(options.onClick, [ e, active, this ], this); } } const changed = !(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ah)(active, lastActive); if (changed || replay) { this._active = active; this._updateHoverStyles(active, lastActive, replay); } this._lastEvent = lastEvent; return changed; } _getActiveElements(e, lastActive, inChartArea, useFinalPosition) { if (e.type === 'mouseout') { return []; } if (!inChartArea) { return lastActive; } const hoverOptions = this.options.hover; return this.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions, useFinalPosition); } } function invalidatePlugins() { return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(Chart.instances, (chart)=>chart._plugins.invalidate()); } function clipArc(ctx, element, endAngle) { const { startAngle , pixelMargin , x , y , outerRadius , innerRadius } = element; let angleMargin = pixelMargin / outerRadius; // Draw an inner border by clipping the arc and drawing a double-width border // Enlarge the clipping arc by 0.33 pixels to eliminate glitches between borders ctx.beginPath(); ctx.arc(x, y, outerRadius, startAngle - angleMargin, endAngle + angleMargin); if (innerRadius > pixelMargin) { angleMargin = pixelMargin / innerRadius; ctx.arc(x, y, innerRadius, endAngle + angleMargin, startAngle - angleMargin, true); } else { ctx.arc(x, y, pixelMargin, endAngle + _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.H, startAngle - _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.H); } ctx.closePath(); ctx.clip(); } function toRadiusCorners(value) { return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ak)(value, [ 'outerStart', 'outerEnd', 'innerStart', 'innerEnd' ]); } /** * Parse border radius from the provided options */ function parseBorderRadius$1(arc, innerRadius, outerRadius, angleDelta) { const o = toRadiusCorners(arc.options.borderRadius); const halfThickness = (outerRadius - innerRadius) / 2; const innerLimit = Math.min(halfThickness, angleDelta * innerRadius / 2); // Outer limits are complicated. We want to compute the available angular distance at // a radius of outerRadius - borderRadius because for small angular distances, this term limits. // We compute at r = outerRadius - borderRadius because this circle defines the center of the border corners. // // If the borderRadius is large, that value can become negative. // This causes the outer borders to lose their radius entirely, which is rather unexpected. To solve that, if borderRadius > outerRadius // we know that the thickness term will dominate and compute the limits at that point const computeOuterLimit = (val)=>{ const outerArcLimit = (outerRadius - Math.min(halfThickness, val)) * angleDelta / 2; return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.S)(val, 0, Math.min(halfThickness, outerArcLimit)); }; return { outerStart: computeOuterLimit(o.outerStart), outerEnd: computeOuterLimit(o.outerEnd), innerStart: (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.S)(o.innerStart, 0, innerLimit), innerEnd: (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.S)(o.innerEnd, 0, innerLimit) }; } /** * Convert (r, 𝜃) to (x, y) */ function rThetaToXY(r, theta, x, y) { return { x: x + r * Math.cos(theta), y: y + r * Math.sin(theta) }; } /** * Path the arc, respecting border radius by separating into left and right halves. * * Start End * * 1--->a--->2 Outer * / \ * 8 3 * | | * | | * 7 4 * \ / * 6<---b<---5 Inner */ function pathArc(ctx, element, offset, spacing, end, circular) { const { x , y , startAngle: start , pixelMargin , innerRadius: innerR } = element; const outerRadius = Math.max(element.outerRadius + spacing + offset - pixelMargin, 0); const innerRadius = innerR > 0 ? innerR + spacing + offset + pixelMargin : 0; let spacingOffset = 0; const alpha = end - start; if (spacing) { // When spacing is present, it is the same for all items // So we adjust the start and end angle of the arc such that // the distance is the same as it would be without the spacing const noSpacingInnerRadius = innerR > 0 ? innerR - spacing : 0; const noSpacingOuterRadius = outerRadius > 0 ? outerRadius - spacing : 0; const avNogSpacingRadius = (noSpacingInnerRadius + noSpacingOuterRadius) / 2; const adjustedAngle = avNogSpacingRadius !== 0 ? alpha * avNogSpacingRadius / (avNogSpacingRadius + spacing) : alpha; spacingOffset = (alpha - adjustedAngle) / 2; } const beta = Math.max(0.001, alpha * outerRadius - offset / _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.P) / outerRadius; const angleOffset = (alpha - beta) / 2; const startAngle = start + angleOffset + spacingOffset; const endAngle = end - angleOffset - spacingOffset; const { outerStart , outerEnd , innerStart , innerEnd } = parseBorderRadius$1(element, innerRadius, outerRadius, endAngle - startAngle); const outerStartAdjustedRadius = outerRadius - outerStart; const outerEndAdjustedRadius = outerRadius - outerEnd; const outerStartAdjustedAngle = startAngle + outerStart / outerStartAdjustedRadius; const outerEndAdjustedAngle = endAngle - outerEnd / outerEndAdjustedRadius; const innerStartAdjustedRadius = innerRadius + innerStart; const innerEndAdjustedRadius = innerRadius + innerEnd; const innerStartAdjustedAngle = startAngle + innerStart / innerStartAdjustedRadius; const innerEndAdjustedAngle = endAngle - innerEnd / innerEndAdjustedRadius; ctx.beginPath(); if (circular) { // The first arc segments from point 1 to point a to point 2 const outerMidAdjustedAngle = (outerStartAdjustedAngle + outerEndAdjustedAngle) / 2; ctx.arc(x, y, outerRadius, outerStartAdjustedAngle, outerMidAdjustedAngle); ctx.arc(x, y, outerRadius, outerMidAdjustedAngle, outerEndAdjustedAngle); // The corner segment from point 2 to point 3 if (outerEnd > 0) { const pCenter = rThetaToXY(outerEndAdjustedRadius, outerEndAdjustedAngle, x, y); ctx.arc(pCenter.x, pCenter.y, outerEnd, outerEndAdjustedAngle, endAngle + _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.H); } // The line from point 3 to point 4 const p4 = rThetaToXY(innerEndAdjustedRadius, endAngle, x, y); ctx.lineTo(p4.x, p4.y); // The corner segment from point 4 to point 5 if (innerEnd > 0) { const pCenter = rThetaToXY(innerEndAdjustedRadius, innerEndAdjustedAngle, x, y); ctx.arc(pCenter.x, pCenter.y, innerEnd, endAngle + _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.H, innerEndAdjustedAngle + Math.PI); } // The inner arc from point 5 to point b to point 6 const innerMidAdjustedAngle = (endAngle - innerEnd / innerRadius + (startAngle + innerStart / innerRadius)) / 2; ctx.arc(x, y, innerRadius, endAngle - innerEnd / innerRadius, innerMidAdjustedAngle, true); ctx.arc(x, y, innerRadius, innerMidAdjustedAngle, startAngle + innerStart / innerRadius, true); // The corner segment from point 6 to point 7 if (innerStart > 0) { const pCenter = rThetaToXY(innerStartAdjustedRadius, innerStartAdjustedAngle, x, y); ctx.arc(pCenter.x, pCenter.y, innerStart, innerStartAdjustedAngle + Math.PI, startAngle - _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.H); } // The line from point 7 to point 8 const p8 = rThetaToXY(outerStartAdjustedRadius, startAngle, x, y); ctx.lineTo(p8.x, p8.y); // The corner segment from point 8 to point 1 if (outerStart > 0) { const pCenter = rThetaToXY(outerStartAdjustedRadius, outerStartAdjustedAngle, x, y); ctx.arc(pCenter.x, pCenter.y, outerStart, startAngle - _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.H, outerStartAdjustedAngle); } } else { ctx.moveTo(x, y); const outerStartX = Math.cos(outerStartAdjustedAngle) * outerRadius + x; const outerStartY = Math.sin(outerStartAdjustedAngle) * outerRadius + y; ctx.lineTo(outerStartX, outerStartY); const outerEndX = Math.cos(outerEndAdjustedAngle) * outerRadius + x; const outerEndY = Math.sin(outerEndAdjustedAngle) * outerRadius + y; ctx.lineTo(outerEndX, outerEndY); } ctx.closePath(); } function drawArc(ctx, element, offset, spacing, circular) { const { fullCircles , startAngle , circumference } = element; let endAngle = element.endAngle; if (fullCircles) { pathArc(ctx, element, offset, spacing, endAngle, circular); for(let i = 0; i < fullCircles; ++i){ ctx.fill(); } if (!isNaN(circumference)) { endAngle = startAngle + (circumference % _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.T || _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.T); } } pathArc(ctx, element, offset, spacing, endAngle, circular); ctx.fill(); return endAngle; } function drawBorder(ctx, element, offset, spacing, circular) { const { fullCircles , startAngle , circumference , options } = element; const { borderWidth , borderJoinStyle , borderDash , borderDashOffset } = options; const inner = options.borderAlign === 'inner'; if (!borderWidth) { return; } ctx.setLineDash(borderDash || []); ctx.lineDashOffset = borderDashOffset; if (inner) { ctx.lineWidth = borderWidth * 2; ctx.lineJoin = borderJoinStyle || 'round'; } else { ctx.lineWidth = borderWidth; ctx.lineJoin = borderJoinStyle || 'bevel'; } let endAngle = element.endAngle; if (fullCircles) { pathArc(ctx, element, offset, spacing, endAngle, circular); for(let i = 0; i < fullCircles; ++i){ ctx.stroke(); } if (!isNaN(circumference)) { endAngle = startAngle + (circumference % _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.T || _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.T); } } if (inner) { clipArc(ctx, element, endAngle); } if (!fullCircles) { pathArc(ctx, element, offset, spacing, endAngle, circular); ctx.stroke(); } } class ArcElement extends Element { static id = 'arc'; static defaults = { borderAlign: 'center', borderColor: '#fff', borderDash: [], borderDashOffset: 0, borderJoinStyle: undefined, borderRadius: 0, borderWidth: 2, offset: 0, spacing: 0, angle: undefined, circular: true }; static defaultRoutes = { backgroundColor: 'backgroundColor' }; static descriptors = { _scriptable: true, _indexable: (name)=>name !== 'borderDash' }; circumference; endAngle; fullCircles; innerRadius; outerRadius; pixelMargin; startAngle; constructor(cfg){ super(); this.options = undefined; this.circumference = undefined; this.startAngle = undefined; this.endAngle = undefined; this.innerRadius = undefined; this.outerRadius = undefined; this.pixelMargin = 0; this.fullCircles = 0; if (cfg) { Object.assign(this, cfg); } } inRange(chartX, chartY, useFinalPosition) { const point = this.getProps([ 'x', 'y' ], useFinalPosition); const { angle , distance } = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.D)(point, { x: chartX, y: chartY }); const { startAngle , endAngle , innerRadius , outerRadius , circumference } = this.getProps([ 'startAngle', 'endAngle', 'innerRadius', 'outerRadius', 'circumference' ], useFinalPosition); const rAdjust = (this.options.spacing + this.options.borderWidth) / 2; const _circumference = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(circumference, endAngle - startAngle); const betweenAngles = _circumference >= _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.T || (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.p)(angle, startAngle, endAngle); const withinRadius = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aj)(distance, innerRadius + rAdjust, outerRadius + rAdjust); return betweenAngles && withinRadius; } getCenterPoint(useFinalPosition) { const { x , y , startAngle , endAngle , innerRadius , outerRadius } = this.getProps([ 'x', 'y', 'startAngle', 'endAngle', 'innerRadius', 'outerRadius' ], useFinalPosition); const { offset , spacing } = this.options; const halfAngle = (startAngle + endAngle) / 2; const halfRadius = (innerRadius + outerRadius + spacing + offset) / 2; return { x: x + Math.cos(halfAngle) * halfRadius, y: y + Math.sin(halfAngle) * halfRadius }; } tooltipPosition(useFinalPosition) { return this.getCenterPoint(useFinalPosition); } draw(ctx) { const { options , circumference } = this; const offset = (options.offset || 0) / 4; const spacing = (options.spacing || 0) / 2; const circular = options.circular; this.pixelMargin = options.borderAlign === 'inner' ? 0.33 : 0; this.fullCircles = circumference > _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.T ? Math.floor(circumference / _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.T) : 0; if (circumference === 0 || this.innerRadius < 0 || this.outerRadius < 0) { return; } ctx.save(); const halfAngle = (this.startAngle + this.endAngle) / 2; ctx.translate(Math.cos(halfAngle) * offset, Math.sin(halfAngle) * offset); const fix = 1 - Math.sin(Math.min(_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.P, circumference || 0)); const radiusOffset = offset * fix; ctx.fillStyle = options.backgroundColor; ctx.strokeStyle = options.borderColor; drawArc(ctx, this, radiusOffset, spacing, circular); drawBorder(ctx, this, radiusOffset, spacing, circular); ctx.restore(); } } function setStyle(ctx, options, style = options) { ctx.lineCap = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(style.borderCapStyle, options.borderCapStyle); ctx.setLineDash((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(style.borderDash, options.borderDash)); ctx.lineDashOffset = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(style.borderDashOffset, options.borderDashOffset); ctx.lineJoin = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(style.borderJoinStyle, options.borderJoinStyle); ctx.lineWidth = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(style.borderWidth, options.borderWidth); ctx.strokeStyle = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(style.borderColor, options.borderColor); } function lineTo(ctx, previous, target) { ctx.lineTo(target.x, target.y); } function getLineMethod(options) { if (options.stepped) { return _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ar; } if (options.tension || options.cubicInterpolationMode === 'monotone') { return _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.as; } return lineTo; } function pathVars(points, segment, params = {}) { const count = points.length; const { start: paramsStart = 0 , end: paramsEnd = count - 1 } = params; const { start: segmentStart , end: segmentEnd } = segment; const start = Math.max(paramsStart, segmentStart); const end = Math.min(paramsEnd, segmentEnd); const outside = paramsStart < segmentStart && paramsEnd < segmentStart || paramsStart > segmentEnd && paramsEnd > segmentEnd; return { count, start, loop: segment.loop, ilen: end < start && !outside ? count + end - start : end - start }; } function pathSegment(ctx, line, segment, params) { const { points , options } = line; const { count , start , loop , ilen } = pathVars(points, segment, params); const lineMethod = getLineMethod(options); let { move =true , reverse } = params || {}; let i, point, prev; for(i = 0; i <= ilen; ++i){ point = points[(start + (reverse ? ilen - i : i)) % count]; if (point.skip) { continue; } else if (move) { ctx.moveTo(point.x, point.y); move = false; } else { lineMethod(ctx, prev, point, reverse, options.stepped); } prev = point; } if (loop) { point = points[(start + (reverse ? ilen : 0)) % count]; lineMethod(ctx, prev, point, reverse, options.stepped); } return !!loop; } function fastPathSegment(ctx, line, segment, params) { const points = line.points; const { count , start , ilen } = pathVars(points, segment, params); const { move =true , reverse } = params || {}; let avgX = 0; let countX = 0; let i, point, prevX, minY, maxY, lastY; const pointIndex = (index)=>(start + (reverse ? ilen - index : index)) % count; const drawX = ()=>{ if (minY !== maxY) { ctx.lineTo(avgX, maxY); ctx.lineTo(avgX, minY); ctx.lineTo(avgX, lastY); } }; if (move) { point = points[pointIndex(0)]; ctx.moveTo(point.x, point.y); } for(i = 0; i <= ilen; ++i){ point = points[pointIndex(i)]; if (point.skip) { continue; } const x = point.x; const y = point.y; const truncX = x | 0; if (truncX === prevX) { if (y < minY) { minY = y; } else if (y > maxY) { maxY = y; } avgX = (countX * avgX + x) / ++countX; } else { drawX(); ctx.lineTo(x, y); prevX = truncX; countX = 0; minY = maxY = y; } lastY = y; } drawX(); } function _getSegmentMethod(line) { const opts = line.options; const borderDash = opts.borderDash && opts.borderDash.length; const useFastPath = !line._decimated && !line._loop && !opts.tension && opts.cubicInterpolationMode !== 'monotone' && !opts.stepped && !borderDash; return useFastPath ? fastPathSegment : pathSegment; } function _getInterpolationMethod(options) { if (options.stepped) { return _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ao; } if (options.tension || options.cubicInterpolationMode === 'monotone') { return _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ap; } return _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aq; } function strokePathWithCache(ctx, line, start, count) { let path = line._path; if (!path) { path = line._path = new Path2D(); if (line.path(path, start, count)) { path.closePath(); } } setStyle(ctx, line.options); ctx.stroke(path); } function strokePathDirect(ctx, line, start, count) { const { segments , options } = line; const segmentMethod = _getSegmentMethod(line); for (const segment of segments){ setStyle(ctx, options, segment.style); ctx.beginPath(); if (segmentMethod(ctx, line, segment, { start, end: start + count - 1 })) { ctx.closePath(); } ctx.stroke(); } } const usePath2D = typeof Path2D === 'function'; function draw(ctx, line, start, count) { if (usePath2D && !line.options.segment) { strokePathWithCache(ctx, line, start, count); } else { strokePathDirect(ctx, line, start, count); } } class LineElement extends Element { static id = 'line'; static defaults = { borderCapStyle: 'butt', borderDash: [], borderDashOffset: 0, borderJoinStyle: 'miter', borderWidth: 3, capBezierPoints: true, cubicInterpolationMode: 'default', fill: false, spanGaps: false, stepped: false, tension: 0 }; static defaultRoutes = { backgroundColor: 'backgroundColor', borderColor: 'borderColor' }; static descriptors = { _scriptable: true, _indexable: (name)=>name !== 'borderDash' && name !== 'fill' }; constructor(cfg){ super(); this.animated = true; this.options = undefined; this._chart = undefined; this._loop = undefined; this._fullLoop = undefined; this._path = undefined; this._points = undefined; this._segments = undefined; this._decimated = false; this._pointsUpdated = false; this._datasetIndex = undefined; if (cfg) { Object.assign(this, cfg); } } updateControlPoints(chartArea, indexAxis) { const options = this.options; if ((options.tension || options.cubicInterpolationMode === 'monotone') && !options.stepped && !this._pointsUpdated) { const loop = options.spanGaps ? this._loop : this._fullLoop; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.al)(this._points, options, chartArea, loop, indexAxis); this._pointsUpdated = true; } } set points(points) { this._points = points; delete this._segments; delete this._path; this._pointsUpdated = false; } get points() { return this._points; } get segments() { return this._segments || (this._segments = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.am)(this, this.options.segment)); } first() { const segments = this.segments; const points = this.points; return segments.length && points[segments[0].start]; } last() { const segments = this.segments; const points = this.points; const count = segments.length; return count && points[segments[count - 1].end]; } interpolate(point, property) { const options = this.options; const value = point[property]; const points = this.points; const segments = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.an)(this, { property, start: value, end: value }); if (!segments.length) { return; } const result = []; const _interpolate = _getInterpolationMethod(options); let i, ilen; for(i = 0, ilen = segments.length; i < ilen; ++i){ const { start , end } = segments[i]; const p1 = points[start]; const p2 = points[end]; if (p1 === p2) { result.push(p1); continue; } const t = Math.abs((value - p1[property]) / (p2[property] - p1[property])); const interpolated = _interpolate(p1, p2, t, options.stepped); interpolated[property] = point[property]; result.push(interpolated); } return result.length === 1 ? result[0] : result; } pathSegment(ctx, segment, params) { const segmentMethod = _getSegmentMethod(this); return segmentMethod(ctx, this, segment, params); } path(ctx, start, count) { const segments = this.segments; const segmentMethod = _getSegmentMethod(this); let loop = this._loop; start = start || 0; count = count || this.points.length - start; for (const segment of segments){ loop &= segmentMethod(ctx, this, segment, { start, end: start + count - 1 }); } return !!loop; } draw(ctx, chartArea, start, count) { const options = this.options || {}; const points = this.points || []; if (points.length && options.borderWidth) { ctx.save(); draw(ctx, this, start, count); ctx.restore(); } if (this.animated) { this._pointsUpdated = false; this._path = undefined; } } } function inRange$1(el, pos, axis, useFinalPosition) { const options = el.options; const { [axis]: value } = el.getProps([ axis ], useFinalPosition); return Math.abs(pos - value) < options.radius + options.hitRadius; } class PointElement extends Element { static id = 'point'; parsed; skip; stop; /** * @type {any} */ static defaults = { borderWidth: 1, hitRadius: 1, hoverBorderWidth: 1, hoverRadius: 4, pointStyle: 'circle', radius: 3, rotation: 0 }; /** * @type {any} */ static defaultRoutes = { backgroundColor: 'backgroundColor', borderColor: 'borderColor' }; constructor(cfg){ super(); this.options = undefined; this.parsed = undefined; this.skip = undefined; this.stop = undefined; if (cfg) { Object.assign(this, cfg); } } inRange(mouseX, mouseY, useFinalPosition) { const options = this.options; const { x , y } = this.getProps([ 'x', 'y' ], useFinalPosition); return Math.pow(mouseX - x, 2) + Math.pow(mouseY - y, 2) < Math.pow(options.hitRadius + options.radius, 2); } inXRange(mouseX, useFinalPosition) { return inRange$1(this, mouseX, 'x', useFinalPosition); } inYRange(mouseY, useFinalPosition) { return inRange$1(this, mouseY, 'y', useFinalPosition); } getCenterPoint(useFinalPosition) { const { x , y } = this.getProps([ 'x', 'y' ], useFinalPosition); return { x, y }; } size(options) { options = options || this.options || {}; let radius = options.radius || 0; radius = Math.max(radius, radius && options.hoverRadius || 0); const borderWidth = radius && options.borderWidth || 0; return (radius + borderWidth) * 2; } draw(ctx, area) { const options = this.options; if (this.skip || options.radius < 0.1 || !(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.C)(this, area, this.size(options) / 2)) { return; } ctx.strokeStyle = options.borderColor; ctx.lineWidth = options.borderWidth; ctx.fillStyle = options.backgroundColor; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.at)(ctx, options, this.x, this.y); } getRange() { const options = this.options || {}; // @ts-expect-error Fallbacks should never be hit in practice return options.radius + options.hitRadius; } } function getBarBounds(bar, useFinalPosition) { const { x , y , base , width , height } = bar.getProps([ 'x', 'y', 'base', 'width', 'height' ], useFinalPosition); let left, right, top, bottom, half; if (bar.horizontal) { half = height / 2; left = Math.min(x, base); right = Math.max(x, base); top = y - half; bottom = y + half; } else { half = width / 2; left = x - half; right = x + half; top = Math.min(y, base); bottom = Math.max(y, base); } return { left, top, right, bottom }; } function skipOrLimit(skip, value, min, max) { return skip ? 0 : (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.S)(value, min, max); } function parseBorderWidth(bar, maxW, maxH) { const value = bar.options.borderWidth; const skip = bar.borderSkipped; const o = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.av)(value); return { t: skipOrLimit(skip.top, o.top, 0, maxH), r: skipOrLimit(skip.right, o.right, 0, maxW), b: skipOrLimit(skip.bottom, o.bottom, 0, maxH), l: skipOrLimit(skip.left, o.left, 0, maxW) }; } function parseBorderRadius(bar, maxW, maxH) { const { enableBorderRadius } = bar.getProps([ 'enableBorderRadius' ]); const value = bar.options.borderRadius; const o = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aw)(value); const maxR = Math.min(maxW, maxH); const skip = bar.borderSkipped; const enableBorder = enableBorderRadius || (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(value); return { topLeft: skipOrLimit(!enableBorder || skip.top || skip.left, o.topLeft, 0, maxR), topRight: skipOrLimit(!enableBorder || skip.top || skip.right, o.topRight, 0, maxR), bottomLeft: skipOrLimit(!enableBorder || skip.bottom || skip.left, o.bottomLeft, 0, maxR), bottomRight: skipOrLimit(!enableBorder || skip.bottom || skip.right, o.bottomRight, 0, maxR) }; } function boundingRects(bar) { const bounds = getBarBounds(bar); const width = bounds.right - bounds.left; const height = bounds.bottom - bounds.top; const border = parseBorderWidth(bar, width / 2, height / 2); const radius = parseBorderRadius(bar, width / 2, height / 2); return { outer: { x: bounds.left, y: bounds.top, w: width, h: height, radius }, inner: { x: bounds.left + border.l, y: bounds.top + border.t, w: width - border.l - border.r, h: height - border.t - border.b, radius: { topLeft: Math.max(0, radius.topLeft - Math.max(border.t, border.l)), topRight: Math.max(0, radius.topRight - Math.max(border.t, border.r)), bottomLeft: Math.max(0, radius.bottomLeft - Math.max(border.b, border.l)), bottomRight: Math.max(0, radius.bottomRight - Math.max(border.b, border.r)) } } }; } function inRange(bar, x, y, useFinalPosition) { const skipX = x === null; const skipY = y === null; const skipBoth = skipX && skipY; const bounds = bar && !skipBoth && getBarBounds(bar, useFinalPosition); return bounds && (skipX || (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aj)(x, bounds.left, bounds.right)) && (skipY || (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aj)(y, bounds.top, bounds.bottom)); } function hasRadius(radius) { return radius.topLeft || radius.topRight || radius.bottomLeft || radius.bottomRight; } function addNormalRectPath(ctx, rect) { ctx.rect(rect.x, rect.y, rect.w, rect.h); } function inflateRect(rect, amount, refRect = {}) { const x = rect.x !== refRect.x ? -amount : 0; const y = rect.y !== refRect.y ? -amount : 0; const w = (rect.x + rect.w !== refRect.x + refRect.w ? amount : 0) - x; const h = (rect.y + rect.h !== refRect.y + refRect.h ? amount : 0) - y; return { x: rect.x + x, y: rect.y + y, w: rect.w + w, h: rect.h + h, radius: rect.radius }; } class BarElement extends Element { static id = 'bar'; static defaults = { borderSkipped: 'start', borderWidth: 0, borderRadius: 0, inflateAmount: 'auto', pointStyle: undefined }; static defaultRoutes = { backgroundColor: 'backgroundColor', borderColor: 'borderColor' }; constructor(cfg){ super(); this.options = undefined; this.horizontal = undefined; this.base = undefined; this.width = undefined; this.height = undefined; this.inflateAmount = undefined; if (cfg) { Object.assign(this, cfg); } } draw(ctx) { const { inflateAmount , options: { borderColor , backgroundColor } } = this; const { inner , outer } = boundingRects(this); const addRectPath = hasRadius(outer.radius) ? _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.au : addNormalRectPath; ctx.save(); if (outer.w !== inner.w || outer.h !== inner.h) { ctx.beginPath(); addRectPath(ctx, inflateRect(outer, inflateAmount, inner)); ctx.clip(); addRectPath(ctx, inflateRect(inner, -inflateAmount, outer)); ctx.fillStyle = borderColor; ctx.fill('evenodd'); } ctx.beginPath(); addRectPath(ctx, inflateRect(inner, inflateAmount)); ctx.fillStyle = backgroundColor; ctx.fill(); ctx.restore(); } inRange(mouseX, mouseY, useFinalPosition) { return inRange(this, mouseX, mouseY, useFinalPosition); } inXRange(mouseX, useFinalPosition) { return inRange(this, mouseX, null, useFinalPosition); } inYRange(mouseY, useFinalPosition) { return inRange(this, null, mouseY, useFinalPosition); } getCenterPoint(useFinalPosition) { const { x , y , base , horizontal } = this.getProps([ 'x', 'y', 'base', 'horizontal' ], useFinalPosition); return { x: horizontal ? (x + base) / 2 : x, y: horizontal ? y : (y + base) / 2 }; } getRange(axis) { return axis === 'x' ? this.width / 2 : this.height / 2; } } var elements = /*#__PURE__*/Object.freeze({ __proto__: null, ArcElement: ArcElement, BarElement: BarElement, LineElement: LineElement, PointElement: PointElement }); const BORDER_COLORS = [ 'rgb(54, 162, 235)', 'rgb(255, 99, 132)', 'rgb(255, 159, 64)', 'rgb(255, 205, 86)', 'rgb(75, 192, 192)', 'rgb(153, 102, 255)', 'rgb(201, 203, 207)' // grey ]; // Border colors with 50% transparency const BACKGROUND_COLORS = /* #__PURE__ */ BORDER_COLORS.map((color)=>color.replace('rgb(', 'rgba(').replace(')', ', 0.5)')); function getBorderColor(i) { return BORDER_COLORS[i % BORDER_COLORS.length]; } function getBackgroundColor(i) { return BACKGROUND_COLORS[i % BACKGROUND_COLORS.length]; } function colorizeDefaultDataset(dataset, i) { dataset.borderColor = getBorderColor(i); dataset.backgroundColor = getBackgroundColor(i); return ++i; } function colorizeDoughnutDataset(dataset, i) { dataset.backgroundColor = dataset.data.map(()=>getBorderColor(i++)); return i; } function colorizePolarAreaDataset(dataset, i) { dataset.backgroundColor = dataset.data.map(()=>getBackgroundColor(i++)); return i; } function getColorizer(chart) { let i = 0; return (dataset, datasetIndex)=>{ const controller = chart.getDatasetMeta(datasetIndex).controller; if (controller instanceof DoughnutController) { i = colorizeDoughnutDataset(dataset, i); } else if (controller instanceof PolarAreaController) { i = colorizePolarAreaDataset(dataset, i); } else if (controller) { i = colorizeDefaultDataset(dataset, i); } }; } function containsColorsDefinitions(descriptors) { let k; for(k in descriptors){ if (descriptors[k].borderColor || descriptors[k].backgroundColor) { return true; } } return false; } function containsColorsDefinition(descriptor) { return descriptor && (descriptor.borderColor || descriptor.backgroundColor); } var plugin_colors = { id: 'colors', defaults: { enabled: true, forceOverride: false }, beforeLayout (chart, _args, options) { if (!options.enabled) { return; } const { data: { datasets } , options: chartOptions } = chart.config; const { elements } = chartOptions; if (!options.forceOverride && (containsColorsDefinitions(datasets) || containsColorsDefinition(chartOptions) || elements && containsColorsDefinitions(elements))) { return; } const colorizer = getColorizer(chart); datasets.forEach(colorizer); } }; function lttbDecimation(data, start, count, availableWidth, options) { const samples = options.samples || availableWidth; if (samples >= count) { return data.slice(start, start + count); } const decimated = []; const bucketWidth = (count - 2) / (samples - 2); let sampledIndex = 0; const endIndex = start + count - 1; let a = start; let i, maxAreaPoint, maxArea, area, nextA; decimated[sampledIndex++] = data[a]; for(i = 0; i < samples - 2; i++){ let avgX = 0; let avgY = 0; let j; const avgRangeStart = Math.floor((i + 1) * bucketWidth) + 1 + start; const avgRangeEnd = Math.min(Math.floor((i + 2) * bucketWidth) + 1, count) + start; const avgRangeLength = avgRangeEnd - avgRangeStart; for(j = avgRangeStart; j < avgRangeEnd; j++){ avgX += data[j].x; avgY += data[j].y; } avgX /= avgRangeLength; avgY /= avgRangeLength; const rangeOffs = Math.floor(i * bucketWidth) + 1 + start; const rangeTo = Math.min(Math.floor((i + 1) * bucketWidth) + 1, count) + start; const { x: pointAx , y: pointAy } = data[a]; maxArea = area = -1; for(j = rangeOffs; j < rangeTo; j++){ area = 0.5 * Math.abs((pointAx - avgX) * (data[j].y - pointAy) - (pointAx - data[j].x) * (avgY - pointAy)); if (area > maxArea) { maxArea = area; maxAreaPoint = data[j]; nextA = j; } } decimated[sampledIndex++] = maxAreaPoint; a = nextA; } decimated[sampledIndex++] = data[endIndex]; return decimated; } function minMaxDecimation(data, start, count, availableWidth) { let avgX = 0; let countX = 0; let i, point, x, y, prevX, minIndex, maxIndex, startIndex, minY, maxY; const decimated = []; const endIndex = start + count - 1; const xMin = data[start].x; const xMax = data[endIndex].x; const dx = xMax - xMin; for(i = start; i < start + count; ++i){ point = data[i]; x = (point.x - xMin) / dx * availableWidth; y = point.y; const truncX = x | 0; if (truncX === prevX) { if (y < minY) { minY = y; minIndex = i; } else if (y > maxY) { maxY = y; maxIndex = i; } avgX = (countX * avgX + point.x) / ++countX; } else { const lastIndex = i - 1; if (!(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(minIndex) && !(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(maxIndex)) { const intermediateIndex1 = Math.min(minIndex, maxIndex); const intermediateIndex2 = Math.max(minIndex, maxIndex); if (intermediateIndex1 !== startIndex && intermediateIndex1 !== lastIndex) { decimated.push({ ...data[intermediateIndex1], x: avgX }); } if (intermediateIndex2 !== startIndex && intermediateIndex2 !== lastIndex) { decimated.push({ ...data[intermediateIndex2], x: avgX }); } } if (i > 0 && lastIndex !== startIndex) { decimated.push(data[lastIndex]); } decimated.push(point); prevX = truncX; countX = 0; minY = maxY = y; minIndex = maxIndex = startIndex = i; } } return decimated; } function cleanDecimatedDataset(dataset) { if (dataset._decimated) { const data = dataset._data; delete dataset._decimated; delete dataset._data; Object.defineProperty(dataset, 'data', { configurable: true, enumerable: true, writable: true, value: data }); } } function cleanDecimatedData(chart) { chart.data.datasets.forEach((dataset)=>{ cleanDecimatedDataset(dataset); }); } function getStartAndCountOfVisiblePointsSimplified(meta, points) { const pointCount = points.length; let start = 0; let count; const { iScale } = meta; const { min , max , minDefined , maxDefined } = iScale.getUserBounds(); if (minDefined) { start = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.S)((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.B)(points, iScale.axis, min).lo, 0, pointCount - 1); } if (maxDefined) { count = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.S)((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.B)(points, iScale.axis, max).hi + 1, start, pointCount) - start; } else { count = pointCount - start; } return { start, count }; } var plugin_decimation = { id: 'decimation', defaults: { algorithm: 'min-max', enabled: false }, beforeElementsUpdate: (chart, args, options)=>{ if (!options.enabled) { cleanDecimatedData(chart); return; } const availableWidth = chart.width; chart.data.datasets.forEach((dataset, datasetIndex)=>{ const { _data , indexAxis } = dataset; const meta = chart.getDatasetMeta(datasetIndex); const data = _data || dataset.data; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a)([ indexAxis, chart.options.indexAxis ]) === 'y') { return; } if (!meta.controller.supportsDecimation) { return; } const xAxis = chart.scales[meta.xAxisID]; if (xAxis.type !== 'linear' && xAxis.type !== 'time') { return; } if (chart.options.parsing) { return; } let { start , count } = getStartAndCountOfVisiblePointsSimplified(meta, data); const threshold = options.threshold || 4 * availableWidth; if (count <= threshold) { cleanDecimatedDataset(dataset); return; } if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(_data)) { dataset._data = data; delete dataset.data; Object.defineProperty(dataset, 'data', { configurable: true, enumerable: true, get: function() { return this._decimated; }, set: function(d) { this._data = d; } }); } let decimated; switch(options.algorithm){ case 'lttb': decimated = lttbDecimation(data, start, count, availableWidth, options); break; case 'min-max': decimated = minMaxDecimation(data, start, count, availableWidth); break; default: throw new Error(`Unsupported decimation algorithm '${options.algorithm}'`); } dataset._decimated = decimated; }); }, destroy (chart) { cleanDecimatedData(chart); } }; function _segments(line, target, property) { const segments = line.segments; const points = line.points; const tpoints = target.points; const parts = []; for (const segment of segments){ let { start , end } = segment; end = _findSegmentEnd(start, end, points); const bounds = _getBounds(property, points[start], points[end], segment.loop); if (!target.segments) { parts.push({ source: segment, target: bounds, start: points[start], end: points[end] }); continue; } const targetSegments = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.an)(target, bounds); for (const tgt of targetSegments){ const subBounds = _getBounds(property, tpoints[tgt.start], tpoints[tgt.end], tgt.loop); const fillSources = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ax)(segment, points, subBounds); for (const fillSource of fillSources){ parts.push({ source: fillSource, target: tgt, start: { [property]: _getEdge(bounds, subBounds, 'start', Math.max) }, end: { [property]: _getEdge(bounds, subBounds, 'end', Math.min) } }); } } } return parts; } function _getBounds(property, first, last, loop) { if (loop) { return; } let start = first[property]; let end = last[property]; if (property === 'angle') { start = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ay)(start); end = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ay)(end); } return { property, start, end }; } function _pointsFromSegments(boundary, line) { const { x =null , y =null } = boundary || {}; const linePoints = line.points; const points = []; line.segments.forEach(({ start , end })=>{ end = _findSegmentEnd(start, end, linePoints); const first = linePoints[start]; const last = linePoints[end]; if (y !== null) { points.push({ x: first.x, y }); points.push({ x: last.x, y }); } else if (x !== null) { points.push({ x, y: first.y }); points.push({ x, y: last.y }); } }); return points; } function _findSegmentEnd(start, end, points) { for(; end > start; end--){ const point = points[end]; if (!isNaN(point.x) && !isNaN(point.y)) { break; } } return end; } function _getEdge(a, b, prop, fn) { if (a && b) { return fn(a[prop], b[prop]); } return a ? a[prop] : b ? b[prop] : 0; } function _createBoundaryLine(boundary, line) { let points = []; let _loop = false; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.b)(boundary)) { _loop = true; points = boundary; } else { points = _pointsFromSegments(boundary, line); } return points.length ? new LineElement({ points, options: { tension: 0 }, _loop, _fullLoop: _loop }) : null; } function _shouldApplyFill(source) { return source && source.fill !== false; } function _resolveTarget(sources, index, propagate) { const source = sources[index]; let fill = source.fill; const visited = [ index ]; let target; if (!propagate) { return fill; } while(fill !== false && visited.indexOf(fill) === -1){ if (!(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(fill)) { return fill; } target = sources[fill]; if (!target) { return false; } if (target.visible) { return fill; } visited.push(fill); fill = target.fill; } return false; } function _decodeFill(line, index, count) { const fill = parseFillOption(line); if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(fill)) { return isNaN(fill.value) ? false : fill; } let target = parseFloat(fill); if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(target) && Math.floor(target) === target) { return decodeTargetIndex(fill[0], index, target, count); } return [ 'origin', 'start', 'end', 'stack', 'shape' ].indexOf(fill) >= 0 && fill; } function decodeTargetIndex(firstCh, index, target, count) { if (firstCh === '-' || firstCh === '+') { target = index + target; } if (target === index || target < 0 || target >= count) { return false; } return target; } function _getTargetPixel(fill, scale) { let pixel = null; if (fill === 'start') { pixel = scale.bottom; } else if (fill === 'end') { pixel = scale.top; } else if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(fill)) { pixel = scale.getPixelForValue(fill.value); } else if (scale.getBasePixel) { pixel = scale.getBasePixel(); } return pixel; } function _getTargetValue(fill, scale, startValue) { let value; if (fill === 'start') { value = startValue; } else if (fill === 'end') { value = scale.options.reverse ? scale.min : scale.max; } else if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(fill)) { value = fill.value; } else { value = scale.getBaseValue(); } return value; } function parseFillOption(line) { const options = line.options; const fillOption = options.fill; let fill = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(fillOption && fillOption.target, fillOption); if (fill === undefined) { fill = !!options.backgroundColor; } if (fill === false || fill === null) { return false; } if (fill === true) { return 'origin'; } return fill; } function _buildStackLine(source) { const { scale , index , line } = source; const points = []; const segments = line.segments; const sourcePoints = line.points; const linesBelow = getLinesBelow(scale, index); linesBelow.push(_createBoundaryLine({ x: null, y: scale.bottom }, line)); for(let i = 0; i < segments.length; i++){ const segment = segments[i]; for(let j = segment.start; j <= segment.end; j++){ addPointsBelow(points, sourcePoints[j], linesBelow); } } return new LineElement({ points, options: {} }); } function getLinesBelow(scale, index) { const below = []; const metas = scale.getMatchingVisibleMetas('line'); for(let i = 0; i < metas.length; i++){ const meta = metas[i]; if (meta.index === index) { break; } if (!meta.hidden) { below.unshift(meta.dataset); } } return below; } function addPointsBelow(points, sourcePoint, linesBelow) { const postponed = []; for(let j = 0; j < linesBelow.length; j++){ const line = linesBelow[j]; const { first , last , point } = findPoint(line, sourcePoint, 'x'); if (!point || first && last) { continue; } if (first) { postponed.unshift(point); } else { points.push(point); if (!last) { break; } } } points.push(...postponed); } function findPoint(line, sourcePoint, property) { const point = line.interpolate(sourcePoint, property); if (!point) { return {}; } const pointValue = point[property]; const segments = line.segments; const linePoints = line.points; let first = false; let last = false; for(let i = 0; i < segments.length; i++){ const segment = segments[i]; const firstValue = linePoints[segment.start][property]; const lastValue = linePoints[segment.end][property]; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aj)(pointValue, firstValue, lastValue)) { first = pointValue === firstValue; last = pointValue === lastValue; break; } } return { first, last, point }; } class simpleArc { constructor(opts){ this.x = opts.x; this.y = opts.y; this.radius = opts.radius; } pathSegment(ctx, bounds, opts) { const { x , y , radius } = this; bounds = bounds || { start: 0, end: _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.T }; ctx.arc(x, y, radius, bounds.end, bounds.start, true); return !opts.bounds; } interpolate(point) { const { x , y , radius } = this; const angle = point.angle; return { x: x + Math.cos(angle) * radius, y: y + Math.sin(angle) * radius, angle }; } } function _getTarget(source) { const { chart , fill , line } = source; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(fill)) { return getLineByIndex(chart, fill); } if (fill === 'stack') { return _buildStackLine(source); } if (fill === 'shape') { return true; } const boundary = computeBoundary(source); if (boundary instanceof simpleArc) { return boundary; } return _createBoundaryLine(boundary, line); } function getLineByIndex(chart, index) { const meta = chart.getDatasetMeta(index); const visible = meta && chart.isDatasetVisible(index); return visible ? meta.dataset : null; } function computeBoundary(source) { const scale = source.scale || {}; if (scale.getPointPositionForValue) { return computeCircularBoundary(source); } return computeLinearBoundary(source); } function computeLinearBoundary(source) { const { scale ={} , fill } = source; const pixel = _getTargetPixel(fill, scale); if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(pixel)) { const horizontal = scale.isHorizontal(); return { x: horizontal ? pixel : null, y: horizontal ? null : pixel }; } return null; } function computeCircularBoundary(source) { const { scale , fill } = source; const options = scale.options; const length = scale.getLabels().length; const start = options.reverse ? scale.max : scale.min; const value = _getTargetValue(fill, scale, start); const target = []; if (options.grid.circular) { const center = scale.getPointPositionForValue(0, start); return new simpleArc({ x: center.x, y: center.y, radius: scale.getDistanceFromCenterForValue(value) }); } for(let i = 0; i < length; ++i){ target.push(scale.getPointPositionForValue(i, value)); } return target; } function _drawfill(ctx, source, area) { const target = _getTarget(source); const { line , scale , axis } = source; const lineOpts = line.options; const fillOption = lineOpts.fill; const color = lineOpts.backgroundColor; const { above =color , below =color } = fillOption || {}; if (target && line.points.length) { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Y)(ctx, area); doFill(ctx, { line, target, above, below, area, scale, axis }); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.$)(ctx); } } function doFill(ctx, cfg) { const { line , target , above , below , area , scale } = cfg; const property = line._loop ? 'angle' : cfg.axis; ctx.save(); if (property === 'x' && below !== above) { clipVertical(ctx, target, area.top); fill(ctx, { line, target, color: above, scale, property }); ctx.restore(); ctx.save(); clipVertical(ctx, target, area.bottom); } fill(ctx, { line, target, color: below, scale, property }); ctx.restore(); } function clipVertical(ctx, target, clipY) { const { segments , points } = target; let first = true; let lineLoop = false; ctx.beginPath(); for (const segment of segments){ const { start , end } = segment; const firstPoint = points[start]; const lastPoint = points[_findSegmentEnd(start, end, points)]; if (first) { ctx.moveTo(firstPoint.x, firstPoint.y); first = false; } else { ctx.lineTo(firstPoint.x, clipY); ctx.lineTo(firstPoint.x, firstPoint.y); } lineLoop = !!target.pathSegment(ctx, segment, { move: lineLoop }); if (lineLoop) { ctx.closePath(); } else { ctx.lineTo(lastPoint.x, clipY); } } ctx.lineTo(target.first().x, clipY); ctx.closePath(); ctx.clip(); } function fill(ctx, cfg) { const { line , target , property , color , scale } = cfg; const segments = _segments(line, target, property); for (const { source: src , target: tgt , start , end } of segments){ const { style: { backgroundColor =color } = {} } = src; const notShape = target !== true; ctx.save(); ctx.fillStyle = backgroundColor; clipBounds(ctx, scale, notShape && _getBounds(property, start, end)); ctx.beginPath(); const lineLoop = !!line.pathSegment(ctx, src); let loop; if (notShape) { if (lineLoop) { ctx.closePath(); } else { interpolatedLineTo(ctx, target, end, property); } const targetLoop = !!target.pathSegment(ctx, tgt, { move: lineLoop, reverse: true }); loop = lineLoop && targetLoop; if (!loop) { interpolatedLineTo(ctx, target, start, property); } } ctx.closePath(); ctx.fill(loop ? 'evenodd' : 'nonzero'); ctx.restore(); } } function clipBounds(ctx, scale, bounds) { const { top , bottom } = scale.chart.chartArea; const { property , start , end } = bounds || {}; if (property === 'x') { ctx.beginPath(); ctx.rect(start, top, end - start, bottom - top); ctx.clip(); } } function interpolatedLineTo(ctx, target, point, property) { const interpolatedPoint = target.interpolate(point, property); if (interpolatedPoint) { ctx.lineTo(interpolatedPoint.x, interpolatedPoint.y); } } var index = { id: 'filler', afterDatasetsUpdate (chart, _args, options) { const count = (chart.data.datasets || []).length; const sources = []; let meta, i, line, source; for(i = 0; i < count; ++i){ meta = chart.getDatasetMeta(i); line = meta.dataset; source = null; if (line && line.options && line instanceof LineElement) { source = { visible: chart.isDatasetVisible(i), index: i, fill: _decodeFill(line, i, count), chart, axis: meta.controller.options.indexAxis, scale: meta.vScale, line }; } meta.$filler = source; sources.push(source); } for(i = 0; i < count; ++i){ source = sources[i]; if (!source || source.fill === false) { continue; } source.fill = _resolveTarget(sources, i, options.propagate); } }, beforeDraw (chart, _args, options) { const draw = options.drawTime === 'beforeDraw'; const metasets = chart.getSortedVisibleDatasetMetas(); const area = chart.chartArea; for(let i = metasets.length - 1; i >= 0; --i){ const source = metasets[i].$filler; if (!source) { continue; } source.line.updateControlPoints(area, source.axis); if (draw && source.fill) { _drawfill(chart.ctx, source, area); } } }, beforeDatasetsDraw (chart, _args, options) { if (options.drawTime !== 'beforeDatasetsDraw') { return; } const metasets = chart.getSortedVisibleDatasetMetas(); for(let i = metasets.length - 1; i >= 0; --i){ const source = metasets[i].$filler; if (_shouldApplyFill(source)) { _drawfill(chart.ctx, source, chart.chartArea); } } }, beforeDatasetDraw (chart, args, options) { const source = args.meta.$filler; if (!_shouldApplyFill(source) || options.drawTime !== 'beforeDatasetDraw') { return; } _drawfill(chart.ctx, source, chart.chartArea); }, defaults: { propagate: true, drawTime: 'beforeDatasetDraw' } }; const getBoxSize = (labelOpts, fontSize)=>{ let { boxHeight =fontSize , boxWidth =fontSize } = labelOpts; if (labelOpts.usePointStyle) { boxHeight = Math.min(boxHeight, fontSize); boxWidth = labelOpts.pointStyleWidth || Math.min(boxWidth, fontSize); } return { boxWidth, boxHeight, itemHeight: Math.max(fontSize, boxHeight) }; }; const itemsEqual = (a, b)=>a !== null && b !== null && a.datasetIndex === b.datasetIndex && a.index === b.index; class Legend extends Element { constructor(config){ super(); this._added = false; this.legendHitBoxes = []; this._hoveredItem = null; this.doughnutMode = false; this.chart = config.chart; this.options = config.options; this.ctx = config.ctx; this.legendItems = undefined; this.columnSizes = undefined; this.lineWidths = undefined; this.maxHeight = undefined; this.maxWidth = undefined; this.top = undefined; this.bottom = undefined; this.left = undefined; this.right = undefined; this.height = undefined; this.width = undefined; this._margins = undefined; this.position = undefined; this.weight = undefined; this.fullSize = undefined; } update(maxWidth, maxHeight, margins) { this.maxWidth = maxWidth; this.maxHeight = maxHeight; this._margins = margins; this.setDimensions(); this.buildLabels(); this.fit(); } setDimensions() { if (this.isHorizontal()) { this.width = this.maxWidth; this.left = this._margins.left; this.right = this.width; } else { this.height = this.maxHeight; this.top = this._margins.top; this.bottom = this.height; } } buildLabels() { const labelOpts = this.options.labels || {}; let legendItems = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(labelOpts.generateLabels, [ this.chart ], this) || []; if (labelOpts.filter) { legendItems = legendItems.filter((item)=>labelOpts.filter(item, this.chart.data)); } if (labelOpts.sort) { legendItems = legendItems.sort((a, b)=>labelOpts.sort(a, b, this.chart.data)); } if (this.options.reverse) { legendItems.reverse(); } this.legendItems = legendItems; } fit() { const { options , ctx } = this; if (!options.display) { this.width = this.height = 0; return; } const labelOpts = options.labels; const labelFont = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(labelOpts.font); const fontSize = labelFont.size; const titleHeight = this._computeTitleHeight(); const { boxWidth , itemHeight } = getBoxSize(labelOpts, fontSize); let width, height; ctx.font = labelFont.string; if (this.isHorizontal()) { width = this.maxWidth; height = this._fitRows(titleHeight, fontSize, boxWidth, itemHeight) + 10; } else { height = this.maxHeight; width = this._fitCols(titleHeight, labelFont, boxWidth, itemHeight) + 10; } this.width = Math.min(width, options.maxWidth || this.maxWidth); this.height = Math.min(height, options.maxHeight || this.maxHeight); } _fitRows(titleHeight, fontSize, boxWidth, itemHeight) { const { ctx , maxWidth , options: { labels: { padding } } } = this; const hitboxes = this.legendHitBoxes = []; const lineWidths = this.lineWidths = [ 0 ]; const lineHeight = itemHeight + padding; let totalHeight = titleHeight; ctx.textAlign = 'left'; ctx.textBaseline = 'middle'; let row = -1; let top = -lineHeight; this.legendItems.forEach((legendItem, i)=>{ const itemWidth = boxWidth + fontSize / 2 + ctx.measureText(legendItem.text).width; if (i === 0 || lineWidths[lineWidths.length - 1] + itemWidth + 2 * padding > maxWidth) { totalHeight += lineHeight; lineWidths[lineWidths.length - (i > 0 ? 0 : 1)] = 0; top += lineHeight; row++; } hitboxes[i] = { left: 0, top, row, width: itemWidth, height: itemHeight }; lineWidths[lineWidths.length - 1] += itemWidth + padding; }); return totalHeight; } _fitCols(titleHeight, labelFont, boxWidth, _itemHeight) { const { ctx , maxHeight , options: { labels: { padding } } } = this; const hitboxes = this.legendHitBoxes = []; const columnSizes = this.columnSizes = []; const heightLimit = maxHeight - titleHeight; let totalWidth = padding; let currentColWidth = 0; let currentColHeight = 0; let left = 0; let col = 0; this.legendItems.forEach((legendItem, i)=>{ const { itemWidth , itemHeight } = calculateItemSize(boxWidth, labelFont, ctx, legendItem, _itemHeight); if (i > 0 && currentColHeight + itemHeight + 2 * padding > heightLimit) { totalWidth += currentColWidth + padding; columnSizes.push({ width: currentColWidth, height: currentColHeight }); left += currentColWidth + padding; col++; currentColWidth = currentColHeight = 0; } hitboxes[i] = { left, top: currentColHeight, col, width: itemWidth, height: itemHeight }; currentColWidth = Math.max(currentColWidth, itemWidth); currentColHeight += itemHeight + padding; }); totalWidth += currentColWidth; columnSizes.push({ width: currentColWidth, height: currentColHeight }); return totalWidth; } adjustHitBoxes() { if (!this.options.display) { return; } const titleHeight = this._computeTitleHeight(); const { legendHitBoxes: hitboxes , options: { align , labels: { padding } , rtl } } = this; const rtlHelper = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.az)(rtl, this.left, this.width); if (this.isHorizontal()) { let row = 0; let left = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a2)(align, this.left + padding, this.right - this.lineWidths[row]); for (const hitbox of hitboxes){ if (row !== hitbox.row) { row = hitbox.row; left = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a2)(align, this.left + padding, this.right - this.lineWidths[row]); } hitbox.top += this.top + titleHeight + padding; hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(left), hitbox.width); left += hitbox.width + padding; } } else { let col = 0; let top = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a2)(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height); for (const hitbox of hitboxes){ if (hitbox.col !== col) { col = hitbox.col; top = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a2)(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height); } hitbox.top = top; hitbox.left += this.left + padding; hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(hitbox.left), hitbox.width); top += hitbox.height + padding; } } } isHorizontal() { return this.options.position === 'top' || this.options.position === 'bottom'; } draw() { if (this.options.display) { const ctx = this.ctx; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Y)(ctx, this); this._draw(); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.$)(ctx); } } _draw() { const { options: opts , columnSizes , lineWidths , ctx } = this; const { align , labels: labelOpts } = opts; const defaultColor = _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d.color; const rtlHelper = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.az)(opts.rtl, this.left, this.width); const labelFont = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(labelOpts.font); const { padding } = labelOpts; const fontSize = labelFont.size; const halfFontSize = fontSize / 2; let cursor; this.drawTitle(); ctx.textAlign = rtlHelper.textAlign('left'); ctx.textBaseline = 'middle'; ctx.lineWidth = 0.5; ctx.font = labelFont.string; const { boxWidth , boxHeight , itemHeight } = getBoxSize(labelOpts, fontSize); const drawLegendBox = function(x, y, legendItem) { if (isNaN(boxWidth) || boxWidth <= 0 || isNaN(boxHeight) || boxHeight < 0) { return; } ctx.save(); const lineWidth = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(legendItem.lineWidth, 1); ctx.fillStyle = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(legendItem.fillStyle, defaultColor); ctx.lineCap = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(legendItem.lineCap, 'butt'); ctx.lineDashOffset = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(legendItem.lineDashOffset, 0); ctx.lineJoin = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(legendItem.lineJoin, 'miter'); ctx.lineWidth = lineWidth; ctx.strokeStyle = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(legendItem.strokeStyle, defaultColor); ctx.setLineDash((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(legendItem.lineDash, [])); if (labelOpts.usePointStyle) { const drawOptions = { radius: boxHeight * Math.SQRT2 / 2, pointStyle: legendItem.pointStyle, rotation: legendItem.rotation, borderWidth: lineWidth }; const centerX = rtlHelper.xPlus(x, boxWidth / 2); const centerY = y + halfFontSize; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aD)(ctx, drawOptions, centerX, centerY, labelOpts.pointStyleWidth && boxWidth); } else { const yBoxTop = y + Math.max((fontSize - boxHeight) / 2, 0); const xBoxLeft = rtlHelper.leftForLtr(x, boxWidth); const borderRadius = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aw)(legendItem.borderRadius); ctx.beginPath(); if (Object.values(borderRadius).some((v)=>v !== 0)) { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.au)(ctx, { x: xBoxLeft, y: yBoxTop, w: boxWidth, h: boxHeight, radius: borderRadius }); } else { ctx.rect(xBoxLeft, yBoxTop, boxWidth, boxHeight); } ctx.fill(); if (lineWidth !== 0) { ctx.stroke(); } } ctx.restore(); }; const fillText = function(x, y, legendItem) { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Z)(ctx, legendItem.text, x, y + itemHeight / 2, labelFont, { strikethrough: legendItem.hidden, textAlign: rtlHelper.textAlign(legendItem.textAlign) }); }; const isHorizontal = this.isHorizontal(); const titleHeight = this._computeTitleHeight(); if (isHorizontal) { cursor = { x: (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a2)(align, this.left + padding, this.right - lineWidths[0]), y: this.top + padding + titleHeight, line: 0 }; } else { cursor = { x: this.left + padding, y: (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a2)(align, this.top + titleHeight + padding, this.bottom - columnSizes[0].height), line: 0 }; } (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aA)(this.ctx, opts.textDirection); const lineHeight = itemHeight + padding; this.legendItems.forEach((legendItem, i)=>{ ctx.strokeStyle = legendItem.fontColor; ctx.fillStyle = legendItem.fontColor; const textWidth = ctx.measureText(legendItem.text).width; const textAlign = rtlHelper.textAlign(legendItem.textAlign || (legendItem.textAlign = labelOpts.textAlign)); const width = boxWidth + halfFontSize + textWidth; let x = cursor.x; let y = cursor.y; rtlHelper.setWidth(this.width); if (isHorizontal) { if (i > 0 && x + width + padding > this.right) { y = cursor.y += lineHeight; cursor.line++; x = cursor.x = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a2)(align, this.left + padding, this.right - lineWidths[cursor.line]); } } else if (i > 0 && y + lineHeight > this.bottom) { x = cursor.x = x + columnSizes[cursor.line].width + padding; cursor.line++; y = cursor.y = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a2)(align, this.top + titleHeight + padding, this.bottom - columnSizes[cursor.line].height); } const realX = rtlHelper.x(x); drawLegendBox(realX, y, legendItem); x = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aB)(textAlign, x + boxWidth + halfFontSize, isHorizontal ? x + width : this.right, opts.rtl); fillText(rtlHelper.x(x), y, legendItem); if (isHorizontal) { cursor.x += width + padding; } else if (typeof legendItem.text !== 'string') { const fontLineHeight = labelFont.lineHeight; cursor.y += calculateLegendItemHeight(legendItem, fontLineHeight); } else { cursor.y += lineHeight; } }); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aC)(this.ctx, opts.textDirection); } drawTitle() { const opts = this.options; const titleOpts = opts.title; const titleFont = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(titleOpts.font); const titlePadding = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.E)(titleOpts.padding); if (!titleOpts.display) { return; } const rtlHelper = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.az)(opts.rtl, this.left, this.width); const ctx = this.ctx; const position = titleOpts.position; const halfFontSize = titleFont.size / 2; const topPaddingPlusHalfFontSize = titlePadding.top + halfFontSize; let y; let left = this.left; let maxWidth = this.width; if (this.isHorizontal()) { maxWidth = Math.max(...this.lineWidths); y = this.top + topPaddingPlusHalfFontSize; left = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a2)(opts.align, left, this.right - maxWidth); } else { const maxHeight = this.columnSizes.reduce((acc, size)=>Math.max(acc, size.height), 0); y = topPaddingPlusHalfFontSize + (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a2)(opts.align, this.top, this.bottom - maxHeight - opts.labels.padding - this._computeTitleHeight()); } const x = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a2)(position, left, left + maxWidth); ctx.textAlign = rtlHelper.textAlign((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a1)(position)); ctx.textBaseline = 'middle'; ctx.strokeStyle = titleOpts.color; ctx.fillStyle = titleOpts.color; ctx.font = titleFont.string; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Z)(ctx, titleOpts.text, x, y, titleFont); } _computeTitleHeight() { const titleOpts = this.options.title; const titleFont = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(titleOpts.font); const titlePadding = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.E)(titleOpts.padding); return titleOpts.display ? titleFont.lineHeight + titlePadding.height : 0; } _getLegendItemAt(x, y) { let i, hitBox, lh; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aj)(x, this.left, this.right) && (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aj)(y, this.top, this.bottom)) { lh = this.legendHitBoxes; for(i = 0; i < lh.length; ++i){ hitBox = lh[i]; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aj)(x, hitBox.left, hitBox.left + hitBox.width) && (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aj)(y, hitBox.top, hitBox.top + hitBox.height)) { return this.legendItems[i]; } } } return null; } handleEvent(e) { const opts = this.options; if (!isListened(e.type, opts)) { return; } const hoveredItem = this._getLegendItemAt(e.x, e.y); if (e.type === 'mousemove' || e.type === 'mouseout') { const previous = this._hoveredItem; const sameItem = itemsEqual(previous, hoveredItem); if (previous && !sameItem) { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(opts.onLeave, [ e, previous, this ], this); } this._hoveredItem = hoveredItem; if (hoveredItem && !sameItem) { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(opts.onHover, [ e, hoveredItem, this ], this); } } else if (hoveredItem) { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(opts.onClick, [ e, hoveredItem, this ], this); } } } function calculateItemSize(boxWidth, labelFont, ctx, legendItem, _itemHeight) { const itemWidth = calculateItemWidth(legendItem, boxWidth, labelFont, ctx); const itemHeight = calculateItemHeight(_itemHeight, legendItem, labelFont.lineHeight); return { itemWidth, itemHeight }; } function calculateItemWidth(legendItem, boxWidth, labelFont, ctx) { let legendItemText = legendItem.text; if (legendItemText && typeof legendItemText !== 'string') { legendItemText = legendItemText.reduce((a, b)=>a.length > b.length ? a : b); } return boxWidth + labelFont.size / 2 + ctx.measureText(legendItemText).width; } function calculateItemHeight(_itemHeight, legendItem, fontLineHeight) { let itemHeight = _itemHeight; if (typeof legendItem.text !== 'string') { itemHeight = calculateLegendItemHeight(legendItem, fontLineHeight); } return itemHeight; } function calculateLegendItemHeight(legendItem, fontLineHeight) { const labelHeight = legendItem.text ? legendItem.text.length + 0.5 : 0; return fontLineHeight * labelHeight; } function isListened(type, opts) { if ((type === 'mousemove' || type === 'mouseout') && (opts.onHover || opts.onLeave)) { return true; } if (opts.onClick && (type === 'click' || type === 'mouseup')) { return true; } return false; } var plugin_legend = { id: 'legend', _element: Legend, start (chart, _args, options) { const legend = chart.legend = new Legend({ ctx: chart.ctx, options, chart }); layouts.configure(chart, legend, options); layouts.addBox(chart, legend); }, stop (chart) { layouts.removeBox(chart, chart.legend); delete chart.legend; }, beforeUpdate (chart, _args, options) { const legend = chart.legend; layouts.configure(chart, legend, options); legend.options = options; }, afterUpdate (chart) { const legend = chart.legend; legend.buildLabels(); legend.adjustHitBoxes(); }, afterEvent (chart, args) { if (!args.replay) { chart.legend.handleEvent(args.event); } }, defaults: { display: true, position: 'top', align: 'center', fullSize: true, reverse: false, weight: 1000, onClick (e, legendItem, legend) { const index = legendItem.datasetIndex; const ci = legend.chart; if (ci.isDatasetVisible(index)) { ci.hide(index); legendItem.hidden = true; } else { ci.show(index); legendItem.hidden = false; } }, onHover: null, onLeave: null, labels: { color: (ctx)=>ctx.chart.options.color, boxWidth: 40, padding: 10, generateLabels (chart) { const datasets = chart.data.datasets; const { labels: { usePointStyle , pointStyle , textAlign , color , useBorderRadius , borderRadius } } = chart.legend.options; return chart._getSortedDatasetMetas().map((meta)=>{ const style = meta.controller.getStyle(usePointStyle ? 0 : undefined); const borderWidth = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.E)(style.borderWidth); return { text: datasets[meta.index].label, fillStyle: style.backgroundColor, fontColor: color, hidden: !meta.visible, lineCap: style.borderCapStyle, lineDash: style.borderDash, lineDashOffset: style.borderDashOffset, lineJoin: style.borderJoinStyle, lineWidth: (borderWidth.width + borderWidth.height) / 4, strokeStyle: style.borderColor, pointStyle: pointStyle || style.pointStyle, rotation: style.rotation, textAlign: textAlign || style.textAlign, borderRadius: useBorderRadius && (borderRadius || style.borderRadius), datasetIndex: meta.index }; }, this); } }, title: { color: (ctx)=>ctx.chart.options.color, display: false, position: 'center', text: '' } }, descriptors: { _scriptable: (name)=>!name.startsWith('on'), labels: { _scriptable: (name)=>![ 'generateLabels', 'filter', 'sort' ].includes(name) } } }; class Title extends Element { constructor(config){ super(); this.chart = config.chart; this.options = config.options; this.ctx = config.ctx; this._padding = undefined; this.top = undefined; this.bottom = undefined; this.left = undefined; this.right = undefined; this.width = undefined; this.height = undefined; this.position = undefined; this.weight = undefined; this.fullSize = undefined; } update(maxWidth, maxHeight) { const opts = this.options; this.left = 0; this.top = 0; if (!opts.display) { this.width = this.height = this.right = this.bottom = 0; return; } this.width = this.right = maxWidth; this.height = this.bottom = maxHeight; const lineCount = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.b)(opts.text) ? opts.text.length : 1; this._padding = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.E)(opts.padding); const textSize = lineCount * (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(opts.font).lineHeight + this._padding.height; if (this.isHorizontal()) { this.height = textSize; } else { this.width = textSize; } } isHorizontal() { const pos = this.options.position; return pos === 'top' || pos === 'bottom'; } _drawArgs(offset) { const { top , left , bottom , right , options } = this; const align = options.align; let rotation = 0; let maxWidth, titleX, titleY; if (this.isHorizontal()) { titleX = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a2)(align, left, right); titleY = top + offset; maxWidth = right - left; } else { if (options.position === 'left') { titleX = left + offset; titleY = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a2)(align, bottom, top); rotation = _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.P * -0.5; } else { titleX = right - offset; titleY = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a2)(align, top, bottom); rotation = _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.P * 0.5; } maxWidth = bottom - top; } return { titleX, titleY, maxWidth, rotation }; } draw() { const ctx = this.ctx; const opts = this.options; if (!opts.display) { return; } const fontOpts = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(opts.font); const lineHeight = fontOpts.lineHeight; const offset = lineHeight / 2 + this._padding.top; const { titleX , titleY , maxWidth , rotation } = this._drawArgs(offset); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Z)(ctx, opts.text, 0, 0, fontOpts, { color: opts.color, maxWidth, rotation, textAlign: (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a1)(opts.align), textBaseline: 'middle', translation: [ titleX, titleY ] }); } } function createTitle(chart, titleOpts) { const title = new Title({ ctx: chart.ctx, options: titleOpts, chart }); layouts.configure(chart, title, titleOpts); layouts.addBox(chart, title); chart.titleBlock = title; } var plugin_title = { id: 'title', _element: Title, start (chart, _args, options) { createTitle(chart, options); }, stop (chart) { const titleBlock = chart.titleBlock; layouts.removeBox(chart, titleBlock); delete chart.titleBlock; }, beforeUpdate (chart, _args, options) { const title = chart.titleBlock; layouts.configure(chart, title, options); title.options = options; }, defaults: { align: 'center', display: false, font: { weight: 'bold' }, fullSize: true, padding: 10, position: 'top', text: '', weight: 2000 }, defaultRoutes: { color: 'color' }, descriptors: { _scriptable: true, _indexable: false } }; const map = new WeakMap(); var plugin_subtitle = { id: 'subtitle', start (chart, _args, options) { const title = new Title({ ctx: chart.ctx, options, chart }); layouts.configure(chart, title, options); layouts.addBox(chart, title); map.set(chart, title); }, stop (chart) { layouts.removeBox(chart, map.get(chart)); map.delete(chart); }, beforeUpdate (chart, _args, options) { const title = map.get(chart); layouts.configure(chart, title, options); title.options = options; }, defaults: { align: 'center', display: false, font: { weight: 'normal' }, fullSize: true, padding: 0, position: 'top', text: '', weight: 1500 }, defaultRoutes: { color: 'color' }, descriptors: { _scriptable: true, _indexable: false } }; const positioners = { average (items) { if (!items.length) { return false; } let i, len; let x = 0; let y = 0; let count = 0; for(i = 0, len = items.length; i < len; ++i){ const el = items[i].element; if (el && el.hasValue()) { const pos = el.tooltipPosition(); x += pos.x; y += pos.y; ++count; } } return { x: x / count, y: y / count }; }, nearest (items, eventPosition) { if (!items.length) { return false; } let x = eventPosition.x; let y = eventPosition.y; let minDistance = Number.POSITIVE_INFINITY; let i, len, nearestElement; for(i = 0, len = items.length; i < len; ++i){ const el = items[i].element; if (el && el.hasValue()) { const center = el.getCenterPoint(); const d = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aE)(eventPosition, center); if (d < minDistance) { minDistance = d; nearestElement = el; } } } if (nearestElement) { const tp = nearestElement.tooltipPosition(); x = tp.x; y = tp.y; } return { x, y }; } }; function pushOrConcat(base, toPush) { if (toPush) { if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.b)(toPush)) { Array.prototype.push.apply(base, toPush); } else { base.push(toPush); } } return base; } function splitNewlines(str) { if ((typeof str === 'string' || str instanceof String) && str.indexOf('\n') > -1) { return str.split('\n'); } return str; } function createTooltipItem(chart, item) { const { element , datasetIndex , index } = item; const controller = chart.getDatasetMeta(datasetIndex).controller; const { label , value } = controller.getLabelAndValue(index); return { chart, label, parsed: controller.getParsed(index), raw: chart.data.datasets[datasetIndex].data[index], formattedValue: value, dataset: controller.getDataset(), dataIndex: index, datasetIndex, element }; } function getTooltipSize(tooltip, options) { const ctx = tooltip.chart.ctx; const { body , footer , title } = tooltip; const { boxWidth , boxHeight } = options; const bodyFont = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(options.bodyFont); const titleFont = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(options.titleFont); const footerFont = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(options.footerFont); const titleLineCount = title.length; const footerLineCount = footer.length; const bodyLineItemCount = body.length; const padding = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.E)(options.padding); let height = padding.height; let width = 0; let combinedBodyLength = body.reduce((count, bodyItem)=>count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length, 0); combinedBodyLength += tooltip.beforeBody.length + tooltip.afterBody.length; if (titleLineCount) { height += titleLineCount * titleFont.lineHeight + (titleLineCount - 1) * options.titleSpacing + options.titleMarginBottom; } if (combinedBodyLength) { const bodyLineHeight = options.displayColors ? Math.max(boxHeight, bodyFont.lineHeight) : bodyFont.lineHeight; height += bodyLineItemCount * bodyLineHeight + (combinedBodyLength - bodyLineItemCount) * bodyFont.lineHeight + (combinedBodyLength - 1) * options.bodySpacing; } if (footerLineCount) { height += options.footerMarginTop + footerLineCount * footerFont.lineHeight + (footerLineCount - 1) * options.footerSpacing; } let widthPadding = 0; const maxLineWidth = function(line) { width = Math.max(width, ctx.measureText(line).width + widthPadding); }; ctx.save(); ctx.font = titleFont.string; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(tooltip.title, maxLineWidth); ctx.font = bodyFont.string; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(tooltip.beforeBody.concat(tooltip.afterBody), maxLineWidth); widthPadding = options.displayColors ? boxWidth + 2 + options.boxPadding : 0; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(body, (bodyItem)=>{ (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(bodyItem.before, maxLineWidth); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(bodyItem.lines, maxLineWidth); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(bodyItem.after, maxLineWidth); }); widthPadding = 0; ctx.font = footerFont.string; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(tooltip.footer, maxLineWidth); ctx.restore(); width += padding.width; return { width, height }; } function determineYAlign(chart, size) { const { y , height } = size; if (y < height / 2) { return 'top'; } else if (y > chart.height - height / 2) { return 'bottom'; } return 'center'; } function doesNotFitWithAlign(xAlign, chart, options, size) { const { x , width } = size; const caret = options.caretSize + options.caretPadding; if (xAlign === 'left' && x + width + caret > chart.width) { return true; } if (xAlign === 'right' && x - width - caret < 0) { return true; } } function determineXAlign(chart, options, size, yAlign) { const { x , width } = size; const { width: chartWidth , chartArea: { left , right } } = chart; let xAlign = 'center'; if (yAlign === 'center') { xAlign = x <= (left + right) / 2 ? 'left' : 'right'; } else if (x <= width / 2) { xAlign = 'left'; } else if (x >= chartWidth - width / 2) { xAlign = 'right'; } if (doesNotFitWithAlign(xAlign, chart, options, size)) { xAlign = 'center'; } return xAlign; } function determineAlignment(chart, options, size) { const yAlign = size.yAlign || options.yAlign || determineYAlign(chart, size); return { xAlign: size.xAlign || options.xAlign || determineXAlign(chart, options, size, yAlign), yAlign }; } function alignX(size, xAlign) { let { x , width } = size; if (xAlign === 'right') { x -= width; } else if (xAlign === 'center') { x -= width / 2; } return x; } function alignY(size, yAlign, paddingAndSize) { let { y , height } = size; if (yAlign === 'top') { y += paddingAndSize; } else if (yAlign === 'bottom') { y -= height + paddingAndSize; } else { y -= height / 2; } return y; } function getBackgroundPoint(options, size, alignment, chart) { const { caretSize , caretPadding , cornerRadius } = options; const { xAlign , yAlign } = alignment; const paddingAndSize = caretSize + caretPadding; const { topLeft , topRight , bottomLeft , bottomRight } = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aw)(cornerRadius); let x = alignX(size, xAlign); const y = alignY(size, yAlign, paddingAndSize); if (yAlign === 'center') { if (xAlign === 'left') { x += paddingAndSize; } else if (xAlign === 'right') { x -= paddingAndSize; } } else if (xAlign === 'left') { x -= Math.max(topLeft, bottomLeft) + caretSize; } else if (xAlign === 'right') { x += Math.max(topRight, bottomRight) + caretSize; } return { x: (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.S)(x, 0, chart.width - size.width), y: (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.S)(y, 0, chart.height - size.height) }; } function getAlignedX(tooltip, align, options) { const padding = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.E)(options.padding); return align === 'center' ? tooltip.x + tooltip.width / 2 : align === 'right' ? tooltip.x + tooltip.width - padding.right : tooltip.x + padding.left; } function getBeforeAfterBodyLines(callback) { return pushOrConcat([], splitNewlines(callback)); } function createTooltipContext(parent, tooltip, tooltipItems) { return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.j)(parent, { tooltip, tooltipItems, type: 'tooltip' }); } function overrideCallbacks(callbacks, context) { const override = context && context.dataset && context.dataset.tooltip && context.dataset.tooltip.callbacks; return override ? callbacks.override(override) : callbacks; } const defaultCallbacks = { beforeTitle: _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aF, title (tooltipItems) { if (tooltipItems.length > 0) { const item = tooltipItems[0]; const labels = item.chart.data.labels; const labelCount = labels ? labels.length : 0; if (this && this.options && this.options.mode === 'dataset') { return item.dataset.label || ''; } else if (item.label) { return item.label; } else if (labelCount > 0 && item.dataIndex < labelCount) { return labels[item.dataIndex]; } } return ''; }, afterTitle: _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aF, beforeBody: _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aF, beforeLabel: _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aF, label (tooltipItem) { if (this && this.options && this.options.mode === 'dataset') { return tooltipItem.label + ': ' + tooltipItem.formattedValue || tooltipItem.formattedValue; } let label = tooltipItem.dataset.label || ''; if (label) { label += ': '; } const value = tooltipItem.formattedValue; if (!(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(value)) { label += value; } return label; }, labelColor (tooltipItem) { const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex); const options = meta.controller.getStyle(tooltipItem.dataIndex); return { borderColor: options.borderColor, backgroundColor: options.backgroundColor, borderWidth: options.borderWidth, borderDash: options.borderDash, borderDashOffset: options.borderDashOffset, borderRadius: 0 }; }, labelTextColor () { return this.options.bodyColor; }, labelPointStyle (tooltipItem) { const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex); const options = meta.controller.getStyle(tooltipItem.dataIndex); return { pointStyle: options.pointStyle, rotation: options.rotation }; }, afterLabel: _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aF, afterBody: _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aF, beforeFooter: _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aF, footer: _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aF, afterFooter: _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aF }; function invokeCallbackWithFallback(callbacks, name, ctx, arg) { const result = callbacks[name].call(ctx, arg); if (typeof result === 'undefined') { return defaultCallbacks[name].call(ctx, arg); } return result; } class Tooltip extends Element { static positioners = positioners; constructor(config){ super(); this.opacity = 0; this._active = []; this._eventPosition = undefined; this._size = undefined; this._cachedAnimations = undefined; this._tooltipItems = []; this.$animations = undefined; this.$context = undefined; this.chart = config.chart; this.options = config.options; this.dataPoints = undefined; this.title = undefined; this.beforeBody = undefined; this.body = undefined; this.afterBody = undefined; this.footer = undefined; this.xAlign = undefined; this.yAlign = undefined; this.x = undefined; this.y = undefined; this.height = undefined; this.width = undefined; this.caretX = undefined; this.caretY = undefined; this.labelColors = undefined; this.labelPointStyles = undefined; this.labelTextColors = undefined; } initialize(options) { this.options = options; this._cachedAnimations = undefined; this.$context = undefined; } _resolveAnimations() { const cached = this._cachedAnimations; if (cached) { return cached; } const chart = this.chart; const options = this.options.setContext(this.getContext()); const opts = options.enabled && chart.options.animation && options.animations; const animations = new Animations(this.chart, opts); if (opts._cacheable) { this._cachedAnimations = Object.freeze(animations); } return animations; } getContext() { return this.$context || (this.$context = createTooltipContext(this.chart.getContext(), this, this._tooltipItems)); } getTitle(context, options) { const { callbacks } = options; const beforeTitle = invokeCallbackWithFallback(callbacks, 'beforeTitle', this, context); const title = invokeCallbackWithFallback(callbacks, 'title', this, context); const afterTitle = invokeCallbackWithFallback(callbacks, 'afterTitle', this, context); let lines = []; lines = pushOrConcat(lines, splitNewlines(beforeTitle)); lines = pushOrConcat(lines, splitNewlines(title)); lines = pushOrConcat(lines, splitNewlines(afterTitle)); return lines; } getBeforeBody(tooltipItems, options) { return getBeforeAfterBodyLines(invokeCallbackWithFallback(options.callbacks, 'beforeBody', this, tooltipItems)); } getBody(tooltipItems, options) { const { callbacks } = options; const bodyItems = []; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(tooltipItems, (context)=>{ const bodyItem = { before: [], lines: [], after: [] }; const scoped = overrideCallbacks(callbacks, context); pushOrConcat(bodyItem.before, splitNewlines(invokeCallbackWithFallback(scoped, 'beforeLabel', this, context))); pushOrConcat(bodyItem.lines, invokeCallbackWithFallback(scoped, 'label', this, context)); pushOrConcat(bodyItem.after, splitNewlines(invokeCallbackWithFallback(scoped, 'afterLabel', this, context))); bodyItems.push(bodyItem); }); return bodyItems; } getAfterBody(tooltipItems, options) { return getBeforeAfterBodyLines(invokeCallbackWithFallback(options.callbacks, 'afterBody', this, tooltipItems)); } getFooter(tooltipItems, options) { const { callbacks } = options; const beforeFooter = invokeCallbackWithFallback(callbacks, 'beforeFooter', this, tooltipItems); const footer = invokeCallbackWithFallback(callbacks, 'footer', this, tooltipItems); const afterFooter = invokeCallbackWithFallback(callbacks, 'afterFooter', this, tooltipItems); let lines = []; lines = pushOrConcat(lines, splitNewlines(beforeFooter)); lines = pushOrConcat(lines, splitNewlines(footer)); lines = pushOrConcat(lines, splitNewlines(afterFooter)); return lines; } _createItems(options) { const active = this._active; const data = this.chart.data; const labelColors = []; const labelPointStyles = []; const labelTextColors = []; let tooltipItems = []; let i, len; for(i = 0, len = active.length; i < len; ++i){ tooltipItems.push(createTooltipItem(this.chart, active[i])); } if (options.filter) { tooltipItems = tooltipItems.filter((element, index, array)=>options.filter(element, index, array, data)); } if (options.itemSort) { tooltipItems = tooltipItems.sort((a, b)=>options.itemSort(a, b, data)); } (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(tooltipItems, (context)=>{ const scoped = overrideCallbacks(options.callbacks, context); labelColors.push(invokeCallbackWithFallback(scoped, 'labelColor', this, context)); labelPointStyles.push(invokeCallbackWithFallback(scoped, 'labelPointStyle', this, context)); labelTextColors.push(invokeCallbackWithFallback(scoped, 'labelTextColor', this, context)); }); this.labelColors = labelColors; this.labelPointStyles = labelPointStyles; this.labelTextColors = labelTextColors; this.dataPoints = tooltipItems; return tooltipItems; } update(changed, replay) { const options = this.options.setContext(this.getContext()); const active = this._active; let properties; let tooltipItems = []; if (!active.length) { if (this.opacity !== 0) { properties = { opacity: 0 }; } } else { const position = positioners[options.position].call(this, active, this._eventPosition); tooltipItems = this._createItems(options); this.title = this.getTitle(tooltipItems, options); this.beforeBody = this.getBeforeBody(tooltipItems, options); this.body = this.getBody(tooltipItems, options); this.afterBody = this.getAfterBody(tooltipItems, options); this.footer = this.getFooter(tooltipItems, options); const size = this._size = getTooltipSize(this, options); const positionAndSize = Object.assign({}, position, size); const alignment = determineAlignment(this.chart, options, positionAndSize); const backgroundPoint = getBackgroundPoint(options, positionAndSize, alignment, this.chart); this.xAlign = alignment.xAlign; this.yAlign = alignment.yAlign; properties = { opacity: 1, x: backgroundPoint.x, y: backgroundPoint.y, width: size.width, height: size.height, caretX: position.x, caretY: position.y }; } this._tooltipItems = tooltipItems; this.$context = undefined; if (properties) { this._resolveAnimations().update(this, properties); } if (changed && options.external) { options.external.call(this, { chart: this.chart, tooltip: this, replay }); } } drawCaret(tooltipPoint, ctx, size, options) { const caretPosition = this.getCaretPosition(tooltipPoint, size, options); ctx.lineTo(caretPosition.x1, caretPosition.y1); ctx.lineTo(caretPosition.x2, caretPosition.y2); ctx.lineTo(caretPosition.x3, caretPosition.y3); } getCaretPosition(tooltipPoint, size, options) { const { xAlign , yAlign } = this; const { caretSize , cornerRadius } = options; const { topLeft , topRight , bottomLeft , bottomRight } = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aw)(cornerRadius); const { x: ptX , y: ptY } = tooltipPoint; const { width , height } = size; let x1, x2, x3, y1, y2, y3; if (yAlign === 'center') { y2 = ptY + height / 2; if (xAlign === 'left') { x1 = ptX; x2 = x1 - caretSize; y1 = y2 + caretSize; y3 = y2 - caretSize; } else { x1 = ptX + width; x2 = x1 + caretSize; y1 = y2 - caretSize; y3 = y2 + caretSize; } x3 = x1; } else { if (xAlign === 'left') { x2 = ptX + Math.max(topLeft, bottomLeft) + caretSize; } else if (xAlign === 'right') { x2 = ptX + width - Math.max(topRight, bottomRight) - caretSize; } else { x2 = this.caretX; } if (yAlign === 'top') { y1 = ptY; y2 = y1 - caretSize; x1 = x2 - caretSize; x3 = x2 + caretSize; } else { y1 = ptY + height; y2 = y1 + caretSize; x1 = x2 + caretSize; x3 = x2 - caretSize; } y3 = y1; } return { x1, x2, x3, y1, y2, y3 }; } drawTitle(pt, ctx, options) { const title = this.title; const length = title.length; let titleFont, titleSpacing, i; if (length) { const rtlHelper = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.az)(options.rtl, this.x, this.width); pt.x = getAlignedX(this, options.titleAlign, options); ctx.textAlign = rtlHelper.textAlign(options.titleAlign); ctx.textBaseline = 'middle'; titleFont = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(options.titleFont); titleSpacing = options.titleSpacing; ctx.fillStyle = options.titleColor; ctx.font = titleFont.string; for(i = 0; i < length; ++i){ ctx.fillText(title[i], rtlHelper.x(pt.x), pt.y + titleFont.lineHeight / 2); pt.y += titleFont.lineHeight + titleSpacing; if (i + 1 === length) { pt.y += options.titleMarginBottom - titleSpacing; } } } } _drawColorBox(ctx, pt, i, rtlHelper, options) { const labelColor = this.labelColors[i]; const labelPointStyle = this.labelPointStyles[i]; const { boxHeight , boxWidth } = options; const bodyFont = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(options.bodyFont); const colorX = getAlignedX(this, 'left', options); const rtlColorX = rtlHelper.x(colorX); const yOffSet = boxHeight < bodyFont.lineHeight ? (bodyFont.lineHeight - boxHeight) / 2 : 0; const colorY = pt.y + yOffSet; if (options.usePointStyle) { const drawOptions = { radius: Math.min(boxWidth, boxHeight) / 2, pointStyle: labelPointStyle.pointStyle, rotation: labelPointStyle.rotation, borderWidth: 1 }; const centerX = rtlHelper.leftForLtr(rtlColorX, boxWidth) + boxWidth / 2; const centerY = colorY + boxHeight / 2; ctx.strokeStyle = options.multiKeyBackground; ctx.fillStyle = options.multiKeyBackground; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.at)(ctx, drawOptions, centerX, centerY); ctx.strokeStyle = labelColor.borderColor; ctx.fillStyle = labelColor.backgroundColor; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.at)(ctx, drawOptions, centerX, centerY); } else { ctx.lineWidth = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.i)(labelColor.borderWidth) ? Math.max(...Object.values(labelColor.borderWidth)) : labelColor.borderWidth || 1; ctx.strokeStyle = labelColor.borderColor; ctx.setLineDash(labelColor.borderDash || []); ctx.lineDashOffset = labelColor.borderDashOffset || 0; const outerX = rtlHelper.leftForLtr(rtlColorX, boxWidth); const innerX = rtlHelper.leftForLtr(rtlHelper.xPlus(rtlColorX, 1), boxWidth - 2); const borderRadius = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aw)(labelColor.borderRadius); if (Object.values(borderRadius).some((v)=>v !== 0)) { ctx.beginPath(); ctx.fillStyle = options.multiKeyBackground; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.au)(ctx, { x: outerX, y: colorY, w: boxWidth, h: boxHeight, radius: borderRadius }); ctx.fill(); ctx.stroke(); ctx.fillStyle = labelColor.backgroundColor; ctx.beginPath(); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.au)(ctx, { x: innerX, y: colorY + 1, w: boxWidth - 2, h: boxHeight - 2, radius: borderRadius }); ctx.fill(); } else { ctx.fillStyle = options.multiKeyBackground; ctx.fillRect(outerX, colorY, boxWidth, boxHeight); ctx.strokeRect(outerX, colorY, boxWidth, boxHeight); ctx.fillStyle = labelColor.backgroundColor; ctx.fillRect(innerX, colorY + 1, boxWidth - 2, boxHeight - 2); } } ctx.fillStyle = this.labelTextColors[i]; } drawBody(pt, ctx, options) { const { body } = this; const { bodySpacing , bodyAlign , displayColors , boxHeight , boxWidth , boxPadding } = options; const bodyFont = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(options.bodyFont); let bodyLineHeight = bodyFont.lineHeight; let xLinePadding = 0; const rtlHelper = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.az)(options.rtl, this.x, this.width); const fillLineOfText = function(line) { ctx.fillText(line, rtlHelper.x(pt.x + xLinePadding), pt.y + bodyLineHeight / 2); pt.y += bodyLineHeight + bodySpacing; }; const bodyAlignForCalculation = rtlHelper.textAlign(bodyAlign); let bodyItem, textColor, lines, i, j, ilen, jlen; ctx.textAlign = bodyAlign; ctx.textBaseline = 'middle'; ctx.font = bodyFont.string; pt.x = getAlignedX(this, bodyAlignForCalculation, options); ctx.fillStyle = options.bodyColor; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(this.beforeBody, fillLineOfText); xLinePadding = displayColors && bodyAlignForCalculation !== 'right' ? bodyAlign === 'center' ? boxWidth / 2 + boxPadding : boxWidth + 2 + boxPadding : 0; for(i = 0, ilen = body.length; i < ilen; ++i){ bodyItem = body[i]; textColor = this.labelTextColors[i]; ctx.fillStyle = textColor; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(bodyItem.before, fillLineOfText); lines = bodyItem.lines; if (displayColors && lines.length) { this._drawColorBox(ctx, pt, i, rtlHelper, options); bodyLineHeight = Math.max(bodyFont.lineHeight, boxHeight); } for(j = 0, jlen = lines.length; j < jlen; ++j){ fillLineOfText(lines[j]); bodyLineHeight = bodyFont.lineHeight; } (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(bodyItem.after, fillLineOfText); } xLinePadding = 0; bodyLineHeight = bodyFont.lineHeight; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.F)(this.afterBody, fillLineOfText); pt.y -= bodySpacing; } drawFooter(pt, ctx, options) { const footer = this.footer; const length = footer.length; let footerFont, i; if (length) { const rtlHelper = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.az)(options.rtl, this.x, this.width); pt.x = getAlignedX(this, options.footerAlign, options); pt.y += options.footerMarginTop; ctx.textAlign = rtlHelper.textAlign(options.footerAlign); ctx.textBaseline = 'middle'; footerFont = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(options.footerFont); ctx.fillStyle = options.footerColor; ctx.font = footerFont.string; for(i = 0; i < length; ++i){ ctx.fillText(footer[i], rtlHelper.x(pt.x), pt.y + footerFont.lineHeight / 2); pt.y += footerFont.lineHeight + options.footerSpacing; } } } drawBackground(pt, ctx, tooltipSize, options) { const { xAlign , yAlign } = this; const { x , y } = pt; const { width , height } = tooltipSize; const { topLeft , topRight , bottomLeft , bottomRight } = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aw)(options.cornerRadius); ctx.fillStyle = options.backgroundColor; ctx.strokeStyle = options.borderColor; ctx.lineWidth = options.borderWidth; ctx.beginPath(); ctx.moveTo(x + topLeft, y); if (yAlign === 'top') { this.drawCaret(pt, ctx, tooltipSize, options); } ctx.lineTo(x + width - topRight, y); ctx.quadraticCurveTo(x + width, y, x + width, y + topRight); if (yAlign === 'center' && xAlign === 'right') { this.drawCaret(pt, ctx, tooltipSize, options); } ctx.lineTo(x + width, y + height - bottomRight); ctx.quadraticCurveTo(x + width, y + height, x + width - bottomRight, y + height); if (yAlign === 'bottom') { this.drawCaret(pt, ctx, tooltipSize, options); } ctx.lineTo(x + bottomLeft, y + height); ctx.quadraticCurveTo(x, y + height, x, y + height - bottomLeft); if (yAlign === 'center' && xAlign === 'left') { this.drawCaret(pt, ctx, tooltipSize, options); } ctx.lineTo(x, y + topLeft); ctx.quadraticCurveTo(x, y, x + topLeft, y); ctx.closePath(); ctx.fill(); if (options.borderWidth > 0) { ctx.stroke(); } } _updateAnimationTarget(options) { const chart = this.chart; const anims = this.$animations; const animX = anims && anims.x; const animY = anims && anims.y; if (animX || animY) { const position = positioners[options.position].call(this, this._active, this._eventPosition); if (!position) { return; } const size = this._size = getTooltipSize(this, options); const positionAndSize = Object.assign({}, position, this._size); const alignment = determineAlignment(chart, options, positionAndSize); const point = getBackgroundPoint(options, positionAndSize, alignment, chart); if (animX._to !== point.x || animY._to !== point.y) { this.xAlign = alignment.xAlign; this.yAlign = alignment.yAlign; this.width = size.width; this.height = size.height; this.caretX = position.x; this.caretY = position.y; this._resolveAnimations().update(this, point); } } } _willRender() { return !!this.opacity; } draw(ctx) { const options = this.options.setContext(this.getContext()); let opacity = this.opacity; if (!opacity) { return; } this._updateAnimationTarget(options); const tooltipSize = { width: this.width, height: this.height }; const pt = { x: this.x, y: this.y }; opacity = Math.abs(opacity) < 1e-3 ? 0 : opacity; const padding = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.E)(options.padding); const hasTooltipContent = this.title.length || this.beforeBody.length || this.body.length || this.afterBody.length || this.footer.length; if (options.enabled && hasTooltipContent) { ctx.save(); ctx.globalAlpha = opacity; this.drawBackground(pt, ctx, tooltipSize, options); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aA)(ctx, options.textDirection); pt.y += padding.top; this.drawTitle(pt, ctx, options); this.drawBody(pt, ctx, options); this.drawFooter(pt, ctx, options); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aC)(ctx, options.textDirection); ctx.restore(); } } getActiveElements() { return this._active || []; } setActiveElements(activeElements, eventPosition) { const lastActive = this._active; const active = activeElements.map(({ datasetIndex , index })=>{ const meta = this.chart.getDatasetMeta(datasetIndex); if (!meta) { throw new Error('Cannot find a dataset at index ' + datasetIndex); } return { datasetIndex, element: meta.data[index], index }; }); const changed = !(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ah)(lastActive, active); const positionChanged = this._positionChanged(active, eventPosition); if (changed || positionChanged) { this._active = active; this._eventPosition = eventPosition; this._ignoreReplayEvents = true; this.update(true); } } handleEvent(e, replay, inChartArea = true) { if (replay && this._ignoreReplayEvents) { return false; } this._ignoreReplayEvents = false; const options = this.options; const lastActive = this._active || []; const active = this._getActiveElements(e, lastActive, replay, inChartArea); const positionChanged = this._positionChanged(active, e); const changed = replay || !(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ah)(active, lastActive) || positionChanged; if (changed) { this._active = active; if (options.enabled || options.external) { this._eventPosition = { x: e.x, y: e.y }; this.update(true, replay); } } return changed; } _getActiveElements(e, lastActive, replay, inChartArea) { const options = this.options; if (e.type === 'mouseout') { return []; } if (!inChartArea) { return lastActive; } const active = this.chart.getElementsAtEventForMode(e, options.mode, options, replay); if (options.reverse) { active.reverse(); } return active; } _positionChanged(active, e) { const { caretX , caretY , options } = this; const position = positioners[options.position].call(this, active, e); return position !== false && (caretX !== position.x || caretY !== position.y); } } var plugin_tooltip = { id: 'tooltip', _element: Tooltip, positioners, afterInit (chart, _args, options) { if (options) { chart.tooltip = new Tooltip({ chart, options }); } }, beforeUpdate (chart, _args, options) { if (chart.tooltip) { chart.tooltip.initialize(options); } }, reset (chart, _args, options) { if (chart.tooltip) { chart.tooltip.initialize(options); } }, afterDraw (chart) { const tooltip = chart.tooltip; if (tooltip && tooltip._willRender()) { const args = { tooltip }; if (chart.notifyPlugins('beforeTooltipDraw', { ...args, cancelable: true }) === false) { return; } tooltip.draw(chart.ctx); chart.notifyPlugins('afterTooltipDraw', args); } }, afterEvent (chart, args) { if (chart.tooltip) { const useFinalPosition = args.replay; if (chart.tooltip.handleEvent(args.event, useFinalPosition, args.inChartArea)) { args.changed = true; } } }, defaults: { enabled: true, external: null, position: 'average', backgroundColor: 'rgba(0,0,0,0.8)', titleColor: '#fff', titleFont: { weight: 'bold' }, titleSpacing: 2, titleMarginBottom: 6, titleAlign: 'left', bodyColor: '#fff', bodySpacing: 2, bodyFont: {}, bodyAlign: 'left', footerColor: '#fff', footerSpacing: 2, footerMarginTop: 6, footerFont: { weight: 'bold' }, footerAlign: 'left', padding: 6, caretPadding: 2, caretSize: 5, cornerRadius: 6, boxHeight: (ctx, opts)=>opts.bodyFont.size, boxWidth: (ctx, opts)=>opts.bodyFont.size, multiKeyBackground: '#fff', displayColors: true, boxPadding: 0, borderColor: 'rgba(0,0,0,0)', borderWidth: 0, animation: { duration: 400, easing: 'easeOutQuart' }, animations: { numbers: { type: 'number', properties: [ 'x', 'y', 'width', 'height', 'caretX', 'caretY' ] }, opacity: { easing: 'linear', duration: 200 } }, callbacks: defaultCallbacks }, defaultRoutes: { bodyFont: 'font', footerFont: 'font', titleFont: 'font' }, descriptors: { _scriptable: (name)=>name !== 'filter' && name !== 'itemSort' && name !== 'external', _indexable: false, callbacks: { _scriptable: false, _indexable: false }, animation: { _fallback: false }, animations: { _fallback: 'animation' } }, additionalOptionScopes: [ 'interaction' ] }; var plugins = /*#__PURE__*/Object.freeze({ __proto__: null, Colors: plugin_colors, Decimation: plugin_decimation, Filler: index, Legend: plugin_legend, SubTitle: plugin_subtitle, Title: plugin_title, Tooltip: plugin_tooltip }); const addIfString = (labels, raw, index, addedLabels)=>{ if (typeof raw === 'string') { index = labels.push(raw) - 1; addedLabels.unshift({ index, label: raw }); } else if (isNaN(raw)) { index = null; } return index; }; function findOrAddLabel(labels, raw, index, addedLabels) { const first = labels.indexOf(raw); if (first === -1) { return addIfString(labels, raw, index, addedLabels); } const last = labels.lastIndexOf(raw); return first !== last ? index : first; } const validIndex = (index, max)=>index === null ? null : (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.S)(Math.round(index), 0, max); function _getLabelForValue(value) { const labels = this.getLabels(); if (value >= 0 && value < labels.length) { return labels[value]; } return value; } class CategoryScale extends Scale { static id = 'category'; static defaults = { ticks: { callback: _getLabelForValue } }; constructor(cfg){ super(cfg); this._startValue = undefined; this._valueRange = 0; this._addedLabels = []; } init(scaleOptions) { const added = this._addedLabels; if (added.length) { const labels = this.getLabels(); for (const { index , label } of added){ if (labels[index] === label) { labels.splice(index, 1); } } this._addedLabels = []; } super.init(scaleOptions); } parse(raw, index) { if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(raw)) { return null; } const labels = this.getLabels(); index = isFinite(index) && labels[index] === raw ? index : findOrAddLabel(labels, raw, (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(index, raw), this._addedLabels); return validIndex(index, labels.length - 1); } determineDataLimits() { const { minDefined , maxDefined } = this.getUserBounds(); let { min , max } = this.getMinMax(true); if (this.options.bounds === 'ticks') { if (!minDefined) { min = 0; } if (!maxDefined) { max = this.getLabels().length - 1; } } this.min = min; this.max = max; } buildTicks() { const min = this.min; const max = this.max; const offset = this.options.offset; const ticks = []; let labels = this.getLabels(); labels = min === 0 && max === labels.length - 1 ? labels : labels.slice(min, max + 1); this._valueRange = Math.max(labels.length - (offset ? 0 : 1), 1); this._startValue = this.min - (offset ? 0.5 : 0); for(let value = min; value <= max; value++){ ticks.push({ value }); } return ticks; } getLabelForValue(value) { return _getLabelForValue.call(this, value); } configure() { super.configure(); if (!this.isHorizontal()) { this._reversePixels = !this._reversePixels; } } getPixelForValue(value) { if (typeof value !== 'number') { value = this.parse(value); } return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange); } getPixelForTick(index) { const ticks = this.ticks; if (index < 0 || index > ticks.length - 1) { return null; } return this.getPixelForValue(ticks[index].value); } getValueForPixel(pixel) { return Math.round(this._startValue + this.getDecimalForPixel(pixel) * this._valueRange); } getBasePixel() { return this.bottom; } } function generateTicks$1(generationOptions, dataRange) { const ticks = []; const MIN_SPACING = 1e-14; const { bounds , step , min , max , precision , count , maxTicks , maxDigits , includeBounds } = generationOptions; const unit = step || 1; const maxSpaces = maxTicks - 1; const { min: rmin , max: rmax } = dataRange; const minDefined = !(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(min); const maxDefined = !(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(max); const countDefined = !(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(count); const minSpacing = (rmax - rmin) / (maxDigits + 1); let spacing = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aH)((rmax - rmin) / maxSpaces / unit) * unit; let factor, niceMin, niceMax, numSpaces; if (spacing < MIN_SPACING && !minDefined && !maxDefined) { return [ { value: rmin }, { value: rmax } ]; } numSpaces = Math.ceil(rmax / spacing) - Math.floor(rmin / spacing); if (numSpaces > maxSpaces) { spacing = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aH)(numSpaces * spacing / maxSpaces / unit) * unit; } if (!(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(precision)) { factor = Math.pow(10, precision); spacing = Math.ceil(spacing * factor) / factor; } if (bounds === 'ticks') { niceMin = Math.floor(rmin / spacing) * spacing; niceMax = Math.ceil(rmax / spacing) * spacing; } else { niceMin = rmin; niceMax = rmax; } if (minDefined && maxDefined && step && (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aI)((max - min) / step, spacing / 1000)) { numSpaces = Math.round(Math.min((max - min) / spacing, maxTicks)); spacing = (max - min) / numSpaces; niceMin = min; niceMax = max; } else if (countDefined) { niceMin = minDefined ? min : niceMin; niceMax = maxDefined ? max : niceMax; numSpaces = count - 1; spacing = (niceMax - niceMin) / numSpaces; } else { numSpaces = (niceMax - niceMin) / spacing; if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aJ)(numSpaces, Math.round(numSpaces), spacing / 1000)) { numSpaces = Math.round(numSpaces); } else { numSpaces = Math.ceil(numSpaces); } } const decimalPlaces = Math.max((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aK)(spacing), (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aK)(niceMin)); factor = Math.pow(10, (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(precision) ? decimalPlaces : precision); niceMin = Math.round(niceMin * factor) / factor; niceMax = Math.round(niceMax * factor) / factor; let j = 0; if (minDefined) { if (includeBounds && niceMin !== min) { ticks.push({ value: min }); if (niceMin < min) { j++; } if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aJ)(Math.round((niceMin + j * spacing) * factor) / factor, min, relativeLabelSize(min, minSpacing, generationOptions))) { j++; } } else if (niceMin < min) { j++; } } for(; j < numSpaces; ++j){ const tickValue = Math.round((niceMin + j * spacing) * factor) / factor; if (maxDefined && tickValue > max) { break; } ticks.push({ value: tickValue }); } if (maxDefined && includeBounds && niceMax !== max) { if (ticks.length && (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aJ)(ticks[ticks.length - 1].value, max, relativeLabelSize(max, minSpacing, generationOptions))) { ticks[ticks.length - 1].value = max; } else { ticks.push({ value: max }); } } else if (!maxDefined || niceMax === max) { ticks.push({ value: niceMax }); } return ticks; } function relativeLabelSize(value, minSpacing, { horizontal , minRotation }) { const rad = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.t)(minRotation); const ratio = (horizontal ? Math.sin(rad) : Math.cos(rad)) || 0.001; const length = 0.75 * minSpacing * ('' + value).length; return Math.min(minSpacing / ratio, length); } class LinearScaleBase extends Scale { constructor(cfg){ super(cfg); this.start = undefined; this.end = undefined; this._startValue = undefined; this._endValue = undefined; this._valueRange = 0; } parse(raw, index) { if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(raw)) { return null; } if ((typeof raw === 'number' || raw instanceof Number) && !isFinite(+raw)) { return null; } return +raw; } handleTickRangeOptions() { const { beginAtZero } = this.options; const { minDefined , maxDefined } = this.getUserBounds(); let { min , max } = this; const setMin = (v)=>min = minDefined ? min : v; const setMax = (v)=>max = maxDefined ? max : v; if (beginAtZero) { const minSign = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.s)(min); const maxSign = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.s)(max); if (minSign < 0 && maxSign < 0) { setMax(0); } else if (minSign > 0 && maxSign > 0) { setMin(0); } } if (min === max) { let offset = max === 0 ? 1 : Math.abs(max * 0.05); setMax(max + offset); if (!beginAtZero) { setMin(min - offset); } } this.min = min; this.max = max; } getTickLimit() { const tickOpts = this.options.ticks; let { maxTicksLimit , stepSize } = tickOpts; let maxTicks; if (stepSize) { maxTicks = Math.ceil(this.max / stepSize) - Math.floor(this.min / stepSize) + 1; if (maxTicks > 1000) { console.warn(`scales.${this.id}.ticks.stepSize: ${stepSize} would result generating up to ${maxTicks} ticks. Limiting to 1000.`); maxTicks = 1000; } } else { maxTicks = this.computeTickLimit(); maxTicksLimit = maxTicksLimit || 11; } if (maxTicksLimit) { maxTicks = Math.min(maxTicksLimit, maxTicks); } return maxTicks; } computeTickLimit() { return Number.POSITIVE_INFINITY; } buildTicks() { const opts = this.options; const tickOpts = opts.ticks; let maxTicks = this.getTickLimit(); maxTicks = Math.max(2, maxTicks); const numericGeneratorOptions = { maxTicks, bounds: opts.bounds, min: opts.min, max: opts.max, precision: tickOpts.precision, step: tickOpts.stepSize, count: tickOpts.count, maxDigits: this._maxDigits(), horizontal: this.isHorizontal(), minRotation: tickOpts.minRotation || 0, includeBounds: tickOpts.includeBounds !== false }; const dataRange = this._range || this; const ticks = generateTicks$1(numericGeneratorOptions, dataRange); if (opts.bounds === 'ticks') { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aG)(ticks, this, 'value'); } if (opts.reverse) { ticks.reverse(); this.start = this.max; this.end = this.min; } else { this.start = this.min; this.end = this.max; } return ticks; } configure() { const ticks = this.ticks; let start = this.min; let end = this.max; super.configure(); if (this.options.offset && ticks.length) { const offset = (end - start) / Math.max(ticks.length - 1, 1) / 2; start -= offset; end += offset; } this._startValue = start; this._endValue = end; this._valueRange = end - start; } getLabelForValue(value) { return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.o)(value, this.chart.options.locale, this.options.ticks.format); } } class LinearScale extends LinearScaleBase { static id = 'linear'; static defaults = { ticks: { callback: _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aL.formatters.numeric } }; determineDataLimits() { const { min , max } = this.getMinMax(true); this.min = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(min) ? min : 0; this.max = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(max) ? max : 1; this.handleTickRangeOptions(); } computeTickLimit() { const horizontal = this.isHorizontal(); const length = horizontal ? this.width : this.height; const minRotation = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.t)(this.options.ticks.minRotation); const ratio = (horizontal ? Math.sin(minRotation) : Math.cos(minRotation)) || 0.001; const tickFont = this._resolveTickFontOptions(0); return Math.ceil(length / Math.min(40, tickFont.lineHeight / ratio)); } getPixelForValue(value) { return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange); } getValueForPixel(pixel) { return this._startValue + this.getDecimalForPixel(pixel) * this._valueRange; } } const log10Floor = (v)=>Math.floor((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aM)(v)); const changeExponent = (v, m)=>Math.pow(10, log10Floor(v) + m); function isMajor(tickVal) { const remain = tickVal / Math.pow(10, log10Floor(tickVal)); return remain === 1; } function steps(min, max, rangeExp) { const rangeStep = Math.pow(10, rangeExp); const start = Math.floor(min / rangeStep); const end = Math.ceil(max / rangeStep); return end - start; } function startExp(min, max) { const range = max - min; let rangeExp = log10Floor(range); while(steps(min, max, rangeExp) > 10){ rangeExp++; } while(steps(min, max, rangeExp) < 10){ rangeExp--; } return Math.min(rangeExp, log10Floor(min)); } function generateTicks(generationOptions, { min , max }) { min = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.O)(generationOptions.min, min); const ticks = []; const minExp = log10Floor(min); let exp = startExp(min, max); let precision = exp < 0 ? Math.pow(10, Math.abs(exp)) : 1; const stepSize = Math.pow(10, exp); const base = minExp > exp ? Math.pow(10, minExp) : 0; const start = Math.round((min - base) * precision) / precision; const offset = Math.floor((min - base) / stepSize / 10) * stepSize * 10; let significand = Math.floor((start - offset) / Math.pow(10, exp)); let value = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.O)(generationOptions.min, Math.round((base + offset + significand * Math.pow(10, exp)) * precision) / precision); while(value < max){ ticks.push({ value, major: isMajor(value), significand }); if (significand >= 10) { significand = significand < 15 ? 15 : 20; } else { significand++; } if (significand >= 20) { exp++; significand = 2; precision = exp >= 0 ? 1 : precision; } value = Math.round((base + offset + significand * Math.pow(10, exp)) * precision) / precision; } const lastTick = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.O)(generationOptions.max, value); ticks.push({ value: lastTick, major: isMajor(lastTick), significand }); return ticks; } class LogarithmicScale extends Scale { static id = 'logarithmic'; static defaults = { ticks: { callback: _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aL.formatters.logarithmic, major: { enabled: true } } }; constructor(cfg){ super(cfg); this.start = undefined; this.end = undefined; this._startValue = undefined; this._valueRange = 0; } parse(raw, index) { const value = LinearScaleBase.prototype.parse.apply(this, [ raw, index ]); if (value === 0) { this._zero = true; return undefined; } return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(value) && value > 0 ? value : null; } determineDataLimits() { const { min , max } = this.getMinMax(true); this.min = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(min) ? Math.max(0, min) : null; this.max = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(max) ? Math.max(0, max) : null; if (this.options.beginAtZero) { this._zero = true; } if (this._zero && this.min !== this._suggestedMin && !(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(this._userMin)) { this.min = min === changeExponent(this.min, 0) ? changeExponent(this.min, -1) : changeExponent(this.min, 0); } this.handleTickRangeOptions(); } handleTickRangeOptions() { const { minDefined , maxDefined } = this.getUserBounds(); let min = this.min; let max = this.max; const setMin = (v)=>min = minDefined ? min : v; const setMax = (v)=>max = maxDefined ? max : v; if (min === max) { if (min <= 0) { setMin(1); setMax(10); } else { setMin(changeExponent(min, -1)); setMax(changeExponent(max, +1)); } } if (min <= 0) { setMin(changeExponent(max, -1)); } if (max <= 0) { setMax(changeExponent(min, +1)); } this.min = min; this.max = max; } buildTicks() { const opts = this.options; const generationOptions = { min: this._userMin, max: this._userMax }; const ticks = generateTicks(generationOptions, this); if (opts.bounds === 'ticks') { (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aG)(ticks, this, 'value'); } if (opts.reverse) { ticks.reverse(); this.start = this.max; this.end = this.min; } else { this.start = this.min; this.end = this.max; } return ticks; } getLabelForValue(value) { return value === undefined ? '0' : (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.o)(value, this.chart.options.locale, this.options.ticks.format); } configure() { const start = this.min; super.configure(); this._startValue = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aM)(start); this._valueRange = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aM)(this.max) - (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aM)(start); } getPixelForValue(value) { if (value === undefined || value === 0) { value = this.min; } if (value === null || isNaN(value)) { return NaN; } return this.getPixelForDecimal(value === this.min ? 0 : ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aM)(value) - this._startValue) / this._valueRange); } getValueForPixel(pixel) { const decimal = this.getDecimalForPixel(pixel); return Math.pow(10, this._startValue + decimal * this._valueRange); } } function getTickBackdropHeight(opts) { const tickOpts = opts.ticks; if (tickOpts.display && opts.display) { const padding = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.E)(tickOpts.backdropPadding); return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(tickOpts.font && tickOpts.font.size, _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.d.font.size) + padding.height; } return 0; } function measureLabelSize(ctx, font, label) { label = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.b)(label) ? label : [ label ]; return { w: (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aN)(ctx, font.string, label), h: label.length * font.lineHeight }; } function determineLimits(angle, pos, size, min, max) { if (angle === min || angle === max) { return { start: pos - size / 2, end: pos + size / 2 }; } else if (angle < min || angle > max) { return { start: pos - size, end: pos }; } return { start: pos, end: pos + size }; } function fitWithPointLabels(scale) { const orig = { l: scale.left + scale._padding.left, r: scale.right - scale._padding.right, t: scale.top + scale._padding.top, b: scale.bottom - scale._padding.bottom }; const limits = Object.assign({}, orig); const labelSizes = []; const padding = []; const valueCount = scale._pointLabels.length; const pointLabelOpts = scale.options.pointLabels; const additionalAngle = pointLabelOpts.centerPointLabels ? _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.P / valueCount : 0; for(let i = 0; i < valueCount; i++){ const opts = pointLabelOpts.setContext(scale.getPointLabelContext(i)); padding[i] = opts.padding; const pointPosition = scale.getPointPosition(i, scale.drawingArea + padding[i], additionalAngle); const plFont = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(opts.font); const textSize = measureLabelSize(scale.ctx, plFont, scale._pointLabels[i]); labelSizes[i] = textSize; const angleRadians = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ay)(scale.getIndexAngle(i) + additionalAngle); const angle = Math.round((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.U)(angleRadians)); const hLimits = determineLimits(angle, pointPosition.x, textSize.w, 0, 180); const vLimits = determineLimits(angle, pointPosition.y, textSize.h, 90, 270); updateLimits(limits, orig, angleRadians, hLimits, vLimits); } scale.setCenterPoint(orig.l - limits.l, limits.r - orig.r, orig.t - limits.t, limits.b - orig.b); scale._pointLabelItems = buildPointLabelItems(scale, labelSizes, padding); } function updateLimits(limits, orig, angle, hLimits, vLimits) { const sin = Math.abs(Math.sin(angle)); const cos = Math.abs(Math.cos(angle)); let x = 0; let y = 0; if (hLimits.start < orig.l) { x = (orig.l - hLimits.start) / sin; limits.l = Math.min(limits.l, orig.l - x); } else if (hLimits.end > orig.r) { x = (hLimits.end - orig.r) / sin; limits.r = Math.max(limits.r, orig.r + x); } if (vLimits.start < orig.t) { y = (orig.t - vLimits.start) / cos; limits.t = Math.min(limits.t, orig.t - y); } else if (vLimits.end > orig.b) { y = (vLimits.end - orig.b) / cos; limits.b = Math.max(limits.b, orig.b + y); } } function createPointLabelItem(scale, index, itemOpts) { const outerDistance = scale.drawingArea; const { extra , additionalAngle , padding , size } = itemOpts; const pointLabelPosition = scale.getPointPosition(index, outerDistance + extra + padding, additionalAngle); const angle = Math.round((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.U)((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ay)(pointLabelPosition.angle + _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.H))); const y = yForAngle(pointLabelPosition.y, size.h, angle); const textAlign = getTextAlignForAngle(angle); const left = leftForTextAlign(pointLabelPosition.x, size.w, textAlign); return { visible: true, x: pointLabelPosition.x, y, textAlign, left, top: y, right: left + size.w, bottom: y + size.h }; } function isNotOverlapped(item, area) { if (!area) { return true; } const { left , top , right , bottom } = item; const apexesInArea = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.C)({ x: left, y: top }, area) || (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.C)({ x: left, y: bottom }, area) || (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.C)({ x: right, y: top }, area) || (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.C)({ x: right, y: bottom }, area); return !apexesInArea; } function buildPointLabelItems(scale, labelSizes, padding) { const items = []; const valueCount = scale._pointLabels.length; const opts = scale.options; const { centerPointLabels , display } = opts.pointLabels; const itemOpts = { extra: getTickBackdropHeight(opts) / 2, additionalAngle: centerPointLabels ? _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.P / valueCount : 0 }; let area; for(let i = 0; i < valueCount; i++){ itemOpts.padding = padding[i]; itemOpts.size = labelSizes[i]; const item = createPointLabelItem(scale, i, itemOpts); items.push(item); if (display === 'auto') { item.visible = isNotOverlapped(item, area); if (item.visible) { area = item; } } } return items; } function getTextAlignForAngle(angle) { if (angle === 0 || angle === 180) { return 'center'; } else if (angle < 180) { return 'left'; } return 'right'; } function leftForTextAlign(x, w, align) { if (align === 'right') { x -= w; } else if (align === 'center') { x -= w / 2; } return x; } function yForAngle(y, h, angle) { if (angle === 90 || angle === 270) { y -= h / 2; } else if (angle > 270 || angle < 90) { y -= h; } return y; } function drawPointLabelBox(ctx, opts, item) { const { left , top , right , bottom } = item; const { backdropColor } = opts; if (!(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(backdropColor)) { const borderRadius = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aw)(opts.borderRadius); const padding = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.E)(opts.backdropPadding); ctx.fillStyle = backdropColor; const backdropLeft = left - padding.left; const backdropTop = top - padding.top; const backdropWidth = right - left + padding.width; const backdropHeight = bottom - top + padding.height; if (Object.values(borderRadius).some((v)=>v !== 0)) { ctx.beginPath(); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.au)(ctx, { x: backdropLeft, y: backdropTop, w: backdropWidth, h: backdropHeight, radius: borderRadius }); ctx.fill(); } else { ctx.fillRect(backdropLeft, backdropTop, backdropWidth, backdropHeight); } } } function drawPointLabels(scale, labelCount) { const { ctx , options: { pointLabels } } = scale; for(let i = labelCount - 1; i >= 0; i--){ const item = scale._pointLabelItems[i]; if (!item.visible) { continue; } const optsAtIndex = pointLabels.setContext(scale.getPointLabelContext(i)); drawPointLabelBox(ctx, optsAtIndex, item); const plFont = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(optsAtIndex.font); const { x , y , textAlign } = item; (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Z)(ctx, scale._pointLabels[i], x, y + plFont.lineHeight / 2, plFont, { color: optsAtIndex.color, textAlign: textAlign, textBaseline: 'middle' }); } } function pathRadiusLine(scale, radius, circular, labelCount) { const { ctx } = scale; if (circular) { ctx.arc(scale.xCenter, scale.yCenter, radius, 0, _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.T); } else { let pointPosition = scale.getPointPosition(0, radius); ctx.moveTo(pointPosition.x, pointPosition.y); for(let i = 1; i < labelCount; i++){ pointPosition = scale.getPointPosition(i, radius); ctx.lineTo(pointPosition.x, pointPosition.y); } } } function drawRadiusLine(scale, gridLineOpts, radius, labelCount, borderOpts) { const ctx = scale.ctx; const circular = gridLineOpts.circular; const { color , lineWidth } = gridLineOpts; if (!circular && !labelCount || !color || !lineWidth || radius < 0) { return; } ctx.save(); ctx.strokeStyle = color; ctx.lineWidth = lineWidth; ctx.setLineDash(borderOpts.dash); ctx.lineDashOffset = borderOpts.dashOffset; ctx.beginPath(); pathRadiusLine(scale, radius, circular, labelCount); ctx.closePath(); ctx.stroke(); ctx.restore(); } function createPointLabelContext(parent, index, label) { return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.j)(parent, { label, index, type: 'pointLabel' }); } class RadialLinearScale extends LinearScaleBase { static id = 'radialLinear'; static defaults = { display: true, animate: true, position: 'chartArea', angleLines: { display: true, lineWidth: 1, borderDash: [], borderDashOffset: 0.0 }, grid: { circular: false }, startAngle: 0, ticks: { showLabelBackdrop: true, callback: _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aL.formatters.numeric }, pointLabels: { backdropColor: undefined, backdropPadding: 2, display: true, font: { size: 10 }, callback (label) { return label; }, padding: 5, centerPointLabels: false } }; static defaultRoutes = { 'angleLines.color': 'borderColor', 'pointLabels.color': 'color', 'ticks.color': 'color' }; static descriptors = { angleLines: { _fallback: 'grid' } }; constructor(cfg){ super(cfg); this.xCenter = undefined; this.yCenter = undefined; this.drawingArea = undefined; this._pointLabels = []; this._pointLabelItems = []; } setDimensions() { const padding = this._padding = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.E)(getTickBackdropHeight(this.options) / 2); const w = this.width = this.maxWidth - padding.width; const h = this.height = this.maxHeight - padding.height; this.xCenter = Math.floor(this.left + w / 2 + padding.left); this.yCenter = Math.floor(this.top + h / 2 + padding.top); this.drawingArea = Math.floor(Math.min(w, h) / 2); } determineDataLimits() { const { min , max } = this.getMinMax(false); this.min = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(min) && !isNaN(min) ? min : 0; this.max = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(max) && !isNaN(max) ? max : 0; this.handleTickRangeOptions(); } computeTickLimit() { return Math.ceil(this.drawingArea / getTickBackdropHeight(this.options)); } generateTickLabels(ticks) { LinearScaleBase.prototype.generateTickLabels.call(this, ticks); this._pointLabels = this.getLabels().map((value, index)=>{ const label = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(this.options.pointLabels.callback, [ value, index ], this); return label || label === 0 ? label : ''; }).filter((v, i)=>this.chart.getDataVisibility(i)); } fit() { const opts = this.options; if (opts.display && opts.pointLabels.display) { fitWithPointLabels(this); } else { this.setCenterPoint(0, 0, 0, 0); } } setCenterPoint(leftMovement, rightMovement, topMovement, bottomMovement) { this.xCenter += Math.floor((leftMovement - rightMovement) / 2); this.yCenter += Math.floor((topMovement - bottomMovement) / 2); this.drawingArea -= Math.min(this.drawingArea / 2, Math.max(leftMovement, rightMovement, topMovement, bottomMovement)); } getIndexAngle(index) { const angleMultiplier = _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.T / (this._pointLabels.length || 1); const startAngle = this.options.startAngle || 0; return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ay)(index * angleMultiplier + (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.t)(startAngle)); } getDistanceFromCenterForValue(value) { if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(value)) { return NaN; } const scalingFactor = this.drawingArea / (this.max - this.min); if (this.options.reverse) { return (this.max - value) * scalingFactor; } return (value - this.min) * scalingFactor; } getValueForDistanceFromCenter(distance) { if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(distance)) { return NaN; } const scaledDistance = distance / (this.drawingArea / (this.max - this.min)); return this.options.reverse ? this.max - scaledDistance : this.min + scaledDistance; } getPointLabelContext(index) { const pointLabels = this._pointLabels || []; if (index >= 0 && index < pointLabels.length) { const pointLabel = pointLabels[index]; return createPointLabelContext(this.getContext(), index, pointLabel); } } getPointPosition(index, distanceFromCenter, additionalAngle = 0) { const angle = this.getIndexAngle(index) - _chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.H + additionalAngle; return { x: Math.cos(angle) * distanceFromCenter + this.xCenter, y: Math.sin(angle) * distanceFromCenter + this.yCenter, angle }; } getPointPositionForValue(index, value) { return this.getPointPosition(index, this.getDistanceFromCenterForValue(value)); } getBasePosition(index) { return this.getPointPositionForValue(index || 0, this.getBaseValue()); } getPointLabelPosition(index) { const { left , top , right , bottom } = this._pointLabelItems[index]; return { left, top, right, bottom }; } drawBackground() { const { backgroundColor , grid: { circular } } = this.options; if (backgroundColor) { const ctx = this.ctx; ctx.save(); ctx.beginPath(); pathRadiusLine(this, this.getDistanceFromCenterForValue(this._endValue), circular, this._pointLabels.length); ctx.closePath(); ctx.fillStyle = backgroundColor; ctx.fill(); ctx.restore(); } } drawGrid() { const ctx = this.ctx; const opts = this.options; const { angleLines , grid , border } = opts; const labelCount = this._pointLabels.length; let i, offset, position; if (opts.pointLabels.display) { drawPointLabels(this, labelCount); } if (grid.display) { this.ticks.forEach((tick, index)=>{ if (index !== 0) { offset = this.getDistanceFromCenterForValue(tick.value); const context = this.getContext(index); const optsAtIndex = grid.setContext(context); const optsAtIndexBorder = border.setContext(context); drawRadiusLine(this, optsAtIndex, offset, labelCount, optsAtIndexBorder); } }); } if (angleLines.display) { ctx.save(); for(i = labelCount - 1; i >= 0; i--){ const optsAtIndex = angleLines.setContext(this.getPointLabelContext(i)); const { color , lineWidth } = optsAtIndex; if (!lineWidth || !color) { continue; } ctx.lineWidth = lineWidth; ctx.strokeStyle = color; ctx.setLineDash(optsAtIndex.borderDash); ctx.lineDashOffset = optsAtIndex.borderDashOffset; offset = this.getDistanceFromCenterForValue(opts.ticks.reverse ? this.min : this.max); position = this.getPointPosition(i, offset); ctx.beginPath(); ctx.moveTo(this.xCenter, this.yCenter); ctx.lineTo(position.x, position.y); ctx.stroke(); } ctx.restore(); } } drawBorder() {} drawLabels() { const ctx = this.ctx; const opts = this.options; const tickOpts = opts.ticks; if (!tickOpts.display) { return; } const startAngle = this.getIndexAngle(0); let offset, width; ctx.save(); ctx.translate(this.xCenter, this.yCenter); ctx.rotate(startAngle); ctx.textAlign = 'center'; ctx.textBaseline = 'middle'; this.ticks.forEach((tick, index)=>{ if (index === 0 && !opts.reverse) { return; } const optsAtIndex = tickOpts.setContext(this.getContext(index)); const tickFont = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.a0)(optsAtIndex.font); offset = this.getDistanceFromCenterForValue(this.ticks[index].value); if (optsAtIndex.showLabelBackdrop) { ctx.font = tickFont.string; width = ctx.measureText(tick.label).width; ctx.fillStyle = optsAtIndex.backdropColor; const padding = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.E)(optsAtIndex.backdropPadding); ctx.fillRect(-width / 2 - padding.left, -offset - tickFont.size / 2 - padding.top, width + padding.width, tickFont.size + padding.height); } (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Z)(ctx, tick.label, 0, -offset, tickFont, { color: optsAtIndex.color }); }); ctx.restore(); } drawTitle() {} } const INTERVALS = { millisecond: { common: true, size: 1, steps: 1000 }, second: { common: true, size: 1000, steps: 60 }, minute: { common: true, size: 60000, steps: 60 }, hour: { common: true, size: 3600000, steps: 24 }, day: { common: true, size: 86400000, steps: 30 }, week: { common: false, size: 604800000, steps: 4 }, month: { common: true, size: 2.628e9, steps: 12 }, quarter: { common: false, size: 7.884e9, steps: 4 }, year: { common: true, size: 3.154e10 } }; const UNITS = /* #__PURE__ */ Object.keys(INTERVALS); function sorter(a, b) { return a - b; } function parse(scale, input) { if ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.k)(input)) { return null; } const adapter = scale._adapter; const { parser , round , isoWeekday } = scale._parseOpts; let value = input; if (typeof parser === 'function') { value = parser(value); } if (!(0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(value)) { value = typeof parser === 'string' ? adapter.parse(value, parser) : adapter.parse(value); } if (value === null) { return null; } if (round) { value = round === 'week' && ((0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.x)(isoWeekday) || isoWeekday === true) ? adapter.startOf(value, 'isoWeek', isoWeekday) : adapter.startOf(value, round); } return +value; } function determineUnitForAutoTicks(minUnit, min, max, capacity) { const ilen = UNITS.length; for(let i = UNITS.indexOf(minUnit); i < ilen - 1; ++i){ const interval = INTERVALS[UNITS[i]]; const factor = interval.steps ? interval.steps : Number.MAX_SAFE_INTEGER; if (interval.common && Math.ceil((max - min) / (factor * interval.size)) <= capacity) { return UNITS[i]; } } return UNITS[ilen - 1]; } function determineUnitForFormatting(scale, numTicks, minUnit, min, max) { for(let i = UNITS.length - 1; i >= UNITS.indexOf(minUnit); i--){ const unit = UNITS[i]; if (INTERVALS[unit].common && scale._adapter.diff(max, min, unit) >= numTicks - 1) { return unit; } } return UNITS[minUnit ? UNITS.indexOf(minUnit) : 0]; } function determineMajorUnit(unit) { for(let i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i){ if (INTERVALS[UNITS[i]].common) { return UNITS[i]; } } } function addTick(ticks, time, timestamps) { if (!timestamps) { ticks[time] = true; } else if (timestamps.length) { const { lo , hi } = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aP)(timestamps, time); const timestamp = timestamps[lo] >= time ? timestamps[lo] : timestamps[hi]; ticks[timestamp] = true; } } function setMajorTicks(scale, ticks, map, majorUnit) { const adapter = scale._adapter; const first = +adapter.startOf(ticks[0].value, majorUnit); const last = ticks[ticks.length - 1].value; let major, index; for(major = first; major <= last; major = +adapter.add(major, 1, majorUnit)){ index = map[major]; if (index >= 0) { ticks[index].major = true; } } return ticks; } function ticksFromTimestamps(scale, values, majorUnit) { const ticks = []; const map = {}; const ilen = values.length; let i, value; for(i = 0; i < ilen; ++i){ value = values[i]; map[value] = i; ticks.push({ value, major: false }); } return ilen === 0 || !majorUnit ? ticks : setMajorTicks(scale, ticks, map, majorUnit); } class TimeScale extends Scale { static id = 'time'; static defaults = { bounds: 'data', adapters: {}, time: { parser: false, unit: false, round: false, isoWeekday: false, minUnit: 'millisecond', displayFormats: {} }, ticks: { source: 'auto', callback: false, major: { enabled: false } } }; constructor(props){ super(props); this._cache = { data: [], labels: [], all: [] }; this._unit = 'day'; this._majorUnit = undefined; this._offsets = {}; this._normalized = false; this._parseOpts = undefined; } init(scaleOpts, opts = {}) { const time = scaleOpts.time || (scaleOpts.time = {}); const adapter = this._adapter = new adapters._date(scaleOpts.adapters.date); adapter.init(opts); (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.ab)(time.displayFormats, adapter.formats()); this._parseOpts = { parser: time.parser, round: time.round, isoWeekday: time.isoWeekday }; super.init(scaleOpts); this._normalized = opts.normalized; } parse(raw, index) { if (raw === undefined) { return null; } return parse(this, raw); } beforeLayout() { super.beforeLayout(); this._cache = { data: [], labels: [], all: [] }; } determineDataLimits() { const options = this.options; const adapter = this._adapter; const unit = options.time.unit || 'day'; let { min , max , minDefined , maxDefined } = this.getUserBounds(); function _applyBounds(bounds) { if (!minDefined && !isNaN(bounds.min)) { min = Math.min(min, bounds.min); } if (!maxDefined && !isNaN(bounds.max)) { max = Math.max(max, bounds.max); } } if (!minDefined || !maxDefined) { _applyBounds(this._getLabelBounds()); if (options.bounds !== 'ticks' || options.ticks.source !== 'labels') { _applyBounds(this.getMinMax(false)); } } min = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(min) && !isNaN(min) ? min : +adapter.startOf(Date.now(), unit); max = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.g)(max) && !isNaN(max) ? max : +adapter.endOf(Date.now(), unit) + 1; this.min = Math.min(min, max - 1); this.max = Math.max(min + 1, max); } _getLabelBounds() { const arr = this.getLabelTimestamps(); let min = Number.POSITIVE_INFINITY; let max = Number.NEGATIVE_INFINITY; if (arr.length) { min = arr[0]; max = arr[arr.length - 1]; } return { min, max }; } buildTicks() { const options = this.options; const timeOpts = options.time; const tickOpts = options.ticks; const timestamps = tickOpts.source === 'labels' ? this.getLabelTimestamps() : this._generate(); if (options.bounds === 'ticks' && timestamps.length) { this.min = this._userMin || timestamps[0]; this.max = this._userMax || timestamps[timestamps.length - 1]; } const min = this.min; const max = this.max; const ticks = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.aO)(timestamps, min, max); this._unit = timeOpts.unit || (tickOpts.autoSkip ? determineUnitForAutoTicks(timeOpts.minUnit, this.min, this.max, this._getLabelCapacity(min)) : determineUnitForFormatting(this, ticks.length, timeOpts.minUnit, this.min, this.max)); this._majorUnit = !tickOpts.major.enabled || this._unit === 'year' ? undefined : determineMajorUnit(this._unit); this.initOffsets(timestamps); if (options.reverse) { ticks.reverse(); } return ticksFromTimestamps(this, ticks, this._majorUnit); } afterAutoSkip() { if (this.options.offsetAfterAutoskip) { this.initOffsets(this.ticks.map((tick)=>+tick.value)); } } initOffsets(timestamps = []) { let start = 0; let end = 0; let first, last; if (this.options.offset && timestamps.length) { first = this.getDecimalForValue(timestamps[0]); if (timestamps.length === 1) { start = 1 - first; } else { start = (this.getDecimalForValue(timestamps[1]) - first) / 2; } last = this.getDecimalForValue(timestamps[timestamps.length - 1]); if (timestamps.length === 1) { end = last; } else { end = (last - this.getDecimalForValue(timestamps[timestamps.length - 2])) / 2; } } const limit = timestamps.length < 3 ? 0.5 : 0.25; start = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.S)(start, 0, limit); end = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.S)(end, 0, limit); this._offsets = { start, end, factor: 1 / (start + 1 + end) }; } _generate() { const adapter = this._adapter; const min = this.min; const max = this.max; const options = this.options; const timeOpts = options.time; const minor = timeOpts.unit || determineUnitForAutoTicks(timeOpts.minUnit, min, max, this._getLabelCapacity(min)); const stepSize = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.v)(options.ticks.stepSize, 1); const weekday = minor === 'week' ? timeOpts.isoWeekday : false; const hasWeekday = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.x)(weekday) || weekday === true; const ticks = {}; let first = min; let time, count; if (hasWeekday) { first = +adapter.startOf(first, 'isoWeek', weekday); } first = +adapter.startOf(first, hasWeekday ? 'day' : minor); if (adapter.diff(max, min, minor) > 100000 * stepSize) { throw new Error(min + ' and ' + max + ' are too far apart with stepSize of ' + stepSize + ' ' + minor); } const timestamps = options.ticks.source === 'data' && this.getDataTimestamps(); for(time = first, count = 0; time < max; time = +adapter.add(time, stepSize, minor), count++){ addTick(ticks, time, timestamps); } if (time === max || options.bounds === 'ticks' || count === 1) { addTick(ticks, time, timestamps); } return Object.keys(ticks).sort((a, b)=>a - b).map((x)=>+x); } getLabelForValue(value) { const adapter = this._adapter; const timeOpts = this.options.time; if (timeOpts.tooltipFormat) { return adapter.format(value, timeOpts.tooltipFormat); } return adapter.format(value, timeOpts.displayFormats.datetime); } format(value, format) { const options = this.options; const formats = options.time.displayFormats; const unit = this._unit; const fmt = format || formats[unit]; return this._adapter.format(value, fmt); } _tickFormatFunction(time, index, ticks, format) { const options = this.options; const formatter = options.ticks.callback; if (formatter) { return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.Q)(formatter, [ time, index, ticks ], this); } const formats = options.time.displayFormats; const unit = this._unit; const majorUnit = this._majorUnit; const minorFormat = unit && formats[unit]; const majorFormat = majorUnit && formats[majorUnit]; const tick = ticks[index]; const major = majorUnit && majorFormat && tick && tick.major; return this._adapter.format(time, format || (major ? majorFormat : minorFormat)); } generateTickLabels(ticks) { let i, ilen, tick; for(i = 0, ilen = ticks.length; i < ilen; ++i){ tick = ticks[i]; tick.label = this._tickFormatFunction(tick.value, i, ticks); } } getDecimalForValue(value) { return value === null ? NaN : (value - this.min) / (this.max - this.min); } getPixelForValue(value) { const offsets = this._offsets; const pos = this.getDecimalForValue(value); return this.getPixelForDecimal((offsets.start + pos) * offsets.factor); } getValueForPixel(pixel) { const offsets = this._offsets; const pos = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end; return this.min + pos * (this.max - this.min); } _getLabelSize(label) { const ticksOpts = this.options.ticks; const tickLabelWidth = this.ctx.measureText(label).width; const angle = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.t)(this.isHorizontal() ? ticksOpts.maxRotation : ticksOpts.minRotation); const cosRotation = Math.cos(angle); const sinRotation = Math.sin(angle); const tickFontSize = this._resolveTickFontOptions(0).size; return { w: tickLabelWidth * cosRotation + tickFontSize * sinRotation, h: tickLabelWidth * sinRotation + tickFontSize * cosRotation }; } _getLabelCapacity(exampleTime) { const timeOpts = this.options.time; const displayFormats = timeOpts.displayFormats; const format = displayFormats[timeOpts.unit] || displayFormats.millisecond; const exampleLabel = this._tickFormatFunction(exampleTime, 0, ticksFromTimestamps(this, [ exampleTime ], this._majorUnit), format); const size = this._getLabelSize(exampleLabel); const capacity = Math.floor(this.isHorizontal() ? this.width / size.w : this.height / size.h) - 1; return capacity > 0 ? capacity : 1; } getDataTimestamps() { let timestamps = this._cache.data || []; let i, ilen; if (timestamps.length) { return timestamps; } const metas = this.getMatchingVisibleMetas(); if (this._normalized && metas.length) { return this._cache.data = metas[0].controller.getAllParsedValues(this); } for(i = 0, ilen = metas.length; i < ilen; ++i){ timestamps = timestamps.concat(metas[i].controller.getAllParsedValues(this)); } return this._cache.data = this.normalize(timestamps); } getLabelTimestamps() { const timestamps = this._cache.labels || []; let i, ilen; if (timestamps.length) { return timestamps; } const labels = this.getLabels(); for(i = 0, ilen = labels.length; i < ilen; ++i){ timestamps.push(parse(this, labels[i])); } return this._cache.labels = this._normalized ? timestamps : this.normalize(timestamps); } normalize(values) { return (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__._)(values.sort(sorter)); } } function interpolate(table, val, reverse) { let lo = 0; let hi = table.length - 1; let prevSource, nextSource, prevTarget, nextTarget; if (reverse) { if (val >= table[lo].pos && val <= table[hi].pos) { ({ lo , hi } = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.B)(table, 'pos', val)); } ({ pos: prevSource , time: prevTarget } = table[lo]); ({ pos: nextSource , time: nextTarget } = table[hi]); } else { if (val >= table[lo].time && val <= table[hi].time) { ({ lo , hi } = (0,_chunks_helpers_segment_js__WEBPACK_IMPORTED_MODULE_0__.B)(table, 'time', val)); } ({ time: prevSource , pos: prevTarget } = table[lo]); ({ time: nextSource , pos: nextTarget } = table[hi]); } const span = nextSource - prevSource; return span ? prevTarget + (nextTarget - prevTarget) * (val - prevSource) / span : prevTarget; } class TimeSeriesScale extends TimeScale { static id = 'timeseries'; static defaults = TimeScale.defaults; constructor(props){ super(props); this._table = []; this._minPos = undefined; this._tableRange = undefined; } initOffsets() { const timestamps = this._getTimestampsForTable(); const table = this._table = this.buildLookupTable(timestamps); this._minPos = interpolate(table, this.min); this._tableRange = interpolate(table, this.max) - this._minPos; super.initOffsets(timestamps); } buildLookupTable(timestamps) { const { min , max } = this; const items = []; const table = []; let i, ilen, prev, curr, next; for(i = 0, ilen = timestamps.length; i < ilen; ++i){ curr = timestamps[i]; if (curr >= min && curr <= max) { items.push(curr); } } if (items.length < 2) { return [ { time: min, pos: 0 }, { time: max, pos: 1 } ]; } for(i = 0, ilen = items.length; i < ilen; ++i){ next = items[i + 1]; prev = items[i - 1]; curr = items[i]; if (Math.round((next + prev) / 2) !== curr) { table.push({ time: curr, pos: i / (ilen - 1) }); } } return table; } _getTimestampsForTable() { let timestamps = this._cache.all || []; if (timestamps.length) { return timestamps; } const data = this.getDataTimestamps(); const label = this.getLabelTimestamps(); if (data.length && label.length) { timestamps = this.normalize(data.concat(label)); } else { timestamps = data.length ? data : label; } timestamps = this._cache.all = timestamps; return timestamps; } getDecimalForValue(value) { return (interpolate(this._table, value) - this._minPos) / this._tableRange; } getValueForPixel(pixel) { const offsets = this._offsets; const decimal = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end; return interpolate(this._table, decimal * this._tableRange + this._minPos, true); } } var scales = /*#__PURE__*/Object.freeze({ __proto__: null, CategoryScale: CategoryScale, LinearScale: LinearScale, LogarithmicScale: LogarithmicScale, RadialLinearScale: RadialLinearScale, TimeScale: TimeScale, TimeSeriesScale: TimeSeriesScale }); const registerables = [ controllers, elements, plugins, scales ]; //# sourceMappingURL=chart.js.map /***/ }), /***/ "./node_modules/chart.js/dist/chunks/helpers.segment.js": /*!**************************************************************!*\ !*** ./node_modules/chart.js/dist/chunks/helpers.segment.js ***! \**************************************************************/ /***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => { __webpack_require__.r(__webpack_exports__); /* harmony export */ __webpack_require__.d(__webpack_exports__, { /* harmony export */ "$": () => (/* binding */ unclipArea), /* harmony export */ "A": () => (/* binding */ _rlookupByKey), /* harmony export */ "B": () => (/* binding */ _lookupByKey), /* harmony export */ "C": () => (/* binding */ _isPointInArea), /* harmony export */ "D": () => (/* binding */ getAngleFromPoint), /* harmony export */ "E": () => (/* binding */ toPadding), /* harmony export */ "F": () => (/* binding */ each), /* harmony export */ "G": () => (/* binding */ getMaximumSize), /* harmony export */ "H": () => (/* binding */ HALF_PI), /* harmony export */ "I": () => (/* binding */ _getParentNode), /* harmony export */ "J": () => (/* binding */ readUsedSize), /* harmony export */ "K": () => (/* binding */ supportsEventListenerOptions), /* harmony export */ "L": () => (/* binding */ throttled), /* harmony export */ "M": () => (/* binding */ _isDomSupported), /* harmony export */ "N": () => (/* binding */ _factorize), /* harmony export */ "O": () => (/* binding */ finiteOrDefault), /* harmony export */ "P": () => (/* binding */ PI), /* harmony export */ "Q": () => (/* binding */ callback), /* harmony export */ "R": () => (/* binding */ _addGrace), /* harmony export */ "S": () => (/* binding */ _limitValue), /* harmony export */ "T": () => (/* binding */ TAU), /* harmony export */ "U": () => (/* binding */ toDegrees), /* harmony export */ "V": () => (/* binding */ _measureText), /* harmony export */ "W": () => (/* binding */ _int16Range), /* harmony export */ "X": () => (/* binding */ _alignPixel), /* harmony export */ "Y": () => (/* binding */ clipArea), /* harmony export */ "Z": () => (/* binding */ renderText), /* harmony export */ "_": () => (/* binding */ _arrayUnique), /* harmony export */ "a": () => (/* binding */ resolve), /* harmony export */ "a$": () => (/* binding */ fontString), /* harmony export */ "a0": () => (/* binding */ toFont), /* harmony export */ "a1": () => (/* binding */ _toLeftRightCenter), /* harmony export */ "a2": () => (/* binding */ _alignStartEnd), /* harmony export */ "a3": () => (/* binding */ overrides), /* harmony export */ "a4": () => (/* binding */ merge), /* harmony export */ "a5": () => (/* binding */ _capitalize), /* harmony export */ "a6": () => (/* binding */ descriptors), /* harmony export */ "a7": () => (/* binding */ isFunction), /* harmony export */ "a8": () => (/* binding */ _attachContext), /* harmony export */ "a9": () => (/* binding */ _createResolver), /* harmony export */ "aA": () => (/* binding */ overrideTextDirection), /* harmony export */ "aB": () => (/* binding */ _textX), /* harmony export */ "aC": () => (/* binding */ restoreTextDirection), /* harmony export */ "aD": () => (/* binding */ drawPointLegend), /* harmony export */ "aE": () => (/* binding */ distanceBetweenPoints), /* harmony export */ "aF": () => (/* binding */ noop), /* harmony export */ "aG": () => (/* binding */ _setMinAndMaxByKey), /* harmony export */ "aH": () => (/* binding */ niceNum), /* harmony export */ "aI": () => (/* binding */ almostWhole), /* harmony export */ "aJ": () => (/* binding */ almostEquals), /* harmony export */ "aK": () => (/* binding */ _decimalPlaces), /* harmony export */ "aL": () => (/* binding */ Ticks), /* harmony export */ "aM": () => (/* binding */ log10), /* harmony export */ "aN": () => (/* binding */ _longestText), /* harmony export */ "aO": () => (/* binding */ _filterBetween), /* harmony export */ "aP": () => (/* binding */ _lookup), /* harmony export */ "aQ": () => (/* binding */ isPatternOrGradient), /* harmony export */ "aR": () => (/* binding */ getHoverColor), /* harmony export */ "aS": () => (/* binding */ clone), /* harmony export */ "aT": () => (/* binding */ _merger), /* harmony export */ "aU": () => (/* binding */ _mergerIf), /* harmony export */ "aV": () => (/* binding */ _deprecated), /* harmony export */ "aW": () => (/* binding */ _splitKey), /* harmony export */ "aX": () => (/* binding */ toFontString), /* harmony export */ "aY": () => (/* binding */ splineCurve), /* harmony export */ "aZ": () => (/* binding */ splineCurveMonotone), /* harmony export */ "a_": () => (/* binding */ getStyle), /* harmony export */ "aa": () => (/* binding */ _descriptors), /* harmony export */ "ab": () => (/* binding */ mergeIf), /* harmony export */ "ac": () => (/* binding */ uid), /* harmony export */ "ad": () => (/* binding */ debounce), /* harmony export */ "ae": () => (/* binding */ retinaScale), /* harmony export */ "af": () => (/* binding */ clearCanvas), /* harmony export */ "ag": () => (/* binding */ setsEqual), /* harmony export */ "ah": () => (/* binding */ _elementsEqual), /* harmony export */ "ai": () => (/* binding */ _isClickEvent), /* harmony export */ "aj": () => (/* binding */ _isBetween), /* harmony export */ "ak": () => (/* binding */ _readValueToProps), /* harmony export */ "al": () => (/* binding */ _updateBezierControlPoints), /* harmony export */ "am": () => (/* binding */ _computeSegments), /* harmony export */ "an": () => (/* binding */ _boundSegments), /* harmony export */ "ao": () => (/* binding */ _steppedInterpolation), /* harmony export */ "ap": () => (/* binding */ _bezierInterpolation), /* harmony export */ "aq": () => (/* binding */ _pointInLine), /* harmony export */ "ar": () => (/* binding */ _steppedLineTo), /* harmony export */ "as": () => (/* binding */ _bezierCurveTo), /* harmony export */ "at": () => (/* binding */ drawPoint), /* harmony export */ "au": () => (/* binding */ addRoundedRectPath), /* harmony export */ "av": () => (/* binding */ toTRBL), /* harmony export */ "aw": () => (/* binding */ toTRBLCorners), /* harmony export */ "ax": () => (/* binding */ _boundSegment), /* harmony export */ "ay": () => (/* binding */ _normalizeAngle), /* harmony export */ "az": () => (/* binding */ getRtlAdapter), /* harmony export */ "b": () => (/* binding */ isArray), /* harmony export */ "b0": () => (/* binding */ toLineHeight), /* harmony export */ "b1": () => (/* binding */ PITAU), /* harmony export */ "b2": () => (/* binding */ INFINITY), /* harmony export */ "b3": () => (/* binding */ RAD_PER_DEG), /* harmony export */ "b4": () => (/* binding */ QUARTER_PI), /* harmony export */ "b5": () => (/* binding */ TWO_THIRDS_PI), /* harmony export */ "b6": () => (/* binding */ _angleDiff), /* harmony export */ "c": () => (/* binding */ color), /* harmony export */ "d": () => (/* binding */ defaults), /* harmony export */ "e": () => (/* binding */ effects), /* harmony export */ "f": () => (/* binding */ resolveObjectKey), /* harmony export */ "g": () => (/* binding */ isNumberFinite), /* harmony export */ "h": () => (/* binding */ defined), /* harmony export */ "i": () => (/* binding */ isObject), /* harmony export */ "j": () => (/* binding */ createContext), /* harmony export */ "k": () => (/* binding */ isNullOrUndef), /* harmony export */ "l": () => (/* binding */ listenArrayEvents), /* harmony export */ "m": () => (/* binding */ toPercentage), /* harmony export */ "n": () => (/* binding */ toDimension), /* harmony export */ "o": () => (/* binding */ formatNumber), /* harmony export */ "p": () => (/* binding */ _angleBetween), /* harmony export */ "q": () => (/* binding */ _getStartAndCountOfVisiblePoints), /* harmony export */ "r": () => (/* binding */ requestAnimFrame), /* harmony export */ "s": () => (/* binding */ sign), /* harmony export */ "t": () => (/* binding */ toRadians), /* harmony export */ "u": () => (/* binding */ unlistenArrayEvents), /* harmony export */ "v": () => (/* binding */ valueOrDefault), /* harmony export */ "w": () => (/* binding */ _scaleRangesChanged), /* harmony export */ "x": () => (/* binding */ isNumber), /* harmony export */ "y": () => (/* binding */ _parseObjectDataRadialScale), /* harmony export */ "z": () => (/* binding */ getRelativePosition) /* harmony export */ }); /* harmony import */ var _kurkle_color__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! @kurkle/color */ "./node_modules/@kurkle/color/dist/color.esm.js"); /*! * Chart.js v4.3.0 * https://www.chartjs.org * (c) 2023 Chart.js Contributors * Released under the MIT License */ /** * @namespace Chart.helpers */ /** * An empty function that can be used, for example, for optional callback. */ function noop() { /* noop */ } /** * Returns a unique id, sequentially generated from a global variable. */ const uid = (()=>{ let id = 0; return ()=>id++; })(); /** * Returns true if `value` is neither null nor undefined, else returns false. * @param value - The value to test. * @since 2.7.0 */ function isNullOrUndef(value) { return value === null || typeof value === 'undefined'; } /** * Returns true if `value` is an array (including typed arrays), else returns false. * @param value - The value to test. * @function */ function isArray(value) { if (Array.isArray && Array.isArray(value)) { return true; } const type = Object.prototype.toString.call(value); if (type.slice(0, 7) === '[object' && type.slice(-6) === 'Array]') { return true; } return false; } /** * Returns true if `value` is an object (excluding null), else returns false. * @param value - The value to test. * @since 2.7.0 */ function isObject(value) { return value !== null && Object.prototype.toString.call(value) === '[object Object]'; } /** * Returns true if `value` is a finite number, else returns false * @param value - The value to test. */ function isNumberFinite(value) { return (typeof value === 'number' || value instanceof Number) && isFinite(+value); } /** * Returns `value` if finite, else returns `defaultValue`. * @param value - The value to return if defined. * @param defaultValue - The value to return if `value` is not finite. */ function finiteOrDefault(value, defaultValue) { return isNumberFinite(value) ? value : defaultValue; } /** * Returns `value` if defined, else returns `defaultValue`. * @param value - The value to return if defined. * @param defaultValue - The value to return if `value` is undefined. */ function valueOrDefault(value, defaultValue) { return typeof value === 'undefined' ? defaultValue : value; } const toPercentage = (value, dimension)=>typeof value === 'string' && value.endsWith('%') ? parseFloat(value) / 100 : +value / dimension; const toDimension = (value, dimension)=>typeof value === 'string' && value.endsWith('%') ? parseFloat(value) / 100 * dimension : +value; /** * Calls `fn` with the given `args` in the scope defined by `thisArg` and returns the * value returned by `fn`. If `fn` is not a function, this method returns undefined. * @param fn - The function to call. * @param args - The arguments with which `fn` should be called. * @param [thisArg] - The value of `this` provided for the call to `fn`. */ function callback(fn, args, thisArg) { if (fn && typeof fn.call === 'function') { return fn.apply(thisArg, args); } } function each(loopable, fn, thisArg, reverse) { let i, len, keys; if (isArray(loopable)) { len = loopable.length; if (reverse) { for(i = len - 1; i >= 0; i--){ fn.call(thisArg, loopable[i], i); } } else { for(i = 0; i < len; i++){ fn.call(thisArg, loopable[i], i); } } } else if (isObject(loopable)) { keys = Object.keys(loopable); len = keys.length; for(i = 0; i < len; i++){ fn.call(thisArg, loopable[keys[i]], keys[i]); } } } /** * Returns true if the `a0` and `a1` arrays have the same content, else returns false. * @param a0 - The array to compare * @param a1 - The array to compare * @private */ function _elementsEqual(a0, a1) { let i, ilen, v0, v1; if (!a0 || !a1 || a0.length !== a1.length) { return false; } for(i = 0, ilen = a0.length; i < ilen; ++i){ v0 = a0[i]; v1 = a1[i]; if (v0.datasetIndex !== v1.datasetIndex || v0.index !== v1.index) { return false; } } return true; } /** * Returns a deep copy of `source` without keeping references on objects and arrays. * @param source - The value to clone. */ function clone(source) { if (isArray(source)) { return source.map(clone); } if (isObject(source)) { const target = Object.create(null); const keys = Object.keys(source); const klen = keys.length; let k = 0; for(; k < klen; ++k){ target[keys[k]] = clone(source[keys[k]]); } return target; } return source; } function isValidKey(key) { return [ '__proto__', 'prototype', 'constructor' ].indexOf(key) === -1; } /** * The default merger when Chart.helpers.merge is called without merger option. * Note(SB): also used by mergeConfig and mergeScaleConfig as fallback. * @private */ function _merger(key, target, source, options) { if (!isValidKey(key)) { return; } const tval = target[key]; const sval = source[key]; if (isObject(tval) && isObject(sval)) { // eslint-disable-next-line @typescript-eslint/no-use-before-define merge(tval, sval, options); } else { target[key] = clone(sval); } } function merge(target, source, options) { const sources = isArray(source) ? source : [ source ]; const ilen = sources.length; if (!isObject(target)) { return target; } options = options || {}; const merger = options.merger || _merger; let current; for(let i = 0; i < ilen; ++i){ current = sources[i]; if (!isObject(current)) { continue; } const keys = Object.keys(current); for(let k = 0, klen = keys.length; k < klen; ++k){ merger(keys[k], target, current, options); } } return target; } function mergeIf(target, source) { // eslint-disable-next-line @typescript-eslint/no-use-before-define return merge(target, source, { merger: _mergerIf }); } /** * Merges source[key] in target[key] only if target[key] is undefined. * @private */ function _mergerIf(key, target, source) { if (!isValidKey(key)) { return; } const tval = target[key]; const sval = source[key]; if (isObject(tval) && isObject(sval)) { mergeIf(tval, sval); } else if (!Object.prototype.hasOwnProperty.call(target, key)) { target[key] = clone(sval); } } /** * @private */ function _deprecated(scope, value, previous, current) { if (value !== undefined) { console.warn(scope + ': "' + previous + '" is deprecated. Please use "' + current + '" instead'); } } // resolveObjectKey resolver cache const keyResolvers = { // Chart.helpers.core resolveObjectKey should resolve empty key to root object '': (v)=>v, // default resolvers x: (o)=>o.x, y: (o)=>o.y }; /** * @private */ function _splitKey(key) { const parts = key.split('.'); const keys = []; let tmp = ''; for (const part of parts){ tmp += part; if (tmp.endsWith('\\')) { tmp = tmp.slice(0, -1) + '.'; } else { keys.push(tmp); tmp = ''; } } return keys; } function _getKeyResolver(key) { const keys = _splitKey(key); return (obj)=>{ for (const k of keys){ if (k === '') { break; } obj = obj && obj[k]; } return obj; }; } function resolveObjectKey(obj, key) { const resolver = keyResolvers[key] || (keyResolvers[key] = _getKeyResolver(key)); return resolver(obj); } /** * @private */ function _capitalize(str) { return str.charAt(0).toUpperCase() + str.slice(1); } const defined = (value)=>typeof value !== 'undefined'; const isFunction = (value)=>typeof value === 'function'; // Adapted from https://stackoverflow.com/questions/31128855/comparing-ecma6-sets-for-equality#31129384 const setsEqual = (a, b)=>{ if (a.size !== b.size) { return false; } for (const item of a){ if (!b.has(item)) { return false; } } return true; }; /** * @param e - The event * @private */ function _isClickEvent(e) { return e.type === 'mouseup' || e.type === 'click' || e.type === 'contextmenu'; } /** * @alias Chart.helpers.math * @namespace */ const PI = Math.PI; const TAU = 2 * PI; const PITAU = TAU + PI; const INFINITY = Number.POSITIVE_INFINITY; const RAD_PER_DEG = PI / 180; const HALF_PI = PI / 2; const QUARTER_PI = PI / 4; const TWO_THIRDS_PI = PI * 2 / 3; const log10 = Math.log10; const sign = Math.sign; function almostEquals(x, y, epsilon) { return Math.abs(x - y) < epsilon; } /** * Implementation of the nice number algorithm used in determining where axis labels will go */ function niceNum(range) { const roundedRange = Math.round(range); range = almostEquals(range, roundedRange, range / 1000) ? roundedRange : range; const niceRange = Math.pow(10, Math.floor(log10(range))); const fraction = range / niceRange; const niceFraction = fraction <= 1 ? 1 : fraction <= 2 ? 2 : fraction <= 5 ? 5 : 10; return niceFraction * niceRange; } /** * Returns an array of factors sorted from 1 to sqrt(value) * @private */ function _factorize(value) { const result = []; const sqrt = Math.sqrt(value); let i; for(i = 1; i < sqrt; i++){ if (value % i === 0) { result.push(i); result.push(value / i); } } if (sqrt === (sqrt | 0)) { result.push(sqrt); } result.sort((a, b)=>a - b).pop(); return result; } function isNumber(n) { return !isNaN(parseFloat(n)) && isFinite(n); } function almostWhole(x, epsilon) { const rounded = Math.round(x); return rounded - epsilon <= x && rounded + epsilon >= x; } /** * @private */ function _setMinAndMaxByKey(array, target, property) { let i, ilen, value; for(i = 0, ilen = array.length; i < ilen; i++){ value = array[i][property]; if (!isNaN(value)) { target.min = Math.min(target.min, value); target.max = Math.max(target.max, value); } } } function toRadians(degrees) { return degrees * (PI / 180); } function toDegrees(radians) { return radians * (180 / PI); } /** * Returns the number of decimal places * i.e. the number of digits after the decimal point, of the value of this Number. * @param x - A number. * @returns The number of decimal places. * @private */ function _decimalPlaces(x) { if (!isNumberFinite(x)) { return; } let e = 1; let p = 0; while(Math.round(x * e) / e !== x){ e *= 10; p++; } return p; } // Gets the angle from vertical upright to the point about a centre. function getAngleFromPoint(centrePoint, anglePoint) { const distanceFromXCenter = anglePoint.x - centrePoint.x; const distanceFromYCenter = anglePoint.y - centrePoint.y; const radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter); let angle = Math.atan2(distanceFromYCenter, distanceFromXCenter); if (angle < -0.5 * PI) { angle += TAU; // make sure the returned angle is in the range of (-PI/2, 3PI/2] } return { angle, distance: radialDistanceFromCenter }; } function distanceBetweenPoints(pt1, pt2) { return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2)); } /** * Shortest distance between angles, in either direction. * @private */ function _angleDiff(a, b) { return (a - b + PITAU) % TAU - PI; } /** * Normalize angle to be between 0 and 2*PI * @private */ function _normalizeAngle(a) { return (a % TAU + TAU) % TAU; } /** * @private */ function _angleBetween(angle, start, end, sameAngleIsFullCircle) { const a = _normalizeAngle(angle); const s = _normalizeAngle(start); const e = _normalizeAngle(end); const angleToStart = _normalizeAngle(s - a); const angleToEnd = _normalizeAngle(e - a); const startToAngle = _normalizeAngle(a - s); const endToAngle = _normalizeAngle(a - e); return a === s || a === e || sameAngleIsFullCircle && s === e || angleToStart > angleToEnd && startToAngle < endToAngle; } /** * Limit `value` between `min` and `max` * @param value * @param min * @param max * @private */ function _limitValue(value, min, max) { return Math.max(min, Math.min(max, value)); } /** * @param {number} value * @private */ function _int16Range(value) { return _limitValue(value, -32768, 32767); } /** * @param value * @param start * @param end * @param [epsilon] * @private */ function _isBetween(value, start, end, epsilon = 1e-6) { return value >= Math.min(start, end) - epsilon && value <= Math.max(start, end) + epsilon; } function _lookup(table, value, cmp) { cmp = cmp || ((index)=>table[index] < value); let hi = table.length - 1; let lo = 0; let mid; while(hi - lo > 1){ mid = lo + hi >> 1; if (cmp(mid)) { lo = mid; } else { hi = mid; } } return { lo, hi }; } /** * Binary search * @param table - the table search. must be sorted! * @param key - property name for the value in each entry * @param value - value to find * @param last - lookup last index * @private */ const _lookupByKey = (table, key, value, last)=>_lookup(table, value, last ? (index)=>{ const ti = table[index][key]; return ti < value || ti === value && table[index + 1][key] === value; } : (index)=>table[index][key] < value); /** * Reverse binary search * @param table - the table search. must be sorted! * @param key - property name for the value in each entry * @param value - value to find * @private */ const _rlookupByKey = (table, key, value)=>_lookup(table, value, (index)=>table[index][key] >= value); /** * Return subset of `values` between `min` and `max` inclusive. * Values are assumed to be in sorted order. * @param values - sorted array of values * @param min - min value * @param max - max value */ function _filterBetween(values, min, max) { let start = 0; let end = values.length; while(start < end && values[start] < min){ start++; } while(end > start && values[end - 1] > max){ end--; } return start > 0 || end < values.length ? values.slice(start, end) : values; } const arrayEvents = [ 'push', 'pop', 'shift', 'splice', 'unshift' ]; function listenArrayEvents(array, listener) { if (array._chartjs) { array._chartjs.listeners.push(listener); return; } Object.defineProperty(array, '_chartjs', { configurable: true, enumerable: false, value: { listeners: [ listener ] } }); arrayEvents.forEach((key)=>{ const method = '_onData' + _capitalize(key); const base = array[key]; Object.defineProperty(array, key, { configurable: true, enumerable: false, value (...args) { const res = base.apply(this, args); array._chartjs.listeners.forEach((object)=>{ if (typeof object[method] === 'function') { object[method](...args); } }); return res; } }); }); } function unlistenArrayEvents(array, listener) { const stub = array._chartjs; if (!stub) { return; } const listeners = stub.listeners; const index = listeners.indexOf(listener); if (index !== -1) { listeners.splice(index, 1); } if (listeners.length > 0) { return; } arrayEvents.forEach((key)=>{ delete array[key]; }); delete array._chartjs; } /** * @param items */ function _arrayUnique(items) { const set = new Set(items); if (set.size === items.length) { return items; } return Array.from(set); } function fontString(pixelSize, fontStyle, fontFamily) { return fontStyle + ' ' + pixelSize + 'px ' + fontFamily; } /** * Request animation polyfill */ const requestAnimFrame = function() { if (typeof window === 'undefined') { return function(callback) { return callback(); }; } return window.requestAnimationFrame; }(); /** * Throttles calling `fn` once per animation frame * Latest arguments are used on the actual call */ function throttled(fn, thisArg) { let argsToUse = []; let ticking = false; return function(...args) { // Save the args for use later argsToUse = args; if (!ticking) { ticking = true; requestAnimFrame.call(window, ()=>{ ticking = false; fn.apply(thisArg, argsToUse); }); } }; } /** * Debounces calling `fn` for `delay` ms */ function debounce(fn, delay) { let timeout; return function(...args) { if (delay) { clearTimeout(timeout); timeout = setTimeout(fn, delay, args); } else { fn.apply(this, args); } return delay; }; } /** * Converts 'start' to 'left', 'end' to 'right' and others to 'center' * @private */ const _toLeftRightCenter = (align)=>align === 'start' ? 'left' : align === 'end' ? 'right' : 'center'; /** * Returns `start`, `end` or `(start + end) / 2` depending on `align`. Defaults to `center` * @private */ const _alignStartEnd = (align, start, end)=>align === 'start' ? start : align === 'end' ? end : (start + end) / 2; /** * Returns `left`, `right` or `(left + right) / 2` depending on `align`. Defaults to `left` * @private */ const _textX = (align, left, right, rtl)=>{ const check = rtl ? 'left' : 'right'; return align === check ? right : align === 'center' ? (left + right) / 2 : left; }; /** * Return start and count of visible points. * @private */ function _getStartAndCountOfVisiblePoints(meta, points, animationsDisabled) { const pointCount = points.length; let start = 0; let count = pointCount; if (meta._sorted) { const { iScale , _parsed } = meta; const axis = iScale.axis; const { min , max , minDefined , maxDefined } = iScale.getUserBounds(); if (minDefined) { start = _limitValue(Math.min(// @ts-expect-error Need to type _parsed _lookupByKey(_parsed, iScale.axis, min).lo, // @ts-expect-error Need to fix types on _lookupByKey animationsDisabled ? pointCount : _lookupByKey(points, axis, iScale.getPixelForValue(min)).lo), 0, pointCount - 1); } if (maxDefined) { count = _limitValue(Math.max(// @ts-expect-error Need to type _parsed _lookupByKey(_parsed, iScale.axis, max, true).hi + 1, // @ts-expect-error Need to fix types on _lookupByKey animationsDisabled ? 0 : _lookupByKey(points, axis, iScale.getPixelForValue(max), true).hi + 1), start, pointCount) - start; } else { count = pointCount - start; } } return { start, count }; } /** * Checks if the scale ranges have changed. * @param {object} meta - dataset meta. * @returns {boolean} * @private */ function _scaleRangesChanged(meta) { const { xScale , yScale , _scaleRanges } = meta; const newRanges = { xmin: xScale.min, xmax: xScale.max, ymin: yScale.min, ymax: yScale.max }; if (!_scaleRanges) { meta._scaleRanges = newRanges; return true; } const changed = _scaleRanges.xmin !== xScale.min || _scaleRanges.xmax !== xScale.max || _scaleRanges.ymin !== yScale.min || _scaleRanges.ymax !== yScale.max; Object.assign(_scaleRanges, newRanges); return changed; } const atEdge = (t)=>t === 0 || t === 1; const elasticIn = (t, s, p)=>-(Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * TAU / p)); const elasticOut = (t, s, p)=>Math.pow(2, -10 * t) * Math.sin((t - s) * TAU / p) + 1; /** * Easing functions adapted from Robert Penner's easing equations. * @namespace Chart.helpers.easing.effects * @see http://www.robertpenner.com/easing/ */ const effects = { linear: (t)=>t, easeInQuad: (t)=>t * t, easeOutQuad: (t)=>-t * (t - 2), easeInOutQuad: (t)=>(t /= 0.5) < 1 ? 0.5 * t * t : -0.5 * (--t * (t - 2) - 1), easeInCubic: (t)=>t * t * t, easeOutCubic: (t)=>(t -= 1) * t * t + 1, easeInOutCubic: (t)=>(t /= 0.5) < 1 ? 0.5 * t * t * t : 0.5 * ((t -= 2) * t * t + 2), easeInQuart: (t)=>t * t * t * t, easeOutQuart: (t)=>-((t -= 1) * t * t * t - 1), easeInOutQuart: (t)=>(t /= 0.5) < 1 ? 0.5 * t * t * t * t : -0.5 * ((t -= 2) * t * t * t - 2), easeInQuint: (t)=>t * t * t * t * t, easeOutQuint: (t)=>(t -= 1) * t * t * t * t + 1, easeInOutQuint: (t)=>(t /= 0.5) < 1 ? 0.5 * t * t * t * t * t : 0.5 * ((t -= 2) * t * t * t * t + 2), easeInSine: (t)=>-Math.cos(t * HALF_PI) + 1, easeOutSine: (t)=>Math.sin(t * HALF_PI), easeInOutSine: (t)=>-0.5 * (Math.cos(PI * t) - 1), easeInExpo: (t)=>t === 0 ? 0 : Math.pow(2, 10 * (t - 1)), easeOutExpo: (t)=>t === 1 ? 1 : -Math.pow(2, -10 * t) + 1, easeInOutExpo: (t)=>atEdge(t) ? t : t < 0.5 ? 0.5 * Math.pow(2, 10 * (t * 2 - 1)) : 0.5 * (-Math.pow(2, -10 * (t * 2 - 1)) + 2), easeInCirc: (t)=>t >= 1 ? t : -(Math.sqrt(1 - t * t) - 1), easeOutCirc: (t)=>Math.sqrt(1 - (t -= 1) * t), easeInOutCirc: (t)=>(t /= 0.5) < 1 ? -0.5 * (Math.sqrt(1 - t * t) - 1) : 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1), easeInElastic: (t)=>atEdge(t) ? t : elasticIn(t, 0.075, 0.3), easeOutElastic: (t)=>atEdge(t) ? t : elasticOut(t, 0.075, 0.3), easeInOutElastic (t) { const s = 0.1125; const p = 0.45; return atEdge(t) ? t : t < 0.5 ? 0.5 * elasticIn(t * 2, s, p) : 0.5 + 0.5 * elasticOut(t * 2 - 1, s, p); }, easeInBack (t) { const s = 1.70158; return t * t * ((s + 1) * t - s); }, easeOutBack (t) { const s = 1.70158; return (t -= 1) * t * ((s + 1) * t + s) + 1; }, easeInOutBack (t) { let s = 1.70158; if ((t /= 0.5) < 1) { return 0.5 * (t * t * (((s *= 1.525) + 1) * t - s)); } return 0.5 * ((t -= 2) * t * (((s *= 1.525) + 1) * t + s) + 2); }, easeInBounce: (t)=>1 - effects.easeOutBounce(1 - t), easeOutBounce (t) { const m = 7.5625; const d = 2.75; if (t < 1 / d) { return m * t * t; } if (t < 2 / d) { return m * (t -= 1.5 / d) * t + 0.75; } if (t < 2.5 / d) { return m * (t -= 2.25 / d) * t + 0.9375; } return m * (t -= 2.625 / d) * t + 0.984375; }, easeInOutBounce: (t)=>t < 0.5 ? effects.easeInBounce(t * 2) * 0.5 : effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5 }; function isPatternOrGradient(value) { if (value && typeof value === 'object') { const type = value.toString(); return type === '[object CanvasPattern]' || type === '[object CanvasGradient]'; } return false; } function color(value) { return isPatternOrGradient(value) ? value : new _kurkle_color__WEBPACK_IMPORTED_MODULE_0__.Color(value); } function getHoverColor(value) { return isPatternOrGradient(value) ? value : new _kurkle_color__WEBPACK_IMPORTED_MODULE_0__.Color(value).saturate(0.5).darken(0.1).hexString(); } const numbers = [ 'x', 'y', 'borderWidth', 'radius', 'tension' ]; const colors = [ 'color', 'borderColor', 'backgroundColor' ]; function applyAnimationsDefaults(defaults) { defaults.set('animation', { delay: undefined, duration: 1000, easing: 'easeOutQuart', fn: undefined, from: undefined, loop: undefined, to: undefined, type: undefined }); defaults.describe('animation', { _fallback: false, _indexable: false, _scriptable: (name)=>name !== 'onProgress' && name !== 'onComplete' && name !== 'fn' }); defaults.set('animations', { colors: { type: 'color', properties: colors }, numbers: { type: 'number', properties: numbers } }); defaults.describe('animations', { _fallback: 'animation' }); defaults.set('transitions', { active: { animation: { duration: 400 } }, resize: { animation: { duration: 0 } }, show: { animations: { colors: { from: 'transparent' }, visible: { type: 'boolean', duration: 0 } } }, hide: { animations: { colors: { to: 'transparent' }, visible: { type: 'boolean', easing: 'linear', fn: (v)=>v | 0 } } } }); } function applyLayoutsDefaults(defaults) { defaults.set('layout', { autoPadding: true, padding: { top: 0, right: 0, bottom: 0, left: 0 } }); } const intlCache = new Map(); function getNumberFormat(locale, options) { options = options || {}; const cacheKey = locale + JSON.stringify(options); let formatter = intlCache.get(cacheKey); if (!formatter) { formatter = new Intl.NumberFormat(locale, options); intlCache.set(cacheKey, formatter); } return formatter; } function formatNumber(num, locale, options) { return getNumberFormat(locale, options).format(num); } const formatters = { values (value) { return isArray(value) ? value : '' + value; }, numeric (tickValue, index, ticks) { if (tickValue === 0) { return '0'; } const locale = this.chart.options.locale; let notation; let delta = tickValue; if (ticks.length > 1) { const maxTick = Math.max(Math.abs(ticks[0].value), Math.abs(ticks[ticks.length - 1].value)); if (maxTick < 1e-4 || maxTick > 1e+15) { notation = 'scientific'; } delta = calculateDelta(tickValue, ticks); } const logDelta = log10(Math.abs(delta)); const numDecimal = isNaN(logDelta) ? 1 : Math.max(Math.min(-1 * Math.floor(logDelta), 20), 0); const options = { notation, minimumFractionDigits: numDecimal, maximumFractionDigits: numDecimal }; Object.assign(options, this.options.ticks.format); return formatNumber(tickValue, locale, options); }, logarithmic (tickValue, index, ticks) { if (tickValue === 0) { return '0'; } const remain = ticks[index].significand || tickValue / Math.pow(10, Math.floor(log10(tickValue))); if ([ 1, 2, 3, 5, 10, 15 ].includes(remain) || index > 0.8 * ticks.length) { return formatters.numeric.call(this, tickValue, index, ticks); } return ''; } }; function calculateDelta(tickValue, ticks) { let delta = ticks.length > 3 ? ticks[2].value - ticks[1].value : ticks[1].value - ticks[0].value; if (Math.abs(delta) >= 1 && tickValue !== Math.floor(tickValue)) { delta = tickValue - Math.floor(tickValue); } return delta; } var Ticks = { formatters }; function applyScaleDefaults(defaults) { defaults.set('scale', { display: true, offset: false, reverse: false, beginAtZero: false, bounds: 'ticks', grace: 0, grid: { display: true, lineWidth: 1, drawOnChartArea: true, drawTicks: true, tickLength: 8, tickWidth: (_ctx, options)=>options.lineWidth, tickColor: (_ctx, options)=>options.color, offset: false }, border: { display: true, dash: [], dashOffset: 0.0, width: 1 }, title: { display: false, text: '', padding: { top: 4, bottom: 4 } }, ticks: { minRotation: 0, maxRotation: 50, mirror: false, textStrokeWidth: 0, textStrokeColor: '', padding: 3, display: true, autoSkip: true, autoSkipPadding: 3, labelOffset: 0, callback: Ticks.formatters.values, minor: {}, major: {}, align: 'center', crossAlign: 'near', showLabelBackdrop: false, backdropColor: 'rgba(255, 255, 255, 0.75)', backdropPadding: 2 } }); defaults.route('scale.ticks', 'color', '', 'color'); defaults.route('scale.grid', 'color', '', 'borderColor'); defaults.route('scale.border', 'color', '', 'borderColor'); defaults.route('scale.title', 'color', '', 'color'); defaults.describe('scale', { _fallback: false, _scriptable: (name)=>!name.startsWith('before') && !name.startsWith('after') && name !== 'callback' && name !== 'parser', _indexable: (name)=>name !== 'borderDash' && name !== 'tickBorderDash' && name !== 'dash' }); defaults.describe('scales', { _fallback: 'scale' }); defaults.describe('scale.ticks', { _scriptable: (name)=>name !== 'backdropPadding' && name !== 'callback', _indexable: (name)=>name !== 'backdropPadding' }); } const overrides = Object.create(null); const descriptors = Object.create(null); function getScope$1(node, key) { if (!key) { return node; } const keys = key.split('.'); for(let i = 0, n = keys.length; i < n; ++i){ const k = keys[i]; node = node[k] || (node[k] = Object.create(null)); } return node; } function set(root, scope, values) { if (typeof scope === 'string') { return merge(getScope$1(root, scope), values); } return merge(getScope$1(root, ''), scope); } class Defaults { constructor(_descriptors, _appliers){ this.animation = undefined; this.backgroundColor = 'rgba(0,0,0,0.1)'; this.borderColor = 'rgba(0,0,0,0.1)'; this.color = '#666'; this.datasets = {}; this.devicePixelRatio = (context)=>context.chart.platform.getDevicePixelRatio(); this.elements = {}; this.events = [ 'mousemove', 'mouseout', 'click', 'touchstart', 'touchmove' ]; this.font = { family: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif", size: 12, style: 'normal', lineHeight: 1.2, weight: null }; this.hover = {}; this.hoverBackgroundColor = (ctx, options)=>getHoverColor(options.backgroundColor); this.hoverBorderColor = (ctx, options)=>getHoverColor(options.borderColor); this.hoverColor = (ctx, options)=>getHoverColor(options.color); this.indexAxis = 'x'; this.interaction = { mode: 'nearest', intersect: true, includeInvisible: false }; this.maintainAspectRatio = true; this.onHover = null; this.onClick = null; this.parsing = true; this.plugins = {}; this.responsive = true; this.scale = undefined; this.scales = {}; this.showLine = true; this.drawActiveElementsOnTop = true; this.describe(_descriptors); this.apply(_appliers); } set(scope, values) { return set(this, scope, values); } get(scope) { return getScope$1(this, scope); } describe(scope, values) { return set(descriptors, scope, values); } override(scope, values) { return set(overrides, scope, values); } route(scope, name, targetScope, targetName) { const scopeObject = getScope$1(this, scope); const targetScopeObject = getScope$1(this, targetScope); const privateName = '_' + name; Object.defineProperties(scopeObject, { [privateName]: { value: scopeObject[name], writable: true }, [name]: { enumerable: true, get () { const local = this[privateName]; const target = targetScopeObject[targetName]; if (isObject(local)) { return Object.assign({}, target, local); } return valueOrDefault(local, target); }, set (value) { this[privateName] = value; } } }); } apply(appliers) { appliers.forEach((apply)=>apply(this)); } } var defaults = /* #__PURE__ */ new Defaults({ _scriptable: (name)=>!name.startsWith('on'), _indexable: (name)=>name !== 'events', hover: { _fallback: 'interaction' }, interaction: { _scriptable: false, _indexable: false } }, [ applyAnimationsDefaults, applyLayoutsDefaults, applyScaleDefaults ]); /** * Converts the given font object into a CSS font string. * @param font - A font object. * @return The CSS font string. See https://developer.mozilla.org/en-US/docs/Web/CSS/font * @private */ function toFontString(font) { if (!font || isNullOrUndef(font.size) || isNullOrUndef(font.family)) { return null; } return (font.style ? font.style + ' ' : '') + (font.weight ? font.weight + ' ' : '') + font.size + 'px ' + font.family; } /** * @private */ function _measureText(ctx, data, gc, longest, string) { let textWidth = data[string]; if (!textWidth) { textWidth = data[string] = ctx.measureText(string).width; gc.push(string); } if (textWidth > longest) { longest = textWidth; } return longest; } /** * @private */ // eslint-disable-next-line complexity function _longestText(ctx, font, arrayOfThings, cache) { cache = cache || {}; let data = cache.data = cache.data || {}; let gc = cache.garbageCollect = cache.garbageCollect || []; if (cache.font !== font) { data = cache.data = {}; gc = cache.garbageCollect = []; cache.font = font; } ctx.save(); ctx.font = font; let longest = 0; const ilen = arrayOfThings.length; let i, j, jlen, thing, nestedThing; for(i = 0; i < ilen; i++){ thing = arrayOfThings[i]; // Undefined strings and arrays should not be measured if (thing !== undefined && thing !== null && !isArray(thing)) { longest = _measureText(ctx, data, gc, longest, thing); } else if (isArray(thing)) { // if it is an array lets measure each element // to do maybe simplify this function a bit so we can do this more recursively? for(j = 0, jlen = thing.length; j < jlen; j++){ nestedThing = thing[j]; // Undefined strings and arrays should not be measured if (nestedThing !== undefined && nestedThing !== null && !isArray(nestedThing)) { longest = _measureText(ctx, data, gc, longest, nestedThing); } } } } ctx.restore(); const gcLen = gc.length / 2; if (gcLen > arrayOfThings.length) { for(i = 0; i < gcLen; i++){ delete data[gc[i]]; } gc.splice(0, gcLen); } return longest; } /** * Returns the aligned pixel value to avoid anti-aliasing blur * @param chart - The chart instance. * @param pixel - A pixel value. * @param width - The width of the element. * @returns The aligned pixel value. * @private */ function _alignPixel(chart, pixel, width) { const devicePixelRatio = chart.currentDevicePixelRatio; const halfWidth = width !== 0 ? Math.max(width / 2, 0.5) : 0; return Math.round((pixel - halfWidth) * devicePixelRatio) / devicePixelRatio + halfWidth; } /** * Clears the entire canvas. */ function clearCanvas(canvas, ctx) { ctx = ctx || canvas.getContext('2d'); ctx.save(); // canvas.width and canvas.height do not consider the canvas transform, // while clearRect does ctx.resetTransform(); ctx.clearRect(0, 0, canvas.width, canvas.height); ctx.restore(); } function drawPoint(ctx, options, x, y) { // eslint-disable-next-line @typescript-eslint/no-use-before-define drawPointLegend(ctx, options, x, y, null); } // eslint-disable-next-line complexity function drawPointLegend(ctx, options, x, y, w) { let type, xOffset, yOffset, size, cornerRadius, width, xOffsetW, yOffsetW; const style = options.pointStyle; const rotation = options.rotation; const radius = options.radius; let rad = (rotation || 0) * RAD_PER_DEG; if (style && typeof style === 'object') { type = style.toString(); if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') { ctx.save(); ctx.translate(x, y); ctx.rotate(rad); ctx.drawImage(style, -style.width / 2, -style.height / 2, style.width, style.height); ctx.restore(); return; } } if (isNaN(radius) || radius <= 0) { return; } ctx.beginPath(); switch(style){ // Default includes circle default: if (w) { ctx.ellipse(x, y, w / 2, radius, 0, 0, TAU); } else { ctx.arc(x, y, radius, 0, TAU); } ctx.closePath(); break; case 'triangle': width = w ? w / 2 : radius; ctx.moveTo(x + Math.sin(rad) * width, y - Math.cos(rad) * radius); rad += TWO_THIRDS_PI; ctx.lineTo(x + Math.sin(rad) * width, y - Math.cos(rad) * radius); rad += TWO_THIRDS_PI; ctx.lineTo(x + Math.sin(rad) * width, y - Math.cos(rad) * radius); ctx.closePath(); break; case 'rectRounded': // NOTE: the rounded rect implementation changed to use `arc` instead of // `quadraticCurveTo` since it generates better results when rect is // almost a circle. 0.516 (instead of 0.5) produces results with visually // closer proportion to the previous impl and it is inscribed in the // circle with `radius`. For more details, see the following PRs: // https://github.com/chartjs/Chart.js/issues/5597 // https://github.com/chartjs/Chart.js/issues/5858 cornerRadius = radius * 0.516; size = radius - cornerRadius; xOffset = Math.cos(rad + QUARTER_PI) * size; xOffsetW = Math.cos(rad + QUARTER_PI) * (w ? w / 2 - cornerRadius : size); yOffset = Math.sin(rad + QUARTER_PI) * size; yOffsetW = Math.sin(rad + QUARTER_PI) * (w ? w / 2 - cornerRadius : size); ctx.arc(x - xOffsetW, y - yOffset, cornerRadius, rad - PI, rad - HALF_PI); ctx.arc(x + yOffsetW, y - xOffset, cornerRadius, rad - HALF_PI, rad); ctx.arc(x + xOffsetW, y + yOffset, cornerRadius, rad, rad + HALF_PI); ctx.arc(x - yOffsetW, y + xOffset, cornerRadius, rad + HALF_PI, rad + PI); ctx.closePath(); break; case 'rect': if (!rotation) { size = Math.SQRT1_2 * radius; width = w ? w / 2 : size; ctx.rect(x - width, y - size, 2 * width, 2 * size); break; } rad += QUARTER_PI; /* falls through */ case 'rectRot': xOffsetW = Math.cos(rad) * (w ? w / 2 : radius); xOffset = Math.cos(rad) * radius; yOffset = Math.sin(rad) * radius; yOffsetW = Math.sin(rad) * (w ? w / 2 : radius); ctx.moveTo(x - xOffsetW, y - yOffset); ctx.lineTo(x + yOffsetW, y - xOffset); ctx.lineTo(x + xOffsetW, y + yOffset); ctx.lineTo(x - yOffsetW, y + xOffset); ctx.closePath(); break; case 'crossRot': rad += QUARTER_PI; /* falls through */ case 'cross': xOffsetW = Math.cos(rad) * (w ? w / 2 : radius); xOffset = Math.cos(rad) * radius; yOffset = Math.sin(rad) * radius; yOffsetW = Math.sin(rad) * (w ? w / 2 : radius); ctx.moveTo(x - xOffsetW, y - yOffset); ctx.lineTo(x + xOffsetW, y + yOffset); ctx.moveTo(x + yOffsetW, y - xOffset); ctx.lineTo(x - yOffsetW, y + xOffset); break; case 'star': xOffsetW = Math.cos(rad) * (w ? w / 2 : radius); xOffset = Math.cos(rad) * radius; yOffset = Math.sin(rad) * radius; yOffsetW = Math.sin(rad) * (w ? w / 2 : radius); ctx.moveTo(x - xOffsetW, y - yOffset); ctx.lineTo(x + xOffsetW, y + yOffset); ctx.moveTo(x + yOffsetW, y - xOffset); ctx.lineTo(x - yOffsetW, y + xOffset); rad += QUARTER_PI; xOffsetW = Math.cos(rad) * (w ? w / 2 : radius); xOffset = Math.cos(rad) * radius; yOffset = Math.sin(rad) * radius; yOffsetW = Math.sin(rad) * (w ? w / 2 : radius); ctx.moveTo(x - xOffsetW, y - yOffset); ctx.lineTo(x + xOffsetW, y + yOffset); ctx.moveTo(x + yOffsetW, y - xOffset); ctx.lineTo(x - yOffsetW, y + xOffset); break; case 'line': xOffset = w ? w / 2 : Math.cos(rad) * radius; yOffset = Math.sin(rad) * radius; ctx.moveTo(x - xOffset, y - yOffset); ctx.lineTo(x + xOffset, y + yOffset); break; case 'dash': ctx.moveTo(x, y); ctx.lineTo(x + Math.cos(rad) * (w ? w / 2 : radius), y + Math.sin(rad) * radius); break; case false: ctx.closePath(); break; } ctx.fill(); if (options.borderWidth > 0) { ctx.stroke(); } } /** * Returns true if the point is inside the rectangle * @param point - The point to test * @param area - The rectangle * @param margin - allowed margin * @private */ function _isPointInArea(point, area, margin) { margin = margin || 0.5; // margin - default is to match rounded decimals return !area || point && point.x > area.left - margin && point.x < area.right + margin && point.y > area.top - margin && point.y < area.bottom + margin; } function clipArea(ctx, area) { ctx.save(); ctx.beginPath(); ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top); ctx.clip(); } function unclipArea(ctx) { ctx.restore(); } /** * @private */ function _steppedLineTo(ctx, previous, target, flip, mode) { if (!previous) { return ctx.lineTo(target.x, target.y); } if (mode === 'middle') { const midpoint = (previous.x + target.x) / 2.0; ctx.lineTo(midpoint, previous.y); ctx.lineTo(midpoint, target.y); } else if (mode === 'after' !== !!flip) { ctx.lineTo(previous.x, target.y); } else { ctx.lineTo(target.x, previous.y); } ctx.lineTo(target.x, target.y); } /** * @private */ function _bezierCurveTo(ctx, previous, target, flip) { if (!previous) { return ctx.lineTo(target.x, target.y); } ctx.bezierCurveTo(flip ? previous.cp1x : previous.cp2x, flip ? previous.cp1y : previous.cp2y, flip ? target.cp2x : target.cp1x, flip ? target.cp2y : target.cp1y, target.x, target.y); } function setRenderOpts(ctx, opts) { if (opts.translation) { ctx.translate(opts.translation[0], opts.translation[1]); } if (!isNullOrUndef(opts.rotation)) { ctx.rotate(opts.rotation); } if (opts.color) { ctx.fillStyle = opts.color; } if (opts.textAlign) { ctx.textAlign = opts.textAlign; } if (opts.textBaseline) { ctx.textBaseline = opts.textBaseline; } } function decorateText(ctx, x, y, line, opts) { if (opts.strikethrough || opts.underline) { /** * Now that IE11 support has been dropped, we can use more * of the TextMetrics object. The actual bounding boxes * are unflagged in Chrome, Firefox, Edge, and Safari so they * can be safely used. * See https://developer.mozilla.org/en-US/docs/Web/API/TextMetrics#Browser_compatibility */ const metrics = ctx.measureText(line); const left = x - metrics.actualBoundingBoxLeft; const right = x + metrics.actualBoundingBoxRight; const top = y - metrics.actualBoundingBoxAscent; const bottom = y + metrics.actualBoundingBoxDescent; const yDecoration = opts.strikethrough ? (top + bottom) / 2 : bottom; ctx.strokeStyle = ctx.fillStyle; ctx.beginPath(); ctx.lineWidth = opts.decorationWidth || 2; ctx.moveTo(left, yDecoration); ctx.lineTo(right, yDecoration); ctx.stroke(); } } function drawBackdrop(ctx, opts) { const oldColor = ctx.fillStyle; ctx.fillStyle = opts.color; ctx.fillRect(opts.left, opts.top, opts.width, opts.height); ctx.fillStyle = oldColor; } /** * Render text onto the canvas */ function renderText(ctx, text, x, y, font, opts = {}) { const lines = isArray(text) ? text : [ text ]; const stroke = opts.strokeWidth > 0 && opts.strokeColor !== ''; let i, line; ctx.save(); ctx.font = font.string; setRenderOpts(ctx, opts); for(i = 0; i < lines.length; ++i){ line = lines[i]; if (opts.backdrop) { drawBackdrop(ctx, opts.backdrop); } if (stroke) { if (opts.strokeColor) { ctx.strokeStyle = opts.strokeColor; } if (!isNullOrUndef(opts.strokeWidth)) { ctx.lineWidth = opts.strokeWidth; } ctx.strokeText(line, x, y, opts.maxWidth); } ctx.fillText(line, x, y, opts.maxWidth); decorateText(ctx, x, y, line, opts); y += Number(font.lineHeight); } ctx.restore(); } /** * Add a path of a rectangle with rounded corners to the current sub-path * @param ctx - Context * @param rect - Bounding rect */ function addRoundedRectPath(ctx, rect) { const { x , y , w , h , radius } = rect; // top left arc ctx.arc(x + radius.topLeft, y + radius.topLeft, radius.topLeft, -HALF_PI, PI, true); // line from top left to bottom left ctx.lineTo(x, y + h - radius.bottomLeft); // bottom left arc ctx.arc(x + radius.bottomLeft, y + h - radius.bottomLeft, radius.bottomLeft, PI, HALF_PI, true); // line from bottom left to bottom right ctx.lineTo(x + w - radius.bottomRight, y + h); // bottom right arc ctx.arc(x + w - radius.bottomRight, y + h - radius.bottomRight, radius.bottomRight, HALF_PI, 0, true); // line from bottom right to top right ctx.lineTo(x + w, y + radius.topRight); // top right arc ctx.arc(x + w - radius.topRight, y + radius.topRight, radius.topRight, 0, -HALF_PI, true); // line from top right to top left ctx.lineTo(x + radius.topLeft, y); } const LINE_HEIGHT = /^(normal|(\d+(?:\.\d+)?)(px|em|%)?)$/; const FONT_STYLE = /^(normal|italic|initial|inherit|unset|(oblique( -?[0-9]?[0-9]deg)?))$/; /** * @alias Chart.helpers.options * @namespace */ /** * Converts the given line height `value` in pixels for a specific font `size`. * @param value - The lineHeight to parse (eg. 1.6, '14px', '75%', '1.6em'). * @param size - The font size (in pixels) used to resolve relative `value`. * @returns The effective line height in pixels (size * 1.2 if value is invalid). * @see https://developer.mozilla.org/en-US/docs/Web/CSS/line-height * @since 2.7.0 */ function toLineHeight(value, size) { const matches = ('' + value).match(LINE_HEIGHT); if (!matches || matches[1] === 'normal') { return size * 1.2; } value = +matches[2]; switch(matches[3]){ case 'px': return value; case '%': value /= 100; break; } return size * value; } const numberOrZero = (v)=>+v || 0; function _readValueToProps(value, props) { const ret = {}; const objProps = isObject(props); const keys = objProps ? Object.keys(props) : props; const read = isObject(value) ? objProps ? (prop)=>valueOrDefault(value[prop], value[props[prop]]) : (prop)=>value[prop] : ()=>value; for (const prop of keys){ ret[prop] = numberOrZero(read(prop)); } return ret; } /** * Converts the given value into a TRBL object. * @param value - If a number, set the value to all TRBL component, * else, if an object, use defined properties and sets undefined ones to 0. * x / y are shorthands for same value for left/right and top/bottom. * @returns The padding values (top, right, bottom, left) * @since 3.0.0 */ function toTRBL(value) { return _readValueToProps(value, { top: 'y', right: 'x', bottom: 'y', left: 'x' }); } /** * Converts the given value into a TRBL corners object (similar with css border-radius). * @param value - If a number, set the value to all TRBL corner components, * else, if an object, use defined properties and sets undefined ones to 0. * @returns The TRBL corner values (topLeft, topRight, bottomLeft, bottomRight) * @since 3.0.0 */ function toTRBLCorners(value) { return _readValueToProps(value, [ 'topLeft', 'topRight', 'bottomLeft', 'bottomRight' ]); } /** * Converts the given value into a padding object with pre-computed width/height. * @param value - If a number, set the value to all TRBL component, * else, if an object, use defined properties and sets undefined ones to 0. * x / y are shorthands for same value for left/right and top/bottom. * @returns The padding values (top, right, bottom, left, width, height) * @since 2.7.0 */ function toPadding(value) { const obj = toTRBL(value); obj.width = obj.left + obj.right; obj.height = obj.top + obj.bottom; return obj; } /** * Parses font options and returns the font object. * @param options - A object that contains font options to be parsed. * @param fallback - A object that contains fallback font options. * @return The font object. * @private */ function toFont(options, fallback) { options = options || {}; fallback = fallback || defaults.font; let size = valueOrDefault(options.size, fallback.size); if (typeof size === 'string') { size = parseInt(size, 10); } let style = valueOrDefault(options.style, fallback.style); if (style && !('' + style).match(FONT_STYLE)) { console.warn('Invalid font style specified: "' + style + '"'); style = undefined; } const font = { family: valueOrDefault(options.family, fallback.family), lineHeight: toLineHeight(valueOrDefault(options.lineHeight, fallback.lineHeight), size), size, style, weight: valueOrDefault(options.weight, fallback.weight), string: '' }; font.string = toFontString(font); return font; } /** * Evaluates the given `inputs` sequentially and returns the first defined value. * @param inputs - An array of values, falling back to the last value. * @param context - If defined and the current value is a function, the value * is called with `context` as first argument and the result becomes the new input. * @param index - If defined and the current value is an array, the value * at `index` become the new input. * @param info - object to return information about resolution in * @param info.cacheable - Will be set to `false` if option is not cacheable. * @since 2.7.0 */ function resolve(inputs, context, index, info) { let cacheable = true; let i, ilen, value; for(i = 0, ilen = inputs.length; i < ilen; ++i){ value = inputs[i]; if (value === undefined) { continue; } if (context !== undefined && typeof value === 'function') { value = value(context); cacheable = false; } if (index !== undefined && isArray(value)) { value = value[index % value.length]; cacheable = false; } if (value !== undefined) { if (info && !cacheable) { info.cacheable = false; } return value; } } } /** * @param minmax * @param grace * @param beginAtZero * @private */ function _addGrace(minmax, grace, beginAtZero) { const { min , max } = minmax; const change = toDimension(grace, (max - min) / 2); const keepZero = (value, add)=>beginAtZero && value === 0 ? 0 : value + add; return { min: keepZero(min, -Math.abs(change)), max: keepZero(max, change) }; } function createContext(parentContext, context) { return Object.assign(Object.create(parentContext), context); } /** * Creates a Proxy for resolving raw values for options. * @param scopes - The option scopes to look for values, in resolution order * @param prefixes - The prefixes for values, in resolution order. * @param rootScopes - The root option scopes * @param fallback - Parent scopes fallback * @param getTarget - callback for getting the target for changed values * @returns Proxy * @private */ function _createResolver(scopes, prefixes = [ '' ], rootScopes, fallback, getTarget = ()=>scopes[0]) { const finalRootScopes = rootScopes || scopes; if (typeof fallback === 'undefined') { fallback = _resolve('_fallback', scopes); } const cache = { [Symbol.toStringTag]: 'Object', _cacheable: true, _scopes: scopes, _rootScopes: finalRootScopes, _fallback: fallback, _getTarget: getTarget, override: (scope)=>_createResolver([ scope, ...scopes ], prefixes, finalRootScopes, fallback) }; return new Proxy(cache, { /** * A trap for the delete operator. */ deleteProperty (target, prop) { delete target[prop]; // remove from cache delete target._keys; // remove cached keys delete scopes[0][prop]; // remove from top level scope return true; }, /** * A trap for getting property values. */ get (target, prop) { return _cached(target, prop, ()=>_resolveWithPrefixes(prop, prefixes, scopes, target)); }, /** * A trap for Object.getOwnPropertyDescriptor. * Also used by Object.hasOwnProperty. */ getOwnPropertyDescriptor (target, prop) { return Reflect.getOwnPropertyDescriptor(target._scopes[0], prop); }, /** * A trap for Object.getPrototypeOf. */ getPrototypeOf () { return Reflect.getPrototypeOf(scopes[0]); }, /** * A trap for the in operator. */ has (target, prop) { return getKeysFromAllScopes(target).includes(prop); }, /** * A trap for Object.getOwnPropertyNames and Object.getOwnPropertySymbols. */ ownKeys (target) { return getKeysFromAllScopes(target); }, /** * A trap for setting property values. */ set (target, prop, value) { const storage = target._storage || (target._storage = getTarget()); target[prop] = storage[prop] = value; // set to top level scope + cache delete target._keys; // remove cached keys return true; } }); } /** * Returns an Proxy for resolving option values with context. * @param proxy - The Proxy returned by `_createResolver` * @param context - Context object for scriptable/indexable options * @param subProxy - The proxy provided for scriptable options * @param descriptorDefaults - Defaults for descriptors * @private */ function _attachContext(proxy, context, subProxy, descriptorDefaults) { const cache = { _cacheable: false, _proxy: proxy, _context: context, _subProxy: subProxy, _stack: new Set(), _descriptors: _descriptors(proxy, descriptorDefaults), setContext: (ctx)=>_attachContext(proxy, ctx, subProxy, descriptorDefaults), override: (scope)=>_attachContext(proxy.override(scope), context, subProxy, descriptorDefaults) }; return new Proxy(cache, { /** * A trap for the delete operator. */ deleteProperty (target, prop) { delete target[prop]; // remove from cache delete proxy[prop]; // remove from proxy return true; }, /** * A trap for getting property values. */ get (target, prop, receiver) { return _cached(target, prop, ()=>_resolveWithContext(target, prop, receiver)); }, /** * A trap for Object.getOwnPropertyDescriptor. * Also used by Object.hasOwnProperty. */ getOwnPropertyDescriptor (target, prop) { return target._descriptors.allKeys ? Reflect.has(proxy, prop) ? { enumerable: true, configurable: true } : undefined : Reflect.getOwnPropertyDescriptor(proxy, prop); }, /** * A trap for Object.getPrototypeOf. */ getPrototypeOf () { return Reflect.getPrototypeOf(proxy); }, /** * A trap for the in operator. */ has (target, prop) { return Reflect.has(proxy, prop); }, /** * A trap for Object.getOwnPropertyNames and Object.getOwnPropertySymbols. */ ownKeys () { return Reflect.ownKeys(proxy); }, /** * A trap for setting property values. */ set (target, prop, value) { proxy[prop] = value; // set to proxy delete target[prop]; // remove from cache return true; } }); } /** * @private */ function _descriptors(proxy, defaults = { scriptable: true, indexable: true }) { const { _scriptable =defaults.scriptable , _indexable =defaults.indexable , _allKeys =defaults.allKeys } = proxy; return { allKeys: _allKeys, scriptable: _scriptable, indexable: _indexable, isScriptable: isFunction(_scriptable) ? _scriptable : ()=>_scriptable, isIndexable: isFunction(_indexable) ? _indexable : ()=>_indexable }; } const readKey = (prefix, name)=>prefix ? prefix + _capitalize(name) : name; const needsSubResolver = (prop, value)=>isObject(value) && prop !== 'adapters' && (Object.getPrototypeOf(value) === null || value.constructor === Object); function _cached(target, prop, resolve) { if (Object.prototype.hasOwnProperty.call(target, prop)) { return target[prop]; } const value = resolve(); // cache the resolved value target[prop] = value; return value; } function _resolveWithContext(target, prop, receiver) { const { _proxy , _context , _subProxy , _descriptors: descriptors } = target; let value = _proxy[prop]; // resolve from proxy // resolve with context if (isFunction(value) && descriptors.isScriptable(prop)) { value = _resolveScriptable(prop, value, target, receiver); } if (isArray(value) && value.length) { value = _resolveArray(prop, value, target, descriptors.isIndexable); } if (needsSubResolver(prop, value)) { // if the resolved value is an object, create a sub resolver for it value = _attachContext(value, _context, _subProxy && _subProxy[prop], descriptors); } return value; } function _resolveScriptable(prop, getValue, target, receiver) { const { _proxy , _context , _subProxy , _stack } = target; if (_stack.has(prop)) { throw new Error('Recursion detected: ' + Array.from(_stack).join('->') + '->' + prop); } _stack.add(prop); let value = getValue(_context, _subProxy || receiver); _stack.delete(prop); if (needsSubResolver(prop, value)) { // When scriptable option returns an object, create a resolver on that. value = createSubResolver(_proxy._scopes, _proxy, prop, value); } return value; } function _resolveArray(prop, value, target, isIndexable) { const { _proxy , _context , _subProxy , _descriptors: descriptors } = target; if (typeof _context.index !== 'undefined' && isIndexable(prop)) { return value[_context.index % value.length]; } else if (isObject(value[0])) { // Array of objects, return array or resolvers const arr = value; const scopes = _proxy._scopes.filter((s)=>s !== arr); value = []; for (const item of arr){ const resolver = createSubResolver(scopes, _proxy, prop, item); value.push(_attachContext(resolver, _context, _subProxy && _subProxy[prop], descriptors)); } } return value; } function resolveFallback(fallback, prop, value) { return isFunction(fallback) ? fallback(prop, value) : fallback; } const getScope = (key, parent)=>key === true ? parent : typeof key === 'string' ? resolveObjectKey(parent, key) : undefined; function addScopes(set, parentScopes, key, parentFallback, value) { for (const parent of parentScopes){ const scope = getScope(key, parent); if (scope) { set.add(scope); const fallback = resolveFallback(scope._fallback, key, value); if (typeof fallback !== 'undefined' && fallback !== key && fallback !== parentFallback) { // When we reach the descriptor that defines a new _fallback, return that. // The fallback will resume to that new scope. return fallback; } } else if (scope === false && typeof parentFallback !== 'undefined' && key !== parentFallback) { // Fallback to `false` results to `false`, when falling back to different key. // For example `interaction` from `hover` or `plugins.tooltip` and `animation` from `animations` return null; } } return false; } function createSubResolver(parentScopes, resolver, prop, value) { const rootScopes = resolver._rootScopes; const fallback = resolveFallback(resolver._fallback, prop, value); const allScopes = [ ...parentScopes, ...rootScopes ]; const set = new Set(); set.add(value); let key = addScopesFromKey(set, allScopes, prop, fallback || prop, value); if (key === null) { return false; } if (typeof fallback !== 'undefined' && fallback !== prop) { key = addScopesFromKey(set, allScopes, fallback, key, value); if (key === null) { return false; } } return _createResolver(Array.from(set), [ '' ], rootScopes, fallback, ()=>subGetTarget(resolver, prop, value)); } function addScopesFromKey(set, allScopes, key, fallback, item) { while(key){ key = addScopes(set, allScopes, key, fallback, item); } return key; } function subGetTarget(resolver, prop, value) { const parent = resolver._getTarget(); if (!(prop in parent)) { parent[prop] = {}; } const target = parent[prop]; if (isArray(target) && isObject(value)) { // For array of objects, the object is used to store updated values return value; } return target || {}; } function _resolveWithPrefixes(prop, prefixes, scopes, proxy) { let value; for (const prefix of prefixes){ value = _resolve(readKey(prefix, prop), scopes); if (typeof value !== 'undefined') { return needsSubResolver(prop, value) ? createSubResolver(scopes, proxy, prop, value) : value; } } } function _resolve(key, scopes) { for (const scope of scopes){ if (!scope) { continue; } const value = scope[key]; if (typeof value !== 'undefined') { return value; } } } function getKeysFromAllScopes(target) { let keys = target._keys; if (!keys) { keys = target._keys = resolveKeysFromAllScopes(target._scopes); } return keys; } function resolveKeysFromAllScopes(scopes) { const set = new Set(); for (const scope of scopes){ for (const key of Object.keys(scope).filter((k)=>!k.startsWith('_'))){ set.add(key); } } return Array.from(set); } function _parseObjectDataRadialScale(meta, data, start, count) { const { iScale } = meta; const { key ='r' } = this._parsing; const parsed = new Array(count); let i, ilen, index, item; for(i = 0, ilen = count; i < ilen; ++i){ index = i + start; item = data[index]; parsed[i] = { r: iScale.parse(resolveObjectKey(item, key), index) }; } return parsed; } const EPSILON = Number.EPSILON || 1e-14; const getPoint = (points, i)=>i < points.length && !points[i].skip && points[i]; const getValueAxis = (indexAxis)=>indexAxis === 'x' ? 'y' : 'x'; function splineCurve(firstPoint, middlePoint, afterPoint, t) { // Props to Rob Spencer at scaled innovation for his post on splining between points // http://scaledinnovation.com/analytics/splines/aboutSplines.html // This function must also respect "skipped" points const previous = firstPoint.skip ? middlePoint : firstPoint; const current = middlePoint; const next = afterPoint.skip ? middlePoint : afterPoint; const d01 = distanceBetweenPoints(current, previous); const d12 = distanceBetweenPoints(next, current); let s01 = d01 / (d01 + d12); let s12 = d12 / (d01 + d12); // If all points are the same, s01 & s02 will be inf s01 = isNaN(s01) ? 0 : s01; s12 = isNaN(s12) ? 0 : s12; const fa = t * s01; // scaling factor for triangle Ta const fb = t * s12; return { previous: { x: current.x - fa * (next.x - previous.x), y: current.y - fa * (next.y - previous.y) }, next: { x: current.x + fb * (next.x - previous.x), y: current.y + fb * (next.y - previous.y) } }; } /** * Adjust tangents to ensure monotonic properties */ function monotoneAdjust(points, deltaK, mK) { const pointsLen = points.length; let alphaK, betaK, tauK, squaredMagnitude, pointCurrent; let pointAfter = getPoint(points, 0); for(let i = 0; i < pointsLen - 1; ++i){ pointCurrent = pointAfter; pointAfter = getPoint(points, i + 1); if (!pointCurrent || !pointAfter) { continue; } if (almostEquals(deltaK[i], 0, EPSILON)) { mK[i] = mK[i + 1] = 0; continue; } alphaK = mK[i] / deltaK[i]; betaK = mK[i + 1] / deltaK[i]; squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2); if (squaredMagnitude <= 9) { continue; } tauK = 3 / Math.sqrt(squaredMagnitude); mK[i] = alphaK * tauK * deltaK[i]; mK[i + 1] = betaK * tauK * deltaK[i]; } } function monotoneCompute(points, mK, indexAxis = 'x') { const valueAxis = getValueAxis(indexAxis); const pointsLen = points.length; let delta, pointBefore, pointCurrent; let pointAfter = getPoint(points, 0); for(let i = 0; i < pointsLen; ++i){ pointBefore = pointCurrent; pointCurrent = pointAfter; pointAfter = getPoint(points, i + 1); if (!pointCurrent) { continue; } const iPixel = pointCurrent[indexAxis]; const vPixel = pointCurrent[valueAxis]; if (pointBefore) { delta = (iPixel - pointBefore[indexAxis]) / 3; pointCurrent[`cp1${indexAxis}`] = iPixel - delta; pointCurrent[`cp1${valueAxis}`] = vPixel - delta * mK[i]; } if (pointAfter) { delta = (pointAfter[indexAxis] - iPixel) / 3; pointCurrent[`cp2${indexAxis}`] = iPixel + delta; pointCurrent[`cp2${valueAxis}`] = vPixel + delta * mK[i]; } } } /** * This function calculates Bézier control points in a similar way than |splineCurve|, * but preserves monotonicity of the provided data and ensures no local extremums are added * between the dataset discrete points due to the interpolation. * See : https://en.wikipedia.org/wiki/Monotone_cubic_interpolation */ function splineCurveMonotone(points, indexAxis = 'x') { const valueAxis = getValueAxis(indexAxis); const pointsLen = points.length; const deltaK = Array(pointsLen).fill(0); const mK = Array(pointsLen); // Calculate slopes (deltaK) and initialize tangents (mK) let i, pointBefore, pointCurrent; let pointAfter = getPoint(points, 0); for(i = 0; i < pointsLen; ++i){ pointBefore = pointCurrent; pointCurrent = pointAfter; pointAfter = getPoint(points, i + 1); if (!pointCurrent) { continue; } if (pointAfter) { const slopeDelta = pointAfter[indexAxis] - pointCurrent[indexAxis]; // In the case of two points that appear at the same x pixel, slopeDeltaX is 0 deltaK[i] = slopeDelta !== 0 ? (pointAfter[valueAxis] - pointCurrent[valueAxis]) / slopeDelta : 0; } mK[i] = !pointBefore ? deltaK[i] : !pointAfter ? deltaK[i - 1] : sign(deltaK[i - 1]) !== sign(deltaK[i]) ? 0 : (deltaK[i - 1] + deltaK[i]) / 2; } monotoneAdjust(points, deltaK, mK); monotoneCompute(points, mK, indexAxis); } function capControlPoint(pt, min, max) { return Math.max(Math.min(pt, max), min); } function capBezierPoints(points, area) { let i, ilen, point, inArea, inAreaPrev; let inAreaNext = _isPointInArea(points[0], area); for(i = 0, ilen = points.length; i < ilen; ++i){ inAreaPrev = inArea; inArea = inAreaNext; inAreaNext = i < ilen - 1 && _isPointInArea(points[i + 1], area); if (!inArea) { continue; } point = points[i]; if (inAreaPrev) { point.cp1x = capControlPoint(point.cp1x, area.left, area.right); point.cp1y = capControlPoint(point.cp1y, area.top, area.bottom); } if (inAreaNext) { point.cp2x = capControlPoint(point.cp2x, area.left, area.right); point.cp2y = capControlPoint(point.cp2y, area.top, area.bottom); } } } /** * @private */ function _updateBezierControlPoints(points, options, area, loop, indexAxis) { let i, ilen, point, controlPoints; // Only consider points that are drawn in case the spanGaps option is used if (options.spanGaps) { points = points.filter((pt)=>!pt.skip); } if (options.cubicInterpolationMode === 'monotone') { splineCurveMonotone(points, indexAxis); } else { let prev = loop ? points[points.length - 1] : points[0]; for(i = 0, ilen = points.length; i < ilen; ++i){ point = points[i]; controlPoints = splineCurve(prev, point, points[Math.min(i + 1, ilen - (loop ? 0 : 1)) % ilen], options.tension); point.cp1x = controlPoints.previous.x; point.cp1y = controlPoints.previous.y; point.cp2x = controlPoints.next.x; point.cp2y = controlPoints.next.y; prev = point; } } if (options.capBezierPoints) { capBezierPoints(points, area); } } /** * Note: typedefs are auto-exported, so use a made-up `dom` namespace where * necessary to avoid duplicates with `export * from './helpers`; see * https://github.com/microsoft/TypeScript/issues/46011 * @typedef { import('../core/core.controller.js').default } dom.Chart * @typedef { import('../../types').ChartEvent } ChartEvent */ /** * @private */ function _isDomSupported() { return typeof window !== 'undefined' && typeof document !== 'undefined'; } /** * @private */ function _getParentNode(domNode) { let parent = domNode.parentNode; if (parent && parent.toString() === '[object ShadowRoot]') { parent = parent.host; } return parent; } /** * convert max-width/max-height values that may be percentages into a number * @private */ function parseMaxStyle(styleValue, node, parentProperty) { let valueInPixels; if (typeof styleValue === 'string') { valueInPixels = parseInt(styleValue, 10); if (styleValue.indexOf('%') !== -1) { // percentage * size in dimension valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty]; } } else { valueInPixels = styleValue; } return valueInPixels; } const getComputedStyle = (element)=>element.ownerDocument.defaultView.getComputedStyle(element, null); function getStyle(el, property) { return getComputedStyle(el).getPropertyValue(property); } const positions = [ 'top', 'right', 'bottom', 'left' ]; function getPositionedStyle(styles, style, suffix) { const result = {}; suffix = suffix ? '-' + suffix : ''; for(let i = 0; i < 4; i++){ const pos = positions[i]; result[pos] = parseFloat(styles[style + '-' + pos + suffix]) || 0; } result.width = result.left + result.right; result.height = result.top + result.bottom; return result; } const useOffsetPos = (x, y, target)=>(x > 0 || y > 0) && (!target || !target.shadowRoot); /** * @param e * @param canvas * @returns Canvas position */ function getCanvasPosition(e, canvas) { const touches = e.touches; const source = touches && touches.length ? touches[0] : e; const { offsetX , offsetY } = source; let box = false; let x, y; if (useOffsetPos(offsetX, offsetY, e.target)) { x = offsetX; y = offsetY; } else { const rect = canvas.getBoundingClientRect(); x = source.clientX - rect.left; y = source.clientY - rect.top; box = true; } return { x, y, box }; } /** * Gets an event's x, y coordinates, relative to the chart area * @param event * @param chart * @returns x and y coordinates of the event */ function getRelativePosition(event, chart) { if ('native' in event) { return event; } const { canvas , currentDevicePixelRatio } = chart; const style = getComputedStyle(canvas); const borderBox = style.boxSizing === 'border-box'; const paddings = getPositionedStyle(style, 'padding'); const borders = getPositionedStyle(style, 'border', 'width'); const { x , y , box } = getCanvasPosition(event, canvas); const xOffset = paddings.left + (box && borders.left); const yOffset = paddings.top + (box && borders.top); let { width , height } = chart; if (borderBox) { width -= paddings.width + borders.width; height -= paddings.height + borders.height; } return { x: Math.round((x - xOffset) / width * canvas.width / currentDevicePixelRatio), y: Math.round((y - yOffset) / height * canvas.height / currentDevicePixelRatio) }; } function getContainerSize(canvas, width, height) { let maxWidth, maxHeight; if (width === undefined || height === undefined) { const container = _getParentNode(canvas); if (!container) { width = canvas.clientWidth; height = canvas.clientHeight; } else { const rect = container.getBoundingClientRect(); // this is the border box of the container const containerStyle = getComputedStyle(container); const containerBorder = getPositionedStyle(containerStyle, 'border', 'width'); const containerPadding = getPositionedStyle(containerStyle, 'padding'); width = rect.width - containerPadding.width - containerBorder.width; height = rect.height - containerPadding.height - containerBorder.height; maxWidth = parseMaxStyle(containerStyle.maxWidth, container, 'clientWidth'); maxHeight = parseMaxStyle(containerStyle.maxHeight, container, 'clientHeight'); } } return { width, height, maxWidth: maxWidth || INFINITY, maxHeight: maxHeight || INFINITY }; } const round1 = (v)=>Math.round(v * 10) / 10; // eslint-disable-next-line complexity function getMaximumSize(canvas, bbWidth, bbHeight, aspectRatio) { const style = getComputedStyle(canvas); const margins = getPositionedStyle(style, 'margin'); const maxWidth = parseMaxStyle(style.maxWidth, canvas, 'clientWidth') || INFINITY; const maxHeight = parseMaxStyle(style.maxHeight, canvas, 'clientHeight') || INFINITY; const containerSize = getContainerSize(canvas, bbWidth, bbHeight); let { width , height } = containerSize; if (style.boxSizing === 'content-box') { const borders = getPositionedStyle(style, 'border', 'width'); const paddings = getPositionedStyle(style, 'padding'); width -= paddings.width + borders.width; height -= paddings.height + borders.height; } width = Math.max(0, width - margins.width); height = Math.max(0, aspectRatio ? width / aspectRatio : height - margins.height); width = round1(Math.min(width, maxWidth, containerSize.maxWidth)); height = round1(Math.min(height, maxHeight, containerSize.maxHeight)); if (width && !height) { // https://github.com/chartjs/Chart.js/issues/4659 // If the canvas has width, but no height, default to aspectRatio of 2 (canvas default) height = round1(width / 2); } const maintainHeight = bbWidth !== undefined || bbHeight !== undefined; if (maintainHeight && aspectRatio && containerSize.height && height > containerSize.height) { height = containerSize.height; width = round1(Math.floor(height * aspectRatio)); } return { width, height }; } /** * @param chart * @param forceRatio * @param forceStyle * @returns True if the canvas context size or transformation has changed. */ function retinaScale(chart, forceRatio, forceStyle) { const pixelRatio = forceRatio || 1; const deviceHeight = Math.floor(chart.height * pixelRatio); const deviceWidth = Math.floor(chart.width * pixelRatio); chart.height = Math.floor(chart.height); chart.width = Math.floor(chart.width); const canvas = chart.canvas; // If no style has been set on the canvas, the render size is used as display size, // making the chart visually bigger, so let's enforce it to the "correct" values. // See https://github.com/chartjs/Chart.js/issues/3575 if (canvas.style && (forceStyle || !canvas.style.height && !canvas.style.width)) { canvas.style.height = `${chart.height}px`; canvas.style.width = `${chart.width}px`; } if (chart.currentDevicePixelRatio !== pixelRatio || canvas.height !== deviceHeight || canvas.width !== deviceWidth) { chart.currentDevicePixelRatio = pixelRatio; canvas.height = deviceHeight; canvas.width = deviceWidth; chart.ctx.setTransform(pixelRatio, 0, 0, pixelRatio, 0, 0); return true; } return false; } /** * Detects support for options object argument in addEventListener. * https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support * @private */ const supportsEventListenerOptions = function() { let passiveSupported = false; try { const options = { get passive () { passiveSupported = true; return false; } }; window.addEventListener('test', null, options); window.removeEventListener('test', null, options); } catch (e) { // continue regardless of error } return passiveSupported; }(); /** * The "used" size is the final value of a dimension property after all calculations have * been performed. This method uses the computed style of `element` but returns undefined * if the computed style is not expressed in pixels. That can happen in some cases where * `element` has a size relative to its parent and this last one is not yet displayed, * for example because of `display: none` on a parent node. * @see https://developer.mozilla.org/en-US/docs/Web/CSS/used_value * @returns Size in pixels or undefined if unknown. */ function readUsedSize(element, property) { const value = getStyle(element, property); const matches = value && value.match(/^(\d+)(\.\d+)?px$/); return matches ? +matches[1] : undefined; } /** * @private */ function _pointInLine(p1, p2, t, mode) { return { x: p1.x + t * (p2.x - p1.x), y: p1.y + t * (p2.y - p1.y) }; } /** * @private */ function _steppedInterpolation(p1, p2, t, mode) { return { x: p1.x + t * (p2.x - p1.x), y: mode === 'middle' ? t < 0.5 ? p1.y : p2.y : mode === 'after' ? t < 1 ? p1.y : p2.y : t > 0 ? p2.y : p1.y }; } /** * @private */ function _bezierInterpolation(p1, p2, t, mode) { const cp1 = { x: p1.cp2x, y: p1.cp2y }; const cp2 = { x: p2.cp1x, y: p2.cp1y }; const a = _pointInLine(p1, cp1, t); const b = _pointInLine(cp1, cp2, t); const c = _pointInLine(cp2, p2, t); const d = _pointInLine(a, b, t); const e = _pointInLine(b, c, t); return _pointInLine(d, e, t); } const getRightToLeftAdapter = function(rectX, width) { return { x (x) { return rectX + rectX + width - x; }, setWidth (w) { width = w; }, textAlign (align) { if (align === 'center') { return align; } return align === 'right' ? 'left' : 'right'; }, xPlus (x, value) { return x - value; }, leftForLtr (x, itemWidth) { return x - itemWidth; } }; }; const getLeftToRightAdapter = function() { return { x (x) { return x; }, setWidth (w) {}, textAlign (align) { return align; }, xPlus (x, value) { return x + value; }, leftForLtr (x, _itemWidth) { return x; } }; }; function getRtlAdapter(rtl, rectX, width) { return rtl ? getRightToLeftAdapter(rectX, width) : getLeftToRightAdapter(); } function overrideTextDirection(ctx, direction) { let style, original; if (direction === 'ltr' || direction === 'rtl') { style = ctx.canvas.style; original = [ style.getPropertyValue('direction'), style.getPropertyPriority('direction') ]; style.setProperty('direction', direction, 'important'); ctx.prevTextDirection = original; } } function restoreTextDirection(ctx, original) { if (original !== undefined) { delete ctx.prevTextDirection; ctx.canvas.style.setProperty('direction', original[0], original[1]); } } function propertyFn(property) { if (property === 'angle') { return { between: _angleBetween, compare: _angleDiff, normalize: _normalizeAngle }; } return { between: _isBetween, compare: (a, b)=>a - b, normalize: (x)=>x }; } function normalizeSegment({ start , end , count , loop , style }) { return { start: start % count, end: end % count, loop: loop && (end - start + 1) % count === 0, style }; } function getSegment(segment, points, bounds) { const { property , start: startBound , end: endBound } = bounds; const { between , normalize } = propertyFn(property); const count = points.length; let { start , end , loop } = segment; let i, ilen; if (loop) { start += count; end += count; for(i = 0, ilen = count; i < ilen; ++i){ if (!between(normalize(points[start % count][property]), startBound, endBound)) { break; } start--; end--; } start %= count; end %= count; } if (end < start) { end += count; } return { start, end, loop, style: segment.style }; } function _boundSegment(segment, points, bounds) { if (!bounds) { return [ segment ]; } const { property , start: startBound , end: endBound } = bounds; const count = points.length; const { compare , between , normalize } = propertyFn(property); const { start , end , loop , style } = getSegment(segment, points, bounds); const result = []; let inside = false; let subStart = null; let value, point, prevValue; const startIsBefore = ()=>between(startBound, prevValue, value) && compare(startBound, prevValue) !== 0; const endIsBefore = ()=>compare(endBound, value) === 0 || between(endBound, prevValue, value); const shouldStart = ()=>inside || startIsBefore(); const shouldStop = ()=>!inside || endIsBefore(); for(let i = start, prev = start; i <= end; ++i){ point = points[i % count]; if (point.skip) { continue; } value = normalize(point[property]); if (value === prevValue) { continue; } inside = between(value, startBound, endBound); if (subStart === null && shouldStart()) { subStart = compare(value, startBound) === 0 ? i : prev; } if (subStart !== null && shouldStop()) { result.push(normalizeSegment({ start: subStart, end: i, loop, count, style })); subStart = null; } prev = i; prevValue = value; } if (subStart !== null) { result.push(normalizeSegment({ start: subStart, end, loop, count, style })); } return result; } function _boundSegments(line, bounds) { const result = []; const segments = line.segments; for(let i = 0; i < segments.length; i++){ const sub = _boundSegment(segments[i], line.points, bounds); if (sub.length) { result.push(...sub); } } return result; } function findStartAndEnd(points, count, loop, spanGaps) { let start = 0; let end = count - 1; if (loop && !spanGaps) { while(start < count && !points[start].skip){ start++; } } while(start < count && points[start].skip){ start++; } start %= count; if (loop) { end += start; } while(end > start && points[end % count].skip){ end--; } end %= count; return { start, end }; } function solidSegments(points, start, max, loop) { const count = points.length; const result = []; let last = start; let prev = points[start]; let end; for(end = start + 1; end <= max; ++end){ const cur = points[end % count]; if (cur.skip || cur.stop) { if (!prev.skip) { loop = false; result.push({ start: start % count, end: (end - 1) % count, loop }); start = last = cur.stop ? end : null; } } else { last = end; if (prev.skip) { start = end; } } prev = cur; } if (last !== null) { result.push({ start: start % count, end: last % count, loop }); } return result; } function _computeSegments(line, segmentOptions) { const points = line.points; const spanGaps = line.options.spanGaps; const count = points.length; if (!count) { return []; } const loop = !!line._loop; const { start , end } = findStartAndEnd(points, count, loop, spanGaps); if (spanGaps === true) { return splitByStyles(line, [ { start, end, loop } ], points, segmentOptions); } const max = end < start ? end + count : end; const completeLoop = !!line._fullLoop && start === 0 && end === count - 1; return splitByStyles(line, solidSegments(points, start, max, completeLoop), points, segmentOptions); } function splitByStyles(line, segments, points, segmentOptions) { if (!segmentOptions || !segmentOptions.setContext || !points) { return segments; } return doSplitByStyles(line, segments, points, segmentOptions); } function doSplitByStyles(line, segments, points, segmentOptions) { const chartContext = line._chart.getContext(); const baseStyle = readStyle(line.options); const { _datasetIndex: datasetIndex , options: { spanGaps } } = line; const count = points.length; const result = []; let prevStyle = baseStyle; let start = segments[0].start; let i = start; function addStyle(s, e, l, st) { const dir = spanGaps ? -1 : 1; if (s === e) { return; } s += count; while(points[s % count].skip){ s -= dir; } while(points[e % count].skip){ e += dir; } if (s % count !== e % count) { result.push({ start: s % count, end: e % count, loop: l, style: st }); prevStyle = st; start = e % count; } } for (const segment of segments){ start = spanGaps ? start : segment.start; let prev = points[start % count]; let style; for(i = start + 1; i <= segment.end; i++){ const pt = points[i % count]; style = readStyle(segmentOptions.setContext(createContext(chartContext, { type: 'segment', p0: prev, p1: pt, p0DataIndex: (i - 1) % count, p1DataIndex: i % count, datasetIndex }))); if (styleChanged(style, prevStyle)) { addStyle(start, i - 1, segment.loop, prevStyle); } prev = pt; prevStyle = style; } if (start < i - 1) { addStyle(start, i - 1, segment.loop, prevStyle); } } return result; } function readStyle(options) { return { backgroundColor: options.backgroundColor, borderCapStyle: options.borderCapStyle, borderDash: options.borderDash, borderDashOffset: options.borderDashOffset, borderJoinStyle: options.borderJoinStyle, borderWidth: options.borderWidth, borderColor: options.borderColor }; } function styleChanged(style, prevStyle) { if (!prevStyle) { return false; } const cache = []; const replacer = function(key, value) { if (!isPatternOrGradient(value)) { return value; } if (!cache.includes(value)) { cache.push(value); } return cache.indexOf(value); }; return JSON.stringify(style, replacer) !== JSON.stringify(prevStyle, replacer); } //# sourceMappingURL=helpers.segment.js.map /***/ }) /******/ }); /************************************************************************/ /******/ // The module cache /******/ var __webpack_module_cache__ = {}; /******/ /******/ // The require function /******/ function __webpack_require__(moduleId) { /******/ // Check if module is in cache /******/ var cachedModule = __webpack_module_cache__[moduleId]; /******/ if (cachedModule !== undefined) { /******/ return cachedModule.exports; /******/ } /******/ // Create a new module (and put it into the cache) /******/ var module = __webpack_module_cache__[moduleId] = { /******/ // no module.id needed /******/ // no module.loaded needed /******/ exports: {} /******/ }; /******/ /******/ // Execute the module function /******/ __webpack_modules__[moduleId](module, module.exports, __webpack_require__); /******/ /******/ // Return the exports of the module /******/ return module.exports; /******/ } /******/ /************************************************************************/ /******/ /* webpack/runtime/define property getters */ /******/ (() => { /******/ // define getter functions for harmony exports /******/ __webpack_require__.d = (exports, definition) => { /******/ for(var key in definition) { /******/ if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) { /******/ Object.defineProperty(exports, key, { enumerable: true, get: definition[key] }); /******/ } /******/ } /******/ }; /******/ })(); /******/ /******/ /* webpack/runtime/hasOwnProperty shorthand */ /******/ (() => { /******/ __webpack_require__.o = (obj, prop) => (Object.prototype.hasOwnProperty.call(obj, prop)) /******/ })(); /******/ /******/ /* webpack/runtime/make namespace object */ /******/ (() => { /******/ // define __esModule on exports /******/ __webpack_require__.r = (exports) => { /******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) { /******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' }); /******/ } /******/ Object.defineProperty(exports, '__esModule', { value: true }); /******/ }; /******/ })(); /******/ /************************************************************************/ var __webpack_exports__ = {}; // This entry need to be wrapped in an IIFE because it need to be isolated against other modules in the chunk. (() => { /*!************************************!*\ !*** ./public/javascripts/main.js ***! \************************************/ __webpack_require__.r(__webpack_exports__); /* harmony import */ var chart_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! chart.js */ "./node_modules/chart.js/dist/chart.js"); // Define color ranges for the different value ranges const colorRanges = { good: 'rgba(154, 204, 91, 0.2)', moderate: 'rgba(255, 235, 59, 0.2)', unhealthySensitive: 'rgba(255, 152, 0, 0.2)', unhealthy: 'rgba(255, 59, 59, 0.2)', veryUnhealthy: 'rgba(143, 63, 151, 0.2)', hazardous: 'rgba(126, 10, 2, 0.2)', }; // Define the annotations const annotations = { drawTime: 'beforeDatasetsDraw', annotations: [ { type: 'box', yScaleID: 'y-axis-0', yMin: 0, yMax: 12, backgroundColor: colorRanges.good, }, { type: 'box', yScaleID: 'y-axis-0', yMin: 12.1, yMax: 35.4, backgroundColor: colorRanges.moderate, }, { type: 'box', yScaleID: 'y-axis-0', yMin: 35.5, yMax: 55.4, backgroundColor: colorRanges.unhealthySensitive, }, { type: 'box', yScaleID: 'y-axis-0', yMin: 55.5, yMax: 150.4, backgroundColor: colorRanges.unhealthy, }, { type: 'box', yScaleID: 'y-axis-0', yMin: 150.5, yMax: 250.4, backgroundColor: colorRanges.veryUnhealthy, }, { type: 'box', yScaleID: 'y-axis-0', yMin: 250.5, yMax: 500.4, backgroundColor: colorRanges.hazardous, }, ], }; // Initialisiere das Chart-Objekt var ctx = document.getElementById('chart').getContext('2d'); var chart = new chart_js__WEBPACK_IMPORTED_MODULE_0__.Chart(ctx, { // Art des Diagramms type: 'line', // Daten data: { labels: [], datasets: [{ label: 'PM2.5', data: [], backgroundColor: 'rgba(255, 99, 132, 0.2)', borderColor: 'rgba(255,99,132,1)', borderWidth: 1, pointRadius: 0, fill: false }, { label: 'PM10', data: [], backgroundColor: 'rgba(54, 162, 235, 0.2)', borderColor: 'rgba(54, 162, 235, 1)', borderWidth: 1, pointRadius: 0, fill: false }] }, // Konfigurationsoptionen options: { maintainAspectRatio: false, responsive: true, title: { display: true, text: 'Feinstaubwerte' }, scales: { x: { /*type: 'time', time: { unit: 'hour', displayFormats: { hour: 'MMM D, hA' } },*/ display: true }, y: { display: true, scaleLabel: { display: true, labelString: 'µg/m³' }, beginAtZero: true, suggestedMin: 0, suggestedMax: 10 } } }, plugins: { annotation: annotations }, }); // Funktion zum Hinzufügen neuer Datenpunkte function addData(time, pm25, pm10) { // Füge die neuen Datenpunkte hinzu chart.data.labels.push(time); chart.data.datasets[0].data.push(pm25); chart.data.datasets[1].data.push(pm10); // Begrenze die Anzahl der Datenpunkte auf 100 oder die letzten 12 Stunden var maxPoints = 100; var maxTime = new Date(); maxTime.setHours(maxTime.getHours() - 12); while (chart.data.labels.length > maxPoints || (chart.data.labels.length > 0 && new Date(chart.data.labels[0]) < maxTime)) { chart.data.labels.shift(); chart.data.datasets[0].data.shift(); chart.data.datasets[1].data.shift(); } // Aktualisiere das Chart chart.update(); } setInterval(( ) => { addData(new Date().toLocaleTimeString(), 1+Math.floor(Math.random() *2), 3+Math.floor(Math.random() * 2)); }, 1000) })(); /******/ })() ; //# 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hex[(b & 0xF0) >> 4] + hex[b & 0xF];\nconst eq = b => ((b & 0xF0) >> 4) === (b & 0xF);\nconst isShort = v => eq(v.r) && eq(v.g) && eq(v.b) && eq(v.a);\nfunction hexParse(str) {\n  var len = str.length;\n  var ret;\n  if (str[0] === '#') {\n    if (len === 4 || len === 5) {\n      ret = {\n        r: 255 & map$1[str[1]] * 17,\n        g: 255 & map$1[str[2]] * 17,\n        b: 255 & map$1[str[3]] * 17,\n        a: len === 5 ? map$1[str[4]] * 17 : 255\n      };\n    } else if (len === 7 || len === 9) {\n      ret = {\n        r: map$1[str[1]] << 4 | map$1[str[2]],\n        g: map$1[str[3]] << 4 | map$1[str[4]],\n        b: map$1[str[5]] << 4 | map$1[str[6]],\n        a: len === 9 ? (map$1[str[7]] << 4 | map$1[str[8]]) : 255\n      };\n    }\n  }\n  return ret;\n}\nconst alpha = (a, f) => a < 255 ? f(a) : '';\nfunction hexString(v) {\n  var f = isShort(v) ? h1 : h2;\n  return v\n    ? '#' + f(v.r) + f(v.g) + f(v.b) + alpha(v.a, f)\n    : undefined;\n}\n\nconst HUE_RE = /^(hsla?|hwb|hsv)\\(\\s*([-+.e\\d]+)(?:deg)?[\\s,]+([-+.e\\d]+)%[\\s,]+([-+.e\\d]+)%(?:[\\s,]+([-+.e\\d]+)(%)?)?\\s*\\)$/;\nfunction hsl2rgbn(h, s, l) {\n  const a = s * Math.min(l, 1 - l);\n  const f = (n, k = (n + h / 30) % 12) => l - a * Math.max(Math.min(k - 3, 9 - k, 1), -1);\n  return [f(0), f(8), f(4)];\n}\nfunction hsv2rgbn(h, s, v) {\n  const f = (n, k = (n + h / 60) % 6) => v - v * s * Math.max(Math.min(k, 4 - k, 1), 0);\n  return [f(5), f(3), f(1)];\n}\nfunction hwb2rgbn(h, w, b) {\n  const rgb = hsl2rgbn(h, 1, 0.5);\n  let i;\n  if (w + b > 1) {\n    i = 1 / (w + b);\n    w *= i;\n    b *= i;\n  }\n  for (i = 0; i < 3; i++) {\n    rgb[i] *= 1 - w - b;\n    rgb[i] += w;\n  }\n  return rgb;\n}\nfunction hueValue(r, g, b, d, max) {\n  if (r === max) {\n    return ((g - b) / d) + (g < b ? 6 : 0);\n  }\n  if (g === max) {\n    return (b - r) / d + 2;\n  }\n  return (r - g) / d + 4;\n}\nfunction rgb2hsl(v) {\n  const range = 255;\n  const r = v.r / range;\n  const g = v.g / range;\n  const b = v.b / range;\n  const max = Math.max(r, g, b);\n  const min = Math.min(r, g, b);\n  const l = (max + min) / 2;\n  let h, s, d;\n  if (max !== min) {\n    d = max - min;\n    s = l > 0.5 ? d / (2 - max - min) : d / (max + min);\n    h = hueValue(r, g, b, d, max);\n    h = h * 60 + 0.5;\n  }\n  return [h | 0, s || 0, l];\n}\nfunction calln(f, a, b, c) {\n  return (\n    Array.isArray(a)\n      ? f(a[0], a[1], a[2])\n      : f(a, b, c)\n  ).map(n2b);\n}\nfunction hsl2rgb(h, s, l) {\n  return calln(hsl2rgbn, h, s, l);\n}\nfunction hwb2rgb(h, w, b) {\n  return calln(hwb2rgbn, h, w, b);\n}\nfunction hsv2rgb(h, s, v) {\n  return calln(hsv2rgbn, h, s, v);\n}\nfunction hue(h) {\n  return (h % 360 + 360) % 360;\n}\nfunction hueParse(str) {\n  const m = HUE_RE.exec(str);\n  let a = 255;\n  let v;\n  if (!m) {\n    return;\n  }\n  if (m[5] !== v) {\n    a = m[6] ? p2b(+m[5]) : n2b(+m[5]);\n  }\n  const h = hue(+m[2]);\n  const p1 = +m[3] / 100;\n  const p2 = +m[4] / 100;\n  if (m[1] === 'hwb') {\n    v = hwb2rgb(h, p1, p2);\n  } else if (m[1] === 'hsv') {\n    v = hsv2rgb(h, p1, p2);\n  } else {\n    v = hsl2rgb(h, p1, p2);\n  }\n  return {\n    r: v[0],\n    g: v[1],\n    b: v[2],\n    a: a\n  };\n}\nfunction rotate(v, deg) {\n  var h = rgb2hsl(v);\n  h[0] = hue(h[0] + deg);\n  h = hsl2rgb(h);\n  v.r = h[0];\n  v.g = h[1];\n  v.b = h[2];\n}\nfunction hslString(v) {\n  if (!v) {\n    return;\n  }\n  const a = rgb2hsl(v);\n  const h = a[0];\n  const s = n2p(a[1]);\n  const l = n2p(a[2]);\n  return v.a < 255\n    ? `hsla(${h}, ${s}%, ${l}%, ${b2n(v.a)})`\n    : `hsl(${h}, ${s}%, ${l}%)`;\n}\n\nconst map = {\n  x: 'dark',\n  Z: 'light',\n  Y: 're',\n  X: 'blu',\n  W: 'gr',\n  V: 'medium',\n  U: 'slate',\n  A: 'ee',\n  T: 'ol',\n  S: 'or',\n  B: 'ra',\n  C: 'lateg',\n  D: 'ights',\n  R: 'in',\n  Q: 'turquois',\n  E: 'hi',\n  P: 'ro',\n  O: 'al',\n  N: 'le',\n  M: 'de',\n  L: 'yello',\n  F: 'en',\n  K: 'ch',\n  G: 'arks',\n  H: 'ea',\n  I: 'ightg',\n  J: 'wh'\n};\nconst names$1 = {\n  OiceXe: 'f0f8ff',\n  antiquewEte: 'faebd7',\n  aqua: 'ffff',\n  aquamarRe: '7fffd4',\n  azuY: 'f0ffff',\n  beige: 'f5f5dc',\n  bisque: 'ffe4c4',\n  black: '0',\n  blanKedOmond: 'ffebcd',\n  Xe: 'ff',\n  XeviTet: '8a2be2',\n  bPwn: 'a52a2a',\n  burlywood: 'deb887',\n  caMtXe: '5f9ea0',\n  KartYuse: '7fff00',\n  KocTate: 'd2691e',\n  cSO: 'ff7f50',\n  cSnflowerXe: '6495ed',\n  cSnsilk: 'fff8dc',\n  crimson: 'dc143c',\n  cyan: 'ffff',\n  xXe: '8b',\n  xcyan: '8b8b',\n  xgTMnPd: 'b8860b',\n  xWay: 'a9a9a9',\n  xgYF: '6400',\n  xgYy: 'a9a9a9',\n  xkhaki: 'bdb76b',\n  xmagFta: '8b008b',\n  xTivegYF: '556b2f',\n  xSange: 'ff8c00',\n  xScEd: '9932cc',\n  xYd: '8b0000',\n  xsOmon: 'e9967a',\n  xsHgYF: '8fbc8f',\n  xUXe: '483d8b',\n  xUWay: '2f4f4f',\n  xUgYy: '2f4f4f',\n  xQe: 'ced1',\n  xviTet: '9400d3',\n  dAppRk: 'ff1493',\n  dApskyXe: 'bfff',\n  dimWay: '696969',\n  dimgYy: '696969',\n  dodgerXe: '1e90ff',\n  fiYbrick: 'b22222',\n  flSOwEte: 'fffaf0',\n  foYstWAn: '228b22',\n  fuKsia: 'ff00ff',\n  gaRsbSo: 'dcdcdc',\n  ghostwEte: 'f8f8ff',\n  gTd: 'ffd700',\n  gTMnPd: 'daa520',\n  Way: '808080',\n  gYF: '8000',\n  gYFLw: 'adff2f',\n  gYy: '808080',\n  honeyMw: 'f0fff0',\n  hotpRk: 'ff69b4',\n  RdianYd: 'cd5c5c',\n  Rdigo: '4b0082',\n  ivSy: 'fffff0',\n  khaki: 'f0e68c',\n  lavFMr: 'e6e6fa',\n  lavFMrXsh: 'fff0f5',\n  lawngYF: '7cfc00',\n  NmoncEffon: 'fffacd',\n  ZXe: 'add8e6',\n  ZcSO: 'f08080',\n  Zcyan: 'e0ffff',\n  ZgTMnPdLw: 'fafad2',\n  ZWay: 'd3d3d3',\n  ZgYF: '90ee90',\n  ZgYy: 'd3d3d3',\n  ZpRk: 'ffb6c1',\n  ZsOmon: 'ffa07a',\n  ZsHgYF: '20b2aa',\n  ZskyXe: '87cefa',\n  ZUWay: '778899',\n  ZUgYy: '778899',\n  ZstAlXe: 'b0c4de',\n  ZLw: 'ffffe0',\n  lime: 'ff00',\n  limegYF: '32cd32',\n  lRF: 'faf0e6',\n  magFta: 'ff00ff',\n  maPon: '800000',\n  VaquamarRe: '66cdaa',\n  VXe: 'cd',\n  VScEd: 'ba55d3',\n  VpurpN: '9370db',\n  VsHgYF: '3cb371',\n  VUXe: '7b68ee',\n  VsprRggYF: 'fa9a',\n  VQe: '48d1cc',\n  VviTetYd: 'c71585',\n  midnightXe: '191970',\n  mRtcYam: 'f5fffa',\n  mistyPse: 'ffe4e1',\n  moccasR: 'ffe4b5',\n  navajowEte: 'ffdead',\n  navy: '80',\n  Tdlace: 'fdf5e6',\n  Tive: '808000',\n  TivedBb: '6b8e23',\n  Sange: 'ffa500',\n  SangeYd: 'ff4500',\n  ScEd: 'da70d6',\n  pOegTMnPd: 'eee8aa',\n  pOegYF: '98fb98',\n  pOeQe: 'afeeee',\n  pOeviTetYd: 'db7093',\n  papayawEp: 'ffefd5',\n  pHKpuff: 'ffdab9',\n  peru: 'cd853f',\n  pRk: 'ffc0cb',\n  plum: 'dda0dd',\n  powMrXe: 'b0e0e6',\n  purpN: '800080',\n  YbeccapurpN: '663399',\n  Yd: 'ff0000',\n  Psybrown: 'bc8f8f',\n  PyOXe: '4169e1',\n  saddNbPwn: '8b4513',\n  sOmon: 'fa8072',\n  sandybPwn: 'f4a460',\n  sHgYF: '2e8b57',\n  sHshell: 'fff5ee',\n  siFna: 'a0522d',\n  silver: 'c0c0c0',\n  skyXe: '87ceeb',\n  UXe: '6a5acd',\n  UWay: '708090',\n  UgYy: '708090',\n  snow: 'fffafa',\n  sprRggYF: 'ff7f',\n  stAlXe: '4682b4',\n  tan: 'd2b48c',\n  teO: '8080',\n  tEstN: 'd8bfd8',\n  tomato: 'ff6347',\n  Qe: '40e0d0',\n  viTet: 'ee82ee',\n  JHt: 'f5deb3',\n  wEte: 'ffffff',\n  wEtesmoke: 'f5f5f5',\n  Lw: 'ffff00',\n  LwgYF: '9acd32'\n};\nfunction unpack() {\n  const unpacked = {};\n  const keys = Object.keys(names$1);\n  const tkeys = Object.keys(map);\n  let i, j, k, ok, nk;\n  for (i = 0; i < keys.length; i++) {\n    ok = nk = keys[i];\n    for (j = 0; j < tkeys.length; j++) {\n      k = tkeys[j];\n      nk = nk.replace(k, map[k]);\n    }\n    k = parseInt(names$1[ok], 16);\n    unpacked[nk] = [k >> 16 & 0xFF, k >> 8 & 0xFF, k & 0xFF];\n  }\n  return unpacked;\n}\n\nlet names;\nfunction nameParse(str) {\n  if (!names) {\n    names = unpack();\n    names.transparent = [0, 0, 0, 0];\n  }\n  const a = names[str.toLowerCase()];\n  return a && {\n    r: a[0],\n    g: a[1],\n    b: a[2],\n    a: a.length === 4 ? a[3] : 255\n  };\n}\n\nconst RGB_RE = /^rgba?\\(\\s*([-+.\\d]+)(%)?[\\s,]+([-+.e\\d]+)(%)?[\\s,]+([-+.e\\d]+)(%)?(?:[\\s,/]+([-+.e\\d]+)(%)?)?\\s*\\)$/;\nfunction rgbParse(str) {\n  const m = RGB_RE.exec(str);\n  let a = 255;\n  let r, g, b;\n  if (!m) {\n    return;\n  }\n  if (m[7] !== r) {\n    const v = +m[7];\n    a = m[8] ? p2b(v) : lim(v * 255, 0, 255);\n  }\n  r = +m[1];\n  g = +m[3];\n  b = +m[5];\n  r = 255 & (m[2] ? p2b(r) : lim(r, 0, 255));\n  g = 255 & (m[4] ? p2b(g) : lim(g, 0, 255));\n  b = 255 & (m[6] ? p2b(b) : lim(b, 0, 255));\n  return {\n    r: r,\n    g: g,\n    b: b,\n    a: a\n  };\n}\nfunction rgbString(v) {\n  return v && (\n    v.a < 255\n      ? `rgba(${v.r}, ${v.g}, ${v.b}, ${b2n(v.a)})`\n      : `rgb(${v.r}, ${v.g}, ${v.b})`\n  );\n}\n\nconst to = v => v <= 0.0031308 ? v * 12.92 : Math.pow(v, 1.0 / 2.4) * 1.055 - 0.055;\nconst from = v => v <= 0.04045 ? v / 12.92 : Math.pow((v + 0.055) / 1.055, 2.4);\nfunction interpolate(rgb1, rgb2, t) {\n  const r = from(b2n(rgb1.r));\n  const g = from(b2n(rgb1.g));\n  const b = from(b2n(rgb1.b));\n  return {\n    r: n2b(to(r + t * (from(b2n(rgb2.r)) - r))),\n    g: n2b(to(g + t * (from(b2n(rgb2.g)) - g))),\n    b: n2b(to(b + t * (from(b2n(rgb2.b)) - b))),\n    a: rgb1.a + t * (rgb2.a - rgb1.a)\n  };\n}\n\nfunction modHSL(v, i, ratio) {\n  if (v) {\n    let tmp = rgb2hsl(v);\n    tmp[i] = Math.max(0, Math.min(tmp[i] + tmp[i] * ratio, i === 0 ? 360 : 1));\n    tmp = hsl2rgb(tmp);\n    v.r = tmp[0];\n    v.g = tmp[1];\n    v.b = tmp[2];\n  }\n}\nfunction clone(v, proto) {\n  return v ? Object.assign(proto || {}, v) : v;\n}\nfunction fromObject(input) {\n  var v = {r: 0, g: 0, b: 0, a: 255};\n  if (Array.isArray(input)) {\n    if (input.length >= 3) {\n      v = {r: input[0], g: input[1], b: input[2], a: 255};\n      if (input.length > 3) {\n        v.a = n2b(input[3]);\n      }\n    }\n  } else {\n    v = clone(input, {r: 0, g: 0, b: 0, a: 1});\n    v.a = n2b(v.a);\n  }\n  return v;\n}\nfunction functionParse(str) {\n  if (str.charAt(0) === 'r') {\n    return rgbParse(str);\n  }\n  return hueParse(str);\n}\nclass Color {\n  constructor(input) {\n    if (input instanceof Color) {\n      return input;\n    }\n    const type = typeof input;\n    let v;\n    if (type === 'object') {\n      v = fromObject(input);\n    } else if (type === 'string') {\n      v = hexParse(input) || nameParse(input) || functionParse(input);\n    }\n    this._rgb = v;\n    this._valid = !!v;\n  }\n  get valid() {\n    return this._valid;\n  }\n  get rgb() {\n    var v = clone(this._rgb);\n    if (v) {\n      v.a = b2n(v.a);\n    }\n    return v;\n  }\n  set rgb(obj) {\n    this._rgb = fromObject(obj);\n  }\n  rgbString() {\n    return this._valid ? rgbString(this._rgb) : undefined;\n  }\n  hexString() {\n    return this._valid ? hexString(this._rgb) : undefined;\n  }\n  hslString() {\n    return this._valid ? hslString(this._rgb) : undefined;\n  }\n  mix(color, weight) {\n    if (color) {\n      const c1 = this.rgb;\n      const c2 = color.rgb;\n      let w2;\n      const p = weight === w2 ? 0.5 : weight;\n      const w = 2 * p - 1;\n      const a = c1.a - c2.a;\n      const w1 = ((w * a === -1 ? w : (w + a) / (1 + w * a)) + 1) / 2.0;\n      w2 = 1 - w1;\n      c1.r = 0xFF & w1 * c1.r + w2 * c2.r + 0.5;\n      c1.g = 0xFF & w1 * c1.g + w2 * c2.g + 0.5;\n      c1.b = 0xFF & w1 * c1.b + w2 * c2.b + 0.5;\n      c1.a = p * c1.a + (1 - p) * c2.a;\n      this.rgb = c1;\n    }\n    return this;\n  }\n  interpolate(color, t) {\n    if (color) {\n      this._rgb = interpolate(this._rgb, color._rgb, t);\n    }\n    return this;\n  }\n  clone() {\n    return new Color(this.rgb);\n  }\n  alpha(a) {\n    this._rgb.a = n2b(a);\n    return this;\n  }\n  clearer(ratio) {\n    const rgb = this._rgb;\n    rgb.a *= 1 - ratio;\n    return this;\n  }\n  greyscale() {\n    const rgb = this._rgb;\n    const val = round(rgb.r * 0.3 + rgb.g * 0.59 + rgb.b * 0.11);\n    rgb.r = rgb.g = rgb.b = val;\n    return this;\n  }\n  opaquer(ratio) {\n    const rgb = this._rgb;\n    rgb.a *= 1 + ratio;\n    return this;\n  }\n  negate() {\n    const v = this._rgb;\n    v.r = 255 - v.r;\n    v.g = 255 - v.g;\n    v.b = 255 - v.b;\n    return this;\n  }\n  lighten(ratio) {\n    modHSL(this._rgb, 2, ratio);\n    return this;\n  }\n  darken(ratio) {\n    modHSL(this._rgb, 2, -ratio);\n    return this;\n  }\n  saturate(ratio) {\n    modHSL(this._rgb, 1, ratio);\n    return this;\n  }\n  desaturate(ratio) {\n    modHSL(this._rgb, 1, -ratio);\n    return this;\n  }\n  rotate(deg) {\n    rotate(this._rgb, deg);\n    return this;\n  }\n}\n\nfunction index_esm(input) {\n  return new Color(input);\n}\n\nexport { Color, b2n, b2p, index_esm as default, hexParse, hexString, hsl2rgb, hslString, hsv2rgb, hueParse, hwb2rgb, lim, n2b, n2p, nameParse, p2b, rgb2hsl, rgbParse, rgbString, rotate, round };\n","/*!\n * Chart.js v4.3.0\n * https://www.chartjs.org\n * (c) 2023 Chart.js Contributors\n * Released under the MIT License\n */\nimport { r as requestAnimFrame, a as resolve, e as effects, c as color, i as isObject, d as defaults, b as isArray, v as valueOrDefault, u as unlistenArrayEvents, l as listenArrayEvents, f as resolveObjectKey, g as isNumberFinite, h as defined, s as sign, j as createContext, k as isNullOrUndef, _ as _arrayUnique, t as toRadians, m as toPercentage, n as toDimension, T as TAU, o as formatNumber, p as _angleBetween, H as HALF_PI, P as PI, q as _getStartAndCountOfVisiblePoints, w as _scaleRangesChanged, x as isNumber, y as _parseObjectDataRadialScale, z as getRelativePosition, A as _rlookupByKey, B as _lookupByKey, C as _isPointInArea, D as getAngleFromPoint, E as toPadding, F as each, G as getMaximumSize, I as _getParentNode, J as readUsedSize, K as supportsEventListenerOptions, L as throttled, M as _isDomSupported, N as _factorize, O as finiteOrDefault, Q as callback, R as _addGrace, S as _limitValue, U as toDegrees, V as _measureText, W as _int16Range, X as _alignPixel, Y as clipArea, Z as renderText, $ as unclipArea, a0 as toFont, a1 as _toLeftRightCenter, a2 as _alignStartEnd, a3 as overrides, a4 as merge, a5 as _capitalize, a6 as descriptors, a7 as isFunction, a8 as _attachContext, a9 as _createResolver, aa as _descriptors, ab as mergeIf, ac as uid, ad as debounce, ae as retinaScale, af as clearCanvas, ag as setsEqual, ah as _elementsEqual, ai as _isClickEvent, aj as _isBetween, ak as _readValueToProps, al as _updateBezierControlPoints, am as _computeSegments, an as _boundSegments, ao as _steppedInterpolation, ap as _bezierInterpolation, aq as _pointInLine, ar as _steppedLineTo, as as _bezierCurveTo, at as drawPoint, au as addRoundedRectPath, av as toTRBL, aw as toTRBLCorners, ax as _boundSegment, ay as _normalizeAngle, az as getRtlAdapter, aA as overrideTextDirection, aB as _textX, aC as restoreTextDirection, aD as drawPointLegend, aE as distanceBetweenPoints, aF as noop, aG as _setMinAndMaxByKey, aH as niceNum, aI as almostWhole, aJ as almostEquals, aK as _decimalPlaces, aL as Ticks, aM as log10, aN as _longestText, aO as _filterBetween, aP as _lookup } from './chunks/helpers.segment.js';\nimport '@kurkle/color';\n\nclass Animator {\n    constructor(){\n        this._request = null;\n        this._charts = new Map();\n        this._running = false;\n        this._lastDate = undefined;\n    }\n _notify(chart, anims, date, type) {\n        const callbacks = anims.listeners[type];\n        const numSteps = anims.duration;\n        callbacks.forEach((fn)=>fn({\n                chart,\n                initial: anims.initial,\n                numSteps,\n                currentStep: Math.min(date - anims.start, numSteps)\n            }));\n    }\n _refresh() {\n        if (this._request) {\n            return;\n        }\n        this._running = true;\n        this._request = requestAnimFrame.call(window, ()=>{\n            this._update();\n            this._request = null;\n            if (this._running) {\n                this._refresh();\n            }\n        });\n    }\n _update(date = Date.now()) {\n        let remaining = 0;\n        this._charts.forEach((anims, chart)=>{\n            if (!anims.running || !anims.items.length) {\n                return;\n            }\n            const items = anims.items;\n            let i = items.length - 1;\n            let draw = false;\n            let item;\n            for(; i >= 0; --i){\n                item = items[i];\n                if (item._active) {\n                    if (item._total > anims.duration) {\n                        anims.duration = item._total;\n                    }\n                    item.tick(date);\n                    draw = true;\n                } else {\n                    items[i] = items[items.length - 1];\n                    items.pop();\n                }\n            }\n            if (draw) {\n                chart.draw();\n                this._notify(chart, anims, date, 'progress');\n            }\n            if (!items.length) {\n                anims.running = false;\n                this._notify(chart, anims, date, 'complete');\n                anims.initial = false;\n            }\n            remaining += items.length;\n        });\n        this._lastDate = date;\n        if (remaining === 0) {\n            this._running = false;\n        }\n    }\n _getAnims(chart) {\n        const charts = this._charts;\n        let anims = charts.get(chart);\n        if (!anims) {\n            anims = {\n                running: false,\n                initial: true,\n                items: [],\n                listeners: {\n                    complete: [],\n                    progress: []\n                }\n            };\n            charts.set(chart, anims);\n        }\n        return anims;\n    }\n listen(chart, event, cb) {\n        this._getAnims(chart).listeners[event].push(cb);\n    }\n add(chart, items) {\n        if (!items || !items.length) {\n            return;\n        }\n        this._getAnims(chart).items.push(...items);\n    }\n has(chart) {\n        return this._getAnims(chart).items.length > 0;\n    }\n start(chart) {\n        const anims = this._charts.get(chart);\n        if (!anims) {\n            return;\n        }\n        anims.running = true;\n        anims.start = Date.now();\n        anims.duration = anims.items.reduce((acc, cur)=>Math.max(acc, cur._duration), 0);\n        this._refresh();\n    }\n    running(chart) {\n        if (!this._running) {\n            return false;\n        }\n        const anims = this._charts.get(chart);\n        if (!anims || !anims.running || !anims.items.length) {\n            return false;\n        }\n        return true;\n    }\n stop(chart) {\n        const anims = this._charts.get(chart);\n        if (!anims || !anims.items.length) {\n            return;\n        }\n        const items = anims.items;\n        let i = items.length - 1;\n        for(; i >= 0; --i){\n            items[i].cancel();\n        }\n        anims.items = [];\n        this._notify(chart, anims, Date.now(), 'complete');\n    }\n remove(chart) {\n        return this._charts.delete(chart);\n    }\n}\nvar animator = /* #__PURE__ */ new Animator();\n\nconst transparent = 'transparent';\nconst interpolators = {\n    boolean (from, to, factor) {\n        return factor > 0.5 ? to : from;\n    },\n color (from, to, factor) {\n        const c0 = color(from || transparent);\n        const c1 = c0.valid && color(to || transparent);\n        return c1 && c1.valid ? c1.mix(c0, factor).hexString() : to;\n    },\n    number (from, to, factor) {\n        return from + (to - from) * factor;\n    }\n};\nclass Animation {\n    constructor(cfg, target, prop, to){\n        const currentValue = target[prop];\n        to = resolve([\n            cfg.to,\n            to,\n            currentValue,\n            cfg.from\n        ]);\n        const from = resolve([\n            cfg.from,\n            currentValue,\n            to\n        ]);\n        this._active = true;\n        this._fn = cfg.fn || interpolators[cfg.type || typeof from];\n        this._easing = effects[cfg.easing] || effects.linear;\n        this._start = Math.floor(Date.now() + (cfg.delay || 0));\n        this._duration = this._total = Math.floor(cfg.duration);\n        this._loop = !!cfg.loop;\n        this._target = target;\n        this._prop = prop;\n        this._from = from;\n        this._to = to;\n        this._promises = undefined;\n    }\n    active() {\n        return this._active;\n    }\n    update(cfg, to, date) {\n        if (this._active) {\n            this._notify(false);\n            const currentValue = this._target[this._prop];\n            const elapsed = date - this._start;\n            const remain = this._duration - elapsed;\n            this._start = date;\n            this._duration = Math.floor(Math.max(remain, cfg.duration));\n            this._total += elapsed;\n            this._loop = !!cfg.loop;\n            this._to = resolve([\n                cfg.to,\n                to,\n                currentValue,\n                cfg.from\n            ]);\n            this._from = resolve([\n                cfg.from,\n                currentValue,\n                to\n            ]);\n        }\n    }\n    cancel() {\n        if (this._active) {\n            this.tick(Date.now());\n            this._active = false;\n            this._notify(false);\n        }\n    }\n    tick(date) {\n        const elapsed = date - this._start;\n        const duration = this._duration;\n        const prop = this._prop;\n        const from = this._from;\n        const loop = this._loop;\n        const to = this._to;\n        let factor;\n        this._active = from !== to && (loop || elapsed < duration);\n        if (!this._active) {\n            this._target[prop] = to;\n            this._notify(true);\n            return;\n        }\n        if (elapsed < 0) {\n            this._target[prop] = from;\n            return;\n        }\n        factor = elapsed / duration % 2;\n        factor = loop && factor > 1 ? 2 - factor : factor;\n        factor = this._easing(Math.min(1, Math.max(0, factor)));\n        this._target[prop] = this._fn(from, to, factor);\n    }\n    wait() {\n        const promises = this._promises || (this._promises = []);\n        return new Promise((res, rej)=>{\n            promises.push({\n                res,\n                rej\n            });\n        });\n    }\n    _notify(resolved) {\n        const method = resolved ? 'res' : 'rej';\n        const promises = this._promises || [];\n        for(let i = 0; i < promises.length; i++){\n            promises[i][method]();\n        }\n    }\n}\n\nclass Animations {\n    constructor(chart, config){\n        this._chart = chart;\n        this._properties = new Map();\n        this.configure(config);\n    }\n    configure(config) {\n        if (!isObject(config)) {\n            return;\n        }\n        const animationOptions = Object.keys(defaults.animation);\n        const animatedProps = this._properties;\n        Object.getOwnPropertyNames(config).forEach((key)=>{\n            const cfg = config[key];\n            if (!isObject(cfg)) {\n                return;\n            }\n            const resolved = {};\n            for (const option of animationOptions){\n                resolved[option] = cfg[option];\n            }\n            (isArray(cfg.properties) && cfg.properties || [\n                key\n            ]).forEach((prop)=>{\n                if (prop === key || !animatedProps.has(prop)) {\n                    animatedProps.set(prop, resolved);\n                }\n            });\n        });\n    }\n _animateOptions(target, values) {\n        const newOptions = values.options;\n        const options = resolveTargetOptions(target, newOptions);\n        if (!options) {\n            return [];\n        }\n        const animations = this._createAnimations(options, newOptions);\n        if (newOptions.$shared) {\n            awaitAll(target.options.$animations, newOptions).then(()=>{\n                target.options = newOptions;\n            }, ()=>{\n            });\n        }\n        return animations;\n    }\n _createAnimations(target, values) {\n        const animatedProps = this._properties;\n        const animations = [];\n        const running = target.$animations || (target.$animations = {});\n        const props = Object.keys(values);\n        const date = Date.now();\n        let i;\n        for(i = props.length - 1; i >= 0; --i){\n            const prop = props[i];\n            if (prop.charAt(0) === '$') {\n                continue;\n            }\n            if (prop === 'options') {\n                animations.push(...this._animateOptions(target, values));\n                continue;\n            }\n            const value = values[prop];\n            let animation = running[prop];\n            const cfg = animatedProps.get(prop);\n            if (animation) {\n                if (cfg && animation.active()) {\n                    animation.update(cfg, value, date);\n                    continue;\n                } else {\n                    animation.cancel();\n                }\n            }\n            if (!cfg || !cfg.duration) {\n                target[prop] = value;\n                continue;\n            }\n            running[prop] = animation = new Animation(cfg, target, prop, value);\n            animations.push(animation);\n        }\n        return animations;\n    }\n update(target, values) {\n        if (this._properties.size === 0) {\n            Object.assign(target, values);\n            return;\n        }\n        const animations = this._createAnimations(target, values);\n        if (animations.length) {\n            animator.add(this._chart, animations);\n            return true;\n        }\n    }\n}\nfunction awaitAll(animations, properties) {\n    const running = [];\n    const keys = Object.keys(properties);\n    for(let i = 0; i < keys.length; i++){\n        const anim = animations[keys[i]];\n        if (anim && anim.active()) {\n            running.push(anim.wait());\n        }\n    }\n    return Promise.all(running);\n}\nfunction resolveTargetOptions(target, newOptions) {\n    if (!newOptions) {\n        return;\n    }\n    let options = target.options;\n    if (!options) {\n        target.options = newOptions;\n        return;\n    }\n    if (options.$shared) {\n        target.options = options = Object.assign({}, options, {\n            $shared: false,\n            $animations: {}\n        });\n    }\n    return options;\n}\n\nfunction scaleClip(scale, allowedOverflow) {\n    const opts = scale && scale.options || {};\n    const reverse = opts.reverse;\n    const min = opts.min === undefined ? allowedOverflow : 0;\n    const max = opts.max === undefined ? allowedOverflow : 0;\n    return {\n        start: reverse ? max : min,\n        end: reverse ? min : max\n    };\n}\nfunction defaultClip(xScale, yScale, allowedOverflow) {\n    if (allowedOverflow === false) {\n        return false;\n    }\n    const x = scaleClip(xScale, allowedOverflow);\n    const y = scaleClip(yScale, allowedOverflow);\n    return {\n        top: y.end,\n        right: x.end,\n        bottom: y.start,\n        left: x.start\n    };\n}\nfunction toClip(value) {\n    let t, r, b, l;\n    if (isObject(value)) {\n        t = value.top;\n        r = value.right;\n        b = value.bottom;\n        l = value.left;\n    } else {\n        t = r = b = l = value;\n    }\n    return {\n        top: t,\n        right: r,\n        bottom: b,\n        left: l,\n        disabled: value === false\n    };\n}\nfunction getSortedDatasetIndices(chart, filterVisible) {\n    const keys = [];\n    const metasets = chart._getSortedDatasetMetas(filterVisible);\n    let i, ilen;\n    for(i = 0, ilen = metasets.length; i < ilen; ++i){\n        keys.push(metasets[i].index);\n    }\n    return keys;\n}\nfunction applyStack(stack, value, dsIndex, options = {}) {\n    const keys = stack.keys;\n    const singleMode = options.mode === 'single';\n    let i, ilen, datasetIndex, otherValue;\n    if (value === null) {\n        return;\n    }\n    for(i = 0, ilen = keys.length; i < ilen; ++i){\n        datasetIndex = +keys[i];\n        if (datasetIndex === dsIndex) {\n            if (options.all) {\n                continue;\n            }\n            break;\n        }\n        otherValue = stack.values[datasetIndex];\n        if (isNumberFinite(otherValue) && (singleMode || value === 0 || sign(value) === sign(otherValue))) {\n            value += otherValue;\n        }\n    }\n    return value;\n}\nfunction convertObjectDataToArray(data) {\n    const keys = Object.keys(data);\n    const adata = new Array(keys.length);\n    let i, ilen, key;\n    for(i = 0, ilen = keys.length; i < ilen; ++i){\n        key = keys[i];\n        adata[i] = {\n            x: key,\n            y: data[key]\n        };\n    }\n    return adata;\n}\nfunction isStacked(scale, meta) {\n    const stacked = scale && scale.options.stacked;\n    return stacked || stacked === undefined && meta.stack !== undefined;\n}\nfunction getStackKey(indexScale, valueScale, meta) {\n    return `${indexScale.id}.${valueScale.id}.${meta.stack || meta.type}`;\n}\nfunction getUserBounds(scale) {\n    const { min , max , minDefined , maxDefined  } = scale.getUserBounds();\n    return {\n        min: minDefined ? min : Number.NEGATIVE_INFINITY,\n        max: maxDefined ? max : Number.POSITIVE_INFINITY\n    };\n}\nfunction getOrCreateStack(stacks, stackKey, indexValue) {\n    const subStack = stacks[stackKey] || (stacks[stackKey] = {});\n    return subStack[indexValue] || (subStack[indexValue] = {});\n}\nfunction getLastIndexInStack(stack, vScale, positive, type) {\n    for (const meta of vScale.getMatchingVisibleMetas(type).reverse()){\n        const value = stack[meta.index];\n        if (positive && value > 0 || !positive && value < 0) {\n            return meta.index;\n        }\n    }\n    return null;\n}\nfunction updateStacks(controller, parsed) {\n    const { chart , _cachedMeta: meta  } = controller;\n    const stacks = chart._stacks || (chart._stacks = {});\n    const { iScale , vScale , index: datasetIndex  } = meta;\n    const iAxis = iScale.axis;\n    const vAxis = vScale.axis;\n    const key = getStackKey(iScale, vScale, meta);\n    const ilen = parsed.length;\n    let stack;\n    for(let i = 0; i < ilen; ++i){\n        const item = parsed[i];\n        const { [iAxis]: index , [vAxis]: value  } = item;\n        const itemStacks = item._stacks || (item._stacks = {});\n        stack = itemStacks[vAxis] = getOrCreateStack(stacks, key, index);\n        stack[datasetIndex] = value;\n        stack._top = getLastIndexInStack(stack, vScale, true, meta.type);\n        stack._bottom = getLastIndexInStack(stack, vScale, false, meta.type);\n        const visualValues = stack._visualValues || (stack._visualValues = {});\n        visualValues[datasetIndex] = value;\n    }\n}\nfunction getFirstScaleId(chart, axis) {\n    const scales = chart.scales;\n    return Object.keys(scales).filter((key)=>scales[key].axis === axis).shift();\n}\nfunction createDatasetContext(parent, index) {\n    return createContext(parent, {\n        active: false,\n        dataset: undefined,\n        datasetIndex: index,\n        index,\n        mode: 'default',\n        type: 'dataset'\n    });\n}\nfunction createDataContext(parent, index, element) {\n    return createContext(parent, {\n        active: false,\n        dataIndex: index,\n        parsed: undefined,\n        raw: undefined,\n        element,\n        index,\n        mode: 'default',\n        type: 'data'\n    });\n}\nfunction clearStacks(meta, items) {\n    const datasetIndex = meta.controller.index;\n    const axis = meta.vScale && meta.vScale.axis;\n    if (!axis) {\n        return;\n    }\n    items = items || meta._parsed;\n    for (const parsed of items){\n        const stacks = parsed._stacks;\n        if (!stacks || stacks[axis] === undefined || stacks[axis][datasetIndex] === undefined) {\n            return;\n        }\n        delete stacks[axis][datasetIndex];\n        if (stacks[axis]._visualValues !== undefined && stacks[axis]._visualValues[datasetIndex] !== undefined) {\n            delete stacks[axis]._visualValues[datasetIndex];\n        }\n    }\n}\nconst isDirectUpdateMode = (mode)=>mode === 'reset' || mode === 'none';\nconst cloneIfNotShared = (cached, shared)=>shared ? cached : Object.assign({}, cached);\nconst createStack = (canStack, meta, chart)=>canStack && !meta.hidden && meta._stacked && {\n        keys: getSortedDatasetIndices(chart, true),\n        values: null\n    };\nclass DatasetController {\n static defaults = {};\n static datasetElementType = null;\n static dataElementType = null;\n constructor(chart, datasetIndex){\n        this.chart = chart;\n        this._ctx = chart.ctx;\n        this.index = datasetIndex;\n        this._cachedDataOpts = {};\n        this._cachedMeta = this.getMeta();\n        this._type = this._cachedMeta.type;\n        this.options = undefined;\n         this._parsing = false;\n        this._data = undefined;\n        this._objectData = undefined;\n        this._sharedOptions = undefined;\n        this._drawStart = undefined;\n        this._drawCount = undefined;\n        this.enableOptionSharing = false;\n        this.supportsDecimation = false;\n        this.$context = undefined;\n        this._syncList = [];\n        this.datasetElementType = new.target.datasetElementType;\n        this.dataElementType = new.target.dataElementType;\n        this.initialize();\n    }\n    initialize() {\n        const meta = this._cachedMeta;\n        this.configure();\n        this.linkScales();\n        meta._stacked = isStacked(meta.vScale, meta);\n        this.addElements();\n        if (this.options.fill && !this.chart.isPluginEnabled('filler')) {\n            console.warn(\"Tried to use the 'fill' option without the 'Filler' plugin enabled. Please import and register the 'Filler' plugin and make sure it is not disabled in the options\");\n        }\n    }\n    updateIndex(datasetIndex) {\n        if (this.index !== datasetIndex) {\n            clearStacks(this._cachedMeta);\n        }\n        this.index = datasetIndex;\n    }\n    linkScales() {\n        const chart = this.chart;\n        const meta = this._cachedMeta;\n        const dataset = this.getDataset();\n        const chooseId = (axis, x, y, r)=>axis === 'x' ? x : axis === 'r' ? r : y;\n        const xid = meta.xAxisID = valueOrDefault(dataset.xAxisID, getFirstScaleId(chart, 'x'));\n        const yid = meta.yAxisID = valueOrDefault(dataset.yAxisID, getFirstScaleId(chart, 'y'));\n        const rid = meta.rAxisID = valueOrDefault(dataset.rAxisID, getFirstScaleId(chart, 'r'));\n        const indexAxis = meta.indexAxis;\n        const iid = meta.iAxisID = chooseId(indexAxis, xid, yid, rid);\n        const vid = meta.vAxisID = chooseId(indexAxis, yid, xid, rid);\n        meta.xScale = this.getScaleForId(xid);\n        meta.yScale = this.getScaleForId(yid);\n        meta.rScale = this.getScaleForId(rid);\n        meta.iScale = this.getScaleForId(iid);\n        meta.vScale = this.getScaleForId(vid);\n    }\n    getDataset() {\n        return this.chart.data.datasets[this.index];\n    }\n    getMeta() {\n        return this.chart.getDatasetMeta(this.index);\n    }\n getScaleForId(scaleID) {\n        return this.chart.scales[scaleID];\n    }\n _getOtherScale(scale) {\n        const meta = this._cachedMeta;\n        return scale === meta.iScale ? meta.vScale : meta.iScale;\n    }\n    reset() {\n        this._update('reset');\n    }\n _destroy() {\n        const meta = this._cachedMeta;\n        if (this._data) {\n            unlistenArrayEvents(this._data, this);\n        }\n        if (meta._stacked) {\n            clearStacks(meta);\n        }\n    }\n _dataCheck() {\n        const dataset = this.getDataset();\n        const data = dataset.data || (dataset.data = []);\n        const _data = this._data;\n        if (isObject(data)) {\n            this._data = convertObjectDataToArray(data);\n        } else if (_data !== data) {\n            if (_data) {\n                unlistenArrayEvents(_data, this);\n                const meta = this._cachedMeta;\n                clearStacks(meta);\n                meta._parsed = [];\n            }\n            if (data && Object.isExtensible(data)) {\n                listenArrayEvents(data, this);\n            }\n            this._syncList = [];\n            this._data = data;\n        }\n    }\n    addElements() {\n        const meta = this._cachedMeta;\n        this._dataCheck();\n        if (this.datasetElementType) {\n            meta.dataset = new this.datasetElementType();\n        }\n    }\n    buildOrUpdateElements(resetNewElements) {\n        const meta = this._cachedMeta;\n        const dataset = this.getDataset();\n        let stackChanged = false;\n        this._dataCheck();\n        const oldStacked = meta._stacked;\n        meta._stacked = isStacked(meta.vScale, meta);\n        if (meta.stack !== dataset.stack) {\n            stackChanged = true;\n            clearStacks(meta);\n            meta.stack = dataset.stack;\n        }\n        this._resyncElements(resetNewElements);\n        if (stackChanged || oldStacked !== meta._stacked) {\n            updateStacks(this, meta._parsed);\n        }\n    }\n configure() {\n        const config = this.chart.config;\n        const scopeKeys = config.datasetScopeKeys(this._type);\n        const scopes = config.getOptionScopes(this.getDataset(), scopeKeys, true);\n        this.options = config.createResolver(scopes, this.getContext());\n        this._parsing = this.options.parsing;\n        this._cachedDataOpts = {};\n    }\n parse(start, count) {\n        const { _cachedMeta: meta , _data: data  } = this;\n        const { iScale , _stacked  } = meta;\n        const iAxis = iScale.axis;\n        let sorted = start === 0 && count === data.length ? true : meta._sorted;\n        let prev = start > 0 && meta._parsed[start - 1];\n        let i, cur, parsed;\n        if (this._parsing === false) {\n            meta._parsed = data;\n            meta._sorted = true;\n            parsed = data;\n        } else {\n            if (isArray(data[start])) {\n                parsed = this.parseArrayData(meta, data, start, count);\n            } else if (isObject(data[start])) {\n                parsed = this.parseObjectData(meta, data, start, count);\n            } else {\n                parsed = this.parsePrimitiveData(meta, data, start, count);\n            }\n            const isNotInOrderComparedToPrev = ()=>cur[iAxis] === null || prev && cur[iAxis] < prev[iAxis];\n            for(i = 0; i < count; ++i){\n                meta._parsed[i + start] = cur = parsed[i];\n                if (sorted) {\n                    if (isNotInOrderComparedToPrev()) {\n                        sorted = false;\n                    }\n                    prev = cur;\n                }\n            }\n            meta._sorted = sorted;\n        }\n        if (_stacked) {\n            updateStacks(this, parsed);\n        }\n    }\n parsePrimitiveData(meta, data, start, count) {\n        const { iScale , vScale  } = meta;\n        const iAxis = iScale.axis;\n        const vAxis = vScale.axis;\n        const labels = iScale.getLabels();\n        const singleScale = iScale === vScale;\n        const parsed = new Array(count);\n        let i, ilen, index;\n        for(i = 0, ilen = count; i < ilen; ++i){\n            index = i + start;\n            parsed[i] = {\n                [iAxis]: singleScale || iScale.parse(labels[index], index),\n                [vAxis]: vScale.parse(data[index], index)\n            };\n        }\n        return parsed;\n    }\n parseArrayData(meta, data, start, count) {\n        const { xScale , yScale  } = meta;\n        const parsed = new Array(count);\n        let i, ilen, index, item;\n        for(i = 0, ilen = count; i < ilen; ++i){\n            index = i + start;\n            item = data[index];\n            parsed[i] = {\n                x: xScale.parse(item[0], index),\n                y: yScale.parse(item[1], index)\n            };\n        }\n        return parsed;\n    }\n parseObjectData(meta, data, start, count) {\n        const { xScale , yScale  } = meta;\n        const { xAxisKey ='x' , yAxisKey ='y'  } = this._parsing;\n        const parsed = new Array(count);\n        let i, ilen, index, item;\n        for(i = 0, ilen = count; i < ilen; ++i){\n            index = i + start;\n            item = data[index];\n            parsed[i] = {\n                x: xScale.parse(resolveObjectKey(item, xAxisKey), index),\n                y: yScale.parse(resolveObjectKey(item, yAxisKey), index)\n            };\n        }\n        return parsed;\n    }\n getParsed(index) {\n        return this._cachedMeta._parsed[index];\n    }\n getDataElement(index) {\n        return this._cachedMeta.data[index];\n    }\n applyStack(scale, parsed, mode) {\n        const chart = this.chart;\n        const meta = this._cachedMeta;\n        const value = parsed[scale.axis];\n        const stack = {\n            keys: getSortedDatasetIndices(chart, true),\n            values: parsed._stacks[scale.axis]._visualValues\n        };\n        return applyStack(stack, value, meta.index, {\n            mode\n        });\n    }\n updateRangeFromParsed(range, scale, parsed, stack) {\n        const parsedValue = parsed[scale.axis];\n        let value = parsedValue === null ? NaN : parsedValue;\n        const values = stack && parsed._stacks[scale.axis];\n        if (stack && values) {\n            stack.values = values;\n            value = applyStack(stack, parsedValue, this._cachedMeta.index);\n        }\n        range.min = Math.min(range.min, value);\n        range.max = Math.max(range.max, value);\n    }\n getMinMax(scale, canStack) {\n        const meta = this._cachedMeta;\n        const _parsed = meta._parsed;\n        const sorted = meta._sorted && scale === meta.iScale;\n        const ilen = _parsed.length;\n        const otherScale = this._getOtherScale(scale);\n        const stack = createStack(canStack, meta, this.chart);\n        const range = {\n            min: Number.POSITIVE_INFINITY,\n            max: Number.NEGATIVE_INFINITY\n        };\n        const { min: otherMin , max: otherMax  } = getUserBounds(otherScale);\n        let i, parsed;\n        function _skip() {\n            parsed = _parsed[i];\n            const otherValue = parsed[otherScale.axis];\n            return !isNumberFinite(parsed[scale.axis]) || otherMin > otherValue || otherMax < otherValue;\n        }\n        for(i = 0; i < ilen; ++i){\n            if (_skip()) {\n                continue;\n            }\n            this.updateRangeFromParsed(range, scale, parsed, stack);\n            if (sorted) {\n                break;\n            }\n        }\n        if (sorted) {\n            for(i = ilen - 1; i >= 0; --i){\n                if (_skip()) {\n                    continue;\n                }\n                this.updateRangeFromParsed(range, scale, parsed, stack);\n                break;\n            }\n        }\n        return range;\n    }\n    getAllParsedValues(scale) {\n        const parsed = this._cachedMeta._parsed;\n        const values = [];\n        let i, ilen, value;\n        for(i = 0, ilen = parsed.length; i < ilen; ++i){\n            value = parsed[i][scale.axis];\n            if (isNumberFinite(value)) {\n                values.push(value);\n            }\n        }\n        return values;\n    }\n getMaxOverflow() {\n        return false;\n    }\n getLabelAndValue(index) {\n        const meta = this._cachedMeta;\n        const iScale = meta.iScale;\n        const vScale = meta.vScale;\n        const parsed = this.getParsed(index);\n        return {\n            label: iScale ? '' + iScale.getLabelForValue(parsed[iScale.axis]) : '',\n            value: vScale ? '' + vScale.getLabelForValue(parsed[vScale.axis]) : ''\n        };\n    }\n _update(mode) {\n        const meta = this._cachedMeta;\n        this.update(mode || 'default');\n        meta._clip = toClip(valueOrDefault(this.options.clip, defaultClip(meta.xScale, meta.yScale, this.getMaxOverflow())));\n    }\n update(mode) {}\n    draw() {\n        const ctx = this._ctx;\n        const chart = this.chart;\n        const meta = this._cachedMeta;\n        const elements = meta.data || [];\n        const area = chart.chartArea;\n        const active = [];\n        const start = this._drawStart || 0;\n        const count = this._drawCount || elements.length - start;\n        const drawActiveElementsOnTop = this.options.drawActiveElementsOnTop;\n        let i;\n        if (meta.dataset) {\n            meta.dataset.draw(ctx, area, start, count);\n        }\n        for(i = start; i < start + count; ++i){\n            const element = elements[i];\n            if (element.hidden) {\n                continue;\n            }\n            if (element.active && drawActiveElementsOnTop) {\n                active.push(element);\n            } else {\n                element.draw(ctx, area);\n            }\n        }\n        for(i = 0; i < active.length; ++i){\n            active[i].draw(ctx, area);\n        }\n    }\n getStyle(index, active) {\n        const mode = active ? 'active' : 'default';\n        return index === undefined && this._cachedMeta.dataset ? this.resolveDatasetElementOptions(mode) : this.resolveDataElementOptions(index || 0, mode);\n    }\n getContext(index, active, mode) {\n        const dataset = this.getDataset();\n        let context;\n        if (index >= 0 && index < this._cachedMeta.data.length) {\n            const element = this._cachedMeta.data[index];\n            context = element.$context || (element.$context = createDataContext(this.getContext(), index, element));\n            context.parsed = this.getParsed(index);\n            context.raw = dataset.data[index];\n            context.index = context.dataIndex = index;\n        } else {\n            context = this.$context || (this.$context = createDatasetContext(this.chart.getContext(), this.index));\n            context.dataset = dataset;\n            context.index = context.datasetIndex = this.index;\n        }\n        context.active = !!active;\n        context.mode = mode;\n        return context;\n    }\n resolveDatasetElementOptions(mode) {\n        return this._resolveElementOptions(this.datasetElementType.id, mode);\n    }\n resolveDataElementOptions(index, mode) {\n        return this._resolveElementOptions(this.dataElementType.id, mode, index);\n    }\n _resolveElementOptions(elementType, mode = 'default', index) {\n        const active = mode === 'active';\n        const cache = this._cachedDataOpts;\n        const cacheKey = elementType + '-' + mode;\n        const cached = cache[cacheKey];\n        const sharing = this.enableOptionSharing && defined(index);\n        if (cached) {\n            return cloneIfNotShared(cached, sharing);\n        }\n        const config = this.chart.config;\n        const scopeKeys = config.datasetElementScopeKeys(this._type, elementType);\n        const prefixes = active ? [\n            `${elementType}Hover`,\n            'hover',\n            elementType,\n            ''\n        ] : [\n            elementType,\n            ''\n        ];\n        const scopes = config.getOptionScopes(this.getDataset(), scopeKeys);\n        const names = Object.keys(defaults.elements[elementType]);\n        const context = ()=>this.getContext(index, active, mode);\n        const values = config.resolveNamedOptions(scopes, names, context, prefixes);\n        if (values.$shared) {\n            values.$shared = sharing;\n            cache[cacheKey] = Object.freeze(cloneIfNotShared(values, sharing));\n        }\n        return values;\n    }\n _resolveAnimations(index, transition, active) {\n        const chart = this.chart;\n        const cache = this._cachedDataOpts;\n        const cacheKey = `animation-${transition}`;\n        const cached = cache[cacheKey];\n        if (cached) {\n            return cached;\n        }\n        let options;\n        if (chart.options.animation !== false) {\n            const config = this.chart.config;\n            const scopeKeys = config.datasetAnimationScopeKeys(this._type, transition);\n            const scopes = config.getOptionScopes(this.getDataset(), scopeKeys);\n            options = config.createResolver(scopes, this.getContext(index, active, transition));\n        }\n        const animations = new Animations(chart, options && options.animations);\n        if (options && options._cacheable) {\n            cache[cacheKey] = Object.freeze(animations);\n        }\n        return animations;\n    }\n getSharedOptions(options) {\n        if (!options.$shared) {\n            return;\n        }\n        return this._sharedOptions || (this._sharedOptions = Object.assign({}, options));\n    }\n includeOptions(mode, sharedOptions) {\n        return !sharedOptions || isDirectUpdateMode(mode) || this.chart._animationsDisabled;\n    }\n _getSharedOptions(start, mode) {\n        const firstOpts = this.resolveDataElementOptions(start, mode);\n        const previouslySharedOptions = this._sharedOptions;\n        const sharedOptions = this.getSharedOptions(firstOpts);\n        const includeOptions = this.includeOptions(mode, sharedOptions) || sharedOptions !== previouslySharedOptions;\n        this.updateSharedOptions(sharedOptions, mode, firstOpts);\n        return {\n            sharedOptions,\n            includeOptions\n        };\n    }\n updateElement(element, index, properties, mode) {\n        if (isDirectUpdateMode(mode)) {\n            Object.assign(element, properties);\n        } else {\n            this._resolveAnimations(index, mode).update(element, properties);\n        }\n    }\n updateSharedOptions(sharedOptions, mode, newOptions) {\n        if (sharedOptions && !isDirectUpdateMode(mode)) {\n            this._resolveAnimations(undefined, mode).update(sharedOptions, newOptions);\n        }\n    }\n _setStyle(element, index, mode, active) {\n        element.active = active;\n        const options = this.getStyle(index, active);\n        this._resolveAnimations(index, mode, active).update(element, {\n            options: !active && this.getSharedOptions(options) || options\n        });\n    }\n    removeHoverStyle(element, datasetIndex, index) {\n        this._setStyle(element, index, 'active', false);\n    }\n    setHoverStyle(element, datasetIndex, index) {\n        this._setStyle(element, index, 'active', true);\n    }\n _removeDatasetHoverStyle() {\n        const element = this._cachedMeta.dataset;\n        if (element) {\n            this._setStyle(element, undefined, 'active', false);\n        }\n    }\n _setDatasetHoverStyle() {\n        const element = this._cachedMeta.dataset;\n        if (element) {\n            this._setStyle(element, undefined, 'active', true);\n        }\n    }\n _resyncElements(resetNewElements) {\n        const data = this._data;\n        const elements = this._cachedMeta.data;\n        for (const [method, arg1, arg2] of this._syncList){\n            this[method](arg1, arg2);\n        }\n        this._syncList = [];\n        const numMeta = elements.length;\n        const numData = data.length;\n        const count = Math.min(numData, numMeta);\n        if (count) {\n            this.parse(0, count);\n        }\n        if (numData > numMeta) {\n            this._insertElements(numMeta, numData - numMeta, resetNewElements);\n        } else if (numData < numMeta) {\n            this._removeElements(numData, numMeta - numData);\n        }\n    }\n _insertElements(start, count, resetNewElements = true) {\n        const meta = this._cachedMeta;\n        const data = meta.data;\n        const end = start + count;\n        let i;\n        const move = (arr)=>{\n            arr.length += count;\n            for(i = arr.length - 1; i >= end; i--){\n                arr[i] = arr[i - count];\n            }\n        };\n        move(data);\n        for(i = start; i < end; ++i){\n            data[i] = new this.dataElementType();\n        }\n        if (this._parsing) {\n            move(meta._parsed);\n        }\n        this.parse(start, count);\n        if (resetNewElements) {\n            this.updateElements(data, start, count, 'reset');\n        }\n    }\n    updateElements(element, start, count, mode) {}\n _removeElements(start, count) {\n        const meta = this._cachedMeta;\n        if (this._parsing) {\n            const removed = meta._parsed.splice(start, count);\n            if (meta._stacked) {\n                clearStacks(meta, removed);\n            }\n        }\n        meta.data.splice(start, count);\n    }\n _sync(args) {\n        if (this._parsing) {\n            this._syncList.push(args);\n        } else {\n            const [method, arg1, arg2] = args;\n            this[method](arg1, arg2);\n        }\n        this.chart._dataChanges.push([\n            this.index,\n            ...args\n        ]);\n    }\n    _onDataPush() {\n        const count = arguments.length;\n        this._sync([\n            '_insertElements',\n            this.getDataset().data.length - count,\n            count\n        ]);\n    }\n    _onDataPop() {\n        this._sync([\n            '_removeElements',\n            this._cachedMeta.data.length - 1,\n            1\n        ]);\n    }\n    _onDataShift() {\n        this._sync([\n            '_removeElements',\n            0,\n            1\n        ]);\n    }\n    _onDataSplice(start, count) {\n        if (count) {\n            this._sync([\n                '_removeElements',\n                start,\n                count\n            ]);\n        }\n        const newCount = arguments.length - 2;\n        if (newCount) {\n            this._sync([\n                '_insertElements',\n                start,\n                newCount\n            ]);\n        }\n    }\n    _onDataUnshift() {\n        this._sync([\n            '_insertElements',\n            0,\n            arguments.length\n        ]);\n    }\n}\n\nfunction getAllScaleValues(scale, type) {\n    if (!scale._cache.$bar) {\n        const visibleMetas = scale.getMatchingVisibleMetas(type);\n        let values = [];\n        for(let i = 0, ilen = visibleMetas.length; i < ilen; i++){\n            values = values.concat(visibleMetas[i].controller.getAllParsedValues(scale));\n        }\n        scale._cache.$bar = _arrayUnique(values.sort((a, b)=>a - b));\n    }\n    return scale._cache.$bar;\n}\n function computeMinSampleSize(meta) {\n    const scale = meta.iScale;\n    const values = getAllScaleValues(scale, meta.type);\n    let min = scale._length;\n    let i, ilen, curr, prev;\n    const updateMinAndPrev = ()=>{\n        if (curr === 32767 || curr === -32768) {\n            return;\n        }\n        if (defined(prev)) {\n            min = Math.min(min, Math.abs(curr - prev) || min);\n        }\n        prev = curr;\n    };\n    for(i = 0, ilen = values.length; i < ilen; ++i){\n        curr = scale.getPixelForValue(values[i]);\n        updateMinAndPrev();\n    }\n    prev = undefined;\n    for(i = 0, ilen = scale.ticks.length; i < ilen; ++i){\n        curr = scale.getPixelForTick(i);\n        updateMinAndPrev();\n    }\n    return min;\n}\n function computeFitCategoryTraits(index, ruler, options, stackCount) {\n    const thickness = options.barThickness;\n    let size, ratio;\n    if (isNullOrUndef(thickness)) {\n        size = ruler.min * options.categoryPercentage;\n        ratio = options.barPercentage;\n    } else {\n        size = thickness * stackCount;\n        ratio = 1;\n    }\n    return {\n        chunk: size / stackCount,\n        ratio,\n        start: ruler.pixels[index] - size / 2\n    };\n}\n function computeFlexCategoryTraits(index, ruler, options, stackCount) {\n    const pixels = ruler.pixels;\n    const curr = pixels[index];\n    let prev = index > 0 ? pixels[index - 1] : null;\n    let next = index < pixels.length - 1 ? pixels[index + 1] : null;\n    const percent = options.categoryPercentage;\n    if (prev === null) {\n        prev = curr - (next === null ? ruler.end - ruler.start : next - curr);\n    }\n    if (next === null) {\n        next = curr + curr - prev;\n    }\n    const start = curr - (curr - Math.min(prev, next)) / 2 * percent;\n    const size = Math.abs(next - prev) / 2 * percent;\n    return {\n        chunk: size / stackCount,\n        ratio: options.barPercentage,\n        start\n    };\n}\nfunction parseFloatBar(entry, item, vScale, i) {\n    const startValue = vScale.parse(entry[0], i);\n    const endValue = vScale.parse(entry[1], i);\n    const min = Math.min(startValue, endValue);\n    const max = Math.max(startValue, endValue);\n    let barStart = min;\n    let barEnd = max;\n    if (Math.abs(min) > Math.abs(max)) {\n        barStart = max;\n        barEnd = min;\n    }\n    item[vScale.axis] = barEnd;\n    item._custom = {\n        barStart,\n        barEnd,\n        start: startValue,\n        end: endValue,\n        min,\n        max\n    };\n}\nfunction parseValue(entry, item, vScale, i) {\n    if (isArray(entry)) {\n        parseFloatBar(entry, item, vScale, i);\n    } else {\n        item[vScale.axis] = vScale.parse(entry, i);\n    }\n    return item;\n}\nfunction parseArrayOrPrimitive(meta, data, start, count) {\n    const iScale = meta.iScale;\n    const vScale = meta.vScale;\n    const labels = iScale.getLabels();\n    const singleScale = iScale === vScale;\n    const parsed = [];\n    let i, ilen, item, entry;\n    for(i = start, ilen = start + count; i < ilen; ++i){\n        entry = data[i];\n        item = {};\n        item[iScale.axis] = singleScale || iScale.parse(labels[i], i);\n        parsed.push(parseValue(entry, item, vScale, i));\n    }\n    return parsed;\n}\nfunction isFloatBar(custom) {\n    return custom && custom.barStart !== undefined && custom.barEnd !== undefined;\n}\nfunction barSign(size, vScale, actualBase) {\n    if (size !== 0) {\n        return sign(size);\n    }\n    return (vScale.isHorizontal() ? 1 : -1) * (vScale.min >= actualBase ? 1 : -1);\n}\nfunction borderProps(properties) {\n    let reverse, start, end, top, bottom;\n    if (properties.horizontal) {\n        reverse = properties.base > properties.x;\n        start = 'left';\n        end = 'right';\n    } else {\n        reverse = properties.base < properties.y;\n        start = 'bottom';\n        end = 'top';\n    }\n    if (reverse) {\n        top = 'end';\n        bottom = 'start';\n    } else {\n        top = 'start';\n        bottom = 'end';\n    }\n    return {\n        start,\n        end,\n        reverse,\n        top,\n        bottom\n    };\n}\nfunction setBorderSkipped(properties, options, stack, index) {\n    let edge = options.borderSkipped;\n    const res = {};\n    if (!edge) {\n        properties.borderSkipped = res;\n        return;\n    }\n    if (edge === true) {\n        properties.borderSkipped = {\n            top: true,\n            right: true,\n            bottom: true,\n            left: true\n        };\n        return;\n    }\n    const { start , end , reverse , top , bottom  } = borderProps(properties);\n    if (edge === 'middle' && stack) {\n        properties.enableBorderRadius = true;\n        if ((stack._top || 0) === index) {\n            edge = top;\n        } else if ((stack._bottom || 0) === index) {\n            edge = bottom;\n        } else {\n            res[parseEdge(bottom, start, end, reverse)] = true;\n            edge = top;\n        }\n    }\n    res[parseEdge(edge, start, end, reverse)] = true;\n    properties.borderSkipped = res;\n}\nfunction parseEdge(edge, a, b, reverse) {\n    if (reverse) {\n        edge = swap(edge, a, b);\n        edge = startEnd(edge, b, a);\n    } else {\n        edge = startEnd(edge, a, b);\n    }\n    return edge;\n}\nfunction swap(orig, v1, v2) {\n    return orig === v1 ? v2 : orig === v2 ? v1 : orig;\n}\nfunction startEnd(v, start, end) {\n    return v === 'start' ? start : v === 'end' ? end : v;\n}\nfunction setInflateAmount(properties, { inflateAmount  }, ratio) {\n    properties.inflateAmount = inflateAmount === 'auto' ? ratio === 1 ? 0.33 : 0 : inflateAmount;\n}\nclass BarController extends DatasetController {\n    static id = 'bar';\n static defaults = {\n        datasetElementType: false,\n        dataElementType: 'bar',\n        categoryPercentage: 0.8,\n        barPercentage: 0.9,\n        grouped: true,\n        animations: {\n            numbers: {\n                type: 'number',\n                properties: [\n                    'x',\n                    'y',\n                    'base',\n                    'width',\n                    'height'\n                ]\n            }\n        }\n    };\n static overrides = {\n        scales: {\n            _index_: {\n                type: 'category',\n                offset: true,\n                grid: {\n                    offset: true\n                }\n            },\n            _value_: {\n                type: 'linear',\n                beginAtZero: true\n            }\n        }\n    };\n parsePrimitiveData(meta, data, start, count) {\n        return parseArrayOrPrimitive(meta, data, start, count);\n    }\n parseArrayData(meta, data, start, count) {\n        return parseArrayOrPrimitive(meta, data, start, count);\n    }\n parseObjectData(meta, data, start, count) {\n        const { iScale , vScale  } = meta;\n        const { xAxisKey ='x' , yAxisKey ='y'  } = this._parsing;\n        const iAxisKey = iScale.axis === 'x' ? xAxisKey : yAxisKey;\n        const vAxisKey = vScale.axis === 'x' ? xAxisKey : yAxisKey;\n        const parsed = [];\n        let i, ilen, item, obj;\n        for(i = start, ilen = start + count; i < ilen; ++i){\n            obj = data[i];\n            item = {};\n            item[iScale.axis] = iScale.parse(resolveObjectKey(obj, iAxisKey), i);\n            parsed.push(parseValue(resolveObjectKey(obj, vAxisKey), item, vScale, i));\n        }\n        return parsed;\n    }\n updateRangeFromParsed(range, scale, parsed, stack) {\n        super.updateRangeFromParsed(range, scale, parsed, stack);\n        const custom = parsed._custom;\n        if (custom && scale === this._cachedMeta.vScale) {\n            range.min = Math.min(range.min, custom.min);\n            range.max = Math.max(range.max, custom.max);\n        }\n    }\n getMaxOverflow() {\n        return 0;\n    }\n getLabelAndValue(index) {\n        const meta = this._cachedMeta;\n        const { iScale , vScale  } = meta;\n        const parsed = this.getParsed(index);\n        const custom = parsed._custom;\n        const value = isFloatBar(custom) ? '[' + custom.start + ', ' + custom.end + ']' : '' + vScale.getLabelForValue(parsed[vScale.axis]);\n        return {\n            label: '' + iScale.getLabelForValue(parsed[iScale.axis]),\n            value\n        };\n    }\n    initialize() {\n        this.enableOptionSharing = true;\n        super.initialize();\n        const meta = this._cachedMeta;\n        meta.stack = this.getDataset().stack;\n    }\n    update(mode) {\n        const meta = this._cachedMeta;\n        this.updateElements(meta.data, 0, meta.data.length, mode);\n    }\n    updateElements(bars, start, count, mode) {\n        const reset = mode === 'reset';\n        const { index , _cachedMeta: { vScale  }  } = this;\n        const base = vScale.getBasePixel();\n        const horizontal = vScale.isHorizontal();\n        const ruler = this._getRuler();\n        const { sharedOptions , includeOptions  } = this._getSharedOptions(start, mode);\n        for(let i = start; i < start + count; i++){\n            const parsed = this.getParsed(i);\n            const vpixels = reset || isNullOrUndef(parsed[vScale.axis]) ? {\n                base,\n                head: base\n            } : this._calculateBarValuePixels(i);\n            const ipixels = this._calculateBarIndexPixels(i, ruler);\n            const stack = (parsed._stacks || {})[vScale.axis];\n            const properties = {\n                horizontal,\n                base: vpixels.base,\n                enableBorderRadius: !stack || isFloatBar(parsed._custom) || index === stack._top || index === stack._bottom,\n                x: horizontal ? vpixels.head : ipixels.center,\n                y: horizontal ? ipixels.center : vpixels.head,\n                height: horizontal ? ipixels.size : Math.abs(vpixels.size),\n                width: horizontal ? Math.abs(vpixels.size) : ipixels.size\n            };\n            if (includeOptions) {\n                properties.options = sharedOptions || this.resolveDataElementOptions(i, bars[i].active ? 'active' : mode);\n            }\n            const options = properties.options || bars[i].options;\n            setBorderSkipped(properties, options, stack, index);\n            setInflateAmount(properties, options, ruler.ratio);\n            this.updateElement(bars[i], i, properties, mode);\n        }\n    }\n _getStacks(last, dataIndex) {\n        const { iScale  } = this._cachedMeta;\n        const metasets = iScale.getMatchingVisibleMetas(this._type).filter((meta)=>meta.controller.options.grouped);\n        const stacked = iScale.options.stacked;\n        const stacks = [];\n        const skipNull = (meta)=>{\n            const parsed = meta.controller.getParsed(dataIndex);\n            const val = parsed && parsed[meta.vScale.axis];\n            if (isNullOrUndef(val) || isNaN(val)) {\n                return true;\n            }\n        };\n        for (const meta of metasets){\n            if (dataIndex !== undefined && skipNull(meta)) {\n                continue;\n            }\n            if (stacked === false || stacks.indexOf(meta.stack) === -1 || stacked === undefined && meta.stack === undefined) {\n                stacks.push(meta.stack);\n            }\n            if (meta.index === last) {\n                break;\n            }\n        }\n        if (!stacks.length) {\n            stacks.push(undefined);\n        }\n        return stacks;\n    }\n _getStackCount(index) {\n        return this._getStacks(undefined, index).length;\n    }\n _getStackIndex(datasetIndex, name, dataIndex) {\n        const stacks = this._getStacks(datasetIndex, dataIndex);\n        const index = name !== undefined ? stacks.indexOf(name) : -1;\n        return index === -1 ? stacks.length - 1 : index;\n    }\n _getRuler() {\n        const opts = this.options;\n        const meta = this._cachedMeta;\n        const iScale = meta.iScale;\n        const pixels = [];\n        let i, ilen;\n        for(i = 0, ilen = meta.data.length; i < ilen; ++i){\n            pixels.push(iScale.getPixelForValue(this.getParsed(i)[iScale.axis], i));\n        }\n        const barThickness = opts.barThickness;\n        const min = barThickness || computeMinSampleSize(meta);\n        return {\n            min,\n            pixels,\n            start: iScale._startPixel,\n            end: iScale._endPixel,\n            stackCount: this._getStackCount(),\n            scale: iScale,\n            grouped: opts.grouped,\n            ratio: barThickness ? 1 : opts.categoryPercentage * opts.barPercentage\n        };\n    }\n _calculateBarValuePixels(index) {\n        const { _cachedMeta: { vScale , _stacked , index: datasetIndex  } , options: { base: baseValue , minBarLength  }  } = this;\n        const actualBase = baseValue || 0;\n        const parsed = this.getParsed(index);\n        const custom = parsed._custom;\n        const floating = isFloatBar(custom);\n        let value = parsed[vScale.axis];\n        let start = 0;\n        let length = _stacked ? this.applyStack(vScale, parsed, _stacked) : value;\n        let head, size;\n        if (length !== value) {\n            start = length - value;\n            length = value;\n        }\n        if (floating) {\n            value = custom.barStart;\n            length = custom.barEnd - custom.barStart;\n            if (value !== 0 && sign(value) !== sign(custom.barEnd)) {\n                start = 0;\n            }\n            start += value;\n        }\n        const startValue = !isNullOrUndef(baseValue) && !floating ? baseValue : start;\n        let base = vScale.getPixelForValue(startValue);\n        if (this.chart.getDataVisibility(index)) {\n            head = vScale.getPixelForValue(start + length);\n        } else {\n            head = base;\n        }\n        size = head - base;\n        if (Math.abs(size) < minBarLength) {\n            size = barSign(size, vScale, actualBase) * minBarLength;\n            if (value === actualBase) {\n                base -= size / 2;\n            }\n            const startPixel = vScale.getPixelForDecimal(0);\n            const endPixel = vScale.getPixelForDecimal(1);\n            const min = Math.min(startPixel, endPixel);\n            const max = Math.max(startPixel, endPixel);\n            base = Math.max(Math.min(base, max), min);\n            head = base + size;\n            if (_stacked && !floating) {\n                parsed._stacks[vScale.axis]._visualValues[datasetIndex] = vScale.getValueForPixel(head) - vScale.getValueForPixel(base);\n            }\n        }\n        if (base === vScale.getPixelForValue(actualBase)) {\n            const halfGrid = sign(size) * vScale.getLineWidthForValue(actualBase) / 2;\n            base += halfGrid;\n            size -= halfGrid;\n        }\n        return {\n            size,\n            base,\n            head,\n            center: head + size / 2\n        };\n    }\n _calculateBarIndexPixels(index, ruler) {\n        const scale = ruler.scale;\n        const options = this.options;\n        const skipNull = options.skipNull;\n        const maxBarThickness = valueOrDefault(options.maxBarThickness, Infinity);\n        let center, size;\n        if (ruler.grouped) {\n            const stackCount = skipNull ? this._getStackCount(index) : ruler.stackCount;\n            const range = options.barThickness === 'flex' ? computeFlexCategoryTraits(index, ruler, options, stackCount) : computeFitCategoryTraits(index, ruler, options, stackCount);\n            const stackIndex = this._getStackIndex(this.index, this._cachedMeta.stack, skipNull ? index : undefined);\n            center = range.start + range.chunk * stackIndex + range.chunk / 2;\n            size = Math.min(maxBarThickness, range.chunk * range.ratio);\n        } else {\n            center = scale.getPixelForValue(this.getParsed(index)[scale.axis], index);\n            size = Math.min(maxBarThickness, ruler.min * ruler.ratio);\n        }\n        return {\n            base: center - size / 2,\n            head: center + size / 2,\n            center,\n            size\n        };\n    }\n    draw() {\n        const meta = this._cachedMeta;\n        const vScale = meta.vScale;\n        const rects = meta.data;\n        const ilen = rects.length;\n        let i = 0;\n        for(; i < ilen; ++i){\n            if (this.getParsed(i)[vScale.axis] !== null) {\n                rects[i].draw(this._ctx);\n            }\n        }\n    }\n}\n\nclass BubbleController extends DatasetController {\n    static id = 'bubble';\n static defaults = {\n        datasetElementType: false,\n        dataElementType: 'point',\n        animations: {\n            numbers: {\n                type: 'number',\n                properties: [\n                    'x',\n                    'y',\n                    'borderWidth',\n                    'radius'\n                ]\n            }\n        }\n    };\n static overrides = {\n        scales: {\n            x: {\n                type: 'linear'\n            },\n            y: {\n                type: 'linear'\n            }\n        }\n    };\n    initialize() {\n        this.enableOptionSharing = true;\n        super.initialize();\n    }\n parsePrimitiveData(meta, data, start, count) {\n        const parsed = super.parsePrimitiveData(meta, data, start, count);\n        for(let i = 0; i < parsed.length; i++){\n            parsed[i]._custom = this.resolveDataElementOptions(i + start).radius;\n        }\n        return parsed;\n    }\n parseArrayData(meta, data, start, count) {\n        const parsed = super.parseArrayData(meta, data, start, count);\n        for(let i = 0; i < parsed.length; i++){\n            const item = data[start + i];\n            parsed[i]._custom = valueOrDefault(item[2], this.resolveDataElementOptions(i + start).radius);\n        }\n        return parsed;\n    }\n parseObjectData(meta, data, start, count) {\n        const parsed = super.parseObjectData(meta, data, start, count);\n        for(let i = 0; i < parsed.length; i++){\n            const item = data[start + i];\n            parsed[i]._custom = valueOrDefault(item && item.r && +item.r, this.resolveDataElementOptions(i + start).radius);\n        }\n        return parsed;\n    }\n getMaxOverflow() {\n        const data = this._cachedMeta.data;\n        let max = 0;\n        for(let i = data.length - 1; i >= 0; --i){\n            max = Math.max(max, data[i].size(this.resolveDataElementOptions(i)) / 2);\n        }\n        return max > 0 && max;\n    }\n getLabelAndValue(index) {\n        const meta = this._cachedMeta;\n        const labels = this.chart.data.labels || [];\n        const { xScale , yScale  } = meta;\n        const parsed = this.getParsed(index);\n        const x = xScale.getLabelForValue(parsed.x);\n        const y = yScale.getLabelForValue(parsed.y);\n        const r = parsed._custom;\n        return {\n            label: labels[index] || '',\n            value: '(' + x + ', ' + y + (r ? ', ' + r : '') + ')'\n        };\n    }\n    update(mode) {\n        const points = this._cachedMeta.data;\n        this.updateElements(points, 0, points.length, mode);\n    }\n    updateElements(points, start, count, mode) {\n        const reset = mode === 'reset';\n        const { iScale , vScale  } = this._cachedMeta;\n        const { sharedOptions , includeOptions  } = this._getSharedOptions(start, mode);\n        const iAxis = iScale.axis;\n        const vAxis = vScale.axis;\n        for(let i = start; i < start + count; i++){\n            const point = points[i];\n            const parsed = !reset && this.getParsed(i);\n            const properties = {};\n            const iPixel = properties[iAxis] = reset ? iScale.getPixelForDecimal(0.5) : iScale.getPixelForValue(parsed[iAxis]);\n            const vPixel = properties[vAxis] = reset ? vScale.getBasePixel() : vScale.getPixelForValue(parsed[vAxis]);\n            properties.skip = isNaN(iPixel) || isNaN(vPixel);\n            if (includeOptions) {\n                properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? 'active' : mode);\n                if (reset) {\n                    properties.options.radius = 0;\n                }\n            }\n            this.updateElement(point, i, properties, mode);\n        }\n    }\n resolveDataElementOptions(index, mode) {\n        const parsed = this.getParsed(index);\n        let values = super.resolveDataElementOptions(index, mode);\n        if (values.$shared) {\n            values = Object.assign({}, values, {\n                $shared: false\n            });\n        }\n        const radius = values.radius;\n        if (mode !== 'active') {\n            values.radius = 0;\n        }\n        values.radius += valueOrDefault(parsed && parsed._custom, radius);\n        return values;\n    }\n}\n\nfunction getRatioAndOffset(rotation, circumference, cutout) {\n    let ratioX = 1;\n    let ratioY = 1;\n    let offsetX = 0;\n    let offsetY = 0;\n    if (circumference < TAU) {\n        const startAngle = rotation;\n        const endAngle = startAngle + circumference;\n        const startX = Math.cos(startAngle);\n        const startY = Math.sin(startAngle);\n        const endX = Math.cos(endAngle);\n        const endY = Math.sin(endAngle);\n        const calcMax = (angle, a, b)=>_angleBetween(angle, startAngle, endAngle, true) ? 1 : Math.max(a, a * cutout, b, b * cutout);\n        const calcMin = (angle, a, b)=>_angleBetween(angle, startAngle, endAngle, true) ? -1 : Math.min(a, a * cutout, b, b * cutout);\n        const maxX = calcMax(0, startX, endX);\n        const maxY = calcMax(HALF_PI, startY, endY);\n        const minX = calcMin(PI, startX, endX);\n        const minY = calcMin(PI + HALF_PI, startY, endY);\n        ratioX = (maxX - minX) / 2;\n        ratioY = (maxY - minY) / 2;\n        offsetX = -(maxX + minX) / 2;\n        offsetY = -(maxY + minY) / 2;\n    }\n    return {\n        ratioX,\n        ratioY,\n        offsetX,\n        offsetY\n    };\n}\nclass DoughnutController extends DatasetController {\n    static id = 'doughnut';\n static defaults = {\n        datasetElementType: false,\n        dataElementType: 'arc',\n        animation: {\n            animateRotate: true,\n            animateScale: false\n        },\n        animations: {\n            numbers: {\n                type: 'number',\n                properties: [\n                    'circumference',\n                    'endAngle',\n                    'innerRadius',\n                    'outerRadius',\n                    'startAngle',\n                    'x',\n                    'y',\n                    'offset',\n                    'borderWidth',\n                    'spacing'\n                ]\n            }\n        },\n        cutout: '50%',\n        rotation: 0,\n        circumference: 360,\n        radius: '100%',\n        spacing: 0,\n        indexAxis: 'r'\n    };\n    static descriptors = {\n        _scriptable: (name)=>name !== 'spacing',\n        _indexable: (name)=>name !== 'spacing' && !name.startsWith('borderDash') && !name.startsWith('hoverBorderDash')\n    };\n static overrides = {\n        aspectRatio: 1,\n        plugins: {\n            legend: {\n                labels: {\n                    generateLabels (chart) {\n                        const data = chart.data;\n                        if (data.labels.length && data.datasets.length) {\n                            const { labels: { pointStyle , color  }  } = chart.legend.options;\n                            return data.labels.map((label, i)=>{\n                                const meta = chart.getDatasetMeta(0);\n                                const style = meta.controller.getStyle(i);\n                                return {\n                                    text: label,\n                                    fillStyle: style.backgroundColor,\n                                    strokeStyle: style.borderColor,\n                                    fontColor: color,\n                                    lineWidth: style.borderWidth,\n                                    pointStyle: pointStyle,\n                                    hidden: !chart.getDataVisibility(i),\n                                    index: i\n                                };\n                            });\n                        }\n                        return [];\n                    }\n                },\n                onClick (e, legendItem, legend) {\n                    legend.chart.toggleDataVisibility(legendItem.index);\n                    legend.chart.update();\n                }\n            }\n        }\n    };\n    constructor(chart, datasetIndex){\n        super(chart, datasetIndex);\n        this.enableOptionSharing = true;\n        this.innerRadius = undefined;\n        this.outerRadius = undefined;\n        this.offsetX = undefined;\n        this.offsetY = undefined;\n    }\n    linkScales() {}\n parse(start, count) {\n        const data = this.getDataset().data;\n        const meta = this._cachedMeta;\n        if (this._parsing === false) {\n            meta._parsed = data;\n        } else {\n            let getter = (i)=>+data[i];\n            if (isObject(data[start])) {\n                const { key ='value'  } = this._parsing;\n                getter = (i)=>+resolveObjectKey(data[i], key);\n            }\n            let i, ilen;\n            for(i = start, ilen = start + count; i < ilen; ++i){\n                meta._parsed[i] = getter(i);\n            }\n        }\n    }\n _getRotation() {\n        return toRadians(this.options.rotation - 90);\n    }\n _getCircumference() {\n        return toRadians(this.options.circumference);\n    }\n _getRotationExtents() {\n        let min = TAU;\n        let max = -TAU;\n        for(let i = 0; i < this.chart.data.datasets.length; ++i){\n            if (this.chart.isDatasetVisible(i) && this.chart.getDatasetMeta(i).type === this._type) {\n                const controller = this.chart.getDatasetMeta(i).controller;\n                const rotation = controller._getRotation();\n                const circumference = controller._getCircumference();\n                min = Math.min(min, rotation);\n                max = Math.max(max, rotation + circumference);\n            }\n        }\n        return {\n            rotation: min,\n            circumference: max - min\n        };\n    }\n update(mode) {\n        const chart = this.chart;\n        const { chartArea  } = chart;\n        const meta = this._cachedMeta;\n        const arcs = meta.data;\n        const spacing = this.getMaxBorderWidth() + this.getMaxOffset(arcs) + this.options.spacing;\n        const maxSize = Math.max((Math.min(chartArea.width, chartArea.height) - spacing) / 2, 0);\n        const cutout = Math.min(toPercentage(this.options.cutout, maxSize), 1);\n        const chartWeight = this._getRingWeight(this.index);\n        const { circumference , rotation  } = this._getRotationExtents();\n        const { ratioX , ratioY , offsetX , offsetY  } = getRatioAndOffset(rotation, circumference, cutout);\n        const maxWidth = (chartArea.width - spacing) / ratioX;\n        const maxHeight = (chartArea.height - spacing) / ratioY;\n        const maxRadius = Math.max(Math.min(maxWidth, maxHeight) / 2, 0);\n        const outerRadius = toDimension(this.options.radius, maxRadius);\n        const innerRadius = Math.max(outerRadius * cutout, 0);\n        const radiusLength = (outerRadius - innerRadius) / this._getVisibleDatasetWeightTotal();\n        this.offsetX = offsetX * outerRadius;\n        this.offsetY = offsetY * outerRadius;\n        meta.total = this.calculateTotal();\n        this.outerRadius = outerRadius - radiusLength * this._getRingWeightOffset(this.index);\n        this.innerRadius = Math.max(this.outerRadius - radiusLength * chartWeight, 0);\n        this.updateElements(arcs, 0, arcs.length, mode);\n    }\n _circumference(i, reset) {\n        const opts = this.options;\n        const meta = this._cachedMeta;\n        const circumference = this._getCircumference();\n        if (reset && opts.animation.animateRotate || !this.chart.getDataVisibility(i) || meta._parsed[i] === null || meta.data[i].hidden) {\n            return 0;\n        }\n        return this.calculateCircumference(meta._parsed[i] * circumference / TAU);\n    }\n    updateElements(arcs, start, count, mode) {\n        const reset = mode === 'reset';\n        const chart = this.chart;\n        const chartArea = chart.chartArea;\n        const opts = chart.options;\n        const animationOpts = opts.animation;\n        const centerX = (chartArea.left + chartArea.right) / 2;\n        const centerY = (chartArea.top + chartArea.bottom) / 2;\n        const animateScale = reset && animationOpts.animateScale;\n        const innerRadius = animateScale ? 0 : this.innerRadius;\n        const outerRadius = animateScale ? 0 : this.outerRadius;\n        const { sharedOptions , includeOptions  } = this._getSharedOptions(start, mode);\n        let startAngle = this._getRotation();\n        let i;\n        for(i = 0; i < start; ++i){\n            startAngle += this._circumference(i, reset);\n        }\n        for(i = start; i < start + count; ++i){\n            const circumference = this._circumference(i, reset);\n            const arc = arcs[i];\n            const properties = {\n                x: centerX + this.offsetX,\n                y: centerY + this.offsetY,\n                startAngle,\n                endAngle: startAngle + circumference,\n                circumference,\n                outerRadius,\n                innerRadius\n            };\n            if (includeOptions) {\n                properties.options = sharedOptions || this.resolveDataElementOptions(i, arc.active ? 'active' : mode);\n            }\n            startAngle += circumference;\n            this.updateElement(arc, i, properties, mode);\n        }\n    }\n    calculateTotal() {\n        const meta = this._cachedMeta;\n        const metaData = meta.data;\n        let total = 0;\n        let i;\n        for(i = 0; i < metaData.length; i++){\n            const value = meta._parsed[i];\n            if (value !== null && !isNaN(value) && this.chart.getDataVisibility(i) && !metaData[i].hidden) {\n                total += Math.abs(value);\n            }\n        }\n        return total;\n    }\n    calculateCircumference(value) {\n        const total = this._cachedMeta.total;\n        if (total > 0 && !isNaN(value)) {\n            return TAU * (Math.abs(value) / total);\n        }\n        return 0;\n    }\n    getLabelAndValue(index) {\n        const meta = this._cachedMeta;\n        const chart = this.chart;\n        const labels = chart.data.labels || [];\n        const value = formatNumber(meta._parsed[index], chart.options.locale);\n        return {\n            label: labels[index] || '',\n            value\n        };\n    }\n    getMaxBorderWidth(arcs) {\n        let max = 0;\n        const chart = this.chart;\n        let i, ilen, meta, controller, options;\n        if (!arcs) {\n            for(i = 0, ilen = chart.data.datasets.length; i < ilen; ++i){\n                if (chart.isDatasetVisible(i)) {\n                    meta = chart.getDatasetMeta(i);\n                    arcs = meta.data;\n                    controller = meta.controller;\n                    break;\n                }\n            }\n        }\n        if (!arcs) {\n            return 0;\n        }\n        for(i = 0, ilen = arcs.length; i < ilen; ++i){\n            options = controller.resolveDataElementOptions(i);\n            if (options.borderAlign !== 'inner') {\n                max = Math.max(max, options.borderWidth || 0, options.hoverBorderWidth || 0);\n            }\n        }\n        return max;\n    }\n    getMaxOffset(arcs) {\n        let max = 0;\n        for(let i = 0, ilen = arcs.length; i < ilen; ++i){\n            const options = this.resolveDataElementOptions(i);\n            max = Math.max(max, options.offset || 0, options.hoverOffset || 0);\n        }\n        return max;\n    }\n _getRingWeightOffset(datasetIndex) {\n        let ringWeightOffset = 0;\n        for(let i = 0; i < datasetIndex; ++i){\n            if (this.chart.isDatasetVisible(i)) {\n                ringWeightOffset += this._getRingWeight(i);\n            }\n        }\n        return ringWeightOffset;\n    }\n _getRingWeight(datasetIndex) {\n        return Math.max(valueOrDefault(this.chart.data.datasets[datasetIndex].weight, 1), 0);\n    }\n _getVisibleDatasetWeightTotal() {\n        return this._getRingWeightOffset(this.chart.data.datasets.length) || 1;\n    }\n}\n\nclass LineController extends DatasetController {\n    static id = 'line';\n static defaults = {\n        datasetElementType: 'line',\n        dataElementType: 'point',\n        showLine: true,\n        spanGaps: false\n    };\n static overrides = {\n        scales: {\n            _index_: {\n                type: 'category'\n            },\n            _value_: {\n                type: 'linear'\n            }\n        }\n    };\n    initialize() {\n        this.enableOptionSharing = true;\n        this.supportsDecimation = true;\n        super.initialize();\n    }\n    update(mode) {\n        const meta = this._cachedMeta;\n        const { dataset: line , data: points = [] , _dataset  } = meta;\n        const animationsDisabled = this.chart._animationsDisabled;\n        let { start , count  } = _getStartAndCountOfVisiblePoints(meta, points, animationsDisabled);\n        this._drawStart = start;\n        this._drawCount = count;\n        if (_scaleRangesChanged(meta)) {\n            start = 0;\n            count = points.length;\n        }\n        line._chart = this.chart;\n        line._datasetIndex = this.index;\n        line._decimated = !!_dataset._decimated;\n        line.points = points;\n        const options = this.resolveDatasetElementOptions(mode);\n        if (!this.options.showLine) {\n            options.borderWidth = 0;\n        }\n        options.segment = this.options.segment;\n        this.updateElement(line, undefined, {\n            animated: !animationsDisabled,\n            options\n        }, mode);\n        this.updateElements(points, start, count, mode);\n    }\n    updateElements(points, start, count, mode) {\n        const reset = mode === 'reset';\n        const { iScale , vScale , _stacked , _dataset  } = this._cachedMeta;\n        const { sharedOptions , includeOptions  } = this._getSharedOptions(start, mode);\n        const iAxis = iScale.axis;\n        const vAxis = vScale.axis;\n        const { spanGaps , segment  } = this.options;\n        const maxGapLength = isNumber(spanGaps) ? spanGaps : Number.POSITIVE_INFINITY;\n        const directUpdate = this.chart._animationsDisabled || reset || mode === 'none';\n        const end = start + count;\n        const pointsCount = points.length;\n        let prevParsed = start > 0 && this.getParsed(start - 1);\n        for(let i = 0; i < pointsCount; ++i){\n            const point = points[i];\n            const properties = directUpdate ? point : {};\n            if (i < start || i >= end) {\n                properties.skip = true;\n                continue;\n            }\n            const parsed = this.getParsed(i);\n            const nullData = isNullOrUndef(parsed[vAxis]);\n            const iPixel = properties[iAxis] = iScale.getPixelForValue(parsed[iAxis], i);\n            const vPixel = properties[vAxis] = reset || nullData ? vScale.getBasePixel() : vScale.getPixelForValue(_stacked ? this.applyStack(vScale, parsed, _stacked) : parsed[vAxis], i);\n            properties.skip = isNaN(iPixel) || isNaN(vPixel) || nullData;\n            properties.stop = i > 0 && Math.abs(parsed[iAxis] - prevParsed[iAxis]) > maxGapLength;\n            if (segment) {\n                properties.parsed = parsed;\n                properties.raw = _dataset.data[i];\n            }\n            if (includeOptions) {\n                properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? 'active' : mode);\n            }\n            if (!directUpdate) {\n                this.updateElement(point, i, properties, mode);\n            }\n            prevParsed = parsed;\n        }\n    }\n getMaxOverflow() {\n        const meta = this._cachedMeta;\n        const dataset = meta.dataset;\n        const border = dataset.options && dataset.options.borderWidth || 0;\n        const data = meta.data || [];\n        if (!data.length) {\n            return border;\n        }\n        const firstPoint = data[0].size(this.resolveDataElementOptions(0));\n        const lastPoint = data[data.length - 1].size(this.resolveDataElementOptions(data.length - 1));\n        return Math.max(border, firstPoint, lastPoint) / 2;\n    }\n    draw() {\n        const meta = this._cachedMeta;\n        meta.dataset.updateControlPoints(this.chart.chartArea, meta.iScale.axis);\n        super.draw();\n    }\n}\n\nclass PolarAreaController extends DatasetController {\n    static id = 'polarArea';\n static defaults = {\n        dataElementType: 'arc',\n        animation: {\n            animateRotate: true,\n            animateScale: true\n        },\n        animations: {\n            numbers: {\n                type: 'number',\n                properties: [\n                    'x',\n                    'y',\n                    'startAngle',\n                    'endAngle',\n                    'innerRadius',\n                    'outerRadius'\n                ]\n            }\n        },\n        indexAxis: 'r',\n        startAngle: 0\n    };\n static overrides = {\n        aspectRatio: 1,\n        plugins: {\n            legend: {\n                labels: {\n                    generateLabels (chart) {\n                        const data = chart.data;\n                        if (data.labels.length && data.datasets.length) {\n                            const { labels: { pointStyle , color  }  } = chart.legend.options;\n                            return data.labels.map((label, i)=>{\n                                const meta = chart.getDatasetMeta(0);\n                                const style = meta.controller.getStyle(i);\n                                return {\n                                    text: label,\n                                    fillStyle: style.backgroundColor,\n                                    strokeStyle: style.borderColor,\n                                    fontColor: color,\n                                    lineWidth: style.borderWidth,\n                                    pointStyle: pointStyle,\n                                    hidden: !chart.getDataVisibility(i),\n                                    index: i\n                                };\n                            });\n                        }\n                        return [];\n                    }\n                },\n                onClick (e, legendItem, legend) {\n                    legend.chart.toggleDataVisibility(legendItem.index);\n                    legend.chart.update();\n                }\n            }\n        },\n        scales: {\n            r: {\n                type: 'radialLinear',\n                angleLines: {\n                    display: false\n                },\n                beginAtZero: true,\n                grid: {\n                    circular: true\n                },\n                pointLabels: {\n                    display: false\n                },\n                startAngle: 0\n            }\n        }\n    };\n    constructor(chart, datasetIndex){\n        super(chart, datasetIndex);\n        this.innerRadius = undefined;\n        this.outerRadius = undefined;\n    }\n    getLabelAndValue(index) {\n        const meta = this._cachedMeta;\n        const chart = this.chart;\n        const labels = chart.data.labels || [];\n        const value = formatNumber(meta._parsed[index].r, chart.options.locale);\n        return {\n            label: labels[index] || '',\n            value\n        };\n    }\n    parseObjectData(meta, data, start, count) {\n        return _parseObjectDataRadialScale.bind(this)(meta, data, start, count);\n    }\n    update(mode) {\n        const arcs = this._cachedMeta.data;\n        this._updateRadius();\n        this.updateElements(arcs, 0, arcs.length, mode);\n    }\n getMinMax() {\n        const meta = this._cachedMeta;\n        const range = {\n            min: Number.POSITIVE_INFINITY,\n            max: Number.NEGATIVE_INFINITY\n        };\n        meta.data.forEach((element, index)=>{\n            const parsed = this.getParsed(index).r;\n            if (!isNaN(parsed) && this.chart.getDataVisibility(index)) {\n                if (parsed < range.min) {\n                    range.min = parsed;\n                }\n                if (parsed > range.max) {\n                    range.max = parsed;\n                }\n            }\n        });\n        return range;\n    }\n _updateRadius() {\n        const chart = this.chart;\n        const chartArea = chart.chartArea;\n        const opts = chart.options;\n        const minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top);\n        const outerRadius = Math.max(minSize / 2, 0);\n        const innerRadius = Math.max(opts.cutoutPercentage ? outerRadius / 100 * opts.cutoutPercentage : 1, 0);\n        const radiusLength = (outerRadius - innerRadius) / chart.getVisibleDatasetCount();\n        this.outerRadius = outerRadius - radiusLength * this.index;\n        this.innerRadius = this.outerRadius - radiusLength;\n    }\n    updateElements(arcs, start, count, mode) {\n        const reset = mode === 'reset';\n        const chart = this.chart;\n        const opts = chart.options;\n        const animationOpts = opts.animation;\n        const scale = this._cachedMeta.rScale;\n        const centerX = scale.xCenter;\n        const centerY = scale.yCenter;\n        const datasetStartAngle = scale.getIndexAngle(0) - 0.5 * PI;\n        let angle = datasetStartAngle;\n        let i;\n        const defaultAngle = 360 / this.countVisibleElements();\n        for(i = 0; i < start; ++i){\n            angle += this._computeAngle(i, mode, defaultAngle);\n        }\n        for(i = start; i < start + count; i++){\n            const arc = arcs[i];\n            let startAngle = angle;\n            let endAngle = angle + this._computeAngle(i, mode, defaultAngle);\n            let outerRadius = chart.getDataVisibility(i) ? scale.getDistanceFromCenterForValue(this.getParsed(i).r) : 0;\n            angle = endAngle;\n            if (reset) {\n                if (animationOpts.animateScale) {\n                    outerRadius = 0;\n                }\n                if (animationOpts.animateRotate) {\n                    startAngle = endAngle = datasetStartAngle;\n                }\n            }\n            const properties = {\n                x: centerX,\n                y: centerY,\n                innerRadius: 0,\n                outerRadius,\n                startAngle,\n                endAngle,\n                options: this.resolveDataElementOptions(i, arc.active ? 'active' : mode)\n            };\n            this.updateElement(arc, i, properties, mode);\n        }\n    }\n    countVisibleElements() {\n        const meta = this._cachedMeta;\n        let count = 0;\n        meta.data.forEach((element, index)=>{\n            if (!isNaN(this.getParsed(index).r) && this.chart.getDataVisibility(index)) {\n                count++;\n            }\n        });\n        return count;\n    }\n _computeAngle(index, mode, defaultAngle) {\n        return this.chart.getDataVisibility(index) ? toRadians(this.resolveDataElementOptions(index, mode).angle || defaultAngle) : 0;\n    }\n}\n\nclass PieController extends DoughnutController {\n    static id = 'pie';\n static defaults = {\n        cutout: 0,\n        rotation: 0,\n        circumference: 360,\n        radius: '100%'\n    };\n}\n\nclass RadarController extends DatasetController {\n    static id = 'radar';\n static defaults = {\n        datasetElementType: 'line',\n        dataElementType: 'point',\n        indexAxis: 'r',\n        showLine: true,\n        elements: {\n            line: {\n                fill: 'start'\n            }\n        }\n    };\n static overrides = {\n        aspectRatio: 1,\n        scales: {\n            r: {\n                type: 'radialLinear'\n            }\n        }\n    };\n getLabelAndValue(index) {\n        const vScale = this._cachedMeta.vScale;\n        const parsed = this.getParsed(index);\n        return {\n            label: vScale.getLabels()[index],\n            value: '' + vScale.getLabelForValue(parsed[vScale.axis])\n        };\n    }\n    parseObjectData(meta, data, start, count) {\n        return _parseObjectDataRadialScale.bind(this)(meta, data, start, count);\n    }\n    update(mode) {\n        const meta = this._cachedMeta;\n        const line = meta.dataset;\n        const points = meta.data || [];\n        const labels = meta.iScale.getLabels();\n        line.points = points;\n        if (mode !== 'resize') {\n            const options = this.resolveDatasetElementOptions(mode);\n            if (!this.options.showLine) {\n                options.borderWidth = 0;\n            }\n            const properties = {\n                _loop: true,\n                _fullLoop: labels.length === points.length,\n                options\n            };\n            this.updateElement(line, undefined, properties, mode);\n        }\n        this.updateElements(points, 0, points.length, mode);\n    }\n    updateElements(points, start, count, mode) {\n        const scale = this._cachedMeta.rScale;\n        const reset = mode === 'reset';\n        for(let i = start; i < start + count; i++){\n            const point = points[i];\n            const options = this.resolveDataElementOptions(i, point.active ? 'active' : mode);\n            const pointPosition = scale.getPointPositionForValue(i, this.getParsed(i).r);\n            const x = reset ? scale.xCenter : pointPosition.x;\n            const y = reset ? scale.yCenter : pointPosition.y;\n            const properties = {\n                x,\n                y,\n                angle: pointPosition.angle,\n                skip: isNaN(x) || isNaN(y),\n                options\n            };\n            this.updateElement(point, i, properties, mode);\n        }\n    }\n}\n\nclass ScatterController extends DatasetController {\n    static id = 'scatter';\n static defaults = {\n        datasetElementType: false,\n        dataElementType: 'point',\n        showLine: false,\n        fill: false\n    };\n static overrides = {\n        interaction: {\n            mode: 'point'\n        },\n        scales: {\n            x: {\n                type: 'linear'\n            },\n            y: {\n                type: 'linear'\n            }\n        }\n    };\n getLabelAndValue(index) {\n        const meta = this._cachedMeta;\n        const labels = this.chart.data.labels || [];\n        const { xScale , yScale  } = meta;\n        const parsed = this.getParsed(index);\n        const x = xScale.getLabelForValue(parsed.x);\n        const y = yScale.getLabelForValue(parsed.y);\n        return {\n            label: labels[index] || '',\n            value: '(' + x + ', ' + y + ')'\n        };\n    }\n    update(mode) {\n        const meta = this._cachedMeta;\n        const { data: points = []  } = meta;\n        const animationsDisabled = this.chart._animationsDisabled;\n        let { start , count  } = _getStartAndCountOfVisiblePoints(meta, points, animationsDisabled);\n        this._drawStart = start;\n        this._drawCount = count;\n        if (_scaleRangesChanged(meta)) {\n            start = 0;\n            count = points.length;\n        }\n        if (this.options.showLine) {\n            const { dataset: line , _dataset  } = meta;\n            line._chart = this.chart;\n            line._datasetIndex = this.index;\n            line._decimated = !!_dataset._decimated;\n            line.points = points;\n            const options = this.resolveDatasetElementOptions(mode);\n            options.segment = this.options.segment;\n            this.updateElement(line, undefined, {\n                animated: !animationsDisabled,\n                options\n            }, mode);\n        }\n        this.updateElements(points, start, count, mode);\n    }\n    addElements() {\n        const { showLine  } = this.options;\n        if (!this.datasetElementType && showLine) {\n            this.datasetElementType = this.chart.registry.getElement('line');\n        }\n        super.addElements();\n    }\n    updateElements(points, start, count, mode) {\n        const reset = mode === 'reset';\n        const { iScale , vScale , _stacked , _dataset  } = this._cachedMeta;\n        const firstOpts = this.resolveDataElementOptions(start, mode);\n        const sharedOptions = this.getSharedOptions(firstOpts);\n        const includeOptions = this.includeOptions(mode, sharedOptions);\n        const iAxis = iScale.axis;\n        const vAxis = vScale.axis;\n        const { spanGaps , segment  } = this.options;\n        const maxGapLength = isNumber(spanGaps) ? spanGaps : Number.POSITIVE_INFINITY;\n        const directUpdate = this.chart._animationsDisabled || reset || mode === 'none';\n        let prevParsed = start > 0 && this.getParsed(start - 1);\n        for(let i = start; i < start + count; ++i){\n            const point = points[i];\n            const parsed = this.getParsed(i);\n            const properties = directUpdate ? point : {};\n            const nullData = isNullOrUndef(parsed[vAxis]);\n            const iPixel = properties[iAxis] = iScale.getPixelForValue(parsed[iAxis], i);\n            const vPixel = properties[vAxis] = reset || nullData ? vScale.getBasePixel() : vScale.getPixelForValue(_stacked ? this.applyStack(vScale, parsed, _stacked) : parsed[vAxis], i);\n            properties.skip = isNaN(iPixel) || isNaN(vPixel) || nullData;\n            properties.stop = i > 0 && Math.abs(parsed[iAxis] - prevParsed[iAxis]) > maxGapLength;\n            if (segment) {\n                properties.parsed = parsed;\n                properties.raw = _dataset.data[i];\n            }\n            if (includeOptions) {\n                properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? 'active' : mode);\n            }\n            if (!directUpdate) {\n                this.updateElement(point, i, properties, mode);\n            }\n            prevParsed = parsed;\n        }\n        this.updateSharedOptions(sharedOptions, mode, firstOpts);\n    }\n getMaxOverflow() {\n        const meta = this._cachedMeta;\n        const data = meta.data || [];\n        if (!this.options.showLine) {\n            let max = 0;\n            for(let i = data.length - 1; i >= 0; --i){\n                max = Math.max(max, data[i].size(this.resolveDataElementOptions(i)) / 2);\n            }\n            return max > 0 && max;\n        }\n        const dataset = meta.dataset;\n        const border = dataset.options && dataset.options.borderWidth || 0;\n        if (!data.length) {\n            return border;\n        }\n        const firstPoint = data[0].size(this.resolveDataElementOptions(0));\n        const lastPoint = data[data.length - 1].size(this.resolveDataElementOptions(data.length - 1));\n        return Math.max(border, firstPoint, lastPoint) / 2;\n    }\n}\n\nvar controllers = /*#__PURE__*/Object.freeze({\n__proto__: null,\nBarController: BarController,\nBubbleController: BubbleController,\nDoughnutController: DoughnutController,\nLineController: LineController,\nPieController: PieController,\nPolarAreaController: PolarAreaController,\nRadarController: RadarController,\nScatterController: ScatterController\n});\n\n/**\n * @namespace Chart._adapters\n * @since 2.8.0\n * @private\n */ function abstract() {\n    throw new Error('This method is not implemented: Check that a complete date adapter is provided.');\n}\n/**\n * Date adapter (current used by the time scale)\n * @namespace Chart._adapters._date\n * @memberof Chart._adapters\n * @private\n */ class DateAdapterBase {\n    /**\n   * Override default date adapter methods.\n   * Accepts type parameter to define options type.\n   * @example\n   * Chart._adapters._date.override<{myAdapterOption: string}>({\n   *   init() {\n   *     console.log(this.options.myAdapterOption);\n   *   }\n   * })\n   */ static override(members) {\n        Object.assign(DateAdapterBase.prototype, members);\n    }\n    options;\n    constructor(options){\n        this.options = options || {};\n    }\n    // eslint-disable-next-line @typescript-eslint/no-empty-function\n    init() {}\n    formats() {\n        return abstract();\n    }\n    parse() {\n        return abstract();\n    }\n    format() {\n        return abstract();\n    }\n    add() {\n        return abstract();\n    }\n    diff() {\n        return abstract();\n    }\n    startOf() {\n        return abstract();\n    }\n    endOf() {\n        return abstract();\n    }\n}\nvar adapters = {\n    _date: DateAdapterBase\n};\n\nfunction binarySearch(metaset, axis, value, intersect) {\n    const { controller , data , _sorted  } = metaset;\n    const iScale = controller._cachedMeta.iScale;\n    if (iScale && axis === iScale.axis && axis !== 'r' && _sorted && data.length) {\n        const lookupMethod = iScale._reversePixels ? _rlookupByKey : _lookupByKey;\n        if (!intersect) {\n            return lookupMethod(data, axis, value);\n        } else if (controller._sharedOptions) {\n            const el = data[0];\n            const range = typeof el.getRange === 'function' && el.getRange(axis);\n            if (range) {\n                const start = lookupMethod(data, axis, value - range);\n                const end = lookupMethod(data, axis, value + range);\n                return {\n                    lo: start.lo,\n                    hi: end.hi\n                };\n            }\n        }\n    }\n    return {\n        lo: 0,\n        hi: data.length - 1\n    };\n}\n function evaluateInteractionItems(chart, axis, position, handler, intersect) {\n    const metasets = chart.getSortedVisibleDatasetMetas();\n    const value = position[axis];\n    for(let i = 0, ilen = metasets.length; i < ilen; ++i){\n        const { index , data  } = metasets[i];\n        const { lo , hi  } = binarySearch(metasets[i], axis, value, intersect);\n        for(let j = lo; j <= hi; ++j){\n            const element = data[j];\n            if (!element.skip) {\n                handler(element, index, j);\n            }\n        }\n    }\n}\n function getDistanceMetricForAxis(axis) {\n    const useX = axis.indexOf('x') !== -1;\n    const useY = axis.indexOf('y') !== -1;\n    return function(pt1, pt2) {\n        const deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0;\n        const deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0;\n        return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2));\n    };\n}\n function getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) {\n    const items = [];\n    if (!includeInvisible && !chart.isPointInArea(position)) {\n        return items;\n    }\n    const evaluationFunc = function(element, datasetIndex, index) {\n        if (!includeInvisible && !_isPointInArea(element, chart.chartArea, 0)) {\n            return;\n        }\n        if (element.inRange(position.x, position.y, useFinalPosition)) {\n            items.push({\n                element,\n                datasetIndex,\n                index\n            });\n        }\n    };\n    evaluateInteractionItems(chart, axis, position, evaluationFunc, true);\n    return items;\n}\n function getNearestRadialItems(chart, position, axis, useFinalPosition) {\n    let items = [];\n    function evaluationFunc(element, datasetIndex, index) {\n        const { startAngle , endAngle  } = element.getProps([\n            'startAngle',\n            'endAngle'\n        ], useFinalPosition);\n        const { angle  } = getAngleFromPoint(element, {\n            x: position.x,\n            y: position.y\n        });\n        if (_angleBetween(angle, startAngle, endAngle)) {\n            items.push({\n                element,\n                datasetIndex,\n                index\n            });\n        }\n    }\n    evaluateInteractionItems(chart, axis, position, evaluationFunc);\n    return items;\n}\n function getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition, includeInvisible) {\n    let items = [];\n    const distanceMetric = getDistanceMetricForAxis(axis);\n    let minDistance = Number.POSITIVE_INFINITY;\n    function evaluationFunc(element, datasetIndex, index) {\n        const inRange = element.inRange(position.x, position.y, useFinalPosition);\n        if (intersect && !inRange) {\n            return;\n        }\n        const center = element.getCenterPoint(useFinalPosition);\n        const pointInArea = !!includeInvisible || chart.isPointInArea(center);\n        if (!pointInArea && !inRange) {\n            return;\n        }\n        const distance = distanceMetric(position, center);\n        if (distance < minDistance) {\n            items = [\n                {\n                    element,\n                    datasetIndex,\n                    index\n                }\n            ];\n            minDistance = distance;\n        } else if (distance === minDistance) {\n            items.push({\n                element,\n                datasetIndex,\n                index\n            });\n        }\n    }\n    evaluateInteractionItems(chart, axis, position, evaluationFunc);\n    return items;\n}\n function getNearestItems(chart, position, axis, intersect, useFinalPosition, includeInvisible) {\n    if (!includeInvisible && !chart.isPointInArea(position)) {\n        return [];\n    }\n    return axis === 'r' && !intersect ? getNearestRadialItems(chart, position, axis, useFinalPosition) : getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition, includeInvisible);\n}\n function getAxisItems(chart, position, axis, intersect, useFinalPosition) {\n    const items = [];\n    const rangeMethod = axis === 'x' ? 'inXRange' : 'inYRange';\n    let intersectsItem = false;\n    evaluateInteractionItems(chart, axis, position, (element, datasetIndex, index)=>{\n        if (element[rangeMethod](position[axis], useFinalPosition)) {\n            items.push({\n                element,\n                datasetIndex,\n                index\n            });\n            intersectsItem = intersectsItem || element.inRange(position.x, position.y, useFinalPosition);\n        }\n    });\n    if (intersect && !intersectsItem) {\n        return [];\n    }\n    return items;\n}\n var Interaction = {\n    evaluateInteractionItems,\n    modes: {\n index (chart, e, options, useFinalPosition) {\n            const position = getRelativePosition(e, chart);\n            const axis = options.axis || 'x';\n            const includeInvisible = options.includeInvisible || false;\n            const items = options.intersect ? getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) : getNearestItems(chart, position, axis, false, useFinalPosition, includeInvisible);\n            const elements = [];\n            if (!items.length) {\n                return [];\n            }\n            chart.getSortedVisibleDatasetMetas().forEach((meta)=>{\n                const index = items[0].index;\n                const element = meta.data[index];\n                if (element && !element.skip) {\n                    elements.push({\n                        element,\n                        datasetIndex: meta.index,\n                        index\n                    });\n                }\n            });\n            return elements;\n        },\n dataset (chart, e, options, useFinalPosition) {\n            const position = getRelativePosition(e, chart);\n            const axis = options.axis || 'xy';\n            const includeInvisible = options.includeInvisible || false;\n            let items = options.intersect ? getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) : getNearestItems(chart, position, axis, false, useFinalPosition, includeInvisible);\n            if (items.length > 0) {\n                const datasetIndex = items[0].datasetIndex;\n                const data = chart.getDatasetMeta(datasetIndex).data;\n                items = [];\n                for(let i = 0; i < data.length; ++i){\n                    items.push({\n                        element: data[i],\n                        datasetIndex,\n                        index: i\n                    });\n                }\n            }\n            return items;\n        },\n point (chart, e, options, useFinalPosition) {\n            const position = getRelativePosition(e, chart);\n            const axis = options.axis || 'xy';\n            const includeInvisible = options.includeInvisible || false;\n            return getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible);\n        },\n nearest (chart, e, options, useFinalPosition) {\n            const position = getRelativePosition(e, chart);\n            const axis = options.axis || 'xy';\n            const includeInvisible = options.includeInvisible || false;\n            return getNearestItems(chart, position, axis, options.intersect, useFinalPosition, includeInvisible);\n        },\n x (chart, e, options, useFinalPosition) {\n            const position = getRelativePosition(e, chart);\n            return getAxisItems(chart, position, 'x', options.intersect, useFinalPosition);\n        },\n y (chart, e, options, useFinalPosition) {\n            const position = getRelativePosition(e, chart);\n            return getAxisItems(chart, position, 'y', options.intersect, useFinalPosition);\n        }\n    }\n};\n\nconst STATIC_POSITIONS = [\n    'left',\n    'top',\n    'right',\n    'bottom'\n];\nfunction filterByPosition(array, position) {\n    return array.filter((v)=>v.pos === position);\n}\nfunction filterDynamicPositionByAxis(array, axis) {\n    return array.filter((v)=>STATIC_POSITIONS.indexOf(v.pos) === -1 && v.box.axis === axis);\n}\nfunction sortByWeight(array, reverse) {\n    return array.sort((a, b)=>{\n        const v0 = reverse ? b : a;\n        const v1 = reverse ? a : b;\n        return v0.weight === v1.weight ? v0.index - v1.index : v0.weight - v1.weight;\n    });\n}\nfunction wrapBoxes(boxes) {\n    const layoutBoxes = [];\n    let i, ilen, box, pos, stack, stackWeight;\n    for(i = 0, ilen = (boxes || []).length; i < ilen; ++i){\n        box = boxes[i];\n        ({ position: pos , options: { stack , stackWeight =1  }  } = box);\n        layoutBoxes.push({\n            index: i,\n            box,\n            pos,\n            horizontal: box.isHorizontal(),\n            weight: box.weight,\n            stack: stack && pos + stack,\n            stackWeight\n        });\n    }\n    return layoutBoxes;\n}\nfunction buildStacks(layouts) {\n    const stacks = {};\n    for (const wrap of layouts){\n        const { stack , pos , stackWeight  } = wrap;\n        if (!stack || !STATIC_POSITIONS.includes(pos)) {\n            continue;\n        }\n        const _stack = stacks[stack] || (stacks[stack] = {\n            count: 0,\n            placed: 0,\n            weight: 0,\n            size: 0\n        });\n        _stack.count++;\n        _stack.weight += stackWeight;\n    }\n    return stacks;\n}\n function setLayoutDims(layouts, params) {\n    const stacks = buildStacks(layouts);\n    const { vBoxMaxWidth , hBoxMaxHeight  } = params;\n    let i, ilen, layout;\n    for(i = 0, ilen = layouts.length; i < ilen; ++i){\n        layout = layouts[i];\n        const { fullSize  } = layout.box;\n        const stack = stacks[layout.stack];\n        const factor = stack && layout.stackWeight / stack.weight;\n        if (layout.horizontal) {\n            layout.width = factor ? factor * vBoxMaxWidth : fullSize && params.availableWidth;\n            layout.height = hBoxMaxHeight;\n        } else {\n            layout.width = vBoxMaxWidth;\n            layout.height = factor ? factor * hBoxMaxHeight : fullSize && params.availableHeight;\n        }\n    }\n    return stacks;\n}\nfunction buildLayoutBoxes(boxes) {\n    const layoutBoxes = wrapBoxes(boxes);\n    const fullSize = sortByWeight(layoutBoxes.filter((wrap)=>wrap.box.fullSize), true);\n    const left = sortByWeight(filterByPosition(layoutBoxes, 'left'), true);\n    const right = sortByWeight(filterByPosition(layoutBoxes, 'right'));\n    const top = sortByWeight(filterByPosition(layoutBoxes, 'top'), true);\n    const bottom = sortByWeight(filterByPosition(layoutBoxes, 'bottom'));\n    const centerHorizontal = filterDynamicPositionByAxis(layoutBoxes, 'x');\n    const centerVertical = filterDynamicPositionByAxis(layoutBoxes, 'y');\n    return {\n        fullSize,\n        leftAndTop: left.concat(top),\n        rightAndBottom: right.concat(centerVertical).concat(bottom).concat(centerHorizontal),\n        chartArea: filterByPosition(layoutBoxes, 'chartArea'),\n        vertical: left.concat(right).concat(centerVertical),\n        horizontal: top.concat(bottom).concat(centerHorizontal)\n    };\n}\nfunction getCombinedMax(maxPadding, chartArea, a, b) {\n    return Math.max(maxPadding[a], chartArea[a]) + Math.max(maxPadding[b], chartArea[b]);\n}\nfunction updateMaxPadding(maxPadding, boxPadding) {\n    maxPadding.top = Math.max(maxPadding.top, boxPadding.top);\n    maxPadding.left = Math.max(maxPadding.left, boxPadding.left);\n    maxPadding.bottom = Math.max(maxPadding.bottom, boxPadding.bottom);\n    maxPadding.right = Math.max(maxPadding.right, boxPadding.right);\n}\nfunction updateDims(chartArea, params, layout, stacks) {\n    const { pos , box  } = layout;\n    const maxPadding = chartArea.maxPadding;\n    if (!isObject(pos)) {\n        if (layout.size) {\n            chartArea[pos] -= layout.size;\n        }\n        const stack = stacks[layout.stack] || {\n            size: 0,\n            count: 1\n        };\n        stack.size = Math.max(stack.size, layout.horizontal ? box.height : box.width);\n        layout.size = stack.size / stack.count;\n        chartArea[pos] += layout.size;\n    }\n    if (box.getPadding) {\n        updateMaxPadding(maxPadding, box.getPadding());\n    }\n    const newWidth = Math.max(0, params.outerWidth - getCombinedMax(maxPadding, chartArea, 'left', 'right'));\n    const newHeight = Math.max(0, params.outerHeight - getCombinedMax(maxPadding, chartArea, 'top', 'bottom'));\n    const widthChanged = newWidth !== chartArea.w;\n    const heightChanged = newHeight !== chartArea.h;\n    chartArea.w = newWidth;\n    chartArea.h = newHeight;\n    return layout.horizontal ? {\n        same: widthChanged,\n        other: heightChanged\n    } : {\n        same: heightChanged,\n        other: widthChanged\n    };\n}\nfunction handleMaxPadding(chartArea) {\n    const maxPadding = chartArea.maxPadding;\n    function updatePos(pos) {\n        const change = Math.max(maxPadding[pos] - chartArea[pos], 0);\n        chartArea[pos] += change;\n        return change;\n    }\n    chartArea.y += updatePos('top');\n    chartArea.x += updatePos('left');\n    updatePos('right');\n    updatePos('bottom');\n}\nfunction getMargins(horizontal, chartArea) {\n    const maxPadding = chartArea.maxPadding;\n    function marginForPositions(positions) {\n        const margin = {\n            left: 0,\n            top: 0,\n            right: 0,\n            bottom: 0\n        };\n        positions.forEach((pos)=>{\n            margin[pos] = Math.max(chartArea[pos], maxPadding[pos]);\n        });\n        return margin;\n    }\n    return horizontal ? marginForPositions([\n        'left',\n        'right'\n    ]) : marginForPositions([\n        'top',\n        'bottom'\n    ]);\n}\nfunction fitBoxes(boxes, chartArea, params, stacks) {\n    const refitBoxes = [];\n    let i, ilen, layout, box, refit, changed;\n    for(i = 0, ilen = boxes.length, refit = 0; i < ilen; ++i){\n        layout = boxes[i];\n        box = layout.box;\n        box.update(layout.width || chartArea.w, layout.height || chartArea.h, getMargins(layout.horizontal, chartArea));\n        const { same , other  } = updateDims(chartArea, params, layout, stacks);\n        refit |= same && refitBoxes.length;\n        changed = changed || other;\n        if (!box.fullSize) {\n            refitBoxes.push(layout);\n        }\n    }\n    return refit && fitBoxes(refitBoxes, chartArea, params, stacks) || changed;\n}\nfunction setBoxDims(box, left, top, width, height) {\n    box.top = top;\n    box.left = left;\n    box.right = left + width;\n    box.bottom = top + height;\n    box.width = width;\n    box.height = height;\n}\nfunction placeBoxes(boxes, chartArea, params, stacks) {\n    const userPadding = params.padding;\n    let { x , y  } = chartArea;\n    for (const layout of boxes){\n        const box = layout.box;\n        const stack = stacks[layout.stack] || {\n            count: 1,\n            placed: 0,\n            weight: 1\n        };\n        const weight = layout.stackWeight / stack.weight || 1;\n        if (layout.horizontal) {\n            const width = chartArea.w * weight;\n            const height = stack.size || box.height;\n            if (defined(stack.start)) {\n                y = stack.start;\n            }\n            if (box.fullSize) {\n                setBoxDims(box, userPadding.left, y, params.outerWidth - userPadding.right - userPadding.left, height);\n            } else {\n                setBoxDims(box, chartArea.left + stack.placed, y, width, height);\n            }\n            stack.start = y;\n            stack.placed += width;\n            y = box.bottom;\n        } else {\n            const height = chartArea.h * weight;\n            const width = stack.size || box.width;\n            if (defined(stack.start)) {\n                x = stack.start;\n            }\n            if (box.fullSize) {\n                setBoxDims(box, x, userPadding.top, width, params.outerHeight - userPadding.bottom - userPadding.top);\n            } else {\n                setBoxDims(box, x, chartArea.top + stack.placed, width, height);\n            }\n            stack.start = x;\n            stack.placed += height;\n            x = box.right;\n        }\n    }\n    chartArea.x = x;\n    chartArea.y = y;\n}\nvar layouts = {\n addBox (chart, item) {\n        if (!chart.boxes) {\n            chart.boxes = [];\n        }\n        item.fullSize = item.fullSize || false;\n        item.position = item.position || 'top';\n        item.weight = item.weight || 0;\n        item._layers = item._layers || function() {\n            return [\n                {\n                    z: 0,\n                    draw (chartArea) {\n                        item.draw(chartArea);\n                    }\n                }\n            ];\n        };\n        chart.boxes.push(item);\n    },\n removeBox (chart, layoutItem) {\n        const index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1;\n        if (index !== -1) {\n            chart.boxes.splice(index, 1);\n        }\n    },\n configure (chart, item, options) {\n        item.fullSize = options.fullSize;\n        item.position = options.position;\n        item.weight = options.weight;\n    },\n update (chart, width, height, minPadding) {\n        if (!chart) {\n            return;\n        }\n        const padding = toPadding(chart.options.layout.padding);\n        const availableWidth = Math.max(width - padding.width, 0);\n        const availableHeight = Math.max(height - padding.height, 0);\n        const boxes = buildLayoutBoxes(chart.boxes);\n        const verticalBoxes = boxes.vertical;\n        const horizontalBoxes = boxes.horizontal;\n        each(chart.boxes, (box)=>{\n            if (typeof box.beforeLayout === 'function') {\n                box.beforeLayout();\n            }\n        });\n        const visibleVerticalBoxCount = verticalBoxes.reduce((total, wrap)=>wrap.box.options && wrap.box.options.display === false ? total : total + 1, 0) || 1;\n        const params = Object.freeze({\n            outerWidth: width,\n            outerHeight: height,\n            padding,\n            availableWidth,\n            availableHeight,\n            vBoxMaxWidth: availableWidth / 2 / visibleVerticalBoxCount,\n            hBoxMaxHeight: availableHeight / 2\n        });\n        const maxPadding = Object.assign({}, padding);\n        updateMaxPadding(maxPadding, toPadding(minPadding));\n        const chartArea = Object.assign({\n            maxPadding,\n            w: availableWidth,\n            h: availableHeight,\n            x: padding.left,\n            y: padding.top\n        }, padding);\n        const stacks = setLayoutDims(verticalBoxes.concat(horizontalBoxes), params);\n        fitBoxes(boxes.fullSize, chartArea, params, stacks);\n        fitBoxes(verticalBoxes, chartArea, params, stacks);\n        if (fitBoxes(horizontalBoxes, chartArea, params, stacks)) {\n            fitBoxes(verticalBoxes, chartArea, params, stacks);\n        }\n        handleMaxPadding(chartArea);\n        placeBoxes(boxes.leftAndTop, chartArea, params, stacks);\n        chartArea.x += chartArea.w;\n        chartArea.y += chartArea.h;\n        placeBoxes(boxes.rightAndBottom, chartArea, params, stacks);\n        chart.chartArea = {\n            left: chartArea.left,\n            top: chartArea.top,\n            right: chartArea.left + chartArea.w,\n            bottom: chartArea.top + chartArea.h,\n            height: chartArea.h,\n            width: chartArea.w\n        };\n        each(boxes.chartArea, (layout)=>{\n            const box = layout.box;\n            Object.assign(box, chart.chartArea);\n            box.update(chartArea.w, chartArea.h, {\n                left: 0,\n                top: 0,\n                right: 0,\n                bottom: 0\n            });\n        });\n    }\n};\n\nclass BasePlatform {\n acquireContext(canvas, aspectRatio) {}\n releaseContext(context) {\n        return false;\n    }\n addEventListener(chart, type, listener) {}\n removeEventListener(chart, type, listener) {}\n getDevicePixelRatio() {\n        return 1;\n    }\n getMaximumSize(element, width, height, aspectRatio) {\n        width = Math.max(0, width || element.width);\n        height = height || element.height;\n        return {\n            width,\n            height: Math.max(0, aspectRatio ? Math.floor(width / aspectRatio) : height)\n        };\n    }\n isAttached(canvas) {\n        return true;\n    }\n updateConfig(config) {\n    }\n}\n\nclass BasicPlatform extends BasePlatform {\n    acquireContext(item) {\n        return item && item.getContext && item.getContext('2d') || null;\n    }\n    updateConfig(config) {\n        config.options.animation = false;\n    }\n}\n\nconst EXPANDO_KEY = '$chartjs';\n const EVENT_TYPES = {\n    touchstart: 'mousedown',\n    touchmove: 'mousemove',\n    touchend: 'mouseup',\n    pointerenter: 'mouseenter',\n    pointerdown: 'mousedown',\n    pointermove: 'mousemove',\n    pointerup: 'mouseup',\n    pointerleave: 'mouseout',\n    pointerout: 'mouseout'\n};\nconst isNullOrEmpty = (value)=>value === null || value === '';\n function initCanvas(canvas, aspectRatio) {\n    const style = canvas.style;\n    const renderHeight = canvas.getAttribute('height');\n    const renderWidth = canvas.getAttribute('width');\n    canvas[EXPANDO_KEY] = {\n        initial: {\n            height: renderHeight,\n            width: renderWidth,\n            style: {\n                display: style.display,\n                height: style.height,\n                width: style.width\n            }\n        }\n    };\n    style.display = style.display || 'block';\n    style.boxSizing = style.boxSizing || 'border-box';\n    if (isNullOrEmpty(renderWidth)) {\n        const displayWidth = readUsedSize(canvas, 'width');\n        if (displayWidth !== undefined) {\n            canvas.width = displayWidth;\n        }\n    }\n    if (isNullOrEmpty(renderHeight)) {\n        if (canvas.style.height === '') {\n            canvas.height = canvas.width / (aspectRatio || 2);\n        } else {\n            const displayHeight = readUsedSize(canvas, 'height');\n            if (displayHeight !== undefined) {\n                canvas.height = displayHeight;\n            }\n        }\n    }\n    return canvas;\n}\nconst eventListenerOptions = supportsEventListenerOptions ? {\n    passive: true\n} : false;\nfunction addListener(node, type, listener) {\n    node.addEventListener(type, listener, eventListenerOptions);\n}\nfunction removeListener(chart, type, listener) {\n    chart.canvas.removeEventListener(type, listener, eventListenerOptions);\n}\nfunction fromNativeEvent(event, chart) {\n    const type = EVENT_TYPES[event.type] || event.type;\n    const { x , y  } = getRelativePosition(event, chart);\n    return {\n        type,\n        chart,\n        native: event,\n        x: x !== undefined ? x : null,\n        y: y !== undefined ? y : null\n    };\n}\nfunction nodeListContains(nodeList, canvas) {\n    for (const node of nodeList){\n        if (node === canvas || node.contains(canvas)) {\n            return true;\n        }\n    }\n}\nfunction createAttachObserver(chart, type, listener) {\n    const canvas = chart.canvas;\n    const observer = new MutationObserver((entries)=>{\n        let trigger = false;\n        for (const entry of entries){\n            trigger = trigger || nodeListContains(entry.addedNodes, canvas);\n            trigger = trigger && !nodeListContains(entry.removedNodes, canvas);\n        }\n        if (trigger) {\n            listener();\n        }\n    });\n    observer.observe(document, {\n        childList: true,\n        subtree: true\n    });\n    return observer;\n}\nfunction createDetachObserver(chart, type, listener) {\n    const canvas = chart.canvas;\n    const observer = new MutationObserver((entries)=>{\n        let trigger = false;\n        for (const entry of entries){\n            trigger = trigger || nodeListContains(entry.removedNodes, canvas);\n            trigger = trigger && !nodeListContains(entry.addedNodes, canvas);\n        }\n        if (trigger) {\n            listener();\n        }\n    });\n    observer.observe(document, {\n        childList: true,\n        subtree: true\n    });\n    return observer;\n}\nconst drpListeningCharts = new Map();\nlet oldDevicePixelRatio = 0;\nfunction onWindowResize() {\n    const dpr = window.devicePixelRatio;\n    if (dpr === oldDevicePixelRatio) {\n        return;\n    }\n    oldDevicePixelRatio = dpr;\n    drpListeningCharts.forEach((resize, chart)=>{\n        if (chart.currentDevicePixelRatio !== dpr) {\n            resize();\n        }\n    });\n}\nfunction listenDevicePixelRatioChanges(chart, resize) {\n    if (!drpListeningCharts.size) {\n        window.addEventListener('resize', onWindowResize);\n    }\n    drpListeningCharts.set(chart, resize);\n}\nfunction unlistenDevicePixelRatioChanges(chart) {\n    drpListeningCharts.delete(chart);\n    if (!drpListeningCharts.size) {\n        window.removeEventListener('resize', onWindowResize);\n    }\n}\nfunction createResizeObserver(chart, type, listener) {\n    const canvas = chart.canvas;\n    const container = canvas && _getParentNode(canvas);\n    if (!container) {\n        return;\n    }\n    const resize = throttled((width, height)=>{\n        const w = container.clientWidth;\n        listener(width, height);\n        if (w < container.clientWidth) {\n            listener();\n        }\n    }, window);\n    const observer = new ResizeObserver((entries)=>{\n        const entry = entries[0];\n        const width = entry.contentRect.width;\n        const height = entry.contentRect.height;\n        if (width === 0 && height === 0) {\n            return;\n        }\n        resize(width, height);\n    });\n    observer.observe(container);\n    listenDevicePixelRatioChanges(chart, resize);\n    return observer;\n}\nfunction releaseObserver(chart, type, observer) {\n    if (observer) {\n        observer.disconnect();\n    }\n    if (type === 'resize') {\n        unlistenDevicePixelRatioChanges(chart);\n    }\n}\nfunction createProxyAndListen(chart, type, listener) {\n    const canvas = chart.canvas;\n    const proxy = throttled((event)=>{\n        if (chart.ctx !== null) {\n            listener(fromNativeEvent(event, chart));\n        }\n    }, chart);\n    addListener(canvas, type, proxy);\n    return proxy;\n}\n class DomPlatform extends BasePlatform {\n acquireContext(canvas, aspectRatio) {\n        const context = canvas && canvas.getContext && canvas.getContext('2d');\n        if (context && context.canvas === canvas) {\n            initCanvas(canvas, aspectRatio);\n            return context;\n        }\n        return null;\n    }\n releaseContext(context) {\n        const canvas = context.canvas;\n        if (!canvas[EXPANDO_KEY]) {\n            return false;\n        }\n        const initial = canvas[EXPANDO_KEY].initial;\n        [\n            'height',\n            'width'\n        ].forEach((prop)=>{\n            const value = initial[prop];\n            if (isNullOrUndef(value)) {\n                canvas.removeAttribute(prop);\n            } else {\n                canvas.setAttribute(prop, value);\n            }\n        });\n        const style = initial.style || {};\n        Object.keys(style).forEach((key)=>{\n            canvas.style[key] = style[key];\n        });\n        canvas.width = canvas.width;\n        delete canvas[EXPANDO_KEY];\n        return true;\n    }\n addEventListener(chart, type, listener) {\n        this.removeEventListener(chart, type);\n        const proxies = chart.$proxies || (chart.$proxies = {});\n        const handlers = {\n            attach: createAttachObserver,\n            detach: createDetachObserver,\n            resize: createResizeObserver\n        };\n        const handler = handlers[type] || createProxyAndListen;\n        proxies[type] = handler(chart, type, listener);\n    }\n removeEventListener(chart, type) {\n        const proxies = chart.$proxies || (chart.$proxies = {});\n        const proxy = proxies[type];\n        if (!proxy) {\n            return;\n        }\n        const handlers = {\n            attach: releaseObserver,\n            detach: releaseObserver,\n            resize: releaseObserver\n        };\n        const handler = handlers[type] || removeListener;\n        handler(chart, type, proxy);\n        proxies[type] = undefined;\n    }\n    getDevicePixelRatio() {\n        return window.devicePixelRatio;\n    }\n getMaximumSize(canvas, width, height, aspectRatio) {\n        return getMaximumSize(canvas, width, height, aspectRatio);\n    }\n isAttached(canvas) {\n        const container = _getParentNode(canvas);\n        return !!(container && container.isConnected);\n    }\n}\n\nfunction _detectPlatform(canvas) {\n    if (!_isDomSupported() || typeof OffscreenCanvas !== 'undefined' && canvas instanceof OffscreenCanvas) {\n        return BasicPlatform;\n    }\n    return DomPlatform;\n}\n\nclass Element {\n    static defaults = {};\n    static defaultRoutes = undefined;\n    x;\n    y;\n    active = false;\n    options;\n    $animations;\n    tooltipPosition(useFinalPosition) {\n        const { x , y  } = this.getProps([\n            'x',\n            'y'\n        ], useFinalPosition);\n        return {\n            x,\n            y\n        };\n    }\n    hasValue() {\n        return isNumber(this.x) && isNumber(this.y);\n    }\n    getProps(props, final) {\n        const anims = this.$animations;\n        if (!final || !anims) {\n            // let's not create an object, if not needed\n            return this;\n        }\n        const ret = {};\n        props.forEach((prop)=>{\n            ret[prop] = anims[prop] && anims[prop].active() ? anims[prop]._to : this[prop];\n        });\n        return ret;\n    }\n}\n\nfunction autoSkip(scale, ticks) {\n    const tickOpts = scale.options.ticks;\n    const determinedMaxTicks = determineMaxTicks(scale);\n    const ticksLimit = Math.min(tickOpts.maxTicksLimit || determinedMaxTicks, determinedMaxTicks);\n    const majorIndices = tickOpts.major.enabled ? getMajorIndices(ticks) : [];\n    const numMajorIndices = majorIndices.length;\n    const first = majorIndices[0];\n    const last = majorIndices[numMajorIndices - 1];\n    const newTicks = [];\n    if (numMajorIndices > ticksLimit) {\n        skipMajors(ticks, newTicks, majorIndices, numMajorIndices / ticksLimit);\n        return newTicks;\n    }\n    const spacing = calculateSpacing(majorIndices, ticks, ticksLimit);\n    if (numMajorIndices > 0) {\n        let i, ilen;\n        const avgMajorSpacing = numMajorIndices > 1 ? Math.round((last - first) / (numMajorIndices - 1)) : null;\n        skip(ticks, newTicks, spacing, isNullOrUndef(avgMajorSpacing) ? 0 : first - avgMajorSpacing, first);\n        for(i = 0, ilen = numMajorIndices - 1; i < ilen; i++){\n            skip(ticks, newTicks, spacing, majorIndices[i], majorIndices[i + 1]);\n        }\n        skip(ticks, newTicks, spacing, last, isNullOrUndef(avgMajorSpacing) ? ticks.length : last + avgMajorSpacing);\n        return newTicks;\n    }\n    skip(ticks, newTicks, spacing);\n    return newTicks;\n}\nfunction determineMaxTicks(scale) {\n    const offset = scale.options.offset;\n    const tickLength = scale._tickSize();\n    const maxScale = scale._length / tickLength + (offset ? 0 : 1);\n    const maxChart = scale._maxLength / tickLength;\n    return Math.floor(Math.min(maxScale, maxChart));\n}\n function calculateSpacing(majorIndices, ticks, ticksLimit) {\n    const evenMajorSpacing = getEvenSpacing(majorIndices);\n    const spacing = ticks.length / ticksLimit;\n    if (!evenMajorSpacing) {\n        return Math.max(spacing, 1);\n    }\n    const factors = _factorize(evenMajorSpacing);\n    for(let i = 0, ilen = factors.length - 1; i < ilen; i++){\n        const factor = factors[i];\n        if (factor > spacing) {\n            return factor;\n        }\n    }\n    return Math.max(spacing, 1);\n}\n function getMajorIndices(ticks) {\n    const result = [];\n    let i, ilen;\n    for(i = 0, ilen = ticks.length; i < ilen; i++){\n        if (ticks[i].major) {\n            result.push(i);\n        }\n    }\n    return result;\n}\n function skipMajors(ticks, newTicks, majorIndices, spacing) {\n    let count = 0;\n    let next = majorIndices[0];\n    let i;\n    spacing = Math.ceil(spacing);\n    for(i = 0; i < ticks.length; i++){\n        if (i === next) {\n            newTicks.push(ticks[i]);\n            count++;\n            next = majorIndices[count * spacing];\n        }\n    }\n}\n function skip(ticks, newTicks, spacing, majorStart, majorEnd) {\n    const start = valueOrDefault(majorStart, 0);\n    const end = Math.min(valueOrDefault(majorEnd, ticks.length), ticks.length);\n    let count = 0;\n    let length, i, next;\n    spacing = Math.ceil(spacing);\n    if (majorEnd) {\n        length = majorEnd - majorStart;\n        spacing = length / Math.floor(length / spacing);\n    }\n    next = start;\n    while(next < 0){\n        count++;\n        next = Math.round(start + count * spacing);\n    }\n    for(i = Math.max(start, 0); i < end; i++){\n        if (i === next) {\n            newTicks.push(ticks[i]);\n            count++;\n            next = Math.round(start + count * spacing);\n        }\n    }\n}\n function getEvenSpacing(arr) {\n    const len = arr.length;\n    let i, diff;\n    if (len < 2) {\n        return false;\n    }\n    for(diff = arr[0], i = 1; i < len; ++i){\n        if (arr[i] - arr[i - 1] !== diff) {\n            return false;\n        }\n    }\n    return diff;\n}\n\nconst reverseAlign = (align)=>align === 'left' ? 'right' : align === 'right' ? 'left' : align;\nconst offsetFromEdge = (scale, edge, offset)=>edge === 'top' || edge === 'left' ? scale[edge] + offset : scale[edge] - offset;\nconst getTicksLimit = (ticksLength, maxTicksLimit)=>Math.min(maxTicksLimit || ticksLength, ticksLength);\n function sample(arr, numItems) {\n    const result = [];\n    const increment = arr.length / numItems;\n    const len = arr.length;\n    let i = 0;\n    for(; i < len; i += increment){\n        result.push(arr[Math.floor(i)]);\n    }\n    return result;\n}\n function getPixelForGridLine(scale, index, offsetGridLines) {\n    const length = scale.ticks.length;\n    const validIndex = Math.min(index, length - 1);\n    const start = scale._startPixel;\n    const end = scale._endPixel;\n    const epsilon = 1e-6;\n    let lineValue = scale.getPixelForTick(validIndex);\n    let offset;\n    if (offsetGridLines) {\n        if (length === 1) {\n            offset = Math.max(lineValue - start, end - lineValue);\n        } else if (index === 0) {\n            offset = (scale.getPixelForTick(1) - lineValue) / 2;\n        } else {\n            offset = (lineValue - scale.getPixelForTick(validIndex - 1)) / 2;\n        }\n        lineValue += validIndex < index ? offset : -offset;\n        if (lineValue < start - epsilon || lineValue > end + epsilon) {\n            return;\n        }\n    }\n    return lineValue;\n}\n function garbageCollect(caches, length) {\n    each(caches, (cache)=>{\n        const gc = cache.gc;\n        const gcLen = gc.length / 2;\n        let i;\n        if (gcLen > length) {\n            for(i = 0; i < gcLen; ++i){\n                delete cache.data[gc[i]];\n            }\n            gc.splice(0, gcLen);\n        }\n    });\n}\n function getTickMarkLength(options) {\n    return options.drawTicks ? options.tickLength : 0;\n}\n function getTitleHeight(options, fallback) {\n    if (!options.display) {\n        return 0;\n    }\n    const font = toFont(options.font, fallback);\n    const padding = toPadding(options.padding);\n    const lines = isArray(options.text) ? options.text.length : 1;\n    return lines * font.lineHeight + padding.height;\n}\nfunction createScaleContext(parent, scale) {\n    return createContext(parent, {\n        scale,\n        type: 'scale'\n    });\n}\nfunction createTickContext(parent, index, tick) {\n    return createContext(parent, {\n        tick,\n        index,\n        type: 'tick'\n    });\n}\nfunction titleAlign(align, position, reverse) {\n     let ret = _toLeftRightCenter(align);\n    if (reverse && position !== 'right' || !reverse && position === 'right') {\n        ret = reverseAlign(ret);\n    }\n    return ret;\n}\nfunction titleArgs(scale, offset, position, align) {\n    const { top , left , bottom , right , chart  } = scale;\n    const { chartArea , scales  } = chart;\n    let rotation = 0;\n    let maxWidth, titleX, titleY;\n    const height = bottom - top;\n    const width = right - left;\n    if (scale.isHorizontal()) {\n        titleX = _alignStartEnd(align, left, right);\n        if (isObject(position)) {\n            const positionAxisID = Object.keys(position)[0];\n            const value = position[positionAxisID];\n            titleY = scales[positionAxisID].getPixelForValue(value) + height - offset;\n        } else if (position === 'center') {\n            titleY = (chartArea.bottom + chartArea.top) / 2 + height - offset;\n        } else {\n            titleY = offsetFromEdge(scale, position, offset);\n        }\n        maxWidth = right - left;\n    } else {\n        if (isObject(position)) {\n            const positionAxisID = Object.keys(position)[0];\n            const value = position[positionAxisID];\n            titleX = scales[positionAxisID].getPixelForValue(value) - width + offset;\n        } else if (position === 'center') {\n            titleX = (chartArea.left + chartArea.right) / 2 - width + offset;\n        } else {\n            titleX = offsetFromEdge(scale, position, offset);\n        }\n        titleY = _alignStartEnd(align, bottom, top);\n        rotation = position === 'left' ? -HALF_PI : HALF_PI;\n    }\n    return {\n        titleX,\n        titleY,\n        maxWidth,\n        rotation\n    };\n}\nclass Scale extends Element {\n    constructor(cfg){\n        super();\n         this.id = cfg.id;\n         this.type = cfg.type;\n         this.options = undefined;\n         this.ctx = cfg.ctx;\n         this.chart = cfg.chart;\n         this.top = undefined;\n         this.bottom = undefined;\n         this.left = undefined;\n         this.right = undefined;\n         this.width = undefined;\n         this.height = undefined;\n        this._margins = {\n            left: 0,\n            right: 0,\n            top: 0,\n            bottom: 0\n        };\n         this.maxWidth = undefined;\n         this.maxHeight = undefined;\n         this.paddingTop = undefined;\n         this.paddingBottom = undefined;\n         this.paddingLeft = undefined;\n         this.paddingRight = undefined;\n         this.axis = undefined;\n         this.labelRotation = undefined;\n        this.min = undefined;\n        this.max = undefined;\n        this._range = undefined;\n         this.ticks = [];\n         this._gridLineItems = null;\n         this._labelItems = null;\n         this._labelSizes = null;\n        this._length = 0;\n        this._maxLength = 0;\n        this._longestTextCache = {};\n         this._startPixel = undefined;\n         this._endPixel = undefined;\n        this._reversePixels = false;\n        this._userMax = undefined;\n        this._userMin = undefined;\n        this._suggestedMax = undefined;\n        this._suggestedMin = undefined;\n        this._ticksLength = 0;\n        this._borderValue = 0;\n        this._cache = {};\n        this._dataLimitsCached = false;\n        this.$context = undefined;\n    }\n init(options) {\n        this.options = options.setContext(this.getContext());\n        this.axis = options.axis;\n        this._userMin = this.parse(options.min);\n        this._userMax = this.parse(options.max);\n        this._suggestedMin = this.parse(options.suggestedMin);\n        this._suggestedMax = this.parse(options.suggestedMax);\n    }\n parse(raw, index) {\n        return raw;\n    }\n getUserBounds() {\n        let { _userMin , _userMax , _suggestedMin , _suggestedMax  } = this;\n        _userMin = finiteOrDefault(_userMin, Number.POSITIVE_INFINITY);\n        _userMax = finiteOrDefault(_userMax, Number.NEGATIVE_INFINITY);\n        _suggestedMin = finiteOrDefault(_suggestedMin, Number.POSITIVE_INFINITY);\n        _suggestedMax = finiteOrDefault(_suggestedMax, Number.NEGATIVE_INFINITY);\n        return {\n            min: finiteOrDefault(_userMin, _suggestedMin),\n            max: finiteOrDefault(_userMax, _suggestedMax),\n            minDefined: isNumberFinite(_userMin),\n            maxDefined: isNumberFinite(_userMax)\n        };\n    }\n getMinMax(canStack) {\n        let { min , max , minDefined , maxDefined  } = this.getUserBounds();\n        let range;\n        if (minDefined && maxDefined) {\n            return {\n                min,\n                max\n            };\n        }\n        const metas = this.getMatchingVisibleMetas();\n        for(let i = 0, ilen = metas.length; i < ilen; ++i){\n            range = metas[i].controller.getMinMax(this, canStack);\n            if (!minDefined) {\n                min = Math.min(min, range.min);\n            }\n            if (!maxDefined) {\n                max = Math.max(max, range.max);\n            }\n        }\n        min = maxDefined && min > max ? max : min;\n        max = minDefined && min > max ? min : max;\n        return {\n            min: finiteOrDefault(min, finiteOrDefault(max, min)),\n            max: finiteOrDefault(max, finiteOrDefault(min, max))\n        };\n    }\n getPadding() {\n        return {\n            left: this.paddingLeft || 0,\n            top: this.paddingTop || 0,\n            right: this.paddingRight || 0,\n            bottom: this.paddingBottom || 0\n        };\n    }\n getTicks() {\n        return this.ticks;\n    }\n getLabels() {\n        const data = this.chart.data;\n        return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels || [];\n    }\n getLabelItems(chartArea = this.chart.chartArea) {\n        const items = this._labelItems || (this._labelItems = this._computeLabelItems(chartArea));\n        return items;\n    }\n    beforeLayout() {\n        this._cache = {};\n        this._dataLimitsCached = false;\n    }\n    beforeUpdate() {\n        callback(this.options.beforeUpdate, [\n            this\n        ]);\n    }\n update(maxWidth, maxHeight, margins) {\n        const { beginAtZero , grace , ticks: tickOpts  } = this.options;\n        const sampleSize = tickOpts.sampleSize;\n        this.beforeUpdate();\n        this.maxWidth = maxWidth;\n        this.maxHeight = maxHeight;\n        this._margins = margins = Object.assign({\n            left: 0,\n            right: 0,\n            top: 0,\n            bottom: 0\n        }, margins);\n        this.ticks = null;\n        this._labelSizes = null;\n        this._gridLineItems = null;\n        this._labelItems = null;\n        this.beforeSetDimensions();\n        this.setDimensions();\n        this.afterSetDimensions();\n        this._maxLength = this.isHorizontal() ? this.width + margins.left + margins.right : this.height + margins.top + margins.bottom;\n        if (!this._dataLimitsCached) {\n            this.beforeDataLimits();\n            this.determineDataLimits();\n            this.afterDataLimits();\n            this._range = _addGrace(this, grace, beginAtZero);\n            this._dataLimitsCached = true;\n        }\n        this.beforeBuildTicks();\n        this.ticks = this.buildTicks() || [];\n        this.afterBuildTicks();\n        const samplingEnabled = sampleSize < this.ticks.length;\n        this._convertTicksToLabels(samplingEnabled ? sample(this.ticks, sampleSize) : this.ticks);\n        this.configure();\n        this.beforeCalculateLabelRotation();\n        this.calculateLabelRotation();\n        this.afterCalculateLabelRotation();\n        if (tickOpts.display && (tickOpts.autoSkip || tickOpts.source === 'auto')) {\n            this.ticks = autoSkip(this, this.ticks);\n            this._labelSizes = null;\n            this.afterAutoSkip();\n        }\n        if (samplingEnabled) {\n            this._convertTicksToLabels(this.ticks);\n        }\n        this.beforeFit();\n        this.fit();\n        this.afterFit();\n        this.afterUpdate();\n    }\n configure() {\n        let reversePixels = this.options.reverse;\n        let startPixel, endPixel;\n        if (this.isHorizontal()) {\n            startPixel = this.left;\n            endPixel = this.right;\n        } else {\n            startPixel = this.top;\n            endPixel = this.bottom;\n            reversePixels = !reversePixels;\n        }\n        this._startPixel = startPixel;\n        this._endPixel = endPixel;\n        this._reversePixels = reversePixels;\n        this._length = endPixel - startPixel;\n        this._alignToPixels = this.options.alignToPixels;\n    }\n    afterUpdate() {\n        callback(this.options.afterUpdate, [\n            this\n        ]);\n    }\n    beforeSetDimensions() {\n        callback(this.options.beforeSetDimensions, [\n            this\n        ]);\n    }\n    setDimensions() {\n        if (this.isHorizontal()) {\n            this.width = this.maxWidth;\n            this.left = 0;\n            this.right = this.width;\n        } else {\n            this.height = this.maxHeight;\n            this.top = 0;\n            this.bottom = this.height;\n        }\n        this.paddingLeft = 0;\n        this.paddingTop = 0;\n        this.paddingRight = 0;\n        this.paddingBottom = 0;\n    }\n    afterSetDimensions() {\n        callback(this.options.afterSetDimensions, [\n            this\n        ]);\n    }\n    _callHooks(name) {\n        this.chart.notifyPlugins(name, this.getContext());\n        callback(this.options[name], [\n            this\n        ]);\n    }\n    beforeDataLimits() {\n        this._callHooks('beforeDataLimits');\n    }\n    determineDataLimits() {}\n    afterDataLimits() {\n        this._callHooks('afterDataLimits');\n    }\n    beforeBuildTicks() {\n        this._callHooks('beforeBuildTicks');\n    }\n buildTicks() {\n        return [];\n    }\n    afterBuildTicks() {\n        this._callHooks('afterBuildTicks');\n    }\n    beforeTickToLabelConversion() {\n        callback(this.options.beforeTickToLabelConversion, [\n            this\n        ]);\n    }\n generateTickLabels(ticks) {\n        const tickOpts = this.options.ticks;\n        let i, ilen, tick;\n        for(i = 0, ilen = ticks.length; i < ilen; i++){\n            tick = ticks[i];\n            tick.label = callback(tickOpts.callback, [\n                tick.value,\n                i,\n                ticks\n            ], this);\n        }\n    }\n    afterTickToLabelConversion() {\n        callback(this.options.afterTickToLabelConversion, [\n            this\n        ]);\n    }\n    beforeCalculateLabelRotation() {\n        callback(this.options.beforeCalculateLabelRotation, [\n            this\n        ]);\n    }\n    calculateLabelRotation() {\n        const options = this.options;\n        const tickOpts = options.ticks;\n        const numTicks = getTicksLimit(this.ticks.length, options.ticks.maxTicksLimit);\n        const minRotation = tickOpts.minRotation || 0;\n        const maxRotation = tickOpts.maxRotation;\n        let labelRotation = minRotation;\n        let tickWidth, maxHeight, maxLabelDiagonal;\n        if (!this._isVisible() || !tickOpts.display || minRotation >= maxRotation || numTicks <= 1 || !this.isHorizontal()) {\n            this.labelRotation = minRotation;\n            return;\n        }\n        const labelSizes = this._getLabelSizes();\n        const maxLabelWidth = labelSizes.widest.width;\n        const maxLabelHeight = labelSizes.highest.height;\n        const maxWidth = _limitValue(this.chart.width - maxLabelWidth, 0, this.maxWidth);\n        tickWidth = options.offset ? this.maxWidth / numTicks : maxWidth / (numTicks - 1);\n        if (maxLabelWidth + 6 > tickWidth) {\n            tickWidth = maxWidth / (numTicks - (options.offset ? 0.5 : 1));\n            maxHeight = this.maxHeight - getTickMarkLength(options.grid) - tickOpts.padding - getTitleHeight(options.title, this.chart.options.font);\n            maxLabelDiagonal = Math.sqrt(maxLabelWidth * maxLabelWidth + maxLabelHeight * maxLabelHeight);\n            labelRotation = toDegrees(Math.min(Math.asin(_limitValue((labelSizes.highest.height + 6) / tickWidth, -1, 1)), Math.asin(_limitValue(maxHeight / maxLabelDiagonal, -1, 1)) - Math.asin(_limitValue(maxLabelHeight / maxLabelDiagonal, -1, 1))));\n            labelRotation = Math.max(minRotation, Math.min(maxRotation, labelRotation));\n        }\n        this.labelRotation = labelRotation;\n    }\n    afterCalculateLabelRotation() {\n        callback(this.options.afterCalculateLabelRotation, [\n            this\n        ]);\n    }\n    afterAutoSkip() {}\n    beforeFit() {\n        callback(this.options.beforeFit, [\n            this\n        ]);\n    }\n    fit() {\n        const minSize = {\n            width: 0,\n            height: 0\n        };\n        const { chart , options: { ticks: tickOpts , title: titleOpts , grid: gridOpts  }  } = this;\n        const display = this._isVisible();\n        const isHorizontal = this.isHorizontal();\n        if (display) {\n            const titleHeight = getTitleHeight(titleOpts, chart.options.font);\n            if (isHorizontal) {\n                minSize.width = this.maxWidth;\n                minSize.height = getTickMarkLength(gridOpts) + titleHeight;\n            } else {\n                minSize.height = this.maxHeight;\n                minSize.width = getTickMarkLength(gridOpts) + titleHeight;\n            }\n            if (tickOpts.display && this.ticks.length) {\n                const { first , last , widest , highest  } = this._getLabelSizes();\n                const tickPadding = tickOpts.padding * 2;\n                const angleRadians = toRadians(this.labelRotation);\n                const cos = Math.cos(angleRadians);\n                const sin = Math.sin(angleRadians);\n                if (isHorizontal) {\n                    const labelHeight = tickOpts.mirror ? 0 : sin * widest.width + cos * highest.height;\n                    minSize.height = Math.min(this.maxHeight, minSize.height + labelHeight + tickPadding);\n                } else {\n                    const labelWidth = tickOpts.mirror ? 0 : cos * widest.width + sin * highest.height;\n                    minSize.width = Math.min(this.maxWidth, minSize.width + labelWidth + tickPadding);\n                }\n                this._calculatePadding(first, last, sin, cos);\n            }\n        }\n        this._handleMargins();\n        if (isHorizontal) {\n            this.width = this._length = chart.width - this._margins.left - this._margins.right;\n            this.height = minSize.height;\n        } else {\n            this.width = minSize.width;\n            this.height = this._length = chart.height - this._margins.top - this._margins.bottom;\n        }\n    }\n    _calculatePadding(first, last, sin, cos) {\n        const { ticks: { align , padding  } , position  } = this.options;\n        const isRotated = this.labelRotation !== 0;\n        const labelsBelowTicks = position !== 'top' && this.axis === 'x';\n        if (this.isHorizontal()) {\n            const offsetLeft = this.getPixelForTick(0) - this.left;\n            const offsetRight = this.right - this.getPixelForTick(this.ticks.length - 1);\n            let paddingLeft = 0;\n            let paddingRight = 0;\n            if (isRotated) {\n                if (labelsBelowTicks) {\n                    paddingLeft = cos * first.width;\n                    paddingRight = sin * last.height;\n                } else {\n                    paddingLeft = sin * first.height;\n                    paddingRight = cos * last.width;\n                }\n            } else if (align === 'start') {\n                paddingRight = last.width;\n            } else if (align === 'end') {\n                paddingLeft = first.width;\n            } else if (align !== 'inner') {\n                paddingLeft = first.width / 2;\n                paddingRight = last.width / 2;\n            }\n            this.paddingLeft = Math.max((paddingLeft - offsetLeft + padding) * this.width / (this.width - offsetLeft), 0);\n            this.paddingRight = Math.max((paddingRight - offsetRight + padding) * this.width / (this.width - offsetRight), 0);\n        } else {\n            let paddingTop = last.height / 2;\n            let paddingBottom = first.height / 2;\n            if (align === 'start') {\n                paddingTop = 0;\n                paddingBottom = first.height;\n            } else if (align === 'end') {\n                paddingTop = last.height;\n                paddingBottom = 0;\n            }\n            this.paddingTop = paddingTop + padding;\n            this.paddingBottom = paddingBottom + padding;\n        }\n    }\n _handleMargins() {\n        if (this._margins) {\n            this._margins.left = Math.max(this.paddingLeft, this._margins.left);\n            this._margins.top = Math.max(this.paddingTop, this._margins.top);\n            this._margins.right = Math.max(this.paddingRight, this._margins.right);\n            this._margins.bottom = Math.max(this.paddingBottom, this._margins.bottom);\n        }\n    }\n    afterFit() {\n        callback(this.options.afterFit, [\n            this\n        ]);\n    }\n isHorizontal() {\n        const { axis , position  } = this.options;\n        return position === 'top' || position === 'bottom' || axis === 'x';\n    }\n isFullSize() {\n        return this.options.fullSize;\n    }\n _convertTicksToLabels(ticks) {\n        this.beforeTickToLabelConversion();\n        this.generateTickLabels(ticks);\n        let i, ilen;\n        for(i = 0, ilen = ticks.length; i < ilen; i++){\n            if (isNullOrUndef(ticks[i].label)) {\n                ticks.splice(i, 1);\n                ilen--;\n                i--;\n            }\n        }\n        this.afterTickToLabelConversion();\n    }\n _getLabelSizes() {\n        let labelSizes = this._labelSizes;\n        if (!labelSizes) {\n            const sampleSize = this.options.ticks.sampleSize;\n            let ticks = this.ticks;\n            if (sampleSize < ticks.length) {\n                ticks = sample(ticks, sampleSize);\n            }\n            this._labelSizes = labelSizes = this._computeLabelSizes(ticks, ticks.length, this.options.ticks.maxTicksLimit);\n        }\n        return labelSizes;\n    }\n _computeLabelSizes(ticks, length, maxTicksLimit) {\n        const { ctx , _longestTextCache: caches  } = this;\n        const widths = [];\n        const heights = [];\n        const increment = Math.floor(length / getTicksLimit(length, maxTicksLimit));\n        let widestLabelSize = 0;\n        let highestLabelSize = 0;\n        let i, j, jlen, label, tickFont, fontString, cache, lineHeight, width, height, nestedLabel;\n        for(i = 0; i < length; i += increment){\n            label = ticks[i].label;\n            tickFont = this._resolveTickFontOptions(i);\n            ctx.font = fontString = tickFont.string;\n            cache = caches[fontString] = caches[fontString] || {\n                data: {},\n                gc: []\n            };\n            lineHeight = tickFont.lineHeight;\n            width = height = 0;\n            if (!isNullOrUndef(label) && !isArray(label)) {\n                width = _measureText(ctx, cache.data, cache.gc, width, label);\n                height = lineHeight;\n            } else if (isArray(label)) {\n                for(j = 0, jlen = label.length; j < jlen; ++j){\n                    nestedLabel =  label[j];\n                    if (!isNullOrUndef(nestedLabel) && !isArray(nestedLabel)) {\n                        width = _measureText(ctx, cache.data, cache.gc, width, nestedLabel);\n                        height += lineHeight;\n                    }\n                }\n            }\n            widths.push(width);\n            heights.push(height);\n            widestLabelSize = Math.max(width, widestLabelSize);\n            highestLabelSize = Math.max(height, highestLabelSize);\n        }\n        garbageCollect(caches, length);\n        const widest = widths.indexOf(widestLabelSize);\n        const highest = heights.indexOf(highestLabelSize);\n        const valueAt = (idx)=>({\n                width: widths[idx] || 0,\n                height: heights[idx] || 0\n            });\n        return {\n            first: valueAt(0),\n            last: valueAt(length - 1),\n            widest: valueAt(widest),\n            highest: valueAt(highest),\n            widths,\n            heights\n        };\n    }\n getLabelForValue(value) {\n        return value;\n    }\n getPixelForValue(value, index) {\n        return NaN;\n    }\n getValueForPixel(pixel) {}\n getPixelForTick(index) {\n        const ticks = this.ticks;\n        if (index < 0 || index > ticks.length - 1) {\n            return null;\n        }\n        return this.getPixelForValue(ticks[index].value);\n    }\n getPixelForDecimal(decimal) {\n        if (this._reversePixels) {\n            decimal = 1 - decimal;\n        }\n        const pixel = this._startPixel + decimal * this._length;\n        return _int16Range(this._alignToPixels ? _alignPixel(this.chart, pixel, 0) : pixel);\n    }\n getDecimalForPixel(pixel) {\n        const decimal = (pixel - this._startPixel) / this._length;\n        return this._reversePixels ? 1 - decimal : decimal;\n    }\n getBasePixel() {\n        return this.getPixelForValue(this.getBaseValue());\n    }\n getBaseValue() {\n        const { min , max  } = this;\n        return min < 0 && max < 0 ? max : min > 0 && max > 0 ? min : 0;\n    }\n getContext(index) {\n        const ticks = this.ticks || [];\n        if (index >= 0 && index < ticks.length) {\n            const tick = ticks[index];\n            return tick.$context || (tick.$context = createTickContext(this.getContext(), index, tick));\n        }\n        return this.$context || (this.$context = createScaleContext(this.chart.getContext(), this));\n    }\n _tickSize() {\n        const optionTicks = this.options.ticks;\n        const rot = toRadians(this.labelRotation);\n        const cos = Math.abs(Math.cos(rot));\n        const sin = Math.abs(Math.sin(rot));\n        const labelSizes = this._getLabelSizes();\n        const padding = optionTicks.autoSkipPadding || 0;\n        const w = labelSizes ? labelSizes.widest.width + padding : 0;\n        const h = labelSizes ? labelSizes.highest.height + padding : 0;\n        return this.isHorizontal() ? h * cos > w * sin ? w / cos : h / sin : h * sin < w * cos ? h / cos : w / sin;\n    }\n _isVisible() {\n        const display = this.options.display;\n        if (display !== 'auto') {\n            return !!display;\n        }\n        return this.getMatchingVisibleMetas().length > 0;\n    }\n _computeGridLineItems(chartArea) {\n        const axis = this.axis;\n        const chart = this.chart;\n        const options = this.options;\n        const { grid , position , border  } = options;\n        const offset = grid.offset;\n        const isHorizontal = this.isHorizontal();\n        const ticks = this.ticks;\n        const ticksLength = ticks.length + (offset ? 1 : 0);\n        const tl = getTickMarkLength(grid);\n        const items = [];\n        const borderOpts = border.setContext(this.getContext());\n        const axisWidth = borderOpts.display ? borderOpts.width : 0;\n        const axisHalfWidth = axisWidth / 2;\n        const alignBorderValue = function(pixel) {\n            return _alignPixel(chart, pixel, axisWidth);\n        };\n        let borderValue, i, lineValue, alignedLineValue;\n        let tx1, ty1, tx2, ty2, x1, y1, x2, y2;\n        if (position === 'top') {\n            borderValue = alignBorderValue(this.bottom);\n            ty1 = this.bottom - tl;\n            ty2 = borderValue - axisHalfWidth;\n            y1 = alignBorderValue(chartArea.top) + axisHalfWidth;\n            y2 = chartArea.bottom;\n        } else if (position === 'bottom') {\n            borderValue = alignBorderValue(this.top);\n            y1 = chartArea.top;\n            y2 = alignBorderValue(chartArea.bottom) - axisHalfWidth;\n            ty1 = borderValue + axisHalfWidth;\n            ty2 = this.top + tl;\n        } else if (position === 'left') {\n            borderValue = alignBorderValue(this.right);\n            tx1 = this.right - tl;\n            tx2 = borderValue - axisHalfWidth;\n            x1 = alignBorderValue(chartArea.left) + axisHalfWidth;\n            x2 = chartArea.right;\n        } else if (position === 'right') {\n            borderValue = alignBorderValue(this.left);\n            x1 = chartArea.left;\n            x2 = alignBorderValue(chartArea.right) - axisHalfWidth;\n            tx1 = borderValue + axisHalfWidth;\n            tx2 = this.left + tl;\n        } else if (axis === 'x') {\n            if (position === 'center') {\n                borderValue = alignBorderValue((chartArea.top + chartArea.bottom) / 2 + 0.5);\n            } else if (isObject(position)) {\n                const positionAxisID = Object.keys(position)[0];\n                const value = position[positionAxisID];\n                borderValue = alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value));\n            }\n            y1 = chartArea.top;\n            y2 = chartArea.bottom;\n            ty1 = borderValue + axisHalfWidth;\n            ty2 = ty1 + tl;\n        } else if (axis === 'y') {\n            if (position === 'center') {\n                borderValue = alignBorderValue((chartArea.left + chartArea.right) / 2);\n            } else if (isObject(position)) {\n                const positionAxisID = Object.keys(position)[0];\n                const value = position[positionAxisID];\n                borderValue = alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value));\n            }\n            tx1 = borderValue - axisHalfWidth;\n            tx2 = tx1 - tl;\n            x1 = chartArea.left;\n            x2 = chartArea.right;\n        }\n        const limit = valueOrDefault(options.ticks.maxTicksLimit, ticksLength);\n        const step = Math.max(1, Math.ceil(ticksLength / limit));\n        for(i = 0; i < ticksLength; i += step){\n            const context = this.getContext(i);\n            const optsAtIndex = grid.setContext(context);\n            const optsAtIndexBorder = border.setContext(context);\n            const lineWidth = optsAtIndex.lineWidth;\n            const lineColor = optsAtIndex.color;\n            const borderDash = optsAtIndexBorder.dash || [];\n            const borderDashOffset = optsAtIndexBorder.dashOffset;\n            const tickWidth = optsAtIndex.tickWidth;\n            const tickColor = optsAtIndex.tickColor;\n            const tickBorderDash = optsAtIndex.tickBorderDash || [];\n            const tickBorderDashOffset = optsAtIndex.tickBorderDashOffset;\n            lineValue = getPixelForGridLine(this, i, offset);\n            if (lineValue === undefined) {\n                continue;\n            }\n            alignedLineValue = _alignPixel(chart, lineValue, lineWidth);\n            if (isHorizontal) {\n                tx1 = tx2 = x1 = x2 = alignedLineValue;\n            } else {\n                ty1 = ty2 = y1 = y2 = alignedLineValue;\n            }\n            items.push({\n                tx1,\n                ty1,\n                tx2,\n                ty2,\n                x1,\n                y1,\n                x2,\n                y2,\n                width: lineWidth,\n                color: lineColor,\n                borderDash,\n                borderDashOffset,\n                tickWidth,\n                tickColor,\n                tickBorderDash,\n                tickBorderDashOffset\n            });\n        }\n        this._ticksLength = ticksLength;\n        this._borderValue = borderValue;\n        return items;\n    }\n _computeLabelItems(chartArea) {\n        const axis = this.axis;\n        const options = this.options;\n        const { position , ticks: optionTicks  } = options;\n        const isHorizontal = this.isHorizontal();\n        const ticks = this.ticks;\n        const { align , crossAlign , padding , mirror  } = optionTicks;\n        const tl = getTickMarkLength(options.grid);\n        const tickAndPadding = tl + padding;\n        const hTickAndPadding = mirror ? -padding : tickAndPadding;\n        const rotation = -toRadians(this.labelRotation);\n        const items = [];\n        let i, ilen, tick, label, x, y, textAlign, pixel, font, lineHeight, lineCount, textOffset;\n        let textBaseline = 'middle';\n        if (position === 'top') {\n            y = this.bottom - hTickAndPadding;\n            textAlign = this._getXAxisLabelAlignment();\n        } else if (position === 'bottom') {\n            y = this.top + hTickAndPadding;\n            textAlign = this._getXAxisLabelAlignment();\n        } else if (position === 'left') {\n            const ret = this._getYAxisLabelAlignment(tl);\n            textAlign = ret.textAlign;\n            x = ret.x;\n        } else if (position === 'right') {\n            const ret = this._getYAxisLabelAlignment(tl);\n            textAlign = ret.textAlign;\n            x = ret.x;\n        } else if (axis === 'x') {\n            if (position === 'center') {\n                y = (chartArea.top + chartArea.bottom) / 2 + tickAndPadding;\n            } else if (isObject(position)) {\n                const positionAxisID = Object.keys(position)[0];\n                const value = position[positionAxisID];\n                y = this.chart.scales[positionAxisID].getPixelForValue(value) + tickAndPadding;\n            }\n            textAlign = this._getXAxisLabelAlignment();\n        } else if (axis === 'y') {\n            if (position === 'center') {\n                x = (chartArea.left + chartArea.right) / 2 - tickAndPadding;\n            } else if (isObject(position)) {\n                const positionAxisID = Object.keys(position)[0];\n                const value = position[positionAxisID];\n                x = this.chart.scales[positionAxisID].getPixelForValue(value);\n            }\n            textAlign = this._getYAxisLabelAlignment(tl).textAlign;\n        }\n        if (axis === 'y') {\n            if (align === 'start') {\n                textBaseline = 'top';\n            } else if (align === 'end') {\n                textBaseline = 'bottom';\n            }\n        }\n        const labelSizes = this._getLabelSizes();\n        for(i = 0, ilen = ticks.length; i < ilen; ++i){\n            tick = ticks[i];\n            label = tick.label;\n            const optsAtIndex = optionTicks.setContext(this.getContext(i));\n            pixel = this.getPixelForTick(i) + optionTicks.labelOffset;\n            font = this._resolveTickFontOptions(i);\n            lineHeight = font.lineHeight;\n            lineCount = isArray(label) ? label.length : 1;\n            const halfCount = lineCount / 2;\n            const color = optsAtIndex.color;\n            const strokeColor = optsAtIndex.textStrokeColor;\n            const strokeWidth = optsAtIndex.textStrokeWidth;\n            let tickTextAlign = textAlign;\n            if (isHorizontal) {\n                x = pixel;\n                if (textAlign === 'inner') {\n                    if (i === ilen - 1) {\n                        tickTextAlign = !this.options.reverse ? 'right' : 'left';\n                    } else if (i === 0) {\n                        tickTextAlign = !this.options.reverse ? 'left' : 'right';\n                    } else {\n                        tickTextAlign = 'center';\n                    }\n                }\n                if (position === 'top') {\n                    if (crossAlign === 'near' || rotation !== 0) {\n                        textOffset = -lineCount * lineHeight + lineHeight / 2;\n                    } else if (crossAlign === 'center') {\n                        textOffset = -labelSizes.highest.height / 2 - halfCount * lineHeight + lineHeight;\n                    } else {\n                        textOffset = -labelSizes.highest.height + lineHeight / 2;\n                    }\n                } else {\n                    if (crossAlign === 'near' || rotation !== 0) {\n                        textOffset = lineHeight / 2;\n                    } else if (crossAlign === 'center') {\n                        textOffset = labelSizes.highest.height / 2 - halfCount * lineHeight;\n                    } else {\n                        textOffset = labelSizes.highest.height - lineCount * lineHeight;\n                    }\n                }\n                if (mirror) {\n                    textOffset *= -1;\n                }\n                if (rotation !== 0 && !optsAtIndex.showLabelBackdrop) {\n                    x += lineHeight / 2 * Math.sin(rotation);\n                }\n            } else {\n                y = pixel;\n                textOffset = (1 - lineCount) * lineHeight / 2;\n            }\n            let backdrop;\n            if (optsAtIndex.showLabelBackdrop) {\n                const labelPadding = toPadding(optsAtIndex.backdropPadding);\n                const height = labelSizes.heights[i];\n                const width = labelSizes.widths[i];\n                let top = textOffset - labelPadding.top;\n                let left = 0 - labelPadding.left;\n                switch(textBaseline){\n                    case 'middle':\n                        top -= height / 2;\n                        break;\n                    case 'bottom':\n                        top -= height;\n                        break;\n                }\n                switch(textAlign){\n                    case 'center':\n                        left -= width / 2;\n                        break;\n                    case 'right':\n                        left -= width;\n                        break;\n                }\n                backdrop = {\n                    left,\n                    top,\n                    width: width + labelPadding.width,\n                    height: height + labelPadding.height,\n                    color: optsAtIndex.backdropColor\n                };\n            }\n            items.push({\n                label,\n                font,\n                textOffset,\n                options: {\n                    rotation,\n                    color,\n                    strokeColor,\n                    strokeWidth,\n                    textAlign: tickTextAlign,\n                    textBaseline,\n                    translation: [\n                        x,\n                        y\n                    ],\n                    backdrop\n                }\n            });\n        }\n        return items;\n    }\n    _getXAxisLabelAlignment() {\n        const { position , ticks  } = this.options;\n        const rotation = -toRadians(this.labelRotation);\n        if (rotation) {\n            return position === 'top' ? 'left' : 'right';\n        }\n        let align = 'center';\n        if (ticks.align === 'start') {\n            align = 'left';\n        } else if (ticks.align === 'end') {\n            align = 'right';\n        } else if (ticks.align === 'inner') {\n            align = 'inner';\n        }\n        return align;\n    }\n    _getYAxisLabelAlignment(tl) {\n        const { position , ticks: { crossAlign , mirror , padding  }  } = this.options;\n        const labelSizes = this._getLabelSizes();\n        const tickAndPadding = tl + padding;\n        const widest = labelSizes.widest.width;\n        let textAlign;\n        let x;\n        if (position === 'left') {\n            if (mirror) {\n                x = this.right + padding;\n                if (crossAlign === 'near') {\n                    textAlign = 'left';\n                } else if (crossAlign === 'center') {\n                    textAlign = 'center';\n                    x += widest / 2;\n                } else {\n                    textAlign = 'right';\n                    x += widest;\n                }\n            } else {\n                x = this.right - tickAndPadding;\n                if (crossAlign === 'near') {\n                    textAlign = 'right';\n                } else if (crossAlign === 'center') {\n                    textAlign = 'center';\n                    x -= widest / 2;\n                } else {\n                    textAlign = 'left';\n                    x = this.left;\n                }\n            }\n        } else if (position === 'right') {\n            if (mirror) {\n                x = this.left + padding;\n                if (crossAlign === 'near') {\n                    textAlign = 'right';\n                } else if (crossAlign === 'center') {\n                    textAlign = 'center';\n                    x -= widest / 2;\n                } else {\n                    textAlign = 'left';\n                    x -= widest;\n                }\n            } else {\n                x = this.left + tickAndPadding;\n                if (crossAlign === 'near') {\n                    textAlign = 'left';\n                } else if (crossAlign === 'center') {\n                    textAlign = 'center';\n                    x += widest / 2;\n                } else {\n                    textAlign = 'right';\n                    x = this.right;\n                }\n            }\n        } else {\n            textAlign = 'right';\n        }\n        return {\n            textAlign,\n            x\n        };\n    }\n _computeLabelArea() {\n        if (this.options.ticks.mirror) {\n            return;\n        }\n        const chart = this.chart;\n        const position = this.options.position;\n        if (position === 'left' || position === 'right') {\n            return {\n                top: 0,\n                left: this.left,\n                bottom: chart.height,\n                right: this.right\n            };\n        }\n        if (position === 'top' || position === 'bottom') {\n            return {\n                top: this.top,\n                left: 0,\n                bottom: this.bottom,\n                right: chart.width\n            };\n        }\n    }\n drawBackground() {\n        const { ctx , options: { backgroundColor  } , left , top , width , height  } = this;\n        if (backgroundColor) {\n            ctx.save();\n            ctx.fillStyle = backgroundColor;\n            ctx.fillRect(left, top, width, height);\n            ctx.restore();\n        }\n    }\n    getLineWidthForValue(value) {\n        const grid = this.options.grid;\n        if (!this._isVisible() || !grid.display) {\n            return 0;\n        }\n        const ticks = this.ticks;\n        const index = ticks.findIndex((t)=>t.value === value);\n        if (index >= 0) {\n            const opts = grid.setContext(this.getContext(index));\n            return opts.lineWidth;\n        }\n        return 0;\n    }\n drawGrid(chartArea) {\n        const grid = this.options.grid;\n        const ctx = this.ctx;\n        const items = this._gridLineItems || (this._gridLineItems = this._computeGridLineItems(chartArea));\n        let i, ilen;\n        const drawLine = (p1, p2, style)=>{\n            if (!style.width || !style.color) {\n                return;\n            }\n            ctx.save();\n            ctx.lineWidth = style.width;\n            ctx.strokeStyle = style.color;\n            ctx.setLineDash(style.borderDash || []);\n            ctx.lineDashOffset = style.borderDashOffset;\n            ctx.beginPath();\n            ctx.moveTo(p1.x, p1.y);\n            ctx.lineTo(p2.x, p2.y);\n            ctx.stroke();\n            ctx.restore();\n        };\n        if (grid.display) {\n            for(i = 0, ilen = items.length; i < ilen; ++i){\n                const item = items[i];\n                if (grid.drawOnChartArea) {\n                    drawLine({\n                        x: item.x1,\n                        y: item.y1\n                    }, {\n                        x: item.x2,\n                        y: item.y2\n                    }, item);\n                }\n                if (grid.drawTicks) {\n                    drawLine({\n                        x: item.tx1,\n                        y: item.ty1\n                    }, {\n                        x: item.tx2,\n                        y: item.ty2\n                    }, {\n                        color: item.tickColor,\n                        width: item.tickWidth,\n                        borderDash: item.tickBorderDash,\n                        borderDashOffset: item.tickBorderDashOffset\n                    });\n                }\n            }\n        }\n    }\n drawBorder() {\n        const { chart , ctx , options: { border , grid  }  } = this;\n        const borderOpts = border.setContext(this.getContext());\n        const axisWidth = border.display ? borderOpts.width : 0;\n        if (!axisWidth) {\n            return;\n        }\n        const lastLineWidth = grid.setContext(this.getContext(0)).lineWidth;\n        const borderValue = this._borderValue;\n        let x1, x2, y1, y2;\n        if (this.isHorizontal()) {\n            x1 = _alignPixel(chart, this.left, axisWidth) - axisWidth / 2;\n            x2 = _alignPixel(chart, this.right, lastLineWidth) + lastLineWidth / 2;\n            y1 = y2 = borderValue;\n        } else {\n            y1 = _alignPixel(chart, this.top, axisWidth) - axisWidth / 2;\n            y2 = _alignPixel(chart, this.bottom, lastLineWidth) + lastLineWidth / 2;\n            x1 = x2 = borderValue;\n        }\n        ctx.save();\n        ctx.lineWidth = borderOpts.width;\n        ctx.strokeStyle = borderOpts.color;\n        ctx.beginPath();\n        ctx.moveTo(x1, y1);\n        ctx.lineTo(x2, y2);\n        ctx.stroke();\n        ctx.restore();\n    }\n drawLabels(chartArea) {\n        const optionTicks = this.options.ticks;\n        if (!optionTicks.display) {\n            return;\n        }\n        const ctx = this.ctx;\n        const area = this._computeLabelArea();\n        if (area) {\n            clipArea(ctx, area);\n        }\n        const items = this.getLabelItems(chartArea);\n        for (const item of items){\n            const renderTextOptions = item.options;\n            const tickFont = item.font;\n            const label = item.label;\n            const y = item.textOffset;\n            renderText(ctx, label, 0, y, tickFont, renderTextOptions);\n        }\n        if (area) {\n            unclipArea(ctx);\n        }\n    }\n drawTitle() {\n        const { ctx , options: { position , title , reverse  }  } = this;\n        if (!title.display) {\n            return;\n        }\n        const font = toFont(title.font);\n        const padding = toPadding(title.padding);\n        const align = title.align;\n        let offset = font.lineHeight / 2;\n        if (position === 'bottom' || position === 'center' || isObject(position)) {\n            offset += padding.bottom;\n            if (isArray(title.text)) {\n                offset += font.lineHeight * (title.text.length - 1);\n            }\n        } else {\n            offset += padding.top;\n        }\n        const { titleX , titleY , maxWidth , rotation  } = titleArgs(this, offset, position, align);\n        renderText(ctx, title.text, 0, 0, font, {\n            color: title.color,\n            maxWidth,\n            rotation,\n            textAlign: titleAlign(align, position, reverse),\n            textBaseline: 'middle',\n            translation: [\n                titleX,\n                titleY\n            ]\n        });\n    }\n    draw(chartArea) {\n        if (!this._isVisible()) {\n            return;\n        }\n        this.drawBackground();\n        this.drawGrid(chartArea);\n        this.drawBorder();\n        this.drawTitle();\n        this.drawLabels(chartArea);\n    }\n _layers() {\n        const opts = this.options;\n        const tz = opts.ticks && opts.ticks.z || 0;\n        const gz = valueOrDefault(opts.grid && opts.grid.z, -1);\n        const bz = valueOrDefault(opts.border && opts.border.z, 0);\n        if (!this._isVisible() || this.draw !== Scale.prototype.draw) {\n            return [\n                {\n                    z: tz,\n                    draw: (chartArea)=>{\n                        this.draw(chartArea);\n                    }\n                }\n            ];\n        }\n        return [\n            {\n                z: gz,\n                draw: (chartArea)=>{\n                    this.drawBackground();\n                    this.drawGrid(chartArea);\n                    this.drawTitle();\n                }\n            },\n            {\n                z: bz,\n                draw: ()=>{\n                    this.drawBorder();\n                }\n            },\n            {\n                z: tz,\n                draw: (chartArea)=>{\n                    this.drawLabels(chartArea);\n                }\n            }\n        ];\n    }\n getMatchingVisibleMetas(type) {\n        const metas = this.chart.getSortedVisibleDatasetMetas();\n        const axisID = this.axis + 'AxisID';\n        const result = [];\n        let i, ilen;\n        for(i = 0, ilen = metas.length; i < ilen; ++i){\n            const meta = metas[i];\n            if (meta[axisID] === this.id && (!type || meta.type === type)) {\n                result.push(meta);\n            }\n        }\n        return result;\n    }\n _resolveTickFontOptions(index) {\n        const opts = this.options.ticks.setContext(this.getContext(index));\n        return toFont(opts.font);\n    }\n _maxDigits() {\n        const fontSize = this._resolveTickFontOptions(0).lineHeight;\n        return (this.isHorizontal() ? this.width : this.height) / fontSize;\n    }\n}\n\nclass TypedRegistry {\n    constructor(type, scope, override){\n        this.type = type;\n        this.scope = scope;\n        this.override = override;\n        this.items = Object.create(null);\n    }\n    isForType(type) {\n        return Object.prototype.isPrototypeOf.call(this.type.prototype, type.prototype);\n    }\n register(item) {\n        const proto = Object.getPrototypeOf(item);\n        let parentScope;\n        if (isIChartComponent(proto)) {\n            parentScope = this.register(proto);\n        }\n        const items = this.items;\n        const id = item.id;\n        const scope = this.scope + '.' + id;\n        if (!id) {\n            throw new Error('class does not have id: ' + item);\n        }\n        if (id in items) {\n            return scope;\n        }\n        items[id] = item;\n        registerDefaults(item, scope, parentScope);\n        if (this.override) {\n            defaults.override(item.id, item.overrides);\n        }\n        return scope;\n    }\n get(id) {\n        return this.items[id];\n    }\n unregister(item) {\n        const items = this.items;\n        const id = item.id;\n        const scope = this.scope;\n        if (id in items) {\n            delete items[id];\n        }\n        if (scope && id in defaults[scope]) {\n            delete defaults[scope][id];\n            if (this.override) {\n                delete overrides[id];\n            }\n        }\n    }\n}\nfunction registerDefaults(item, scope, parentScope) {\n    const itemDefaults = merge(Object.create(null), [\n        parentScope ? defaults.get(parentScope) : {},\n        defaults.get(scope),\n        item.defaults\n    ]);\n    defaults.set(scope, itemDefaults);\n    if (item.defaultRoutes) {\n        routeDefaults(scope, item.defaultRoutes);\n    }\n    if (item.descriptors) {\n        defaults.describe(scope, item.descriptors);\n    }\n}\nfunction routeDefaults(scope, routes) {\n    Object.keys(routes).forEach((property)=>{\n        const propertyParts = property.split('.');\n        const sourceName = propertyParts.pop();\n        const sourceScope = [\n            scope\n        ].concat(propertyParts).join('.');\n        const parts = routes[property].split('.');\n        const targetName = parts.pop();\n        const targetScope = parts.join('.');\n        defaults.route(sourceScope, sourceName, targetScope, targetName);\n    });\n}\nfunction isIChartComponent(proto) {\n    return 'id' in proto && 'defaults' in proto;\n}\n\nclass Registry {\n    constructor(){\n        this.controllers = new TypedRegistry(DatasetController, 'datasets', true);\n        this.elements = new TypedRegistry(Element, 'elements');\n        this.plugins = new TypedRegistry(Object, 'plugins');\n        this.scales = new TypedRegistry(Scale, 'scales');\n        this._typedRegistries = [\n            this.controllers,\n            this.scales,\n            this.elements\n        ];\n    }\n add(...args) {\n        this._each('register', args);\n    }\n    remove(...args) {\n        this._each('unregister', args);\n    }\n addControllers(...args) {\n        this._each('register', args, this.controllers);\n    }\n addElements(...args) {\n        this._each('register', args, this.elements);\n    }\n addPlugins(...args) {\n        this._each('register', args, this.plugins);\n    }\n addScales(...args) {\n        this._each('register', args, this.scales);\n    }\n getController(id) {\n        return this._get(id, this.controllers, 'controller');\n    }\n getElement(id) {\n        return this._get(id, this.elements, 'element');\n    }\n getPlugin(id) {\n        return this._get(id, this.plugins, 'plugin');\n    }\n getScale(id) {\n        return this._get(id, this.scales, 'scale');\n    }\n removeControllers(...args) {\n        this._each('unregister', args, this.controllers);\n    }\n removeElements(...args) {\n        this._each('unregister', args, this.elements);\n    }\n removePlugins(...args) {\n        this._each('unregister', args, this.plugins);\n    }\n removeScales(...args) {\n        this._each('unregister', args, this.scales);\n    }\n _each(method, args, typedRegistry) {\n        [\n            ...args\n        ].forEach((arg)=>{\n            const reg = typedRegistry || this._getRegistryForType(arg);\n            if (typedRegistry || reg.isForType(arg) || reg === this.plugins && arg.id) {\n                this._exec(method, reg, arg);\n            } else {\n                each(arg, (item)=>{\n                    const itemReg = typedRegistry || this._getRegistryForType(item);\n                    this._exec(method, itemReg, item);\n                });\n            }\n        });\n    }\n _exec(method, registry, component) {\n        const camelMethod = _capitalize(method);\n        callback(component['before' + camelMethod], [], component);\n        registry[method](component);\n        callback(component['after' + camelMethod], [], component);\n    }\n _getRegistryForType(type) {\n        for(let i = 0; i < this._typedRegistries.length; i++){\n            const reg = this._typedRegistries[i];\n            if (reg.isForType(type)) {\n                return reg;\n            }\n        }\n        return this.plugins;\n    }\n _get(id, typedRegistry, type) {\n        const item = typedRegistry.get(id);\n        if (item === undefined) {\n            throw new Error('\"' + id + '\" is not a registered ' + type + '.');\n        }\n        return item;\n    }\n}\nvar registry = /* #__PURE__ */ new Registry();\n\nclass PluginService {\n    constructor(){\n        this._init = [];\n    }\n notify(chart, hook, args, filter) {\n        if (hook === 'beforeInit') {\n            this._init = this._createDescriptors(chart, true);\n            this._notify(this._init, chart, 'install');\n        }\n        const descriptors = filter ? this._descriptors(chart).filter(filter) : this._descriptors(chart);\n        const result = this._notify(descriptors, chart, hook, args);\n        if (hook === 'afterDestroy') {\n            this._notify(descriptors, chart, 'stop');\n            this._notify(this._init, chart, 'uninstall');\n        }\n        return result;\n    }\n _notify(descriptors, chart, hook, args) {\n        args = args || {};\n        for (const descriptor of descriptors){\n            const plugin = descriptor.plugin;\n            const method = plugin[hook];\n            const params = [\n                chart,\n                args,\n                descriptor.options\n            ];\n            if (callback(method, params, plugin) === false && args.cancelable) {\n                return false;\n            }\n        }\n        return true;\n    }\n    invalidate() {\n        if (!isNullOrUndef(this._cache)) {\n            this._oldCache = this._cache;\n            this._cache = undefined;\n        }\n    }\n _descriptors(chart) {\n        if (this._cache) {\n            return this._cache;\n        }\n        const descriptors = this._cache = this._createDescriptors(chart);\n        this._notifyStateChanges(chart);\n        return descriptors;\n    }\n    _createDescriptors(chart, all) {\n        const config = chart && chart.config;\n        const options = valueOrDefault(config.options && config.options.plugins, {});\n        const plugins = allPlugins(config);\n        return options === false && !all ? [] : createDescriptors(chart, plugins, options, all);\n    }\n _notifyStateChanges(chart) {\n        const previousDescriptors = this._oldCache || [];\n        const descriptors = this._cache;\n        const diff = (a, b)=>a.filter((x)=>!b.some((y)=>x.plugin.id === y.plugin.id));\n        this._notify(diff(previousDescriptors, descriptors), chart, 'stop');\n        this._notify(diff(descriptors, previousDescriptors), chart, 'start');\n    }\n}\n function allPlugins(config) {\n    const localIds = {};\n    const plugins = [];\n    const keys = Object.keys(registry.plugins.items);\n    for(let i = 0; i < keys.length; i++){\n        plugins.push(registry.getPlugin(keys[i]));\n    }\n    const local = config.plugins || [];\n    for(let i = 0; i < local.length; i++){\n        const plugin = local[i];\n        if (plugins.indexOf(plugin) === -1) {\n            plugins.push(plugin);\n            localIds[plugin.id] = true;\n        }\n    }\n    return {\n        plugins,\n        localIds\n    };\n}\nfunction getOpts(options, all) {\n    if (!all && options === false) {\n        return null;\n    }\n    if (options === true) {\n        return {};\n    }\n    return options;\n}\nfunction createDescriptors(chart, { plugins , localIds  }, options, all) {\n    const result = [];\n    const context = chart.getContext();\n    for (const plugin of plugins){\n        const id = plugin.id;\n        const opts = getOpts(options[id], all);\n        if (opts === null) {\n            continue;\n        }\n        result.push({\n            plugin,\n            options: pluginOpts(chart.config, {\n                plugin,\n                local: localIds[id]\n            }, opts, context)\n        });\n    }\n    return result;\n}\nfunction pluginOpts(config, { plugin , local  }, opts, context) {\n    const keys = config.pluginScopeKeys(plugin);\n    const scopes = config.getOptionScopes(opts, keys);\n    if (local && plugin.defaults) {\n        scopes.push(plugin.defaults);\n    }\n    return config.createResolver(scopes, context, [\n        ''\n    ], {\n        scriptable: false,\n        indexable: false,\n        allKeys: true\n    });\n}\n\nfunction getIndexAxis(type, options) {\n    const datasetDefaults = defaults.datasets[type] || {};\n    const datasetOptions = (options.datasets || {})[type] || {};\n    return datasetOptions.indexAxis || options.indexAxis || datasetDefaults.indexAxis || 'x';\n}\nfunction getAxisFromDefaultScaleID(id, indexAxis) {\n    let axis = id;\n    if (id === '_index_') {\n        axis = indexAxis;\n    } else if (id === '_value_') {\n        axis = indexAxis === 'x' ? 'y' : 'x';\n    }\n    return axis;\n}\nfunction getDefaultScaleIDFromAxis(axis, indexAxis) {\n    return axis === indexAxis ? '_index_' : '_value_';\n}\nfunction idMatchesAxis(id) {\n    if (id === 'x' || id === 'y' || id === 'r') {\n        return id;\n    }\n}\nfunction axisFromPosition(position) {\n    if (position === 'top' || position === 'bottom') {\n        return 'x';\n    }\n    if (position === 'left' || position === 'right') {\n        return 'y';\n    }\n}\nfunction determineAxis(id, ...scaleOptions) {\n    if (idMatchesAxis(id)) {\n        return id;\n    }\n    for (const opts of scaleOptions){\n        const axis = opts.axis || axisFromPosition(opts.position) || id.length > 1 && idMatchesAxis(id[0].toLowerCase());\n        if (axis) {\n            return axis;\n        }\n    }\n    throw new Error(`Cannot determine type of '${id}' axis. Please provide 'axis' or 'position' option.`);\n}\nfunction getAxisFromDataset(id, axis, dataset) {\n    if (dataset[axis + 'AxisID'] === id) {\n        return {\n            axis\n        };\n    }\n}\nfunction retrieveAxisFromDatasets(id, config) {\n    if (config.data && config.data.datasets) {\n        const boundDs = config.data.datasets.filter((d)=>d.xAxisID === id || d.yAxisID === id);\n        if (boundDs.length) {\n            return getAxisFromDataset(id, 'x', boundDs[0]) || getAxisFromDataset(id, 'y', boundDs[0]);\n        }\n    }\n    return {};\n}\nfunction mergeScaleConfig(config, options) {\n    const chartDefaults = overrides[config.type] || {\n        scales: {}\n    };\n    const configScales = options.scales || {};\n    const chartIndexAxis = getIndexAxis(config.type, options);\n    const scales = Object.create(null);\n    Object.keys(configScales).forEach((id)=>{\n        const scaleConf = configScales[id];\n        if (!isObject(scaleConf)) {\n            return console.error(`Invalid scale configuration for scale: ${id}`);\n        }\n        if (scaleConf._proxy) {\n            return console.warn(`Ignoring resolver passed as options for scale: ${id}`);\n        }\n        const axis = determineAxis(id, scaleConf, retrieveAxisFromDatasets(id, config), defaults.scales[scaleConf.type]);\n        const defaultId = getDefaultScaleIDFromAxis(axis, chartIndexAxis);\n        const defaultScaleOptions = chartDefaults.scales || {};\n        scales[id] = mergeIf(Object.create(null), [\n            {\n                axis\n            },\n            scaleConf,\n            defaultScaleOptions[axis],\n            defaultScaleOptions[defaultId]\n        ]);\n    });\n    config.data.datasets.forEach((dataset)=>{\n        const type = dataset.type || config.type;\n        const indexAxis = dataset.indexAxis || getIndexAxis(type, options);\n        const datasetDefaults = overrides[type] || {};\n        const defaultScaleOptions = datasetDefaults.scales || {};\n        Object.keys(defaultScaleOptions).forEach((defaultID)=>{\n            const axis = getAxisFromDefaultScaleID(defaultID, indexAxis);\n            const id = dataset[axis + 'AxisID'] || axis;\n            scales[id] = scales[id] || Object.create(null);\n            mergeIf(scales[id], [\n                {\n                    axis\n                },\n                configScales[id],\n                defaultScaleOptions[defaultID]\n            ]);\n        });\n    });\n    Object.keys(scales).forEach((key)=>{\n        const scale = scales[key];\n        mergeIf(scale, [\n            defaults.scales[scale.type],\n            defaults.scale\n        ]);\n    });\n    return scales;\n}\nfunction initOptions(config) {\n    const options = config.options || (config.options = {});\n    options.plugins = valueOrDefault(options.plugins, {});\n    options.scales = mergeScaleConfig(config, options);\n}\nfunction initData(data) {\n    data = data || {};\n    data.datasets = data.datasets || [];\n    data.labels = data.labels || [];\n    return data;\n}\nfunction initConfig(config) {\n    config = config || {};\n    config.data = initData(config.data);\n    initOptions(config);\n    return config;\n}\nconst keyCache = new Map();\nconst keysCached = new Set();\nfunction cachedKeys(cacheKey, generate) {\n    let keys = keyCache.get(cacheKey);\n    if (!keys) {\n        keys = generate();\n        keyCache.set(cacheKey, keys);\n        keysCached.add(keys);\n    }\n    return keys;\n}\nconst addIfFound = (set, obj, key)=>{\n    const opts = resolveObjectKey(obj, key);\n    if (opts !== undefined) {\n        set.add(opts);\n    }\n};\nclass Config {\n    constructor(config){\n        this._config = initConfig(config);\n        this._scopeCache = new Map();\n        this._resolverCache = new Map();\n    }\n    get platform() {\n        return this._config.platform;\n    }\n    get type() {\n        return this._config.type;\n    }\n    set type(type) {\n        this._config.type = type;\n    }\n    get data() {\n        return this._config.data;\n    }\n    set data(data) {\n        this._config.data = initData(data);\n    }\n    get options() {\n        return this._config.options;\n    }\n    set options(options) {\n        this._config.options = options;\n    }\n    get plugins() {\n        return this._config.plugins;\n    }\n    update() {\n        const config = this._config;\n        this.clearCache();\n        initOptions(config);\n    }\n    clearCache() {\n        this._scopeCache.clear();\n        this._resolverCache.clear();\n    }\n datasetScopeKeys(datasetType) {\n        return cachedKeys(datasetType, ()=>[\n                [\n                    `datasets.${datasetType}`,\n                    ''\n                ]\n            ]);\n    }\n datasetAnimationScopeKeys(datasetType, transition) {\n        return cachedKeys(`${datasetType}.transition.${transition}`, ()=>[\n                [\n                    `datasets.${datasetType}.transitions.${transition}`,\n                    `transitions.${transition}`\n                ],\n                [\n                    `datasets.${datasetType}`,\n                    ''\n                ]\n            ]);\n    }\n datasetElementScopeKeys(datasetType, elementType) {\n        return cachedKeys(`${datasetType}-${elementType}`, ()=>[\n                [\n                    `datasets.${datasetType}.elements.${elementType}`,\n                    `datasets.${datasetType}`,\n                    `elements.${elementType}`,\n                    ''\n                ]\n            ]);\n    }\n pluginScopeKeys(plugin) {\n        const id = plugin.id;\n        const type = this.type;\n        return cachedKeys(`${type}-plugin-${id}`, ()=>[\n                [\n                    `plugins.${id}`,\n                    ...plugin.additionalOptionScopes || []\n                ]\n            ]);\n    }\n _cachedScopes(mainScope, resetCache) {\n        const _scopeCache = this._scopeCache;\n        let cache = _scopeCache.get(mainScope);\n        if (!cache || resetCache) {\n            cache = new Map();\n            _scopeCache.set(mainScope, cache);\n        }\n        return cache;\n    }\n getOptionScopes(mainScope, keyLists, resetCache) {\n        const { options , type  } = this;\n        const cache = this._cachedScopes(mainScope, resetCache);\n        const cached = cache.get(keyLists);\n        if (cached) {\n            return cached;\n        }\n        const scopes = new Set();\n        keyLists.forEach((keys)=>{\n            if (mainScope) {\n                scopes.add(mainScope);\n                keys.forEach((key)=>addIfFound(scopes, mainScope, key));\n            }\n            keys.forEach((key)=>addIfFound(scopes, options, key));\n            keys.forEach((key)=>addIfFound(scopes, overrides[type] || {}, key));\n            keys.forEach((key)=>addIfFound(scopes, defaults, key));\n            keys.forEach((key)=>addIfFound(scopes, descriptors, key));\n        });\n        const array = Array.from(scopes);\n        if (array.length === 0) {\n            array.push(Object.create(null));\n        }\n        if (keysCached.has(keyLists)) {\n            cache.set(keyLists, array);\n        }\n        return array;\n    }\n chartOptionScopes() {\n        const { options , type  } = this;\n        return [\n            options,\n            overrides[type] || {},\n            defaults.datasets[type] || {},\n            {\n                type\n            },\n            defaults,\n            descriptors\n        ];\n    }\n resolveNamedOptions(scopes, names, context, prefixes = [\n        ''\n    ]) {\n        const result = {\n            $shared: true\n        };\n        const { resolver , subPrefixes  } = getResolver(this._resolverCache, scopes, prefixes);\n        let options = resolver;\n        if (needContext(resolver, names)) {\n            result.$shared = false;\n            context = isFunction(context) ? context() : context;\n            const subResolver = this.createResolver(scopes, context, subPrefixes);\n            options = _attachContext(resolver, context, subResolver);\n        }\n        for (const prop of names){\n            result[prop] = options[prop];\n        }\n        return result;\n    }\n createResolver(scopes, context, prefixes = [\n        ''\n    ], descriptorDefaults) {\n        const { resolver  } = getResolver(this._resolverCache, scopes, prefixes);\n        return isObject(context) ? _attachContext(resolver, context, undefined, descriptorDefaults) : resolver;\n    }\n}\nfunction getResolver(resolverCache, scopes, prefixes) {\n    let cache = resolverCache.get(scopes);\n    if (!cache) {\n        cache = new Map();\n        resolverCache.set(scopes, cache);\n    }\n    const cacheKey = prefixes.join();\n    let cached = cache.get(cacheKey);\n    if (!cached) {\n        const resolver = _createResolver(scopes, prefixes);\n        cached = {\n            resolver,\n            subPrefixes: prefixes.filter((p)=>!p.toLowerCase().includes('hover'))\n        };\n        cache.set(cacheKey, cached);\n    }\n    return cached;\n}\nconst hasFunction = (value)=>isObject(value) && Object.getOwnPropertyNames(value).reduce((acc, key)=>acc || isFunction(value[key]), false);\nfunction needContext(proxy, names) {\n    const { isScriptable , isIndexable  } = _descriptors(proxy);\n    for (const prop of names){\n        const scriptable = isScriptable(prop);\n        const indexable = isIndexable(prop);\n        const value = (indexable || scriptable) && proxy[prop];\n        if (scriptable && (isFunction(value) || hasFunction(value)) || indexable && isArray(value)) {\n            return true;\n        }\n    }\n    return false;\n}\n\nvar version = \"4.3.0\";\n\nconst KNOWN_POSITIONS = [\n    'top',\n    'bottom',\n    'left',\n    'right',\n    'chartArea'\n];\nfunction positionIsHorizontal(position, axis) {\n    return position === 'top' || position === 'bottom' || KNOWN_POSITIONS.indexOf(position) === -1 && axis === 'x';\n}\nfunction compare2Level(l1, l2) {\n    return function(a, b) {\n        return a[l1] === b[l1] ? a[l2] - b[l2] : a[l1] - b[l1];\n    };\n}\nfunction onAnimationsComplete(context) {\n    const chart = context.chart;\n    const animationOptions = chart.options.animation;\n    chart.notifyPlugins('afterRender');\n    callback(animationOptions && animationOptions.onComplete, [\n        context\n    ], chart);\n}\nfunction onAnimationProgress(context) {\n    const chart = context.chart;\n    const animationOptions = chart.options.animation;\n    callback(animationOptions && animationOptions.onProgress, [\n        context\n    ], chart);\n}\n function getCanvas(item) {\n    if (_isDomSupported() && typeof item === 'string') {\n        item = document.getElementById(item);\n    } else if (item && item.length) {\n        item = item[0];\n    }\n    if (item && item.canvas) {\n        item = item.canvas;\n    }\n    return item;\n}\nconst instances = {};\nconst getChart = (key)=>{\n    const canvas = getCanvas(key);\n    return Object.values(instances).filter((c)=>c.canvas === canvas).pop();\n};\nfunction moveNumericKeys(obj, start, move) {\n    const keys = Object.keys(obj);\n    for (const key of keys){\n        const intKey = +key;\n        if (intKey >= start) {\n            const value = obj[key];\n            delete obj[key];\n            if (move > 0 || intKey > start) {\n                obj[intKey + move] = value;\n            }\n        }\n    }\n}\n function determineLastEvent(e, lastEvent, inChartArea, isClick) {\n    if (!inChartArea || e.type === 'mouseout') {\n        return null;\n    }\n    if (isClick) {\n        return lastEvent;\n    }\n    return e;\n}\nfunction getDatasetArea(meta) {\n    const { xScale , yScale  } = meta;\n    if (xScale && yScale) {\n        return {\n            left: xScale.left,\n            right: xScale.right,\n            top: yScale.top,\n            bottom: yScale.bottom\n        };\n    }\n}\nclass Chart {\n    static defaults = defaults;\n    static instances = instances;\n    static overrides = overrides;\n    static registry = registry;\n    static version = version;\n    static getChart = getChart;\n    static register(...items) {\n        registry.add(...items);\n        invalidatePlugins();\n    }\n    static unregister(...items) {\n        registry.remove(...items);\n        invalidatePlugins();\n    }\n    constructor(item, userConfig){\n        const config = this.config = new Config(userConfig);\n        const initialCanvas = getCanvas(item);\n        const existingChart = getChart(initialCanvas);\n        if (existingChart) {\n            throw new Error('Canvas is already in use. Chart with ID \\'' + existingChart.id + '\\'' + ' must be destroyed before the canvas with ID \\'' + existingChart.canvas.id + '\\' can be reused.');\n        }\n        const options = config.createResolver(config.chartOptionScopes(), this.getContext());\n        this.platform = new (config.platform || _detectPlatform(initialCanvas))();\n        this.platform.updateConfig(config);\n        const context = this.platform.acquireContext(initialCanvas, options.aspectRatio);\n        const canvas = context && context.canvas;\n        const height = canvas && canvas.height;\n        const width = canvas && canvas.width;\n        this.id = uid();\n        this.ctx = context;\n        this.canvas = canvas;\n        this.width = width;\n        this.height = height;\n        this._options = options;\n        this._aspectRatio = this.aspectRatio;\n        this._layers = [];\n        this._metasets = [];\n        this._stacks = undefined;\n        this.boxes = [];\n        this.currentDevicePixelRatio = undefined;\n        this.chartArea = undefined;\n        this._active = [];\n        this._lastEvent = undefined;\n        this._listeners = {};\n         this._responsiveListeners = undefined;\n        this._sortedMetasets = [];\n        this.scales = {};\n        this._plugins = new PluginService();\n        this.$proxies = {};\n        this._hiddenIndices = {};\n        this.attached = false;\n        this._animationsDisabled = undefined;\n        this.$context = undefined;\n        this._doResize = debounce((mode)=>this.update(mode), options.resizeDelay || 0);\n        this._dataChanges = [];\n        instances[this.id] = this;\n        if (!context || !canvas) {\n            console.error(\"Failed to create chart: can't acquire context from the given item\");\n            return;\n        }\n        animator.listen(this, 'complete', onAnimationsComplete);\n        animator.listen(this, 'progress', onAnimationProgress);\n        this._initialize();\n        if (this.attached) {\n            this.update();\n        }\n    }\n    get aspectRatio() {\n        const { options: { aspectRatio , maintainAspectRatio  } , width , height , _aspectRatio  } = this;\n        if (!isNullOrUndef(aspectRatio)) {\n            return aspectRatio;\n        }\n        if (maintainAspectRatio && _aspectRatio) {\n            return _aspectRatio;\n        }\n        return height ? width / height : null;\n    }\n    get data() {\n        return this.config.data;\n    }\n    set data(data) {\n        this.config.data = data;\n    }\n    get options() {\n        return this._options;\n    }\n    set options(options) {\n        this.config.options = options;\n    }\n    get registry() {\n        return registry;\n    }\n _initialize() {\n        this.notifyPlugins('beforeInit');\n        if (this.options.responsive) {\n            this.resize();\n        } else {\n            retinaScale(this, this.options.devicePixelRatio);\n        }\n        this.bindEvents();\n        this.notifyPlugins('afterInit');\n        return this;\n    }\n    clear() {\n        clearCanvas(this.canvas, this.ctx);\n        return this;\n    }\n    stop() {\n        animator.stop(this);\n        return this;\n    }\n resize(width, height) {\n        if (!animator.running(this)) {\n            this._resize(width, height);\n        } else {\n            this._resizeBeforeDraw = {\n                width,\n                height\n            };\n        }\n    }\n    _resize(width, height) {\n        const options = this.options;\n        const canvas = this.canvas;\n        const aspectRatio = options.maintainAspectRatio && this.aspectRatio;\n        const newSize = this.platform.getMaximumSize(canvas, width, height, aspectRatio);\n        const newRatio = options.devicePixelRatio || this.platform.getDevicePixelRatio();\n        const mode = this.width ? 'resize' : 'attach';\n        this.width = newSize.width;\n        this.height = newSize.height;\n        this._aspectRatio = this.aspectRatio;\n        if (!retinaScale(this, newRatio, true)) {\n            return;\n        }\n        this.notifyPlugins('resize', {\n            size: newSize\n        });\n        callback(options.onResize, [\n            this,\n            newSize\n        ], this);\n        if (this.attached) {\n            if (this._doResize(mode)) {\n                this.render();\n            }\n        }\n    }\n    ensureScalesHaveIDs() {\n        const options = this.options;\n        const scalesOptions = options.scales || {};\n        each(scalesOptions, (axisOptions, axisID)=>{\n            axisOptions.id = axisID;\n        });\n    }\n buildOrUpdateScales() {\n        const options = this.options;\n        const scaleOpts = options.scales;\n        const scales = this.scales;\n        const updated = Object.keys(scales).reduce((obj, id)=>{\n            obj[id] = false;\n            return obj;\n        }, {});\n        let items = [];\n        if (scaleOpts) {\n            items = items.concat(Object.keys(scaleOpts).map((id)=>{\n                const scaleOptions = scaleOpts[id];\n                const axis = determineAxis(id, scaleOptions);\n                const isRadial = axis === 'r';\n                const isHorizontal = axis === 'x';\n                return {\n                    options: scaleOptions,\n                    dposition: isRadial ? 'chartArea' : isHorizontal ? 'bottom' : 'left',\n                    dtype: isRadial ? 'radialLinear' : isHorizontal ? 'category' : 'linear'\n                };\n            }));\n        }\n        each(items, (item)=>{\n            const scaleOptions = item.options;\n            const id = scaleOptions.id;\n            const axis = determineAxis(id, scaleOptions);\n            const scaleType = valueOrDefault(scaleOptions.type, item.dtype);\n            if (scaleOptions.position === undefined || positionIsHorizontal(scaleOptions.position, axis) !== positionIsHorizontal(item.dposition)) {\n                scaleOptions.position = item.dposition;\n            }\n            updated[id] = true;\n            let scale = null;\n            if (id in scales && scales[id].type === scaleType) {\n                scale = scales[id];\n            } else {\n                const scaleClass = registry.getScale(scaleType);\n                scale = new scaleClass({\n                    id,\n                    type: scaleType,\n                    ctx: this.ctx,\n                    chart: this\n                });\n                scales[scale.id] = scale;\n            }\n            scale.init(scaleOptions, options);\n        });\n        each(updated, (hasUpdated, id)=>{\n            if (!hasUpdated) {\n                delete scales[id];\n            }\n        });\n        each(scales, (scale)=>{\n            layouts.configure(this, scale, scale.options);\n            layouts.addBox(this, scale);\n        });\n    }\n _updateMetasets() {\n        const metasets = this._metasets;\n        const numData = this.data.datasets.length;\n        const numMeta = metasets.length;\n        metasets.sort((a, b)=>a.index - b.index);\n        if (numMeta > numData) {\n            for(let i = numData; i < numMeta; ++i){\n                this._destroyDatasetMeta(i);\n            }\n            metasets.splice(numData, numMeta - numData);\n        }\n        this._sortedMetasets = metasets.slice(0).sort(compare2Level('order', 'index'));\n    }\n _removeUnreferencedMetasets() {\n        const { _metasets: metasets , data: { datasets  }  } = this;\n        if (metasets.length > datasets.length) {\n            delete this._stacks;\n        }\n        metasets.forEach((meta, index)=>{\n            if (datasets.filter((x)=>x === meta._dataset).length === 0) {\n                this._destroyDatasetMeta(index);\n            }\n        });\n    }\n    buildOrUpdateControllers() {\n        const newControllers = [];\n        const datasets = this.data.datasets;\n        let i, ilen;\n        this._removeUnreferencedMetasets();\n        for(i = 0, ilen = datasets.length; i < ilen; i++){\n            const dataset = datasets[i];\n            let meta = this.getDatasetMeta(i);\n            const type = dataset.type || this.config.type;\n            if (meta.type && meta.type !== type) {\n                this._destroyDatasetMeta(i);\n                meta = this.getDatasetMeta(i);\n            }\n            meta.type = type;\n            meta.indexAxis = dataset.indexAxis || getIndexAxis(type, this.options);\n            meta.order = dataset.order || 0;\n            meta.index = i;\n            meta.label = '' + dataset.label;\n            meta.visible = this.isDatasetVisible(i);\n            if (meta.controller) {\n                meta.controller.updateIndex(i);\n                meta.controller.linkScales();\n            } else {\n                const ControllerClass = registry.getController(type);\n                const { datasetElementType , dataElementType  } = defaults.datasets[type];\n                Object.assign(ControllerClass, {\n                    dataElementType: registry.getElement(dataElementType),\n                    datasetElementType: datasetElementType && registry.getElement(datasetElementType)\n                });\n                meta.controller = new ControllerClass(this, i);\n                newControllers.push(meta.controller);\n            }\n        }\n        this._updateMetasets();\n        return newControllers;\n    }\n _resetElements() {\n        each(this.data.datasets, (dataset, datasetIndex)=>{\n            this.getDatasetMeta(datasetIndex).controller.reset();\n        }, this);\n    }\n reset() {\n        this._resetElements();\n        this.notifyPlugins('reset');\n    }\n    update(mode) {\n        const config = this.config;\n        config.update();\n        const options = this._options = config.createResolver(config.chartOptionScopes(), this.getContext());\n        const animsDisabled = this._animationsDisabled = !options.animation;\n        this._updateScales();\n        this._checkEventBindings();\n        this._updateHiddenIndices();\n        this._plugins.invalidate();\n        if (this.notifyPlugins('beforeUpdate', {\n            mode,\n            cancelable: true\n        }) === false) {\n            return;\n        }\n        const newControllers = this.buildOrUpdateControllers();\n        this.notifyPlugins('beforeElementsUpdate');\n        let minPadding = 0;\n        for(let i = 0, ilen = this.data.datasets.length; i < ilen; i++){\n            const { controller  } = this.getDatasetMeta(i);\n            const reset = !animsDisabled && newControllers.indexOf(controller) === -1;\n            controller.buildOrUpdateElements(reset);\n            minPadding = Math.max(+controller.getMaxOverflow(), minPadding);\n        }\n        minPadding = this._minPadding = options.layout.autoPadding ? minPadding : 0;\n        this._updateLayout(minPadding);\n        if (!animsDisabled) {\n            each(newControllers, (controller)=>{\n                controller.reset();\n            });\n        }\n        this._updateDatasets(mode);\n        this.notifyPlugins('afterUpdate', {\n            mode\n        });\n        this._layers.sort(compare2Level('z', '_idx'));\n        const { _active , _lastEvent  } = this;\n        if (_lastEvent) {\n            this._eventHandler(_lastEvent, true);\n        } else if (_active.length) {\n            this._updateHoverStyles(_active, _active, true);\n        }\n        this.render();\n    }\n _updateScales() {\n        each(this.scales, (scale)=>{\n            layouts.removeBox(this, scale);\n        });\n        this.ensureScalesHaveIDs();\n        this.buildOrUpdateScales();\n    }\n _checkEventBindings() {\n        const options = this.options;\n        const existingEvents = new Set(Object.keys(this._listeners));\n        const newEvents = new Set(options.events);\n        if (!setsEqual(existingEvents, newEvents) || !!this._responsiveListeners !== options.responsive) {\n            this.unbindEvents();\n            this.bindEvents();\n        }\n    }\n _updateHiddenIndices() {\n        const { _hiddenIndices  } = this;\n        const changes = this._getUniformDataChanges() || [];\n        for (const { method , start , count  } of changes){\n            const move = method === '_removeElements' ? -count : count;\n            moveNumericKeys(_hiddenIndices, start, move);\n        }\n    }\n _getUniformDataChanges() {\n        const _dataChanges = this._dataChanges;\n        if (!_dataChanges || !_dataChanges.length) {\n            return;\n        }\n        this._dataChanges = [];\n        const datasetCount = this.data.datasets.length;\n        const makeSet = (idx)=>new Set(_dataChanges.filter((c)=>c[0] === idx).map((c, i)=>i + ',' + c.splice(1).join(',')));\n        const changeSet = makeSet(0);\n        for(let i = 1; i < datasetCount; i++){\n            if (!setsEqual(changeSet, makeSet(i))) {\n                return;\n            }\n        }\n        return Array.from(changeSet).map((c)=>c.split(',')).map((a)=>({\n                method: a[1],\n                start: +a[2],\n                count: +a[3]\n            }));\n    }\n _updateLayout(minPadding) {\n        if (this.notifyPlugins('beforeLayout', {\n            cancelable: true\n        }) === false) {\n            return;\n        }\n        layouts.update(this, this.width, this.height, minPadding);\n        const area = this.chartArea;\n        const noArea = area.width <= 0 || area.height <= 0;\n        this._layers = [];\n        each(this.boxes, (box)=>{\n            if (noArea && box.position === 'chartArea') {\n                return;\n            }\n            if (box.configure) {\n                box.configure();\n            }\n            this._layers.push(...box._layers());\n        }, this);\n        this._layers.forEach((item, index)=>{\n            item._idx = index;\n        });\n        this.notifyPlugins('afterLayout');\n    }\n _updateDatasets(mode) {\n        if (this.notifyPlugins('beforeDatasetsUpdate', {\n            mode,\n            cancelable: true\n        }) === false) {\n            return;\n        }\n        for(let i = 0, ilen = this.data.datasets.length; i < ilen; ++i){\n            this.getDatasetMeta(i).controller.configure();\n        }\n        for(let i = 0, ilen = this.data.datasets.length; i < ilen; ++i){\n            this._updateDataset(i, isFunction(mode) ? mode({\n                datasetIndex: i\n            }) : mode);\n        }\n        this.notifyPlugins('afterDatasetsUpdate', {\n            mode\n        });\n    }\n _updateDataset(index, mode) {\n        const meta = this.getDatasetMeta(index);\n        const args = {\n            meta,\n            index,\n            mode,\n            cancelable: true\n        };\n        if (this.notifyPlugins('beforeDatasetUpdate', args) === false) {\n            return;\n        }\n        meta.controller._update(mode);\n        args.cancelable = false;\n        this.notifyPlugins('afterDatasetUpdate', args);\n    }\n    render() {\n        if (this.notifyPlugins('beforeRender', {\n            cancelable: true\n        }) === false) {\n            return;\n        }\n        if (animator.has(this)) {\n            if (this.attached && !animator.running(this)) {\n                animator.start(this);\n            }\n        } else {\n            this.draw();\n            onAnimationsComplete({\n                chart: this\n            });\n        }\n    }\n    draw() {\n        let i;\n        if (this._resizeBeforeDraw) {\n            const { width , height  } = this._resizeBeforeDraw;\n            this._resize(width, height);\n            this._resizeBeforeDraw = null;\n        }\n        this.clear();\n        if (this.width <= 0 || this.height <= 0) {\n            return;\n        }\n        if (this.notifyPlugins('beforeDraw', {\n            cancelable: true\n        }) === false) {\n            return;\n        }\n        const layers = this._layers;\n        for(i = 0; i < layers.length && layers[i].z <= 0; ++i){\n            layers[i].draw(this.chartArea);\n        }\n        this._drawDatasets();\n        for(; i < layers.length; ++i){\n            layers[i].draw(this.chartArea);\n        }\n        this.notifyPlugins('afterDraw');\n    }\n _getSortedDatasetMetas(filterVisible) {\n        const metasets = this._sortedMetasets;\n        const result = [];\n        let i, ilen;\n        for(i = 0, ilen = metasets.length; i < ilen; ++i){\n            const meta = metasets[i];\n            if (!filterVisible || meta.visible) {\n                result.push(meta);\n            }\n        }\n        return result;\n    }\n getSortedVisibleDatasetMetas() {\n        return this._getSortedDatasetMetas(true);\n    }\n _drawDatasets() {\n        if (this.notifyPlugins('beforeDatasetsDraw', {\n            cancelable: true\n        }) === false) {\n            return;\n        }\n        const metasets = this.getSortedVisibleDatasetMetas();\n        for(let i = metasets.length - 1; i >= 0; --i){\n            this._drawDataset(metasets[i]);\n        }\n        this.notifyPlugins('afterDatasetsDraw');\n    }\n _drawDataset(meta) {\n        const ctx = this.ctx;\n        const clip = meta._clip;\n        const useClip = !clip.disabled;\n        const area = getDatasetArea(meta) || this.chartArea;\n        const args = {\n            meta,\n            index: meta.index,\n            cancelable: true\n        };\n        if (this.notifyPlugins('beforeDatasetDraw', args) === false) {\n            return;\n        }\n        if (useClip) {\n            clipArea(ctx, {\n                left: clip.left === false ? 0 : area.left - clip.left,\n                right: clip.right === false ? this.width : area.right + clip.right,\n                top: clip.top === false ? 0 : area.top - clip.top,\n                bottom: clip.bottom === false ? this.height : area.bottom + clip.bottom\n            });\n        }\n        meta.controller.draw();\n        if (useClip) {\n            unclipArea(ctx);\n        }\n        args.cancelable = false;\n        this.notifyPlugins('afterDatasetDraw', args);\n    }\n isPointInArea(point) {\n        return _isPointInArea(point, this.chartArea, this._minPadding);\n    }\n    getElementsAtEventForMode(e, mode, options, useFinalPosition) {\n        const method = Interaction.modes[mode];\n        if (typeof method === 'function') {\n            return method(this, e, options, useFinalPosition);\n        }\n        return [];\n    }\n    getDatasetMeta(datasetIndex) {\n        const dataset = this.data.datasets[datasetIndex];\n        const metasets = this._metasets;\n        let meta = metasets.filter((x)=>x && x._dataset === dataset).pop();\n        if (!meta) {\n            meta = {\n                type: null,\n                data: [],\n                dataset: null,\n                controller: null,\n                hidden: null,\n                xAxisID: null,\n                yAxisID: null,\n                order: dataset && dataset.order || 0,\n                index: datasetIndex,\n                _dataset: dataset,\n                _parsed: [],\n                _sorted: false\n            };\n            metasets.push(meta);\n        }\n        return meta;\n    }\n    getContext() {\n        return this.$context || (this.$context = createContext(null, {\n            chart: this,\n            type: 'chart'\n        }));\n    }\n    getVisibleDatasetCount() {\n        return this.getSortedVisibleDatasetMetas().length;\n    }\n    isDatasetVisible(datasetIndex) {\n        const dataset = this.data.datasets[datasetIndex];\n        if (!dataset) {\n            return false;\n        }\n        const meta = this.getDatasetMeta(datasetIndex);\n        return typeof meta.hidden === 'boolean' ? !meta.hidden : !dataset.hidden;\n    }\n    setDatasetVisibility(datasetIndex, visible) {\n        const meta = this.getDatasetMeta(datasetIndex);\n        meta.hidden = !visible;\n    }\n    toggleDataVisibility(index) {\n        this._hiddenIndices[index] = !this._hiddenIndices[index];\n    }\n    getDataVisibility(index) {\n        return !this._hiddenIndices[index];\n    }\n _updateVisibility(datasetIndex, dataIndex, visible) {\n        const mode = visible ? 'show' : 'hide';\n        const meta = this.getDatasetMeta(datasetIndex);\n        const anims = meta.controller._resolveAnimations(undefined, mode);\n        if (defined(dataIndex)) {\n            meta.data[dataIndex].hidden = !visible;\n            this.update();\n        } else {\n            this.setDatasetVisibility(datasetIndex, visible);\n            anims.update(meta, {\n                visible\n            });\n            this.update((ctx)=>ctx.datasetIndex === datasetIndex ? mode : undefined);\n        }\n    }\n    hide(datasetIndex, dataIndex) {\n        this._updateVisibility(datasetIndex, dataIndex, false);\n    }\n    show(datasetIndex, dataIndex) {\n        this._updateVisibility(datasetIndex, dataIndex, true);\n    }\n _destroyDatasetMeta(datasetIndex) {\n        const meta = this._metasets[datasetIndex];\n        if (meta && meta.controller) {\n            meta.controller._destroy();\n        }\n        delete this._metasets[datasetIndex];\n    }\n    _stop() {\n        let i, ilen;\n        this.stop();\n        animator.remove(this);\n        for(i = 0, ilen = this.data.datasets.length; i < ilen; ++i){\n            this._destroyDatasetMeta(i);\n        }\n    }\n    destroy() {\n        this.notifyPlugins('beforeDestroy');\n        const { canvas , ctx  } = this;\n        this._stop();\n        this.config.clearCache();\n        if (canvas) {\n            this.unbindEvents();\n            clearCanvas(canvas, ctx);\n            this.platform.releaseContext(ctx);\n            this.canvas = null;\n            this.ctx = null;\n        }\n        delete instances[this.id];\n        this.notifyPlugins('afterDestroy');\n    }\n    toBase64Image(...args) {\n        return this.canvas.toDataURL(...args);\n    }\n bindEvents() {\n        this.bindUserEvents();\n        if (this.options.responsive) {\n            this.bindResponsiveEvents();\n        } else {\n            this.attached = true;\n        }\n    }\n bindUserEvents() {\n        const listeners = this._listeners;\n        const platform = this.platform;\n        const _add = (type, listener)=>{\n            platform.addEventListener(this, type, listener);\n            listeners[type] = listener;\n        };\n        const listener = (e, x, y)=>{\n            e.offsetX = x;\n            e.offsetY = y;\n            this._eventHandler(e);\n        };\n        each(this.options.events, (type)=>_add(type, listener));\n    }\n bindResponsiveEvents() {\n        if (!this._responsiveListeners) {\n            this._responsiveListeners = {};\n        }\n        const listeners = this._responsiveListeners;\n        const platform = this.platform;\n        const _add = (type, listener)=>{\n            platform.addEventListener(this, type, listener);\n            listeners[type] = listener;\n        };\n        const _remove = (type, listener)=>{\n            if (listeners[type]) {\n                platform.removeEventListener(this, type, listener);\n                delete listeners[type];\n            }\n        };\n        const listener = (width, height)=>{\n            if (this.canvas) {\n                this.resize(width, height);\n            }\n        };\n        let detached;\n        const attached = ()=>{\n            _remove('attach', attached);\n            this.attached = true;\n            this.resize();\n            _add('resize', listener);\n            _add('detach', detached);\n        };\n        detached = ()=>{\n            this.attached = false;\n            _remove('resize', listener);\n            this._stop();\n            this._resize(0, 0);\n            _add('attach', attached);\n        };\n        if (platform.isAttached(this.canvas)) {\n            attached();\n        } else {\n            detached();\n        }\n    }\n unbindEvents() {\n        each(this._listeners, (listener, type)=>{\n            this.platform.removeEventListener(this, type, listener);\n        });\n        this._listeners = {};\n        each(this._responsiveListeners, (listener, type)=>{\n            this.platform.removeEventListener(this, type, listener);\n        });\n        this._responsiveListeners = undefined;\n    }\n    updateHoverStyle(items, mode, enabled) {\n        const prefix = enabled ? 'set' : 'remove';\n        let meta, item, i, ilen;\n        if (mode === 'dataset') {\n            meta = this.getDatasetMeta(items[0].datasetIndex);\n            meta.controller['_' + prefix + 'DatasetHoverStyle']();\n        }\n        for(i = 0, ilen = items.length; i < ilen; ++i){\n            item = items[i];\n            const controller = item && this.getDatasetMeta(item.datasetIndex).controller;\n            if (controller) {\n                controller[prefix + 'HoverStyle'](item.element, item.datasetIndex, item.index);\n            }\n        }\n    }\n getActiveElements() {\n        return this._active || [];\n    }\n setActiveElements(activeElements) {\n        const lastActive = this._active || [];\n        const active = activeElements.map(({ datasetIndex , index  })=>{\n            const meta = this.getDatasetMeta(datasetIndex);\n            if (!meta) {\n                throw new Error('No dataset found at index ' + datasetIndex);\n            }\n            return {\n                datasetIndex,\n                element: meta.data[index],\n                index\n            };\n        });\n        const changed = !_elementsEqual(active, lastActive);\n        if (changed) {\n            this._active = active;\n            this._lastEvent = null;\n            this._updateHoverStyles(active, lastActive);\n        }\n    }\n notifyPlugins(hook, args, filter) {\n        return this._plugins.notify(this, hook, args, filter);\n    }\n isPluginEnabled(pluginId) {\n        return this._plugins._cache.filter((p)=>p.plugin.id === pluginId).length === 1;\n    }\n _updateHoverStyles(active, lastActive, replay) {\n        const hoverOptions = this.options.hover;\n        const diff = (a, b)=>a.filter((x)=>!b.some((y)=>x.datasetIndex === y.datasetIndex && x.index === y.index));\n        const deactivated = diff(lastActive, active);\n        const activated = replay ? active : diff(active, lastActive);\n        if (deactivated.length) {\n            this.updateHoverStyle(deactivated, hoverOptions.mode, false);\n        }\n        if (activated.length && hoverOptions.mode) {\n            this.updateHoverStyle(activated, hoverOptions.mode, true);\n        }\n    }\n _eventHandler(e, replay) {\n        const args = {\n            event: e,\n            replay,\n            cancelable: true,\n            inChartArea: this.isPointInArea(e)\n        };\n        const eventFilter = (plugin)=>(plugin.options.events || this.options.events).includes(e.native.type);\n        if (this.notifyPlugins('beforeEvent', args, eventFilter) === false) {\n            return;\n        }\n        const changed = this._handleEvent(e, replay, args.inChartArea);\n        args.cancelable = false;\n        this.notifyPlugins('afterEvent', args, eventFilter);\n        if (changed || args.changed) {\n            this.render();\n        }\n        return this;\n    }\n _handleEvent(e, replay, inChartArea) {\n        const { _active: lastActive = [] , options  } = this;\n        const useFinalPosition = replay;\n        const active = this._getActiveElements(e, lastActive, inChartArea, useFinalPosition);\n        const isClick = _isClickEvent(e);\n        const lastEvent = determineLastEvent(e, this._lastEvent, inChartArea, isClick);\n        if (inChartArea) {\n            this._lastEvent = null;\n            callback(options.onHover, [\n                e,\n                active,\n                this\n            ], this);\n            if (isClick) {\n                callback(options.onClick, [\n                    e,\n                    active,\n                    this\n                ], this);\n            }\n        }\n        const changed = !_elementsEqual(active, lastActive);\n        if (changed || replay) {\n            this._active = active;\n            this._updateHoverStyles(active, lastActive, replay);\n        }\n        this._lastEvent = lastEvent;\n        return changed;\n    }\n _getActiveElements(e, lastActive, inChartArea, useFinalPosition) {\n        if (e.type === 'mouseout') {\n            return [];\n        }\n        if (!inChartArea) {\n            return lastActive;\n        }\n        const hoverOptions = this.options.hover;\n        return this.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions, useFinalPosition);\n    }\n}\nfunction invalidatePlugins() {\n    return each(Chart.instances, (chart)=>chart._plugins.invalidate());\n}\n\nfunction clipArc(ctx, element, endAngle) {\n    const { startAngle , pixelMargin , x , y , outerRadius , innerRadius  } = element;\n    let angleMargin = pixelMargin / outerRadius;\n    // Draw an inner border by clipping the arc and drawing a double-width border\n    // Enlarge the clipping arc by 0.33 pixels to eliminate glitches between borders\n    ctx.beginPath();\n    ctx.arc(x, y, outerRadius, startAngle - angleMargin, endAngle + angleMargin);\n    if (innerRadius > pixelMargin) {\n        angleMargin = pixelMargin / innerRadius;\n        ctx.arc(x, y, innerRadius, endAngle + angleMargin, startAngle - angleMargin, true);\n    } else {\n        ctx.arc(x, y, pixelMargin, endAngle + HALF_PI, startAngle - HALF_PI);\n    }\n    ctx.closePath();\n    ctx.clip();\n}\nfunction toRadiusCorners(value) {\n    return _readValueToProps(value, [\n        'outerStart',\n        'outerEnd',\n        'innerStart',\n        'innerEnd'\n    ]);\n}\n/**\n * Parse border radius from the provided options\n */ function parseBorderRadius$1(arc, innerRadius, outerRadius, angleDelta) {\n    const o = toRadiusCorners(arc.options.borderRadius);\n    const halfThickness = (outerRadius - innerRadius) / 2;\n    const innerLimit = Math.min(halfThickness, angleDelta * innerRadius / 2);\n    // Outer limits are complicated. We want to compute the available angular distance at\n    // a radius of outerRadius - borderRadius because for small angular distances, this term limits.\n    // We compute at r = outerRadius - borderRadius because this circle defines the center of the border corners.\n    //\n    // If the borderRadius is large, that value can become negative.\n    // This causes the outer borders to lose their radius entirely, which is rather unexpected. To solve that, if borderRadius > outerRadius\n    // we know that the thickness term will dominate and compute the limits at that point\n    const computeOuterLimit = (val)=>{\n        const outerArcLimit = (outerRadius - Math.min(halfThickness, val)) * angleDelta / 2;\n        return _limitValue(val, 0, Math.min(halfThickness, outerArcLimit));\n    };\n    return {\n        outerStart: computeOuterLimit(o.outerStart),\n        outerEnd: computeOuterLimit(o.outerEnd),\n        innerStart: _limitValue(o.innerStart, 0, innerLimit),\n        innerEnd: _limitValue(o.innerEnd, 0, innerLimit)\n    };\n}\n/**\n * Convert (r, 𝜃) to (x, y)\n */ function rThetaToXY(r, theta, x, y) {\n    return {\n        x: x + r * Math.cos(theta),\n        y: y + r * Math.sin(theta)\n    };\n}\n/**\n * Path the arc, respecting border radius by separating into left and right halves.\n *\n *   Start      End\n *\n *    1--->a--->2    Outer\n *   /           \\\n *   8           3\n *   |           |\n *   |           |\n *   7           4\n *   \\           /\n *    6<---b<---5    Inner\n */ function pathArc(ctx, element, offset, spacing, end, circular) {\n    const { x , y , startAngle: start , pixelMargin , innerRadius: innerR  } = element;\n    const outerRadius = Math.max(element.outerRadius + spacing + offset - pixelMargin, 0);\n    const innerRadius = innerR > 0 ? innerR + spacing + offset + pixelMargin : 0;\n    let spacingOffset = 0;\n    const alpha = end - start;\n    if (spacing) {\n        // When spacing is present, it is the same for all items\n        // So we adjust the start and end angle of the arc such that\n        // the distance is the same as it would be without the spacing\n        const noSpacingInnerRadius = innerR > 0 ? innerR - spacing : 0;\n        const noSpacingOuterRadius = outerRadius > 0 ? outerRadius - spacing : 0;\n        const avNogSpacingRadius = (noSpacingInnerRadius + noSpacingOuterRadius) / 2;\n        const adjustedAngle = avNogSpacingRadius !== 0 ? alpha * avNogSpacingRadius / (avNogSpacingRadius + spacing) : alpha;\n        spacingOffset = (alpha - adjustedAngle) / 2;\n    }\n    const beta = Math.max(0.001, alpha * outerRadius - offset / PI) / outerRadius;\n    const angleOffset = (alpha - beta) / 2;\n    const startAngle = start + angleOffset + spacingOffset;\n    const endAngle = end - angleOffset - spacingOffset;\n    const { outerStart , outerEnd , innerStart , innerEnd  } = parseBorderRadius$1(element, innerRadius, outerRadius, endAngle - startAngle);\n    const outerStartAdjustedRadius = outerRadius - outerStart;\n    const outerEndAdjustedRadius = outerRadius - outerEnd;\n    const outerStartAdjustedAngle = startAngle + outerStart / outerStartAdjustedRadius;\n    const outerEndAdjustedAngle = endAngle - outerEnd / outerEndAdjustedRadius;\n    const innerStartAdjustedRadius = innerRadius + innerStart;\n    const innerEndAdjustedRadius = innerRadius + innerEnd;\n    const innerStartAdjustedAngle = startAngle + innerStart / innerStartAdjustedRadius;\n    const innerEndAdjustedAngle = endAngle - innerEnd / innerEndAdjustedRadius;\n    ctx.beginPath();\n    if (circular) {\n        // The first arc segments from point 1 to point a to point 2\n        const outerMidAdjustedAngle = (outerStartAdjustedAngle + outerEndAdjustedAngle) / 2;\n        ctx.arc(x, y, outerRadius, outerStartAdjustedAngle, outerMidAdjustedAngle);\n        ctx.arc(x, y, outerRadius, outerMidAdjustedAngle, outerEndAdjustedAngle);\n        // The corner segment from point 2 to point 3\n        if (outerEnd > 0) {\n            const pCenter = rThetaToXY(outerEndAdjustedRadius, outerEndAdjustedAngle, x, y);\n            ctx.arc(pCenter.x, pCenter.y, outerEnd, outerEndAdjustedAngle, endAngle + HALF_PI);\n        }\n        // The line from point 3 to point 4\n        const p4 = rThetaToXY(innerEndAdjustedRadius, endAngle, x, y);\n        ctx.lineTo(p4.x, p4.y);\n        // The corner segment from point 4 to point 5\n        if (innerEnd > 0) {\n            const pCenter = rThetaToXY(innerEndAdjustedRadius, innerEndAdjustedAngle, x, y);\n            ctx.arc(pCenter.x, pCenter.y, innerEnd, endAngle + HALF_PI, innerEndAdjustedAngle + Math.PI);\n        }\n        // The inner arc from point 5 to point b to point 6\n        const innerMidAdjustedAngle = (endAngle - innerEnd / innerRadius + (startAngle + innerStart / innerRadius)) / 2;\n        ctx.arc(x, y, innerRadius, endAngle - innerEnd / innerRadius, innerMidAdjustedAngle, true);\n        ctx.arc(x, y, innerRadius, innerMidAdjustedAngle, startAngle + innerStart / innerRadius, true);\n        // The corner segment from point 6 to point 7\n        if (innerStart > 0) {\n            const pCenter = rThetaToXY(innerStartAdjustedRadius, innerStartAdjustedAngle, x, y);\n            ctx.arc(pCenter.x, pCenter.y, innerStart, innerStartAdjustedAngle + Math.PI, startAngle - HALF_PI);\n        }\n        // The line from point 7 to point 8\n        const p8 = rThetaToXY(outerStartAdjustedRadius, startAngle, x, y);\n        ctx.lineTo(p8.x, p8.y);\n        // The corner segment from point 8 to point 1\n        if (outerStart > 0) {\n            const pCenter = rThetaToXY(outerStartAdjustedRadius, outerStartAdjustedAngle, x, y);\n            ctx.arc(pCenter.x, pCenter.y, outerStart, startAngle - HALF_PI, outerStartAdjustedAngle);\n        }\n    } else {\n        ctx.moveTo(x, y);\n        const outerStartX = Math.cos(outerStartAdjustedAngle) * outerRadius + x;\n        const outerStartY = Math.sin(outerStartAdjustedAngle) * outerRadius + y;\n        ctx.lineTo(outerStartX, outerStartY);\n        const outerEndX = Math.cos(outerEndAdjustedAngle) * outerRadius + x;\n        const outerEndY = Math.sin(outerEndAdjustedAngle) * outerRadius + y;\n        ctx.lineTo(outerEndX, outerEndY);\n    }\n    ctx.closePath();\n}\nfunction drawArc(ctx, element, offset, spacing, circular) {\n    const { fullCircles , startAngle , circumference  } = element;\n    let endAngle = element.endAngle;\n    if (fullCircles) {\n        pathArc(ctx, element, offset, spacing, endAngle, circular);\n        for(let i = 0; i < fullCircles; ++i){\n            ctx.fill();\n        }\n        if (!isNaN(circumference)) {\n            endAngle = startAngle + (circumference % TAU || TAU);\n        }\n    }\n    pathArc(ctx, element, offset, spacing, endAngle, circular);\n    ctx.fill();\n    return endAngle;\n}\nfunction drawBorder(ctx, element, offset, spacing, circular) {\n    const { fullCircles , startAngle , circumference , options  } = element;\n    const { borderWidth , borderJoinStyle , borderDash , borderDashOffset  } = options;\n    const inner = options.borderAlign === 'inner';\n    if (!borderWidth) {\n        return;\n    }\n    ctx.setLineDash(borderDash || []);\n    ctx.lineDashOffset = borderDashOffset;\n    if (inner) {\n        ctx.lineWidth = borderWidth * 2;\n        ctx.lineJoin = borderJoinStyle || 'round';\n    } else {\n        ctx.lineWidth = borderWidth;\n        ctx.lineJoin = borderJoinStyle || 'bevel';\n    }\n    let endAngle = element.endAngle;\n    if (fullCircles) {\n        pathArc(ctx, element, offset, spacing, endAngle, circular);\n        for(let i = 0; i < fullCircles; ++i){\n            ctx.stroke();\n        }\n        if (!isNaN(circumference)) {\n            endAngle = startAngle + (circumference % TAU || TAU);\n        }\n    }\n    if (inner) {\n        clipArc(ctx, element, endAngle);\n    }\n    if (!fullCircles) {\n        pathArc(ctx, element, offset, spacing, endAngle, circular);\n        ctx.stroke();\n    }\n}\nclass ArcElement extends Element {\n    static id = 'arc';\n    static defaults = {\n        borderAlign: 'center',\n        borderColor: '#fff',\n        borderDash: [],\n        borderDashOffset: 0,\n        borderJoinStyle: undefined,\n        borderRadius: 0,\n        borderWidth: 2,\n        offset: 0,\n        spacing: 0,\n        angle: undefined,\n        circular: true\n    };\n    static defaultRoutes = {\n        backgroundColor: 'backgroundColor'\n    };\n    static descriptors = {\n        _scriptable: true,\n        _indexable: (name)=>name !== 'borderDash'\n    };\n    circumference;\n    endAngle;\n    fullCircles;\n    innerRadius;\n    outerRadius;\n    pixelMargin;\n    startAngle;\n    constructor(cfg){\n        super();\n        this.options = undefined;\n        this.circumference = undefined;\n        this.startAngle = undefined;\n        this.endAngle = undefined;\n        this.innerRadius = undefined;\n        this.outerRadius = undefined;\n        this.pixelMargin = 0;\n        this.fullCircles = 0;\n        if (cfg) {\n            Object.assign(this, cfg);\n        }\n    }\n    inRange(chartX, chartY, useFinalPosition) {\n        const point = this.getProps([\n            'x',\n            'y'\n        ], useFinalPosition);\n        const { angle , distance  } = getAngleFromPoint(point, {\n            x: chartX,\n            y: chartY\n        });\n        const { startAngle , endAngle , innerRadius , outerRadius , circumference  } = this.getProps([\n            'startAngle',\n            'endAngle',\n            'innerRadius',\n            'outerRadius',\n            'circumference'\n        ], useFinalPosition);\n        const rAdjust = (this.options.spacing + this.options.borderWidth) / 2;\n        const _circumference = valueOrDefault(circumference, endAngle - startAngle);\n        const betweenAngles = _circumference >= TAU || _angleBetween(angle, startAngle, endAngle);\n        const withinRadius = _isBetween(distance, innerRadius + rAdjust, outerRadius + rAdjust);\n        return betweenAngles && withinRadius;\n    }\n    getCenterPoint(useFinalPosition) {\n        const { x , y , startAngle , endAngle , innerRadius , outerRadius  } = this.getProps([\n            'x',\n            'y',\n            'startAngle',\n            'endAngle',\n            'innerRadius',\n            'outerRadius'\n        ], useFinalPosition);\n        const { offset , spacing  } = this.options;\n        const halfAngle = (startAngle + endAngle) / 2;\n        const halfRadius = (innerRadius + outerRadius + spacing + offset) / 2;\n        return {\n            x: x + Math.cos(halfAngle) * halfRadius,\n            y: y + Math.sin(halfAngle) * halfRadius\n        };\n    }\n    tooltipPosition(useFinalPosition) {\n        return this.getCenterPoint(useFinalPosition);\n    }\n    draw(ctx) {\n        const { options , circumference  } = this;\n        const offset = (options.offset || 0) / 4;\n        const spacing = (options.spacing || 0) / 2;\n        const circular = options.circular;\n        this.pixelMargin = options.borderAlign === 'inner' ? 0.33 : 0;\n        this.fullCircles = circumference > TAU ? Math.floor(circumference / TAU) : 0;\n        if (circumference === 0 || this.innerRadius < 0 || this.outerRadius < 0) {\n            return;\n        }\n        ctx.save();\n        const halfAngle = (this.startAngle + this.endAngle) / 2;\n        ctx.translate(Math.cos(halfAngle) * offset, Math.sin(halfAngle) * offset);\n        const fix = 1 - Math.sin(Math.min(PI, circumference || 0));\n        const radiusOffset = offset * fix;\n        ctx.fillStyle = options.backgroundColor;\n        ctx.strokeStyle = options.borderColor;\n        drawArc(ctx, this, radiusOffset, spacing, circular);\n        drawBorder(ctx, this, radiusOffset, spacing, circular);\n        ctx.restore();\n    }\n}\n\nfunction setStyle(ctx, options, style = options) {\n    ctx.lineCap = valueOrDefault(style.borderCapStyle, options.borderCapStyle);\n    ctx.setLineDash(valueOrDefault(style.borderDash, options.borderDash));\n    ctx.lineDashOffset = valueOrDefault(style.borderDashOffset, options.borderDashOffset);\n    ctx.lineJoin = valueOrDefault(style.borderJoinStyle, options.borderJoinStyle);\n    ctx.lineWidth = valueOrDefault(style.borderWidth, options.borderWidth);\n    ctx.strokeStyle = valueOrDefault(style.borderColor, options.borderColor);\n}\nfunction lineTo(ctx, previous, target) {\n    ctx.lineTo(target.x, target.y);\n}\n function getLineMethod(options) {\n    if (options.stepped) {\n        return _steppedLineTo;\n    }\n    if (options.tension || options.cubicInterpolationMode === 'monotone') {\n        return _bezierCurveTo;\n    }\n    return lineTo;\n}\nfunction pathVars(points, segment, params = {}) {\n    const count = points.length;\n    const { start: paramsStart = 0 , end: paramsEnd = count - 1  } = params;\n    const { start: segmentStart , end: segmentEnd  } = segment;\n    const start = Math.max(paramsStart, segmentStart);\n    const end = Math.min(paramsEnd, segmentEnd);\n    const outside = paramsStart < segmentStart && paramsEnd < segmentStart || paramsStart > segmentEnd && paramsEnd > segmentEnd;\n    return {\n        count,\n        start,\n        loop: segment.loop,\n        ilen: end < start && !outside ? count + end - start : end - start\n    };\n}\n function pathSegment(ctx, line, segment, params) {\n    const { points , options  } = line;\n    const { count , start , loop , ilen  } = pathVars(points, segment, params);\n    const lineMethod = getLineMethod(options);\n    let { move =true , reverse  } = params || {};\n    let i, point, prev;\n    for(i = 0; i <= ilen; ++i){\n        point = points[(start + (reverse ? ilen - i : i)) % count];\n        if (point.skip) {\n            continue;\n        } else if (move) {\n            ctx.moveTo(point.x, point.y);\n            move = false;\n        } else {\n            lineMethod(ctx, prev, point, reverse, options.stepped);\n        }\n        prev = point;\n    }\n    if (loop) {\n        point = points[(start + (reverse ? ilen : 0)) % count];\n        lineMethod(ctx, prev, point, reverse, options.stepped);\n    }\n    return !!loop;\n}\n function fastPathSegment(ctx, line, segment, params) {\n    const points = line.points;\n    const { count , start , ilen  } = pathVars(points, segment, params);\n    const { move =true , reverse  } = params || {};\n    let avgX = 0;\n    let countX = 0;\n    let i, point, prevX, minY, maxY, lastY;\n    const pointIndex = (index)=>(start + (reverse ? ilen - index : index)) % count;\n    const drawX = ()=>{\n        if (minY !== maxY) {\n            ctx.lineTo(avgX, maxY);\n            ctx.lineTo(avgX, minY);\n            ctx.lineTo(avgX, lastY);\n        }\n    };\n    if (move) {\n        point = points[pointIndex(0)];\n        ctx.moveTo(point.x, point.y);\n    }\n    for(i = 0; i <= ilen; ++i){\n        point = points[pointIndex(i)];\n        if (point.skip) {\n            continue;\n        }\n        const x = point.x;\n        const y = point.y;\n        const truncX = x | 0;\n        if (truncX === prevX) {\n            if (y < minY) {\n                minY = y;\n            } else if (y > maxY) {\n                maxY = y;\n            }\n            avgX = (countX * avgX + x) / ++countX;\n        } else {\n            drawX();\n            ctx.lineTo(x, y);\n            prevX = truncX;\n            countX = 0;\n            minY = maxY = y;\n        }\n        lastY = y;\n    }\n    drawX();\n}\n function _getSegmentMethod(line) {\n    const opts = line.options;\n    const borderDash = opts.borderDash && opts.borderDash.length;\n    const useFastPath = !line._decimated && !line._loop && !opts.tension && opts.cubicInterpolationMode !== 'monotone' && !opts.stepped && !borderDash;\n    return useFastPath ? fastPathSegment : pathSegment;\n}\n function _getInterpolationMethod(options) {\n    if (options.stepped) {\n        return _steppedInterpolation;\n    }\n    if (options.tension || options.cubicInterpolationMode === 'monotone') {\n        return _bezierInterpolation;\n    }\n    return _pointInLine;\n}\nfunction strokePathWithCache(ctx, line, start, count) {\n    let path = line._path;\n    if (!path) {\n        path = line._path = new Path2D();\n        if (line.path(path, start, count)) {\n            path.closePath();\n        }\n    }\n    setStyle(ctx, line.options);\n    ctx.stroke(path);\n}\nfunction strokePathDirect(ctx, line, start, count) {\n    const { segments , options  } = line;\n    const segmentMethod = _getSegmentMethod(line);\n    for (const segment of segments){\n        setStyle(ctx, options, segment.style);\n        ctx.beginPath();\n        if (segmentMethod(ctx, line, segment, {\n            start,\n            end: start + count - 1\n        })) {\n            ctx.closePath();\n        }\n        ctx.stroke();\n    }\n}\nconst usePath2D = typeof Path2D === 'function';\nfunction draw(ctx, line, start, count) {\n    if (usePath2D && !line.options.segment) {\n        strokePathWithCache(ctx, line, start, count);\n    } else {\n        strokePathDirect(ctx, line, start, count);\n    }\n}\nclass LineElement extends Element {\n    static id = 'line';\n static defaults = {\n        borderCapStyle: 'butt',\n        borderDash: [],\n        borderDashOffset: 0,\n        borderJoinStyle: 'miter',\n        borderWidth: 3,\n        capBezierPoints: true,\n        cubicInterpolationMode: 'default',\n        fill: false,\n        spanGaps: false,\n        stepped: false,\n        tension: 0\n    };\n static defaultRoutes = {\n        backgroundColor: 'backgroundColor',\n        borderColor: 'borderColor'\n    };\n    static descriptors = {\n        _scriptable: true,\n        _indexable: (name)=>name !== 'borderDash' && name !== 'fill'\n    };\n    constructor(cfg){\n        super();\n        this.animated = true;\n        this.options = undefined;\n        this._chart = undefined;\n        this._loop = undefined;\n        this._fullLoop = undefined;\n        this._path = undefined;\n        this._points = undefined;\n        this._segments = undefined;\n        this._decimated = false;\n        this._pointsUpdated = false;\n        this._datasetIndex = undefined;\n        if (cfg) {\n            Object.assign(this, cfg);\n        }\n    }\n    updateControlPoints(chartArea, indexAxis) {\n        const options = this.options;\n        if ((options.tension || options.cubicInterpolationMode === 'monotone') && !options.stepped && !this._pointsUpdated) {\n            const loop = options.spanGaps ? this._loop : this._fullLoop;\n            _updateBezierControlPoints(this._points, options, chartArea, loop, indexAxis);\n            this._pointsUpdated = true;\n        }\n    }\n    set points(points) {\n        this._points = points;\n        delete this._segments;\n        delete this._path;\n        this._pointsUpdated = false;\n    }\n    get points() {\n        return this._points;\n    }\n    get segments() {\n        return this._segments || (this._segments = _computeSegments(this, this.options.segment));\n    }\n first() {\n        const segments = this.segments;\n        const points = this.points;\n        return segments.length && points[segments[0].start];\n    }\n last() {\n        const segments = this.segments;\n        const points = this.points;\n        const count = segments.length;\n        return count && points[segments[count - 1].end];\n    }\n interpolate(point, property) {\n        const options = this.options;\n        const value = point[property];\n        const points = this.points;\n        const segments = _boundSegments(this, {\n            property,\n            start: value,\n            end: value\n        });\n        if (!segments.length) {\n            return;\n        }\n        const result = [];\n        const _interpolate = _getInterpolationMethod(options);\n        let i, ilen;\n        for(i = 0, ilen = segments.length; i < ilen; ++i){\n            const { start , end  } = segments[i];\n            const p1 = points[start];\n            const p2 = points[end];\n            if (p1 === p2) {\n                result.push(p1);\n                continue;\n            }\n            const t = Math.abs((value - p1[property]) / (p2[property] - p1[property]));\n            const interpolated = _interpolate(p1, p2, t, options.stepped);\n            interpolated[property] = point[property];\n            result.push(interpolated);\n        }\n        return result.length === 1 ? result[0] : result;\n    }\n pathSegment(ctx, segment, params) {\n        const segmentMethod = _getSegmentMethod(this);\n        return segmentMethod(ctx, this, segment, params);\n    }\n path(ctx, start, count) {\n        const segments = this.segments;\n        const segmentMethod = _getSegmentMethod(this);\n        let loop = this._loop;\n        start = start || 0;\n        count = count || this.points.length - start;\n        for (const segment of segments){\n            loop &= segmentMethod(ctx, this, segment, {\n                start,\n                end: start + count - 1\n            });\n        }\n        return !!loop;\n    }\n draw(ctx, chartArea, start, count) {\n        const options = this.options || {};\n        const points = this.points || [];\n        if (points.length && options.borderWidth) {\n            ctx.save();\n            draw(ctx, this, start, count);\n            ctx.restore();\n        }\n        if (this.animated) {\n            this._pointsUpdated = false;\n            this._path = undefined;\n        }\n    }\n}\n\nfunction inRange$1(el, pos, axis, useFinalPosition) {\n    const options = el.options;\n    const { [axis]: value  } = el.getProps([\n        axis\n    ], useFinalPosition);\n    return Math.abs(pos - value) < options.radius + options.hitRadius;\n}\nclass PointElement extends Element {\n    static id = 'point';\n    parsed;\n    skip;\n    stop;\n    /**\n   * @type {any}\n   */ static defaults = {\n        borderWidth: 1,\n        hitRadius: 1,\n        hoverBorderWidth: 1,\n        hoverRadius: 4,\n        pointStyle: 'circle',\n        radius: 3,\n        rotation: 0\n    };\n    /**\n   * @type {any}\n   */ static defaultRoutes = {\n        backgroundColor: 'backgroundColor',\n        borderColor: 'borderColor'\n    };\n    constructor(cfg){\n        super();\n        this.options = undefined;\n        this.parsed = undefined;\n        this.skip = undefined;\n        this.stop = undefined;\n        if (cfg) {\n            Object.assign(this, cfg);\n        }\n    }\n    inRange(mouseX, mouseY, useFinalPosition) {\n        const options = this.options;\n        const { x , y  } = this.getProps([\n            'x',\n            'y'\n        ], useFinalPosition);\n        return Math.pow(mouseX - x, 2) + Math.pow(mouseY - y, 2) < Math.pow(options.hitRadius + options.radius, 2);\n    }\n    inXRange(mouseX, useFinalPosition) {\n        return inRange$1(this, mouseX, 'x', useFinalPosition);\n    }\n    inYRange(mouseY, useFinalPosition) {\n        return inRange$1(this, mouseY, 'y', useFinalPosition);\n    }\n    getCenterPoint(useFinalPosition) {\n        const { x , y  } = this.getProps([\n            'x',\n            'y'\n        ], useFinalPosition);\n        return {\n            x,\n            y\n        };\n    }\n    size(options) {\n        options = options || this.options || {};\n        let radius = options.radius || 0;\n        radius = Math.max(radius, radius && options.hoverRadius || 0);\n        const borderWidth = radius && options.borderWidth || 0;\n        return (radius + borderWidth) * 2;\n    }\n    draw(ctx, area) {\n        const options = this.options;\n        if (this.skip || options.radius < 0.1 || !_isPointInArea(this, area, this.size(options) / 2)) {\n            return;\n        }\n        ctx.strokeStyle = options.borderColor;\n        ctx.lineWidth = options.borderWidth;\n        ctx.fillStyle = options.backgroundColor;\n        drawPoint(ctx, options, this.x, this.y);\n    }\n    getRange() {\n        const options = this.options || {};\n        // @ts-expect-error Fallbacks should never be hit in practice\n        return options.radius + options.hitRadius;\n    }\n}\n\nfunction getBarBounds(bar, useFinalPosition) {\n    const { x , y , base , width , height  } =  bar.getProps([\n        'x',\n        'y',\n        'base',\n        'width',\n        'height'\n    ], useFinalPosition);\n    let left, right, top, bottom, half;\n    if (bar.horizontal) {\n        half = height / 2;\n        left = Math.min(x, base);\n        right = Math.max(x, base);\n        top = y - half;\n        bottom = y + half;\n    } else {\n        half = width / 2;\n        left = x - half;\n        right = x + half;\n        top = Math.min(y, base);\n        bottom = Math.max(y, base);\n    }\n    return {\n        left,\n        top,\n        right,\n        bottom\n    };\n}\nfunction skipOrLimit(skip, value, min, max) {\n    return skip ? 0 : _limitValue(value, min, max);\n}\nfunction parseBorderWidth(bar, maxW, maxH) {\n    const value = bar.options.borderWidth;\n    const skip = bar.borderSkipped;\n    const o = toTRBL(value);\n    return {\n        t: skipOrLimit(skip.top, o.top, 0, maxH),\n        r: skipOrLimit(skip.right, o.right, 0, maxW),\n        b: skipOrLimit(skip.bottom, o.bottom, 0, maxH),\n        l: skipOrLimit(skip.left, o.left, 0, maxW)\n    };\n}\nfunction parseBorderRadius(bar, maxW, maxH) {\n    const { enableBorderRadius  } = bar.getProps([\n        'enableBorderRadius'\n    ]);\n    const value = bar.options.borderRadius;\n    const o = toTRBLCorners(value);\n    const maxR = Math.min(maxW, maxH);\n    const skip = bar.borderSkipped;\n    const enableBorder = enableBorderRadius || isObject(value);\n    return {\n        topLeft: skipOrLimit(!enableBorder || skip.top || skip.left, o.topLeft, 0, maxR),\n        topRight: skipOrLimit(!enableBorder || skip.top || skip.right, o.topRight, 0, maxR),\n        bottomLeft: skipOrLimit(!enableBorder || skip.bottom || skip.left, o.bottomLeft, 0, maxR),\n        bottomRight: skipOrLimit(!enableBorder || skip.bottom || skip.right, o.bottomRight, 0, maxR)\n    };\n}\nfunction boundingRects(bar) {\n    const bounds = getBarBounds(bar);\n    const width = bounds.right - bounds.left;\n    const height = bounds.bottom - bounds.top;\n    const border = parseBorderWidth(bar, width / 2, height / 2);\n    const radius = parseBorderRadius(bar, width / 2, height / 2);\n    return {\n        outer: {\n            x: bounds.left,\n            y: bounds.top,\n            w: width,\n            h: height,\n            radius\n        },\n        inner: {\n            x: bounds.left + border.l,\n            y: bounds.top + border.t,\n            w: width - border.l - border.r,\n            h: height - border.t - border.b,\n            radius: {\n                topLeft: Math.max(0, radius.topLeft - Math.max(border.t, border.l)),\n                topRight: Math.max(0, radius.topRight - Math.max(border.t, border.r)),\n                bottomLeft: Math.max(0, radius.bottomLeft - Math.max(border.b, border.l)),\n                bottomRight: Math.max(0, radius.bottomRight - Math.max(border.b, border.r))\n            }\n        }\n    };\n}\nfunction inRange(bar, x, y, useFinalPosition) {\n    const skipX = x === null;\n    const skipY = y === null;\n    const skipBoth = skipX && skipY;\n    const bounds = bar && !skipBoth && getBarBounds(bar, useFinalPosition);\n    return bounds && (skipX || _isBetween(x, bounds.left, bounds.right)) && (skipY || _isBetween(y, bounds.top, bounds.bottom));\n}\nfunction hasRadius(radius) {\n    return radius.topLeft || radius.topRight || radius.bottomLeft || radius.bottomRight;\n}\n function addNormalRectPath(ctx, rect) {\n    ctx.rect(rect.x, rect.y, rect.w, rect.h);\n}\nfunction inflateRect(rect, amount, refRect = {}) {\n    const x = rect.x !== refRect.x ? -amount : 0;\n    const y = rect.y !== refRect.y ? -amount : 0;\n    const w = (rect.x + rect.w !== refRect.x + refRect.w ? amount : 0) - x;\n    const h = (rect.y + rect.h !== refRect.y + refRect.h ? amount : 0) - y;\n    return {\n        x: rect.x + x,\n        y: rect.y + y,\n        w: rect.w + w,\n        h: rect.h + h,\n        radius: rect.radius\n    };\n}\nclass BarElement extends Element {\n    static id = 'bar';\n static defaults = {\n        borderSkipped: 'start',\n        borderWidth: 0,\n        borderRadius: 0,\n        inflateAmount: 'auto',\n        pointStyle: undefined\n    };\n static defaultRoutes = {\n        backgroundColor: 'backgroundColor',\n        borderColor: 'borderColor'\n    };\n    constructor(cfg){\n        super();\n        this.options = undefined;\n        this.horizontal = undefined;\n        this.base = undefined;\n        this.width = undefined;\n        this.height = undefined;\n        this.inflateAmount = undefined;\n        if (cfg) {\n            Object.assign(this, cfg);\n        }\n    }\n    draw(ctx) {\n        const { inflateAmount , options: { borderColor , backgroundColor  }  } = this;\n        const { inner , outer  } = boundingRects(this);\n        const addRectPath = hasRadius(outer.radius) ? addRoundedRectPath : addNormalRectPath;\n        ctx.save();\n        if (outer.w !== inner.w || outer.h !== inner.h) {\n            ctx.beginPath();\n            addRectPath(ctx, inflateRect(outer, inflateAmount, inner));\n            ctx.clip();\n            addRectPath(ctx, inflateRect(inner, -inflateAmount, outer));\n            ctx.fillStyle = borderColor;\n            ctx.fill('evenodd');\n        }\n        ctx.beginPath();\n        addRectPath(ctx, inflateRect(inner, inflateAmount));\n        ctx.fillStyle = backgroundColor;\n        ctx.fill();\n        ctx.restore();\n    }\n    inRange(mouseX, mouseY, useFinalPosition) {\n        return inRange(this, mouseX, mouseY, useFinalPosition);\n    }\n    inXRange(mouseX, useFinalPosition) {\n        return inRange(this, mouseX, null, useFinalPosition);\n    }\n    inYRange(mouseY, useFinalPosition) {\n        return inRange(this, null, mouseY, useFinalPosition);\n    }\n    getCenterPoint(useFinalPosition) {\n        const { x , y , base , horizontal  } =  this.getProps([\n            'x',\n            'y',\n            'base',\n            'horizontal'\n        ], useFinalPosition);\n        return {\n            x: horizontal ? (x + base) / 2 : x,\n            y: horizontal ? y : (y + base) / 2\n        };\n    }\n    getRange(axis) {\n        return axis === 'x' ? this.width / 2 : this.height / 2;\n    }\n}\n\nvar elements = /*#__PURE__*/Object.freeze({\n__proto__: null,\nArcElement: ArcElement,\nBarElement: BarElement,\nLineElement: LineElement,\nPointElement: PointElement\n});\n\nconst BORDER_COLORS = [\n    'rgb(54, 162, 235)',\n    'rgb(255, 99, 132)',\n    'rgb(255, 159, 64)',\n    'rgb(255, 205, 86)',\n    'rgb(75, 192, 192)',\n    'rgb(153, 102, 255)',\n    'rgb(201, 203, 207)' // grey\n];\n// Border colors with 50% transparency\nconst BACKGROUND_COLORS = /* #__PURE__ */ BORDER_COLORS.map((color)=>color.replace('rgb(', 'rgba(').replace(')', ', 0.5)'));\nfunction getBorderColor(i) {\n    return BORDER_COLORS[i % BORDER_COLORS.length];\n}\nfunction getBackgroundColor(i) {\n    return BACKGROUND_COLORS[i % BACKGROUND_COLORS.length];\n}\nfunction colorizeDefaultDataset(dataset, i) {\n    dataset.borderColor = getBorderColor(i);\n    dataset.backgroundColor = getBackgroundColor(i);\n    return ++i;\n}\nfunction colorizeDoughnutDataset(dataset, i) {\n    dataset.backgroundColor = dataset.data.map(()=>getBorderColor(i++));\n    return i;\n}\nfunction colorizePolarAreaDataset(dataset, i) {\n    dataset.backgroundColor = dataset.data.map(()=>getBackgroundColor(i++));\n    return i;\n}\nfunction getColorizer(chart) {\n    let i = 0;\n    return (dataset, datasetIndex)=>{\n        const controller = chart.getDatasetMeta(datasetIndex).controller;\n        if (controller instanceof DoughnutController) {\n            i = colorizeDoughnutDataset(dataset, i);\n        } else if (controller instanceof PolarAreaController) {\n            i = colorizePolarAreaDataset(dataset, i);\n        } else if (controller) {\n            i = colorizeDefaultDataset(dataset, i);\n        }\n    };\n}\nfunction containsColorsDefinitions(descriptors) {\n    let k;\n    for(k in descriptors){\n        if (descriptors[k].borderColor || descriptors[k].backgroundColor) {\n            return true;\n        }\n    }\n    return false;\n}\nfunction containsColorsDefinition(descriptor) {\n    return descriptor && (descriptor.borderColor || descriptor.backgroundColor);\n}\nvar plugin_colors = {\n    id: 'colors',\n    defaults: {\n        enabled: true,\n        forceOverride: false\n    },\n    beforeLayout (chart, _args, options) {\n        if (!options.enabled) {\n            return;\n        }\n        const { data: { datasets  } , options: chartOptions  } = chart.config;\n        const { elements  } = chartOptions;\n        if (!options.forceOverride && (containsColorsDefinitions(datasets) || containsColorsDefinition(chartOptions) || elements && containsColorsDefinitions(elements))) {\n            return;\n        }\n        const colorizer = getColorizer(chart);\n        datasets.forEach(colorizer);\n    }\n};\n\nfunction lttbDecimation(data, start, count, availableWidth, options) {\n const samples = options.samples || availableWidth;\n    if (samples >= count) {\n        return data.slice(start, start + count);\n    }\n    const decimated = [];\n    const bucketWidth = (count - 2) / (samples - 2);\n    let sampledIndex = 0;\n    const endIndex = start + count - 1;\n    let a = start;\n    let i, maxAreaPoint, maxArea, area, nextA;\n    decimated[sampledIndex++] = data[a];\n    for(i = 0; i < samples - 2; i++){\n        let avgX = 0;\n        let avgY = 0;\n        let j;\n        const avgRangeStart = Math.floor((i + 1) * bucketWidth) + 1 + start;\n        const avgRangeEnd = Math.min(Math.floor((i + 2) * bucketWidth) + 1, count) + start;\n        const avgRangeLength = avgRangeEnd - avgRangeStart;\n        for(j = avgRangeStart; j < avgRangeEnd; j++){\n            avgX += data[j].x;\n            avgY += data[j].y;\n        }\n        avgX /= avgRangeLength;\n        avgY /= avgRangeLength;\n        const rangeOffs = Math.floor(i * bucketWidth) + 1 + start;\n        const rangeTo = Math.min(Math.floor((i + 1) * bucketWidth) + 1, count) + start;\n        const { x: pointAx , y: pointAy  } = data[a];\n        maxArea = area = -1;\n        for(j = rangeOffs; j < rangeTo; j++){\n            area = 0.5 * Math.abs((pointAx - avgX) * (data[j].y - pointAy) - (pointAx - data[j].x) * (avgY - pointAy));\n            if (area > maxArea) {\n                maxArea = area;\n                maxAreaPoint = data[j];\n                nextA = j;\n            }\n        }\n        decimated[sampledIndex++] = maxAreaPoint;\n        a = nextA;\n    }\n    decimated[sampledIndex++] = data[endIndex];\n    return decimated;\n}\nfunction minMaxDecimation(data, start, count, availableWidth) {\n    let avgX = 0;\n    let countX = 0;\n    let i, point, x, y, prevX, minIndex, maxIndex, startIndex, minY, maxY;\n    const decimated = [];\n    const endIndex = start + count - 1;\n    const xMin = data[start].x;\n    const xMax = data[endIndex].x;\n    const dx = xMax - xMin;\n    for(i = start; i < start + count; ++i){\n        point = data[i];\n        x = (point.x - xMin) / dx * availableWidth;\n        y = point.y;\n        const truncX = x | 0;\n        if (truncX === prevX) {\n            if (y < minY) {\n                minY = y;\n                minIndex = i;\n            } else if (y > maxY) {\n                maxY = y;\n                maxIndex = i;\n            }\n            avgX = (countX * avgX + point.x) / ++countX;\n        } else {\n            const lastIndex = i - 1;\n            if (!isNullOrUndef(minIndex) && !isNullOrUndef(maxIndex)) {\n                const intermediateIndex1 = Math.min(minIndex, maxIndex);\n                const intermediateIndex2 = Math.max(minIndex, maxIndex);\n                if (intermediateIndex1 !== startIndex && intermediateIndex1 !== lastIndex) {\n                    decimated.push({\n                        ...data[intermediateIndex1],\n                        x: avgX\n                    });\n                }\n                if (intermediateIndex2 !== startIndex && intermediateIndex2 !== lastIndex) {\n                    decimated.push({\n                        ...data[intermediateIndex2],\n                        x: avgX\n                    });\n                }\n            }\n            if (i > 0 && lastIndex !== startIndex) {\n                decimated.push(data[lastIndex]);\n            }\n            decimated.push(point);\n            prevX = truncX;\n            countX = 0;\n            minY = maxY = y;\n            minIndex = maxIndex = startIndex = i;\n        }\n    }\n    return decimated;\n}\nfunction cleanDecimatedDataset(dataset) {\n    if (dataset._decimated) {\n        const data = dataset._data;\n        delete dataset._decimated;\n        delete dataset._data;\n        Object.defineProperty(dataset, 'data', {\n            configurable: true,\n            enumerable: true,\n            writable: true,\n            value: data\n        });\n    }\n}\nfunction cleanDecimatedData(chart) {\n    chart.data.datasets.forEach((dataset)=>{\n        cleanDecimatedDataset(dataset);\n    });\n}\nfunction getStartAndCountOfVisiblePointsSimplified(meta, points) {\n    const pointCount = points.length;\n    let start = 0;\n    let count;\n    const { iScale  } = meta;\n    const { min , max , minDefined , maxDefined  } = iScale.getUserBounds();\n    if (minDefined) {\n        start = _limitValue(_lookupByKey(points, iScale.axis, min).lo, 0, pointCount - 1);\n    }\n    if (maxDefined) {\n        count = _limitValue(_lookupByKey(points, iScale.axis, max).hi + 1, start, pointCount) - start;\n    } else {\n        count = pointCount - start;\n    }\n    return {\n        start,\n        count\n    };\n}\nvar plugin_decimation = {\n    id: 'decimation',\n    defaults: {\n        algorithm: 'min-max',\n        enabled: false\n    },\n    beforeElementsUpdate: (chart, args, options)=>{\n        if (!options.enabled) {\n            cleanDecimatedData(chart);\n            return;\n        }\n        const availableWidth = chart.width;\n        chart.data.datasets.forEach((dataset, datasetIndex)=>{\n            const { _data , indexAxis  } = dataset;\n            const meta = chart.getDatasetMeta(datasetIndex);\n            const data = _data || dataset.data;\n            if (resolve([\n                indexAxis,\n                chart.options.indexAxis\n            ]) === 'y') {\n                return;\n            }\n            if (!meta.controller.supportsDecimation) {\n                return;\n            }\n            const xAxis = chart.scales[meta.xAxisID];\n            if (xAxis.type !== 'linear' && xAxis.type !== 'time') {\n                return;\n            }\n            if (chart.options.parsing) {\n                return;\n            }\n            let { start , count  } = getStartAndCountOfVisiblePointsSimplified(meta, data);\n            const threshold = options.threshold || 4 * availableWidth;\n            if (count <= threshold) {\n                cleanDecimatedDataset(dataset);\n                return;\n            }\n            if (isNullOrUndef(_data)) {\n                dataset._data = data;\n                delete dataset.data;\n                Object.defineProperty(dataset, 'data', {\n                    configurable: true,\n                    enumerable: true,\n                    get: function() {\n                        return this._decimated;\n                    },\n                    set: function(d) {\n                        this._data = d;\n                    }\n                });\n            }\n            let decimated;\n            switch(options.algorithm){\n                case 'lttb':\n                    decimated = lttbDecimation(data, start, count, availableWidth, options);\n                    break;\n                case 'min-max':\n                    decimated = minMaxDecimation(data, start, count, availableWidth);\n                    break;\n                default:\n                    throw new Error(`Unsupported decimation algorithm '${options.algorithm}'`);\n            }\n            dataset._decimated = decimated;\n        });\n    },\n    destroy (chart) {\n        cleanDecimatedData(chart);\n    }\n};\n\nfunction _segments(line, target, property) {\n    const segments = line.segments;\n    const points = line.points;\n    const tpoints = target.points;\n    const parts = [];\n    for (const segment of segments){\n        let { start , end  } = segment;\n        end = _findSegmentEnd(start, end, points);\n        const bounds = _getBounds(property, points[start], points[end], segment.loop);\n        if (!target.segments) {\n            parts.push({\n                source: segment,\n                target: bounds,\n                start: points[start],\n                end: points[end]\n            });\n            continue;\n        }\n        const targetSegments = _boundSegments(target, bounds);\n        for (const tgt of targetSegments){\n            const subBounds = _getBounds(property, tpoints[tgt.start], tpoints[tgt.end], tgt.loop);\n            const fillSources = _boundSegment(segment, points, subBounds);\n            for (const fillSource of fillSources){\n                parts.push({\n                    source: fillSource,\n                    target: tgt,\n                    start: {\n                        [property]: _getEdge(bounds, subBounds, 'start', Math.max)\n                    },\n                    end: {\n                        [property]: _getEdge(bounds, subBounds, 'end', Math.min)\n                    }\n                });\n            }\n        }\n    }\n    return parts;\n}\nfunction _getBounds(property, first, last, loop) {\n    if (loop) {\n        return;\n    }\n    let start = first[property];\n    let end = last[property];\n    if (property === 'angle') {\n        start = _normalizeAngle(start);\n        end = _normalizeAngle(end);\n    }\n    return {\n        property,\n        start,\n        end\n    };\n}\nfunction _pointsFromSegments(boundary, line) {\n    const { x =null , y =null  } = boundary || {};\n    const linePoints = line.points;\n    const points = [];\n    line.segments.forEach(({ start , end  })=>{\n        end = _findSegmentEnd(start, end, linePoints);\n        const first = linePoints[start];\n        const last = linePoints[end];\n        if (y !== null) {\n            points.push({\n                x: first.x,\n                y\n            });\n            points.push({\n                x: last.x,\n                y\n            });\n        } else if (x !== null) {\n            points.push({\n                x,\n                y: first.y\n            });\n            points.push({\n                x,\n                y: last.y\n            });\n        }\n    });\n    return points;\n}\nfunction _findSegmentEnd(start, end, points) {\n    for(; end > start; end--){\n        const point = points[end];\n        if (!isNaN(point.x) && !isNaN(point.y)) {\n            break;\n        }\n    }\n    return end;\n}\nfunction _getEdge(a, b, prop, fn) {\n    if (a && b) {\n        return fn(a[prop], b[prop]);\n    }\n    return a ? a[prop] : b ? b[prop] : 0;\n}\n\nfunction _createBoundaryLine(boundary, line) {\n    let points = [];\n    let _loop = false;\n    if (isArray(boundary)) {\n        _loop = true;\n        points = boundary;\n    } else {\n        points = _pointsFromSegments(boundary, line);\n    }\n    return points.length ? new LineElement({\n        points,\n        options: {\n            tension: 0\n        },\n        _loop,\n        _fullLoop: _loop\n    }) : null;\n}\nfunction _shouldApplyFill(source) {\n    return source && source.fill !== false;\n}\n\nfunction _resolveTarget(sources, index, propagate) {\n    const source = sources[index];\n    let fill = source.fill;\n    const visited = [\n        index\n    ];\n    let target;\n    if (!propagate) {\n        return fill;\n    }\n    while(fill !== false && visited.indexOf(fill) === -1){\n        if (!isNumberFinite(fill)) {\n            return fill;\n        }\n        target = sources[fill];\n        if (!target) {\n            return false;\n        }\n        if (target.visible) {\n            return fill;\n        }\n        visited.push(fill);\n        fill = target.fill;\n    }\n    return false;\n}\n function _decodeFill(line, index, count) {\n     const fill = parseFillOption(line);\n    if (isObject(fill)) {\n        return isNaN(fill.value) ? false : fill;\n    }\n    let target = parseFloat(fill);\n    if (isNumberFinite(target) && Math.floor(target) === target) {\n        return decodeTargetIndex(fill[0], index, target, count);\n    }\n    return [\n        'origin',\n        'start',\n        'end',\n        'stack',\n        'shape'\n    ].indexOf(fill) >= 0 && fill;\n}\nfunction decodeTargetIndex(firstCh, index, target, count) {\n    if (firstCh === '-' || firstCh === '+') {\n        target = index + target;\n    }\n    if (target === index || target < 0 || target >= count) {\n        return false;\n    }\n    return target;\n}\n function _getTargetPixel(fill, scale) {\n    let pixel = null;\n    if (fill === 'start') {\n        pixel = scale.bottom;\n    } else if (fill === 'end') {\n        pixel = scale.top;\n    } else if (isObject(fill)) {\n        pixel = scale.getPixelForValue(fill.value);\n    } else if (scale.getBasePixel) {\n        pixel = scale.getBasePixel();\n    }\n    return pixel;\n}\n function _getTargetValue(fill, scale, startValue) {\n    let value;\n    if (fill === 'start') {\n        value = startValue;\n    } else if (fill === 'end') {\n        value = scale.options.reverse ? scale.min : scale.max;\n    } else if (isObject(fill)) {\n        value = fill.value;\n    } else {\n        value = scale.getBaseValue();\n    }\n    return value;\n}\n function parseFillOption(line) {\n    const options = line.options;\n    const fillOption = options.fill;\n    let fill = valueOrDefault(fillOption && fillOption.target, fillOption);\n    if (fill === undefined) {\n        fill = !!options.backgroundColor;\n    }\n    if (fill === false || fill === null) {\n        return false;\n    }\n    if (fill === true) {\n        return 'origin';\n    }\n    return fill;\n}\n\nfunction _buildStackLine(source) {\n    const { scale , index , line  } = source;\n    const points = [];\n    const segments = line.segments;\n    const sourcePoints = line.points;\n    const linesBelow = getLinesBelow(scale, index);\n    linesBelow.push(_createBoundaryLine({\n        x: null,\n        y: scale.bottom\n    }, line));\n    for(let i = 0; i < segments.length; i++){\n        const segment = segments[i];\n        for(let j = segment.start; j <= segment.end; j++){\n            addPointsBelow(points, sourcePoints[j], linesBelow);\n        }\n    }\n    return new LineElement({\n        points,\n        options: {}\n    });\n}\n function getLinesBelow(scale, index) {\n    const below = [];\n    const metas = scale.getMatchingVisibleMetas('line');\n    for(let i = 0; i < metas.length; i++){\n        const meta = metas[i];\n        if (meta.index === index) {\n            break;\n        }\n        if (!meta.hidden) {\n            below.unshift(meta.dataset);\n        }\n    }\n    return below;\n}\n function addPointsBelow(points, sourcePoint, linesBelow) {\n    const postponed = [];\n    for(let j = 0; j < linesBelow.length; j++){\n        const line = linesBelow[j];\n        const { first , last , point  } = findPoint(line, sourcePoint, 'x');\n        if (!point || first && last) {\n            continue;\n        }\n        if (first) {\n            postponed.unshift(point);\n        } else {\n            points.push(point);\n            if (!last) {\n                break;\n            }\n        }\n    }\n    points.push(...postponed);\n}\n function findPoint(line, sourcePoint, property) {\n    const point = line.interpolate(sourcePoint, property);\n    if (!point) {\n        return {};\n    }\n    const pointValue = point[property];\n    const segments = line.segments;\n    const linePoints = line.points;\n    let first = false;\n    let last = false;\n    for(let i = 0; i < segments.length; i++){\n        const segment = segments[i];\n        const firstValue = linePoints[segment.start][property];\n        const lastValue = linePoints[segment.end][property];\n        if (_isBetween(pointValue, firstValue, lastValue)) {\n            first = pointValue === firstValue;\n            last = pointValue === lastValue;\n            break;\n        }\n    }\n    return {\n        first,\n        last,\n        point\n    };\n}\n\nclass simpleArc {\n    constructor(opts){\n        this.x = opts.x;\n        this.y = opts.y;\n        this.radius = opts.radius;\n    }\n    pathSegment(ctx, bounds, opts) {\n        const { x , y , radius  } = this;\n        bounds = bounds || {\n            start: 0,\n            end: TAU\n        };\n        ctx.arc(x, y, radius, bounds.end, bounds.start, true);\n        return !opts.bounds;\n    }\n    interpolate(point) {\n        const { x , y , radius  } = this;\n        const angle = point.angle;\n        return {\n            x: x + Math.cos(angle) * radius,\n            y: y + Math.sin(angle) * radius,\n            angle\n        };\n    }\n}\n\nfunction _getTarget(source) {\n    const { chart , fill , line  } = source;\n    if (isNumberFinite(fill)) {\n        return getLineByIndex(chart, fill);\n    }\n    if (fill === 'stack') {\n        return _buildStackLine(source);\n    }\n    if (fill === 'shape') {\n        return true;\n    }\n    const boundary = computeBoundary(source);\n    if (boundary instanceof simpleArc) {\n        return boundary;\n    }\n    return _createBoundaryLine(boundary, line);\n}\n function getLineByIndex(chart, index) {\n    const meta = chart.getDatasetMeta(index);\n    const visible = meta && chart.isDatasetVisible(index);\n    return visible ? meta.dataset : null;\n}\nfunction computeBoundary(source) {\n    const scale = source.scale || {};\n    if (scale.getPointPositionForValue) {\n        return computeCircularBoundary(source);\n    }\n    return computeLinearBoundary(source);\n}\nfunction computeLinearBoundary(source) {\n    const { scale ={} , fill  } = source;\n    const pixel = _getTargetPixel(fill, scale);\n    if (isNumberFinite(pixel)) {\n        const horizontal = scale.isHorizontal();\n        return {\n            x: horizontal ? pixel : null,\n            y: horizontal ? null : pixel\n        };\n    }\n    return null;\n}\nfunction computeCircularBoundary(source) {\n    const { scale , fill  } = source;\n    const options = scale.options;\n    const length = scale.getLabels().length;\n    const start = options.reverse ? scale.max : scale.min;\n    const value = _getTargetValue(fill, scale, start);\n    const target = [];\n    if (options.grid.circular) {\n        const center = scale.getPointPositionForValue(0, start);\n        return new simpleArc({\n            x: center.x,\n            y: center.y,\n            radius: scale.getDistanceFromCenterForValue(value)\n        });\n    }\n    for(let i = 0; i < length; ++i){\n        target.push(scale.getPointPositionForValue(i, value));\n    }\n    return target;\n}\n\nfunction _drawfill(ctx, source, area) {\n    const target = _getTarget(source);\n    const { line , scale , axis  } = source;\n    const lineOpts = line.options;\n    const fillOption = lineOpts.fill;\n    const color = lineOpts.backgroundColor;\n    const { above =color , below =color  } = fillOption || {};\n    if (target && line.points.length) {\n        clipArea(ctx, area);\n        doFill(ctx, {\n            line,\n            target,\n            above,\n            below,\n            area,\n            scale,\n            axis\n        });\n        unclipArea(ctx);\n    }\n}\nfunction doFill(ctx, cfg) {\n    const { line , target , above , below , area , scale  } = cfg;\n    const property = line._loop ? 'angle' : cfg.axis;\n    ctx.save();\n    if (property === 'x' && below !== above) {\n        clipVertical(ctx, target, area.top);\n        fill(ctx, {\n            line,\n            target,\n            color: above,\n            scale,\n            property\n        });\n        ctx.restore();\n        ctx.save();\n        clipVertical(ctx, target, area.bottom);\n    }\n    fill(ctx, {\n        line,\n        target,\n        color: below,\n        scale,\n        property\n    });\n    ctx.restore();\n}\nfunction clipVertical(ctx, target, clipY) {\n    const { segments , points  } = target;\n    let first = true;\n    let lineLoop = false;\n    ctx.beginPath();\n    for (const segment of segments){\n        const { start , end  } = segment;\n        const firstPoint = points[start];\n        const lastPoint = points[_findSegmentEnd(start, end, points)];\n        if (first) {\n            ctx.moveTo(firstPoint.x, firstPoint.y);\n            first = false;\n        } else {\n            ctx.lineTo(firstPoint.x, clipY);\n            ctx.lineTo(firstPoint.x, firstPoint.y);\n        }\n        lineLoop = !!target.pathSegment(ctx, segment, {\n            move: lineLoop\n        });\n        if (lineLoop) {\n            ctx.closePath();\n        } else {\n            ctx.lineTo(lastPoint.x, clipY);\n        }\n    }\n    ctx.lineTo(target.first().x, clipY);\n    ctx.closePath();\n    ctx.clip();\n}\nfunction fill(ctx, cfg) {\n    const { line , target , property , color , scale  } = cfg;\n    const segments = _segments(line, target, property);\n    for (const { source: src , target: tgt , start , end  } of segments){\n        const { style: { backgroundColor =color  } = {}  } = src;\n        const notShape = target !== true;\n        ctx.save();\n        ctx.fillStyle = backgroundColor;\n        clipBounds(ctx, scale, notShape && _getBounds(property, start, end));\n        ctx.beginPath();\n        const lineLoop = !!line.pathSegment(ctx, src);\n        let loop;\n        if (notShape) {\n            if (lineLoop) {\n                ctx.closePath();\n            } else {\n                interpolatedLineTo(ctx, target, end, property);\n            }\n            const targetLoop = !!target.pathSegment(ctx, tgt, {\n                move: lineLoop,\n                reverse: true\n            });\n            loop = lineLoop && targetLoop;\n            if (!loop) {\n                interpolatedLineTo(ctx, target, start, property);\n            }\n        }\n        ctx.closePath();\n        ctx.fill(loop ? 'evenodd' : 'nonzero');\n        ctx.restore();\n    }\n}\nfunction clipBounds(ctx, scale, bounds) {\n    const { top , bottom  } = scale.chart.chartArea;\n    const { property , start , end  } = bounds || {};\n    if (property === 'x') {\n        ctx.beginPath();\n        ctx.rect(start, top, end - start, bottom - top);\n        ctx.clip();\n    }\n}\nfunction interpolatedLineTo(ctx, target, point, property) {\n    const interpolatedPoint = target.interpolate(point, property);\n    if (interpolatedPoint) {\n        ctx.lineTo(interpolatedPoint.x, interpolatedPoint.y);\n    }\n}\n\nvar index = {\n    id: 'filler',\n    afterDatasetsUpdate (chart, _args, options) {\n        const count = (chart.data.datasets || []).length;\n        const sources = [];\n        let meta, i, line, source;\n        for(i = 0; i < count; ++i){\n            meta = chart.getDatasetMeta(i);\n            line = meta.dataset;\n            source = null;\n            if (line && line.options && line instanceof LineElement) {\n                source = {\n                    visible: chart.isDatasetVisible(i),\n                    index: i,\n                    fill: _decodeFill(line, i, count),\n                    chart,\n                    axis: meta.controller.options.indexAxis,\n                    scale: meta.vScale,\n                    line\n                };\n            }\n            meta.$filler = source;\n            sources.push(source);\n        }\n        for(i = 0; i < count; ++i){\n            source = sources[i];\n            if (!source || source.fill === false) {\n                continue;\n            }\n            source.fill = _resolveTarget(sources, i, options.propagate);\n        }\n    },\n    beforeDraw (chart, _args, options) {\n        const draw = options.drawTime === 'beforeDraw';\n        const metasets = chart.getSortedVisibleDatasetMetas();\n        const area = chart.chartArea;\n        for(let i = metasets.length - 1; i >= 0; --i){\n            const source = metasets[i].$filler;\n            if (!source) {\n                continue;\n            }\n            source.line.updateControlPoints(area, source.axis);\n            if (draw && source.fill) {\n                _drawfill(chart.ctx, source, area);\n            }\n        }\n    },\n    beforeDatasetsDraw (chart, _args, options) {\n        if (options.drawTime !== 'beforeDatasetsDraw') {\n            return;\n        }\n        const metasets = chart.getSortedVisibleDatasetMetas();\n        for(let i = metasets.length - 1; i >= 0; --i){\n            const source = metasets[i].$filler;\n            if (_shouldApplyFill(source)) {\n                _drawfill(chart.ctx, source, chart.chartArea);\n            }\n        }\n    },\n    beforeDatasetDraw (chart, args, options) {\n        const source = args.meta.$filler;\n        if (!_shouldApplyFill(source) || options.drawTime !== 'beforeDatasetDraw') {\n            return;\n        }\n        _drawfill(chart.ctx, source, chart.chartArea);\n    },\n    defaults: {\n        propagate: true,\n        drawTime: 'beforeDatasetDraw'\n    }\n};\n\nconst getBoxSize = (labelOpts, fontSize)=>{\n    let { boxHeight =fontSize , boxWidth =fontSize  } = labelOpts;\n    if (labelOpts.usePointStyle) {\n        boxHeight = Math.min(boxHeight, fontSize);\n        boxWidth = labelOpts.pointStyleWidth || Math.min(boxWidth, fontSize);\n    }\n    return {\n        boxWidth,\n        boxHeight,\n        itemHeight: Math.max(fontSize, boxHeight)\n    };\n};\nconst itemsEqual = (a, b)=>a !== null && b !== null && a.datasetIndex === b.datasetIndex && a.index === b.index;\nclass Legend extends Element {\n constructor(config){\n        super();\n        this._added = false;\n        this.legendHitBoxes = [];\n this._hoveredItem = null;\n        this.doughnutMode = false;\n        this.chart = config.chart;\n        this.options = config.options;\n        this.ctx = config.ctx;\n        this.legendItems = undefined;\n        this.columnSizes = undefined;\n        this.lineWidths = undefined;\n        this.maxHeight = undefined;\n        this.maxWidth = undefined;\n        this.top = undefined;\n        this.bottom = undefined;\n        this.left = undefined;\n        this.right = undefined;\n        this.height = undefined;\n        this.width = undefined;\n        this._margins = undefined;\n        this.position = undefined;\n        this.weight = undefined;\n        this.fullSize = undefined;\n    }\n    update(maxWidth, maxHeight, margins) {\n        this.maxWidth = maxWidth;\n        this.maxHeight = maxHeight;\n        this._margins = margins;\n        this.setDimensions();\n        this.buildLabels();\n        this.fit();\n    }\n    setDimensions() {\n        if (this.isHorizontal()) {\n            this.width = this.maxWidth;\n            this.left = this._margins.left;\n            this.right = this.width;\n        } else {\n            this.height = this.maxHeight;\n            this.top = this._margins.top;\n            this.bottom = this.height;\n        }\n    }\n    buildLabels() {\n        const labelOpts = this.options.labels || {};\n        let legendItems = callback(labelOpts.generateLabels, [\n            this.chart\n        ], this) || [];\n        if (labelOpts.filter) {\n            legendItems = legendItems.filter((item)=>labelOpts.filter(item, this.chart.data));\n        }\n        if (labelOpts.sort) {\n            legendItems = legendItems.sort((a, b)=>labelOpts.sort(a, b, this.chart.data));\n        }\n        if (this.options.reverse) {\n            legendItems.reverse();\n        }\n        this.legendItems = legendItems;\n    }\n    fit() {\n        const { options , ctx  } = this;\n        if (!options.display) {\n            this.width = this.height = 0;\n            return;\n        }\n        const labelOpts = options.labels;\n        const labelFont = toFont(labelOpts.font);\n        const fontSize = labelFont.size;\n        const titleHeight = this._computeTitleHeight();\n        const { boxWidth , itemHeight  } = getBoxSize(labelOpts, fontSize);\n        let width, height;\n        ctx.font = labelFont.string;\n        if (this.isHorizontal()) {\n            width = this.maxWidth;\n            height = this._fitRows(titleHeight, fontSize, boxWidth, itemHeight) + 10;\n        } else {\n            height = this.maxHeight;\n            width = this._fitCols(titleHeight, labelFont, boxWidth, itemHeight) + 10;\n        }\n        this.width = Math.min(width, options.maxWidth || this.maxWidth);\n        this.height = Math.min(height, options.maxHeight || this.maxHeight);\n    }\n _fitRows(titleHeight, fontSize, boxWidth, itemHeight) {\n        const { ctx , maxWidth , options: { labels: { padding  }  }  } = this;\n        const hitboxes = this.legendHitBoxes = [];\n        const lineWidths = this.lineWidths = [\n            0\n        ];\n        const lineHeight = itemHeight + padding;\n        let totalHeight = titleHeight;\n        ctx.textAlign = 'left';\n        ctx.textBaseline = 'middle';\n        let row = -1;\n        let top = -lineHeight;\n        this.legendItems.forEach((legendItem, i)=>{\n            const itemWidth = boxWidth + fontSize / 2 + ctx.measureText(legendItem.text).width;\n            if (i === 0 || lineWidths[lineWidths.length - 1] + itemWidth + 2 * padding > maxWidth) {\n                totalHeight += lineHeight;\n                lineWidths[lineWidths.length - (i > 0 ? 0 : 1)] = 0;\n                top += lineHeight;\n                row++;\n            }\n            hitboxes[i] = {\n                left: 0,\n                top,\n                row,\n                width: itemWidth,\n                height: itemHeight\n            };\n            lineWidths[lineWidths.length - 1] += itemWidth + padding;\n        });\n        return totalHeight;\n    }\n    _fitCols(titleHeight, labelFont, boxWidth, _itemHeight) {\n        const { ctx , maxHeight , options: { labels: { padding  }  }  } = this;\n        const hitboxes = this.legendHitBoxes = [];\n        const columnSizes = this.columnSizes = [];\n        const heightLimit = maxHeight - titleHeight;\n        let totalWidth = padding;\n        let currentColWidth = 0;\n        let currentColHeight = 0;\n        let left = 0;\n        let col = 0;\n        this.legendItems.forEach((legendItem, i)=>{\n            const { itemWidth , itemHeight  } = calculateItemSize(boxWidth, labelFont, ctx, legendItem, _itemHeight);\n            if (i > 0 && currentColHeight + itemHeight + 2 * padding > heightLimit) {\n                totalWidth += currentColWidth + padding;\n                columnSizes.push({\n                    width: currentColWidth,\n                    height: currentColHeight\n                });\n                left += currentColWidth + padding;\n                col++;\n                currentColWidth = currentColHeight = 0;\n            }\n            hitboxes[i] = {\n                left,\n                top: currentColHeight,\n                col,\n                width: itemWidth,\n                height: itemHeight\n            };\n            currentColWidth = Math.max(currentColWidth, itemWidth);\n            currentColHeight += itemHeight + padding;\n        });\n        totalWidth += currentColWidth;\n        columnSizes.push({\n            width: currentColWidth,\n            height: currentColHeight\n        });\n        return totalWidth;\n    }\n    adjustHitBoxes() {\n        if (!this.options.display) {\n            return;\n        }\n        const titleHeight = this._computeTitleHeight();\n        const { legendHitBoxes: hitboxes , options: { align , labels: { padding  } , rtl  }  } = this;\n        const rtlHelper = getRtlAdapter(rtl, this.left, this.width);\n        if (this.isHorizontal()) {\n            let row = 0;\n            let left = _alignStartEnd(align, this.left + padding, this.right - this.lineWidths[row]);\n            for (const hitbox of hitboxes){\n                if (row !== hitbox.row) {\n                    row = hitbox.row;\n                    left = _alignStartEnd(align, this.left + padding, this.right - this.lineWidths[row]);\n                }\n                hitbox.top += this.top + titleHeight + padding;\n                hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(left), hitbox.width);\n                left += hitbox.width + padding;\n            }\n        } else {\n            let col = 0;\n            let top = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height);\n            for (const hitbox of hitboxes){\n                if (hitbox.col !== col) {\n                    col = hitbox.col;\n                    top = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height);\n                }\n                hitbox.top = top;\n                hitbox.left += this.left + padding;\n                hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(hitbox.left), hitbox.width);\n                top += hitbox.height + padding;\n            }\n        }\n    }\n    isHorizontal() {\n        return this.options.position === 'top' || this.options.position === 'bottom';\n    }\n    draw() {\n        if (this.options.display) {\n            const ctx = this.ctx;\n            clipArea(ctx, this);\n            this._draw();\n            unclipArea(ctx);\n        }\n    }\n _draw() {\n        const { options: opts , columnSizes , lineWidths , ctx  } = this;\n        const { align , labels: labelOpts  } = opts;\n        const defaultColor = defaults.color;\n        const rtlHelper = getRtlAdapter(opts.rtl, this.left, this.width);\n        const labelFont = toFont(labelOpts.font);\n        const { padding  } = labelOpts;\n        const fontSize = labelFont.size;\n        const halfFontSize = fontSize / 2;\n        let cursor;\n        this.drawTitle();\n        ctx.textAlign = rtlHelper.textAlign('left');\n        ctx.textBaseline = 'middle';\n        ctx.lineWidth = 0.5;\n        ctx.font = labelFont.string;\n        const { boxWidth , boxHeight , itemHeight  } = getBoxSize(labelOpts, fontSize);\n        const drawLegendBox = function(x, y, legendItem) {\n            if (isNaN(boxWidth) || boxWidth <= 0 || isNaN(boxHeight) || boxHeight < 0) {\n                return;\n            }\n            ctx.save();\n            const lineWidth = valueOrDefault(legendItem.lineWidth, 1);\n            ctx.fillStyle = valueOrDefault(legendItem.fillStyle, defaultColor);\n            ctx.lineCap = valueOrDefault(legendItem.lineCap, 'butt');\n            ctx.lineDashOffset = valueOrDefault(legendItem.lineDashOffset, 0);\n            ctx.lineJoin = valueOrDefault(legendItem.lineJoin, 'miter');\n            ctx.lineWidth = lineWidth;\n            ctx.strokeStyle = valueOrDefault(legendItem.strokeStyle, defaultColor);\n            ctx.setLineDash(valueOrDefault(legendItem.lineDash, []));\n            if (labelOpts.usePointStyle) {\n                const drawOptions = {\n                    radius: boxHeight * Math.SQRT2 / 2,\n                    pointStyle: legendItem.pointStyle,\n                    rotation: legendItem.rotation,\n                    borderWidth: lineWidth\n                };\n                const centerX = rtlHelper.xPlus(x, boxWidth / 2);\n                const centerY = y + halfFontSize;\n                drawPointLegend(ctx, drawOptions, centerX, centerY, labelOpts.pointStyleWidth && boxWidth);\n            } else {\n                const yBoxTop = y + Math.max((fontSize - boxHeight) / 2, 0);\n                const xBoxLeft = rtlHelper.leftForLtr(x, boxWidth);\n                const borderRadius = toTRBLCorners(legendItem.borderRadius);\n                ctx.beginPath();\n                if (Object.values(borderRadius).some((v)=>v !== 0)) {\n                    addRoundedRectPath(ctx, {\n                        x: xBoxLeft,\n                        y: yBoxTop,\n                        w: boxWidth,\n                        h: boxHeight,\n                        radius: borderRadius\n                    });\n                } else {\n                    ctx.rect(xBoxLeft, yBoxTop, boxWidth, boxHeight);\n                }\n                ctx.fill();\n                if (lineWidth !== 0) {\n                    ctx.stroke();\n                }\n            }\n            ctx.restore();\n        };\n        const fillText = function(x, y, legendItem) {\n            renderText(ctx, legendItem.text, x, y + itemHeight / 2, labelFont, {\n                strikethrough: legendItem.hidden,\n                textAlign: rtlHelper.textAlign(legendItem.textAlign)\n            });\n        };\n        const isHorizontal = this.isHorizontal();\n        const titleHeight = this._computeTitleHeight();\n        if (isHorizontal) {\n            cursor = {\n                x: _alignStartEnd(align, this.left + padding, this.right - lineWidths[0]),\n                y: this.top + padding + titleHeight,\n                line: 0\n            };\n        } else {\n            cursor = {\n                x: this.left + padding,\n                y: _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - columnSizes[0].height),\n                line: 0\n            };\n        }\n        overrideTextDirection(this.ctx, opts.textDirection);\n        const lineHeight = itemHeight + padding;\n        this.legendItems.forEach((legendItem, i)=>{\n            ctx.strokeStyle = legendItem.fontColor;\n            ctx.fillStyle = legendItem.fontColor;\n            const textWidth = ctx.measureText(legendItem.text).width;\n            const textAlign = rtlHelper.textAlign(legendItem.textAlign || (legendItem.textAlign = labelOpts.textAlign));\n            const width = boxWidth + halfFontSize + textWidth;\n            let x = cursor.x;\n            let y = cursor.y;\n            rtlHelper.setWidth(this.width);\n            if (isHorizontal) {\n                if (i > 0 && x + width + padding > this.right) {\n                    y = cursor.y += lineHeight;\n                    cursor.line++;\n                    x = cursor.x = _alignStartEnd(align, this.left + padding, this.right - lineWidths[cursor.line]);\n                }\n            } else if (i > 0 && y + lineHeight > this.bottom) {\n                x = cursor.x = x + columnSizes[cursor.line].width + padding;\n                cursor.line++;\n                y = cursor.y = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - columnSizes[cursor.line].height);\n            }\n            const realX = rtlHelper.x(x);\n            drawLegendBox(realX, y, legendItem);\n            x = _textX(textAlign, x + boxWidth + halfFontSize, isHorizontal ? x + width : this.right, opts.rtl);\n            fillText(rtlHelper.x(x), y, legendItem);\n            if (isHorizontal) {\n                cursor.x += width + padding;\n            } else if (typeof legendItem.text !== 'string') {\n                const fontLineHeight = labelFont.lineHeight;\n                cursor.y += calculateLegendItemHeight(legendItem, fontLineHeight);\n            } else {\n                cursor.y += lineHeight;\n            }\n        });\n        restoreTextDirection(this.ctx, opts.textDirection);\n    }\n drawTitle() {\n        const opts = this.options;\n        const titleOpts = opts.title;\n        const titleFont = toFont(titleOpts.font);\n        const titlePadding = toPadding(titleOpts.padding);\n        if (!titleOpts.display) {\n            return;\n        }\n        const rtlHelper = getRtlAdapter(opts.rtl, this.left, this.width);\n        const ctx = this.ctx;\n        const position = titleOpts.position;\n        const halfFontSize = titleFont.size / 2;\n        const topPaddingPlusHalfFontSize = titlePadding.top + halfFontSize;\n        let y;\n        let left = this.left;\n        let maxWidth = this.width;\n        if (this.isHorizontal()) {\n            maxWidth = Math.max(...this.lineWidths);\n            y = this.top + topPaddingPlusHalfFontSize;\n            left = _alignStartEnd(opts.align, left, this.right - maxWidth);\n        } else {\n            const maxHeight = this.columnSizes.reduce((acc, size)=>Math.max(acc, size.height), 0);\n            y = topPaddingPlusHalfFontSize + _alignStartEnd(opts.align, this.top, this.bottom - maxHeight - opts.labels.padding - this._computeTitleHeight());\n        }\n        const x = _alignStartEnd(position, left, left + maxWidth);\n        ctx.textAlign = rtlHelper.textAlign(_toLeftRightCenter(position));\n        ctx.textBaseline = 'middle';\n        ctx.strokeStyle = titleOpts.color;\n        ctx.fillStyle = titleOpts.color;\n        ctx.font = titleFont.string;\n        renderText(ctx, titleOpts.text, x, y, titleFont);\n    }\n _computeTitleHeight() {\n        const titleOpts = this.options.title;\n        const titleFont = toFont(titleOpts.font);\n        const titlePadding = toPadding(titleOpts.padding);\n        return titleOpts.display ? titleFont.lineHeight + titlePadding.height : 0;\n    }\n _getLegendItemAt(x, y) {\n        let i, hitBox, lh;\n        if (_isBetween(x, this.left, this.right) && _isBetween(y, this.top, this.bottom)) {\n            lh = this.legendHitBoxes;\n            for(i = 0; i < lh.length; ++i){\n                hitBox = lh[i];\n                if (_isBetween(x, hitBox.left, hitBox.left + hitBox.width) && _isBetween(y, hitBox.top, hitBox.top + hitBox.height)) {\n                    return this.legendItems[i];\n                }\n            }\n        }\n        return null;\n    }\n handleEvent(e) {\n        const opts = this.options;\n        if (!isListened(e.type, opts)) {\n            return;\n        }\n        const hoveredItem = this._getLegendItemAt(e.x, e.y);\n        if (e.type === 'mousemove' || e.type === 'mouseout') {\n            const previous = this._hoveredItem;\n            const sameItem = itemsEqual(previous, hoveredItem);\n            if (previous && !sameItem) {\n                callback(opts.onLeave, [\n                    e,\n                    previous,\n                    this\n                ], this);\n            }\n            this._hoveredItem = hoveredItem;\n            if (hoveredItem && !sameItem) {\n                callback(opts.onHover, [\n                    e,\n                    hoveredItem,\n                    this\n                ], this);\n            }\n        } else if (hoveredItem) {\n            callback(opts.onClick, [\n                e,\n                hoveredItem,\n                this\n            ], this);\n        }\n    }\n}\nfunction calculateItemSize(boxWidth, labelFont, ctx, legendItem, _itemHeight) {\n    const itemWidth = calculateItemWidth(legendItem, boxWidth, labelFont, ctx);\n    const itemHeight = calculateItemHeight(_itemHeight, legendItem, labelFont.lineHeight);\n    return {\n        itemWidth,\n        itemHeight\n    };\n}\nfunction calculateItemWidth(legendItem, boxWidth, labelFont, ctx) {\n    let legendItemText = legendItem.text;\n    if (legendItemText && typeof legendItemText !== 'string') {\n        legendItemText = legendItemText.reduce((a, b)=>a.length > b.length ? a : b);\n    }\n    return boxWidth + labelFont.size / 2 + ctx.measureText(legendItemText).width;\n}\nfunction calculateItemHeight(_itemHeight, legendItem, fontLineHeight) {\n    let itemHeight = _itemHeight;\n    if (typeof legendItem.text !== 'string') {\n        itemHeight = calculateLegendItemHeight(legendItem, fontLineHeight);\n    }\n    return itemHeight;\n}\nfunction calculateLegendItemHeight(legendItem, fontLineHeight) {\n    const labelHeight = legendItem.text ? legendItem.text.length + 0.5 : 0;\n    return fontLineHeight * labelHeight;\n}\nfunction isListened(type, opts) {\n    if ((type === 'mousemove' || type === 'mouseout') && (opts.onHover || opts.onLeave)) {\n        return true;\n    }\n    if (opts.onClick && (type === 'click' || type === 'mouseup')) {\n        return true;\n    }\n    return false;\n}\nvar plugin_legend = {\n    id: 'legend',\n _element: Legend,\n    start (chart, _args, options) {\n        const legend = chart.legend = new Legend({\n            ctx: chart.ctx,\n            options,\n            chart\n        });\n        layouts.configure(chart, legend, options);\n        layouts.addBox(chart, legend);\n    },\n    stop (chart) {\n        layouts.removeBox(chart, chart.legend);\n        delete chart.legend;\n    },\n    beforeUpdate (chart, _args, options) {\n        const legend = chart.legend;\n        layouts.configure(chart, legend, options);\n        legend.options = options;\n    },\n    afterUpdate (chart) {\n        const legend = chart.legend;\n        legend.buildLabels();\n        legend.adjustHitBoxes();\n    },\n    afterEvent (chart, args) {\n        if (!args.replay) {\n            chart.legend.handleEvent(args.event);\n        }\n    },\n    defaults: {\n        display: true,\n        position: 'top',\n        align: 'center',\n        fullSize: true,\n        reverse: false,\n        weight: 1000,\n        onClick (e, legendItem, legend) {\n            const index = legendItem.datasetIndex;\n            const ci = legend.chart;\n            if (ci.isDatasetVisible(index)) {\n                ci.hide(index);\n                legendItem.hidden = true;\n            } else {\n                ci.show(index);\n                legendItem.hidden = false;\n            }\n        },\n        onHover: null,\n        onLeave: null,\n        labels: {\n            color: (ctx)=>ctx.chart.options.color,\n            boxWidth: 40,\n            padding: 10,\n            generateLabels (chart) {\n                const datasets = chart.data.datasets;\n                const { labels: { usePointStyle , pointStyle , textAlign , color , useBorderRadius , borderRadius  }  } = chart.legend.options;\n                return chart._getSortedDatasetMetas().map((meta)=>{\n                    const style = meta.controller.getStyle(usePointStyle ? 0 : undefined);\n                    const borderWidth = toPadding(style.borderWidth);\n                    return {\n                        text: datasets[meta.index].label,\n                        fillStyle: style.backgroundColor,\n                        fontColor: color,\n                        hidden: !meta.visible,\n                        lineCap: style.borderCapStyle,\n                        lineDash: style.borderDash,\n                        lineDashOffset: style.borderDashOffset,\n                        lineJoin: style.borderJoinStyle,\n                        lineWidth: (borderWidth.width + borderWidth.height) / 4,\n                        strokeStyle: style.borderColor,\n                        pointStyle: pointStyle || style.pointStyle,\n                        rotation: style.rotation,\n                        textAlign: textAlign || style.textAlign,\n                        borderRadius: useBorderRadius && (borderRadius || style.borderRadius),\n                        datasetIndex: meta.index\n                    };\n                }, this);\n            }\n        },\n        title: {\n            color: (ctx)=>ctx.chart.options.color,\n            display: false,\n            position: 'center',\n            text: ''\n        }\n    },\n    descriptors: {\n        _scriptable: (name)=>!name.startsWith('on'),\n        labels: {\n            _scriptable: (name)=>![\n                    'generateLabels',\n                    'filter',\n                    'sort'\n                ].includes(name)\n        }\n    }\n};\n\nclass Title extends Element {\n constructor(config){\n        super();\n        this.chart = config.chart;\n        this.options = config.options;\n        this.ctx = config.ctx;\n        this._padding = undefined;\n        this.top = undefined;\n        this.bottom = undefined;\n        this.left = undefined;\n        this.right = undefined;\n        this.width = undefined;\n        this.height = undefined;\n        this.position = undefined;\n        this.weight = undefined;\n        this.fullSize = undefined;\n    }\n    update(maxWidth, maxHeight) {\n        const opts = this.options;\n        this.left = 0;\n        this.top = 0;\n        if (!opts.display) {\n            this.width = this.height = this.right = this.bottom = 0;\n            return;\n        }\n        this.width = this.right = maxWidth;\n        this.height = this.bottom = maxHeight;\n        const lineCount = isArray(opts.text) ? opts.text.length : 1;\n        this._padding = toPadding(opts.padding);\n        const textSize = lineCount * toFont(opts.font).lineHeight + this._padding.height;\n        if (this.isHorizontal()) {\n            this.height = textSize;\n        } else {\n            this.width = textSize;\n        }\n    }\n    isHorizontal() {\n        const pos = this.options.position;\n        return pos === 'top' || pos === 'bottom';\n    }\n    _drawArgs(offset) {\n        const { top , left , bottom , right , options  } = this;\n        const align = options.align;\n        let rotation = 0;\n        let maxWidth, titleX, titleY;\n        if (this.isHorizontal()) {\n            titleX = _alignStartEnd(align, left, right);\n            titleY = top + offset;\n            maxWidth = right - left;\n        } else {\n            if (options.position === 'left') {\n                titleX = left + offset;\n                titleY = _alignStartEnd(align, bottom, top);\n                rotation = PI * -0.5;\n            } else {\n                titleX = right - offset;\n                titleY = _alignStartEnd(align, top, bottom);\n                rotation = PI * 0.5;\n            }\n            maxWidth = bottom - top;\n        }\n        return {\n            titleX,\n            titleY,\n            maxWidth,\n            rotation\n        };\n    }\n    draw() {\n        const ctx = this.ctx;\n        const opts = this.options;\n        if (!opts.display) {\n            return;\n        }\n        const fontOpts = toFont(opts.font);\n        const lineHeight = fontOpts.lineHeight;\n        const offset = lineHeight / 2 + this._padding.top;\n        const { titleX , titleY , maxWidth , rotation  } = this._drawArgs(offset);\n        renderText(ctx, opts.text, 0, 0, fontOpts, {\n            color: opts.color,\n            maxWidth,\n            rotation,\n            textAlign: _toLeftRightCenter(opts.align),\n            textBaseline: 'middle',\n            translation: [\n                titleX,\n                titleY\n            ]\n        });\n    }\n}\nfunction createTitle(chart, titleOpts) {\n    const title = new Title({\n        ctx: chart.ctx,\n        options: titleOpts,\n        chart\n    });\n    layouts.configure(chart, title, titleOpts);\n    layouts.addBox(chart, title);\n    chart.titleBlock = title;\n}\nvar plugin_title = {\n    id: 'title',\n _element: Title,\n    start (chart, _args, options) {\n        createTitle(chart, options);\n    },\n    stop (chart) {\n        const titleBlock = chart.titleBlock;\n        layouts.removeBox(chart, titleBlock);\n        delete chart.titleBlock;\n    },\n    beforeUpdate (chart, _args, options) {\n        const title = chart.titleBlock;\n        layouts.configure(chart, title, options);\n        title.options = options;\n    },\n    defaults: {\n        align: 'center',\n        display: false,\n        font: {\n            weight: 'bold'\n        },\n        fullSize: true,\n        padding: 10,\n        position: 'top',\n        text: '',\n        weight: 2000\n    },\n    defaultRoutes: {\n        color: 'color'\n    },\n    descriptors: {\n        _scriptable: true,\n        _indexable: false\n    }\n};\n\nconst map = new WeakMap();\nvar plugin_subtitle = {\n    id: 'subtitle',\n    start (chart, _args, options) {\n        const title = new Title({\n            ctx: chart.ctx,\n            options,\n            chart\n        });\n        layouts.configure(chart, title, options);\n        layouts.addBox(chart, title);\n        map.set(chart, title);\n    },\n    stop (chart) {\n        layouts.removeBox(chart, map.get(chart));\n        map.delete(chart);\n    },\n    beforeUpdate (chart, _args, options) {\n        const title = map.get(chart);\n        layouts.configure(chart, title, options);\n        title.options = options;\n    },\n    defaults: {\n        align: 'center',\n        display: false,\n        font: {\n            weight: 'normal'\n        },\n        fullSize: true,\n        padding: 0,\n        position: 'top',\n        text: '',\n        weight: 1500\n    },\n    defaultRoutes: {\n        color: 'color'\n    },\n    descriptors: {\n        _scriptable: true,\n        _indexable: false\n    }\n};\n\nconst positioners = {\n average (items) {\n        if (!items.length) {\n            return false;\n        }\n        let i, len;\n        let x = 0;\n        let y = 0;\n        let count = 0;\n        for(i = 0, len = items.length; i < len; ++i){\n            const el = items[i].element;\n            if (el && el.hasValue()) {\n                const pos = el.tooltipPosition();\n                x += pos.x;\n                y += pos.y;\n                ++count;\n            }\n        }\n        return {\n            x: x / count,\n            y: y / count\n        };\n    },\n nearest (items, eventPosition) {\n        if (!items.length) {\n            return false;\n        }\n        let x = eventPosition.x;\n        let y = eventPosition.y;\n        let minDistance = Number.POSITIVE_INFINITY;\n        let i, len, nearestElement;\n        for(i = 0, len = items.length; i < len; ++i){\n            const el = items[i].element;\n            if (el && el.hasValue()) {\n                const center = el.getCenterPoint();\n                const d = distanceBetweenPoints(eventPosition, center);\n                if (d < minDistance) {\n                    minDistance = d;\n                    nearestElement = el;\n                }\n            }\n        }\n        if (nearestElement) {\n            const tp = nearestElement.tooltipPosition();\n            x = tp.x;\n            y = tp.y;\n        }\n        return {\n            x,\n            y\n        };\n    }\n};\nfunction pushOrConcat(base, toPush) {\n    if (toPush) {\n        if (isArray(toPush)) {\n            Array.prototype.push.apply(base, toPush);\n        } else {\n            base.push(toPush);\n        }\n    }\n    return base;\n}\n function splitNewlines(str) {\n    if ((typeof str === 'string' || str instanceof String) && str.indexOf('\\n') > -1) {\n        return str.split('\\n');\n    }\n    return str;\n}\n function createTooltipItem(chart, item) {\n    const { element , datasetIndex , index  } = item;\n    const controller = chart.getDatasetMeta(datasetIndex).controller;\n    const { label , value  } = controller.getLabelAndValue(index);\n    return {\n        chart,\n        label,\n        parsed: controller.getParsed(index),\n        raw: chart.data.datasets[datasetIndex].data[index],\n        formattedValue: value,\n        dataset: controller.getDataset(),\n        dataIndex: index,\n        datasetIndex,\n        element\n    };\n}\n function getTooltipSize(tooltip, options) {\n    const ctx = tooltip.chart.ctx;\n    const { body , footer , title  } = tooltip;\n    const { boxWidth , boxHeight  } = options;\n    const bodyFont = toFont(options.bodyFont);\n    const titleFont = toFont(options.titleFont);\n    const footerFont = toFont(options.footerFont);\n    const titleLineCount = title.length;\n    const footerLineCount = footer.length;\n    const bodyLineItemCount = body.length;\n    const padding = toPadding(options.padding);\n    let height = padding.height;\n    let width = 0;\n    let combinedBodyLength = body.reduce((count, bodyItem)=>count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length, 0);\n    combinedBodyLength += tooltip.beforeBody.length + tooltip.afterBody.length;\n    if (titleLineCount) {\n        height += titleLineCount * titleFont.lineHeight + (titleLineCount - 1) * options.titleSpacing + options.titleMarginBottom;\n    }\n    if (combinedBodyLength) {\n        const bodyLineHeight = options.displayColors ? Math.max(boxHeight, bodyFont.lineHeight) : bodyFont.lineHeight;\n        height += bodyLineItemCount * bodyLineHeight + (combinedBodyLength - bodyLineItemCount) * bodyFont.lineHeight + (combinedBodyLength - 1) * options.bodySpacing;\n    }\n    if (footerLineCount) {\n        height += options.footerMarginTop + footerLineCount * footerFont.lineHeight + (footerLineCount - 1) * options.footerSpacing;\n    }\n    let widthPadding = 0;\n    const maxLineWidth = function(line) {\n        width = Math.max(width, ctx.measureText(line).width + widthPadding);\n    };\n    ctx.save();\n    ctx.font = titleFont.string;\n    each(tooltip.title, maxLineWidth);\n    ctx.font = bodyFont.string;\n    each(tooltip.beforeBody.concat(tooltip.afterBody), maxLineWidth);\n    widthPadding = options.displayColors ? boxWidth + 2 + options.boxPadding : 0;\n    each(body, (bodyItem)=>{\n        each(bodyItem.before, maxLineWidth);\n        each(bodyItem.lines, maxLineWidth);\n        each(bodyItem.after, maxLineWidth);\n    });\n    widthPadding = 0;\n    ctx.font = footerFont.string;\n    each(tooltip.footer, maxLineWidth);\n    ctx.restore();\n    width += padding.width;\n    return {\n        width,\n        height\n    };\n}\nfunction determineYAlign(chart, size) {\n    const { y , height  } = size;\n    if (y < height / 2) {\n        return 'top';\n    } else if (y > chart.height - height / 2) {\n        return 'bottom';\n    }\n    return 'center';\n}\nfunction doesNotFitWithAlign(xAlign, chart, options, size) {\n    const { x , width  } = size;\n    const caret = options.caretSize + options.caretPadding;\n    if (xAlign === 'left' && x + width + caret > chart.width) {\n        return true;\n    }\n    if (xAlign === 'right' && x - width - caret < 0) {\n        return true;\n    }\n}\nfunction determineXAlign(chart, options, size, yAlign) {\n    const { x , width  } = size;\n    const { width: chartWidth , chartArea: { left , right  }  } = chart;\n    let xAlign = 'center';\n    if (yAlign === 'center') {\n        xAlign = x <= (left + right) / 2 ? 'left' : 'right';\n    } else if (x <= width / 2) {\n        xAlign = 'left';\n    } else if (x >= chartWidth - width / 2) {\n        xAlign = 'right';\n    }\n    if (doesNotFitWithAlign(xAlign, chart, options, size)) {\n        xAlign = 'center';\n    }\n    return xAlign;\n}\n function determineAlignment(chart, options, size) {\n    const yAlign = size.yAlign || options.yAlign || determineYAlign(chart, size);\n    return {\n        xAlign: size.xAlign || options.xAlign || determineXAlign(chart, options, size, yAlign),\n        yAlign\n    };\n}\nfunction alignX(size, xAlign) {\n    let { x , width  } = size;\n    if (xAlign === 'right') {\n        x -= width;\n    } else if (xAlign === 'center') {\n        x -= width / 2;\n    }\n    return x;\n}\nfunction alignY(size, yAlign, paddingAndSize) {\n    let { y , height  } = size;\n    if (yAlign === 'top') {\n        y += paddingAndSize;\n    } else if (yAlign === 'bottom') {\n        y -= height + paddingAndSize;\n    } else {\n        y -= height / 2;\n    }\n    return y;\n}\n function getBackgroundPoint(options, size, alignment, chart) {\n    const { caretSize , caretPadding , cornerRadius  } = options;\n    const { xAlign , yAlign  } = alignment;\n    const paddingAndSize = caretSize + caretPadding;\n    const { topLeft , topRight , bottomLeft , bottomRight  } = toTRBLCorners(cornerRadius);\n    let x = alignX(size, xAlign);\n    const y = alignY(size, yAlign, paddingAndSize);\n    if (yAlign === 'center') {\n        if (xAlign === 'left') {\n            x += paddingAndSize;\n        } else if (xAlign === 'right') {\n            x -= paddingAndSize;\n        }\n    } else if (xAlign === 'left') {\n        x -= Math.max(topLeft, bottomLeft) + caretSize;\n    } else if (xAlign === 'right') {\n        x += Math.max(topRight, bottomRight) + caretSize;\n    }\n    return {\n        x: _limitValue(x, 0, chart.width - size.width),\n        y: _limitValue(y, 0, chart.height - size.height)\n    };\n}\nfunction getAlignedX(tooltip, align, options) {\n    const padding = toPadding(options.padding);\n    return align === 'center' ? tooltip.x + tooltip.width / 2 : align === 'right' ? tooltip.x + tooltip.width - padding.right : tooltip.x + padding.left;\n}\n function getBeforeAfterBodyLines(callback) {\n    return pushOrConcat([], splitNewlines(callback));\n}\nfunction createTooltipContext(parent, tooltip, tooltipItems) {\n    return createContext(parent, {\n        tooltip,\n        tooltipItems,\n        type: 'tooltip'\n    });\n}\nfunction overrideCallbacks(callbacks, context) {\n    const override = context && context.dataset && context.dataset.tooltip && context.dataset.tooltip.callbacks;\n    return override ? callbacks.override(override) : callbacks;\n}\nconst defaultCallbacks = {\n    beforeTitle: noop,\n    title (tooltipItems) {\n        if (tooltipItems.length > 0) {\n            const item = tooltipItems[0];\n            const labels = item.chart.data.labels;\n            const labelCount = labels ? labels.length : 0;\n            if (this && this.options && this.options.mode === 'dataset') {\n                return item.dataset.label || '';\n            } else if (item.label) {\n                return item.label;\n            } else if (labelCount > 0 && item.dataIndex < labelCount) {\n                return labels[item.dataIndex];\n            }\n        }\n        return '';\n    },\n    afterTitle: noop,\n    beforeBody: noop,\n    beforeLabel: noop,\n    label (tooltipItem) {\n        if (this && this.options && this.options.mode === 'dataset') {\n            return tooltipItem.label + ': ' + tooltipItem.formattedValue || tooltipItem.formattedValue;\n        }\n        let label = tooltipItem.dataset.label || '';\n        if (label) {\n            label += ': ';\n        }\n        const value = tooltipItem.formattedValue;\n        if (!isNullOrUndef(value)) {\n            label += value;\n        }\n        return label;\n    },\n    labelColor (tooltipItem) {\n        const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex);\n        const options = meta.controller.getStyle(tooltipItem.dataIndex);\n        return {\n            borderColor: options.borderColor,\n            backgroundColor: options.backgroundColor,\n            borderWidth: options.borderWidth,\n            borderDash: options.borderDash,\n            borderDashOffset: options.borderDashOffset,\n            borderRadius: 0\n        };\n    },\n    labelTextColor () {\n        return this.options.bodyColor;\n    },\n    labelPointStyle (tooltipItem) {\n        const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex);\n        const options = meta.controller.getStyle(tooltipItem.dataIndex);\n        return {\n            pointStyle: options.pointStyle,\n            rotation: options.rotation\n        };\n    },\n    afterLabel: noop,\n    afterBody: noop,\n    beforeFooter: noop,\n    footer: noop,\n    afterFooter: noop\n};\n function invokeCallbackWithFallback(callbacks, name, ctx, arg) {\n    const result = callbacks[name].call(ctx, arg);\n    if (typeof result === 'undefined') {\n        return defaultCallbacks[name].call(ctx, arg);\n    }\n    return result;\n}\nclass Tooltip extends Element {\n static positioners = positioners;\n    constructor(config){\n        super();\n        this.opacity = 0;\n        this._active = [];\n        this._eventPosition = undefined;\n        this._size = undefined;\n        this._cachedAnimations = undefined;\n        this._tooltipItems = [];\n        this.$animations = undefined;\n        this.$context = undefined;\n        this.chart = config.chart;\n        this.options = config.options;\n        this.dataPoints = undefined;\n        this.title = undefined;\n        this.beforeBody = undefined;\n        this.body = undefined;\n        this.afterBody = undefined;\n        this.footer = undefined;\n        this.xAlign = undefined;\n        this.yAlign = undefined;\n        this.x = undefined;\n        this.y = undefined;\n        this.height = undefined;\n        this.width = undefined;\n        this.caretX = undefined;\n        this.caretY = undefined;\n        this.labelColors = undefined;\n        this.labelPointStyles = undefined;\n        this.labelTextColors = undefined;\n    }\n    initialize(options) {\n        this.options = options;\n        this._cachedAnimations = undefined;\n        this.$context = undefined;\n    }\n _resolveAnimations() {\n        const cached = this._cachedAnimations;\n        if (cached) {\n            return cached;\n        }\n        const chart = this.chart;\n        const options = this.options.setContext(this.getContext());\n        const opts = options.enabled && chart.options.animation && options.animations;\n        const animations = new Animations(this.chart, opts);\n        if (opts._cacheable) {\n            this._cachedAnimations = Object.freeze(animations);\n        }\n        return animations;\n    }\n getContext() {\n        return this.$context || (this.$context = createTooltipContext(this.chart.getContext(), this, this._tooltipItems));\n    }\n    getTitle(context, options) {\n        const { callbacks  } = options;\n        const beforeTitle = invokeCallbackWithFallback(callbacks, 'beforeTitle', this, context);\n        const title = invokeCallbackWithFallback(callbacks, 'title', this, context);\n        const afterTitle = invokeCallbackWithFallback(callbacks, 'afterTitle', this, context);\n        let lines = [];\n        lines = pushOrConcat(lines, splitNewlines(beforeTitle));\n        lines = pushOrConcat(lines, splitNewlines(title));\n        lines = pushOrConcat(lines, splitNewlines(afterTitle));\n        return lines;\n    }\n    getBeforeBody(tooltipItems, options) {\n        return getBeforeAfterBodyLines(invokeCallbackWithFallback(options.callbacks, 'beforeBody', this, tooltipItems));\n    }\n    getBody(tooltipItems, options) {\n        const { callbacks  } = options;\n        const bodyItems = [];\n        each(tooltipItems, (context)=>{\n            const bodyItem = {\n                before: [],\n                lines: [],\n                after: []\n            };\n            const scoped = overrideCallbacks(callbacks, context);\n            pushOrConcat(bodyItem.before, splitNewlines(invokeCallbackWithFallback(scoped, 'beforeLabel', this, context)));\n            pushOrConcat(bodyItem.lines, invokeCallbackWithFallback(scoped, 'label', this, context));\n            pushOrConcat(bodyItem.after, splitNewlines(invokeCallbackWithFallback(scoped, 'afterLabel', this, context)));\n            bodyItems.push(bodyItem);\n        });\n        return bodyItems;\n    }\n    getAfterBody(tooltipItems, options) {\n        return getBeforeAfterBodyLines(invokeCallbackWithFallback(options.callbacks, 'afterBody', this, tooltipItems));\n    }\n    getFooter(tooltipItems, options) {\n        const { callbacks  } = options;\n        const beforeFooter = invokeCallbackWithFallback(callbacks, 'beforeFooter', this, tooltipItems);\n        const footer = invokeCallbackWithFallback(callbacks, 'footer', this, tooltipItems);\n        const afterFooter = invokeCallbackWithFallback(callbacks, 'afterFooter', this, tooltipItems);\n        let lines = [];\n        lines = pushOrConcat(lines, splitNewlines(beforeFooter));\n        lines = pushOrConcat(lines, splitNewlines(footer));\n        lines = pushOrConcat(lines, splitNewlines(afterFooter));\n        return lines;\n    }\n _createItems(options) {\n        const active = this._active;\n        const data = this.chart.data;\n        const labelColors = [];\n        const labelPointStyles = [];\n        const labelTextColors = [];\n        let tooltipItems = [];\n        let i, len;\n        for(i = 0, len = active.length; i < len; ++i){\n            tooltipItems.push(createTooltipItem(this.chart, active[i]));\n        }\n        if (options.filter) {\n            tooltipItems = tooltipItems.filter((element, index, array)=>options.filter(element, index, array, data));\n        }\n        if (options.itemSort) {\n            tooltipItems = tooltipItems.sort((a, b)=>options.itemSort(a, b, data));\n        }\n        each(tooltipItems, (context)=>{\n            const scoped = overrideCallbacks(options.callbacks, context);\n            labelColors.push(invokeCallbackWithFallback(scoped, 'labelColor', this, context));\n            labelPointStyles.push(invokeCallbackWithFallback(scoped, 'labelPointStyle', this, context));\n            labelTextColors.push(invokeCallbackWithFallback(scoped, 'labelTextColor', this, context));\n        });\n        this.labelColors = labelColors;\n        this.labelPointStyles = labelPointStyles;\n        this.labelTextColors = labelTextColors;\n        this.dataPoints = tooltipItems;\n        return tooltipItems;\n    }\n    update(changed, replay) {\n        const options = this.options.setContext(this.getContext());\n        const active = this._active;\n        let properties;\n        let tooltipItems = [];\n        if (!active.length) {\n            if (this.opacity !== 0) {\n                properties = {\n                    opacity: 0\n                };\n            }\n        } else {\n            const position = positioners[options.position].call(this, active, this._eventPosition);\n            tooltipItems = this._createItems(options);\n            this.title = this.getTitle(tooltipItems, options);\n            this.beforeBody = this.getBeforeBody(tooltipItems, options);\n            this.body = this.getBody(tooltipItems, options);\n            this.afterBody = this.getAfterBody(tooltipItems, options);\n            this.footer = this.getFooter(tooltipItems, options);\n            const size = this._size = getTooltipSize(this, options);\n            const positionAndSize = Object.assign({}, position, size);\n            const alignment = determineAlignment(this.chart, options, positionAndSize);\n            const backgroundPoint = getBackgroundPoint(options, positionAndSize, alignment, this.chart);\n            this.xAlign = alignment.xAlign;\n            this.yAlign = alignment.yAlign;\n            properties = {\n                opacity: 1,\n                x: backgroundPoint.x,\n                y: backgroundPoint.y,\n                width: size.width,\n                height: size.height,\n                caretX: position.x,\n                caretY: position.y\n            };\n        }\n        this._tooltipItems = tooltipItems;\n        this.$context = undefined;\n        if (properties) {\n            this._resolveAnimations().update(this, properties);\n        }\n        if (changed && options.external) {\n            options.external.call(this, {\n                chart: this.chart,\n                tooltip: this,\n                replay\n            });\n        }\n    }\n    drawCaret(tooltipPoint, ctx, size, options) {\n        const caretPosition = this.getCaretPosition(tooltipPoint, size, options);\n        ctx.lineTo(caretPosition.x1, caretPosition.y1);\n        ctx.lineTo(caretPosition.x2, caretPosition.y2);\n        ctx.lineTo(caretPosition.x3, caretPosition.y3);\n    }\n    getCaretPosition(tooltipPoint, size, options) {\n        const { xAlign , yAlign  } = this;\n        const { caretSize , cornerRadius  } = options;\n        const { topLeft , topRight , bottomLeft , bottomRight  } = toTRBLCorners(cornerRadius);\n        const { x: ptX , y: ptY  } = tooltipPoint;\n        const { width , height  } = size;\n        let x1, x2, x3, y1, y2, y3;\n        if (yAlign === 'center') {\n            y2 = ptY + height / 2;\n            if (xAlign === 'left') {\n                x1 = ptX;\n                x2 = x1 - caretSize;\n                y1 = y2 + caretSize;\n                y3 = y2 - caretSize;\n            } else {\n                x1 = ptX + width;\n                x2 = x1 + caretSize;\n                y1 = y2 - caretSize;\n                y3 = y2 + caretSize;\n            }\n            x3 = x1;\n        } else {\n            if (xAlign === 'left') {\n                x2 = ptX + Math.max(topLeft, bottomLeft) + caretSize;\n            } else if (xAlign === 'right') {\n                x2 = ptX + width - Math.max(topRight, bottomRight) - caretSize;\n            } else {\n                x2 = this.caretX;\n            }\n            if (yAlign === 'top') {\n                y1 = ptY;\n                y2 = y1 - caretSize;\n                x1 = x2 - caretSize;\n                x3 = x2 + caretSize;\n            } else {\n                y1 = ptY + height;\n                y2 = y1 + caretSize;\n                x1 = x2 + caretSize;\n                x3 = x2 - caretSize;\n            }\n            y3 = y1;\n        }\n        return {\n            x1,\n            x2,\n            x3,\n            y1,\n            y2,\n            y3\n        };\n    }\n    drawTitle(pt, ctx, options) {\n        const title = this.title;\n        const length = title.length;\n        let titleFont, titleSpacing, i;\n        if (length) {\n            const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width);\n            pt.x = getAlignedX(this, options.titleAlign, options);\n            ctx.textAlign = rtlHelper.textAlign(options.titleAlign);\n            ctx.textBaseline = 'middle';\n            titleFont = toFont(options.titleFont);\n            titleSpacing = options.titleSpacing;\n            ctx.fillStyle = options.titleColor;\n            ctx.font = titleFont.string;\n            for(i = 0; i < length; ++i){\n                ctx.fillText(title[i], rtlHelper.x(pt.x), pt.y + titleFont.lineHeight / 2);\n                pt.y += titleFont.lineHeight + titleSpacing;\n                if (i + 1 === length) {\n                    pt.y += options.titleMarginBottom - titleSpacing;\n                }\n            }\n        }\n    }\n _drawColorBox(ctx, pt, i, rtlHelper, options) {\n        const labelColor = this.labelColors[i];\n        const labelPointStyle = this.labelPointStyles[i];\n        const { boxHeight , boxWidth  } = options;\n        const bodyFont = toFont(options.bodyFont);\n        const colorX = getAlignedX(this, 'left', options);\n        const rtlColorX = rtlHelper.x(colorX);\n        const yOffSet = boxHeight < bodyFont.lineHeight ? (bodyFont.lineHeight - boxHeight) / 2 : 0;\n        const colorY = pt.y + yOffSet;\n        if (options.usePointStyle) {\n            const drawOptions = {\n                radius: Math.min(boxWidth, boxHeight) / 2,\n                pointStyle: labelPointStyle.pointStyle,\n                rotation: labelPointStyle.rotation,\n                borderWidth: 1\n            };\n            const centerX = rtlHelper.leftForLtr(rtlColorX, boxWidth) + boxWidth / 2;\n            const centerY = colorY + boxHeight / 2;\n            ctx.strokeStyle = options.multiKeyBackground;\n            ctx.fillStyle = options.multiKeyBackground;\n            drawPoint(ctx, drawOptions, centerX, centerY);\n            ctx.strokeStyle = labelColor.borderColor;\n            ctx.fillStyle = labelColor.backgroundColor;\n            drawPoint(ctx, drawOptions, centerX, centerY);\n        } else {\n            ctx.lineWidth = isObject(labelColor.borderWidth) ? Math.max(...Object.values(labelColor.borderWidth)) : labelColor.borderWidth || 1;\n            ctx.strokeStyle = labelColor.borderColor;\n            ctx.setLineDash(labelColor.borderDash || []);\n            ctx.lineDashOffset = labelColor.borderDashOffset || 0;\n            const outerX = rtlHelper.leftForLtr(rtlColorX, boxWidth);\n            const innerX = rtlHelper.leftForLtr(rtlHelper.xPlus(rtlColorX, 1), boxWidth - 2);\n            const borderRadius = toTRBLCorners(labelColor.borderRadius);\n            if (Object.values(borderRadius).some((v)=>v !== 0)) {\n                ctx.beginPath();\n                ctx.fillStyle = options.multiKeyBackground;\n                addRoundedRectPath(ctx, {\n                    x: outerX,\n                    y: colorY,\n                    w: boxWidth,\n                    h: boxHeight,\n                    radius: borderRadius\n                });\n                ctx.fill();\n                ctx.stroke();\n                ctx.fillStyle = labelColor.backgroundColor;\n                ctx.beginPath();\n                addRoundedRectPath(ctx, {\n                    x: innerX,\n                    y: colorY + 1,\n                    w: boxWidth - 2,\n                    h: boxHeight - 2,\n                    radius: borderRadius\n                });\n                ctx.fill();\n            } else {\n                ctx.fillStyle = options.multiKeyBackground;\n                ctx.fillRect(outerX, colorY, boxWidth, boxHeight);\n                ctx.strokeRect(outerX, colorY, boxWidth, boxHeight);\n                ctx.fillStyle = labelColor.backgroundColor;\n                ctx.fillRect(innerX, colorY + 1, boxWidth - 2, boxHeight - 2);\n            }\n        }\n        ctx.fillStyle = this.labelTextColors[i];\n    }\n    drawBody(pt, ctx, options) {\n        const { body  } = this;\n        const { bodySpacing , bodyAlign , displayColors , boxHeight , boxWidth , boxPadding  } = options;\n        const bodyFont = toFont(options.bodyFont);\n        let bodyLineHeight = bodyFont.lineHeight;\n        let xLinePadding = 0;\n        const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width);\n        const fillLineOfText = function(line) {\n            ctx.fillText(line, rtlHelper.x(pt.x + xLinePadding), pt.y + bodyLineHeight / 2);\n            pt.y += bodyLineHeight + bodySpacing;\n        };\n        const bodyAlignForCalculation = rtlHelper.textAlign(bodyAlign);\n        let bodyItem, textColor, lines, i, j, ilen, jlen;\n        ctx.textAlign = bodyAlign;\n        ctx.textBaseline = 'middle';\n        ctx.font = bodyFont.string;\n        pt.x = getAlignedX(this, bodyAlignForCalculation, options);\n        ctx.fillStyle = options.bodyColor;\n        each(this.beforeBody, fillLineOfText);\n        xLinePadding = displayColors && bodyAlignForCalculation !== 'right' ? bodyAlign === 'center' ? boxWidth / 2 + boxPadding : boxWidth + 2 + boxPadding : 0;\n        for(i = 0, ilen = body.length; i < ilen; ++i){\n            bodyItem = body[i];\n            textColor = this.labelTextColors[i];\n            ctx.fillStyle = textColor;\n            each(bodyItem.before, fillLineOfText);\n            lines = bodyItem.lines;\n            if (displayColors && lines.length) {\n                this._drawColorBox(ctx, pt, i, rtlHelper, options);\n                bodyLineHeight = Math.max(bodyFont.lineHeight, boxHeight);\n            }\n            for(j = 0, jlen = lines.length; j < jlen; ++j){\n                fillLineOfText(lines[j]);\n                bodyLineHeight = bodyFont.lineHeight;\n            }\n            each(bodyItem.after, fillLineOfText);\n        }\n        xLinePadding = 0;\n        bodyLineHeight = bodyFont.lineHeight;\n        each(this.afterBody, fillLineOfText);\n        pt.y -= bodySpacing;\n    }\n    drawFooter(pt, ctx, options) {\n        const footer = this.footer;\n        const length = footer.length;\n        let footerFont, i;\n        if (length) {\n            const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width);\n            pt.x = getAlignedX(this, options.footerAlign, options);\n            pt.y += options.footerMarginTop;\n            ctx.textAlign = rtlHelper.textAlign(options.footerAlign);\n            ctx.textBaseline = 'middle';\n            footerFont = toFont(options.footerFont);\n            ctx.fillStyle = options.footerColor;\n            ctx.font = footerFont.string;\n            for(i = 0; i < length; ++i){\n                ctx.fillText(footer[i], rtlHelper.x(pt.x), pt.y + footerFont.lineHeight / 2);\n                pt.y += footerFont.lineHeight + options.footerSpacing;\n            }\n        }\n    }\n    drawBackground(pt, ctx, tooltipSize, options) {\n        const { xAlign , yAlign  } = this;\n        const { x , y  } = pt;\n        const { width , height  } = tooltipSize;\n        const { topLeft , topRight , bottomLeft , bottomRight  } = toTRBLCorners(options.cornerRadius);\n        ctx.fillStyle = options.backgroundColor;\n        ctx.strokeStyle = options.borderColor;\n        ctx.lineWidth = options.borderWidth;\n        ctx.beginPath();\n        ctx.moveTo(x + topLeft, y);\n        if (yAlign === 'top') {\n            this.drawCaret(pt, ctx, tooltipSize, options);\n        }\n        ctx.lineTo(x + width - topRight, y);\n        ctx.quadraticCurveTo(x + width, y, x + width, y + topRight);\n        if (yAlign === 'center' && xAlign === 'right') {\n            this.drawCaret(pt, ctx, tooltipSize, options);\n        }\n        ctx.lineTo(x + width, y + height - bottomRight);\n        ctx.quadraticCurveTo(x + width, y + height, x + width - bottomRight, y + height);\n        if (yAlign === 'bottom') {\n            this.drawCaret(pt, ctx, tooltipSize, options);\n        }\n        ctx.lineTo(x + bottomLeft, y + height);\n        ctx.quadraticCurveTo(x, y + height, x, y + height - bottomLeft);\n        if (yAlign === 'center' && xAlign === 'left') {\n            this.drawCaret(pt, ctx, tooltipSize, options);\n        }\n        ctx.lineTo(x, y + topLeft);\n        ctx.quadraticCurveTo(x, y, x + topLeft, y);\n        ctx.closePath();\n        ctx.fill();\n        if (options.borderWidth > 0) {\n            ctx.stroke();\n        }\n    }\n _updateAnimationTarget(options) {\n        const chart = this.chart;\n        const anims = this.$animations;\n        const animX = anims && anims.x;\n        const animY = anims && anims.y;\n        if (animX || animY) {\n            const position = positioners[options.position].call(this, this._active, this._eventPosition);\n            if (!position) {\n                return;\n            }\n            const size = this._size = getTooltipSize(this, options);\n            const positionAndSize = Object.assign({}, position, this._size);\n            const alignment = determineAlignment(chart, options, positionAndSize);\n            const point = getBackgroundPoint(options, positionAndSize, alignment, chart);\n            if (animX._to !== point.x || animY._to !== point.y) {\n                this.xAlign = alignment.xAlign;\n                this.yAlign = alignment.yAlign;\n                this.width = size.width;\n                this.height = size.height;\n                this.caretX = position.x;\n                this.caretY = position.y;\n                this._resolveAnimations().update(this, point);\n            }\n        }\n    }\n _willRender() {\n        return !!this.opacity;\n    }\n    draw(ctx) {\n        const options = this.options.setContext(this.getContext());\n        let opacity = this.opacity;\n        if (!opacity) {\n            return;\n        }\n        this._updateAnimationTarget(options);\n        const tooltipSize = {\n            width: this.width,\n            height: this.height\n        };\n        const pt = {\n            x: this.x,\n            y: this.y\n        };\n        opacity = Math.abs(opacity) < 1e-3 ? 0 : opacity;\n        const padding = toPadding(options.padding);\n        const hasTooltipContent = this.title.length || this.beforeBody.length || this.body.length || this.afterBody.length || this.footer.length;\n        if (options.enabled && hasTooltipContent) {\n            ctx.save();\n            ctx.globalAlpha = opacity;\n            this.drawBackground(pt, ctx, tooltipSize, options);\n            overrideTextDirection(ctx, options.textDirection);\n            pt.y += padding.top;\n            this.drawTitle(pt, ctx, options);\n            this.drawBody(pt, ctx, options);\n            this.drawFooter(pt, ctx, options);\n            restoreTextDirection(ctx, options.textDirection);\n            ctx.restore();\n        }\n    }\n getActiveElements() {\n        return this._active || [];\n    }\n setActiveElements(activeElements, eventPosition) {\n        const lastActive = this._active;\n        const active = activeElements.map(({ datasetIndex , index  })=>{\n            const meta = this.chart.getDatasetMeta(datasetIndex);\n            if (!meta) {\n                throw new Error('Cannot find a dataset at index ' + datasetIndex);\n            }\n            return {\n                datasetIndex,\n                element: meta.data[index],\n                index\n            };\n        });\n        const changed = !_elementsEqual(lastActive, active);\n        const positionChanged = this._positionChanged(active, eventPosition);\n        if (changed || positionChanged) {\n            this._active = active;\n            this._eventPosition = eventPosition;\n            this._ignoreReplayEvents = true;\n            this.update(true);\n        }\n    }\n handleEvent(e, replay, inChartArea = true) {\n        if (replay && this._ignoreReplayEvents) {\n            return false;\n        }\n        this._ignoreReplayEvents = false;\n        const options = this.options;\n        const lastActive = this._active || [];\n        const active = this._getActiveElements(e, lastActive, replay, inChartArea);\n        const positionChanged = this._positionChanged(active, e);\n        const changed = replay || !_elementsEqual(active, lastActive) || positionChanged;\n        if (changed) {\n            this._active = active;\n            if (options.enabled || options.external) {\n                this._eventPosition = {\n                    x: e.x,\n                    y: e.y\n                };\n                this.update(true, replay);\n            }\n        }\n        return changed;\n    }\n _getActiveElements(e, lastActive, replay, inChartArea) {\n        const options = this.options;\n        if (e.type === 'mouseout') {\n            return [];\n        }\n        if (!inChartArea) {\n            return lastActive;\n        }\n        const active = this.chart.getElementsAtEventForMode(e, options.mode, options, replay);\n        if (options.reverse) {\n            active.reverse();\n        }\n        return active;\n    }\n _positionChanged(active, e) {\n        const { caretX , caretY , options  } = this;\n        const position = positioners[options.position].call(this, active, e);\n        return position !== false && (caretX !== position.x || caretY !== position.y);\n    }\n}\nvar plugin_tooltip = {\n    id: 'tooltip',\n    _element: Tooltip,\n    positioners,\n    afterInit (chart, _args, options) {\n        if (options) {\n            chart.tooltip = new Tooltip({\n                chart,\n                options\n            });\n        }\n    },\n    beforeUpdate (chart, _args, options) {\n        if (chart.tooltip) {\n            chart.tooltip.initialize(options);\n        }\n    },\n    reset (chart, _args, options) {\n        if (chart.tooltip) {\n            chart.tooltip.initialize(options);\n        }\n    },\n    afterDraw (chart) {\n        const tooltip = chart.tooltip;\n        if (tooltip && tooltip._willRender()) {\n            const args = {\n                tooltip\n            };\n            if (chart.notifyPlugins('beforeTooltipDraw', {\n                ...args,\n                cancelable: true\n            }) === false) {\n                return;\n            }\n            tooltip.draw(chart.ctx);\n            chart.notifyPlugins('afterTooltipDraw', args);\n        }\n    },\n    afterEvent (chart, args) {\n        if (chart.tooltip) {\n            const useFinalPosition = args.replay;\n            if (chart.tooltip.handleEvent(args.event, useFinalPosition, args.inChartArea)) {\n                args.changed = true;\n            }\n        }\n    },\n    defaults: {\n        enabled: true,\n        external: null,\n        position: 'average',\n        backgroundColor: 'rgba(0,0,0,0.8)',\n        titleColor: '#fff',\n        titleFont: {\n            weight: 'bold'\n        },\n        titleSpacing: 2,\n        titleMarginBottom: 6,\n        titleAlign: 'left',\n        bodyColor: '#fff',\n        bodySpacing: 2,\n        bodyFont: {},\n        bodyAlign: 'left',\n        footerColor: '#fff',\n        footerSpacing: 2,\n        footerMarginTop: 6,\n        footerFont: {\n            weight: 'bold'\n        },\n        footerAlign: 'left',\n        padding: 6,\n        caretPadding: 2,\n        caretSize: 5,\n        cornerRadius: 6,\n        boxHeight: (ctx, opts)=>opts.bodyFont.size,\n        boxWidth: (ctx, opts)=>opts.bodyFont.size,\n        multiKeyBackground: '#fff',\n        displayColors: true,\n        boxPadding: 0,\n        borderColor: 'rgba(0,0,0,0)',\n        borderWidth: 0,\n        animation: {\n            duration: 400,\n            easing: 'easeOutQuart'\n        },\n        animations: {\n            numbers: {\n                type: 'number',\n                properties: [\n                    'x',\n                    'y',\n                    'width',\n                    'height',\n                    'caretX',\n                    'caretY'\n                ]\n            },\n            opacity: {\n                easing: 'linear',\n                duration: 200\n            }\n        },\n        callbacks: defaultCallbacks\n    },\n    defaultRoutes: {\n        bodyFont: 'font',\n        footerFont: 'font',\n        titleFont: 'font'\n    },\n    descriptors: {\n        _scriptable: (name)=>name !== 'filter' && name !== 'itemSort' && name !== 'external',\n        _indexable: false,\n        callbacks: {\n            _scriptable: false,\n            _indexable: false\n        },\n        animation: {\n            _fallback: false\n        },\n        animations: {\n            _fallback: 'animation'\n        }\n    },\n    additionalOptionScopes: [\n        'interaction'\n    ]\n};\n\nvar plugins = /*#__PURE__*/Object.freeze({\n__proto__: null,\nColors: plugin_colors,\nDecimation: plugin_decimation,\nFiller: index,\nLegend: plugin_legend,\nSubTitle: plugin_subtitle,\nTitle: plugin_title,\nTooltip: plugin_tooltip\n});\n\nconst addIfString = (labels, raw, index, addedLabels)=>{\n    if (typeof raw === 'string') {\n        index = labels.push(raw) - 1;\n        addedLabels.unshift({\n            index,\n            label: raw\n        });\n    } else if (isNaN(raw)) {\n        index = null;\n    }\n    return index;\n};\nfunction findOrAddLabel(labels, raw, index, addedLabels) {\n    const first = labels.indexOf(raw);\n    if (first === -1) {\n        return addIfString(labels, raw, index, addedLabels);\n    }\n    const last = labels.lastIndexOf(raw);\n    return first !== last ? index : first;\n}\nconst validIndex = (index, max)=>index === null ? null : _limitValue(Math.round(index), 0, max);\nfunction _getLabelForValue(value) {\n    const labels = this.getLabels();\n    if (value >= 0 && value < labels.length) {\n        return labels[value];\n    }\n    return value;\n}\nclass CategoryScale extends Scale {\n    static id = 'category';\n static defaults = {\n        ticks: {\n            callback: _getLabelForValue\n        }\n    };\n    constructor(cfg){\n        super(cfg);\n         this._startValue = undefined;\n        this._valueRange = 0;\n        this._addedLabels = [];\n    }\n    init(scaleOptions) {\n        const added = this._addedLabels;\n        if (added.length) {\n            const labels = this.getLabels();\n            for (const { index , label  } of added){\n                if (labels[index] === label) {\n                    labels.splice(index, 1);\n                }\n            }\n            this._addedLabels = [];\n        }\n        super.init(scaleOptions);\n    }\n    parse(raw, index) {\n        if (isNullOrUndef(raw)) {\n            return null;\n        }\n        const labels = this.getLabels();\n        index = isFinite(index) && labels[index] === raw ? index : findOrAddLabel(labels, raw, valueOrDefault(index, raw), this._addedLabels);\n        return validIndex(index, labels.length - 1);\n    }\n    determineDataLimits() {\n        const { minDefined , maxDefined  } = this.getUserBounds();\n        let { min , max  } = this.getMinMax(true);\n        if (this.options.bounds === 'ticks') {\n            if (!minDefined) {\n                min = 0;\n            }\n            if (!maxDefined) {\n                max = this.getLabels().length - 1;\n            }\n        }\n        this.min = min;\n        this.max = max;\n    }\n    buildTicks() {\n        const min = this.min;\n        const max = this.max;\n        const offset = this.options.offset;\n        const ticks = [];\n        let labels = this.getLabels();\n        labels = min === 0 && max === labels.length - 1 ? labels : labels.slice(min, max + 1);\n        this._valueRange = Math.max(labels.length - (offset ? 0 : 1), 1);\n        this._startValue = this.min - (offset ? 0.5 : 0);\n        for(let value = min; value <= max; value++){\n            ticks.push({\n                value\n            });\n        }\n        return ticks;\n    }\n    getLabelForValue(value) {\n        return _getLabelForValue.call(this, value);\n    }\n configure() {\n        super.configure();\n        if (!this.isHorizontal()) {\n            this._reversePixels = !this._reversePixels;\n        }\n    }\n    getPixelForValue(value) {\n        if (typeof value !== 'number') {\n            value = this.parse(value);\n        }\n        return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange);\n    }\n    getPixelForTick(index) {\n        const ticks = this.ticks;\n        if (index < 0 || index > ticks.length - 1) {\n            return null;\n        }\n        return this.getPixelForValue(ticks[index].value);\n    }\n    getValueForPixel(pixel) {\n        return Math.round(this._startValue + this.getDecimalForPixel(pixel) * this._valueRange);\n    }\n    getBasePixel() {\n        return this.bottom;\n    }\n}\n\nfunction generateTicks$1(generationOptions, dataRange) {\n    const ticks = [];\n    const MIN_SPACING = 1e-14;\n    const { bounds , step , min , max , precision , count , maxTicks , maxDigits , includeBounds  } = generationOptions;\n    const unit = step || 1;\n    const maxSpaces = maxTicks - 1;\n    const { min: rmin , max: rmax  } = dataRange;\n    const minDefined = !isNullOrUndef(min);\n    const maxDefined = !isNullOrUndef(max);\n    const countDefined = !isNullOrUndef(count);\n    const minSpacing = (rmax - rmin) / (maxDigits + 1);\n    let spacing = niceNum((rmax - rmin) / maxSpaces / unit) * unit;\n    let factor, niceMin, niceMax, numSpaces;\n    if (spacing < MIN_SPACING && !minDefined && !maxDefined) {\n        return [\n            {\n                value: rmin\n            },\n            {\n                value: rmax\n            }\n        ];\n    }\n    numSpaces = Math.ceil(rmax / spacing) - Math.floor(rmin / spacing);\n    if (numSpaces > maxSpaces) {\n        spacing = niceNum(numSpaces * spacing / maxSpaces / unit) * unit;\n    }\n    if (!isNullOrUndef(precision)) {\n        factor = Math.pow(10, precision);\n        spacing = Math.ceil(spacing * factor) / factor;\n    }\n    if (bounds === 'ticks') {\n        niceMin = Math.floor(rmin / spacing) * spacing;\n        niceMax = Math.ceil(rmax / spacing) * spacing;\n    } else {\n        niceMin = rmin;\n        niceMax = rmax;\n    }\n    if (minDefined && maxDefined && step && almostWhole((max - min) / step, spacing / 1000)) {\n        numSpaces = Math.round(Math.min((max - min) / spacing, maxTicks));\n        spacing = (max - min) / numSpaces;\n        niceMin = min;\n        niceMax = max;\n    } else if (countDefined) {\n        niceMin = minDefined ? min : niceMin;\n        niceMax = maxDefined ? max : niceMax;\n        numSpaces = count - 1;\n        spacing = (niceMax - niceMin) / numSpaces;\n    } else {\n        numSpaces = (niceMax - niceMin) / spacing;\n        if (almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) {\n            numSpaces = Math.round(numSpaces);\n        } else {\n            numSpaces = Math.ceil(numSpaces);\n        }\n    }\n    const decimalPlaces = Math.max(_decimalPlaces(spacing), _decimalPlaces(niceMin));\n    factor = Math.pow(10, isNullOrUndef(precision) ? decimalPlaces : precision);\n    niceMin = Math.round(niceMin * factor) / factor;\n    niceMax = Math.round(niceMax * factor) / factor;\n    let j = 0;\n    if (minDefined) {\n        if (includeBounds && niceMin !== min) {\n            ticks.push({\n                value: min\n            });\n            if (niceMin < min) {\n                j++;\n            }\n            if (almostEquals(Math.round((niceMin + j * spacing) * factor) / factor, min, relativeLabelSize(min, minSpacing, generationOptions))) {\n                j++;\n            }\n        } else if (niceMin < min) {\n            j++;\n        }\n    }\n    for(; j < numSpaces; ++j){\n        const tickValue = Math.round((niceMin + j * spacing) * factor) / factor;\n        if (maxDefined && tickValue > max) {\n            break;\n        }\n        ticks.push({\n            value: tickValue\n        });\n    }\n    if (maxDefined && includeBounds && niceMax !== max) {\n        if (ticks.length && almostEquals(ticks[ticks.length - 1].value, max, relativeLabelSize(max, minSpacing, generationOptions))) {\n            ticks[ticks.length - 1].value = max;\n        } else {\n            ticks.push({\n                value: max\n            });\n        }\n    } else if (!maxDefined || niceMax === max) {\n        ticks.push({\n            value: niceMax\n        });\n    }\n    return ticks;\n}\nfunction relativeLabelSize(value, minSpacing, { horizontal , minRotation  }) {\n    const rad = toRadians(minRotation);\n    const ratio = (horizontal ? Math.sin(rad) : Math.cos(rad)) || 0.001;\n    const length = 0.75 * minSpacing * ('' + value).length;\n    return Math.min(minSpacing / ratio, length);\n}\nclass LinearScaleBase extends Scale {\n    constructor(cfg){\n        super(cfg);\n         this.start = undefined;\n         this.end = undefined;\n         this._startValue = undefined;\n         this._endValue = undefined;\n        this._valueRange = 0;\n    }\n    parse(raw, index) {\n        if (isNullOrUndef(raw)) {\n            return null;\n        }\n        if ((typeof raw === 'number' || raw instanceof Number) && !isFinite(+raw)) {\n            return null;\n        }\n        return +raw;\n    }\n    handleTickRangeOptions() {\n        const { beginAtZero  } = this.options;\n        const { minDefined , maxDefined  } = this.getUserBounds();\n        let { min , max  } = this;\n        const setMin = (v)=>min = minDefined ? min : v;\n        const setMax = (v)=>max = maxDefined ? max : v;\n        if (beginAtZero) {\n            const minSign = sign(min);\n            const maxSign = sign(max);\n            if (minSign < 0 && maxSign < 0) {\n                setMax(0);\n            } else if (minSign > 0 && maxSign > 0) {\n                setMin(0);\n            }\n        }\n        if (min === max) {\n            let offset = max === 0 ? 1 : Math.abs(max * 0.05);\n            setMax(max + offset);\n            if (!beginAtZero) {\n                setMin(min - offset);\n            }\n        }\n        this.min = min;\n        this.max = max;\n    }\n    getTickLimit() {\n        const tickOpts = this.options.ticks;\n        let { maxTicksLimit , stepSize  } = tickOpts;\n        let maxTicks;\n        if (stepSize) {\n            maxTicks = Math.ceil(this.max / stepSize) - Math.floor(this.min / stepSize) + 1;\n            if (maxTicks > 1000) {\n                console.warn(`scales.${this.id}.ticks.stepSize: ${stepSize} would result generating up to ${maxTicks} ticks. Limiting to 1000.`);\n                maxTicks = 1000;\n            }\n        } else {\n            maxTicks = this.computeTickLimit();\n            maxTicksLimit = maxTicksLimit || 11;\n        }\n        if (maxTicksLimit) {\n            maxTicks = Math.min(maxTicksLimit, maxTicks);\n        }\n        return maxTicks;\n    }\n computeTickLimit() {\n        return Number.POSITIVE_INFINITY;\n    }\n    buildTicks() {\n        const opts = this.options;\n        const tickOpts = opts.ticks;\n        let maxTicks = this.getTickLimit();\n        maxTicks = Math.max(2, maxTicks);\n        const numericGeneratorOptions = {\n            maxTicks,\n            bounds: opts.bounds,\n            min: opts.min,\n            max: opts.max,\n            precision: tickOpts.precision,\n            step: tickOpts.stepSize,\n            count: tickOpts.count,\n            maxDigits: this._maxDigits(),\n            horizontal: this.isHorizontal(),\n            minRotation: tickOpts.minRotation || 0,\n            includeBounds: tickOpts.includeBounds !== false\n        };\n        const dataRange = this._range || this;\n        const ticks = generateTicks$1(numericGeneratorOptions, dataRange);\n        if (opts.bounds === 'ticks') {\n            _setMinAndMaxByKey(ticks, this, 'value');\n        }\n        if (opts.reverse) {\n            ticks.reverse();\n            this.start = this.max;\n            this.end = this.min;\n        } else {\n            this.start = this.min;\n            this.end = this.max;\n        }\n        return ticks;\n    }\n configure() {\n        const ticks = this.ticks;\n        let start = this.min;\n        let end = this.max;\n        super.configure();\n        if (this.options.offset && ticks.length) {\n            const offset = (end - start) / Math.max(ticks.length - 1, 1) / 2;\n            start -= offset;\n            end += offset;\n        }\n        this._startValue = start;\n        this._endValue = end;\n        this._valueRange = end - start;\n    }\n    getLabelForValue(value) {\n        return formatNumber(value, this.chart.options.locale, this.options.ticks.format);\n    }\n}\n\nclass LinearScale extends LinearScaleBase {\n    static id = 'linear';\n static defaults = {\n        ticks: {\n            callback: Ticks.formatters.numeric\n        }\n    };\n    determineDataLimits() {\n        const { min , max  } = this.getMinMax(true);\n        this.min = isNumberFinite(min) ? min : 0;\n        this.max = isNumberFinite(max) ? max : 1;\n        this.handleTickRangeOptions();\n    }\n computeTickLimit() {\n        const horizontal = this.isHorizontal();\n        const length = horizontal ? this.width : this.height;\n        const minRotation = toRadians(this.options.ticks.minRotation);\n        const ratio = (horizontal ? Math.sin(minRotation) : Math.cos(minRotation)) || 0.001;\n        const tickFont = this._resolveTickFontOptions(0);\n        return Math.ceil(length / Math.min(40, tickFont.lineHeight / ratio));\n    }\n    getPixelForValue(value) {\n        return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange);\n    }\n    getValueForPixel(pixel) {\n        return this._startValue + this.getDecimalForPixel(pixel) * this._valueRange;\n    }\n}\n\nconst log10Floor = (v)=>Math.floor(log10(v));\nconst changeExponent = (v, m)=>Math.pow(10, log10Floor(v) + m);\nfunction isMajor(tickVal) {\n    const remain = tickVal / Math.pow(10, log10Floor(tickVal));\n    return remain === 1;\n}\nfunction steps(min, max, rangeExp) {\n    const rangeStep = Math.pow(10, rangeExp);\n    const start = Math.floor(min / rangeStep);\n    const end = Math.ceil(max / rangeStep);\n    return end - start;\n}\nfunction startExp(min, max) {\n    const range = max - min;\n    let rangeExp = log10Floor(range);\n    while(steps(min, max, rangeExp) > 10){\n        rangeExp++;\n    }\n    while(steps(min, max, rangeExp) < 10){\n        rangeExp--;\n    }\n    return Math.min(rangeExp, log10Floor(min));\n}\n function generateTicks(generationOptions, { min , max  }) {\n    min = finiteOrDefault(generationOptions.min, min);\n    const ticks = [];\n    const minExp = log10Floor(min);\n    let exp = startExp(min, max);\n    let precision = exp < 0 ? Math.pow(10, Math.abs(exp)) : 1;\n    const stepSize = Math.pow(10, exp);\n    const base = minExp > exp ? Math.pow(10, minExp) : 0;\n    const start = Math.round((min - base) * precision) / precision;\n    const offset = Math.floor((min - base) / stepSize / 10) * stepSize * 10;\n    let significand = Math.floor((start - offset) / Math.pow(10, exp));\n    let value = finiteOrDefault(generationOptions.min, Math.round((base + offset + significand * Math.pow(10, exp)) * precision) / precision);\n    while(value < max){\n        ticks.push({\n            value,\n            major: isMajor(value),\n            significand\n        });\n        if (significand >= 10) {\n            significand = significand < 15 ? 15 : 20;\n        } else {\n            significand++;\n        }\n        if (significand >= 20) {\n            exp++;\n            significand = 2;\n            precision = exp >= 0 ? 1 : precision;\n        }\n        value = Math.round((base + offset + significand * Math.pow(10, exp)) * precision) / precision;\n    }\n    const lastTick = finiteOrDefault(generationOptions.max, value);\n    ticks.push({\n        value: lastTick,\n        major: isMajor(lastTick),\n        significand\n    });\n    return ticks;\n}\nclass LogarithmicScale extends Scale {\n    static id = 'logarithmic';\n static defaults = {\n        ticks: {\n            callback: Ticks.formatters.logarithmic,\n            major: {\n                enabled: true\n            }\n        }\n    };\n    constructor(cfg){\n        super(cfg);\n         this.start = undefined;\n         this.end = undefined;\n         this._startValue = undefined;\n        this._valueRange = 0;\n    }\n    parse(raw, index) {\n        const value = LinearScaleBase.prototype.parse.apply(this, [\n            raw,\n            index\n        ]);\n        if (value === 0) {\n            this._zero = true;\n            return undefined;\n        }\n        return isNumberFinite(value) && value > 0 ? value : null;\n    }\n    determineDataLimits() {\n        const { min , max  } = this.getMinMax(true);\n        this.min = isNumberFinite(min) ? Math.max(0, min) : null;\n        this.max = isNumberFinite(max) ? Math.max(0, max) : null;\n        if (this.options.beginAtZero) {\n            this._zero = true;\n        }\n        if (this._zero && this.min !== this._suggestedMin && !isNumberFinite(this._userMin)) {\n            this.min = min === changeExponent(this.min, 0) ? changeExponent(this.min, -1) : changeExponent(this.min, 0);\n        }\n        this.handleTickRangeOptions();\n    }\n    handleTickRangeOptions() {\n        const { minDefined , maxDefined  } = this.getUserBounds();\n        let min = this.min;\n        let max = this.max;\n        const setMin = (v)=>min = minDefined ? min : v;\n        const setMax = (v)=>max = maxDefined ? max : v;\n        if (min === max) {\n            if (min <= 0) {\n                setMin(1);\n                setMax(10);\n            } else {\n                setMin(changeExponent(min, -1));\n                setMax(changeExponent(max, +1));\n            }\n        }\n        if (min <= 0) {\n            setMin(changeExponent(max, -1));\n        }\n        if (max <= 0) {\n            setMax(changeExponent(min, +1));\n        }\n        this.min = min;\n        this.max = max;\n    }\n    buildTicks() {\n        const opts = this.options;\n        const generationOptions = {\n            min: this._userMin,\n            max: this._userMax\n        };\n        const ticks = generateTicks(generationOptions, this);\n        if (opts.bounds === 'ticks') {\n            _setMinAndMaxByKey(ticks, this, 'value');\n        }\n        if (opts.reverse) {\n            ticks.reverse();\n            this.start = this.max;\n            this.end = this.min;\n        } else {\n            this.start = this.min;\n            this.end = this.max;\n        }\n        return ticks;\n    }\n getLabelForValue(value) {\n        return value === undefined ? '0' : formatNumber(value, this.chart.options.locale, this.options.ticks.format);\n    }\n configure() {\n        const start = this.min;\n        super.configure();\n        this._startValue = log10(start);\n        this._valueRange = log10(this.max) - log10(start);\n    }\n    getPixelForValue(value) {\n        if (value === undefined || value === 0) {\n            value = this.min;\n        }\n        if (value === null || isNaN(value)) {\n            return NaN;\n        }\n        return this.getPixelForDecimal(value === this.min ? 0 : (log10(value) - this._startValue) / this._valueRange);\n    }\n    getValueForPixel(pixel) {\n        const decimal = this.getDecimalForPixel(pixel);\n        return Math.pow(10, this._startValue + decimal * this._valueRange);\n    }\n}\n\nfunction getTickBackdropHeight(opts) {\n    const tickOpts = opts.ticks;\n    if (tickOpts.display && opts.display) {\n        const padding = toPadding(tickOpts.backdropPadding);\n        return valueOrDefault(tickOpts.font && tickOpts.font.size, defaults.font.size) + padding.height;\n    }\n    return 0;\n}\nfunction measureLabelSize(ctx, font, label) {\n    label = isArray(label) ? label : [\n        label\n    ];\n    return {\n        w: _longestText(ctx, font.string, label),\n        h: label.length * font.lineHeight\n    };\n}\nfunction determineLimits(angle, pos, size, min, max) {\n    if (angle === min || angle === max) {\n        return {\n            start: pos - size / 2,\n            end: pos + size / 2\n        };\n    } else if (angle < min || angle > max) {\n        return {\n            start: pos - size,\n            end: pos\n        };\n    }\n    return {\n        start: pos,\n        end: pos + size\n    };\n}\n function fitWithPointLabels(scale) {\n    const orig = {\n        l: scale.left + scale._padding.left,\n        r: scale.right - scale._padding.right,\n        t: scale.top + scale._padding.top,\n        b: scale.bottom - scale._padding.bottom\n    };\n    const limits = Object.assign({}, orig);\n    const labelSizes = [];\n    const padding = [];\n    const valueCount = scale._pointLabels.length;\n    const pointLabelOpts = scale.options.pointLabels;\n    const additionalAngle = pointLabelOpts.centerPointLabels ? PI / valueCount : 0;\n    for(let i = 0; i < valueCount; i++){\n        const opts = pointLabelOpts.setContext(scale.getPointLabelContext(i));\n        padding[i] = opts.padding;\n        const pointPosition = scale.getPointPosition(i, scale.drawingArea + padding[i], additionalAngle);\n        const plFont = toFont(opts.font);\n        const textSize = measureLabelSize(scale.ctx, plFont, scale._pointLabels[i]);\n        labelSizes[i] = textSize;\n        const angleRadians = _normalizeAngle(scale.getIndexAngle(i) + additionalAngle);\n        const angle = Math.round(toDegrees(angleRadians));\n        const hLimits = determineLimits(angle, pointPosition.x, textSize.w, 0, 180);\n        const vLimits = determineLimits(angle, pointPosition.y, textSize.h, 90, 270);\n        updateLimits(limits, orig, angleRadians, hLimits, vLimits);\n    }\n    scale.setCenterPoint(orig.l - limits.l, limits.r - orig.r, orig.t - limits.t, limits.b - orig.b);\n    scale._pointLabelItems = buildPointLabelItems(scale, labelSizes, padding);\n}\nfunction updateLimits(limits, orig, angle, hLimits, vLimits) {\n    const sin = Math.abs(Math.sin(angle));\n    const cos = Math.abs(Math.cos(angle));\n    let x = 0;\n    let y = 0;\n    if (hLimits.start < orig.l) {\n        x = (orig.l - hLimits.start) / sin;\n        limits.l = Math.min(limits.l, orig.l - x);\n    } else if (hLimits.end > orig.r) {\n        x = (hLimits.end - orig.r) / sin;\n        limits.r = Math.max(limits.r, orig.r + x);\n    }\n    if (vLimits.start < orig.t) {\n        y = (orig.t - vLimits.start) / cos;\n        limits.t = Math.min(limits.t, orig.t - y);\n    } else if (vLimits.end > orig.b) {\n        y = (vLimits.end - orig.b) / cos;\n        limits.b = Math.max(limits.b, orig.b + y);\n    }\n}\nfunction createPointLabelItem(scale, index, itemOpts) {\n    const outerDistance = scale.drawingArea;\n    const { extra , additionalAngle , padding , size  } = itemOpts;\n    const pointLabelPosition = scale.getPointPosition(index, outerDistance + extra + padding, additionalAngle);\n    const angle = Math.round(toDegrees(_normalizeAngle(pointLabelPosition.angle + HALF_PI)));\n    const y = yForAngle(pointLabelPosition.y, size.h, angle);\n    const textAlign = getTextAlignForAngle(angle);\n    const left = leftForTextAlign(pointLabelPosition.x, size.w, textAlign);\n    return {\n        visible: true,\n        x: pointLabelPosition.x,\n        y,\n        textAlign,\n        left,\n        top: y,\n        right: left + size.w,\n        bottom: y + size.h\n    };\n}\nfunction isNotOverlapped(item, area) {\n    if (!area) {\n        return true;\n    }\n    const { left , top , right , bottom  } = item;\n    const apexesInArea = _isPointInArea({\n        x: left,\n        y: top\n    }, area) || _isPointInArea({\n        x: left,\n        y: bottom\n    }, area) || _isPointInArea({\n        x: right,\n        y: top\n    }, area) || _isPointInArea({\n        x: right,\n        y: bottom\n    }, area);\n    return !apexesInArea;\n}\nfunction buildPointLabelItems(scale, labelSizes, padding) {\n    const items = [];\n    const valueCount = scale._pointLabels.length;\n    const opts = scale.options;\n    const { centerPointLabels , display  } = opts.pointLabels;\n    const itemOpts = {\n        extra: getTickBackdropHeight(opts) / 2,\n        additionalAngle: centerPointLabels ? PI / valueCount : 0\n    };\n    let area;\n    for(let i = 0; i < valueCount; i++){\n        itemOpts.padding = padding[i];\n        itemOpts.size = labelSizes[i];\n        const item = createPointLabelItem(scale, i, itemOpts);\n        items.push(item);\n        if (display === 'auto') {\n            item.visible = isNotOverlapped(item, area);\n            if (item.visible) {\n                area = item;\n            }\n        }\n    }\n    return items;\n}\nfunction getTextAlignForAngle(angle) {\n    if (angle === 0 || angle === 180) {\n        return 'center';\n    } else if (angle < 180) {\n        return 'left';\n    }\n    return 'right';\n}\nfunction leftForTextAlign(x, w, align) {\n    if (align === 'right') {\n        x -= w;\n    } else if (align === 'center') {\n        x -= w / 2;\n    }\n    return x;\n}\nfunction yForAngle(y, h, angle) {\n    if (angle === 90 || angle === 270) {\n        y -= h / 2;\n    } else if (angle > 270 || angle < 90) {\n        y -= h;\n    }\n    return y;\n}\nfunction drawPointLabelBox(ctx, opts, item) {\n    const { left , top , right , bottom  } = item;\n    const { backdropColor  } = opts;\n    if (!isNullOrUndef(backdropColor)) {\n        const borderRadius = toTRBLCorners(opts.borderRadius);\n        const padding = toPadding(opts.backdropPadding);\n        ctx.fillStyle = backdropColor;\n        const backdropLeft = left - padding.left;\n        const backdropTop = top - padding.top;\n        const backdropWidth = right - left + padding.width;\n        const backdropHeight = bottom - top + padding.height;\n        if (Object.values(borderRadius).some((v)=>v !== 0)) {\n            ctx.beginPath();\n            addRoundedRectPath(ctx, {\n                x: backdropLeft,\n                y: backdropTop,\n                w: backdropWidth,\n                h: backdropHeight,\n                radius: borderRadius\n            });\n            ctx.fill();\n        } else {\n            ctx.fillRect(backdropLeft, backdropTop, backdropWidth, backdropHeight);\n        }\n    }\n}\nfunction drawPointLabels(scale, labelCount) {\n    const { ctx , options: { pointLabels  }  } = scale;\n    for(let i = labelCount - 1; i >= 0; i--){\n        const item = scale._pointLabelItems[i];\n        if (!item.visible) {\n            continue;\n        }\n        const optsAtIndex = pointLabels.setContext(scale.getPointLabelContext(i));\n        drawPointLabelBox(ctx, optsAtIndex, item);\n        const plFont = toFont(optsAtIndex.font);\n        const { x , y , textAlign  } = item;\n        renderText(ctx, scale._pointLabels[i], x, y + plFont.lineHeight / 2, plFont, {\n            color: optsAtIndex.color,\n            textAlign: textAlign,\n            textBaseline: 'middle'\n        });\n    }\n}\nfunction pathRadiusLine(scale, radius, circular, labelCount) {\n    const { ctx  } = scale;\n    if (circular) {\n        ctx.arc(scale.xCenter, scale.yCenter, radius, 0, TAU);\n    } else {\n        let pointPosition = scale.getPointPosition(0, radius);\n        ctx.moveTo(pointPosition.x, pointPosition.y);\n        for(let i = 1; i < labelCount; i++){\n            pointPosition = scale.getPointPosition(i, radius);\n            ctx.lineTo(pointPosition.x, pointPosition.y);\n        }\n    }\n}\nfunction drawRadiusLine(scale, gridLineOpts, radius, labelCount, borderOpts) {\n    const ctx = scale.ctx;\n    const circular = gridLineOpts.circular;\n    const { color , lineWidth  } = gridLineOpts;\n    if (!circular && !labelCount || !color || !lineWidth || radius < 0) {\n        return;\n    }\n    ctx.save();\n    ctx.strokeStyle = color;\n    ctx.lineWidth = lineWidth;\n    ctx.setLineDash(borderOpts.dash);\n    ctx.lineDashOffset = borderOpts.dashOffset;\n    ctx.beginPath();\n    pathRadiusLine(scale, radius, circular, labelCount);\n    ctx.closePath();\n    ctx.stroke();\n    ctx.restore();\n}\nfunction createPointLabelContext(parent, index, label) {\n    return createContext(parent, {\n        label,\n        index,\n        type: 'pointLabel'\n    });\n}\nclass RadialLinearScale extends LinearScaleBase {\n    static id = 'radialLinear';\n static defaults = {\n        display: true,\n        animate: true,\n        position: 'chartArea',\n        angleLines: {\n            display: true,\n            lineWidth: 1,\n            borderDash: [],\n            borderDashOffset: 0.0\n        },\n        grid: {\n            circular: false\n        },\n        startAngle: 0,\n        ticks: {\n            showLabelBackdrop: true,\n            callback: Ticks.formatters.numeric\n        },\n        pointLabels: {\n            backdropColor: undefined,\n            backdropPadding: 2,\n            display: true,\n            font: {\n                size: 10\n            },\n            callback (label) {\n                return label;\n            },\n            padding: 5,\n            centerPointLabels: false\n        }\n    };\n    static defaultRoutes = {\n        'angleLines.color': 'borderColor',\n        'pointLabels.color': 'color',\n        'ticks.color': 'color'\n    };\n    static descriptors = {\n        angleLines: {\n            _fallback: 'grid'\n        }\n    };\n    constructor(cfg){\n        super(cfg);\n         this.xCenter = undefined;\n         this.yCenter = undefined;\n         this.drawingArea = undefined;\n         this._pointLabels = [];\n        this._pointLabelItems = [];\n    }\n    setDimensions() {\n        const padding = this._padding = toPadding(getTickBackdropHeight(this.options) / 2);\n        const w = this.width = this.maxWidth - padding.width;\n        const h = this.height = this.maxHeight - padding.height;\n        this.xCenter = Math.floor(this.left + w / 2 + padding.left);\n        this.yCenter = Math.floor(this.top + h / 2 + padding.top);\n        this.drawingArea = Math.floor(Math.min(w, h) / 2);\n    }\n    determineDataLimits() {\n        const { min , max  } = this.getMinMax(false);\n        this.min = isNumberFinite(min) && !isNaN(min) ? min : 0;\n        this.max = isNumberFinite(max) && !isNaN(max) ? max : 0;\n        this.handleTickRangeOptions();\n    }\n computeTickLimit() {\n        return Math.ceil(this.drawingArea / getTickBackdropHeight(this.options));\n    }\n    generateTickLabels(ticks) {\n        LinearScaleBase.prototype.generateTickLabels.call(this, ticks);\n        this._pointLabels = this.getLabels().map((value, index)=>{\n            const label = callback(this.options.pointLabels.callback, [\n                value,\n                index\n            ], this);\n            return label || label === 0 ? label : '';\n        }).filter((v, i)=>this.chart.getDataVisibility(i));\n    }\n    fit() {\n        const opts = this.options;\n        if (opts.display && opts.pointLabels.display) {\n            fitWithPointLabels(this);\n        } else {\n            this.setCenterPoint(0, 0, 0, 0);\n        }\n    }\n    setCenterPoint(leftMovement, rightMovement, topMovement, bottomMovement) {\n        this.xCenter += Math.floor((leftMovement - rightMovement) / 2);\n        this.yCenter += Math.floor((topMovement - bottomMovement) / 2);\n        this.drawingArea -= Math.min(this.drawingArea / 2, Math.max(leftMovement, rightMovement, topMovement, bottomMovement));\n    }\n    getIndexAngle(index) {\n        const angleMultiplier = TAU / (this._pointLabels.length || 1);\n        const startAngle = this.options.startAngle || 0;\n        return _normalizeAngle(index * angleMultiplier + toRadians(startAngle));\n    }\n    getDistanceFromCenterForValue(value) {\n        if (isNullOrUndef(value)) {\n            return NaN;\n        }\n        const scalingFactor = this.drawingArea / (this.max - this.min);\n        if (this.options.reverse) {\n            return (this.max - value) * scalingFactor;\n        }\n        return (value - this.min) * scalingFactor;\n    }\n    getValueForDistanceFromCenter(distance) {\n        if (isNullOrUndef(distance)) {\n            return NaN;\n        }\n        const scaledDistance = distance / (this.drawingArea / (this.max - this.min));\n        return this.options.reverse ? this.max - scaledDistance : this.min + scaledDistance;\n    }\n    getPointLabelContext(index) {\n        const pointLabels = this._pointLabels || [];\n        if (index >= 0 && index < pointLabels.length) {\n            const pointLabel = pointLabels[index];\n            return createPointLabelContext(this.getContext(), index, pointLabel);\n        }\n    }\n    getPointPosition(index, distanceFromCenter, additionalAngle = 0) {\n        const angle = this.getIndexAngle(index) - HALF_PI + additionalAngle;\n        return {\n            x: Math.cos(angle) * distanceFromCenter + this.xCenter,\n            y: Math.sin(angle) * distanceFromCenter + this.yCenter,\n            angle\n        };\n    }\n    getPointPositionForValue(index, value) {\n        return this.getPointPosition(index, this.getDistanceFromCenterForValue(value));\n    }\n    getBasePosition(index) {\n        return this.getPointPositionForValue(index || 0, this.getBaseValue());\n    }\n    getPointLabelPosition(index) {\n        const { left , top , right , bottom  } = this._pointLabelItems[index];\n        return {\n            left,\n            top,\n            right,\n            bottom\n        };\n    }\n drawBackground() {\n        const { backgroundColor , grid: { circular  }  } = this.options;\n        if (backgroundColor) {\n            const ctx = this.ctx;\n            ctx.save();\n            ctx.beginPath();\n            pathRadiusLine(this, this.getDistanceFromCenterForValue(this._endValue), circular, this._pointLabels.length);\n            ctx.closePath();\n            ctx.fillStyle = backgroundColor;\n            ctx.fill();\n            ctx.restore();\n        }\n    }\n drawGrid() {\n        const ctx = this.ctx;\n        const opts = this.options;\n        const { angleLines , grid , border  } = opts;\n        const labelCount = this._pointLabels.length;\n        let i, offset, position;\n        if (opts.pointLabels.display) {\n            drawPointLabels(this, labelCount);\n        }\n        if (grid.display) {\n            this.ticks.forEach((tick, index)=>{\n                if (index !== 0) {\n                    offset = this.getDistanceFromCenterForValue(tick.value);\n                    const context = this.getContext(index);\n                    const optsAtIndex = grid.setContext(context);\n                    const optsAtIndexBorder = border.setContext(context);\n                    drawRadiusLine(this, optsAtIndex, offset, labelCount, optsAtIndexBorder);\n                }\n            });\n        }\n        if (angleLines.display) {\n            ctx.save();\n            for(i = labelCount - 1; i >= 0; i--){\n                const optsAtIndex = angleLines.setContext(this.getPointLabelContext(i));\n                const { color , lineWidth  } = optsAtIndex;\n                if (!lineWidth || !color) {\n                    continue;\n                }\n                ctx.lineWidth = lineWidth;\n                ctx.strokeStyle = color;\n                ctx.setLineDash(optsAtIndex.borderDash);\n                ctx.lineDashOffset = optsAtIndex.borderDashOffset;\n                offset = this.getDistanceFromCenterForValue(opts.ticks.reverse ? this.min : this.max);\n                position = this.getPointPosition(i, offset);\n                ctx.beginPath();\n                ctx.moveTo(this.xCenter, this.yCenter);\n                ctx.lineTo(position.x, position.y);\n                ctx.stroke();\n            }\n            ctx.restore();\n        }\n    }\n drawBorder() {}\n drawLabels() {\n        const ctx = this.ctx;\n        const opts = this.options;\n        const tickOpts = opts.ticks;\n        if (!tickOpts.display) {\n            return;\n        }\n        const startAngle = this.getIndexAngle(0);\n        let offset, width;\n        ctx.save();\n        ctx.translate(this.xCenter, this.yCenter);\n        ctx.rotate(startAngle);\n        ctx.textAlign = 'center';\n        ctx.textBaseline = 'middle';\n        this.ticks.forEach((tick, index)=>{\n            if (index === 0 && !opts.reverse) {\n                return;\n            }\n            const optsAtIndex = tickOpts.setContext(this.getContext(index));\n            const tickFont = toFont(optsAtIndex.font);\n            offset = this.getDistanceFromCenterForValue(this.ticks[index].value);\n            if (optsAtIndex.showLabelBackdrop) {\n                ctx.font = tickFont.string;\n                width = ctx.measureText(tick.label).width;\n                ctx.fillStyle = optsAtIndex.backdropColor;\n                const padding = toPadding(optsAtIndex.backdropPadding);\n                ctx.fillRect(-width / 2 - padding.left, -offset - tickFont.size / 2 - padding.top, width + padding.width, tickFont.size + padding.height);\n            }\n            renderText(ctx, tick.label, 0, -offset, tickFont, {\n                color: optsAtIndex.color\n            });\n        });\n        ctx.restore();\n    }\n drawTitle() {}\n}\n\nconst INTERVALS = {\n    millisecond: {\n        common: true,\n        size: 1,\n        steps: 1000\n    },\n    second: {\n        common: true,\n        size: 1000,\n        steps: 60\n    },\n    minute: {\n        common: true,\n        size: 60000,\n        steps: 60\n    },\n    hour: {\n        common: true,\n        size: 3600000,\n        steps: 24\n    },\n    day: {\n        common: true,\n        size: 86400000,\n        steps: 30\n    },\n    week: {\n        common: false,\n        size: 604800000,\n        steps: 4\n    },\n    month: {\n        common: true,\n        size: 2.628e9,\n        steps: 12\n    },\n    quarter: {\n        common: false,\n        size: 7.884e9,\n        steps: 4\n    },\n    year: {\n        common: true,\n        size: 3.154e10\n    }\n};\n const UNITS =  /* #__PURE__ */ Object.keys(INTERVALS);\n function sorter(a, b) {\n    return a - b;\n}\n function parse(scale, input) {\n    if (isNullOrUndef(input)) {\n        return null;\n    }\n    const adapter = scale._adapter;\n    const { parser , round , isoWeekday  } = scale._parseOpts;\n    let value = input;\n    if (typeof parser === 'function') {\n        value = parser(value);\n    }\n    if (!isNumberFinite(value)) {\n        value = typeof parser === 'string' ? adapter.parse(value,  parser) : adapter.parse(value);\n    }\n    if (value === null) {\n        return null;\n    }\n    if (round) {\n        value = round === 'week' && (isNumber(isoWeekday) || isoWeekday === true) ? adapter.startOf(value, 'isoWeek', isoWeekday) : adapter.startOf(value, round);\n    }\n    return +value;\n}\n function determineUnitForAutoTicks(minUnit, min, max, capacity) {\n    const ilen = UNITS.length;\n    for(let i = UNITS.indexOf(minUnit); i < ilen - 1; ++i){\n        const interval = INTERVALS[UNITS[i]];\n        const factor = interval.steps ? interval.steps : Number.MAX_SAFE_INTEGER;\n        if (interval.common && Math.ceil((max - min) / (factor * interval.size)) <= capacity) {\n            return UNITS[i];\n        }\n    }\n    return UNITS[ilen - 1];\n}\n function determineUnitForFormatting(scale, numTicks, minUnit, min, max) {\n    for(let i = UNITS.length - 1; i >= UNITS.indexOf(minUnit); i--){\n        const unit = UNITS[i];\n        if (INTERVALS[unit].common && scale._adapter.diff(max, min, unit) >= numTicks - 1) {\n            return unit;\n        }\n    }\n    return UNITS[minUnit ? UNITS.indexOf(minUnit) : 0];\n}\n function determineMajorUnit(unit) {\n    for(let i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i){\n        if (INTERVALS[UNITS[i]].common) {\n            return UNITS[i];\n        }\n    }\n}\n function addTick(ticks, time, timestamps) {\n    if (!timestamps) {\n        ticks[time] = true;\n    } else if (timestamps.length) {\n        const { lo , hi  } = _lookup(timestamps, time);\n        const timestamp = timestamps[lo] >= time ? timestamps[lo] : timestamps[hi];\n        ticks[timestamp] = true;\n    }\n}\n function setMajorTicks(scale, ticks, map, majorUnit) {\n    const adapter = scale._adapter;\n    const first = +adapter.startOf(ticks[0].value, majorUnit);\n    const last = ticks[ticks.length - 1].value;\n    let major, index;\n    for(major = first; major <= last; major = +adapter.add(major, 1, majorUnit)){\n        index = map[major];\n        if (index >= 0) {\n            ticks[index].major = true;\n        }\n    }\n    return ticks;\n}\n function ticksFromTimestamps(scale, values, majorUnit) {\n    const ticks = [];\n     const map = {};\n    const ilen = values.length;\n    let i, value;\n    for(i = 0; i < ilen; ++i){\n        value = values[i];\n        map[value] = i;\n        ticks.push({\n            value,\n            major: false\n        });\n    }\n    return ilen === 0 || !majorUnit ? ticks : setMajorTicks(scale, ticks, map, majorUnit);\n}\nclass TimeScale extends Scale {\n    static id = 'time';\n static defaults = {\n bounds: 'data',\n        adapters: {},\n        time: {\n            parser: false,\n            unit: false,\n            round: false,\n            isoWeekday: false,\n            minUnit: 'millisecond',\n            displayFormats: {}\n        },\n        ticks: {\n source: 'auto',\n            callback: false,\n            major: {\n                enabled: false\n            }\n        }\n    };\n constructor(props){\n        super(props);\n         this._cache = {\n            data: [],\n            labels: [],\n            all: []\n        };\n         this._unit = 'day';\n         this._majorUnit = undefined;\n        this._offsets = {};\n        this._normalized = false;\n        this._parseOpts = undefined;\n    }\n    init(scaleOpts, opts = {}) {\n        const time = scaleOpts.time || (scaleOpts.time = {});\n         const adapter = this._adapter = new adapters._date(scaleOpts.adapters.date);\n        adapter.init(opts);\n        mergeIf(time.displayFormats, adapter.formats());\n        this._parseOpts = {\n            parser: time.parser,\n            round: time.round,\n            isoWeekday: time.isoWeekday\n        };\n        super.init(scaleOpts);\n        this._normalized = opts.normalized;\n    }\n parse(raw, index) {\n        if (raw === undefined) {\n            return null;\n        }\n        return parse(this, raw);\n    }\n    beforeLayout() {\n        super.beforeLayout();\n        this._cache = {\n            data: [],\n            labels: [],\n            all: []\n        };\n    }\n    determineDataLimits() {\n        const options = this.options;\n        const adapter = this._adapter;\n        const unit = options.time.unit || 'day';\n        let { min , max , minDefined , maxDefined  } = this.getUserBounds();\n function _applyBounds(bounds) {\n            if (!minDefined && !isNaN(bounds.min)) {\n                min = Math.min(min, bounds.min);\n            }\n            if (!maxDefined && !isNaN(bounds.max)) {\n                max = Math.max(max, bounds.max);\n            }\n        }\n        if (!minDefined || !maxDefined) {\n            _applyBounds(this._getLabelBounds());\n            if (options.bounds !== 'ticks' || options.ticks.source !== 'labels') {\n                _applyBounds(this.getMinMax(false));\n            }\n        }\n        min = isNumberFinite(min) && !isNaN(min) ? min : +adapter.startOf(Date.now(), unit);\n        max = isNumberFinite(max) && !isNaN(max) ? max : +adapter.endOf(Date.now(), unit) + 1;\n        this.min = Math.min(min, max - 1);\n        this.max = Math.max(min + 1, max);\n    }\n _getLabelBounds() {\n        const arr = this.getLabelTimestamps();\n        let min = Number.POSITIVE_INFINITY;\n        let max = Number.NEGATIVE_INFINITY;\n        if (arr.length) {\n            min = arr[0];\n            max = arr[arr.length - 1];\n        }\n        return {\n            min,\n            max\n        };\n    }\n buildTicks() {\n        const options = this.options;\n        const timeOpts = options.time;\n        const tickOpts = options.ticks;\n        const timestamps = tickOpts.source === 'labels' ? this.getLabelTimestamps() : this._generate();\n        if (options.bounds === 'ticks' && timestamps.length) {\n            this.min = this._userMin || timestamps[0];\n            this.max = this._userMax || timestamps[timestamps.length - 1];\n        }\n        const min = this.min;\n        const max = this.max;\n        const ticks = _filterBetween(timestamps, min, max);\n        this._unit = timeOpts.unit || (tickOpts.autoSkip ? determineUnitForAutoTicks(timeOpts.minUnit, this.min, this.max, this._getLabelCapacity(min)) : determineUnitForFormatting(this, ticks.length, timeOpts.minUnit, this.min, this.max));\n        this._majorUnit = !tickOpts.major.enabled || this._unit === 'year' ? undefined : determineMajorUnit(this._unit);\n        this.initOffsets(timestamps);\n        if (options.reverse) {\n            ticks.reverse();\n        }\n        return ticksFromTimestamps(this, ticks, this._majorUnit);\n    }\n    afterAutoSkip() {\n        if (this.options.offsetAfterAutoskip) {\n            this.initOffsets(this.ticks.map((tick)=>+tick.value));\n        }\n    }\n initOffsets(timestamps = []) {\n        let start = 0;\n        let end = 0;\n        let first, last;\n        if (this.options.offset && timestamps.length) {\n            first = this.getDecimalForValue(timestamps[0]);\n            if (timestamps.length === 1) {\n                start = 1 - first;\n            } else {\n                start = (this.getDecimalForValue(timestamps[1]) - first) / 2;\n            }\n            last = this.getDecimalForValue(timestamps[timestamps.length - 1]);\n            if (timestamps.length === 1) {\n                end = last;\n            } else {\n                end = (last - this.getDecimalForValue(timestamps[timestamps.length - 2])) / 2;\n            }\n        }\n        const limit = timestamps.length < 3 ? 0.5 : 0.25;\n        start = _limitValue(start, 0, limit);\n        end = _limitValue(end, 0, limit);\n        this._offsets = {\n            start,\n            end,\n            factor: 1 / (start + 1 + end)\n        };\n    }\n _generate() {\n        const adapter = this._adapter;\n        const min = this.min;\n        const max = this.max;\n        const options = this.options;\n        const timeOpts = options.time;\n        const minor = timeOpts.unit || determineUnitForAutoTicks(timeOpts.minUnit, min, max, this._getLabelCapacity(min));\n        const stepSize = valueOrDefault(options.ticks.stepSize, 1);\n        const weekday = minor === 'week' ? timeOpts.isoWeekday : false;\n        const hasWeekday = isNumber(weekday) || weekday === true;\n        const ticks = {};\n        let first = min;\n        let time, count;\n        if (hasWeekday) {\n            first = +adapter.startOf(first, 'isoWeek', weekday);\n        }\n        first = +adapter.startOf(first, hasWeekday ? 'day' : minor);\n        if (adapter.diff(max, min, minor) > 100000 * stepSize) {\n            throw new Error(min + ' and ' + max + ' are too far apart with stepSize of ' + stepSize + ' ' + minor);\n        }\n        const timestamps = options.ticks.source === 'data' && this.getDataTimestamps();\n        for(time = first, count = 0; time < max; time = +adapter.add(time, stepSize, minor), count++){\n            addTick(ticks, time, timestamps);\n        }\n        if (time === max || options.bounds === 'ticks' || count === 1) {\n            addTick(ticks, time, timestamps);\n        }\n        return Object.keys(ticks).sort((a, b)=>a - b).map((x)=>+x);\n    }\n getLabelForValue(value) {\n        const adapter = this._adapter;\n        const timeOpts = this.options.time;\n        if (timeOpts.tooltipFormat) {\n            return adapter.format(value, timeOpts.tooltipFormat);\n        }\n        return adapter.format(value, timeOpts.displayFormats.datetime);\n    }\n format(value, format) {\n        const options = this.options;\n        const formats = options.time.displayFormats;\n        const unit = this._unit;\n        const fmt = format || formats[unit];\n        return this._adapter.format(value, fmt);\n    }\n _tickFormatFunction(time, index, ticks, format) {\n        const options = this.options;\n        const formatter = options.ticks.callback;\n        if (formatter) {\n            return callback(formatter, [\n                time,\n                index,\n                ticks\n            ], this);\n        }\n        const formats = options.time.displayFormats;\n        const unit = this._unit;\n        const majorUnit = this._majorUnit;\n        const minorFormat = unit && formats[unit];\n        const majorFormat = majorUnit && formats[majorUnit];\n        const tick = ticks[index];\n        const major = majorUnit && majorFormat && tick && tick.major;\n        return this._adapter.format(time, format || (major ? majorFormat : minorFormat));\n    }\n generateTickLabels(ticks) {\n        let i, ilen, tick;\n        for(i = 0, ilen = ticks.length; i < ilen; ++i){\n            tick = ticks[i];\n            tick.label = this._tickFormatFunction(tick.value, i, ticks);\n        }\n    }\n getDecimalForValue(value) {\n        return value === null ? NaN : (value - this.min) / (this.max - this.min);\n    }\n getPixelForValue(value) {\n        const offsets = this._offsets;\n        const pos = this.getDecimalForValue(value);\n        return this.getPixelForDecimal((offsets.start + pos) * offsets.factor);\n    }\n getValueForPixel(pixel) {\n        const offsets = this._offsets;\n        const pos = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end;\n        return this.min + pos * (this.max - this.min);\n    }\n _getLabelSize(label) {\n        const ticksOpts = this.options.ticks;\n        const tickLabelWidth = this.ctx.measureText(label).width;\n        const angle = toRadians(this.isHorizontal() ? ticksOpts.maxRotation : ticksOpts.minRotation);\n        const cosRotation = Math.cos(angle);\n        const sinRotation = Math.sin(angle);\n        const tickFontSize = this._resolveTickFontOptions(0).size;\n        return {\n            w: tickLabelWidth * cosRotation + tickFontSize * sinRotation,\n            h: tickLabelWidth * sinRotation + tickFontSize * cosRotation\n        };\n    }\n _getLabelCapacity(exampleTime) {\n        const timeOpts = this.options.time;\n        const displayFormats = timeOpts.displayFormats;\n        const format = displayFormats[timeOpts.unit] || displayFormats.millisecond;\n        const exampleLabel = this._tickFormatFunction(exampleTime, 0, ticksFromTimestamps(this, [\n            exampleTime\n        ], this._majorUnit), format);\n        const size = this._getLabelSize(exampleLabel);\n        const capacity = Math.floor(this.isHorizontal() ? this.width / size.w : this.height / size.h) - 1;\n        return capacity > 0 ? capacity : 1;\n    }\n getDataTimestamps() {\n        let timestamps = this._cache.data || [];\n        let i, ilen;\n        if (timestamps.length) {\n            return timestamps;\n        }\n        const metas = this.getMatchingVisibleMetas();\n        if (this._normalized && metas.length) {\n            return this._cache.data = metas[0].controller.getAllParsedValues(this);\n        }\n        for(i = 0, ilen = metas.length; i < ilen; ++i){\n            timestamps = timestamps.concat(metas[i].controller.getAllParsedValues(this));\n        }\n        return this._cache.data = this.normalize(timestamps);\n    }\n getLabelTimestamps() {\n        const timestamps = this._cache.labels || [];\n        let i, ilen;\n        if (timestamps.length) {\n            return timestamps;\n        }\n        const labels = this.getLabels();\n        for(i = 0, ilen = labels.length; i < ilen; ++i){\n            timestamps.push(parse(this, labels[i]));\n        }\n        return this._cache.labels = this._normalized ? timestamps : this.normalize(timestamps);\n    }\n normalize(values) {\n        return _arrayUnique(values.sort(sorter));\n    }\n}\n\nfunction interpolate(table, val, reverse) {\n    let lo = 0;\n    let hi = table.length - 1;\n    let prevSource, nextSource, prevTarget, nextTarget;\n    if (reverse) {\n        if (val >= table[lo].pos && val <= table[hi].pos) {\n            ({ lo , hi  } = _lookupByKey(table, 'pos', val));\n        }\n        ({ pos: prevSource , time: prevTarget  } = table[lo]);\n        ({ pos: nextSource , time: nextTarget  } = table[hi]);\n    } else {\n        if (val >= table[lo].time && val <= table[hi].time) {\n            ({ lo , hi  } = _lookupByKey(table, 'time', val));\n        }\n        ({ time: prevSource , pos: prevTarget  } = table[lo]);\n        ({ time: nextSource , pos: nextTarget  } = table[hi]);\n    }\n    const span = nextSource - prevSource;\n    return span ? prevTarget + (nextTarget - prevTarget) * (val - prevSource) / span : prevTarget;\n}\nclass TimeSeriesScale extends TimeScale {\n    static id = 'timeseries';\n static defaults = TimeScale.defaults;\n constructor(props){\n        super(props);\n         this._table = [];\n         this._minPos = undefined;\n         this._tableRange = undefined;\n    }\n initOffsets() {\n        const timestamps = this._getTimestampsForTable();\n        const table = this._table = this.buildLookupTable(timestamps);\n        this._minPos = interpolate(table, this.min);\n        this._tableRange = interpolate(table, this.max) - this._minPos;\n        super.initOffsets(timestamps);\n    }\n buildLookupTable(timestamps) {\n        const { min , max  } = this;\n        const items = [];\n        const table = [];\n        let i, ilen, prev, curr, next;\n        for(i = 0, ilen = timestamps.length; i < ilen; ++i){\n            curr = timestamps[i];\n            if (curr >= min && curr <= max) {\n                items.push(curr);\n            }\n        }\n        if (items.length < 2) {\n            return [\n                {\n                    time: min,\n                    pos: 0\n                },\n                {\n                    time: max,\n                    pos: 1\n                }\n            ];\n        }\n        for(i = 0, ilen = items.length; i < ilen; ++i){\n            next = items[i + 1];\n            prev = items[i - 1];\n            curr = items[i];\n            if (Math.round((next + prev) / 2) !== curr) {\n                table.push({\n                    time: curr,\n                    pos: i / (ilen - 1)\n                });\n            }\n        }\n        return table;\n    }\n _getTimestampsForTable() {\n        let timestamps = this._cache.all || [];\n        if (timestamps.length) {\n            return timestamps;\n        }\n        const data = this.getDataTimestamps();\n        const label = this.getLabelTimestamps();\n        if (data.length && label.length) {\n            timestamps = this.normalize(data.concat(label));\n        } else {\n            timestamps = data.length ? data : label;\n        }\n        timestamps = this._cache.all = timestamps;\n        return timestamps;\n    }\n getDecimalForValue(value) {\n        return (interpolate(this._table, value) - this._minPos) / this._tableRange;\n    }\n getValueForPixel(pixel) {\n        const offsets = this._offsets;\n        const decimal = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end;\n        return interpolate(this._table, decimal * this._tableRange + this._minPos, true);\n    }\n}\n\nvar scales = /*#__PURE__*/Object.freeze({\n__proto__: null,\nCategoryScale: CategoryScale,\nLinearScale: LinearScale,\nLogarithmicScale: LogarithmicScale,\nRadialLinearScale: RadialLinearScale,\nTimeScale: TimeScale,\nTimeSeriesScale: TimeSeriesScale\n});\n\nconst registerables = [\n    controllers,\n    elements,\n    plugins,\n    scales\n];\n\nexport { Animation, Animations, ArcElement, BarController, BarElement, BasePlatform, BasicPlatform, BubbleController, CategoryScale, Chart, plugin_colors as Colors, DatasetController, plugin_decimation as Decimation, DomPlatform, DoughnutController, Element, index as Filler, Interaction, plugin_legend as Legend, LineController, LineElement, LinearScale, LogarithmicScale, PieController, PointElement, PolarAreaController, RadarController, RadialLinearScale, Scale, ScatterController, plugin_subtitle as SubTitle, Ticks, TimeScale, TimeSeriesScale, plugin_title as Title, plugin_tooltip as Tooltip, adapters as _adapters, _detectPlatform, animator, controllers, defaults, elements, layouts, plugins, registerables, registry, scales };\n//# sourceMappingURL=chart.js.map\n","/*!\n * Chart.js v4.3.0\n * https://www.chartjs.org\n * (c) 2023 Chart.js Contributors\n * Released under the MIT License\n */\nimport { Color } from '@kurkle/color';\n\n/**\n * @namespace Chart.helpers\n */ /**\n * An empty function that can be used, for example, for optional callback.\n */ function noop() {\n/* noop */ }\n/**\n * Returns a unique id, sequentially generated from a global variable.\n */ const uid = (()=>{\n    let id = 0;\n    return ()=>id++;\n})();\n/**\n * Returns true if `value` is neither null nor undefined, else returns false.\n * @param value - The value to test.\n * @since 2.7.0\n */ function isNullOrUndef(value) {\n    return value === null || typeof value === 'undefined';\n}\n/**\n * Returns true if `value` is an array (including typed arrays), else returns false.\n * @param value - The value to test.\n * @function\n */ function isArray(value) {\n    if (Array.isArray && Array.isArray(value)) {\n        return true;\n    }\n    const type = Object.prototype.toString.call(value);\n    if (type.slice(0, 7) === '[object' && type.slice(-6) === 'Array]') {\n        return true;\n    }\n    return false;\n}\n/**\n * Returns true if `value` is an object (excluding null), else returns false.\n * @param value - The value to test.\n * @since 2.7.0\n */ function isObject(value) {\n    return value !== null && Object.prototype.toString.call(value) === '[object Object]';\n}\n/**\n * Returns true if `value` is a finite number, else returns false\n * @param value  - The value to test.\n */ function isNumberFinite(value) {\n    return (typeof value === 'number' || value instanceof Number) && isFinite(+value);\n}\n/**\n * Returns `value` if finite, else returns `defaultValue`.\n * @param value - The value to return if defined.\n * @param defaultValue - The value to return if `value` is not finite.\n */ function finiteOrDefault(value, defaultValue) {\n    return isNumberFinite(value) ? value : defaultValue;\n}\n/**\n * Returns `value` if defined, else returns `defaultValue`.\n * @param value - The value to return if defined.\n * @param defaultValue - The value to return if `value` is undefined.\n */ function valueOrDefault(value, defaultValue) {\n    return typeof value === 'undefined' ? defaultValue : value;\n}\nconst toPercentage = (value, dimension)=>typeof value === 'string' && value.endsWith('%') ? parseFloat(value) / 100 : +value / dimension;\nconst toDimension = (value, dimension)=>typeof value === 'string' && value.endsWith('%') ? parseFloat(value) / 100 * dimension : +value;\n/**\n * Calls `fn` with the given `args` in the scope defined by `thisArg` and returns the\n * value returned by `fn`. If `fn` is not a function, this method returns undefined.\n * @param fn - The function to call.\n * @param args - The arguments with which `fn` should be called.\n * @param [thisArg] - The value of `this` provided for the call to `fn`.\n */ function callback(fn, args, thisArg) {\n    if (fn && typeof fn.call === 'function') {\n        return fn.apply(thisArg, args);\n    }\n}\nfunction each(loopable, fn, thisArg, reverse) {\n    let i, len, keys;\n    if (isArray(loopable)) {\n        len = loopable.length;\n        if (reverse) {\n            for(i = len - 1; i >= 0; i--){\n                fn.call(thisArg, loopable[i], i);\n            }\n        } else {\n            for(i = 0; i < len; i++){\n                fn.call(thisArg, loopable[i], i);\n            }\n        }\n    } else if (isObject(loopable)) {\n        keys = Object.keys(loopable);\n        len = keys.length;\n        for(i = 0; i < len; i++){\n            fn.call(thisArg, loopable[keys[i]], keys[i]);\n        }\n    }\n}\n/**\n * Returns true if the `a0` and `a1` arrays have the same content, else returns false.\n * @param a0 - The array to compare\n * @param a1 - The array to compare\n * @private\n */ function _elementsEqual(a0, a1) {\n    let i, ilen, v0, v1;\n    if (!a0 || !a1 || a0.length !== a1.length) {\n        return false;\n    }\n    for(i = 0, ilen = a0.length; i < ilen; ++i){\n        v0 = a0[i];\n        v1 = a1[i];\n        if (v0.datasetIndex !== v1.datasetIndex || v0.index !== v1.index) {\n            return false;\n        }\n    }\n    return true;\n}\n/**\n * Returns a deep copy of `source` without keeping references on objects and arrays.\n * @param source - The value to clone.\n */ function clone(source) {\n    if (isArray(source)) {\n        return source.map(clone);\n    }\n    if (isObject(source)) {\n        const target = Object.create(null);\n        const keys = Object.keys(source);\n        const klen = keys.length;\n        let k = 0;\n        for(; k < klen; ++k){\n            target[keys[k]] = clone(source[keys[k]]);\n        }\n        return target;\n    }\n    return source;\n}\nfunction isValidKey(key) {\n    return [\n        '__proto__',\n        'prototype',\n        'constructor'\n    ].indexOf(key) === -1;\n}\n/**\n * The default merger when Chart.helpers.merge is called without merger option.\n * Note(SB): also used by mergeConfig and mergeScaleConfig as fallback.\n * @private\n */ function _merger(key, target, source, options) {\n    if (!isValidKey(key)) {\n        return;\n    }\n    const tval = target[key];\n    const sval = source[key];\n    if (isObject(tval) && isObject(sval)) {\n        // eslint-disable-next-line @typescript-eslint/no-use-before-define\n        merge(tval, sval, options);\n    } else {\n        target[key] = clone(sval);\n    }\n}\nfunction merge(target, source, options) {\n    const sources = isArray(source) ? source : [\n        source\n    ];\n    const ilen = sources.length;\n    if (!isObject(target)) {\n        return target;\n    }\n    options = options || {};\n    const merger = options.merger || _merger;\n    let current;\n    for(let i = 0; i < ilen; ++i){\n        current = sources[i];\n        if (!isObject(current)) {\n            continue;\n        }\n        const keys = Object.keys(current);\n        for(let k = 0, klen = keys.length; k < klen; ++k){\n            merger(keys[k], target, current, options);\n        }\n    }\n    return target;\n}\nfunction mergeIf(target, source) {\n    // eslint-disable-next-line @typescript-eslint/no-use-before-define\n    return merge(target, source, {\n        merger: _mergerIf\n    });\n}\n/**\n * Merges source[key] in target[key] only if target[key] is undefined.\n * @private\n */ function _mergerIf(key, target, source) {\n    if (!isValidKey(key)) {\n        return;\n    }\n    const tval = target[key];\n    const sval = source[key];\n    if (isObject(tval) && isObject(sval)) {\n        mergeIf(tval, sval);\n    } else if (!Object.prototype.hasOwnProperty.call(target, key)) {\n        target[key] = clone(sval);\n    }\n}\n/**\n * @private\n */ function _deprecated(scope, value, previous, current) {\n    if (value !== undefined) {\n        console.warn(scope + ': \"' + previous + '\" is deprecated. Please use \"' + current + '\" instead');\n    }\n}\n// resolveObjectKey resolver cache\nconst keyResolvers = {\n    // Chart.helpers.core resolveObjectKey should resolve empty key to root object\n    '': (v)=>v,\n    // default resolvers\n    x: (o)=>o.x,\n    y: (o)=>o.y\n};\n/**\n * @private\n */ function _splitKey(key) {\n    const parts = key.split('.');\n    const keys = [];\n    let tmp = '';\n    for (const part of parts){\n        tmp += part;\n        if (tmp.endsWith('\\\\')) {\n            tmp = tmp.slice(0, -1) + '.';\n        } else {\n            keys.push(tmp);\n            tmp = '';\n        }\n    }\n    return keys;\n}\nfunction _getKeyResolver(key) {\n    const keys = _splitKey(key);\n    return (obj)=>{\n        for (const k of keys){\n            if (k === '') {\n                break;\n            }\n            obj = obj && obj[k];\n        }\n        return obj;\n    };\n}\nfunction resolveObjectKey(obj, key) {\n    const resolver = keyResolvers[key] || (keyResolvers[key] = _getKeyResolver(key));\n    return resolver(obj);\n}\n/**\n * @private\n */ function _capitalize(str) {\n    return str.charAt(0).toUpperCase() + str.slice(1);\n}\nconst defined = (value)=>typeof value !== 'undefined';\nconst isFunction = (value)=>typeof value === 'function';\n// Adapted from https://stackoverflow.com/questions/31128855/comparing-ecma6-sets-for-equality#31129384\nconst setsEqual = (a, b)=>{\n    if (a.size !== b.size) {\n        return false;\n    }\n    for (const item of a){\n        if (!b.has(item)) {\n            return false;\n        }\n    }\n    return true;\n};\n/**\n * @param e - The event\n * @private\n */ function _isClickEvent(e) {\n    return e.type === 'mouseup' || e.type === 'click' || e.type === 'contextmenu';\n}\n\n/**\n * @alias Chart.helpers.math\n * @namespace\n */ const PI = Math.PI;\nconst TAU = 2 * PI;\nconst PITAU = TAU + PI;\nconst INFINITY = Number.POSITIVE_INFINITY;\nconst RAD_PER_DEG = PI / 180;\nconst HALF_PI = PI / 2;\nconst QUARTER_PI = PI / 4;\nconst TWO_THIRDS_PI = PI * 2 / 3;\nconst log10 = Math.log10;\nconst sign = Math.sign;\nfunction almostEquals(x, y, epsilon) {\n    return Math.abs(x - y) < epsilon;\n}\n/**\n * Implementation of the nice number algorithm used in determining where axis labels will go\n */ function niceNum(range) {\n    const roundedRange = Math.round(range);\n    range = almostEquals(range, roundedRange, range / 1000) ? roundedRange : range;\n    const niceRange = Math.pow(10, Math.floor(log10(range)));\n    const fraction = range / niceRange;\n    const niceFraction = fraction <= 1 ? 1 : fraction <= 2 ? 2 : fraction <= 5 ? 5 : 10;\n    return niceFraction * niceRange;\n}\n/**\n * Returns an array of factors sorted from 1 to sqrt(value)\n * @private\n */ function _factorize(value) {\n    const result = [];\n    const sqrt = Math.sqrt(value);\n    let i;\n    for(i = 1; i < sqrt; i++){\n        if (value % i === 0) {\n            result.push(i);\n            result.push(value / i);\n        }\n    }\n    if (sqrt === (sqrt | 0)) {\n        result.push(sqrt);\n    }\n    result.sort((a, b)=>a - b).pop();\n    return result;\n}\nfunction isNumber(n) {\n    return !isNaN(parseFloat(n)) && isFinite(n);\n}\nfunction almostWhole(x, epsilon) {\n    const rounded = Math.round(x);\n    return rounded - epsilon <= x && rounded + epsilon >= x;\n}\n/**\n * @private\n */ function _setMinAndMaxByKey(array, target, property) {\n    let i, ilen, value;\n    for(i = 0, ilen = array.length; i < ilen; i++){\n        value = array[i][property];\n        if (!isNaN(value)) {\n            target.min = Math.min(target.min, value);\n            target.max = Math.max(target.max, value);\n        }\n    }\n}\nfunction toRadians(degrees) {\n    return degrees * (PI / 180);\n}\nfunction toDegrees(radians) {\n    return radians * (180 / PI);\n}\n/**\n * Returns the number of decimal places\n * i.e. the number of digits after the decimal point, of the value of this Number.\n * @param x - A number.\n * @returns The number of decimal places.\n * @private\n */ function _decimalPlaces(x) {\n    if (!isNumberFinite(x)) {\n        return;\n    }\n    let e = 1;\n    let p = 0;\n    while(Math.round(x * e) / e !== x){\n        e *= 10;\n        p++;\n    }\n    return p;\n}\n// Gets the angle from vertical upright to the point about a centre.\nfunction getAngleFromPoint(centrePoint, anglePoint) {\n    const distanceFromXCenter = anglePoint.x - centrePoint.x;\n    const distanceFromYCenter = anglePoint.y - centrePoint.y;\n    const radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter);\n    let angle = Math.atan2(distanceFromYCenter, distanceFromXCenter);\n    if (angle < -0.5 * PI) {\n        angle += TAU; // make sure the returned angle is in the range of (-PI/2, 3PI/2]\n    }\n    return {\n        angle,\n        distance: radialDistanceFromCenter\n    };\n}\nfunction distanceBetweenPoints(pt1, pt2) {\n    return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2));\n}\n/**\n * Shortest distance between angles, in either direction.\n * @private\n */ function _angleDiff(a, b) {\n    return (a - b + PITAU) % TAU - PI;\n}\n/**\n * Normalize angle to be between 0 and 2*PI\n * @private\n */ function _normalizeAngle(a) {\n    return (a % TAU + TAU) % TAU;\n}\n/**\n * @private\n */ function _angleBetween(angle, start, end, sameAngleIsFullCircle) {\n    const a = _normalizeAngle(angle);\n    const s = _normalizeAngle(start);\n    const e = _normalizeAngle(end);\n    const angleToStart = _normalizeAngle(s - a);\n    const angleToEnd = _normalizeAngle(e - a);\n    const startToAngle = _normalizeAngle(a - s);\n    const endToAngle = _normalizeAngle(a - e);\n    return a === s || a === e || sameAngleIsFullCircle && s === e || angleToStart > angleToEnd && startToAngle < endToAngle;\n}\n/**\n * Limit `value` between `min` and `max`\n * @param value\n * @param min\n * @param max\n * @private\n */ function _limitValue(value, min, max) {\n    return Math.max(min, Math.min(max, value));\n}\n/**\n * @param {number} value\n * @private\n */ function _int16Range(value) {\n    return _limitValue(value, -32768, 32767);\n}\n/**\n * @param value\n * @param start\n * @param end\n * @param [epsilon]\n * @private\n */ function _isBetween(value, start, end, epsilon = 1e-6) {\n    return value >= Math.min(start, end) - epsilon && value <= Math.max(start, end) + epsilon;\n}\n\nfunction _lookup(table, value, cmp) {\n    cmp = cmp || ((index)=>table[index] < value);\n    let hi = table.length - 1;\n    let lo = 0;\n    let mid;\n    while(hi - lo > 1){\n        mid = lo + hi >> 1;\n        if (cmp(mid)) {\n            lo = mid;\n        } else {\n            hi = mid;\n        }\n    }\n    return {\n        lo,\n        hi\n    };\n}\n/**\n * Binary search\n * @param table - the table search. must be sorted!\n * @param key - property name for the value in each entry\n * @param value - value to find\n * @param last - lookup last index\n * @private\n */ const _lookupByKey = (table, key, value, last)=>_lookup(table, value, last ? (index)=>{\n        const ti = table[index][key];\n        return ti < value || ti === value && table[index + 1][key] === value;\n    } : (index)=>table[index][key] < value);\n/**\n * Reverse binary search\n * @param table - the table search. must be sorted!\n * @param key - property name for the value in each entry\n * @param value - value to find\n * @private\n */ const _rlookupByKey = (table, key, value)=>_lookup(table, value, (index)=>table[index][key] >= value);\n/**\n * Return subset of `values` between `min` and `max` inclusive.\n * Values are assumed to be in sorted order.\n * @param values - sorted array of values\n * @param min - min value\n * @param max - max value\n */ function _filterBetween(values, min, max) {\n    let start = 0;\n    let end = values.length;\n    while(start < end && values[start] < min){\n        start++;\n    }\n    while(end > start && values[end - 1] > max){\n        end--;\n    }\n    return start > 0 || end < values.length ? values.slice(start, end) : values;\n}\nconst arrayEvents = [\n    'push',\n    'pop',\n    'shift',\n    'splice',\n    'unshift'\n];\nfunction listenArrayEvents(array, listener) {\n    if (array._chartjs) {\n        array._chartjs.listeners.push(listener);\n        return;\n    }\n    Object.defineProperty(array, '_chartjs', {\n        configurable: true,\n        enumerable: false,\n        value: {\n            listeners: [\n                listener\n            ]\n        }\n    });\n    arrayEvents.forEach((key)=>{\n        const method = '_onData' + _capitalize(key);\n        const base = array[key];\n        Object.defineProperty(array, key, {\n            configurable: true,\n            enumerable: false,\n            value (...args) {\n                const res = base.apply(this, args);\n                array._chartjs.listeners.forEach((object)=>{\n                    if (typeof object[method] === 'function') {\n                        object[method](...args);\n                    }\n                });\n                return res;\n            }\n        });\n    });\n}\nfunction unlistenArrayEvents(array, listener) {\n    const stub = array._chartjs;\n    if (!stub) {\n        return;\n    }\n    const listeners = stub.listeners;\n    const index = listeners.indexOf(listener);\n    if (index !== -1) {\n        listeners.splice(index, 1);\n    }\n    if (listeners.length > 0) {\n        return;\n    }\n    arrayEvents.forEach((key)=>{\n        delete array[key];\n    });\n    delete array._chartjs;\n}\n/**\n * @param items\n */ function _arrayUnique(items) {\n    const set = new Set(items);\n    if (set.size === items.length) {\n        return items;\n    }\n    return Array.from(set);\n}\n\nfunction fontString(pixelSize, fontStyle, fontFamily) {\n    return fontStyle + ' ' + pixelSize + 'px ' + fontFamily;\n}\n/**\n* Request animation polyfill\n*/ const requestAnimFrame = function() {\n    if (typeof window === 'undefined') {\n        return function(callback) {\n            return callback();\n        };\n    }\n    return window.requestAnimationFrame;\n}();\n/**\n * Throttles calling `fn` once per animation frame\n * Latest arguments are used on the actual call\n */ function throttled(fn, thisArg) {\n    let argsToUse = [];\n    let ticking = false;\n    return function(...args) {\n        // Save the args for use later\n        argsToUse = args;\n        if (!ticking) {\n            ticking = true;\n            requestAnimFrame.call(window, ()=>{\n                ticking = false;\n                fn.apply(thisArg, argsToUse);\n            });\n        }\n    };\n}\n/**\n * Debounces calling `fn` for `delay` ms\n */ function debounce(fn, delay) {\n    let timeout;\n    return function(...args) {\n        if (delay) {\n            clearTimeout(timeout);\n            timeout = setTimeout(fn, delay, args);\n        } else {\n            fn.apply(this, args);\n        }\n        return delay;\n    };\n}\n/**\n * Converts 'start' to 'left', 'end' to 'right' and others to 'center'\n * @private\n */ const _toLeftRightCenter = (align)=>align === 'start' ? 'left' : align === 'end' ? 'right' : 'center';\n/**\n * Returns `start`, `end` or `(start + end) / 2` depending on `align`. Defaults to `center`\n * @private\n */ const _alignStartEnd = (align, start, end)=>align === 'start' ? start : align === 'end' ? end : (start + end) / 2;\n/**\n * Returns `left`, `right` or `(left + right) / 2` depending on `align`. Defaults to `left`\n * @private\n */ const _textX = (align, left, right, rtl)=>{\n    const check = rtl ? 'left' : 'right';\n    return align === check ? right : align === 'center' ? (left + right) / 2 : left;\n};\n/**\n * Return start and count of visible points.\n * @private\n */ function _getStartAndCountOfVisiblePoints(meta, points, animationsDisabled) {\n    const pointCount = points.length;\n    let start = 0;\n    let count = pointCount;\n    if (meta._sorted) {\n        const { iScale , _parsed  } = meta;\n        const axis = iScale.axis;\n        const { min , max , minDefined , maxDefined  } = iScale.getUserBounds();\n        if (minDefined) {\n            start = _limitValue(Math.min(// @ts-expect-error Need to type _parsed\n            _lookupByKey(_parsed, iScale.axis, min).lo, // @ts-expect-error Need to fix types on _lookupByKey\n            animationsDisabled ? pointCount : _lookupByKey(points, axis, iScale.getPixelForValue(min)).lo), 0, pointCount - 1);\n        }\n        if (maxDefined) {\n            count = _limitValue(Math.max(// @ts-expect-error Need to type _parsed\n            _lookupByKey(_parsed, iScale.axis, max, true).hi + 1, // @ts-expect-error Need to fix types on _lookupByKey\n            animationsDisabled ? 0 : _lookupByKey(points, axis, iScale.getPixelForValue(max), true).hi + 1), start, pointCount) - start;\n        } else {\n            count = pointCount - start;\n        }\n    }\n    return {\n        start,\n        count\n    };\n}\n/**\n * Checks if the scale ranges have changed.\n * @param {object} meta - dataset meta.\n * @returns {boolean}\n * @private\n */ function _scaleRangesChanged(meta) {\n    const { xScale , yScale , _scaleRanges  } = meta;\n    const newRanges = {\n        xmin: xScale.min,\n        xmax: xScale.max,\n        ymin: yScale.min,\n        ymax: yScale.max\n    };\n    if (!_scaleRanges) {\n        meta._scaleRanges = newRanges;\n        return true;\n    }\n    const changed = _scaleRanges.xmin !== xScale.min || _scaleRanges.xmax !== xScale.max || _scaleRanges.ymin !== yScale.min || _scaleRanges.ymax !== yScale.max;\n    Object.assign(_scaleRanges, newRanges);\n    return changed;\n}\n\nconst atEdge = (t)=>t === 0 || t === 1;\nconst elasticIn = (t, s, p)=>-(Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * TAU / p));\nconst elasticOut = (t, s, p)=>Math.pow(2, -10 * t) * Math.sin((t - s) * TAU / p) + 1;\n/**\n * Easing functions adapted from Robert Penner's easing equations.\n * @namespace Chart.helpers.easing.effects\n * @see http://www.robertpenner.com/easing/\n */ const effects = {\n    linear: (t)=>t,\n    easeInQuad: (t)=>t * t,\n    easeOutQuad: (t)=>-t * (t - 2),\n    easeInOutQuad: (t)=>(t /= 0.5) < 1 ? 0.5 * t * t : -0.5 * (--t * (t - 2) - 1),\n    easeInCubic: (t)=>t * t * t,\n    easeOutCubic: (t)=>(t -= 1) * t * t + 1,\n    easeInOutCubic: (t)=>(t /= 0.5) < 1 ? 0.5 * t * t * t : 0.5 * ((t -= 2) * t * t + 2),\n    easeInQuart: (t)=>t * t * t * t,\n    easeOutQuart: (t)=>-((t -= 1) * t * t * t - 1),\n    easeInOutQuart: (t)=>(t /= 0.5) < 1 ? 0.5 * t * t * t * t : -0.5 * ((t -= 2) * t * t * t - 2),\n    easeInQuint: (t)=>t * t * t * t * t,\n    easeOutQuint: (t)=>(t -= 1) * t * t * t * t + 1,\n    easeInOutQuint: (t)=>(t /= 0.5) < 1 ? 0.5 * t * t * t * t * t : 0.5 * ((t -= 2) * t * t * t * t + 2),\n    easeInSine: (t)=>-Math.cos(t * HALF_PI) + 1,\n    easeOutSine: (t)=>Math.sin(t * HALF_PI),\n    easeInOutSine: (t)=>-0.5 * (Math.cos(PI * t) - 1),\n    easeInExpo: (t)=>t === 0 ? 0 : Math.pow(2, 10 * (t - 1)),\n    easeOutExpo: (t)=>t === 1 ? 1 : -Math.pow(2, -10 * t) + 1,\n    easeInOutExpo: (t)=>atEdge(t) ? t : t < 0.5 ? 0.5 * Math.pow(2, 10 * (t * 2 - 1)) : 0.5 * (-Math.pow(2, -10 * (t * 2 - 1)) + 2),\n    easeInCirc: (t)=>t >= 1 ? t : -(Math.sqrt(1 - t * t) - 1),\n    easeOutCirc: (t)=>Math.sqrt(1 - (t -= 1) * t),\n    easeInOutCirc: (t)=>(t /= 0.5) < 1 ? -0.5 * (Math.sqrt(1 - t * t) - 1) : 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1),\n    easeInElastic: (t)=>atEdge(t) ? t : elasticIn(t, 0.075, 0.3),\n    easeOutElastic: (t)=>atEdge(t) ? t : elasticOut(t, 0.075, 0.3),\n    easeInOutElastic (t) {\n        const s = 0.1125;\n        const p = 0.45;\n        return atEdge(t) ? t : t < 0.5 ? 0.5 * elasticIn(t * 2, s, p) : 0.5 + 0.5 * elasticOut(t * 2 - 1, s, p);\n    },\n    easeInBack (t) {\n        const s = 1.70158;\n        return t * t * ((s + 1) * t - s);\n    },\n    easeOutBack (t) {\n        const s = 1.70158;\n        return (t -= 1) * t * ((s + 1) * t + s) + 1;\n    },\n    easeInOutBack (t) {\n        let s = 1.70158;\n        if ((t /= 0.5) < 1) {\n            return 0.5 * (t * t * (((s *= 1.525) + 1) * t - s));\n        }\n        return 0.5 * ((t -= 2) * t * (((s *= 1.525) + 1) * t + s) + 2);\n    },\n    easeInBounce: (t)=>1 - effects.easeOutBounce(1 - t),\n    easeOutBounce (t) {\n        const m = 7.5625;\n        const d = 2.75;\n        if (t < 1 / d) {\n            return m * t * t;\n        }\n        if (t < 2 / d) {\n            return m * (t -= 1.5 / d) * t + 0.75;\n        }\n        if (t < 2.5 / d) {\n            return m * (t -= 2.25 / d) * t + 0.9375;\n        }\n        return m * (t -= 2.625 / d) * t + 0.984375;\n    },\n    easeInOutBounce: (t)=>t < 0.5 ? effects.easeInBounce(t * 2) * 0.5 : effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5\n};\n\nfunction isPatternOrGradient(value) {\n    if (value && typeof value === 'object') {\n        const type = value.toString();\n        return type === '[object CanvasPattern]' || type === '[object CanvasGradient]';\n    }\n    return false;\n}\nfunction color(value) {\n    return isPatternOrGradient(value) ? value : new Color(value);\n}\nfunction getHoverColor(value) {\n    return isPatternOrGradient(value) ? value : new Color(value).saturate(0.5).darken(0.1).hexString();\n}\n\nconst numbers = [\n    'x',\n    'y',\n    'borderWidth',\n    'radius',\n    'tension'\n];\nconst colors = [\n    'color',\n    'borderColor',\n    'backgroundColor'\n];\nfunction applyAnimationsDefaults(defaults) {\n    defaults.set('animation', {\n        delay: undefined,\n        duration: 1000,\n        easing: 'easeOutQuart',\n        fn: undefined,\n        from: undefined,\n        loop: undefined,\n        to: undefined,\n        type: undefined\n    });\n    defaults.describe('animation', {\n        _fallback: false,\n        _indexable: false,\n        _scriptable: (name)=>name !== 'onProgress' && name !== 'onComplete' && name !== 'fn'\n    });\n    defaults.set('animations', {\n        colors: {\n            type: 'color',\n            properties: colors\n        },\n        numbers: {\n            type: 'number',\n            properties: numbers\n        }\n    });\n    defaults.describe('animations', {\n        _fallback: 'animation'\n    });\n    defaults.set('transitions', {\n        active: {\n            animation: {\n                duration: 400\n            }\n        },\n        resize: {\n            animation: {\n                duration: 0\n            }\n        },\n        show: {\n            animations: {\n                colors: {\n                    from: 'transparent'\n                },\n                visible: {\n                    type: 'boolean',\n                    duration: 0\n                }\n            }\n        },\n        hide: {\n            animations: {\n                colors: {\n                    to: 'transparent'\n                },\n                visible: {\n                    type: 'boolean',\n                    easing: 'linear',\n                    fn: (v)=>v | 0\n                }\n            }\n        }\n    });\n}\n\nfunction applyLayoutsDefaults(defaults) {\n    defaults.set('layout', {\n        autoPadding: true,\n        padding: {\n            top: 0,\n            right: 0,\n            bottom: 0,\n            left: 0\n        }\n    });\n}\n\nconst intlCache = new Map();\nfunction getNumberFormat(locale, options) {\n    options = options || {};\n    const cacheKey = locale + JSON.stringify(options);\n    let formatter = intlCache.get(cacheKey);\n    if (!formatter) {\n        formatter = new Intl.NumberFormat(locale, options);\n        intlCache.set(cacheKey, formatter);\n    }\n    return formatter;\n}\nfunction formatNumber(num, locale, options) {\n    return getNumberFormat(locale, options).format(num);\n}\n\nconst formatters = {\n values (value) {\n        return isArray(value) ?  value : '' + value;\n    },\n numeric (tickValue, index, ticks) {\n        if (tickValue === 0) {\n            return '0';\n        }\n        const locale = this.chart.options.locale;\n        let notation;\n        let delta = tickValue;\n        if (ticks.length > 1) {\n            const maxTick = Math.max(Math.abs(ticks[0].value), Math.abs(ticks[ticks.length - 1].value));\n            if (maxTick < 1e-4 || maxTick > 1e+15) {\n                notation = 'scientific';\n            }\n            delta = calculateDelta(tickValue, ticks);\n        }\n        const logDelta = log10(Math.abs(delta));\n        const numDecimal = isNaN(logDelta) ? 1 : Math.max(Math.min(-1 * Math.floor(logDelta), 20), 0);\n        const options = {\n            notation,\n            minimumFractionDigits: numDecimal,\n            maximumFractionDigits: numDecimal\n        };\n        Object.assign(options, this.options.ticks.format);\n        return formatNumber(tickValue, locale, options);\n    },\n logarithmic (tickValue, index, ticks) {\n        if (tickValue === 0) {\n            return '0';\n        }\n        const remain = ticks[index].significand || tickValue / Math.pow(10, Math.floor(log10(tickValue)));\n        if ([\n            1,\n            2,\n            3,\n            5,\n            10,\n            15\n        ].includes(remain) || index > 0.8 * ticks.length) {\n            return formatters.numeric.call(this, tickValue, index, ticks);\n        }\n        return '';\n    }\n};\nfunction calculateDelta(tickValue, ticks) {\n    let delta = ticks.length > 3 ? ticks[2].value - ticks[1].value : ticks[1].value - ticks[0].value;\n    if (Math.abs(delta) >= 1 && tickValue !== Math.floor(tickValue)) {\n        delta = tickValue - Math.floor(tickValue);\n    }\n    return delta;\n}\n var Ticks = {\n    formatters\n};\n\nfunction applyScaleDefaults(defaults) {\n    defaults.set('scale', {\n        display: true,\n        offset: false,\n        reverse: false,\n        beginAtZero: false,\n bounds: 'ticks',\n grace: 0,\n        grid: {\n            display: true,\n            lineWidth: 1,\n            drawOnChartArea: true,\n            drawTicks: true,\n            tickLength: 8,\n            tickWidth: (_ctx, options)=>options.lineWidth,\n            tickColor: (_ctx, options)=>options.color,\n            offset: false\n        },\n        border: {\n            display: true,\n            dash: [],\n            dashOffset: 0.0,\n            width: 1\n        },\n        title: {\n            display: false,\n            text: '',\n            padding: {\n                top: 4,\n                bottom: 4\n            }\n        },\n        ticks: {\n            minRotation: 0,\n            maxRotation: 50,\n            mirror: false,\n            textStrokeWidth: 0,\n            textStrokeColor: '',\n            padding: 3,\n            display: true,\n            autoSkip: true,\n            autoSkipPadding: 3,\n            labelOffset: 0,\n            callback: Ticks.formatters.values,\n            minor: {},\n            major: {},\n            align: 'center',\n            crossAlign: 'near',\n            showLabelBackdrop: false,\n            backdropColor: 'rgba(255, 255, 255, 0.75)',\n            backdropPadding: 2\n        }\n    });\n    defaults.route('scale.ticks', 'color', '', 'color');\n    defaults.route('scale.grid', 'color', '', 'borderColor');\n    defaults.route('scale.border', 'color', '', 'borderColor');\n    defaults.route('scale.title', 'color', '', 'color');\n    defaults.describe('scale', {\n        _fallback: false,\n        _scriptable: (name)=>!name.startsWith('before') && !name.startsWith('after') && name !== 'callback' && name !== 'parser',\n        _indexable: (name)=>name !== 'borderDash' && name !== 'tickBorderDash' && name !== 'dash'\n    });\n    defaults.describe('scales', {\n        _fallback: 'scale'\n    });\n    defaults.describe('scale.ticks', {\n        _scriptable: (name)=>name !== 'backdropPadding' && name !== 'callback',\n        _indexable: (name)=>name !== 'backdropPadding'\n    });\n}\n\nconst overrides = Object.create(null);\nconst descriptors = Object.create(null);\n function getScope$1(node, key) {\n    if (!key) {\n        return node;\n    }\n    const keys = key.split('.');\n    for(let i = 0, n = keys.length; i < n; ++i){\n        const k = keys[i];\n        node = node[k] || (node[k] = Object.create(null));\n    }\n    return node;\n}\nfunction set(root, scope, values) {\n    if (typeof scope === 'string') {\n        return merge(getScope$1(root, scope), values);\n    }\n    return merge(getScope$1(root, ''), scope);\n}\n class Defaults {\n    constructor(_descriptors, _appliers){\n        this.animation = undefined;\n        this.backgroundColor = 'rgba(0,0,0,0.1)';\n        this.borderColor = 'rgba(0,0,0,0.1)';\n        this.color = '#666';\n        this.datasets = {};\n        this.devicePixelRatio = (context)=>context.chart.platform.getDevicePixelRatio();\n        this.elements = {};\n        this.events = [\n            'mousemove',\n            'mouseout',\n            'click',\n            'touchstart',\n            'touchmove'\n        ];\n        this.font = {\n            family: \"'Helvetica Neue', 'Helvetica', 'Arial', sans-serif\",\n            size: 12,\n            style: 'normal',\n            lineHeight: 1.2,\n            weight: null\n        };\n        this.hover = {};\n        this.hoverBackgroundColor = (ctx, options)=>getHoverColor(options.backgroundColor);\n        this.hoverBorderColor = (ctx, options)=>getHoverColor(options.borderColor);\n        this.hoverColor = (ctx, options)=>getHoverColor(options.color);\n        this.indexAxis = 'x';\n        this.interaction = {\n            mode: 'nearest',\n            intersect: true,\n            includeInvisible: false\n        };\n        this.maintainAspectRatio = true;\n        this.onHover = null;\n        this.onClick = null;\n        this.parsing = true;\n        this.plugins = {};\n        this.responsive = true;\n        this.scale = undefined;\n        this.scales = {};\n        this.showLine = true;\n        this.drawActiveElementsOnTop = true;\n        this.describe(_descriptors);\n        this.apply(_appliers);\n    }\n set(scope, values) {\n        return set(this, scope, values);\n    }\n get(scope) {\n        return getScope$1(this, scope);\n    }\n describe(scope, values) {\n        return set(descriptors, scope, values);\n    }\n    override(scope, values) {\n        return set(overrides, scope, values);\n    }\n route(scope, name, targetScope, targetName) {\n        const scopeObject = getScope$1(this, scope);\n        const targetScopeObject = getScope$1(this, targetScope);\n        const privateName = '_' + name;\n        Object.defineProperties(scopeObject, {\n            [privateName]: {\n                value: scopeObject[name],\n                writable: true\n            },\n            [name]: {\n                enumerable: true,\n                get () {\n                    const local = this[privateName];\n                    const target = targetScopeObject[targetName];\n                    if (isObject(local)) {\n                        return Object.assign({}, target, local);\n                    }\n                    return valueOrDefault(local, target);\n                },\n                set (value) {\n                    this[privateName] = value;\n                }\n            }\n        });\n    }\n    apply(appliers) {\n        appliers.forEach((apply)=>apply(this));\n    }\n}\nvar defaults = /* #__PURE__ */ new Defaults({\n    _scriptable: (name)=>!name.startsWith('on'),\n    _indexable: (name)=>name !== 'events',\n    hover: {\n        _fallback: 'interaction'\n    },\n    interaction: {\n        _scriptable: false,\n        _indexable: false\n    }\n}, [\n    applyAnimationsDefaults,\n    applyLayoutsDefaults,\n    applyScaleDefaults\n]);\n\n/**\n * Converts the given font object into a CSS font string.\n * @param font - A font object.\n * @return The CSS font string. See https://developer.mozilla.org/en-US/docs/Web/CSS/font\n * @private\n */ function toFontString(font) {\n    if (!font || isNullOrUndef(font.size) || isNullOrUndef(font.family)) {\n        return null;\n    }\n    return (font.style ? font.style + ' ' : '') + (font.weight ? font.weight + ' ' : '') + font.size + 'px ' + font.family;\n}\n/**\n * @private\n */ function _measureText(ctx, data, gc, longest, string) {\n    let textWidth = data[string];\n    if (!textWidth) {\n        textWidth = data[string] = ctx.measureText(string).width;\n        gc.push(string);\n    }\n    if (textWidth > longest) {\n        longest = textWidth;\n    }\n    return longest;\n}\n/**\n * @private\n */ // eslint-disable-next-line complexity\nfunction _longestText(ctx, font, arrayOfThings, cache) {\n    cache = cache || {};\n    let data = cache.data = cache.data || {};\n    let gc = cache.garbageCollect = cache.garbageCollect || [];\n    if (cache.font !== font) {\n        data = cache.data = {};\n        gc = cache.garbageCollect = [];\n        cache.font = font;\n    }\n    ctx.save();\n    ctx.font = font;\n    let longest = 0;\n    const ilen = arrayOfThings.length;\n    let i, j, jlen, thing, nestedThing;\n    for(i = 0; i < ilen; i++){\n        thing = arrayOfThings[i];\n        // Undefined strings and arrays should not be measured\n        if (thing !== undefined && thing !== null && !isArray(thing)) {\n            longest = _measureText(ctx, data, gc, longest, thing);\n        } else if (isArray(thing)) {\n            // if it is an array lets measure each element\n            // to do maybe simplify this function a bit so we can do this more recursively?\n            for(j = 0, jlen = thing.length; j < jlen; j++){\n                nestedThing = thing[j];\n                // Undefined strings and arrays should not be measured\n                if (nestedThing !== undefined && nestedThing !== null && !isArray(nestedThing)) {\n                    longest = _measureText(ctx, data, gc, longest, nestedThing);\n                }\n            }\n        }\n    }\n    ctx.restore();\n    const gcLen = gc.length / 2;\n    if (gcLen > arrayOfThings.length) {\n        for(i = 0; i < gcLen; i++){\n            delete data[gc[i]];\n        }\n        gc.splice(0, gcLen);\n    }\n    return longest;\n}\n/**\n * Returns the aligned pixel value to avoid anti-aliasing blur\n * @param chart - The chart instance.\n * @param pixel - A pixel value.\n * @param width - The width of the element.\n * @returns The aligned pixel value.\n * @private\n */ function _alignPixel(chart, pixel, width) {\n    const devicePixelRatio = chart.currentDevicePixelRatio;\n    const halfWidth = width !== 0 ? Math.max(width / 2, 0.5) : 0;\n    return Math.round((pixel - halfWidth) * devicePixelRatio) / devicePixelRatio + halfWidth;\n}\n/**\n * Clears the entire canvas.\n */ function clearCanvas(canvas, ctx) {\n    ctx = ctx || canvas.getContext('2d');\n    ctx.save();\n    // canvas.width and canvas.height do not consider the canvas transform,\n    // while clearRect does\n    ctx.resetTransform();\n    ctx.clearRect(0, 0, canvas.width, canvas.height);\n    ctx.restore();\n}\nfunction drawPoint(ctx, options, x, y) {\n    // eslint-disable-next-line @typescript-eslint/no-use-before-define\n    drawPointLegend(ctx, options, x, y, null);\n}\n// eslint-disable-next-line complexity\nfunction drawPointLegend(ctx, options, x, y, w) {\n    let type, xOffset, yOffset, size, cornerRadius, width, xOffsetW, yOffsetW;\n    const style = options.pointStyle;\n    const rotation = options.rotation;\n    const radius = options.radius;\n    let rad = (rotation || 0) * RAD_PER_DEG;\n    if (style && typeof style === 'object') {\n        type = style.toString();\n        if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') {\n            ctx.save();\n            ctx.translate(x, y);\n            ctx.rotate(rad);\n            ctx.drawImage(style, -style.width / 2, -style.height / 2, style.width, style.height);\n            ctx.restore();\n            return;\n        }\n    }\n    if (isNaN(radius) || radius <= 0) {\n        return;\n    }\n    ctx.beginPath();\n    switch(style){\n        // Default includes circle\n        default:\n            if (w) {\n                ctx.ellipse(x, y, w / 2, radius, 0, 0, TAU);\n            } else {\n                ctx.arc(x, y, radius, 0, TAU);\n            }\n            ctx.closePath();\n            break;\n        case 'triangle':\n            width = w ? w / 2 : radius;\n            ctx.moveTo(x + Math.sin(rad) * width, y - Math.cos(rad) * radius);\n            rad += TWO_THIRDS_PI;\n            ctx.lineTo(x + Math.sin(rad) * width, y - Math.cos(rad) * radius);\n            rad += TWO_THIRDS_PI;\n            ctx.lineTo(x + Math.sin(rad) * width, y - Math.cos(rad) * radius);\n            ctx.closePath();\n            break;\n        case 'rectRounded':\n            // NOTE: the rounded rect implementation changed to use `arc` instead of\n            // `quadraticCurveTo` since it generates better results when rect is\n            // almost a circle. 0.516 (instead of 0.5) produces results with visually\n            // closer proportion to the previous impl and it is inscribed in the\n            // circle with `radius`. For more details, see the following PRs:\n            // https://github.com/chartjs/Chart.js/issues/5597\n            // https://github.com/chartjs/Chart.js/issues/5858\n            cornerRadius = radius * 0.516;\n            size = radius - cornerRadius;\n            xOffset = Math.cos(rad + QUARTER_PI) * size;\n            xOffsetW = Math.cos(rad + QUARTER_PI) * (w ? w / 2 - cornerRadius : size);\n            yOffset = Math.sin(rad + QUARTER_PI) * size;\n            yOffsetW = Math.sin(rad + QUARTER_PI) * (w ? w / 2 - cornerRadius : size);\n            ctx.arc(x - xOffsetW, y - yOffset, cornerRadius, rad - PI, rad - HALF_PI);\n            ctx.arc(x + yOffsetW, y - xOffset, cornerRadius, rad - HALF_PI, rad);\n            ctx.arc(x + xOffsetW, y + yOffset, cornerRadius, rad, rad + HALF_PI);\n            ctx.arc(x - yOffsetW, y + xOffset, cornerRadius, rad + HALF_PI, rad + PI);\n            ctx.closePath();\n            break;\n        case 'rect':\n            if (!rotation) {\n                size = Math.SQRT1_2 * radius;\n                width = w ? w / 2 : size;\n                ctx.rect(x - width, y - size, 2 * width, 2 * size);\n                break;\n            }\n            rad += QUARTER_PI;\n        /* falls through */ case 'rectRot':\n            xOffsetW = Math.cos(rad) * (w ? w / 2 : radius);\n            xOffset = Math.cos(rad) * radius;\n            yOffset = Math.sin(rad) * radius;\n            yOffsetW = Math.sin(rad) * (w ? w / 2 : radius);\n            ctx.moveTo(x - xOffsetW, y - yOffset);\n            ctx.lineTo(x + yOffsetW, y - xOffset);\n            ctx.lineTo(x + xOffsetW, y + yOffset);\n            ctx.lineTo(x - yOffsetW, y + xOffset);\n            ctx.closePath();\n            break;\n        case 'crossRot':\n            rad += QUARTER_PI;\n        /* falls through */ case 'cross':\n            xOffsetW = Math.cos(rad) * (w ? w / 2 : radius);\n            xOffset = Math.cos(rad) * radius;\n            yOffset = Math.sin(rad) * radius;\n            yOffsetW = Math.sin(rad) * (w ? w / 2 : radius);\n            ctx.moveTo(x - xOffsetW, y - yOffset);\n            ctx.lineTo(x + xOffsetW, y + yOffset);\n            ctx.moveTo(x + yOffsetW, y - xOffset);\n            ctx.lineTo(x - yOffsetW, y + xOffset);\n            break;\n        case 'star':\n            xOffsetW = Math.cos(rad) * (w ? w / 2 : radius);\n            xOffset = Math.cos(rad) * radius;\n            yOffset = Math.sin(rad) * radius;\n            yOffsetW = Math.sin(rad) * (w ? w / 2 : radius);\n            ctx.moveTo(x - xOffsetW, y - yOffset);\n            ctx.lineTo(x + xOffsetW, y + yOffset);\n            ctx.moveTo(x + yOffsetW, y - xOffset);\n            ctx.lineTo(x - yOffsetW, y + xOffset);\n            rad += QUARTER_PI;\n            xOffsetW = Math.cos(rad) * (w ? w / 2 : radius);\n            xOffset = Math.cos(rad) * radius;\n            yOffset = Math.sin(rad) * radius;\n            yOffsetW = Math.sin(rad) * (w ? w / 2 : radius);\n            ctx.moveTo(x - xOffsetW, y - yOffset);\n            ctx.lineTo(x + xOffsetW, y + yOffset);\n            ctx.moveTo(x + yOffsetW, y - xOffset);\n            ctx.lineTo(x - yOffsetW, y + xOffset);\n            break;\n        case 'line':\n            xOffset = w ? w / 2 : Math.cos(rad) * radius;\n            yOffset = Math.sin(rad) * radius;\n            ctx.moveTo(x - xOffset, y - yOffset);\n            ctx.lineTo(x + xOffset, y + yOffset);\n            break;\n        case 'dash':\n            ctx.moveTo(x, y);\n            ctx.lineTo(x + Math.cos(rad) * (w ? w / 2 : radius), y + Math.sin(rad) * radius);\n            break;\n        case false:\n            ctx.closePath();\n            break;\n    }\n    ctx.fill();\n    if (options.borderWidth > 0) {\n        ctx.stroke();\n    }\n}\n/**\n * Returns true if the point is inside the rectangle\n * @param point - The point to test\n * @param area - The rectangle\n * @param margin - allowed margin\n * @private\n */ function _isPointInArea(point, area, margin) {\n    margin = margin || 0.5; // margin - default is to match rounded decimals\n    return !area || point && point.x > area.left - margin && point.x < area.right + margin && point.y > area.top - margin && point.y < area.bottom + margin;\n}\nfunction clipArea(ctx, area) {\n    ctx.save();\n    ctx.beginPath();\n    ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top);\n    ctx.clip();\n}\nfunction unclipArea(ctx) {\n    ctx.restore();\n}\n/**\n * @private\n */ function _steppedLineTo(ctx, previous, target, flip, mode) {\n    if (!previous) {\n        return ctx.lineTo(target.x, target.y);\n    }\n    if (mode === 'middle') {\n        const midpoint = (previous.x + target.x) / 2.0;\n        ctx.lineTo(midpoint, previous.y);\n        ctx.lineTo(midpoint, target.y);\n    } else if (mode === 'after' !== !!flip) {\n        ctx.lineTo(previous.x, target.y);\n    } else {\n        ctx.lineTo(target.x, previous.y);\n    }\n    ctx.lineTo(target.x, target.y);\n}\n/**\n * @private\n */ function _bezierCurveTo(ctx, previous, target, flip) {\n    if (!previous) {\n        return ctx.lineTo(target.x, target.y);\n    }\n    ctx.bezierCurveTo(flip ? previous.cp1x : previous.cp2x, flip ? previous.cp1y : previous.cp2y, flip ? target.cp2x : target.cp1x, flip ? target.cp2y : target.cp1y, target.x, target.y);\n}\nfunction setRenderOpts(ctx, opts) {\n    if (opts.translation) {\n        ctx.translate(opts.translation[0], opts.translation[1]);\n    }\n    if (!isNullOrUndef(opts.rotation)) {\n        ctx.rotate(opts.rotation);\n    }\n    if (opts.color) {\n        ctx.fillStyle = opts.color;\n    }\n    if (opts.textAlign) {\n        ctx.textAlign = opts.textAlign;\n    }\n    if (opts.textBaseline) {\n        ctx.textBaseline = opts.textBaseline;\n    }\n}\nfunction decorateText(ctx, x, y, line, opts) {\n    if (opts.strikethrough || opts.underline) {\n        /**\n     * Now that IE11 support has been dropped, we can use more\n     * of the TextMetrics object. The actual bounding boxes\n     * are unflagged in Chrome, Firefox, Edge, and Safari so they\n     * can be safely used.\n     * See https://developer.mozilla.org/en-US/docs/Web/API/TextMetrics#Browser_compatibility\n     */ const metrics = ctx.measureText(line);\n        const left = x - metrics.actualBoundingBoxLeft;\n        const right = x + metrics.actualBoundingBoxRight;\n        const top = y - metrics.actualBoundingBoxAscent;\n        const bottom = y + metrics.actualBoundingBoxDescent;\n        const yDecoration = opts.strikethrough ? (top + bottom) / 2 : bottom;\n        ctx.strokeStyle = ctx.fillStyle;\n        ctx.beginPath();\n        ctx.lineWidth = opts.decorationWidth || 2;\n        ctx.moveTo(left, yDecoration);\n        ctx.lineTo(right, yDecoration);\n        ctx.stroke();\n    }\n}\nfunction drawBackdrop(ctx, opts) {\n    const oldColor = ctx.fillStyle;\n    ctx.fillStyle = opts.color;\n    ctx.fillRect(opts.left, opts.top, opts.width, opts.height);\n    ctx.fillStyle = oldColor;\n}\n/**\n * Render text onto the canvas\n */ function renderText(ctx, text, x, y, font, opts = {}) {\n    const lines = isArray(text) ? text : [\n        text\n    ];\n    const stroke = opts.strokeWidth > 0 && opts.strokeColor !== '';\n    let i, line;\n    ctx.save();\n    ctx.font = font.string;\n    setRenderOpts(ctx, opts);\n    for(i = 0; i < lines.length; ++i){\n        line = lines[i];\n        if (opts.backdrop) {\n            drawBackdrop(ctx, opts.backdrop);\n        }\n        if (stroke) {\n            if (opts.strokeColor) {\n                ctx.strokeStyle = opts.strokeColor;\n            }\n            if (!isNullOrUndef(opts.strokeWidth)) {\n                ctx.lineWidth = opts.strokeWidth;\n            }\n            ctx.strokeText(line, x, y, opts.maxWidth);\n        }\n        ctx.fillText(line, x, y, opts.maxWidth);\n        decorateText(ctx, x, y, line, opts);\n        y += Number(font.lineHeight);\n    }\n    ctx.restore();\n}\n/**\n * Add a path of a rectangle with rounded corners to the current sub-path\n * @param ctx - Context\n * @param rect - Bounding rect\n */ function addRoundedRectPath(ctx, rect) {\n    const { x , y , w , h , radius  } = rect;\n    // top left arc\n    ctx.arc(x + radius.topLeft, y + radius.topLeft, radius.topLeft, -HALF_PI, PI, true);\n    // line from top left to bottom left\n    ctx.lineTo(x, y + h - radius.bottomLeft);\n    // bottom left arc\n    ctx.arc(x + radius.bottomLeft, y + h - radius.bottomLeft, radius.bottomLeft, PI, HALF_PI, true);\n    // line from bottom left to bottom right\n    ctx.lineTo(x + w - radius.bottomRight, y + h);\n    // bottom right arc\n    ctx.arc(x + w - radius.bottomRight, y + h - radius.bottomRight, radius.bottomRight, HALF_PI, 0, true);\n    // line from bottom right to top right\n    ctx.lineTo(x + w, y + radius.topRight);\n    // top right arc\n    ctx.arc(x + w - radius.topRight, y + radius.topRight, radius.topRight, 0, -HALF_PI, true);\n    // line from top right to top left\n    ctx.lineTo(x + radius.topLeft, y);\n}\n\nconst LINE_HEIGHT = /^(normal|(\\d+(?:\\.\\d+)?)(px|em|%)?)$/;\nconst FONT_STYLE = /^(normal|italic|initial|inherit|unset|(oblique( -?[0-9]?[0-9]deg)?))$/;\n/**\n * @alias Chart.helpers.options\n * @namespace\n */ /**\n * Converts the given line height `value` in pixels for a specific font `size`.\n * @param value - The lineHeight to parse (eg. 1.6, '14px', '75%', '1.6em').\n * @param size - The font size (in pixels) used to resolve relative `value`.\n * @returns The effective line height in pixels (size * 1.2 if value is invalid).\n * @see https://developer.mozilla.org/en-US/docs/Web/CSS/line-height\n * @since 2.7.0\n */ function toLineHeight(value, size) {\n    const matches = ('' + value).match(LINE_HEIGHT);\n    if (!matches || matches[1] === 'normal') {\n        return size * 1.2;\n    }\n    value = +matches[2];\n    switch(matches[3]){\n        case 'px':\n            return value;\n        case '%':\n            value /= 100;\n            break;\n    }\n    return size * value;\n}\nconst numberOrZero = (v)=>+v || 0;\nfunction _readValueToProps(value, props) {\n    const ret = {};\n    const objProps = isObject(props);\n    const keys = objProps ? Object.keys(props) : props;\n    const read = isObject(value) ? objProps ? (prop)=>valueOrDefault(value[prop], value[props[prop]]) : (prop)=>value[prop] : ()=>value;\n    for (const prop of keys){\n        ret[prop] = numberOrZero(read(prop));\n    }\n    return ret;\n}\n/**\n * Converts the given value into a TRBL object.\n * @param value - If a number, set the value to all TRBL component,\n *  else, if an object, use defined properties and sets undefined ones to 0.\n *  x / y are shorthands for same value for left/right and top/bottom.\n * @returns The padding values (top, right, bottom, left)\n * @since 3.0.0\n */ function toTRBL(value) {\n    return _readValueToProps(value, {\n        top: 'y',\n        right: 'x',\n        bottom: 'y',\n        left: 'x'\n    });\n}\n/**\n * Converts the given value into a TRBL corners object (similar with css border-radius).\n * @param value - If a number, set the value to all TRBL corner components,\n *  else, if an object, use defined properties and sets undefined ones to 0.\n * @returns The TRBL corner values (topLeft, topRight, bottomLeft, bottomRight)\n * @since 3.0.0\n */ function toTRBLCorners(value) {\n    return _readValueToProps(value, [\n        'topLeft',\n        'topRight',\n        'bottomLeft',\n        'bottomRight'\n    ]);\n}\n/**\n * Converts the given value into a padding object with pre-computed width/height.\n * @param value - If a number, set the value to all TRBL component,\n *  else, if an object, use defined properties and sets undefined ones to 0.\n *  x / y are shorthands for same value for left/right and top/bottom.\n * @returns The padding values (top, right, bottom, left, width, height)\n * @since 2.7.0\n */ function toPadding(value) {\n    const obj = toTRBL(value);\n    obj.width = obj.left + obj.right;\n    obj.height = obj.top + obj.bottom;\n    return obj;\n}\n/**\n * Parses font options and returns the font object.\n * @param options - A object that contains font options to be parsed.\n * @param fallback - A object that contains fallback font options.\n * @return The font object.\n * @private\n */ function toFont(options, fallback) {\n    options = options || {};\n    fallback = fallback || defaults.font;\n    let size = valueOrDefault(options.size, fallback.size);\n    if (typeof size === 'string') {\n        size = parseInt(size, 10);\n    }\n    let style = valueOrDefault(options.style, fallback.style);\n    if (style && !('' + style).match(FONT_STYLE)) {\n        console.warn('Invalid font style specified: \"' + style + '\"');\n        style = undefined;\n    }\n    const font = {\n        family: valueOrDefault(options.family, fallback.family),\n        lineHeight: toLineHeight(valueOrDefault(options.lineHeight, fallback.lineHeight), size),\n        size,\n        style,\n        weight: valueOrDefault(options.weight, fallback.weight),\n        string: ''\n    };\n    font.string = toFontString(font);\n    return font;\n}\n/**\n * Evaluates the given `inputs` sequentially and returns the first defined value.\n * @param inputs - An array of values, falling back to the last value.\n * @param context - If defined and the current value is a function, the value\n * is called with `context` as first argument and the result becomes the new input.\n * @param index - If defined and the current value is an array, the value\n * at `index` become the new input.\n * @param info - object to return information about resolution in\n * @param info.cacheable - Will be set to `false` if option is not cacheable.\n * @since 2.7.0\n */ function resolve(inputs, context, index, info) {\n    let cacheable = true;\n    let i, ilen, value;\n    for(i = 0, ilen = inputs.length; i < ilen; ++i){\n        value = inputs[i];\n        if (value === undefined) {\n            continue;\n        }\n        if (context !== undefined && typeof value === 'function') {\n            value = value(context);\n            cacheable = false;\n        }\n        if (index !== undefined && isArray(value)) {\n            value = value[index % value.length];\n            cacheable = false;\n        }\n        if (value !== undefined) {\n            if (info && !cacheable) {\n                info.cacheable = false;\n            }\n            return value;\n        }\n    }\n}\n/**\n * @param minmax\n * @param grace\n * @param beginAtZero\n * @private\n */ function _addGrace(minmax, grace, beginAtZero) {\n    const { min , max  } = minmax;\n    const change = toDimension(grace, (max - min) / 2);\n    const keepZero = (value, add)=>beginAtZero && value === 0 ? 0 : value + add;\n    return {\n        min: keepZero(min, -Math.abs(change)),\n        max: keepZero(max, change)\n    };\n}\nfunction createContext(parentContext, context) {\n    return Object.assign(Object.create(parentContext), context);\n}\n\n/**\n * Creates a Proxy for resolving raw values for options.\n * @param scopes - The option scopes to look for values, in resolution order\n * @param prefixes - The prefixes for values, in resolution order.\n * @param rootScopes - The root option scopes\n * @param fallback - Parent scopes fallback\n * @param getTarget - callback for getting the target for changed values\n * @returns Proxy\n * @private\n */ function _createResolver(scopes, prefixes = [\n    ''\n], rootScopes, fallback, getTarget = ()=>scopes[0]) {\n    const finalRootScopes = rootScopes || scopes;\n    if (typeof fallback === 'undefined') {\n        fallback = _resolve('_fallback', scopes);\n    }\n    const cache = {\n        [Symbol.toStringTag]: 'Object',\n        _cacheable: true,\n        _scopes: scopes,\n        _rootScopes: finalRootScopes,\n        _fallback: fallback,\n        _getTarget: getTarget,\n        override: (scope)=>_createResolver([\n                scope,\n                ...scopes\n            ], prefixes, finalRootScopes, fallback)\n    };\n    return new Proxy(cache, {\n        /**\n     * A trap for the delete operator.\n     */ deleteProperty (target, prop) {\n            delete target[prop]; // remove from cache\n            delete target._keys; // remove cached keys\n            delete scopes[0][prop]; // remove from top level scope\n            return true;\n        },\n        /**\n     * A trap for getting property values.\n     */ get (target, prop) {\n            return _cached(target, prop, ()=>_resolveWithPrefixes(prop, prefixes, scopes, target));\n        },\n        /**\n     * A trap for Object.getOwnPropertyDescriptor.\n     * Also used by Object.hasOwnProperty.\n     */ getOwnPropertyDescriptor (target, prop) {\n            return Reflect.getOwnPropertyDescriptor(target._scopes[0], prop);\n        },\n        /**\n     * A trap for Object.getPrototypeOf.\n     */ getPrototypeOf () {\n            return Reflect.getPrototypeOf(scopes[0]);\n        },\n        /**\n     * A trap for the in operator.\n     */ has (target, prop) {\n            return getKeysFromAllScopes(target).includes(prop);\n        },\n        /**\n     * A trap for Object.getOwnPropertyNames and Object.getOwnPropertySymbols.\n     */ ownKeys (target) {\n            return getKeysFromAllScopes(target);\n        },\n        /**\n     * A trap for setting property values.\n     */ set (target, prop, value) {\n            const storage = target._storage || (target._storage = getTarget());\n            target[prop] = storage[prop] = value; // set to top level scope + cache\n            delete target._keys; // remove cached keys\n            return true;\n        }\n    });\n}\n/**\n * Returns an Proxy for resolving option values with context.\n * @param proxy - The Proxy returned by `_createResolver`\n * @param context - Context object for scriptable/indexable options\n * @param subProxy - The proxy provided for scriptable options\n * @param descriptorDefaults - Defaults for descriptors\n * @private\n */ function _attachContext(proxy, context, subProxy, descriptorDefaults) {\n    const cache = {\n        _cacheable: false,\n        _proxy: proxy,\n        _context: context,\n        _subProxy: subProxy,\n        _stack: new Set(),\n        _descriptors: _descriptors(proxy, descriptorDefaults),\n        setContext: (ctx)=>_attachContext(proxy, ctx, subProxy, descriptorDefaults),\n        override: (scope)=>_attachContext(proxy.override(scope), context, subProxy, descriptorDefaults)\n    };\n    return new Proxy(cache, {\n        /**\n     * A trap for the delete operator.\n     */ deleteProperty (target, prop) {\n            delete target[prop]; // remove from cache\n            delete proxy[prop]; // remove from proxy\n            return true;\n        },\n        /**\n     * A trap for getting property values.\n     */ get (target, prop, receiver) {\n            return _cached(target, prop, ()=>_resolveWithContext(target, prop, receiver));\n        },\n        /**\n     * A trap for Object.getOwnPropertyDescriptor.\n     * Also used by Object.hasOwnProperty.\n     */ getOwnPropertyDescriptor (target, prop) {\n            return target._descriptors.allKeys ? Reflect.has(proxy, prop) ? {\n                enumerable: true,\n                configurable: true\n            } : undefined : Reflect.getOwnPropertyDescriptor(proxy, prop);\n        },\n        /**\n     * A trap for Object.getPrototypeOf.\n     */ getPrototypeOf () {\n            return Reflect.getPrototypeOf(proxy);\n        },\n        /**\n     * A trap for the in operator.\n     */ has (target, prop) {\n            return Reflect.has(proxy, prop);\n        },\n        /**\n     * A trap for Object.getOwnPropertyNames and Object.getOwnPropertySymbols.\n     */ ownKeys () {\n            return Reflect.ownKeys(proxy);\n        },\n        /**\n     * A trap for setting property values.\n     */ set (target, prop, value) {\n            proxy[prop] = value; // set to proxy\n            delete target[prop]; // remove from cache\n            return true;\n        }\n    });\n}\n/**\n * @private\n */ function _descriptors(proxy, defaults = {\n    scriptable: true,\n    indexable: true\n}) {\n    const { _scriptable =defaults.scriptable , _indexable =defaults.indexable , _allKeys =defaults.allKeys  } = proxy;\n    return {\n        allKeys: _allKeys,\n        scriptable: _scriptable,\n        indexable: _indexable,\n        isScriptable: isFunction(_scriptable) ? _scriptable : ()=>_scriptable,\n        isIndexable: isFunction(_indexable) ? _indexable : ()=>_indexable\n    };\n}\nconst readKey = (prefix, name)=>prefix ? prefix + _capitalize(name) : name;\nconst needsSubResolver = (prop, value)=>isObject(value) && prop !== 'adapters' && (Object.getPrototypeOf(value) === null || value.constructor === Object);\nfunction _cached(target, prop, resolve) {\n    if (Object.prototype.hasOwnProperty.call(target, prop)) {\n        return target[prop];\n    }\n    const value = resolve();\n    // cache the resolved value\n    target[prop] = value;\n    return value;\n}\nfunction _resolveWithContext(target, prop, receiver) {\n    const { _proxy , _context , _subProxy , _descriptors: descriptors  } = target;\n    let value = _proxy[prop]; // resolve from proxy\n    // resolve with context\n    if (isFunction(value) && descriptors.isScriptable(prop)) {\n        value = _resolveScriptable(prop, value, target, receiver);\n    }\n    if (isArray(value) && value.length) {\n        value = _resolveArray(prop, value, target, descriptors.isIndexable);\n    }\n    if (needsSubResolver(prop, value)) {\n        // if the resolved value is an object, create a sub resolver for it\n        value = _attachContext(value, _context, _subProxy && _subProxy[prop], descriptors);\n    }\n    return value;\n}\nfunction _resolveScriptable(prop, getValue, target, receiver) {\n    const { _proxy , _context , _subProxy , _stack  } = target;\n    if (_stack.has(prop)) {\n        throw new Error('Recursion detected: ' + Array.from(_stack).join('->') + '->' + prop);\n    }\n    _stack.add(prop);\n    let value = getValue(_context, _subProxy || receiver);\n    _stack.delete(prop);\n    if (needsSubResolver(prop, value)) {\n        // When scriptable option returns an object, create a resolver on that.\n        value = createSubResolver(_proxy._scopes, _proxy, prop, value);\n    }\n    return value;\n}\nfunction _resolveArray(prop, value, target, isIndexable) {\n    const { _proxy , _context , _subProxy , _descriptors: descriptors  } = target;\n    if (typeof _context.index !== 'undefined' && isIndexable(prop)) {\n        return value[_context.index % value.length];\n    } else if (isObject(value[0])) {\n        // Array of objects, return array or resolvers\n        const arr = value;\n        const scopes = _proxy._scopes.filter((s)=>s !== arr);\n        value = [];\n        for (const item of arr){\n            const resolver = createSubResolver(scopes, _proxy, prop, item);\n            value.push(_attachContext(resolver, _context, _subProxy && _subProxy[prop], descriptors));\n        }\n    }\n    return value;\n}\nfunction resolveFallback(fallback, prop, value) {\n    return isFunction(fallback) ? fallback(prop, value) : fallback;\n}\nconst getScope = (key, parent)=>key === true ? parent : typeof key === 'string' ? resolveObjectKey(parent, key) : undefined;\nfunction addScopes(set, parentScopes, key, parentFallback, value) {\n    for (const parent of parentScopes){\n        const scope = getScope(key, parent);\n        if (scope) {\n            set.add(scope);\n            const fallback = resolveFallback(scope._fallback, key, value);\n            if (typeof fallback !== 'undefined' && fallback !== key && fallback !== parentFallback) {\n                // When we reach the descriptor that defines a new _fallback, return that.\n                // The fallback will resume to that new scope.\n                return fallback;\n            }\n        } else if (scope === false && typeof parentFallback !== 'undefined' && key !== parentFallback) {\n            // Fallback to `false` results to `false`, when falling back to different key.\n            // For example `interaction` from `hover` or `plugins.tooltip` and `animation` from `animations`\n            return null;\n        }\n    }\n    return false;\n}\nfunction createSubResolver(parentScopes, resolver, prop, value) {\n    const rootScopes = resolver._rootScopes;\n    const fallback = resolveFallback(resolver._fallback, prop, value);\n    const allScopes = [\n        ...parentScopes,\n        ...rootScopes\n    ];\n    const set = new Set();\n    set.add(value);\n    let key = addScopesFromKey(set, allScopes, prop, fallback || prop, value);\n    if (key === null) {\n        return false;\n    }\n    if (typeof fallback !== 'undefined' && fallback !== prop) {\n        key = addScopesFromKey(set, allScopes, fallback, key, value);\n        if (key === null) {\n            return false;\n        }\n    }\n    return _createResolver(Array.from(set), [\n        ''\n    ], rootScopes, fallback, ()=>subGetTarget(resolver, prop, value));\n}\nfunction addScopesFromKey(set, allScopes, key, fallback, item) {\n    while(key){\n        key = addScopes(set, allScopes, key, fallback, item);\n    }\n    return key;\n}\nfunction subGetTarget(resolver, prop, value) {\n    const parent = resolver._getTarget();\n    if (!(prop in parent)) {\n        parent[prop] = {};\n    }\n    const target = parent[prop];\n    if (isArray(target) && isObject(value)) {\n        // For array of objects, the object is used to store updated values\n        return value;\n    }\n    return target || {};\n}\nfunction _resolveWithPrefixes(prop, prefixes, scopes, proxy) {\n    let value;\n    for (const prefix of prefixes){\n        value = _resolve(readKey(prefix, prop), scopes);\n        if (typeof value !== 'undefined') {\n            return needsSubResolver(prop, value) ? createSubResolver(scopes, proxy, prop, value) : value;\n        }\n    }\n}\nfunction _resolve(key, scopes) {\n    for (const scope of scopes){\n        if (!scope) {\n            continue;\n        }\n        const value = scope[key];\n        if (typeof value !== 'undefined') {\n            return value;\n        }\n    }\n}\nfunction getKeysFromAllScopes(target) {\n    let keys = target._keys;\n    if (!keys) {\n        keys = target._keys = resolveKeysFromAllScopes(target._scopes);\n    }\n    return keys;\n}\nfunction resolveKeysFromAllScopes(scopes) {\n    const set = new Set();\n    for (const scope of scopes){\n        for (const key of Object.keys(scope).filter((k)=>!k.startsWith('_'))){\n            set.add(key);\n        }\n    }\n    return Array.from(set);\n}\nfunction _parseObjectDataRadialScale(meta, data, start, count) {\n    const { iScale  } = meta;\n    const { key ='r'  } = this._parsing;\n    const parsed = new Array(count);\n    let i, ilen, index, item;\n    for(i = 0, ilen = count; i < ilen; ++i){\n        index = i + start;\n        item = data[index];\n        parsed[i] = {\n            r: iScale.parse(resolveObjectKey(item, key), index)\n        };\n    }\n    return parsed;\n}\n\nconst EPSILON = Number.EPSILON || 1e-14;\nconst getPoint = (points, i)=>i < points.length && !points[i].skip && points[i];\nconst getValueAxis = (indexAxis)=>indexAxis === 'x' ? 'y' : 'x';\nfunction splineCurve(firstPoint, middlePoint, afterPoint, t) {\n    // Props to Rob Spencer at scaled innovation for his post on splining between points\n    // http://scaledinnovation.com/analytics/splines/aboutSplines.html\n    // This function must also respect \"skipped\" points\n    const previous = firstPoint.skip ? middlePoint : firstPoint;\n    const current = middlePoint;\n    const next = afterPoint.skip ? middlePoint : afterPoint;\n    const d01 = distanceBetweenPoints(current, previous);\n    const d12 = distanceBetweenPoints(next, current);\n    let s01 = d01 / (d01 + d12);\n    let s12 = d12 / (d01 + d12);\n    // If all points are the same, s01 & s02 will be inf\n    s01 = isNaN(s01) ? 0 : s01;\n    s12 = isNaN(s12) ? 0 : s12;\n    const fa = t * s01; // scaling factor for triangle Ta\n    const fb = t * s12;\n    return {\n        previous: {\n            x: current.x - fa * (next.x - previous.x),\n            y: current.y - fa * (next.y - previous.y)\n        },\n        next: {\n            x: current.x + fb * (next.x - previous.x),\n            y: current.y + fb * (next.y - previous.y)\n        }\n    };\n}\n/**\n * Adjust tangents to ensure monotonic properties\n */ function monotoneAdjust(points, deltaK, mK) {\n    const pointsLen = points.length;\n    let alphaK, betaK, tauK, squaredMagnitude, pointCurrent;\n    let pointAfter = getPoint(points, 0);\n    for(let i = 0; i < pointsLen - 1; ++i){\n        pointCurrent = pointAfter;\n        pointAfter = getPoint(points, i + 1);\n        if (!pointCurrent || !pointAfter) {\n            continue;\n        }\n        if (almostEquals(deltaK[i], 0, EPSILON)) {\n            mK[i] = mK[i + 1] = 0;\n            continue;\n        }\n        alphaK = mK[i] / deltaK[i];\n        betaK = mK[i + 1] / deltaK[i];\n        squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2);\n        if (squaredMagnitude <= 9) {\n            continue;\n        }\n        tauK = 3 / Math.sqrt(squaredMagnitude);\n        mK[i] = alphaK * tauK * deltaK[i];\n        mK[i + 1] = betaK * tauK * deltaK[i];\n    }\n}\nfunction monotoneCompute(points, mK, indexAxis = 'x') {\n    const valueAxis = getValueAxis(indexAxis);\n    const pointsLen = points.length;\n    let delta, pointBefore, pointCurrent;\n    let pointAfter = getPoint(points, 0);\n    for(let i = 0; i < pointsLen; ++i){\n        pointBefore = pointCurrent;\n        pointCurrent = pointAfter;\n        pointAfter = getPoint(points, i + 1);\n        if (!pointCurrent) {\n            continue;\n        }\n        const iPixel = pointCurrent[indexAxis];\n        const vPixel = pointCurrent[valueAxis];\n        if (pointBefore) {\n            delta = (iPixel - pointBefore[indexAxis]) / 3;\n            pointCurrent[`cp1${indexAxis}`] = iPixel - delta;\n            pointCurrent[`cp1${valueAxis}`] = vPixel - delta * mK[i];\n        }\n        if (pointAfter) {\n            delta = (pointAfter[indexAxis] - iPixel) / 3;\n            pointCurrent[`cp2${indexAxis}`] = iPixel + delta;\n            pointCurrent[`cp2${valueAxis}`] = vPixel + delta * mK[i];\n        }\n    }\n}\n/**\n * This function calculates Bézier control points in a similar way than |splineCurve|,\n * but preserves monotonicity of the provided data and ensures no local extremums are added\n * between the dataset discrete points due to the interpolation.\n * See : https://en.wikipedia.org/wiki/Monotone_cubic_interpolation\n */ function splineCurveMonotone(points, indexAxis = 'x') {\n    const valueAxis = getValueAxis(indexAxis);\n    const pointsLen = points.length;\n    const deltaK = Array(pointsLen).fill(0);\n    const mK = Array(pointsLen);\n    // Calculate slopes (deltaK) and initialize tangents (mK)\n    let i, pointBefore, pointCurrent;\n    let pointAfter = getPoint(points, 0);\n    for(i = 0; i < pointsLen; ++i){\n        pointBefore = pointCurrent;\n        pointCurrent = pointAfter;\n        pointAfter = getPoint(points, i + 1);\n        if (!pointCurrent) {\n            continue;\n        }\n        if (pointAfter) {\n            const slopeDelta = pointAfter[indexAxis] - pointCurrent[indexAxis];\n            // In the case of two points that appear at the same x pixel, slopeDeltaX is 0\n            deltaK[i] = slopeDelta !== 0 ? (pointAfter[valueAxis] - pointCurrent[valueAxis]) / slopeDelta : 0;\n        }\n        mK[i] = !pointBefore ? deltaK[i] : !pointAfter ? deltaK[i - 1] : sign(deltaK[i - 1]) !== sign(deltaK[i]) ? 0 : (deltaK[i - 1] + deltaK[i]) / 2;\n    }\n    monotoneAdjust(points, deltaK, mK);\n    monotoneCompute(points, mK, indexAxis);\n}\nfunction capControlPoint(pt, min, max) {\n    return Math.max(Math.min(pt, max), min);\n}\nfunction capBezierPoints(points, area) {\n    let i, ilen, point, inArea, inAreaPrev;\n    let inAreaNext = _isPointInArea(points[0], area);\n    for(i = 0, ilen = points.length; i < ilen; ++i){\n        inAreaPrev = inArea;\n        inArea = inAreaNext;\n        inAreaNext = i < ilen - 1 && _isPointInArea(points[i + 1], area);\n        if (!inArea) {\n            continue;\n        }\n        point = points[i];\n        if (inAreaPrev) {\n            point.cp1x = capControlPoint(point.cp1x, area.left, area.right);\n            point.cp1y = capControlPoint(point.cp1y, area.top, area.bottom);\n        }\n        if (inAreaNext) {\n            point.cp2x = capControlPoint(point.cp2x, area.left, area.right);\n            point.cp2y = capControlPoint(point.cp2y, area.top, area.bottom);\n        }\n    }\n}\n/**\n * @private\n */ function _updateBezierControlPoints(points, options, area, loop, indexAxis) {\n    let i, ilen, point, controlPoints;\n    // Only consider points that are drawn in case the spanGaps option is used\n    if (options.spanGaps) {\n        points = points.filter((pt)=>!pt.skip);\n    }\n    if (options.cubicInterpolationMode === 'monotone') {\n        splineCurveMonotone(points, indexAxis);\n    } else {\n        let prev = loop ? points[points.length - 1] : points[0];\n        for(i = 0, ilen = points.length; i < ilen; ++i){\n            point = points[i];\n            controlPoints = splineCurve(prev, point, points[Math.min(i + 1, ilen - (loop ? 0 : 1)) % ilen], options.tension);\n            point.cp1x = controlPoints.previous.x;\n            point.cp1y = controlPoints.previous.y;\n            point.cp2x = controlPoints.next.x;\n            point.cp2y = controlPoints.next.y;\n            prev = point;\n        }\n    }\n    if (options.capBezierPoints) {\n        capBezierPoints(points, area);\n    }\n}\n\n/**\n * Note: typedefs are auto-exported, so use a made-up `dom` namespace where\n * necessary to avoid duplicates with `export * from './helpers`; see\n * https://github.com/microsoft/TypeScript/issues/46011\n * @typedef { import('../core/core.controller.js').default } dom.Chart\n * @typedef { import('../../types').ChartEvent } ChartEvent\n */ /**\n * @private\n */ function _isDomSupported() {\n    return typeof window !== 'undefined' && typeof document !== 'undefined';\n}\n/**\n * @private\n */ function _getParentNode(domNode) {\n    let parent = domNode.parentNode;\n    if (parent && parent.toString() === '[object ShadowRoot]') {\n        parent = parent.host;\n    }\n    return parent;\n}\n/**\n * convert max-width/max-height values that may be percentages into a number\n * @private\n */ function parseMaxStyle(styleValue, node, parentProperty) {\n    let valueInPixels;\n    if (typeof styleValue === 'string') {\n        valueInPixels = parseInt(styleValue, 10);\n        if (styleValue.indexOf('%') !== -1) {\n            // percentage * size in dimension\n            valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty];\n        }\n    } else {\n        valueInPixels = styleValue;\n    }\n    return valueInPixels;\n}\nconst getComputedStyle = (element)=>element.ownerDocument.defaultView.getComputedStyle(element, null);\nfunction getStyle(el, property) {\n    return getComputedStyle(el).getPropertyValue(property);\n}\nconst positions = [\n    'top',\n    'right',\n    'bottom',\n    'left'\n];\nfunction getPositionedStyle(styles, style, suffix) {\n    const result = {};\n    suffix = suffix ? '-' + suffix : '';\n    for(let i = 0; i < 4; i++){\n        const pos = positions[i];\n        result[pos] = parseFloat(styles[style + '-' + pos + suffix]) || 0;\n    }\n    result.width = result.left + result.right;\n    result.height = result.top + result.bottom;\n    return result;\n}\nconst useOffsetPos = (x, y, target)=>(x > 0 || y > 0) && (!target || !target.shadowRoot);\n/**\n * @param e\n * @param canvas\n * @returns Canvas position\n */ function getCanvasPosition(e, canvas) {\n    const touches = e.touches;\n    const source = touches && touches.length ? touches[0] : e;\n    const { offsetX , offsetY  } = source;\n    let box = false;\n    let x, y;\n    if (useOffsetPos(offsetX, offsetY, e.target)) {\n        x = offsetX;\n        y = offsetY;\n    } else {\n        const rect = canvas.getBoundingClientRect();\n        x = source.clientX - rect.left;\n        y = source.clientY - rect.top;\n        box = true;\n    }\n    return {\n        x,\n        y,\n        box\n    };\n}\n/**\n * Gets an event's x, y coordinates, relative to the chart area\n * @param event\n * @param chart\n * @returns x and y coordinates of the event\n */ function getRelativePosition(event, chart) {\n    if ('native' in event) {\n        return event;\n    }\n    const { canvas , currentDevicePixelRatio  } = chart;\n    const style = getComputedStyle(canvas);\n    const borderBox = style.boxSizing === 'border-box';\n    const paddings = getPositionedStyle(style, 'padding');\n    const borders = getPositionedStyle(style, 'border', 'width');\n    const { x , y , box  } = getCanvasPosition(event, canvas);\n    const xOffset = paddings.left + (box && borders.left);\n    const yOffset = paddings.top + (box && borders.top);\n    let { width , height  } = chart;\n    if (borderBox) {\n        width -= paddings.width + borders.width;\n        height -= paddings.height + borders.height;\n    }\n    return {\n        x: Math.round((x - xOffset) / width * canvas.width / currentDevicePixelRatio),\n        y: Math.round((y - yOffset) / height * canvas.height / currentDevicePixelRatio)\n    };\n}\nfunction getContainerSize(canvas, width, height) {\n    let maxWidth, maxHeight;\n    if (width === undefined || height === undefined) {\n        const container = _getParentNode(canvas);\n        if (!container) {\n            width = canvas.clientWidth;\n            height = canvas.clientHeight;\n        } else {\n            const rect = container.getBoundingClientRect(); // this is the border box of the container\n            const containerStyle = getComputedStyle(container);\n            const containerBorder = getPositionedStyle(containerStyle, 'border', 'width');\n            const containerPadding = getPositionedStyle(containerStyle, 'padding');\n            width = rect.width - containerPadding.width - containerBorder.width;\n            height = rect.height - containerPadding.height - containerBorder.height;\n            maxWidth = parseMaxStyle(containerStyle.maxWidth, container, 'clientWidth');\n            maxHeight = parseMaxStyle(containerStyle.maxHeight, container, 'clientHeight');\n        }\n    }\n    return {\n        width,\n        height,\n        maxWidth: maxWidth || INFINITY,\n        maxHeight: maxHeight || INFINITY\n    };\n}\nconst round1 = (v)=>Math.round(v * 10) / 10;\n// eslint-disable-next-line complexity\nfunction getMaximumSize(canvas, bbWidth, bbHeight, aspectRatio) {\n    const style = getComputedStyle(canvas);\n    const margins = getPositionedStyle(style, 'margin');\n    const maxWidth = parseMaxStyle(style.maxWidth, canvas, 'clientWidth') || INFINITY;\n    const maxHeight = parseMaxStyle(style.maxHeight, canvas, 'clientHeight') || INFINITY;\n    const containerSize = getContainerSize(canvas, bbWidth, bbHeight);\n    let { width , height  } = containerSize;\n    if (style.boxSizing === 'content-box') {\n        const borders = getPositionedStyle(style, 'border', 'width');\n        const paddings = getPositionedStyle(style, 'padding');\n        width -= paddings.width + borders.width;\n        height -= paddings.height + borders.height;\n    }\n    width = Math.max(0, width - margins.width);\n    height = Math.max(0, aspectRatio ? width / aspectRatio : height - margins.height);\n    width = round1(Math.min(width, maxWidth, containerSize.maxWidth));\n    height = round1(Math.min(height, maxHeight, containerSize.maxHeight));\n    if (width && !height) {\n        // https://github.com/chartjs/Chart.js/issues/4659\n        // If the canvas has width, but no height, default to aspectRatio of 2 (canvas default)\n        height = round1(width / 2);\n    }\n    const maintainHeight = bbWidth !== undefined || bbHeight !== undefined;\n    if (maintainHeight && aspectRatio && containerSize.height && height > containerSize.height) {\n        height = containerSize.height;\n        width = round1(Math.floor(height * aspectRatio));\n    }\n    return {\n        width,\n        height\n    };\n}\n/**\n * @param chart\n * @param forceRatio\n * @param forceStyle\n * @returns True if the canvas context size or transformation has changed.\n */ function retinaScale(chart, forceRatio, forceStyle) {\n    const pixelRatio = forceRatio || 1;\n    const deviceHeight = Math.floor(chart.height * pixelRatio);\n    const deviceWidth = Math.floor(chart.width * pixelRatio);\n    chart.height = Math.floor(chart.height);\n    chart.width = Math.floor(chart.width);\n    const canvas = chart.canvas;\n    // If no style has been set on the canvas, the render size is used as display size,\n    // making the chart visually bigger, so let's enforce it to the \"correct\" values.\n    // See https://github.com/chartjs/Chart.js/issues/3575\n    if (canvas.style && (forceStyle || !canvas.style.height && !canvas.style.width)) {\n        canvas.style.height = `${chart.height}px`;\n        canvas.style.width = `${chart.width}px`;\n    }\n    if (chart.currentDevicePixelRatio !== pixelRatio || canvas.height !== deviceHeight || canvas.width !== deviceWidth) {\n        chart.currentDevicePixelRatio = pixelRatio;\n        canvas.height = deviceHeight;\n        canvas.width = deviceWidth;\n        chart.ctx.setTransform(pixelRatio, 0, 0, pixelRatio, 0, 0);\n        return true;\n    }\n    return false;\n}\n/**\n * Detects support for options object argument in addEventListener.\n * https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support\n * @private\n */ const supportsEventListenerOptions = function() {\n    let passiveSupported = false;\n    try {\n        const options = {\n            get passive () {\n                passiveSupported = true;\n                return false;\n            }\n        };\n        window.addEventListener('test', null, options);\n        window.removeEventListener('test', null, options);\n    } catch (e) {\n    // continue regardless of error\n    }\n    return passiveSupported;\n}();\n/**\n * The \"used\" size is the final value of a dimension property after all calculations have\n * been performed. This method uses the computed style of `element` but returns undefined\n * if the computed style is not expressed in pixels. That can happen in some cases where\n * `element` has a size relative to its parent and this last one is not yet displayed,\n * for example because of `display: none` on a parent node.\n * @see https://developer.mozilla.org/en-US/docs/Web/CSS/used_value\n * @returns Size in pixels or undefined if unknown.\n */ function readUsedSize(element, property) {\n    const value = getStyle(element, property);\n    const matches = value && value.match(/^(\\d+)(\\.\\d+)?px$/);\n    return matches ? +matches[1] : undefined;\n}\n\n/**\n * @private\n */ function _pointInLine(p1, p2, t, mode) {\n    return {\n        x: p1.x + t * (p2.x - p1.x),\n        y: p1.y + t * (p2.y - p1.y)\n    };\n}\n/**\n * @private\n */ function _steppedInterpolation(p1, p2, t, mode) {\n    return {\n        x: p1.x + t * (p2.x - p1.x),\n        y: mode === 'middle' ? t < 0.5 ? p1.y : p2.y : mode === 'after' ? t < 1 ? p1.y : p2.y : t > 0 ? p2.y : p1.y\n    };\n}\n/**\n * @private\n */ function _bezierInterpolation(p1, p2, t, mode) {\n    const cp1 = {\n        x: p1.cp2x,\n        y: p1.cp2y\n    };\n    const cp2 = {\n        x: p2.cp1x,\n        y: p2.cp1y\n    };\n    const a = _pointInLine(p1, cp1, t);\n    const b = _pointInLine(cp1, cp2, t);\n    const c = _pointInLine(cp2, p2, t);\n    const d = _pointInLine(a, b, t);\n    const e = _pointInLine(b, c, t);\n    return _pointInLine(d, e, t);\n}\n\nconst getRightToLeftAdapter = function(rectX, width) {\n    return {\n        x (x) {\n            return rectX + rectX + width - x;\n        },\n        setWidth (w) {\n            width = w;\n        },\n        textAlign (align) {\n            if (align === 'center') {\n                return align;\n            }\n            return align === 'right' ? 'left' : 'right';\n        },\n        xPlus (x, value) {\n            return x - value;\n        },\n        leftForLtr (x, itemWidth) {\n            return x - itemWidth;\n        }\n    };\n};\nconst getLeftToRightAdapter = function() {\n    return {\n        x (x) {\n            return x;\n        },\n        setWidth (w) {},\n        textAlign (align) {\n            return align;\n        },\n        xPlus (x, value) {\n            return x + value;\n        },\n        leftForLtr (x, _itemWidth) {\n            return x;\n        }\n    };\n};\nfunction getRtlAdapter(rtl, rectX, width) {\n    return rtl ? getRightToLeftAdapter(rectX, width) : getLeftToRightAdapter();\n}\nfunction overrideTextDirection(ctx, direction) {\n    let style, original;\n    if (direction === 'ltr' || direction === 'rtl') {\n        style = ctx.canvas.style;\n        original = [\n            style.getPropertyValue('direction'),\n            style.getPropertyPriority('direction')\n        ];\n        style.setProperty('direction', direction, 'important');\n        ctx.prevTextDirection = original;\n    }\n}\nfunction restoreTextDirection(ctx, original) {\n    if (original !== undefined) {\n        delete ctx.prevTextDirection;\n        ctx.canvas.style.setProperty('direction', original[0], original[1]);\n    }\n}\n\nfunction propertyFn(property) {\n    if (property === 'angle') {\n        return {\n            between: _angleBetween,\n            compare: _angleDiff,\n            normalize: _normalizeAngle\n        };\n    }\n    return {\n        between: _isBetween,\n        compare: (a, b)=>a - b,\n        normalize: (x)=>x\n    };\n}\nfunction normalizeSegment({ start , end , count , loop , style  }) {\n    return {\n        start: start % count,\n        end: end % count,\n        loop: loop && (end - start + 1) % count === 0,\n        style\n    };\n}\nfunction getSegment(segment, points, bounds) {\n    const { property , start: startBound , end: endBound  } = bounds;\n    const { between , normalize  } = propertyFn(property);\n    const count = points.length;\n    let { start , end , loop  } = segment;\n    let i, ilen;\n    if (loop) {\n        start += count;\n        end += count;\n        for(i = 0, ilen = count; i < ilen; ++i){\n            if (!between(normalize(points[start % count][property]), startBound, endBound)) {\n                break;\n            }\n            start--;\n            end--;\n        }\n        start %= count;\n        end %= count;\n    }\n    if (end < start) {\n        end += count;\n    }\n    return {\n        start,\n        end,\n        loop,\n        style: segment.style\n    };\n}\n function _boundSegment(segment, points, bounds) {\n    if (!bounds) {\n        return [\n            segment\n        ];\n    }\n    const { property , start: startBound , end: endBound  } = bounds;\n    const count = points.length;\n    const { compare , between , normalize  } = propertyFn(property);\n    const { start , end , loop , style  } = getSegment(segment, points, bounds);\n    const result = [];\n    let inside = false;\n    let subStart = null;\n    let value, point, prevValue;\n    const startIsBefore = ()=>between(startBound, prevValue, value) && compare(startBound, prevValue) !== 0;\n    const endIsBefore = ()=>compare(endBound, value) === 0 || between(endBound, prevValue, value);\n    const shouldStart = ()=>inside || startIsBefore();\n    const shouldStop = ()=>!inside || endIsBefore();\n    for(let i = start, prev = start; i <= end; ++i){\n        point = points[i % count];\n        if (point.skip) {\n            continue;\n        }\n        value = normalize(point[property]);\n        if (value === prevValue) {\n            continue;\n        }\n        inside = between(value, startBound, endBound);\n        if (subStart === null && shouldStart()) {\n            subStart = compare(value, startBound) === 0 ? i : prev;\n        }\n        if (subStart !== null && shouldStop()) {\n            result.push(normalizeSegment({\n                start: subStart,\n                end: i,\n                loop,\n                count,\n                style\n            }));\n            subStart = null;\n        }\n        prev = i;\n        prevValue = value;\n    }\n    if (subStart !== null) {\n        result.push(normalizeSegment({\n            start: subStart,\n            end,\n            loop,\n            count,\n            style\n        }));\n    }\n    return result;\n}\n function _boundSegments(line, bounds) {\n    const result = [];\n    const segments = line.segments;\n    for(let i = 0; i < segments.length; i++){\n        const sub = _boundSegment(segments[i], line.points, bounds);\n        if (sub.length) {\n            result.push(...sub);\n        }\n    }\n    return result;\n}\n function findStartAndEnd(points, count, loop, spanGaps) {\n    let start = 0;\n    let end = count - 1;\n    if (loop && !spanGaps) {\n        while(start < count && !points[start].skip){\n            start++;\n        }\n    }\n    while(start < count && points[start].skip){\n        start++;\n    }\n    start %= count;\n    if (loop) {\n        end += start;\n    }\n    while(end > start && points[end % count].skip){\n        end--;\n    }\n    end %= count;\n    return {\n        start,\n        end\n    };\n}\n function solidSegments(points, start, max, loop) {\n    const count = points.length;\n    const result = [];\n    let last = start;\n    let prev = points[start];\n    let end;\n    for(end = start + 1; end <= max; ++end){\n        const cur = points[end % count];\n        if (cur.skip || cur.stop) {\n            if (!prev.skip) {\n                loop = false;\n                result.push({\n                    start: start % count,\n                    end: (end - 1) % count,\n                    loop\n                });\n                start = last = cur.stop ? end : null;\n            }\n        } else {\n            last = end;\n            if (prev.skip) {\n                start = end;\n            }\n        }\n        prev = cur;\n    }\n    if (last !== null) {\n        result.push({\n            start: start % count,\n            end: last % count,\n            loop\n        });\n    }\n    return result;\n}\n function _computeSegments(line, segmentOptions) {\n    const points = line.points;\n    const spanGaps = line.options.spanGaps;\n    const count = points.length;\n    if (!count) {\n        return [];\n    }\n    const loop = !!line._loop;\n    const { start , end  } = findStartAndEnd(points, count, loop, spanGaps);\n    if (spanGaps === true) {\n        return splitByStyles(line, [\n            {\n                start,\n                end,\n                loop\n            }\n        ], points, segmentOptions);\n    }\n    const max = end < start ? end + count : end;\n    const completeLoop = !!line._fullLoop && start === 0 && end === count - 1;\n    return splitByStyles(line, solidSegments(points, start, max, completeLoop), points, segmentOptions);\n}\n function splitByStyles(line, segments, points, segmentOptions) {\n    if (!segmentOptions || !segmentOptions.setContext || !points) {\n        return segments;\n    }\n    return doSplitByStyles(line, segments, points, segmentOptions);\n}\n function doSplitByStyles(line, segments, points, segmentOptions) {\n    const chartContext = line._chart.getContext();\n    const baseStyle = readStyle(line.options);\n    const { _datasetIndex: datasetIndex , options: { spanGaps  }  } = line;\n    const count = points.length;\n    const result = [];\n    let prevStyle = baseStyle;\n    let start = segments[0].start;\n    let i = start;\n    function addStyle(s, e, l, st) {\n        const dir = spanGaps ? -1 : 1;\n        if (s === e) {\n            return;\n        }\n        s += count;\n        while(points[s % count].skip){\n            s -= dir;\n        }\n        while(points[e % count].skip){\n            e += dir;\n        }\n        if (s % count !== e % count) {\n            result.push({\n                start: s % count,\n                end: e % count,\n                loop: l,\n                style: st\n            });\n            prevStyle = st;\n            start = e % count;\n        }\n    }\n    for (const segment of segments){\n        start = spanGaps ? start : segment.start;\n        let prev = points[start % count];\n        let style;\n        for(i = start + 1; i <= segment.end; i++){\n            const pt = points[i % count];\n            style = readStyle(segmentOptions.setContext(createContext(chartContext, {\n                type: 'segment',\n                p0: prev,\n                p1: pt,\n                p0DataIndex: (i - 1) % count,\n                p1DataIndex: i % count,\n                datasetIndex\n            })));\n            if (styleChanged(style, prevStyle)) {\n                addStyle(start, i - 1, segment.loop, prevStyle);\n            }\n            prev = pt;\n            prevStyle = style;\n        }\n        if (start < i - 1) {\n            addStyle(start, i - 1, segment.loop, prevStyle);\n        }\n    }\n    return result;\n}\nfunction readStyle(options) {\n    return {\n        backgroundColor: options.backgroundColor,\n        borderCapStyle: options.borderCapStyle,\n        borderDash: options.borderDash,\n        borderDashOffset: options.borderDashOffset,\n        borderJoinStyle: options.borderJoinStyle,\n        borderWidth: options.borderWidth,\n        borderColor: options.borderColor\n    };\n}\nfunction styleChanged(style, prevStyle) {\n    if (!prevStyle) {\n        return false;\n    }\n    const cache = [];\n    const replacer = function(key, value) {\n        if (!isPatternOrGradient(value)) {\n            return value;\n        }\n        if (!cache.includes(value)) {\n            cache.push(value);\n        }\n        return cache.indexOf(value);\n    };\n    return JSON.stringify(style, replacer) !== JSON.stringify(prevStyle, replacer);\n}\n\nexport { unclipArea as $, _rlookupByKey as A, _lookupByKey as B, _isPointInArea as C, getAngleFromPoint as D, toPadding as E, each as F, getMaximumSize as G, HALF_PI as H, _getParentNode as I, readUsedSize as J, supportsEventListenerOptions as K, throttled as L, _isDomSupported as M, _factorize as N, finiteOrDefault as O, PI as P, callback as Q, _addGrace as R, _limitValue as S, TAU as T, toDegrees as U, _measureText as V, _int16Range as W, _alignPixel as X, clipArea as Y, renderText as Z, _arrayUnique as _, resolve as a, fontString as a$, toFont as a0, _toLeftRightCenter as a1, _alignStartEnd as a2, overrides as a3, merge as a4, _capitalize as a5, descriptors as a6, isFunction as a7, _attachContext as a8, _createResolver as a9, overrideTextDirection as aA, _textX as aB, restoreTextDirection as aC, drawPointLegend as aD, distanceBetweenPoints as aE, noop as aF, _setMinAndMaxByKey as aG, niceNum as aH, almostWhole as aI, almostEquals as aJ, _decimalPlaces as aK, Ticks as aL, log10 as aM, _longestText as aN, _filterBetween as aO, _lookup as aP, isPatternOrGradient as aQ, getHoverColor as aR, clone as aS, _merger as aT, _mergerIf as aU, _deprecated as aV, _splitKey as aW, toFontString as aX, splineCurve as aY, splineCurveMonotone as aZ, getStyle as a_, _descriptors as aa, mergeIf as ab, uid as ac, debounce as ad, retinaScale as ae, clearCanvas as af, setsEqual as ag, _elementsEqual as ah, _isClickEvent as ai, _isBetween as aj, _readValueToProps as ak, _updateBezierControlPoints as al, _computeSegments as am, _boundSegments as an, _steppedInterpolation as ao, _bezierInterpolation as ap, _pointInLine as aq, _steppedLineTo as ar, _bezierCurveTo as as, drawPoint as at, addRoundedRectPath as au, toTRBL as av, toTRBLCorners as aw, _boundSegment as ax, _normalizeAngle as ay, getRtlAdapter as az, isArray as b, toLineHeight as b0, PITAU as b1, INFINITY as b2, RAD_PER_DEG as b3, QUARTER_PI as b4, TWO_THIRDS_PI as b5, _angleDiff as b6, color as c, defaults as d, effects as e, resolveObjectKey as f, isNumberFinite as g, defined as h, isObject as i, createContext as j, isNullOrUndef as k, listenArrayEvents as l, toPercentage as m, toDimension as n, formatNumber as o, _angleBetween as p, _getStartAndCountOfVisiblePoints as q, requestAnimFrame as r, sign as s, toRadians as t, unlistenArrayEvents as u, valueOrDefault as v, _scaleRangesChanged as w, isNumber as x, _parseObjectDataRadialScale as y, getRelativePosition as z };\n//# sourceMappingURL=helpers.segment.js.map\n","// The module cache\nvar __webpack_module_cache__ = {};\n\n// The require function\nfunction __webpack_require__(moduleId) {\n\t// Check if module is in cache\n\tvar cachedModule = __webpack_module_cache__[moduleId];\n\tif (cachedModule !== undefined) {\n\t\treturn cachedModule.exports;\n\t}\n\t// Create a new module (and put it into the cache)\n\tvar module = __webpack_module_cache__[moduleId] = {\n\t\t// no module.id needed\n\t\t// no module.loaded needed\n\t\texports: {}\n\t};\n\n\t// Execute the module function\n\t__webpack_modules__[moduleId](module, module.exports, __webpack_require__);\n\n\t// Return the exports of the module\n\treturn module.exports;\n}\n\n","// define getter functions for harmony exports\n__webpack_require__.d = (exports, definition) => {\n\tfor(var key in definition) {\n\t\tif(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {\n\t\t\tObject.defineProperty(exports, key, { enumerable: true, get: definition[key] });\n\t\t}\n\t}\n};","__webpack_require__.o = (obj, prop) => (Object.prototype.hasOwnProperty.call(obj, prop))","// define __esModule on exports\n__webpack_require__.r = (exports) => {\n\tif(typeof Symbol !== 'undefined' && Symbol.toStringTag) {\n\t\tObject.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });\n\t}\n\tObject.defineProperty(exports, '__esModule', { value: true });\n};","import { Chart } from 'chart.js';\nimport annotationPlugin from 'chartjs-plugin-annotation';\n\n\n// Define color ranges for the different value ranges\nconst colorRanges = {\n\tgood: 'rgba(154, 204, 91, 0.2)',\n\tmoderate: 'rgba(255, 235, 59, 0.2)',\n\tunhealthySensitive: 'rgba(255, 152, 0, 0.2)',\n\tunhealthy: 'rgba(255, 59, 59, 0.2)',\n\tveryUnhealthy: 'rgba(143, 63, 151, 0.2)',\n\thazardous: 'rgba(126, 10, 2, 0.2)',\n};\n\n// Define the annotations\nconst annotations = {\n\tdrawTime: 'beforeDatasetsDraw',\n\tannotations: [\n\t\t{\n\t\t\ttype: 'box',\n\t\t\tyScaleID: 'y-axis-0',\n\t\t\tyMin: 0,\n\t\t\tyMax: 12,\n\t\t\tbackgroundColor: colorRanges.good,\n\t\t},\n\t\t{\n\t\t\ttype: 'box',\n\t\t\tyScaleID: 'y-axis-0',\n\t\t\tyMin: 12.1,\n\t\t\tyMax: 35.4,\n\t\t\tbackgroundColor: colorRanges.moderate,\n\t\t},\n\t\t{\n\t\t\ttype: 'box',\n\t\t\tyScaleID: 'y-axis-0',\n\t\t\tyMin: 35.5,\n\t\t\tyMax: 55.4,\n\t\t\tbackgroundColor: colorRanges.unhealthySensitive,\n\t\t},\n\t\t{\n\t\t\ttype: 'box',\n\t\t\tyScaleID: 'y-axis-0',\n\t\t\tyMin: 55.5,\n\t\t\tyMax: 150.4,\n\t\t\tbackgroundColor: colorRanges.unhealthy,\n\t\t},\n\t\t{\n\t\t\ttype: 'box',\n\t\t\tyScaleID: 'y-axis-0',\n\t\t\tyMin: 150.5,\n\t\t\tyMax: 250.4,\n\t\t\tbackgroundColor: colorRanges.veryUnhealthy,\n\t\t},\n\t\t{\n\t\t\ttype: 'box',\n\t\t\tyScaleID: 'y-axis-0',\n\t\t\tyMin: 250.5,\n\t\t\tyMax: 500.4,\n\t\t\tbackgroundColor: colorRanges.hazardous,\n\t\t},\n\t],\n};\n\n\n// Initialisiere das Chart-Objekt\nvar ctx = document.getElementById('chart').getContext('2d');\nvar chart = new Chart(ctx, {\n\t// Art des Diagramms\n\ttype: 'line',\n\n\t// Daten\n\tdata: {\n\t\tlabels: [],\n\t\tdatasets: [{\n\t\t\tlabel: 'PM2.5',\n\t\t\tdata: [],\n\t\t\tbackgroundColor: 'rgba(255, 99, 132, 0.2)',\n\t\t\tborderColor: 'rgba(255,99,132,1)',\n\t\t\tborderWidth: 1,\n\t\t\tpointRadius: 0,\n\t\t\tfill: false\n\t\t}, {\n\t\t\tlabel: 'PM10',\n\t\t\tdata: [],\n\t\t\tbackgroundColor: 'rgba(54, 162, 235, 0.2)',\n\t\t\tborderColor: 'rgba(54, 162, 235, 1)',\n\t\t\tborderWidth: 1,\n\t\t\tpointRadius: 0,\n\t\t\tfill: false\n\t\t}]\n\t},\n\n\t// Konfigurationsoptionen\n\toptions: {\n\t\tmaintainAspectRatio: false,\n\t\tresponsive: true,\n\t\ttitle: {\n\t\t\tdisplay: true,\n\t\t\ttext: 'Feinstaubwerte'\n\t\t},\n\t\tscales: {\n\t\t\tx: {\n\t\t\t\t/*type: 'time',\n\t\t\t\ttime: {\n\t\t\t\t\tunit: 'hour',\n\t\t\t\t\tdisplayFormats: {\n\t\t\t\t\t\thour: 'MMM D, hA'\n\t\t\t\t\t}\n\t\t\t\t},*/\n\t\t\t\tdisplay: true\n\t\t\t},\n\t\t\ty: {\n\t\t\t\tdisplay: true,\n\t\t\t\tscaleLabel: {\n\t\t\t\t\tdisplay: true,\n\t\t\t\t\tlabelString: 'µg/m³'\n\t\t\t\t},\n\t\t\t\tbeginAtZero: true,\n\t\t\t\tsuggestedMin: 0,\n\t\t\t\tsuggestedMax: 10\n\t\t\t}\n\t\t}\n\t},\n\tplugins: {\n\t\tannotation: annotations\n\t},\n});\n\n// Funktion zum Hinzufügen neuer Datenpunkte\nfunction addData(time, pm25, pm10) {\n\t// Füge die neuen Datenpunkte hinzu\n\tchart.data.labels.push(time);\n\tchart.data.datasets[0].data.push(pm25);\n\tchart.data.datasets[1].data.push(pm10);\n\n\t// Begrenze die Anzahl der Datenpunkte auf 100 oder die letzten 12 Stunden\n\tvar maxPoints = 100;\n\tvar maxTime = new Date();\n\tmaxTime.setHours(maxTime.getHours() - 12);\n\n\twhile (chart.data.labels.length > maxPoints || (chart.data.labels.length > 0 && new Date(chart.data.labels[0]) < maxTime)) {\n\t\tchart.data.labels.shift();\n\t\tchart.data.datasets[0].data.shift();\n\t\tchart.data.datasets[1].data.shift();\n\t}\n\n\t// Aktualisiere das Chart\n\tchart.update();\n}\n\n\n\nsetInterval((  ) => {\n\taddData(new Date().toLocaleTimeString(), 1+Math.floor(Math.random() *2), 3+Math.floor(Math.random() * 2));\n}, 1000)"],"names":[],"sourceRoot":""}