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/*!
 * Chart.js v3.7.0
 * https://www.chartjs.org
 * (c) 2021 Chart.js Contributors
 * Released under the MIT License
 */
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Chart = factory());
})(this, (function () { 'use strict';

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 = requestAnimFrame.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 = new Animator();

/*!
 * @kurkle/color v0.1.9
 * https://github.com/kurkle/color#readme
 * (c) 2020 Jukka Kurkela
 * Released under the MIT License
 */
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));
function isShort(v) {
	return 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$1[str[8]]) : 255
			};
		}
	}
	return ret;
}
function hexString(v) {
	var f = isShort(v) ? h1 : h2;
	return v
		? '#' + f(v.r) + f(v.g) + f(v.b) + (v.a < 255 ? f(v.a) : '')
		: v;
}
function round(v) {
	return v + 0.5 | 0;
}
const lim = (v, l, h) => Math.max(Math.min(v, h), l);
function p2b(v) {
	return lim(round(v * 2.55), 0, 255);
}
function n2b(v) {
	return lim(round(v * 255), 0, 255);
}
function b2n(v) {
	return lim(round(v / 2.55) / 100, 0, 1);
}
function n2p(v) {
	return lim(round(v * 100), 0, 100);
}
const RGB_RE = /^rgba?$\s*([-+.\d]+)(%)?[\s,]+([-+.e\d]+)(%)?[\s,]+([-+.e\d]+)(%)?(?:[\s,/]+([-+.e\d]+)(%)?)?\s*$$/;
function rgbParse(str) {
	const m = RGB_RE.exec(str);
	let a = 255;
	let r, g, b;
	if (!m) {
		return;
	}
	if (m[7] !== r) {
		const v = +m[7];
		a = 255 & (m[8] ? p2b(v) : v * 255);
	}
	r = +m[1];
	g = +m[3];
	b = +m[5];
	r = 255 & (m[2] ? p2b(r) : r);
	g = 255 & (m[4] ? p2b(g) : g);
	b = 255 & (m[6] ? p2b(b) : b);
	return {
		r: r,
		g: g,
		b: b,
		a: a
	};
}
function rgbString(v) {
	return v && (
		v.a < 255
			? `rgba(${v.r}, ${v.g}, ${v.b}, ${b2n(v.a)})`
			: `rgb(${v.r}, ${v.g}, ${v.b})`
	);
}
const HUE_RE = /^(hsla?|hwb|hsv)$\s*([-+.e\d]+)(?:deg)?[\s,]+([-+.e\d]+)%[\s,]+([-+.e\d]+)%(?:[\s,]+([-+.e\d]+)(%)?)?\s*$$/;
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 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 = max === r
			? ((g - b) / d) + (g < b ? 6 : 0)
			: max === g
				? (b - r) / d + 2
				: (r - g) / d + 4;
		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$1$1 = {
	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 = {
	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);
	const tkeys = Object.keys(map$1$1);
	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$1$1[k]);
		}
		k = parseInt(names[ok], 16);
		unpacked[nk] = [k >> 16 & 0xFF, k >> 8 & 0xFF, k & 0xFF];
	}
	return unpacked;
}
let names$1;
function nameParse(str) {
	if (!names$1) {
		names$1 = unpack();
		names$1.transparent = [0, 0, 0, 0];
	}
	const a = names$1[str.toLowerCase()];
	return a && {
		r: a[0],
		g: a[1],
		b: a[2],
		a: a.length === 4 ? a[3] : 255
	};
}
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$1(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$1(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$1(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) : this._rgb;
	}
	hexString() {
		return this._valid ? hexString(this._rgb) : this._rgb;
	}
	hslString() {
		return this._valid ? hslString(this._rgb) : this._rgb;
	}
	mix(color, weight) {
		const me = this;
		if (color) {
			const c1 = me.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;
			me.rgb = c1;
		}
		return me;
	}
	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);
}

const isPatternOrGradient = (value) => value instanceof CanvasGradient || value instanceof CanvasPattern;
function color(value) {
  return isPatternOrGradient(value) ? value : index_esm(value);
}
function getHoverColor(value) {
  return isPatternOrGradient(value)
    ? value
    : index_esm(value).saturate(0.5).darken(0.1).hexString();
}

var helpers = /*#__PURE__*/Object.freeze({
__proto__: null,
easingEffects: effects,
color: color,
getHoverColor: getHoverColor,
noop: noop,
uid: uid,
isNullOrUndef: isNullOrUndef,
isArray: isArray,
isObject: isObject,
isFinite: isNumberFinite,
finiteOrDefault: finiteOrDefault,
valueOrDefault: valueOrDefault,
toPercentage: toPercentage,
toDimension: toDimension,
callback: callback,
each: each,
_elementsEqual: _elementsEqual,
clone: clone,
_merger: _merger,
merge: merge,
mergeIf: mergeIf,
_mergerIf: _mergerIf,
_deprecated: _deprecated,
resolveObjectKey: resolveObjectKey,
_capitalize: _capitalize,
defined: defined,
isFunction: isFunction,
setsEqual: setsEqual,
_isClickEvent: _isClickEvent,
toFontString: toFontString,
_measureText: _measureText,
_longestText: _longestText,
_alignPixel: _alignPixel,
clearCanvas: clearCanvas,
drawPoint: drawPoint,
_isPointInArea: _isPointInArea,
clipArea: clipArea,
unclipArea: unclipArea,
_steppedLineTo: _steppedLineTo,
_bezierCurveTo: _bezierCurveTo,
renderText: renderText,
addRoundedRectPath: addRoundedRectPath,
_lookup: _lookup,
_lookupByKey: _lookupByKey,
_rlookupByKey: _rlookupByKey,
_filterBetween: _filterBetween,
listenArrayEvents: listenArrayEvents,
unlistenArrayEvents: unlistenArrayEvents,
_arrayUnique: _arrayUnique,
_createResolver: _createResolver,
_attachContext: _attachContext,
_descriptors: _descriptors,
splineCurve: splineCurve,
splineCurveMonotone: splineCurveMonotone,
_updateBezierControlPoints: _updateBezierControlPoints,
_isDomSupported: _isDomSupported,
_getParentNode: _getParentNode,
getStyle: getStyle,
getRelativePosition: getRelativePosition$1,
getMaximumSize: getMaximumSize,
retinaScale: retinaScale,
supportsEventListenerOptions: supportsEventListenerOptions,
readUsedSize: readUsedSize,
fontString: fontString,
requestAnimFrame: requestAnimFrame,
throttled: throttled,
debounce: debounce,
_toLeftRightCenter: _toLeftRightCenter,
_alignStartEnd: _alignStartEnd,
_textX: _textX,
_pointInLine: _pointInLine,
_steppedInterpolation: _steppedInterpolation,
_bezierInterpolation: _bezierInterpolation,
formatNumber: formatNumber,
toLineHeight: toLineHeight,
_readValueToProps: _readValueToProps,
toTRBL: toTRBL,
toTRBLCorners: toTRBLCorners,
toPadding: toPadding,
toFont: toFont,
resolve: resolve,
_addGrace: _addGrace,
createContext: createContext,
PI: PI,
TAU: TAU,
PITAU: PITAU,
INFINITY: INFINITY,
RAD_PER_DEG: RAD_PER_DEG,
HALF_PI: HALF_PI,
QUARTER_PI: QUARTER_PI,
TWO_THIRDS_PI: TWO_THIRDS_PI,
log10: log10,
sign: sign,
niceNum: niceNum,
_factorize: _factorize,
isNumber: isNumber,
almostEquals: almostEquals,
almostWhole: almostWhole,
_setMinAndMaxByKey: _setMinAndMaxByKey,
toRadians: toRadians,
toDegrees: toDegrees,
_decimalPlaces: _decimalPlaces,
getAngleFromPoint: getAngleFromPoint,
distanceBetweenPoints: distanceBetweenPoints,
_angleDiff: _angleDiff,
_normalizeAngle: _normalizeAngle,
_angleBetween: _angleBetween,
_limitValue: _limitValue,
_int16Range: _int16Range,
_isBetween: _isBetween,
getRtlAdapter: getRtlAdapter,
overrideTextDirection: overrideTextDirection,
restoreTextDirection: restoreTextDirection,
_boundSegment: _boundSegment,
_boundSegments: _boundSegments,
_computeSegments: _computeSegments
});

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;
  }
}

function _detectPlatform(canvas) {
  if (!_isDomSupported() || (typeof OffscreenCanvas !== 'undefined' && canvas instanceof OffscreenCanvas)) {
    return BasicPlatform;
  }
  return DomPlatform;
}

var platforms = /*#__PURE__*/Object.freeze({
__proto__: null,
_detectPlatform: _detectPlatform,
BasePlatform: BasePlatform,
BasicPlatform: BasicPlatform,
DomPlatform: DomPlatform
});

class Element {
  constructor() {
    this.x = undefined;
    this.y = undefined;
    this.active = false;
    this.options = undefined;
    this.$animations = undefined;
  }
  tooltipPosition(useFinalPosition) {
    const {x, y} = this.getProps(['x', 'y'], useFinalPosition);
    return {x, y};
  }
  hasValue() {
    return isNumber(this.x) && isNumber(this.y);
  }
  getProps(props, final) {
    const anims = this.$animations;
    if (!final || !anims) {
      return this;
    }
    const ret = {};
    props.forEach(prop => {
      ret[prop] = anims[prop] && anims[prop].active() ? anims[prop]._to : this[prop];
    });
    return ret;
  }
}
Element.defaults = {};
Element.defaultRoutes = undefined;

defaults.set('scale', {
  display: true,
  offset: false,
  reverse: false,
  beginAtZero: false,
  bounds: 'ticks',
  grace: 0,
  grid: {
    display: true,
    lineWidth: 1,
    drawBorder: true,
    drawOnChartArea: true,
    drawTicks: true,
    tickLength: 8,
    tickWidth: (_ctx, options) => options.lineWidth,
    tickColor: (_ctx, options) => options.color,
    offset: false,
    borderDash: [],
    borderDashOffset: 0.0,
    borderWidth: 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.grid', 'borderColor', '', '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',
});
defaults.describe('scales', {
  _fallback: 'scale',
});
defaults.describe('scale.ticks', {
  _scriptable: (name) => name !== 'backdropPadding' && name !== 'callback',
  _indexable: (name) => name !== 'backdropPadding',
});

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) {
      defaults.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 defaults[scope]) {
      delete defaults[scope][id];
      if (this.override) {
        delete overrides[id];
      }
    }
  }
}
function registerDefaults(item, scope, parentScope) {
  const itemDefaults = merge(Object.create(null), [
    parentScope ? defaults.get(parentScope) : {},
    defaults.get(scope),
    item.defaults
  ]);
  defaults.set(scope, itemDefaults);
  if (item.defaultRoutes) {
    routeDefaults(scope, item.defaultRoutes);
  }
  if (item.descriptors) {
    defaults.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('.');
    defaults.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 {
        each(arg, item => {
          const itemReg = typedRegistry || this._getRegistryForType(item);
          this._exec(method, itemReg, item);
        });
      }
    });
  }
  _exec(method, registry, component) {
    const camelMethod = _capitalize(method);
    callback(component['before' + camelMethod], [], component);
    registry[method](component);
    callback(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 = 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 (callback(method, params, plugin) === false && args.cancelable) {
        return false;
      }
    }
    return true;
  }
  invalidate() {
    if (!isNullOrUndef(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 = valueOrDefault(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 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);
    }
  }
  return plugins;
}
function getOpts(options, all) {
  if (!all && options === false) {
    return null;
  }
  if (options === true) {
    return {};
  }
  return options;
}
function createDescriptors(chart, plugins, options, all) {
  const result = [];
  const context = chart.getContext();
  for (let i = 0; i < plugins.length; i++) {
    const plugin = plugins[i];
    const id = plugin.id;
    const opts = getOpts(options[id], all);
    if (opts === null) {
      continue;
    }
    result.push({
      plugin,
      options: pluginOpts(chart.config, plugin, opts, context)
    });
  }
  return result;
}
function pluginOpts(config, plugin, opts, context) {
  const keys = config.pluginScopeKeys(plugin);
  const scopes = config.getOptionScopes(opts, keys);
  return config.createResolver(scopes, context, [''], {scriptable: false, indexable: false, allKeys: true});
}

var version = "3.7.0";

class BubbleController extends DatasetController {
  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 = valueOrDefault(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 = valueOrDefault(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 {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: meta.label,
      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 firstOpts = this.resolveDataElementOptions(start, mode);
    const sharedOptions = this.getSharedOptions(firstOpts);
    const includeOptions = this.includeOptions(mode, sharedOptions);
    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 = this.resolveDataElementOptions(i, point.active ? 'active' : mode);
        if (reset) {
          properties.options.radius = 0;
        }
      }
      this.updateElement(point, i, properties, mode);
    }
    this.updateSharedOptions(sharedOptions, mode, firstOpts);
  }
  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 += valueOrDefault(parsed && parsed._custom, radius);
    return values;
  }
}
BubbleController.id = 'bubble';
BubbleController.defaults = {
  datasetElementType: false,
  dataElementType: 'point',
  animations: {
    numbers: {
      type: 'number',
      properties: ['x', 'y', 'borderWidth', 'radius']
    }
  }
};
BubbleController.overrides = {
  scales: {
    x: {
      type: 'linear'
    },
    y: {
      type: 'linear'
    }
  },
  plugins: {
    tooltip: {
      callbacks: {
        title() {
          return '';
        }
      }
    }
  }
};

class LineController extends DatasetController {
  initialize() {
    this.enableOptionSharing = true;
    super.initialize();
  }
  update(mode) {
    const meta = this._cachedMeta;
    const {dataset: line, data: points = [], _dataset} = meta;
    const animationsDisabled = this.chart._animationsDisabled;
    let {start, count} = getStartAndCountOfVisiblePoints(meta, points, animationsDisabled);
    this._drawStart = start;
    this._drawCount = count;
    if (scaleRangesChanged(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 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 = isNumber(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 = isNullOrUndef(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 && (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 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();
  }
}
LineController.id = 'line';
LineController.defaults = {
  datasetElementType: 'line',
  dataElementType: 'point',
  showLine: true,
  spanGaps: false,
};
LineController.overrides = {
  scales: {
    _index_: {
      type: 'category',
    },
    _value_: {
      type: 'linear',
    },
  }
};
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(
        _lookupByKey(_parsed, iScale.axis, min).lo,
        animationsDisabled ? pointCount : _lookupByKey(points, axis, iScale.getPixelForValue(min)).lo),
      0, pointCount - 1);
    }
    if (maxDefined) {
      count = _limitValue(Math.max(
        _lookupByKey(_parsed, iScale.axis, max).hi + 1,
        animationsDisabled ? 0 : _lookupByKey(points, axis, iScale.getPixelForValue(max)).hi + 1),
      start, pointCount) - start;
    } else {
      count = pointCount - start;
    }
  }
  return {start, count};
}
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;
}

class PolarAreaController extends DatasetController {
  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 = formatNumber(meta._parsed[index].r, chart.options.locale);
    return {
      label: labels[index] || '',
      value,
    };
  }
  update(mode) {
    const arcs = this._cachedMeta.data;
    this._updateRadius();
    this.updateElements(arcs, 0, arcs.length, mode);
  }
  _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 dataset = this.getDataset();
    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 * PI;
    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(dataset.data[i]) : 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 dataset = this.getDataset();
    const meta = this._cachedMeta;
    let count = 0;
    meta.data.forEach((element, index) => {
      if (!isNaN(dataset.data[index]) && this.chart.getDataVisibility(index)) {
        count++;
      }
    });
    return count;
  }
  _computeAngle(index, mode, defaultAngle) {
    return this.chart.getDataVisibility(index)
      ? toRadians(this.resolveDataElementOptions(index, mode).angle || defaultAngle)
      : 0;
  }
}
PolarAreaController.id = 'polarArea';
PolarAreaController.defaults = {
  dataElementType: 'arc',
  animation: {
    animateRotate: true,
    animateScale: true
  },
  animations: {
    numbers: {
      type: 'number',
      properties: ['x', 'y', 'startAngle', 'endAngle', 'innerRadius', 'outerRadius']
    },
  },
  indexAxis: 'r',
  startAngle: 0,
};
PolarAreaController.overrides = {
  aspectRatio: 1,
  plugins: {
    legend: {
      labels: {
        generateLabels(chart) {
          const data = chart.data;
          if (data.labels.length && data.datasets.length) {
            const {labels: {pointStyle}} = 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,
                lineWidth: style.borderWidth,
                pointStyle: pointStyle,
                hidden: !chart.getDataVisibility(i),
                index: i
              };
            });
          }
          return [];
        }
      },
      onClick(e, legendItem, legend) {
        legend.chart.toggleDataVisibility(legendItem.index);
        legend.chart.update();
      }
    },
    tooltip: {
      callbacks: {
        title() {
          return '';
        },
        label(context) {
          return context.chart.data.labels[context.dataIndex] + ': ' + context.formattedValue;
        }
      }
    }
  },
  scales: {
    r: {
      type: 'radialLinear',
      angleLines: {
        display: false
      },
      beginAtZero: true,
      grid: {
        circular: true
      },
      pointLabels: {
        display: false
      },
      startAngle: 0
    }
  }
};

class PieController extends DoughnutController {
}
PieController.id = 'pie';
PieController.defaults = {
  cutout: 0,
  rotation: 0,
  circumference: 360,
  radius: '100%'
};

class RadarController extends DatasetController {
  getLabelAndValue(index) {
    const vScale = this._cachedMeta.vScale;
    const parsed = this.getParsed(index);
    return {
      label: vScale.getLabels()[index],
      value: '' + vScale.getLabelForValue(parsed[vScale.axis])
    };
  }
  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 dataset = this.getDataset();
    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, dataset.data[i]);
      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);
    }
  }
}
RadarController.id = 'radar';
RadarController.defaults = {
  datasetElementType: 'line',
  dataElementType: 'point',
  indexAxis: 'r',
  showLine: true,
  elements: {
    line: {
      fill: 'start'
    }
  },
};
RadarController.overrides = {
  aspectRatio: 1,
  scales: {
    r: {
      type: 'radialLinear',
    }
  }
};

class ScatterController extends LineController {
}
ScatterController.id = 'scatter';
ScatterController.defaults = {
  showLine: false,
  fill: false
};
ScatterController.overrides = {
  interaction: {
    mode: 'point'
  },
  plugins: {
    tooltip: {
      callbacks: {
        title() {
          return '';
        },
        label(item) {
          return '(' + item.label + ', ' + item.formattedValue + ')';
        }
      }
    }
  },
  scales: {
    x: {
      type: 'linear'
    },
    y: {
      type: 'linear'
    }
  }
};

var controllers = /*#__PURE__*/Object.freeze({
__proto__: null,
BarController: BarController,
BubbleController: BubbleController,
DoughnutController: DoughnutController,
LineController: LineController,
PolarAreaController: PolarAreaController,
PieController: PieController,
RadarController: RadarController,
ScatterController: ScatterController
});

var elements = /*#__PURE__*/Object.freeze({
__proto__: null,
ArcElement: ArcElement,
LineElement: LineElement,
PointElement: PointElement,
BarElement: BarElement
});

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 = isArray(opts.text) ? opts.text.length : 1;
    this._padding = toPadding(opts.padding);
    const textSize = lineCount * toFont(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 = _alignStartEnd(align, left, right);
      titleY = top + offset;
      maxWidth = right - left;
    } else {
      if (options.position === 'left') {
        titleX = left + offset;
        titleY = _alignStartEnd(align, bottom, top);
        rotation = PI * -0.5;
      } else {
        titleX = right - offset;
        titleY = _alignStartEnd(align, top, bottom);
        rotation = PI * 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 = toFont(opts.font);
    const lineHeight = fontOpts.lineHeight;
    const offset = lineHeight / 2 + this._padding.top;
    const {titleX, titleY, maxWidth, rotation} = this._drawArgs(offset);
    renderText(ctx, opts.text, 0, 0, fontOpts, {
      color: opts.color,
      maxWidth,
      rotation,
      textAlign: _toLeftRightCenter(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,
  },
};

var plugins = /*#__PURE__*/Object.freeze({
__proto__: null,
Decimation: plugin_decimation,
Filler: plugin_filler,
Legend: plugin_legend,
SubTitle: plugin_subtitle,
Title: plugin_title,
Tooltip: plugin_tooltip
});

class LinearScale extends LinearScaleBase {
  determineDataLimits() {
    const {min, max} = this.getMinMax(true);
    this.min = isNumberFinite(min) ? min : 0;
    this.max = isNumberFinite(max) ? max : 1;
    this.handleTickRangeOptions();
  }
  computeTickLimit() {
    const horizontal = this.isHorizontal();
    const length = horizontal ? this.width : this.height;
    const minRotation = toRadians(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;
  }
}
LinearScale.id = 'linear';
LinearScale.defaults = {
  ticks: {
    callback: Ticks.formatters.numeric
  }
};

var scales = /*#__PURE__*/Object.freeze({
__proto__: null,
CategoryScale: CategoryScale,
LinearScale: LinearScale,
LogarithmicScale: LogarithmicScale,
RadialLinearScale: RadialLinearScale,
TimeScale: TimeScale,
TimeSeriesScale: TimeSeriesScale
});

Chart.register(controllers, scales, elements, plugins);
Chart.helpers = {...helpers};
Chart._adapters = _adapters;
Chart.Animation = Animation;
Chart.Animations = Animations;
Chart.animator = animator;
Chart.controllers = registry.controllers.items;
Chart.DatasetController = DatasetController;
Chart.Element = Element;
Chart.elements = elements;
Chart.Interaction = Interaction;
Chart.layouts = layouts;
Chart.platforms = platforms;
Chart.Scale = Scale;
Chart.Ticks = Ticks;
Object.assign(Chart, controllers, scales, elements, plugins, platforms);
Chart.Chart = Chart;
if (typeof window !== 'undefined') {
  window.Chart = Chart;
}

return Chart;

}));

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