10525 lines
306 KiB
JavaScript
10525 lines
306 KiB
JavaScript
/*!
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* Chart.js
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* http://chartjs.org/
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* Version: 2.2.2
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*
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* Copyright 2016 Nick Downie
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* Released under the MIT license
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* https://github.com/chartjs/Chart.js/blob/master/LICENSE.md
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*/
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(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Chart = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
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},{}],2:[function(require,module,exports){
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/* MIT license */
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var colorNames = require(6);
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module.exports = {
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getRgba: getRgba,
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getHsla: getHsla,
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getRgb: getRgb,
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getHsl: getHsl,
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getHwb: getHwb,
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getAlpha: getAlpha,
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hexString: hexString,
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rgbString: rgbString,
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rgbaString: rgbaString,
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percentString: percentString,
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percentaString: percentaString,
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hslString: hslString,
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hslaString: hslaString,
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hwbString: hwbString,
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keyword: keyword
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}
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function getRgba(string) {
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if (!string) {
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return;
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}
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var abbr = /^#([a-fA-F0-9]{3})$/,
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hex = /^#([a-fA-F0-9]{6})$/,
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rgba = /^rgba?\(\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/,
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per = /^rgba?\(\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/,
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keyword = /(\w+)/;
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var rgb = [0, 0, 0],
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a = 1,
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match = string.match(abbr);
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if (match) {
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match = match[1];
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for (var i = 0; i < rgb.length; i++) {
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rgb[i] = parseInt(match[i] + match[i], 16);
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}
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}
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else if (match = string.match(hex)) {
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match = match[1];
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for (var i = 0; i < rgb.length; i++) {
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rgb[i] = parseInt(match.slice(i * 2, i * 2 + 2), 16);
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}
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}
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else if (match = string.match(rgba)) {
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for (var i = 0; i < rgb.length; i++) {
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rgb[i] = parseInt(match[i + 1]);
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}
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a = parseFloat(match[4]);
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}
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else if (match = string.match(per)) {
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for (var i = 0; i < rgb.length; i++) {
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rgb[i] = Math.round(parseFloat(match[i + 1]) * 2.55);
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}
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a = parseFloat(match[4]);
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}
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else if (match = string.match(keyword)) {
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if (match[1] == "transparent") {
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return [0, 0, 0, 0];
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}
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rgb = colorNames[match[1]];
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if (!rgb) {
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return;
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}
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}
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for (var i = 0; i < rgb.length; i++) {
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rgb[i] = scale(rgb[i], 0, 255);
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}
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if (!a && a != 0) {
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a = 1;
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}
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else {
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a = scale(a, 0, 1);
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}
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rgb[3] = a;
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return rgb;
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}
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function getHsla(string) {
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if (!string) {
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return;
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}
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var hsl = /^hsla?\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/;
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var match = string.match(hsl);
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if (match) {
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var alpha = parseFloat(match[4]);
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var h = scale(parseInt(match[1]), 0, 360),
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s = scale(parseFloat(match[2]), 0, 100),
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l = scale(parseFloat(match[3]), 0, 100),
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a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);
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return [h, s, l, a];
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}
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}
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function getHwb(string) {
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if (!string) {
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return;
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}
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var hwb = /^hwb\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/;
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var match = string.match(hwb);
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if (match) {
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var alpha = parseFloat(match[4]);
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var h = scale(parseInt(match[1]), 0, 360),
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w = scale(parseFloat(match[2]), 0, 100),
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b = scale(parseFloat(match[3]), 0, 100),
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a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);
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return [h, w, b, a];
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}
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}
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function getRgb(string) {
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var rgba = getRgba(string);
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return rgba && rgba.slice(0, 3);
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}
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function getHsl(string) {
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var hsla = getHsla(string);
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return hsla && hsla.slice(0, 3);
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}
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function getAlpha(string) {
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var vals = getRgba(string);
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if (vals) {
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return vals[3];
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}
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else if (vals = getHsla(string)) {
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return vals[3];
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}
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else if (vals = getHwb(string)) {
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return vals[3];
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}
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}
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// generators
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function hexString(rgb) {
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return "#" + hexDouble(rgb[0]) + hexDouble(rgb[1])
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+ hexDouble(rgb[2]);
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}
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function rgbString(rgba, alpha) {
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if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {
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return rgbaString(rgba, alpha);
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}
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return "rgb(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2] + ")";
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}
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function rgbaString(rgba, alpha) {
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if (alpha === undefined) {
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alpha = (rgba[3] !== undefined ? rgba[3] : 1);
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}
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return "rgba(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2]
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+ ", " + alpha + ")";
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}
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function percentString(rgba, alpha) {
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if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {
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return percentaString(rgba, alpha);
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}
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var r = Math.round(rgba[0]/255 * 100),
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g = Math.round(rgba[1]/255 * 100),
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b = Math.round(rgba[2]/255 * 100);
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return "rgb(" + r + "%, " + g + "%, " + b + "%)";
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}
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function percentaString(rgba, alpha) {
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var r = Math.round(rgba[0]/255 * 100),
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g = Math.round(rgba[1]/255 * 100),
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b = Math.round(rgba[2]/255 * 100);
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return "rgba(" + r + "%, " + g + "%, " + b + "%, " + (alpha || rgba[3] || 1) + ")";
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}
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function hslString(hsla, alpha) {
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if (alpha < 1 || (hsla[3] && hsla[3] < 1)) {
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return hslaString(hsla, alpha);
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}
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return "hsl(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%)";
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}
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function hslaString(hsla, alpha) {
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if (alpha === undefined) {
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alpha = (hsla[3] !== undefined ? hsla[3] : 1);
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}
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return "hsla(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%, "
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+ alpha + ")";
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}
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// hwb is a bit different than rgb(a) & hsl(a) since there is no alpha specific syntax
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// (hwb have alpha optional & 1 is default value)
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function hwbString(hwb, alpha) {
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if (alpha === undefined) {
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alpha = (hwb[3] !== undefined ? hwb[3] : 1);
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}
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return "hwb(" + hwb[0] + ", " + hwb[1] + "%, " + hwb[2] + "%"
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+ (alpha !== undefined && alpha !== 1 ? ", " + alpha : "") + ")";
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}
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function keyword(rgb) {
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return reverseNames[rgb.slice(0, 3)];
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}
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// helpers
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function scale(num, min, max) {
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return Math.min(Math.max(min, num), max);
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}
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function hexDouble(num) {
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var str = num.toString(16).toUpperCase();
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return (str.length < 2) ? "0" + str : str;
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}
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//create a list of reverse color names
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var reverseNames = {};
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for (var name in colorNames) {
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reverseNames[colorNames[name]] = name;
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}
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},{"6":6}],3:[function(require,module,exports){
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/* MIT license */
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var convert = require(5);
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var string = require(2);
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var Color = function (obj) {
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if (obj instanceof Color) {
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return obj;
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}
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if (!(this instanceof Color)) {
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return new Color(obj);
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}
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this.values = {
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rgb: [0, 0, 0],
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hsl: [0, 0, 0],
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hsv: [0, 0, 0],
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hwb: [0, 0, 0],
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cmyk: [0, 0, 0, 0],
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alpha: 1
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};
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// parse Color() argument
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var vals;
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if (typeof obj === 'string') {
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vals = string.getRgba(obj);
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if (vals) {
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this.setValues('rgb', vals);
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} else if (vals = string.getHsla(obj)) {
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this.setValues('hsl', vals);
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} else if (vals = string.getHwb(obj)) {
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this.setValues('hwb', vals);
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} else {
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throw new Error('Unable to parse color from string "' + obj + '"');
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}
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} else if (typeof obj === 'object') {
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vals = obj;
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if (vals.r !== undefined || vals.red !== undefined) {
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this.setValues('rgb', vals);
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} else if (vals.l !== undefined || vals.lightness !== undefined) {
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this.setValues('hsl', vals);
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} else if (vals.v !== undefined || vals.value !== undefined) {
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this.setValues('hsv', vals);
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} else if (vals.w !== undefined || vals.whiteness !== undefined) {
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this.setValues('hwb', vals);
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} else if (vals.c !== undefined || vals.cyan !== undefined) {
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this.setValues('cmyk', vals);
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} else {
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throw new Error('Unable to parse color from object ' + JSON.stringify(obj));
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}
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}
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};
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Color.prototype = {
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rgb: function () {
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return this.setSpace('rgb', arguments);
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},
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hsl: function () {
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return this.setSpace('hsl', arguments);
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},
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hsv: function () {
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return this.setSpace('hsv', arguments);
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},
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hwb: function () {
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return this.setSpace('hwb', arguments);
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},
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cmyk: function () {
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return this.setSpace('cmyk', arguments);
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},
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rgbArray: function () {
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return this.values.rgb;
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},
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hslArray: function () {
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return this.values.hsl;
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},
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hsvArray: function () {
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return this.values.hsv;
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},
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hwbArray: function () {
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var values = this.values;
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if (values.alpha !== 1) {
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return values.hwb.concat([values.alpha]);
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}
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return values.hwb;
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},
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cmykArray: function () {
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return this.values.cmyk;
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},
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rgbaArray: function () {
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var values = this.values;
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return values.rgb.concat([values.alpha]);
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},
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hslaArray: function () {
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var values = this.values;
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return values.hsl.concat([values.alpha]);
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},
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alpha: function (val) {
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if (val === undefined) {
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return this.values.alpha;
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}
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this.setValues('alpha', val);
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return this;
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},
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red: function (val) {
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return this.setChannel('rgb', 0, val);
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},
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green: function (val) {
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return this.setChannel('rgb', 1, val);
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},
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blue: function (val) {
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return this.setChannel('rgb', 2, val);
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},
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hue: function (val) {
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if (val) {
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val %= 360;
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val = val < 0 ? 360 + val : val;
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}
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return this.setChannel('hsl', 0, val);
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},
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saturation: function (val) {
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return this.setChannel('hsl', 1, val);
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},
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lightness: function (val) {
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return this.setChannel('hsl', 2, val);
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},
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saturationv: function (val) {
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return this.setChannel('hsv', 1, val);
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},
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whiteness: function (val) {
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return this.setChannel('hwb', 1, val);
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},
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blackness: function (val) {
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return this.setChannel('hwb', 2, val);
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},
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value: function (val) {
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return this.setChannel('hsv', 2, val);
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},
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cyan: function (val) {
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return this.setChannel('cmyk', 0, val);
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},
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magenta: function (val) {
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return this.setChannel('cmyk', 1, val);
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},
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yellow: function (val) {
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return this.setChannel('cmyk', 2, val);
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},
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black: function (val) {
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return this.setChannel('cmyk', 3, val);
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},
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hexString: function () {
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return string.hexString(this.values.rgb);
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},
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rgbString: function () {
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return string.rgbString(this.values.rgb, this.values.alpha);
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},
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rgbaString: function () {
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return string.rgbaString(this.values.rgb, this.values.alpha);
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},
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percentString: function () {
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return string.percentString(this.values.rgb, this.values.alpha);
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},
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hslString: function () {
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return string.hslString(this.values.hsl, this.values.alpha);
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},
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hslaString: function () {
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return string.hslaString(this.values.hsl, this.values.alpha);
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},
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hwbString: function () {
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return string.hwbString(this.values.hwb, this.values.alpha);
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},
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keyword: function () {
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return string.keyword(this.values.rgb, this.values.alpha);
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},
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rgbNumber: function () {
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var rgb = this.values.rgb;
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return (rgb[0] << 16) | (rgb[1] << 8) | rgb[2];
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},
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luminosity: function () {
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// http://www.w3.org/TR/WCAG20/#relativeluminancedef
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var rgb = this.values.rgb;
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var lum = [];
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for (var i = 0; i < rgb.length; i++) {
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var chan = rgb[i] / 255;
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lum[i] = (chan <= 0.03928) ? chan / 12.92 : Math.pow(((chan + 0.055) / 1.055), 2.4);
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}
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return 0.2126 * lum[0] + 0.7152 * lum[1] + 0.0722 * lum[2];
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},
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contrast: function (color2) {
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// http://www.w3.org/TR/WCAG20/#contrast-ratiodef
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var lum1 = this.luminosity();
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var lum2 = color2.luminosity();
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if (lum1 > lum2) {
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return (lum1 + 0.05) / (lum2 + 0.05);
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}
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return (lum2 + 0.05) / (lum1 + 0.05);
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},
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level: function (color2) {
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var contrastRatio = this.contrast(color2);
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if (contrastRatio >= 7.1) {
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return 'AAA';
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}
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return (contrastRatio >= 4.5) ? 'AA' : '';
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},
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dark: function () {
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// YIQ equation from http://24ways.org/2010/calculating-color-contrast
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var rgb = this.values.rgb;
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var yiq = (rgb[0] * 299 + rgb[1] * 587 + rgb[2] * 114) / 1000;
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return yiq < 128;
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},
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light: function () {
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return !this.dark();
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},
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negate: function () {
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var rgb = [];
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for (var i = 0; i < 3; i++) {
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rgb[i] = 255 - this.values.rgb[i];
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}
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this.setValues('rgb', rgb);
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return this;
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},
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lighten: function (ratio) {
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var hsl = this.values.hsl;
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hsl[2] += hsl[2] * ratio;
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this.setValues('hsl', hsl);
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return this;
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},
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darken: function (ratio) {
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var hsl = this.values.hsl;
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hsl[2] -= hsl[2] * ratio;
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this.setValues('hsl', hsl);
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return this;
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},
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saturate: function (ratio) {
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var hsl = this.values.hsl;
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hsl[1] += hsl[1] * ratio;
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this.setValues('hsl', hsl);
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return this;
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},
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desaturate: function (ratio) {
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var hsl = this.values.hsl;
|
|
hsl[1] -= hsl[1] * ratio;
|
|
this.setValues('hsl', hsl);
|
|
return this;
|
|
},
|
|
|
|
whiten: function (ratio) {
|
|
var hwb = this.values.hwb;
|
|
hwb[1] += hwb[1] * ratio;
|
|
this.setValues('hwb', hwb);
|
|
return this;
|
|
},
|
|
|
|
blacken: function (ratio) {
|
|
var hwb = this.values.hwb;
|
|
hwb[2] += hwb[2] * ratio;
|
|
this.setValues('hwb', hwb);
|
|
return this;
|
|
},
|
|
|
|
greyscale: function () {
|
|
var rgb = this.values.rgb;
|
|
// http://en.wikipedia.org/wiki/Grayscale#Converting_color_to_grayscale
|
|
var val = rgb[0] * 0.3 + rgb[1] * 0.59 + rgb[2] * 0.11;
|
|
this.setValues('rgb', [val, val, val]);
|
|
return this;
|
|
},
|
|
|
|
clearer: function (ratio) {
|
|
var alpha = this.values.alpha;
|
|
this.setValues('alpha', alpha - (alpha * ratio));
|
|
return this;
|
|
},
|
|
|
|
opaquer: function (ratio) {
|
|
var alpha = this.values.alpha;
|
|
this.setValues('alpha', alpha + (alpha * ratio));
|
|
return this;
|
|
},
|
|
|
|
rotate: function (degrees) {
|
|
var hsl = this.values.hsl;
|
|
var hue = (hsl[0] + degrees) % 360;
|
|
hsl[0] = hue < 0 ? 360 + hue : hue;
|
|
this.setValues('hsl', hsl);
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Ported from sass implementation in C
|
|
* https://github.com/sass/libsass/blob/0e6b4a2850092356aa3ece07c6b249f0221caced/functions.cpp#L209
|
|
*/
|
|
mix: function (mixinColor, weight) {
|
|
var color1 = this;
|
|
var color2 = mixinColor;
|
|
var p = weight === undefined ? 0.5 : weight;
|
|
|
|
var w = 2 * p - 1;
|
|
var a = color1.alpha() - color2.alpha();
|
|
|
|
var w1 = (((w * a === -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
|
|
var w2 = 1 - w1;
|
|
|
|
return this
|
|
.rgb(
|
|
w1 * color1.red() + w2 * color2.red(),
|
|
w1 * color1.green() + w2 * color2.green(),
|
|
w1 * color1.blue() + w2 * color2.blue()
|
|
)
|
|
.alpha(color1.alpha() * p + color2.alpha() * (1 - p));
|
|
},
|
|
|
|
toJSON: function () {
|
|
return this.rgb();
|
|
},
|
|
|
|
clone: function () {
|
|
// NOTE(SB): using node-clone creates a dependency to Buffer when using browserify,
|
|
// making the final build way to big to embed in Chart.js. So let's do it manually,
|
|
// assuming that values to clone are 1 dimension arrays containing only numbers,
|
|
// except 'alpha' which is a number.
|
|
var result = new Color();
|
|
var source = this.values;
|
|
var target = result.values;
|
|
var value, type;
|
|
|
|
for (var prop in source) {
|
|
if (source.hasOwnProperty(prop)) {
|
|
value = source[prop];
|
|
type = ({}).toString.call(value);
|
|
if (type === '[object Array]') {
|
|
target[prop] = value.slice(0);
|
|
} else if (type === '[object Number]') {
|
|
target[prop] = value;
|
|
} else {
|
|
console.error('unexpected color value:', value);
|
|
}
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
};
|
|
|
|
Color.prototype.spaces = {
|
|
rgb: ['red', 'green', 'blue'],
|
|
hsl: ['hue', 'saturation', 'lightness'],
|
|
hsv: ['hue', 'saturation', 'value'],
|
|
hwb: ['hue', 'whiteness', 'blackness'],
|
|
cmyk: ['cyan', 'magenta', 'yellow', 'black']
|
|
};
|
|
|
|
Color.prototype.maxes = {
|
|
rgb: [255, 255, 255],
|
|
hsl: [360, 100, 100],
|
|
hsv: [360, 100, 100],
|
|
hwb: [360, 100, 100],
|
|
cmyk: [100, 100, 100, 100]
|
|
};
|
|
|
|
Color.prototype.getValues = function (space) {
|
|
var values = this.values;
|
|
var vals = {};
|
|
|
|
for (var i = 0; i < space.length; i++) {
|
|
vals[space.charAt(i)] = values[space][i];
|
|
}
|
|
|
|
if (values.alpha !== 1) {
|
|
vals.a = values.alpha;
|
|
}
|
|
|
|
// {r: 255, g: 255, b: 255, a: 0.4}
|
|
return vals;
|
|
};
|
|
|
|
Color.prototype.setValues = function (space, vals) {
|
|
var values = this.values;
|
|
var spaces = this.spaces;
|
|
var maxes = this.maxes;
|
|
var alpha = 1;
|
|
var i;
|
|
|
|
if (space === 'alpha') {
|
|
alpha = vals;
|
|
} else if (vals.length) {
|
|
// [10, 10, 10]
|
|
values[space] = vals.slice(0, space.length);
|
|
alpha = vals[space.length];
|
|
} else if (vals[space.charAt(0)] !== undefined) {
|
|
// {r: 10, g: 10, b: 10}
|
|
for (i = 0; i < space.length; i++) {
|
|
values[space][i] = vals[space.charAt(i)];
|
|
}
|
|
|
|
alpha = vals.a;
|
|
} else if (vals[spaces[space][0]] !== undefined) {
|
|
// {red: 10, green: 10, blue: 10}
|
|
var chans = spaces[space];
|
|
|
|
for (i = 0; i < space.length; i++) {
|
|
values[space][i] = vals[chans[i]];
|
|
}
|
|
|
|
alpha = vals.alpha;
|
|
}
|
|
|
|
values.alpha = Math.max(0, Math.min(1, (alpha === undefined ? values.alpha : alpha)));
|
|
|
|
if (space === 'alpha') {
|
|
return false;
|
|
}
|
|
|
|
var capped;
|
|
|
|
// cap values of the space prior converting all values
|
|
for (i = 0; i < space.length; i++) {
|
|
capped = Math.max(0, Math.min(maxes[space][i], values[space][i]));
|
|
values[space][i] = Math.round(capped);
|
|
}
|
|
|
|
// convert to all the other color spaces
|
|
for (var sname in spaces) {
|
|
if (sname !== space) {
|
|
values[sname] = convert[space][sname](values[space]);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
Color.prototype.setSpace = function (space, args) {
|
|
var vals = args[0];
|
|
|
|
if (vals === undefined) {
|
|
// color.rgb()
|
|
return this.getValues(space);
|
|
}
|
|
|
|
// color.rgb(10, 10, 10)
|
|
if (typeof vals === 'number') {
|
|
vals = Array.prototype.slice.call(args);
|
|
}
|
|
|
|
this.setValues(space, vals);
|
|
return this;
|
|
};
|
|
|
|
Color.prototype.setChannel = function (space, index, val) {
|
|
var svalues = this.values[space];
|
|
if (val === undefined) {
|
|
// color.red()
|
|
return svalues[index];
|
|
} else if (val === svalues[index]) {
|
|
// color.red(color.red())
|
|
return this;
|
|
}
|
|
|
|
// color.red(100)
|
|
svalues[index] = val;
|
|
this.setValues(space, svalues);
|
|
|
|
return this;
|
|
};
|
|
|
|
if (typeof window !== 'undefined') {
|
|
window.Color = Color;
|
|
}
|
|
|
|
module.exports = Color;
|
|
|
|
},{"2":2,"5":5}],4:[function(require,module,exports){
|
|
/* MIT license */
|
|
|
|
module.exports = {
|
|
rgb2hsl: rgb2hsl,
|
|
rgb2hsv: rgb2hsv,
|
|
rgb2hwb: rgb2hwb,
|
|
rgb2cmyk: rgb2cmyk,
|
|
rgb2keyword: rgb2keyword,
|
|
rgb2xyz: rgb2xyz,
|
|
rgb2lab: rgb2lab,
|
|
rgb2lch: rgb2lch,
|
|
|
|
hsl2rgb: hsl2rgb,
|
|
hsl2hsv: hsl2hsv,
|
|
hsl2hwb: hsl2hwb,
|
|
hsl2cmyk: hsl2cmyk,
|
|
hsl2keyword: hsl2keyword,
|
|
|
|
hsv2rgb: hsv2rgb,
|
|
hsv2hsl: hsv2hsl,
|
|
hsv2hwb: hsv2hwb,
|
|
hsv2cmyk: hsv2cmyk,
|
|
hsv2keyword: hsv2keyword,
|
|
|
|
hwb2rgb: hwb2rgb,
|
|
hwb2hsl: hwb2hsl,
|
|
hwb2hsv: hwb2hsv,
|
|
hwb2cmyk: hwb2cmyk,
|
|
hwb2keyword: hwb2keyword,
|
|
|
|
cmyk2rgb: cmyk2rgb,
|
|
cmyk2hsl: cmyk2hsl,
|
|
cmyk2hsv: cmyk2hsv,
|
|
cmyk2hwb: cmyk2hwb,
|
|
cmyk2keyword: cmyk2keyword,
|
|
|
|
keyword2rgb: keyword2rgb,
|
|
keyword2hsl: keyword2hsl,
|
|
keyword2hsv: keyword2hsv,
|
|
keyword2hwb: keyword2hwb,
|
|
keyword2cmyk: keyword2cmyk,
|
|
keyword2lab: keyword2lab,
|
|
keyword2xyz: keyword2xyz,
|
|
|
|
xyz2rgb: xyz2rgb,
|
|
xyz2lab: xyz2lab,
|
|
xyz2lch: xyz2lch,
|
|
|
|
lab2xyz: lab2xyz,
|
|
lab2rgb: lab2rgb,
|
|
lab2lch: lab2lch,
|
|
|
|
lch2lab: lch2lab,
|
|
lch2xyz: lch2xyz,
|
|
lch2rgb: lch2rgb
|
|
}
|
|
|
|
|
|
function rgb2hsl(rgb) {
|
|
var r = rgb[0]/255,
|
|
g = rgb[1]/255,
|
|
b = rgb[2]/255,
|
|
min = Math.min(r, g, b),
|
|
max = Math.max(r, g, b),
|
|
delta = max - min,
|
|
h, s, l;
|
|
|
|
if (max == min)
|
|
h = 0;
|
|
else if (r == max)
|
|
h = (g - b) / delta;
|
|
else if (g == max)
|
|
h = 2 + (b - r) / delta;
|
|
else if (b == max)
|
|
h = 4 + (r - g)/ delta;
|
|
|
|
h = Math.min(h * 60, 360);
|
|
|
|
if (h < 0)
|
|
h += 360;
|
|
|
|
l = (min + max) / 2;
|
|
|
|
if (max == min)
|
|
s = 0;
|
|
else if (l <= 0.5)
|
|
s = delta / (max + min);
|
|
else
|
|
s = delta / (2 - max - min);
|
|
|
|
return [h, s * 100, l * 100];
|
|
}
|
|
|
|
function rgb2hsv(rgb) {
|
|
var r = rgb[0],
|
|
g = rgb[1],
|
|
b = rgb[2],
|
|
min = Math.min(r, g, b),
|
|
max = Math.max(r, g, b),
|
|
delta = max - min,
|
|
h, s, v;
|
|
|
|
if (max == 0)
|
|
s = 0;
|
|
else
|
|
s = (delta/max * 1000)/10;
|
|
|
|
if (max == min)
|
|
h = 0;
|
|
else if (r == max)
|
|
h = (g - b) / delta;
|
|
else if (g == max)
|
|
h = 2 + (b - r) / delta;
|
|
else if (b == max)
|
|
h = 4 + (r - g) / delta;
|
|
|
|
h = Math.min(h * 60, 360);
|
|
|
|
if (h < 0)
|
|
h += 360;
|
|
|
|
v = ((max / 255) * 1000) / 10;
|
|
|
|
return [h, s, v];
|
|
}
|
|
|
|
function rgb2hwb(rgb) {
|
|
var r = rgb[0],
|
|
g = rgb[1],
|
|
b = rgb[2],
|
|
h = rgb2hsl(rgb)[0],
|
|
w = 1/255 * Math.min(r, Math.min(g, b)),
|
|
b = 1 - 1/255 * Math.max(r, Math.max(g, b));
|
|
|
|
return [h, w * 100, b * 100];
|
|
}
|
|
|
|
function rgb2cmyk(rgb) {
|
|
var r = rgb[0] / 255,
|
|
g = rgb[1] / 255,
|
|
b = rgb[2] / 255,
|
|
c, m, y, k;
|
|
|
|
k = Math.min(1 - r, 1 - g, 1 - b);
|
|
c = (1 - r - k) / (1 - k) || 0;
|
|
m = (1 - g - k) / (1 - k) || 0;
|
|
y = (1 - b - k) / (1 - k) || 0;
|
|
return [c * 100, m * 100, y * 100, k * 100];
|
|
}
|
|
|
|
function rgb2keyword(rgb) {
|
|
return reverseKeywords[JSON.stringify(rgb)];
|
|
}
|
|
|
|
function rgb2xyz(rgb) {
|
|
var r = rgb[0] / 255,
|
|
g = rgb[1] / 255,
|
|
b = rgb[2] / 255;
|
|
|
|
// assume sRGB
|
|
r = r > 0.04045 ? Math.pow(((r + 0.055) / 1.055), 2.4) : (r / 12.92);
|
|
g = g > 0.04045 ? Math.pow(((g + 0.055) / 1.055), 2.4) : (g / 12.92);
|
|
b = b > 0.04045 ? Math.pow(((b + 0.055) / 1.055), 2.4) : (b / 12.92);
|
|
|
|
var x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805);
|
|
var y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722);
|
|
var z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505);
|
|
|
|
return [x * 100, y *100, z * 100];
|
|
}
|
|
|
|
function rgb2lab(rgb) {
|
|
var xyz = rgb2xyz(rgb),
|
|
x = xyz[0],
|
|
y = xyz[1],
|
|
z = xyz[2],
|
|
l, a, b;
|
|
|
|
x /= 95.047;
|
|
y /= 100;
|
|
z /= 108.883;
|
|
|
|
x = x > 0.008856 ? Math.pow(x, 1/3) : (7.787 * x) + (16 / 116);
|
|
y = y > 0.008856 ? Math.pow(y, 1/3) : (7.787 * y) + (16 / 116);
|
|
z = z > 0.008856 ? Math.pow(z, 1/3) : (7.787 * z) + (16 / 116);
|
|
|
|
l = (116 * y) - 16;
|
|
a = 500 * (x - y);
|
|
b = 200 * (y - z);
|
|
|
|
return [l, a, b];
|
|
}
|
|
|
|
function rgb2lch(args) {
|
|
return lab2lch(rgb2lab(args));
|
|
}
|
|
|
|
function hsl2rgb(hsl) {
|
|
var h = hsl[0] / 360,
|
|
s = hsl[1] / 100,
|
|
l = hsl[2] / 100,
|
|
t1, t2, t3, rgb, val;
|
|
|
|
if (s == 0) {
|
|
val = l * 255;
|
|
return [val, val, val];
|
|
}
|
|
|
|
if (l < 0.5)
|
|
t2 = l * (1 + s);
|
|
else
|
|
t2 = l + s - l * s;
|
|
t1 = 2 * l - t2;
|
|
|
|
rgb = [0, 0, 0];
|
|
for (var i = 0; i < 3; i++) {
|
|
t3 = h + 1 / 3 * - (i - 1);
|
|
t3 < 0 && t3++;
|
|
t3 > 1 && t3--;
|
|
|
|
if (6 * t3 < 1)
|
|
val = t1 + (t2 - t1) * 6 * t3;
|
|
else if (2 * t3 < 1)
|
|
val = t2;
|
|
else if (3 * t3 < 2)
|
|
val = t1 + (t2 - t1) * (2 / 3 - t3) * 6;
|
|
else
|
|
val = t1;
|
|
|
|
rgb[i] = val * 255;
|
|
}
|
|
|
|
return rgb;
|
|
}
|
|
|
|
function hsl2hsv(hsl) {
|
|
var h = hsl[0],
|
|
s = hsl[1] / 100,
|
|
l = hsl[2] / 100,
|
|
sv, v;
|
|
|
|
if(l === 0) {
|
|
// no need to do calc on black
|
|
// also avoids divide by 0 error
|
|
return [0, 0, 0];
|
|
}
|
|
|
|
l *= 2;
|
|
s *= (l <= 1) ? l : 2 - l;
|
|
v = (l + s) / 2;
|
|
sv = (2 * s) / (l + s);
|
|
return [h, sv * 100, v * 100];
|
|
}
|
|
|
|
function hsl2hwb(args) {
|
|
return rgb2hwb(hsl2rgb(args));
|
|
}
|
|
|
|
function hsl2cmyk(args) {
|
|
return rgb2cmyk(hsl2rgb(args));
|
|
}
|
|
|
|
function hsl2keyword(args) {
|
|
return rgb2keyword(hsl2rgb(args));
|
|
}
|
|
|
|
|
|
function hsv2rgb(hsv) {
|
|
var h = hsv[0] / 60,
|
|
s = hsv[1] / 100,
|
|
v = hsv[2] / 100,
|
|
hi = Math.floor(h) % 6;
|
|
|
|
var f = h - Math.floor(h),
|
|
p = 255 * v * (1 - s),
|
|
q = 255 * v * (1 - (s * f)),
|
|
t = 255 * v * (1 - (s * (1 - f))),
|
|
v = 255 * v;
|
|
|
|
switch(hi) {
|
|
case 0:
|
|
return [v, t, p];
|
|
case 1:
|
|
return [q, v, p];
|
|
case 2:
|
|
return [p, v, t];
|
|
case 3:
|
|
return [p, q, v];
|
|
case 4:
|
|
return [t, p, v];
|
|
case 5:
|
|
return [v, p, q];
|
|
}
|
|
}
|
|
|
|
function hsv2hsl(hsv) {
|
|
var h = hsv[0],
|
|
s = hsv[1] / 100,
|
|
v = hsv[2] / 100,
|
|
sl, l;
|
|
|
|
l = (2 - s) * v;
|
|
sl = s * v;
|
|
sl /= (l <= 1) ? l : 2 - l;
|
|
sl = sl || 0;
|
|
l /= 2;
|
|
return [h, sl * 100, l * 100];
|
|
}
|
|
|
|
function hsv2hwb(args) {
|
|
return rgb2hwb(hsv2rgb(args))
|
|
}
|
|
|
|
function hsv2cmyk(args) {
|
|
return rgb2cmyk(hsv2rgb(args));
|
|
}
|
|
|
|
function hsv2keyword(args) {
|
|
return rgb2keyword(hsv2rgb(args));
|
|
}
|
|
|
|
// http://dev.w3.org/csswg/css-color/#hwb-to-rgb
|
|
function hwb2rgb(hwb) {
|
|
var h = hwb[0] / 360,
|
|
wh = hwb[1] / 100,
|
|
bl = hwb[2] / 100,
|
|
ratio = wh + bl,
|
|
i, v, f, n;
|
|
|
|
// wh + bl cant be > 1
|
|
if (ratio > 1) {
|
|
wh /= ratio;
|
|
bl /= ratio;
|
|
}
|
|
|
|
i = Math.floor(6 * h);
|
|
v = 1 - bl;
|
|
f = 6 * h - i;
|
|
if ((i & 0x01) != 0) {
|
|
f = 1 - f;
|
|
}
|
|
n = wh + f * (v - wh); // linear interpolation
|
|
|
|
switch (i) {
|
|
default:
|
|
case 6:
|
|
case 0: r = v; g = n; b = wh; break;
|
|
case 1: r = n; g = v; b = wh; break;
|
|
case 2: r = wh; g = v; b = n; break;
|
|
case 3: r = wh; g = n; b = v; break;
|
|
case 4: r = n; g = wh; b = v; break;
|
|
case 5: r = v; g = wh; b = n; break;
|
|
}
|
|
|
|
return [r * 255, g * 255, b * 255];
|
|
}
|
|
|
|
function hwb2hsl(args) {
|
|
return rgb2hsl(hwb2rgb(args));
|
|
}
|
|
|
|
function hwb2hsv(args) {
|
|
return rgb2hsv(hwb2rgb(args));
|
|
}
|
|
|
|
function hwb2cmyk(args) {
|
|
return rgb2cmyk(hwb2rgb(args));
|
|
}
|
|
|
|
function hwb2keyword(args) {
|
|
return rgb2keyword(hwb2rgb(args));
|
|
}
|
|
|
|
function cmyk2rgb(cmyk) {
|
|
var c = cmyk[0] / 100,
|
|
m = cmyk[1] / 100,
|
|
y = cmyk[2] / 100,
|
|
k = cmyk[3] / 100,
|
|
r, g, b;
|
|
|
|
r = 1 - Math.min(1, c * (1 - k) + k);
|
|
g = 1 - Math.min(1, m * (1 - k) + k);
|
|
b = 1 - Math.min(1, y * (1 - k) + k);
|
|
return [r * 255, g * 255, b * 255];
|
|
}
|
|
|
|
function cmyk2hsl(args) {
|
|
return rgb2hsl(cmyk2rgb(args));
|
|
}
|
|
|
|
function cmyk2hsv(args) {
|
|
return rgb2hsv(cmyk2rgb(args));
|
|
}
|
|
|
|
function cmyk2hwb(args) {
|
|
return rgb2hwb(cmyk2rgb(args));
|
|
}
|
|
|
|
function cmyk2keyword(args) {
|
|
return rgb2keyword(cmyk2rgb(args));
|
|
}
|
|
|
|
|
|
function xyz2rgb(xyz) {
|
|
var x = xyz[0] / 100,
|
|
y = xyz[1] / 100,
|
|
z = xyz[2] / 100,
|
|
r, g, b;
|
|
|
|
r = (x * 3.2406) + (y * -1.5372) + (z * -0.4986);
|
|
g = (x * -0.9689) + (y * 1.8758) + (z * 0.0415);
|
|
b = (x * 0.0557) + (y * -0.2040) + (z * 1.0570);
|
|
|
|
// assume sRGB
|
|
r = r > 0.0031308 ? ((1.055 * Math.pow(r, 1.0 / 2.4)) - 0.055)
|
|
: r = (r * 12.92);
|
|
|
|
g = g > 0.0031308 ? ((1.055 * Math.pow(g, 1.0 / 2.4)) - 0.055)
|
|
: g = (g * 12.92);
|
|
|
|
b = b > 0.0031308 ? ((1.055 * Math.pow(b, 1.0 / 2.4)) - 0.055)
|
|
: b = (b * 12.92);
|
|
|
|
r = Math.min(Math.max(0, r), 1);
|
|
g = Math.min(Math.max(0, g), 1);
|
|
b = Math.min(Math.max(0, b), 1);
|
|
|
|
return [r * 255, g * 255, b * 255];
|
|
}
|
|
|
|
function xyz2lab(xyz) {
|
|
var x = xyz[0],
|
|
y = xyz[1],
|
|
z = xyz[2],
|
|
l, a, b;
|
|
|
|
x /= 95.047;
|
|
y /= 100;
|
|
z /= 108.883;
|
|
|
|
x = x > 0.008856 ? Math.pow(x, 1/3) : (7.787 * x) + (16 / 116);
|
|
y = y > 0.008856 ? Math.pow(y, 1/3) : (7.787 * y) + (16 / 116);
|
|
z = z > 0.008856 ? Math.pow(z, 1/3) : (7.787 * z) + (16 / 116);
|
|
|
|
l = (116 * y) - 16;
|
|
a = 500 * (x - y);
|
|
b = 200 * (y - z);
|
|
|
|
return [l, a, b];
|
|
}
|
|
|
|
function xyz2lch(args) {
|
|
return lab2lch(xyz2lab(args));
|
|
}
|
|
|
|
function lab2xyz(lab) {
|
|
var l = lab[0],
|
|
a = lab[1],
|
|
b = lab[2],
|
|
x, y, z, y2;
|
|
|
|
if (l <= 8) {
|
|
y = (l * 100) / 903.3;
|
|
y2 = (7.787 * (y / 100)) + (16 / 116);
|
|
} else {
|
|
y = 100 * Math.pow((l + 16) / 116, 3);
|
|
y2 = Math.pow(y / 100, 1/3);
|
|
}
|
|
|
|
x = x / 95.047 <= 0.008856 ? x = (95.047 * ((a / 500) + y2 - (16 / 116))) / 7.787 : 95.047 * Math.pow((a / 500) + y2, 3);
|
|
|
|
z = z / 108.883 <= 0.008859 ? z = (108.883 * (y2 - (b / 200) - (16 / 116))) / 7.787 : 108.883 * Math.pow(y2 - (b / 200), 3);
|
|
|
|
return [x, y, z];
|
|
}
|
|
|
|
function lab2lch(lab) {
|
|
var l = lab[0],
|
|
a = lab[1],
|
|
b = lab[2],
|
|
hr, h, c;
|
|
|
|
hr = Math.atan2(b, a);
|
|
h = hr * 360 / 2 / Math.PI;
|
|
if (h < 0) {
|
|
h += 360;
|
|
}
|
|
c = Math.sqrt(a * a + b * b);
|
|
return [l, c, h];
|
|
}
|
|
|
|
function lab2rgb(args) {
|
|
return xyz2rgb(lab2xyz(args));
|
|
}
|
|
|
|
function lch2lab(lch) {
|
|
var l = lch[0],
|
|
c = lch[1],
|
|
h = lch[2],
|
|
a, b, hr;
|
|
|
|
hr = h / 360 * 2 * Math.PI;
|
|
a = c * Math.cos(hr);
|
|
b = c * Math.sin(hr);
|
|
return [l, a, b];
|
|
}
|
|
|
|
function lch2xyz(args) {
|
|
return lab2xyz(lch2lab(args));
|
|
}
|
|
|
|
function lch2rgb(args) {
|
|
return lab2rgb(lch2lab(args));
|
|
}
|
|
|
|
function keyword2rgb(keyword) {
|
|
return cssKeywords[keyword];
|
|
}
|
|
|
|
function keyword2hsl(args) {
|
|
return rgb2hsl(keyword2rgb(args));
|
|
}
|
|
|
|
function keyword2hsv(args) {
|
|
return rgb2hsv(keyword2rgb(args));
|
|
}
|
|
|
|
function keyword2hwb(args) {
|
|
return rgb2hwb(keyword2rgb(args));
|
|
}
|
|
|
|
function keyword2cmyk(args) {
|
|
return rgb2cmyk(keyword2rgb(args));
|
|
}
|
|
|
|
function keyword2lab(args) {
|
|
return rgb2lab(keyword2rgb(args));
|
|
}
|
|
|
|
function keyword2xyz(args) {
|
|
return rgb2xyz(keyword2rgb(args));
|
|
}
|
|
|
|
var cssKeywords = {
|
|
aliceblue: [240,248,255],
|
|
antiquewhite: [250,235,215],
|
|
aqua: [0,255,255],
|
|
aquamarine: [127,255,212],
|
|
azure: [240,255,255],
|
|
beige: [245,245,220],
|
|
bisque: [255,228,196],
|
|
black: [0,0,0],
|
|
blanchedalmond: [255,235,205],
|
|
blue: [0,0,255],
|
|
blueviolet: [138,43,226],
|
|
brown: [165,42,42],
|
|
burlywood: [222,184,135],
|
|
cadetblue: [95,158,160],
|
|
chartreuse: [127,255,0],
|
|
chocolate: [210,105,30],
|
|
coral: [255,127,80],
|
|
cornflowerblue: [100,149,237],
|
|
cornsilk: [255,248,220],
|
|
crimson: [220,20,60],
|
|
cyan: [0,255,255],
|
|
darkblue: [0,0,139],
|
|
darkcyan: [0,139,139],
|
|
darkgoldenrod: [184,134,11],
|
|
darkgray: [169,169,169],
|
|
darkgreen: [0,100,0],
|
|
darkgrey: [169,169,169],
|
|
darkkhaki: [189,183,107],
|
|
darkmagenta: [139,0,139],
|
|
darkolivegreen: [85,107,47],
|
|
darkorange: [255,140,0],
|
|
darkorchid: [153,50,204],
|
|
darkred: [139,0,0],
|
|
darksalmon: [233,150,122],
|
|
darkseagreen: [143,188,143],
|
|
darkslateblue: [72,61,139],
|
|
darkslategray: [47,79,79],
|
|
darkslategrey: [47,79,79],
|
|
darkturquoise: [0,206,209],
|
|
darkviolet: [148,0,211],
|
|
deeppink: [255,20,147],
|
|
deepskyblue: [0,191,255],
|
|
dimgray: [105,105,105],
|
|
dimgrey: [105,105,105],
|
|
dodgerblue: [30,144,255],
|
|
firebrick: [178,34,34],
|
|
floralwhite: [255,250,240],
|
|
forestgreen: [34,139,34],
|
|
fuchsia: [255,0,255],
|
|
gainsboro: [220,220,220],
|
|
ghostwhite: [248,248,255],
|
|
gold: [255,215,0],
|
|
goldenrod: [218,165,32],
|
|
gray: [128,128,128],
|
|
green: [0,128,0],
|
|
greenyellow: [173,255,47],
|
|
grey: [128,128,128],
|
|
honeydew: [240,255,240],
|
|
hotpink: [255,105,180],
|
|
indianred: [205,92,92],
|
|
indigo: [75,0,130],
|
|
ivory: [255,255,240],
|
|
khaki: [240,230,140],
|
|
lavender: [230,230,250],
|
|
lavenderblush: [255,240,245],
|
|
lawngreen: [124,252,0],
|
|
lemonchiffon: [255,250,205],
|
|
lightblue: [173,216,230],
|
|
lightcoral: [240,128,128],
|
|
lightcyan: [224,255,255],
|
|
lightgoldenrodyellow: [250,250,210],
|
|
lightgray: [211,211,211],
|
|
lightgreen: [144,238,144],
|
|
lightgrey: [211,211,211],
|
|
lightpink: [255,182,193],
|
|
lightsalmon: [255,160,122],
|
|
lightseagreen: [32,178,170],
|
|
lightskyblue: [135,206,250],
|
|
lightslategray: [119,136,153],
|
|
lightslategrey: [119,136,153],
|
|
lightsteelblue: [176,196,222],
|
|
lightyellow: [255,255,224],
|
|
lime: [0,255,0],
|
|
limegreen: [50,205,50],
|
|
linen: [250,240,230],
|
|
magenta: [255,0,255],
|
|
maroon: [128,0,0],
|
|
mediumaquamarine: [102,205,170],
|
|
mediumblue: [0,0,205],
|
|
mediumorchid: [186,85,211],
|
|
mediumpurple: [147,112,219],
|
|
mediumseagreen: [60,179,113],
|
|
mediumslateblue: [123,104,238],
|
|
mediumspringgreen: [0,250,154],
|
|
mediumturquoise: [72,209,204],
|
|
mediumvioletred: [199,21,133],
|
|
midnightblue: [25,25,112],
|
|
mintcream: [245,255,250],
|
|
mistyrose: [255,228,225],
|
|
moccasin: [255,228,181],
|
|
navajowhite: [255,222,173],
|
|
navy: [0,0,128],
|
|
oldlace: [253,245,230],
|
|
olive: [128,128,0],
|
|
olivedrab: [107,142,35],
|
|
orange: [255,165,0],
|
|
orangered: [255,69,0],
|
|
orchid: [218,112,214],
|
|
palegoldenrod: [238,232,170],
|
|
palegreen: [152,251,152],
|
|
paleturquoise: [175,238,238],
|
|
palevioletred: [219,112,147],
|
|
papayawhip: [255,239,213],
|
|
peachpuff: [255,218,185],
|
|
peru: [205,133,63],
|
|
pink: [255,192,203],
|
|
plum: [221,160,221],
|
|
powderblue: [176,224,230],
|
|
purple: [128,0,128],
|
|
rebeccapurple: [102, 51, 153],
|
|
red: [255,0,0],
|
|
rosybrown: [188,143,143],
|
|
royalblue: [65,105,225],
|
|
saddlebrown: [139,69,19],
|
|
salmon: [250,128,114],
|
|
sandybrown: [244,164,96],
|
|
seagreen: [46,139,87],
|
|
seashell: [255,245,238],
|
|
sienna: [160,82,45],
|
|
silver: [192,192,192],
|
|
skyblue: [135,206,235],
|
|
slateblue: [106,90,205],
|
|
slategray: [112,128,144],
|
|
slategrey: [112,128,144],
|
|
snow: [255,250,250],
|
|
springgreen: [0,255,127],
|
|
steelblue: [70,130,180],
|
|
tan: [210,180,140],
|
|
teal: [0,128,128],
|
|
thistle: [216,191,216],
|
|
tomato: [255,99,71],
|
|
turquoise: [64,224,208],
|
|
violet: [238,130,238],
|
|
wheat: [245,222,179],
|
|
white: [255,255,255],
|
|
whitesmoke: [245,245,245],
|
|
yellow: [255,255,0],
|
|
yellowgreen: [154,205,50]
|
|
};
|
|
|
|
var reverseKeywords = {};
|
|
for (var key in cssKeywords) {
|
|
reverseKeywords[JSON.stringify(cssKeywords[key])] = key;
|
|
}
|
|
|
|
},{}],5:[function(require,module,exports){
|
|
var conversions = require(4);
|
|
|
|
var convert = function() {
|
|
return new Converter();
|
|
}
|
|
|
|
for (var func in conversions) {
|
|
// export Raw versions
|
|
convert[func + "Raw"] = (function(func) {
|
|
// accept array or plain args
|
|
return function(arg) {
|
|
if (typeof arg == "number")
|
|
arg = Array.prototype.slice.call(arguments);
|
|
return conversions[func](arg);
|
|
}
|
|
})(func);
|
|
|
|
var pair = /(\w+)2(\w+)/.exec(func),
|
|
from = pair[1],
|
|
to = pair[2];
|
|
|
|
// export rgb2hsl and ["rgb"]["hsl"]
|
|
convert[from] = convert[from] || {};
|
|
|
|
convert[from][to] = convert[func] = (function(func) {
|
|
return function(arg) {
|
|
if (typeof arg == "number")
|
|
arg = Array.prototype.slice.call(arguments);
|
|
|
|
var val = conversions[func](arg);
|
|
if (typeof val == "string" || val === undefined)
|
|
return val; // keyword
|
|
|
|
for (var i = 0; i < val.length; i++)
|
|
val[i] = Math.round(val[i]);
|
|
return val;
|
|
}
|
|
})(func);
|
|
}
|
|
|
|
|
|
/* Converter does lazy conversion and caching */
|
|
var Converter = function() {
|
|
this.convs = {};
|
|
};
|
|
|
|
/* Either get the values for a space or
|
|
set the values for a space, depending on args */
|
|
Converter.prototype.routeSpace = function(space, args) {
|
|
var values = args[0];
|
|
if (values === undefined) {
|
|
// color.rgb()
|
|
return this.getValues(space);
|
|
}
|
|
// color.rgb(10, 10, 10)
|
|
if (typeof values == "number") {
|
|
values = Array.prototype.slice.call(args);
|
|
}
|
|
|
|
return this.setValues(space, values);
|
|
};
|
|
|
|
/* Set the values for a space, invalidating cache */
|
|
Converter.prototype.setValues = function(space, values) {
|
|
this.space = space;
|
|
this.convs = {};
|
|
this.convs[space] = values;
|
|
return this;
|
|
};
|
|
|
|
/* Get the values for a space. If there's already
|
|
a conversion for the space, fetch it, otherwise
|
|
compute it */
|
|
Converter.prototype.getValues = function(space) {
|
|
var vals = this.convs[space];
|
|
if (!vals) {
|
|
var fspace = this.space,
|
|
from = this.convs[fspace];
|
|
vals = convert[fspace][space](from);
|
|
|
|
this.convs[space] = vals;
|
|
}
|
|
return vals;
|
|
};
|
|
|
|
["rgb", "hsl", "hsv", "cmyk", "keyword"].forEach(function(space) {
|
|
Converter.prototype[space] = function(vals) {
|
|
return this.routeSpace(space, arguments);
|
|
}
|
|
});
|
|
|
|
module.exports = convert;
|
|
},{"4":4}],6:[function(require,module,exports){
|
|
module.exports = {
|
|
"aliceblue": [240, 248, 255],
|
|
"antiquewhite": [250, 235, 215],
|
|
"aqua": [0, 255, 255],
|
|
"aquamarine": [127, 255, 212],
|
|
"azure": [240, 255, 255],
|
|
"beige": [245, 245, 220],
|
|
"bisque": [255, 228, 196],
|
|
"black": [0, 0, 0],
|
|
"blanchedalmond": [255, 235, 205],
|
|
"blue": [0, 0, 255],
|
|
"blueviolet": [138, 43, 226],
|
|
"brown": [165, 42, 42],
|
|
"burlywood": [222, 184, 135],
|
|
"cadetblue": [95, 158, 160],
|
|
"chartreuse": [127, 255, 0],
|
|
"chocolate": [210, 105, 30],
|
|
"coral": [255, 127, 80],
|
|
"cornflowerblue": [100, 149, 237],
|
|
"cornsilk": [255, 248, 220],
|
|
"crimson": [220, 20, 60],
|
|
"cyan": [0, 255, 255],
|
|
"darkblue": [0, 0, 139],
|
|
"darkcyan": [0, 139, 139],
|
|
"darkgoldenrod": [184, 134, 11],
|
|
"darkgray": [169, 169, 169],
|
|
"darkgreen": [0, 100, 0],
|
|
"darkgrey": [169, 169, 169],
|
|
"darkkhaki": [189, 183, 107],
|
|
"darkmagenta": [139, 0, 139],
|
|
"darkolivegreen": [85, 107, 47],
|
|
"darkorange": [255, 140, 0],
|
|
"darkorchid": [153, 50, 204],
|
|
"darkred": [139, 0, 0],
|
|
"darksalmon": [233, 150, 122],
|
|
"darkseagreen": [143, 188, 143],
|
|
"darkslateblue": [72, 61, 139],
|
|
"darkslategray": [47, 79, 79],
|
|
"darkslategrey": [47, 79, 79],
|
|
"darkturquoise": [0, 206, 209],
|
|
"darkviolet": [148, 0, 211],
|
|
"deeppink": [255, 20, 147],
|
|
"deepskyblue": [0, 191, 255],
|
|
"dimgray": [105, 105, 105],
|
|
"dimgrey": [105, 105, 105],
|
|
"dodgerblue": [30, 144, 255],
|
|
"firebrick": [178, 34, 34],
|
|
"floralwhite": [255, 250, 240],
|
|
"forestgreen": [34, 139, 34],
|
|
"fuchsia": [255, 0, 255],
|
|
"gainsboro": [220, 220, 220],
|
|
"ghostwhite": [248, 248, 255],
|
|
"gold": [255, 215, 0],
|
|
"goldenrod": [218, 165, 32],
|
|
"gray": [128, 128, 128],
|
|
"green": [0, 128, 0],
|
|
"greenyellow": [173, 255, 47],
|
|
"grey": [128, 128, 128],
|
|
"honeydew": [240, 255, 240],
|
|
"hotpink": [255, 105, 180],
|
|
"indianred": [205, 92, 92],
|
|
"indigo": [75, 0, 130],
|
|
"ivory": [255, 255, 240],
|
|
"khaki": [240, 230, 140],
|
|
"lavender": [230, 230, 250],
|
|
"lavenderblush": [255, 240, 245],
|
|
"lawngreen": [124, 252, 0],
|
|
"lemonchiffon": [255, 250, 205],
|
|
"lightblue": [173, 216, 230],
|
|
"lightcoral": [240, 128, 128],
|
|
"lightcyan": [224, 255, 255],
|
|
"lightgoldenrodyellow": [250, 250, 210],
|
|
"lightgray": [211, 211, 211],
|
|
"lightgreen": [144, 238, 144],
|
|
"lightgrey": [211, 211, 211],
|
|
"lightpink": [255, 182, 193],
|
|
"lightsalmon": [255, 160, 122],
|
|
"lightseagreen": [32, 178, 170],
|
|
"lightskyblue": [135, 206, 250],
|
|
"lightslategray": [119, 136, 153],
|
|
"lightslategrey": [119, 136, 153],
|
|
"lightsteelblue": [176, 196, 222],
|
|
"lightyellow": [255, 255, 224],
|
|
"lime": [0, 255, 0],
|
|
"limegreen": [50, 205, 50],
|
|
"linen": [250, 240, 230],
|
|
"magenta": [255, 0, 255],
|
|
"maroon": [128, 0, 0],
|
|
"mediumaquamarine": [102, 205, 170],
|
|
"mediumblue": [0, 0, 205],
|
|
"mediumorchid": [186, 85, 211],
|
|
"mediumpurple": [147, 112, 219],
|
|
"mediumseagreen": [60, 179, 113],
|
|
"mediumslateblue": [123, 104, 238],
|
|
"mediumspringgreen": [0, 250, 154],
|
|
"mediumturquoise": [72, 209, 204],
|
|
"mediumvioletred": [199, 21, 133],
|
|
"midnightblue": [25, 25, 112],
|
|
"mintcream": [245, 255, 250],
|
|
"mistyrose": [255, 228, 225],
|
|
"moccasin": [255, 228, 181],
|
|
"navajowhite": [255, 222, 173],
|
|
"navy": [0, 0, 128],
|
|
"oldlace": [253, 245, 230],
|
|
"olive": [128, 128, 0],
|
|
"olivedrab": [107, 142, 35],
|
|
"orange": [255, 165, 0],
|
|
"orangered": [255, 69, 0],
|
|
"orchid": [218, 112, 214],
|
|
"palegoldenrod": [238, 232, 170],
|
|
"palegreen": [152, 251, 152],
|
|
"paleturquoise": [175, 238, 238],
|
|
"palevioletred": [219, 112, 147],
|
|
"papayawhip": [255, 239, 213],
|
|
"peachpuff": [255, 218, 185],
|
|
"peru": [205, 133, 63],
|
|
"pink": [255, 192, 203],
|
|
"plum": [221, 160, 221],
|
|
"powderblue": [176, 224, 230],
|
|
"purple": [128, 0, 128],
|
|
"rebeccapurple": [102, 51, 153],
|
|
"red": [255, 0, 0],
|
|
"rosybrown": [188, 143, 143],
|
|
"royalblue": [65, 105, 225],
|
|
"saddlebrown": [139, 69, 19],
|
|
"salmon": [250, 128, 114],
|
|
"sandybrown": [244, 164, 96],
|
|
"seagreen": [46, 139, 87],
|
|
"seashell": [255, 245, 238],
|
|
"sienna": [160, 82, 45],
|
|
"silver": [192, 192, 192],
|
|
"skyblue": [135, 206, 235],
|
|
"slateblue": [106, 90, 205],
|
|
"slategray": [112, 128, 144],
|
|
"slategrey": [112, 128, 144],
|
|
"snow": [255, 250, 250],
|
|
"springgreen": [0, 255, 127],
|
|
"steelblue": [70, 130, 180],
|
|
"tan": [210, 180, 140],
|
|
"teal": [0, 128, 128],
|
|
"thistle": [216, 191, 216],
|
|
"tomato": [255, 99, 71],
|
|
"turquoise": [64, 224, 208],
|
|
"violet": [238, 130, 238],
|
|
"wheat": [245, 222, 179],
|
|
"white": [255, 255, 255],
|
|
"whitesmoke": [245, 245, 245],
|
|
"yellow": [255, 255, 0],
|
|
"yellowgreen": [154, 205, 50]
|
|
};
|
|
},{}],7:[function(require,module,exports){
|
|
/**
|
|
* @namespace Chart
|
|
*/
|
|
var Chart = require(27)();
|
|
|
|
require(26)(Chart);
|
|
require(22)(Chart);
|
|
require(25)(Chart);
|
|
require(21)(Chart);
|
|
require(23)(Chart);
|
|
require(24)(Chart);
|
|
require(28)(Chart);
|
|
require(32)(Chart);
|
|
require(30)(Chart);
|
|
require(31)(Chart);
|
|
require(33)(Chart);
|
|
require(29)(Chart);
|
|
require(34)(Chart);
|
|
|
|
require(35)(Chart);
|
|
require(36)(Chart);
|
|
require(37)(Chart);
|
|
require(38)(Chart);
|
|
|
|
require(41)(Chart);
|
|
require(39)(Chart);
|
|
require(40)(Chart);
|
|
require(42)(Chart);
|
|
require(43)(Chart);
|
|
require(44)(Chart);
|
|
|
|
// Controllers must be loaded after elements
|
|
// See Chart.core.datasetController.dataElementType
|
|
require(15)(Chart);
|
|
require(16)(Chart);
|
|
require(17)(Chart);
|
|
require(18)(Chart);
|
|
require(19)(Chart);
|
|
require(20)(Chart);
|
|
|
|
require(8)(Chart);
|
|
require(9)(Chart);
|
|
require(10)(Chart);
|
|
require(11)(Chart);
|
|
require(12)(Chart);
|
|
require(13)(Chart);
|
|
require(14)(Chart);
|
|
|
|
window.Chart = module.exports = Chart;
|
|
|
|
},{"10":10,"11":11,"12":12,"13":13,"14":14,"15":15,"16":16,"17":17,"18":18,"19":19,"20":20,"21":21,"22":22,"23":23,"24":24,"25":25,"26":26,"27":27,"28":28,"29":29,"30":30,"31":31,"32":32,"33":33,"34":34,"35":35,"36":36,"37":37,"38":38,"39":39,"40":40,"41":41,"42":42,"43":43,"44":44,"8":8,"9":9}],8:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
Chart.Bar = function(context, config) {
|
|
config.type = 'bar';
|
|
|
|
return new Chart(context, config);
|
|
};
|
|
|
|
};
|
|
},{}],9:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
Chart.Bubble = function(context, config) {
|
|
config.type = 'bubble';
|
|
return new Chart(context, config);
|
|
};
|
|
|
|
};
|
|
},{}],10:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
Chart.Doughnut = function(context, config) {
|
|
config.type = 'doughnut';
|
|
|
|
return new Chart(context, config);
|
|
};
|
|
|
|
};
|
|
},{}],11:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
Chart.Line = function(context, config) {
|
|
config.type = 'line';
|
|
|
|
return new Chart(context, config);
|
|
};
|
|
|
|
};
|
|
},{}],12:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
Chart.PolarArea = function(context, config) {
|
|
config.type = 'polarArea';
|
|
|
|
return new Chart(context, config);
|
|
};
|
|
|
|
};
|
|
},{}],13:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
Chart.Radar = function(context, config) {
|
|
config.options = Chart.helpers.configMerge({ aspectRatio: 1 }, config.options);
|
|
config.type = 'radar';
|
|
|
|
return new Chart(context, config);
|
|
};
|
|
|
|
};
|
|
|
|
},{}],14:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var defaultConfig = {
|
|
hover: {
|
|
mode: 'single'
|
|
},
|
|
|
|
scales: {
|
|
xAxes: [{
|
|
type: "linear", // scatter should not use a category axis
|
|
position: "bottom",
|
|
id: "x-axis-1" // need an ID so datasets can reference the scale
|
|
}],
|
|
yAxes: [{
|
|
type: "linear",
|
|
position: "left",
|
|
id: "y-axis-1"
|
|
}]
|
|
},
|
|
|
|
tooltips: {
|
|
callbacks: {
|
|
title: function() {
|
|
// Title doesn't make sense for scatter since we format the data as a point
|
|
return '';
|
|
},
|
|
label: function(tooltipItem) {
|
|
return '(' + tooltipItem.xLabel + ', ' + tooltipItem.yLabel + ')';
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
// Register the default config for this type
|
|
Chart.defaults.scatter = defaultConfig;
|
|
|
|
// Scatter charts use line controllers
|
|
Chart.controllers.scatter = Chart.controllers.line;
|
|
|
|
Chart.Scatter = function(context, config) {
|
|
config.type = 'scatter';
|
|
return new Chart(context, config);
|
|
};
|
|
|
|
};
|
|
},{}],15:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
|
|
Chart.defaults.bar = {
|
|
hover: {
|
|
mode: "label"
|
|
},
|
|
|
|
scales: {
|
|
xAxes: [{
|
|
type: "category",
|
|
|
|
// Specific to Bar Controller
|
|
categoryPercentage: 0.8,
|
|
barPercentage: 0.9,
|
|
|
|
// grid line settings
|
|
gridLines: {
|
|
offsetGridLines: true
|
|
}
|
|
}],
|
|
yAxes: [{
|
|
type: "linear"
|
|
}]
|
|
}
|
|
};
|
|
|
|
Chart.controllers.bar = Chart.DatasetController.extend({
|
|
|
|
dataElementType: Chart.elements.Rectangle,
|
|
|
|
initialize: function(chart, datasetIndex) {
|
|
Chart.DatasetController.prototype.initialize.call(this, chart, datasetIndex);
|
|
|
|
// Use this to indicate that this is a bar dataset.
|
|
this.getMeta().bar = true;
|
|
},
|
|
|
|
// Get the number of datasets that display bars. We use this to correctly calculate the bar width
|
|
getBarCount: function() {
|
|
var me = this;
|
|
var barCount = 0;
|
|
helpers.each(me.chart.data.datasets, function(dataset, datasetIndex) {
|
|
var meta = me.chart.getDatasetMeta(datasetIndex);
|
|
if (meta.bar && me.chart.isDatasetVisible(datasetIndex)) {
|
|
++barCount;
|
|
}
|
|
}, me);
|
|
return barCount;
|
|
},
|
|
|
|
update: function(reset) {
|
|
var me = this;
|
|
helpers.each(me.getMeta().data, function(rectangle, index) {
|
|
me.updateElement(rectangle, index, reset);
|
|
}, me);
|
|
},
|
|
|
|
updateElement: function(rectangle, index, reset) {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var xScale = me.getScaleForId(meta.xAxisID);
|
|
var yScale = me.getScaleForId(meta.yAxisID);
|
|
var scaleBase = yScale.getBasePixel();
|
|
var rectangleElementOptions = me.chart.options.elements.rectangle;
|
|
var custom = rectangle.custom || {};
|
|
var dataset = me.getDataset();
|
|
|
|
helpers.extend(rectangle, {
|
|
// Utility
|
|
_xScale: xScale,
|
|
_yScale: yScale,
|
|
_datasetIndex: me.index,
|
|
_index: index,
|
|
|
|
// Desired view properties
|
|
_model: {
|
|
x: me.calculateBarX(index, me.index),
|
|
y: reset ? scaleBase : me.calculateBarY(index, me.index),
|
|
|
|
// Tooltip
|
|
label: me.chart.data.labels[index],
|
|
datasetLabel: dataset.label,
|
|
|
|
// Appearance
|
|
base: reset ? scaleBase : me.calculateBarBase(me.index, index),
|
|
width: me.calculateBarWidth(index),
|
|
backgroundColor: custom.backgroundColor ? custom.backgroundColor : helpers.getValueAtIndexOrDefault(dataset.backgroundColor, index, rectangleElementOptions.backgroundColor),
|
|
borderSkipped: custom.borderSkipped ? custom.borderSkipped : rectangleElementOptions.borderSkipped,
|
|
borderColor: custom.borderColor ? custom.borderColor : helpers.getValueAtIndexOrDefault(dataset.borderColor, index, rectangleElementOptions.borderColor),
|
|
borderWidth: custom.borderWidth ? custom.borderWidth : helpers.getValueAtIndexOrDefault(dataset.borderWidth, index, rectangleElementOptions.borderWidth)
|
|
}
|
|
});
|
|
rectangle.pivot();
|
|
},
|
|
|
|
calculateBarBase: function(datasetIndex, index) {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var yScale = me.getScaleForId(meta.yAxisID);
|
|
var base = 0;
|
|
|
|
if (yScale.options.stacked) {
|
|
var chart = me.chart;
|
|
var datasets = chart.data.datasets;
|
|
var value = Number(datasets[datasetIndex].data[index]);
|
|
|
|
for (var i = 0; i < datasetIndex; i++) {
|
|
var currentDs = datasets[i];
|
|
var currentDsMeta = chart.getDatasetMeta(i);
|
|
if (currentDsMeta.bar && currentDsMeta.yAxisID === yScale.id && chart.isDatasetVisible(i)) {
|
|
var currentVal = Number(currentDs.data[index]);
|
|
base += value < 0 ? Math.min(currentVal, 0) : Math.max(currentVal, 0);
|
|
}
|
|
}
|
|
|
|
return yScale.getPixelForValue(base);
|
|
}
|
|
|
|
return yScale.getBasePixel();
|
|
},
|
|
|
|
getRuler: function(index) {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var xScale = me.getScaleForId(meta.xAxisID);
|
|
var datasetCount = me.getBarCount();
|
|
|
|
var tickWidth;
|
|
|
|
if (xScale.options.type === 'category') {
|
|
tickWidth = xScale.getPixelForTick(index + 1) - xScale.getPixelForTick(index);
|
|
} else {
|
|
// Average width
|
|
tickWidth = xScale.width / xScale.ticks.length;
|
|
}
|
|
var categoryWidth = tickWidth * xScale.options.categoryPercentage;
|
|
var categorySpacing = (tickWidth - (tickWidth * xScale.options.categoryPercentage)) / 2;
|
|
var fullBarWidth = categoryWidth / datasetCount;
|
|
|
|
if (xScale.ticks.length !== me.chart.data.labels.length) {
|
|
var perc = xScale.ticks.length / me.chart.data.labels.length;
|
|
fullBarWidth = fullBarWidth * perc;
|
|
}
|
|
|
|
var barWidth = fullBarWidth * xScale.options.barPercentage;
|
|
var barSpacing = fullBarWidth - (fullBarWidth * xScale.options.barPercentage);
|
|
|
|
return {
|
|
datasetCount: datasetCount,
|
|
tickWidth: tickWidth,
|
|
categoryWidth: categoryWidth,
|
|
categorySpacing: categorySpacing,
|
|
fullBarWidth: fullBarWidth,
|
|
barWidth: barWidth,
|
|
barSpacing: barSpacing
|
|
};
|
|
},
|
|
|
|
calculateBarWidth: function(index) {
|
|
var xScale = this.getScaleForId(this.getMeta().xAxisID);
|
|
if (xScale.options.barThickness) {
|
|
return xScale.options.barThickness;
|
|
}
|
|
var ruler = this.getRuler(index);
|
|
return xScale.options.stacked ? ruler.categoryWidth : ruler.barWidth;
|
|
},
|
|
|
|
// Get bar index from the given dataset index accounting for the fact that not all bars are visible
|
|
getBarIndex: function(datasetIndex) {
|
|
var barIndex = 0;
|
|
var meta, j;
|
|
|
|
for (j = 0; j < datasetIndex; ++j) {
|
|
meta = this.chart.getDatasetMeta(j);
|
|
if (meta.bar && this.chart.isDatasetVisible(j)) {
|
|
++barIndex;
|
|
}
|
|
}
|
|
|
|
return barIndex;
|
|
},
|
|
|
|
calculateBarX: function(index, datasetIndex) {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var xScale = me.getScaleForId(meta.xAxisID);
|
|
var barIndex = me.getBarIndex(datasetIndex);
|
|
|
|
var ruler = me.getRuler(index);
|
|
var leftTick = xScale.getPixelForValue(null, index, datasetIndex, me.chart.isCombo);
|
|
leftTick -= me.chart.isCombo ? (ruler.tickWidth / 2) : 0;
|
|
|
|
if (xScale.options.stacked) {
|
|
return leftTick + (ruler.categoryWidth / 2) + ruler.categorySpacing;
|
|
}
|
|
|
|
return leftTick +
|
|
(ruler.barWidth / 2) +
|
|
ruler.categorySpacing +
|
|
(ruler.barWidth * barIndex) +
|
|
(ruler.barSpacing / 2) +
|
|
(ruler.barSpacing * barIndex);
|
|
},
|
|
|
|
calculateBarY: function(index, datasetIndex) {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var yScale = me.getScaleForId(meta.yAxisID);
|
|
var value = Number(me.getDataset().data[index]);
|
|
|
|
if (yScale.options.stacked) {
|
|
|
|
var sumPos = 0,
|
|
sumNeg = 0;
|
|
|
|
for (var i = 0; i < datasetIndex; i++) {
|
|
var ds = me.chart.data.datasets[i];
|
|
var dsMeta = me.chart.getDatasetMeta(i);
|
|
if (dsMeta.bar && dsMeta.yAxisID === yScale.id && me.chart.isDatasetVisible(i)) {
|
|
var stackedVal = Number(ds.data[index]);
|
|
if (stackedVal < 0) {
|
|
sumNeg += stackedVal || 0;
|
|
} else {
|
|
sumPos += stackedVal || 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (value < 0) {
|
|
return yScale.getPixelForValue(sumNeg + value);
|
|
} else {
|
|
return yScale.getPixelForValue(sumPos + value);
|
|
}
|
|
}
|
|
|
|
return yScale.getPixelForValue(value);
|
|
},
|
|
|
|
draw: function(ease) {
|
|
var me = this;
|
|
var easingDecimal = ease || 1;
|
|
helpers.each(me.getMeta().data, function(rectangle, index) {
|
|
var d = me.getDataset().data[index];
|
|
if (d !== null && d !== undefined && !isNaN(d)) {
|
|
rectangle.transition(easingDecimal).draw();
|
|
}
|
|
}, me);
|
|
},
|
|
|
|
setHoverStyle: function(rectangle) {
|
|
var dataset = this.chart.data.datasets[rectangle._datasetIndex];
|
|
var index = rectangle._index;
|
|
|
|
var custom = rectangle.custom || {};
|
|
var model = rectangle._model;
|
|
model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.hoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor));
|
|
model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.hoverBorderColor, index, helpers.getHoverColor(model.borderColor));
|
|
model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.hoverBorderWidth, index, model.borderWidth);
|
|
},
|
|
|
|
removeHoverStyle: function(rectangle) {
|
|
var dataset = this.chart.data.datasets[rectangle._datasetIndex];
|
|
var index = rectangle._index;
|
|
var custom = rectangle.custom || {};
|
|
var model = rectangle._model;
|
|
var rectangleElementOptions = this.chart.options.elements.rectangle;
|
|
|
|
model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : helpers.getValueAtIndexOrDefault(dataset.backgroundColor, index, rectangleElementOptions.backgroundColor);
|
|
model.borderColor = custom.borderColor ? custom.borderColor : helpers.getValueAtIndexOrDefault(dataset.borderColor, index, rectangleElementOptions.borderColor);
|
|
model.borderWidth = custom.borderWidth ? custom.borderWidth : helpers.getValueAtIndexOrDefault(dataset.borderWidth, index, rectangleElementOptions.borderWidth);
|
|
}
|
|
|
|
});
|
|
|
|
|
|
// including horizontalBar in the bar file, instead of a file of its own
|
|
// it extends bar (like pie extends doughnut)
|
|
Chart.defaults.horizontalBar = {
|
|
hover: {
|
|
mode: "label"
|
|
},
|
|
|
|
scales: {
|
|
xAxes: [{
|
|
type: "linear",
|
|
position: "bottom"
|
|
}],
|
|
yAxes: [{
|
|
position: "left",
|
|
type: "category",
|
|
|
|
// Specific to Horizontal Bar Controller
|
|
categoryPercentage: 0.8,
|
|
barPercentage: 0.9,
|
|
|
|
// grid line settings
|
|
gridLines: {
|
|
offsetGridLines: true
|
|
}
|
|
}]
|
|
},
|
|
elements: {
|
|
rectangle: {
|
|
borderSkipped: 'left'
|
|
}
|
|
},
|
|
tooltips: {
|
|
callbacks: {
|
|
title: function(tooltipItems, data) {
|
|
// Pick first xLabel for now
|
|
var title = '';
|
|
|
|
if (tooltipItems.length > 0) {
|
|
if (tooltipItems[0].yLabel) {
|
|
title = tooltipItems[0].yLabel;
|
|
} else if (data.labels.length > 0 && tooltipItems[0].index < data.labels.length) {
|
|
title = data.labels[tooltipItems[0].index];
|
|
}
|
|
}
|
|
|
|
return title;
|
|
},
|
|
label: function(tooltipItem, data) {
|
|
var datasetLabel = data.datasets[tooltipItem.datasetIndex].label || '';
|
|
return datasetLabel + ': ' + tooltipItem.xLabel;
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
Chart.controllers.horizontalBar = Chart.controllers.bar.extend({
|
|
updateElement: function(rectangle, index, reset) {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var xScale = me.getScaleForId(meta.xAxisID);
|
|
var yScale = me.getScaleForId(meta.yAxisID);
|
|
var scaleBase = xScale.getBasePixel();
|
|
var custom = rectangle.custom || {};
|
|
var dataset = me.getDataset();
|
|
var rectangleElementOptions = me.chart.options.elements.rectangle;
|
|
|
|
helpers.extend(rectangle, {
|
|
// Utility
|
|
_xScale: xScale,
|
|
_yScale: yScale,
|
|
_datasetIndex: me.index,
|
|
_index: index,
|
|
|
|
// Desired view properties
|
|
_model: {
|
|
x: reset ? scaleBase : me.calculateBarX(index, me.index),
|
|
y: me.calculateBarY(index, me.index),
|
|
|
|
// Tooltip
|
|
label: me.chart.data.labels[index],
|
|
datasetLabel: dataset.label,
|
|
|
|
// Appearance
|
|
base: reset ? scaleBase : me.calculateBarBase(me.index, index),
|
|
height: me.calculateBarHeight(index),
|
|
backgroundColor: custom.backgroundColor ? custom.backgroundColor : helpers.getValueAtIndexOrDefault(dataset.backgroundColor, index, rectangleElementOptions.backgroundColor),
|
|
borderSkipped: custom.borderSkipped ? custom.borderSkipped : rectangleElementOptions.borderSkipped,
|
|
borderColor: custom.borderColor ? custom.borderColor : helpers.getValueAtIndexOrDefault(dataset.borderColor, index, rectangleElementOptions.borderColor),
|
|
borderWidth: custom.borderWidth ? custom.borderWidth : helpers.getValueAtIndexOrDefault(dataset.borderWidth, index, rectangleElementOptions.borderWidth)
|
|
},
|
|
|
|
draw: function () {
|
|
var ctx = this._chart.ctx;
|
|
var vm = this._view;
|
|
|
|
var halfHeight = vm.height / 2,
|
|
topY = vm.y - halfHeight,
|
|
bottomY = vm.y + halfHeight,
|
|
right = vm.base - (vm.base - vm.x),
|
|
halfStroke = vm.borderWidth / 2;
|
|
|
|
// Canvas doesn't allow us to stroke inside the width so we can
|
|
// adjust the sizes to fit if we're setting a stroke on the line
|
|
if (vm.borderWidth) {
|
|
topY += halfStroke;
|
|
bottomY -= halfStroke;
|
|
right += halfStroke;
|
|
}
|
|
|
|
ctx.beginPath();
|
|
|
|
ctx.fillStyle = vm.backgroundColor;
|
|
ctx.strokeStyle = vm.borderColor;
|
|
ctx.lineWidth = vm.borderWidth;
|
|
|
|
// Corner points, from bottom-left to bottom-right clockwise
|
|
// | 1 2 |
|
|
// | 0 3 |
|
|
var corners = [
|
|
[vm.base, bottomY],
|
|
[vm.base, topY],
|
|
[right, topY],
|
|
[right, bottomY]
|
|
];
|
|
|
|
// Find first (starting) corner with fallback to 'bottom'
|
|
var borders = ['bottom', 'left', 'top', 'right'];
|
|
var startCorner = borders.indexOf(vm.borderSkipped, 0);
|
|
if (startCorner === -1)
|
|
startCorner = 0;
|
|
|
|
function cornerAt(index) {
|
|
return corners[(startCorner + index) % 4];
|
|
}
|
|
|
|
// Draw rectangle from 'startCorner'
|
|
ctx.moveTo.apply(ctx, cornerAt(0));
|
|
for (var i = 1; i < 4; i++)
|
|
ctx.lineTo.apply(ctx, cornerAt(i));
|
|
|
|
ctx.fill();
|
|
if (vm.borderWidth) {
|
|
ctx.stroke();
|
|
}
|
|
},
|
|
|
|
inRange: function (mouseX, mouseY) {
|
|
var vm = this._view;
|
|
var inRange = false;
|
|
|
|
if (vm) {
|
|
if (vm.x < vm.base) {
|
|
inRange = (mouseY >= vm.y - vm.height / 2 && mouseY <= vm.y + vm.height / 2) && (mouseX >= vm.x && mouseX <= vm.base);
|
|
} else {
|
|
inRange = (mouseY >= vm.y - vm.height / 2 && mouseY <= vm.y + vm.height / 2) && (mouseX >= vm.base && mouseX <= vm.x);
|
|
}
|
|
}
|
|
|
|
return inRange;
|
|
}
|
|
});
|
|
|
|
rectangle.pivot();
|
|
},
|
|
|
|
calculateBarBase: function (datasetIndex, index) {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var xScale = me.getScaleForId(meta.xAxisID);
|
|
var base = 0;
|
|
|
|
if (xScale.options.stacked) {
|
|
var chart = me.chart;
|
|
var datasets = chart.data.datasets;
|
|
var value = Number(datasets[datasetIndex].data[index]);
|
|
|
|
for (var i = 0; i < datasetIndex; i++) {
|
|
var currentDs = datasets[i];
|
|
var currentDsMeta = chart.getDatasetMeta(i);
|
|
if (currentDsMeta.bar && currentDsMeta.xAxisID === xScale.id && chart.isDatasetVisible(i)) {
|
|
var currentVal = Number(currentDs.data[index]);
|
|
base += value < 0 ? Math.min(currentVal, 0) : Math.max(currentVal, 0);
|
|
}
|
|
}
|
|
|
|
return xScale.getPixelForValue(base);
|
|
}
|
|
|
|
return xScale.getBasePixel();
|
|
},
|
|
|
|
getRuler: function (index) {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var yScale = me.getScaleForId(meta.yAxisID);
|
|
var datasetCount = me.getBarCount();
|
|
|
|
var tickHeight;
|
|
if (yScale.options.type === 'category') {
|
|
tickHeight = yScale.getPixelForTick(index + 1) - yScale.getPixelForTick(index);
|
|
} else {
|
|
// Average width
|
|
tickHeight = yScale.width / yScale.ticks.length;
|
|
}
|
|
var categoryHeight = tickHeight * yScale.options.categoryPercentage;
|
|
var categorySpacing = (tickHeight - (tickHeight * yScale.options.categoryPercentage)) / 2;
|
|
var fullBarHeight = categoryHeight / datasetCount;
|
|
|
|
if (yScale.ticks.length !== me.chart.data.labels.length) {
|
|
var perc = yScale.ticks.length / me.chart.data.labels.length;
|
|
fullBarHeight = fullBarHeight * perc;
|
|
}
|
|
|
|
var barHeight = fullBarHeight * yScale.options.barPercentage;
|
|
var barSpacing = fullBarHeight - (fullBarHeight * yScale.options.barPercentage);
|
|
|
|
return {
|
|
datasetCount: datasetCount,
|
|
tickHeight: tickHeight,
|
|
categoryHeight: categoryHeight,
|
|
categorySpacing: categorySpacing,
|
|
fullBarHeight: fullBarHeight,
|
|
barHeight: barHeight,
|
|
barSpacing: barSpacing
|
|
};
|
|
},
|
|
|
|
calculateBarHeight: function (index) {
|
|
var me = this;
|
|
var yScale = me.getScaleForId(me.getMeta().yAxisID);
|
|
if (yScale.options.barThickness) {
|
|
return yScale.options.barThickness;
|
|
}
|
|
var ruler = me.getRuler(index);
|
|
return yScale.options.stacked ? ruler.categoryHeight : ruler.barHeight;
|
|
},
|
|
|
|
calculateBarX: function (index, datasetIndex) {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var xScale = me.getScaleForId(meta.xAxisID);
|
|
var value = Number(me.getDataset().data[index]);
|
|
|
|
if (xScale.options.stacked) {
|
|
|
|
var sumPos = 0,
|
|
sumNeg = 0;
|
|
|
|
for (var i = 0; i < datasetIndex; i++) {
|
|
var ds = me.chart.data.datasets[i];
|
|
var dsMeta = me.chart.getDatasetMeta(i);
|
|
if (dsMeta.bar && dsMeta.xAxisID === xScale.id && me.chart.isDatasetVisible(i)) {
|
|
var stackedVal = Number(ds.data[index]);
|
|
if (stackedVal < 0) {
|
|
sumNeg += stackedVal || 0;
|
|
} else {
|
|
sumPos += stackedVal || 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (value < 0) {
|
|
return xScale.getPixelForValue(sumNeg + value);
|
|
} else {
|
|
return xScale.getPixelForValue(sumPos + value);
|
|
}
|
|
}
|
|
|
|
return xScale.getPixelForValue(value);
|
|
},
|
|
|
|
calculateBarY: function (index, datasetIndex) {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var yScale = me.getScaleForId(meta.yAxisID);
|
|
var barIndex = me.getBarIndex(datasetIndex);
|
|
|
|
var ruler = me.getRuler(index);
|
|
var topTick = yScale.getPixelForValue(null, index, datasetIndex, me.chart.isCombo);
|
|
topTick -= me.chart.isCombo ? (ruler.tickHeight / 2) : 0;
|
|
|
|
if (yScale.options.stacked) {
|
|
return topTick + (ruler.categoryHeight / 2) + ruler.categorySpacing;
|
|
}
|
|
|
|
return topTick +
|
|
(ruler.barHeight / 2) +
|
|
ruler.categorySpacing +
|
|
(ruler.barHeight * barIndex) +
|
|
(ruler.barSpacing / 2) +
|
|
(ruler.barSpacing * barIndex);
|
|
}
|
|
});
|
|
};
|
|
|
|
},{}],16:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
|
|
Chart.defaults.bubble = {
|
|
hover: {
|
|
mode: "single"
|
|
},
|
|
|
|
scales: {
|
|
xAxes: [{
|
|
type: "linear", // bubble should probably use a linear scale by default
|
|
position: "bottom",
|
|
id: "x-axis-0" // need an ID so datasets can reference the scale
|
|
}],
|
|
yAxes: [{
|
|
type: "linear",
|
|
position: "left",
|
|
id: "y-axis-0"
|
|
}]
|
|
},
|
|
|
|
tooltips: {
|
|
callbacks: {
|
|
title: function() {
|
|
// Title doesn't make sense for scatter since we format the data as a point
|
|
return '';
|
|
},
|
|
label: function(tooltipItem, data) {
|
|
var datasetLabel = data.datasets[tooltipItem.datasetIndex].label || '';
|
|
var dataPoint = data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index];
|
|
return datasetLabel + ': (' + dataPoint.x + ', ' + dataPoint.y + ', ' + dataPoint.r + ')';
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
Chart.controllers.bubble = Chart.DatasetController.extend({
|
|
|
|
dataElementType: Chart.elements.Point,
|
|
|
|
update: function(reset) {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var points = meta.data;
|
|
|
|
// Update Points
|
|
helpers.each(points, function(point, index) {
|
|
me.updateElement(point, index, reset);
|
|
});
|
|
},
|
|
|
|
updateElement: function(point, index, reset) {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var xScale = me.getScaleForId(meta.xAxisID);
|
|
var yScale = me.getScaleForId(meta.yAxisID);
|
|
|
|
var custom = point.custom || {};
|
|
var dataset = me.getDataset();
|
|
var data = dataset.data[index];
|
|
var pointElementOptions = me.chart.options.elements.point;
|
|
var dsIndex = me.index;
|
|
|
|
helpers.extend(point, {
|
|
// Utility
|
|
_xScale: xScale,
|
|
_yScale: yScale,
|
|
_datasetIndex: dsIndex,
|
|
_index: index,
|
|
|
|
// Desired view properties
|
|
_model: {
|
|
x: reset ? xScale.getPixelForDecimal(0.5) : xScale.getPixelForValue(typeof data === 'object' ? data : NaN, index, dsIndex, me.chart.isCombo),
|
|
y: reset ? yScale.getBasePixel() : yScale.getPixelForValue(data, index, dsIndex),
|
|
// Appearance
|
|
radius: reset ? 0 : custom.radius ? custom.radius : me.getRadius(data),
|
|
|
|
// Tooltip
|
|
hitRadius: custom.hitRadius ? custom.hitRadius : helpers.getValueAtIndexOrDefault(dataset.hitRadius, index, pointElementOptions.hitRadius)
|
|
}
|
|
});
|
|
|
|
// Trick to reset the styles of the point
|
|
Chart.DatasetController.prototype.removeHoverStyle.call(me, point, pointElementOptions);
|
|
|
|
var model = point._model;
|
|
model.skip = custom.skip ? custom.skip : (isNaN(model.x) || isNaN(model.y));
|
|
|
|
point.pivot();
|
|
},
|
|
|
|
getRadius: function(value) {
|
|
return value.r || this.chart.options.elements.point.radius;
|
|
},
|
|
|
|
setHoverStyle: function(point) {
|
|
var me = this;
|
|
Chart.DatasetController.prototype.setHoverStyle.call(me, point);
|
|
|
|
// Radius
|
|
var dataset = me.chart.data.datasets[point._datasetIndex];
|
|
var index = point._index;
|
|
var custom = point.custom || {};
|
|
var model = point._model;
|
|
model.radius = custom.hoverRadius ? custom.hoverRadius : (helpers.getValueAtIndexOrDefault(dataset.hoverRadius, index, me.chart.options.elements.point.hoverRadius)) + me.getRadius(dataset.data[index]);
|
|
},
|
|
|
|
removeHoverStyle: function(point) {
|
|
var me = this;
|
|
Chart.DatasetController.prototype.removeHoverStyle.call(me, point, me.chart.options.elements.point);
|
|
|
|
var dataVal = me.chart.data.datasets[point._datasetIndex].data[point._index];
|
|
var custom = point.custom || {};
|
|
var model = point._model;
|
|
|
|
model.radius = custom.radius ? custom.radius : me.getRadius(dataVal);
|
|
}
|
|
});
|
|
};
|
|
|
|
},{}],17:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers,
|
|
defaults = Chart.defaults;
|
|
|
|
defaults.doughnut = {
|
|
animation: {
|
|
//Boolean - Whether we animate the rotation of the Doughnut
|
|
animateRotate: true,
|
|
//Boolean - Whether we animate scaling the Doughnut from the centre
|
|
animateScale: false
|
|
},
|
|
aspectRatio: 1,
|
|
hover: {
|
|
mode: 'single'
|
|
},
|
|
legendCallback: function(chart) {
|
|
var text = [];
|
|
text.push('<ul class="' + chart.id + '-legend">');
|
|
|
|
var data = chart.data;
|
|
var datasets = data.datasets;
|
|
var labels = data.labels;
|
|
|
|
if (datasets.length) {
|
|
for (var i = 0; i < datasets[0].data.length; ++i) {
|
|
text.push('<li><span style="background-color:' + datasets[0].backgroundColor[i] + '"></span>');
|
|
if (labels[i]) {
|
|
text.push(labels[i]);
|
|
}
|
|
text.push('</li>');
|
|
}
|
|
}
|
|
|
|
text.push('</ul>');
|
|
return text.join("");
|
|
},
|
|
legend: {
|
|
labels: {
|
|
generateLabels: function(chart) {
|
|
var data = chart.data;
|
|
if (data.labels.length && data.datasets.length) {
|
|
return data.labels.map(function(label, i) {
|
|
var meta = chart.getDatasetMeta(0);
|
|
var ds = data.datasets[0];
|
|
var arc = meta.data[i];
|
|
var custom = arc && arc.custom || {};
|
|
var getValueAtIndexOrDefault = helpers.getValueAtIndexOrDefault;
|
|
var arcOpts = chart.options.elements.arc;
|
|
var fill = custom.backgroundColor ? custom.backgroundColor : getValueAtIndexOrDefault(ds.backgroundColor, i, arcOpts.backgroundColor);
|
|
var stroke = custom.borderColor ? custom.borderColor : getValueAtIndexOrDefault(ds.borderColor, i, arcOpts.borderColor);
|
|
var bw = custom.borderWidth ? custom.borderWidth : getValueAtIndexOrDefault(ds.borderWidth, i, arcOpts.borderWidth);
|
|
|
|
return {
|
|
text: label,
|
|
fillStyle: fill,
|
|
strokeStyle: stroke,
|
|
lineWidth: bw,
|
|
hidden: isNaN(ds.data[i]) || meta.data[i].hidden,
|
|
|
|
// Extra data used for toggling the correct item
|
|
index: i
|
|
};
|
|
});
|
|
} else {
|
|
return [];
|
|
}
|
|
}
|
|
},
|
|
|
|
onClick: function(e, legendItem) {
|
|
var index = legendItem.index;
|
|
var chart = this.chart;
|
|
var i, ilen, meta;
|
|
|
|
for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
|
|
meta = chart.getDatasetMeta(i);
|
|
meta.data[index].hidden = !meta.data[index].hidden;
|
|
}
|
|
|
|
chart.update();
|
|
}
|
|
},
|
|
|
|
//The percentage of the chart that we cut out of the middle.
|
|
cutoutPercentage: 50,
|
|
|
|
//The rotation of the chart, where the first data arc begins.
|
|
rotation: Math.PI * -0.5,
|
|
|
|
//The total circumference of the chart.
|
|
circumference: Math.PI * 2.0,
|
|
|
|
// Need to override these to give a nice default
|
|
tooltips: {
|
|
callbacks: {
|
|
title: function() {
|
|
return '';
|
|
},
|
|
label: function(tooltipItem, data) {
|
|
return data.labels[tooltipItem.index] + ': ' + data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index];
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
defaults.pie = helpers.clone(defaults.doughnut);
|
|
helpers.extend(defaults.pie, {
|
|
cutoutPercentage: 0
|
|
});
|
|
|
|
|
|
Chart.controllers.doughnut = Chart.controllers.pie = Chart.DatasetController.extend({
|
|
|
|
dataElementType: Chart.elements.Arc,
|
|
|
|
linkScales: helpers.noop,
|
|
|
|
// Get index of the dataset in relation to the visible datasets. This allows determining the inner and outer radius correctly
|
|
getRingIndex: function(datasetIndex) {
|
|
var ringIndex = 0;
|
|
|
|
for (var j = 0; j < datasetIndex; ++j) {
|
|
if (this.chart.isDatasetVisible(j)) {
|
|
++ringIndex;
|
|
}
|
|
}
|
|
|
|
return ringIndex;
|
|
},
|
|
|
|
update: function(reset) {
|
|
var me = this;
|
|
var chart = me.chart,
|
|
chartArea = chart.chartArea,
|
|
opts = chart.options,
|
|
arcOpts = opts.elements.arc,
|
|
availableWidth = chartArea.right - chartArea.left - arcOpts.borderWidth,
|
|
availableHeight = chartArea.bottom - chartArea.top - arcOpts.borderWidth,
|
|
minSize = Math.min(availableWidth, availableHeight),
|
|
offset = {
|
|
x: 0,
|
|
y: 0
|
|
},
|
|
meta = me.getMeta(),
|
|
cutoutPercentage = opts.cutoutPercentage,
|
|
circumference = opts.circumference;
|
|
|
|
// If the chart's circumference isn't a full circle, calculate minSize as a ratio of the width/height of the arc
|
|
if (circumference < Math.PI * 2.0) {
|
|
var startAngle = opts.rotation % (Math.PI * 2.0);
|
|
startAngle += Math.PI * 2.0 * (startAngle >= Math.PI ? -1 : startAngle < -Math.PI ? 1 : 0);
|
|
var endAngle = startAngle + circumference;
|
|
var start = {x: Math.cos(startAngle), y: Math.sin(startAngle)};
|
|
var end = {x: Math.cos(endAngle), y: Math.sin(endAngle)};
|
|
var contains0 = (startAngle <= 0 && 0 <= endAngle) || (startAngle <= Math.PI * 2.0 && Math.PI * 2.0 <= endAngle);
|
|
var contains90 = (startAngle <= Math.PI * 0.5 && Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 2.5 && Math.PI * 2.5 <= endAngle);
|
|
var contains180 = (startAngle <= -Math.PI && -Math.PI <= endAngle) || (startAngle <= Math.PI && Math.PI <= endAngle);
|
|
var contains270 = (startAngle <= -Math.PI * 0.5 && -Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 1.5 && Math.PI * 1.5 <= endAngle);
|
|
var cutout = cutoutPercentage / 100.0;
|
|
var min = {x: contains180 ? -1 : Math.min(start.x * (start.x < 0 ? 1 : cutout), end.x * (end.x < 0 ? 1 : cutout)), y: contains270 ? -1 : Math.min(start.y * (start.y < 0 ? 1 : cutout), end.y * (end.y < 0 ? 1 : cutout))};
|
|
var max = {x: contains0 ? 1 : Math.max(start.x * (start.x > 0 ? 1 : cutout), end.x * (end.x > 0 ? 1 : cutout)), y: contains90 ? 1 : Math.max(start.y * (start.y > 0 ? 1 : cutout), end.y * (end.y > 0 ? 1 : cutout))};
|
|
var size = {width: (max.x - min.x) * 0.5, height: (max.y - min.y) * 0.5};
|
|
minSize = Math.min(availableWidth / size.width, availableHeight / size.height);
|
|
offset = {x: (max.x + min.x) * -0.5, y: (max.y + min.y) * -0.5};
|
|
}
|
|
chart.borderWidth = me.getMaxBorderWidth(meta.data);
|
|
|
|
chart.outerRadius = Math.max((minSize - chart.borderWidth) / 2, 0);
|
|
chart.innerRadius = Math.max(cutoutPercentage ? (chart.outerRadius / 100) * (cutoutPercentage) : 1, 0);
|
|
chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount();
|
|
chart.offsetX = offset.x * chart.outerRadius;
|
|
chart.offsetY = offset.y * chart.outerRadius;
|
|
|
|
meta.total = me.calculateTotal();
|
|
|
|
me.outerRadius = chart.outerRadius - (chart.radiusLength * me.getRingIndex(me.index));
|
|
me.innerRadius = me.outerRadius - chart.radiusLength;
|
|
|
|
helpers.each(meta.data, function(arc, index) {
|
|
me.updateElement(arc, index, reset);
|
|
});
|
|
},
|
|
|
|
updateElement: function(arc, index, reset) {
|
|
var me = this;
|
|
var chart = me.chart,
|
|
chartArea = chart.chartArea,
|
|
opts = chart.options,
|
|
animationOpts = opts.animation,
|
|
centerX = (chartArea.left + chartArea.right) / 2,
|
|
centerY = (chartArea.top + chartArea.bottom) / 2,
|
|
startAngle = opts.rotation, // non reset case handled later
|
|
endAngle = opts.rotation, // non reset case handled later
|
|
dataset = me.getDataset(),
|
|
circumference = reset && animationOpts.animateRotate ? 0 : arc.hidden ? 0 : me.calculateCircumference(dataset.data[index]) * (opts.circumference / (2.0 * Math.PI)),
|
|
innerRadius = reset && animationOpts.animateScale ? 0 : me.innerRadius,
|
|
outerRadius = reset && animationOpts.animateScale ? 0 : me.outerRadius,
|
|
valueAtIndexOrDefault = helpers.getValueAtIndexOrDefault;
|
|
|
|
helpers.extend(arc, {
|
|
// Utility
|
|
_datasetIndex: me.index,
|
|
_index: index,
|
|
|
|
// Desired view properties
|
|
_model: {
|
|
x: centerX + chart.offsetX,
|
|
y: centerY + chart.offsetY,
|
|
startAngle: startAngle,
|
|
endAngle: endAngle,
|
|
circumference: circumference,
|
|
outerRadius: outerRadius,
|
|
innerRadius: innerRadius,
|
|
label: valueAtIndexOrDefault(dataset.label, index, chart.data.labels[index])
|
|
}
|
|
});
|
|
|
|
var model = arc._model;
|
|
// Resets the visual styles
|
|
this.removeHoverStyle(arc);
|
|
|
|
// Set correct angles if not resetting
|
|
if (!reset || !animationOpts.animateRotate) {
|
|
if (index === 0) {
|
|
model.startAngle = opts.rotation;
|
|
} else {
|
|
model.startAngle = me.getMeta().data[index - 1]._model.endAngle;
|
|
}
|
|
|
|
model.endAngle = model.startAngle + model.circumference;
|
|
}
|
|
|
|
arc.pivot();
|
|
},
|
|
|
|
removeHoverStyle: function(arc) {
|
|
Chart.DatasetController.prototype.removeHoverStyle.call(this, arc, this.chart.options.elements.arc);
|
|
},
|
|
|
|
calculateTotal: function() {
|
|
var dataset = this.getDataset();
|
|
var meta = this.getMeta();
|
|
var total = 0;
|
|
var value;
|
|
|
|
helpers.each(meta.data, function(element, index) {
|
|
value = dataset.data[index];
|
|
if (!isNaN(value) && !element.hidden) {
|
|
total += Math.abs(value);
|
|
}
|
|
});
|
|
|
|
/*if (total === 0) {
|
|
total = NaN;
|
|
}*/
|
|
|
|
return total;
|
|
},
|
|
|
|
calculateCircumference: function(value) {
|
|
var total = this.getMeta().total;
|
|
if (total > 0 && !isNaN(value)) {
|
|
return (Math.PI * 2.0) * (value / total);
|
|
} else {
|
|
return 0;
|
|
}
|
|
},
|
|
|
|
//gets the max border or hover width to properly scale pie charts
|
|
getMaxBorderWidth: function (elements) {
|
|
var max = 0,
|
|
index = this.index,
|
|
length = elements.length,
|
|
borderWidth,
|
|
hoverWidth;
|
|
|
|
for (var i = 0; i < length; i++) {
|
|
borderWidth = elements[i]._model ? elements[i]._model.borderWidth : 0;
|
|
hoverWidth = elements[i]._chart ? elements[i]._chart.config.data.datasets[index].hoverBorderWidth : 0;
|
|
|
|
max = borderWidth > max ? borderWidth : max;
|
|
max = hoverWidth > max ? hoverWidth : max;
|
|
}
|
|
return max;
|
|
}
|
|
});
|
|
};
|
|
|
|
},{}],18:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
|
|
Chart.defaults.line = {
|
|
showLines: true,
|
|
spanGaps: false,
|
|
|
|
hover: {
|
|
mode: "label"
|
|
},
|
|
|
|
scales: {
|
|
xAxes: [{
|
|
type: "category",
|
|
id: 'x-axis-0'
|
|
}],
|
|
yAxes: [{
|
|
type: "linear",
|
|
id: 'y-axis-0'
|
|
}]
|
|
}
|
|
};
|
|
|
|
function lineEnabled(dataset, options) {
|
|
return helpers.getValueOrDefault(dataset.showLine, options.showLines);
|
|
}
|
|
|
|
Chart.controllers.line = Chart.DatasetController.extend({
|
|
|
|
datasetElementType: Chart.elements.Line,
|
|
|
|
dataElementType: Chart.elements.Point,
|
|
|
|
addElementAndReset: function(index) {
|
|
var me = this;
|
|
var options = me.chart.options;
|
|
var meta = me.getMeta();
|
|
|
|
Chart.DatasetController.prototype.addElementAndReset.call(me, index);
|
|
|
|
// Make sure bezier control points are updated
|
|
if (lineEnabled(me.getDataset(), options) && meta.dataset._model.tension !== 0) {
|
|
me.updateBezierControlPoints();
|
|
}
|
|
},
|
|
|
|
update: function(reset) {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var line = meta.dataset;
|
|
var points = meta.data || [];
|
|
var options = me.chart.options;
|
|
var lineElementOptions = options.elements.line;
|
|
var scale = me.getScaleForId(meta.yAxisID);
|
|
var i, ilen, custom;
|
|
var dataset = me.getDataset();
|
|
var showLine = lineEnabled(dataset, options);
|
|
|
|
// Update Line
|
|
if (showLine) {
|
|
custom = line.custom || {};
|
|
|
|
// Compatibility: If the properties are defined with only the old name, use those values
|
|
if ((dataset.tension !== undefined) && (dataset.lineTension === undefined)) {
|
|
dataset.lineTension = dataset.tension;
|
|
}
|
|
|
|
// Utility
|
|
line._scale = scale;
|
|
line._datasetIndex = me.index;
|
|
// Data
|
|
line._children = points;
|
|
// Model
|
|
line._model = {
|
|
// Appearance
|
|
// The default behavior of lines is to break at null values, according
|
|
// to https://github.com/chartjs/Chart.js/issues/2435#issuecomment-216718158
|
|
// This option gives linse the ability to span gaps
|
|
spanGaps: dataset.spanGaps ? dataset.spanGaps : options.spanGaps,
|
|
tension: custom.tension ? custom.tension : helpers.getValueOrDefault(dataset.lineTension, lineElementOptions.tension),
|
|
backgroundColor: custom.backgroundColor ? custom.backgroundColor : (dataset.backgroundColor || lineElementOptions.backgroundColor),
|
|
borderWidth: custom.borderWidth ? custom.borderWidth : (dataset.borderWidth || lineElementOptions.borderWidth),
|
|
borderColor: custom.borderColor ? custom.borderColor : (dataset.borderColor || lineElementOptions.borderColor),
|
|
borderCapStyle: custom.borderCapStyle ? custom.borderCapStyle : (dataset.borderCapStyle || lineElementOptions.borderCapStyle),
|
|
borderDash: custom.borderDash ? custom.borderDash : (dataset.borderDash || lineElementOptions.borderDash),
|
|
borderDashOffset: custom.borderDashOffset ? custom.borderDashOffset : (dataset.borderDashOffset || lineElementOptions.borderDashOffset),
|
|
borderJoinStyle: custom.borderJoinStyle ? custom.borderJoinStyle : (dataset.borderJoinStyle || lineElementOptions.borderJoinStyle),
|
|
fill: custom.fill ? custom.fill : (dataset.fill !== undefined ? dataset.fill : lineElementOptions.fill),
|
|
steppedLine: custom.steppedLine ? custom.steppedLine : helpers.getValueOrDefault(dataset.steppedLine, lineElementOptions.stepped),
|
|
cubicInterpolationMode: custom.cubicInterpolationMode ? custom.cubicInterpolationMode : helpers.getValueOrDefault(dataset.cubicInterpolationMode, lineElementOptions.cubicInterpolationMode),
|
|
// Scale
|
|
scaleTop: scale.top,
|
|
scaleBottom: scale.bottom,
|
|
scaleZero: scale.getBasePixel()
|
|
};
|
|
|
|
line.pivot();
|
|
}
|
|
|
|
// Update Points
|
|
for (i=0, ilen=points.length; i<ilen; ++i) {
|
|
me.updateElement(points[i], i, reset);
|
|
}
|
|
|
|
if (showLine && line._model.tension !== 0) {
|
|
me.updateBezierControlPoints();
|
|
}
|
|
|
|
// Now pivot the point for animation
|
|
for (i=0, ilen=points.length; i<ilen; ++i) {
|
|
points[i].pivot();
|
|
}
|
|
},
|
|
|
|
getPointBackgroundColor: function(point, index) {
|
|
var backgroundColor = this.chart.options.elements.point.backgroundColor;
|
|
var dataset = this.getDataset();
|
|
var custom = point.custom || {};
|
|
|
|
if (custom.backgroundColor) {
|
|
backgroundColor = custom.backgroundColor;
|
|
} else if (dataset.pointBackgroundColor) {
|
|
backgroundColor = helpers.getValueAtIndexOrDefault(dataset.pointBackgroundColor, index, backgroundColor);
|
|
} else if (dataset.backgroundColor) {
|
|
backgroundColor = dataset.backgroundColor;
|
|
}
|
|
|
|
return backgroundColor;
|
|
},
|
|
|
|
getPointBorderColor: function(point, index) {
|
|
var borderColor = this.chart.options.elements.point.borderColor;
|
|
var dataset = this.getDataset();
|
|
var custom = point.custom || {};
|
|
|
|
if (custom.borderColor) {
|
|
borderColor = custom.borderColor;
|
|
} else if (dataset.pointBorderColor) {
|
|
borderColor = helpers.getValueAtIndexOrDefault(dataset.pointBorderColor, index, borderColor);
|
|
} else if (dataset.borderColor) {
|
|
borderColor = dataset.borderColor;
|
|
}
|
|
|
|
return borderColor;
|
|
},
|
|
|
|
getPointBorderWidth: function(point, index) {
|
|
var borderWidth = this.chart.options.elements.point.borderWidth;
|
|
var dataset = this.getDataset();
|
|
var custom = point.custom || {};
|
|
|
|
if (custom.borderWidth) {
|
|
borderWidth = custom.borderWidth;
|
|
} else if (dataset.pointBorderWidth) {
|
|
borderWidth = helpers.getValueAtIndexOrDefault(dataset.pointBorderWidth, index, borderWidth);
|
|
} else if (dataset.borderWidth) {
|
|
borderWidth = dataset.borderWidth;
|
|
}
|
|
|
|
return borderWidth;
|
|
},
|
|
|
|
updateElement: function(point, index, reset) {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var custom = point.custom || {};
|
|
var dataset = me.getDataset();
|
|
var datasetIndex = me.index;
|
|
var value = dataset.data[index];
|
|
var yScale = me.getScaleForId(meta.yAxisID);
|
|
var xScale = me.getScaleForId(meta.xAxisID);
|
|
var pointOptions = me.chart.options.elements.point;
|
|
var x, y;
|
|
var labels = me.chart.data.labels || [];
|
|
var includeOffset = (labels.length === 1 || dataset.data.length === 1) || me.chart.isCombo;
|
|
|
|
// Compatibility: If the properties are defined with only the old name, use those values
|
|
if ((dataset.radius !== undefined) && (dataset.pointRadius === undefined)) {
|
|
dataset.pointRadius = dataset.radius;
|
|
}
|
|
if ((dataset.hitRadius !== undefined) && (dataset.pointHitRadius === undefined)) {
|
|
dataset.pointHitRadius = dataset.hitRadius;
|
|
}
|
|
|
|
x = xScale.getPixelForValue(typeof value === 'object' ? value : NaN, index, datasetIndex, includeOffset);
|
|
y = reset ? yScale.getBasePixel() : me.calculatePointY(value, index, datasetIndex);
|
|
|
|
// Utility
|
|
point._xScale = xScale;
|
|
point._yScale = yScale;
|
|
point._datasetIndex = datasetIndex;
|
|
point._index = index;
|
|
|
|
// Desired view properties
|
|
point._model = {
|
|
x: x,
|
|
y: y,
|
|
skip: custom.skip || isNaN(x) || isNaN(y),
|
|
// Appearance
|
|
radius: custom.radius || helpers.getValueAtIndexOrDefault(dataset.pointRadius, index, pointOptions.radius),
|
|
pointStyle: custom.pointStyle || helpers.getValueAtIndexOrDefault(dataset.pointStyle, index, pointOptions.pointStyle),
|
|
backgroundColor: me.getPointBackgroundColor(point, index),
|
|
borderColor: me.getPointBorderColor(point, index),
|
|
borderWidth: me.getPointBorderWidth(point, index),
|
|
tension: meta.dataset._model ? meta.dataset._model.tension : 0,
|
|
steppedLine: meta.dataset._model ? meta.dataset._model.steppedLine : false,
|
|
// Tooltip
|
|
hitRadius: custom.hitRadius || helpers.getValueAtIndexOrDefault(dataset.pointHitRadius, index, pointOptions.hitRadius)
|
|
};
|
|
},
|
|
|
|
calculatePointY: function(value, index, datasetIndex) {
|
|
var me = this;
|
|
var chart = me.chart;
|
|
var meta = me.getMeta();
|
|
var yScale = me.getScaleForId(meta.yAxisID);
|
|
var sumPos = 0;
|
|
var sumNeg = 0;
|
|
var i, ds, dsMeta;
|
|
|
|
if (yScale.options.stacked) {
|
|
for (i = 0; i < datasetIndex; i++) {
|
|
ds = chart.data.datasets[i];
|
|
dsMeta = chart.getDatasetMeta(i);
|
|
if (dsMeta.type === 'line' && dsMeta.yAxisID === yScale.id && chart.isDatasetVisible(i)) {
|
|
var stackedRightValue = Number(yScale.getRightValue(ds.data[index]));
|
|
if (stackedRightValue < 0) {
|
|
sumNeg += stackedRightValue || 0;
|
|
} else {
|
|
sumPos += stackedRightValue || 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
var rightValue = Number(yScale.getRightValue(value));
|
|
if (rightValue < 0) {
|
|
return yScale.getPixelForValue(sumNeg + rightValue);
|
|
} else {
|
|
return yScale.getPixelForValue(sumPos + rightValue);
|
|
}
|
|
}
|
|
|
|
return yScale.getPixelForValue(value);
|
|
},
|
|
|
|
updateBezierControlPoints: function() {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var area = me.chart.chartArea;
|
|
|
|
// Only consider points that are drawn in case the spanGaps option is used
|
|
var points = (meta.data || []);
|
|
if (meta.dataset._model.spanGaps) points = points.filter(function(pt) { return !pt._model.skip; });
|
|
var i, ilen, point, model, controlPoints;
|
|
|
|
function capControlPoint(pt, min, max) {
|
|
return Math.max(Math.min(pt, max), min);
|
|
}
|
|
|
|
if (meta.dataset._model.cubicInterpolationMode == 'monotone') {
|
|
helpers.splineCurveMonotone(points);
|
|
}
|
|
else {
|
|
for (i = 0, ilen = points.length; i < ilen; ++i) {
|
|
point = points[i];
|
|
model = point._model;
|
|
controlPoints = helpers.splineCurve(
|
|
helpers.previousItem(points, i)._model,
|
|
model,
|
|
helpers.nextItem(points, i)._model,
|
|
meta.dataset._model.tension
|
|
);
|
|
model.controlPointPreviousX = controlPoints.previous.x;
|
|
model.controlPointPreviousY = controlPoints.previous.y;
|
|
model.controlPointNextX = controlPoints.next.x;
|
|
model.controlPointNextY = controlPoints.next.y;
|
|
}
|
|
}
|
|
|
|
if (me.chart.options.elements.line.capBezierPoints) {
|
|
for (i = 0, ilen = points.length; i < ilen; ++i) {
|
|
model = points[i]._model;
|
|
model.controlPointPreviousX = capControlPoint(model.controlPointPreviousX, area.left, area.right);
|
|
model.controlPointPreviousY = capControlPoint(model.controlPointPreviousY, area.top, area.bottom);
|
|
model.controlPointNextX = capControlPoint(model.controlPointNextX, area.left, area.right);
|
|
model.controlPointNextY = capControlPoint(model.controlPointNextY, area.top, area.bottom);
|
|
}
|
|
}
|
|
|
|
},
|
|
|
|
draw: function(ease) {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var points = meta.data || [];
|
|
var easingDecimal = ease || 1;
|
|
var i, ilen;
|
|
|
|
// Transition Point Locations
|
|
for (i=0, ilen=points.length; i<ilen; ++i) {
|
|
points[i].transition(easingDecimal);
|
|
}
|
|
|
|
// Transition and Draw the line
|
|
if (lineEnabled(me.getDataset(), me.chart.options)) {
|
|
meta.dataset.transition(easingDecimal).draw();
|
|
}
|
|
|
|
// Draw the points
|
|
for (i=0, ilen=points.length; i<ilen; ++i) {
|
|
points[i].draw();
|
|
}
|
|
},
|
|
|
|
setHoverStyle: function(point) {
|
|
// Point
|
|
var dataset = this.chart.data.datasets[point._datasetIndex];
|
|
var index = point._index;
|
|
var custom = point.custom || {};
|
|
var model = point._model;
|
|
|
|
model.radius = custom.hoverRadius || helpers.getValueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius);
|
|
model.backgroundColor = custom.hoverBackgroundColor || helpers.getValueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor));
|
|
model.borderColor = custom.hoverBorderColor || helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.getHoverColor(model.borderColor));
|
|
model.borderWidth = custom.hoverBorderWidth || helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, model.borderWidth);
|
|
},
|
|
|
|
removeHoverStyle: function(point) {
|
|
var me = this;
|
|
var dataset = me.chart.data.datasets[point._datasetIndex];
|
|
var index = point._index;
|
|
var custom = point.custom || {};
|
|
var model = point._model;
|
|
|
|
// Compatibility: If the properties are defined with only the old name, use those values
|
|
if ((dataset.radius !== undefined) && (dataset.pointRadius === undefined)) {
|
|
dataset.pointRadius = dataset.radius;
|
|
}
|
|
|
|
model.radius = custom.radius || helpers.getValueAtIndexOrDefault(dataset.pointRadius, index, me.chart.options.elements.point.radius);
|
|
model.backgroundColor = me.getPointBackgroundColor(point, index);
|
|
model.borderColor = me.getPointBorderColor(point, index);
|
|
model.borderWidth = me.getPointBorderWidth(point, index);
|
|
}
|
|
});
|
|
};
|
|
|
|
},{}],19:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
|
|
Chart.defaults.polarArea = {
|
|
|
|
scale: {
|
|
type: "radialLinear",
|
|
lineArc: true, // so that lines are circular
|
|
ticks: {
|
|
beginAtZero: true
|
|
}
|
|
},
|
|
|
|
//Boolean - Whether to animate the rotation of the chart
|
|
animation: {
|
|
animateRotate: true,
|
|
animateScale: true
|
|
},
|
|
|
|
startAngle: -0.5 * Math.PI,
|
|
aspectRatio: 1,
|
|
legendCallback: function(chart) {
|
|
var text = [];
|
|
text.push('<ul class="' + chart.id + '-legend">');
|
|
|
|
var data = chart.data;
|
|
var datasets = data.datasets;
|
|
var labels = data.labels;
|
|
|
|
if (datasets.length) {
|
|
for (var i = 0; i < datasets[0].data.length; ++i) {
|
|
text.push('<li><span style="background-color:' + datasets[0].backgroundColor[i] + '">');
|
|
if (labels[i]) {
|
|
text.push(labels[i]);
|
|
}
|
|
text.push('</span></li>');
|
|
}
|
|
}
|
|
|
|
text.push('</ul>');
|
|
return text.join("");
|
|
},
|
|
legend: {
|
|
labels: {
|
|
generateLabels: function(chart) {
|
|
var data = chart.data;
|
|
if (data.labels.length && data.datasets.length) {
|
|
return data.labels.map(function(label, i) {
|
|
var meta = chart.getDatasetMeta(0);
|
|
var ds = data.datasets[0];
|
|
var arc = meta.data[i];
|
|
var custom = arc.custom || {};
|
|
var getValueAtIndexOrDefault = helpers.getValueAtIndexOrDefault;
|
|
var arcOpts = chart.options.elements.arc;
|
|
var fill = custom.backgroundColor ? custom.backgroundColor : getValueAtIndexOrDefault(ds.backgroundColor, i, arcOpts.backgroundColor);
|
|
var stroke = custom.borderColor ? custom.borderColor : getValueAtIndexOrDefault(ds.borderColor, i, arcOpts.borderColor);
|
|
var bw = custom.borderWidth ? custom.borderWidth : getValueAtIndexOrDefault(ds.borderWidth, i, arcOpts.borderWidth);
|
|
|
|
return {
|
|
text: label,
|
|
fillStyle: fill,
|
|
strokeStyle: stroke,
|
|
lineWidth: bw,
|
|
hidden: isNaN(ds.data[i]) || meta.data[i].hidden,
|
|
|
|
// Extra data used for toggling the correct item
|
|
index: i
|
|
};
|
|
});
|
|
} else {
|
|
return [];
|
|
}
|
|
}
|
|
},
|
|
|
|
onClick: function(e, legendItem) {
|
|
var index = legendItem.index;
|
|
var chart = this.chart;
|
|
var i, ilen, meta;
|
|
|
|
for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
|
|
meta = chart.getDatasetMeta(i);
|
|
meta.data[index].hidden = !meta.data[index].hidden;
|
|
}
|
|
|
|
chart.update();
|
|
}
|
|
},
|
|
|
|
// Need to override these to give a nice default
|
|
tooltips: {
|
|
callbacks: {
|
|
title: function() {
|
|
return '';
|
|
},
|
|
label: function(tooltipItem, data) {
|
|
return data.labels[tooltipItem.index] + ': ' + tooltipItem.yLabel;
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
Chart.controllers.polarArea = Chart.DatasetController.extend({
|
|
|
|
dataElementType: Chart.elements.Arc,
|
|
|
|
linkScales: helpers.noop,
|
|
|
|
update: function(reset) {
|
|
var me = this;
|
|
var chart = me.chart;
|
|
var chartArea = chart.chartArea;
|
|
var meta = me.getMeta();
|
|
var opts = chart.options;
|
|
var arcOpts = opts.elements.arc;
|
|
var minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top);
|
|
chart.outerRadius = Math.max((minSize - arcOpts.borderWidth / 2) / 2, 0);
|
|
chart.innerRadius = Math.max(opts.cutoutPercentage ? (chart.outerRadius / 100) * (opts.cutoutPercentage) : 1, 0);
|
|
chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount();
|
|
|
|
me.outerRadius = chart.outerRadius - (chart.radiusLength * me.index);
|
|
me.innerRadius = me.outerRadius - chart.radiusLength;
|
|
|
|
meta.count = me.countVisibleElements();
|
|
|
|
helpers.each(meta.data, function(arc, index) {
|
|
me.updateElement(arc, index, reset);
|
|
});
|
|
},
|
|
|
|
updateElement: function(arc, index, reset) {
|
|
var me = this;
|
|
var chart = me.chart;
|
|
var dataset = me.getDataset();
|
|
var opts = chart.options;
|
|
var animationOpts = opts.animation;
|
|
var scale = chart.scale;
|
|
var getValueAtIndexOrDefault = helpers.getValueAtIndexOrDefault;
|
|
var labels = chart.data.labels;
|
|
|
|
var circumference = me.calculateCircumference(dataset.data[index]);
|
|
var centerX = scale.xCenter;
|
|
var centerY = scale.yCenter;
|
|
|
|
// If there is NaN data before us, we need to calculate the starting angle correctly.
|
|
// We could be way more efficient here, but its unlikely that the polar area chart will have a lot of data
|
|
var visibleCount = 0;
|
|
var meta = me.getMeta();
|
|
for (var i = 0; i < index; ++i) {
|
|
if (!isNaN(dataset.data[i]) && !meta.data[i].hidden) {
|
|
++visibleCount;
|
|
}
|
|
}
|
|
|
|
//var negHalfPI = -0.5 * Math.PI;
|
|
var datasetStartAngle = opts.startAngle;
|
|
var distance = arc.hidden ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);
|
|
var startAngle = datasetStartAngle + (circumference * visibleCount);
|
|
var endAngle = startAngle + (arc.hidden ? 0 : circumference);
|
|
|
|
var resetRadius = animationOpts.animateScale ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);
|
|
|
|
helpers.extend(arc, {
|
|
// Utility
|
|
_datasetIndex: me.index,
|
|
_index: index,
|
|
_scale: scale,
|
|
|
|
// Desired view properties
|
|
_model: {
|
|
x: centerX,
|
|
y: centerY,
|
|
innerRadius: 0,
|
|
outerRadius: reset ? resetRadius : distance,
|
|
startAngle: reset && animationOpts.animateRotate ? datasetStartAngle : startAngle,
|
|
endAngle: reset && animationOpts.animateRotate ? datasetStartAngle : endAngle,
|
|
label: getValueAtIndexOrDefault(labels, index, labels[index])
|
|
}
|
|
});
|
|
|
|
// Apply border and fill style
|
|
me.removeHoverStyle(arc);
|
|
|
|
arc.pivot();
|
|
},
|
|
|
|
removeHoverStyle: function(arc) {
|
|
Chart.DatasetController.prototype.removeHoverStyle.call(this, arc, this.chart.options.elements.arc);
|
|
},
|
|
|
|
countVisibleElements: function() {
|
|
var dataset = this.getDataset();
|
|
var meta = this.getMeta();
|
|
var count = 0;
|
|
|
|
helpers.each(meta.data, function(element, index) {
|
|
if (!isNaN(dataset.data[index]) && !element.hidden) {
|
|
count++;
|
|
}
|
|
});
|
|
|
|
return count;
|
|
},
|
|
|
|
calculateCircumference: function(value) {
|
|
var count = this.getMeta().count;
|
|
if (count > 0 && !isNaN(value)) {
|
|
return (2 * Math.PI) / count;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
});
|
|
};
|
|
|
|
},{}],20:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
|
|
Chart.defaults.radar = {
|
|
scale: {
|
|
type: "radialLinear"
|
|
},
|
|
elements: {
|
|
line: {
|
|
tension: 0 // no bezier in radar
|
|
}
|
|
}
|
|
};
|
|
|
|
Chart.controllers.radar = Chart.DatasetController.extend({
|
|
|
|
datasetElementType: Chart.elements.Line,
|
|
|
|
dataElementType: Chart.elements.Point,
|
|
|
|
linkScales: helpers.noop,
|
|
|
|
addElementAndReset: function(index) {
|
|
Chart.DatasetController.prototype.addElementAndReset.call(this, index);
|
|
|
|
// Make sure bezier control points are updated
|
|
this.updateBezierControlPoints();
|
|
},
|
|
|
|
update: function(reset) {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var line = meta.dataset;
|
|
var points = meta.data;
|
|
var custom = line.custom || {};
|
|
var dataset = me.getDataset();
|
|
var lineElementOptions = me.chart.options.elements.line;
|
|
var scale = me.chart.scale;
|
|
|
|
// Compatibility: If the properties are defined with only the old name, use those values
|
|
if ((dataset.tension !== undefined) && (dataset.lineTension === undefined)) {
|
|
dataset.lineTension = dataset.tension;
|
|
}
|
|
|
|
helpers.extend(meta.dataset, {
|
|
// Utility
|
|
_datasetIndex: me.index,
|
|
// Data
|
|
_children: points,
|
|
_loop: true,
|
|
// Model
|
|
_model: {
|
|
// Appearance
|
|
tension: custom.tension ? custom.tension : helpers.getValueOrDefault(dataset.lineTension, lineElementOptions.tension),
|
|
backgroundColor: custom.backgroundColor ? custom.backgroundColor : (dataset.backgroundColor || lineElementOptions.backgroundColor),
|
|
borderWidth: custom.borderWidth ? custom.borderWidth : (dataset.borderWidth || lineElementOptions.borderWidth),
|
|
borderColor: custom.borderColor ? custom.borderColor : (dataset.borderColor || lineElementOptions.borderColor),
|
|
fill: custom.fill ? custom.fill : (dataset.fill !== undefined ? dataset.fill : lineElementOptions.fill),
|
|
borderCapStyle: custom.borderCapStyle ? custom.borderCapStyle : (dataset.borderCapStyle || lineElementOptions.borderCapStyle),
|
|
borderDash: custom.borderDash ? custom.borderDash : (dataset.borderDash || lineElementOptions.borderDash),
|
|
borderDashOffset: custom.borderDashOffset ? custom.borderDashOffset : (dataset.borderDashOffset || lineElementOptions.borderDashOffset),
|
|
borderJoinStyle: custom.borderJoinStyle ? custom.borderJoinStyle : (dataset.borderJoinStyle || lineElementOptions.borderJoinStyle),
|
|
|
|
// Scale
|
|
scaleTop: scale.top,
|
|
scaleBottom: scale.bottom,
|
|
scaleZero: scale.getBasePosition()
|
|
}
|
|
});
|
|
|
|
meta.dataset.pivot();
|
|
|
|
// Update Points
|
|
helpers.each(points, function(point, index) {
|
|
me.updateElement(point, index, reset);
|
|
}, me);
|
|
|
|
|
|
// Update bezier control points
|
|
me.updateBezierControlPoints();
|
|
},
|
|
updateElement: function(point, index, reset) {
|
|
var me = this;
|
|
var custom = point.custom || {};
|
|
var dataset = me.getDataset();
|
|
var scale = me.chart.scale;
|
|
var pointElementOptions = me.chart.options.elements.point;
|
|
var pointPosition = scale.getPointPositionForValue(index, dataset.data[index]);
|
|
|
|
helpers.extend(point, {
|
|
// Utility
|
|
_datasetIndex: me.index,
|
|
_index: index,
|
|
_scale: scale,
|
|
|
|
// Desired view properties
|
|
_model: {
|
|
x: reset ? scale.xCenter : pointPosition.x, // value not used in dataset scale, but we want a consistent API between scales
|
|
y: reset ? scale.yCenter : pointPosition.y,
|
|
|
|
// Appearance
|
|
tension: custom.tension ? custom.tension : helpers.getValueOrDefault(dataset.tension, me.chart.options.elements.line.tension),
|
|
radius: custom.radius ? custom.radius : helpers.getValueAtIndexOrDefault(dataset.pointRadius, index, pointElementOptions.radius),
|
|
backgroundColor: custom.backgroundColor ? custom.backgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointBackgroundColor, index, pointElementOptions.backgroundColor),
|
|
borderColor: custom.borderColor ? custom.borderColor : helpers.getValueAtIndexOrDefault(dataset.pointBorderColor, index, pointElementOptions.borderColor),
|
|
borderWidth: custom.borderWidth ? custom.borderWidth : helpers.getValueAtIndexOrDefault(dataset.pointBorderWidth, index, pointElementOptions.borderWidth),
|
|
pointStyle: custom.pointStyle ? custom.pointStyle : helpers.getValueAtIndexOrDefault(dataset.pointStyle, index, pointElementOptions.pointStyle),
|
|
|
|
// Tooltip
|
|
hitRadius: custom.hitRadius ? custom.hitRadius : helpers.getValueAtIndexOrDefault(dataset.hitRadius, index, pointElementOptions.hitRadius)
|
|
}
|
|
});
|
|
|
|
point._model.skip = custom.skip ? custom.skip : (isNaN(point._model.x) || isNaN(point._model.y));
|
|
},
|
|
updateBezierControlPoints: function() {
|
|
var chartArea = this.chart.chartArea;
|
|
var meta = this.getMeta();
|
|
|
|
helpers.each(meta.data, function(point, index) {
|
|
var model = point._model;
|
|
var controlPoints = helpers.splineCurve(
|
|
helpers.previousItem(meta.data, index, true)._model,
|
|
model,
|
|
helpers.nextItem(meta.data, index, true)._model,
|
|
model.tension
|
|
);
|
|
|
|
// Prevent the bezier going outside of the bounds of the graph
|
|
model.controlPointPreviousX = Math.max(Math.min(controlPoints.previous.x, chartArea.right), chartArea.left);
|
|
model.controlPointPreviousY = Math.max(Math.min(controlPoints.previous.y, chartArea.bottom), chartArea.top);
|
|
|
|
model.controlPointNextX = Math.max(Math.min(controlPoints.next.x, chartArea.right), chartArea.left);
|
|
model.controlPointNextY = Math.max(Math.min(controlPoints.next.y, chartArea.bottom), chartArea.top);
|
|
|
|
// Now pivot the point for animation
|
|
point.pivot();
|
|
});
|
|
},
|
|
|
|
draw: function(ease) {
|
|
var meta = this.getMeta();
|
|
var easingDecimal = ease || 1;
|
|
|
|
// Transition Point Locations
|
|
helpers.each(meta.data, function(point) {
|
|
point.transition(easingDecimal);
|
|
});
|
|
|
|
// Transition and Draw the line
|
|
meta.dataset.transition(easingDecimal).draw();
|
|
|
|
// Draw the points
|
|
helpers.each(meta.data, function(point) {
|
|
point.draw();
|
|
});
|
|
},
|
|
|
|
setHoverStyle: function(point) {
|
|
// Point
|
|
var dataset = this.chart.data.datasets[point._datasetIndex];
|
|
var custom = point.custom || {};
|
|
var index = point._index;
|
|
var model = point._model;
|
|
|
|
model.radius = custom.hoverRadius ? custom.hoverRadius : helpers.getValueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius);
|
|
model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor));
|
|
model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.getHoverColor(model.borderColor));
|
|
model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, model.borderWidth);
|
|
},
|
|
|
|
removeHoverStyle: function(point) {
|
|
var dataset = this.chart.data.datasets[point._datasetIndex];
|
|
var custom = point.custom || {};
|
|
var index = point._index;
|
|
var model = point._model;
|
|
var pointElementOptions = this.chart.options.elements.point;
|
|
|
|
model.radius = custom.radius ? custom.radius : helpers.getValueAtIndexOrDefault(dataset.radius, index, pointElementOptions.radius);
|
|
model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointBackgroundColor, index, pointElementOptions.backgroundColor);
|
|
model.borderColor = custom.borderColor ? custom.borderColor : helpers.getValueAtIndexOrDefault(dataset.pointBorderColor, index, pointElementOptions.borderColor);
|
|
model.borderWidth = custom.borderWidth ? custom.borderWidth : helpers.getValueAtIndexOrDefault(dataset.pointBorderWidth, index, pointElementOptions.borderWidth);
|
|
}
|
|
});
|
|
};
|
|
|
|
},{}],21:[function(require,module,exports){
|
|
/*global window: false */
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
|
|
Chart.defaults.global.animation = {
|
|
duration: 1000,
|
|
easing: "easeOutQuart",
|
|
onProgress: helpers.noop,
|
|
onComplete: helpers.noop
|
|
};
|
|
|
|
Chart.Animation = Chart.Element.extend({
|
|
currentStep: null, // the current animation step
|
|
numSteps: 60, // default number of steps
|
|
easing: "", // the easing to use for this animation
|
|
render: null, // render function used by the animation service
|
|
|
|
onAnimationProgress: null, // user specified callback to fire on each step of the animation
|
|
onAnimationComplete: null // user specified callback to fire when the animation finishes
|
|
});
|
|
|
|
Chart.animationService = {
|
|
frameDuration: 17,
|
|
animations: [],
|
|
dropFrames: 0,
|
|
request: null,
|
|
addAnimation: function(chartInstance, animationObject, duration, lazy) {
|
|
var me = this;
|
|
|
|
if (!lazy) {
|
|
chartInstance.animating = true;
|
|
}
|
|
|
|
for (var index = 0; index < me.animations.length; ++index) {
|
|
if (me.animations[index].chartInstance === chartInstance) {
|
|
// replacing an in progress animation
|
|
me.animations[index].animationObject = animationObject;
|
|
return;
|
|
}
|
|
}
|
|
|
|
me.animations.push({
|
|
chartInstance: chartInstance,
|
|
animationObject: animationObject
|
|
});
|
|
|
|
// If there are no animations queued, manually kickstart a digest, for lack of a better word
|
|
if (me.animations.length === 1) {
|
|
me.requestAnimationFrame();
|
|
}
|
|
},
|
|
// Cancel the animation for a given chart instance
|
|
cancelAnimation: function(chartInstance) {
|
|
var index = helpers.findIndex(this.animations, function(animationWrapper) {
|
|
return animationWrapper.chartInstance === chartInstance;
|
|
});
|
|
|
|
if (index !== -1) {
|
|
this.animations.splice(index, 1);
|
|
chartInstance.animating = false;
|
|
}
|
|
},
|
|
requestAnimationFrame: function() {
|
|
var me = this;
|
|
if (me.request === null) {
|
|
// Skip animation frame requests until the active one is executed.
|
|
// This can happen when processing mouse events, e.g. 'mousemove'
|
|
// and 'mouseout' events will trigger multiple renders.
|
|
me.request = helpers.requestAnimFrame.call(window, function() {
|
|
me.request = null;
|
|
me.startDigest();
|
|
});
|
|
}
|
|
},
|
|
startDigest: function() {
|
|
var me = this;
|
|
|
|
var startTime = Date.now();
|
|
var framesToDrop = 0;
|
|
|
|
if (me.dropFrames > 1) {
|
|
framesToDrop = Math.floor(me.dropFrames);
|
|
me.dropFrames = me.dropFrames % 1;
|
|
}
|
|
|
|
var i = 0;
|
|
while (i < me.animations.length) {
|
|
if (me.animations[i].animationObject.currentStep === null) {
|
|
me.animations[i].animationObject.currentStep = 0;
|
|
}
|
|
|
|
me.animations[i].animationObject.currentStep += 1 + framesToDrop;
|
|
|
|
if (me.animations[i].animationObject.currentStep > me.animations[i].animationObject.numSteps) {
|
|
me.animations[i].animationObject.currentStep = me.animations[i].animationObject.numSteps;
|
|
}
|
|
|
|
me.animations[i].animationObject.render(me.animations[i].chartInstance, me.animations[i].animationObject);
|
|
if (me.animations[i].animationObject.onAnimationProgress && me.animations[i].animationObject.onAnimationProgress.call) {
|
|
me.animations[i].animationObject.onAnimationProgress.call(me.animations[i].chartInstance, me.animations[i]);
|
|
}
|
|
|
|
if (me.animations[i].animationObject.currentStep === me.animations[i].animationObject.numSteps) {
|
|
if (me.animations[i].animationObject.onAnimationComplete && me.animations[i].animationObject.onAnimationComplete.call) {
|
|
me.animations[i].animationObject.onAnimationComplete.call(me.animations[i].chartInstance, me.animations[i]);
|
|
}
|
|
|
|
// executed the last frame. Remove the animation.
|
|
me.animations[i].chartInstance.animating = false;
|
|
|
|
me.animations.splice(i, 1);
|
|
} else {
|
|
++i;
|
|
}
|
|
}
|
|
|
|
var endTime = Date.now();
|
|
var dropFrames = (endTime - startTime) / me.frameDuration;
|
|
|
|
me.dropFrames += dropFrames;
|
|
|
|
// Do we have more stuff to animate?
|
|
if (me.animations.length > 0) {
|
|
me.requestAnimationFrame();
|
|
}
|
|
}
|
|
};
|
|
};
|
|
},{}],22:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
// Global Chart canvas helpers object for drawing items to canvas
|
|
var helpers = Chart.canvasHelpers = {};
|
|
|
|
helpers.drawPoint = function(ctx, pointStyle, radius, x, y) {
|
|
var type, edgeLength, xOffset, yOffset, height, size;
|
|
|
|
if (typeof pointStyle === 'object') {
|
|
type = pointStyle.toString();
|
|
if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') {
|
|
ctx.drawImage(pointStyle, x - pointStyle.width / 2, y - pointStyle.height / 2);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (isNaN(radius) || radius <= 0) {
|
|
return;
|
|
}
|
|
|
|
switch (pointStyle) {
|
|
// Default includes circle
|
|
default:
|
|
ctx.beginPath();
|
|
ctx.arc(x, y, radius, 0, Math.PI * 2);
|
|
ctx.closePath();
|
|
ctx.fill();
|
|
break;
|
|
case 'triangle':
|
|
ctx.beginPath();
|
|
edgeLength = 3 * radius / Math.sqrt(3);
|
|
height = edgeLength * Math.sqrt(3) / 2;
|
|
ctx.moveTo(x - edgeLength / 2, y + height / 3);
|
|
ctx.lineTo(x + edgeLength / 2, y + height / 3);
|
|
ctx.lineTo(x, y - 2 * height / 3);
|
|
ctx.closePath();
|
|
ctx.fill();
|
|
break;
|
|
case 'rect':
|
|
size = 1 / Math.SQRT2 * radius;
|
|
ctx.beginPath();
|
|
ctx.fillRect(x - size, y - size, 2 * size, 2 * size);
|
|
ctx.strokeRect(x - size, y - size, 2 * size, 2 * size);
|
|
break;
|
|
case 'rectRot':
|
|
size = 1 / Math.SQRT2 * radius;
|
|
ctx.beginPath();
|
|
ctx.moveTo(x - size, y);
|
|
ctx.lineTo(x, y + size);
|
|
ctx.lineTo(x + size, y);
|
|
ctx.lineTo(x, y - size);
|
|
ctx.closePath();
|
|
ctx.fill();
|
|
break;
|
|
case 'cross':
|
|
ctx.beginPath();
|
|
ctx.moveTo(x, y + radius);
|
|
ctx.lineTo(x, y - radius);
|
|
ctx.moveTo(x - radius, y);
|
|
ctx.lineTo(x + radius, y);
|
|
ctx.closePath();
|
|
break;
|
|
case 'crossRot':
|
|
ctx.beginPath();
|
|
xOffset = Math.cos(Math.PI / 4) * radius;
|
|
yOffset = Math.sin(Math.PI / 4) * radius;
|
|
ctx.moveTo(x - xOffset, y - yOffset);
|
|
ctx.lineTo(x + xOffset, y + yOffset);
|
|
ctx.moveTo(x - xOffset, y + yOffset);
|
|
ctx.lineTo(x + xOffset, y - yOffset);
|
|
ctx.closePath();
|
|
break;
|
|
case 'star':
|
|
ctx.beginPath();
|
|
ctx.moveTo(x, y + radius);
|
|
ctx.lineTo(x, y - radius);
|
|
ctx.moveTo(x - radius, y);
|
|
ctx.lineTo(x + radius, y);
|
|
xOffset = Math.cos(Math.PI / 4) * radius;
|
|
yOffset = Math.sin(Math.PI / 4) * radius;
|
|
ctx.moveTo(x - xOffset, y - yOffset);
|
|
ctx.lineTo(x + xOffset, y + yOffset);
|
|
ctx.moveTo(x - xOffset, y + yOffset);
|
|
ctx.lineTo(x + xOffset, y - yOffset);
|
|
ctx.closePath();
|
|
break;
|
|
case 'line':
|
|
ctx.beginPath();
|
|
ctx.moveTo(x - radius, y);
|
|
ctx.lineTo(x + radius, y);
|
|
ctx.closePath();
|
|
break;
|
|
case 'dash':
|
|
ctx.beginPath();
|
|
ctx.moveTo(x, y);
|
|
ctx.lineTo(x + radius, y);
|
|
ctx.closePath();
|
|
break;
|
|
}
|
|
|
|
ctx.stroke();
|
|
};
|
|
};
|
|
},{}],23:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
//Create a dictionary of chart types, to allow for extension of existing types
|
|
Chart.types = {};
|
|
|
|
//Store a reference to each instance - allowing us to globally resize chart instances on window resize.
|
|
//Destroy method on the chart will remove the instance of the chart from this reference.
|
|
Chart.instances = {};
|
|
|
|
// Controllers available for dataset visualization eg. bar, line, slice, etc.
|
|
Chart.controllers = {};
|
|
|
|
/**
|
|
* @class Chart.Controller
|
|
* The main controller of a chart.
|
|
*/
|
|
Chart.Controller = function(instance) {
|
|
|
|
this.chart = instance;
|
|
this.config = instance.config;
|
|
this.options = this.config.options = helpers.configMerge(Chart.defaults.global, Chart.defaults[this.config.type], this.config.options || {});
|
|
this.id = helpers.uid();
|
|
|
|
Object.defineProperty(this, 'data', {
|
|
get: function() {
|
|
return this.config.data;
|
|
}
|
|
});
|
|
|
|
//Add the chart instance to the global namespace
|
|
Chart.instances[this.id] = this;
|
|
|
|
if (this.options.responsive) {
|
|
// Silent resize before chart draws
|
|
this.resize(true);
|
|
}
|
|
|
|
this.initialize();
|
|
|
|
return this;
|
|
};
|
|
|
|
helpers.extend(Chart.Controller.prototype, /** @lends Chart.Controller */ {
|
|
|
|
initialize: function() {
|
|
var me = this;
|
|
// Before init plugin notification
|
|
Chart.plugins.notify('beforeInit', [me]);
|
|
|
|
me.bindEvents();
|
|
|
|
// Make sure controllers are built first so that each dataset is bound to an axis before the scales
|
|
// are built
|
|
me.ensureScalesHaveIDs();
|
|
me.buildOrUpdateControllers();
|
|
me.buildScales();
|
|
me.updateLayout();
|
|
me.resetElements();
|
|
me.initToolTip();
|
|
me.update();
|
|
|
|
// After init plugin notification
|
|
Chart.plugins.notify('afterInit', [me]);
|
|
|
|
return me;
|
|
},
|
|
|
|
clear: function() {
|
|
helpers.clear(this.chart);
|
|
return this;
|
|
},
|
|
|
|
stop: function() {
|
|
// Stops any current animation loop occuring
|
|
Chart.animationService.cancelAnimation(this);
|
|
return this;
|
|
},
|
|
|
|
resize: function resize(silent) {
|
|
var me = this;
|
|
var chart = me.chart;
|
|
var canvas = chart.canvas;
|
|
var newWidth = helpers.getMaximumWidth(canvas);
|
|
var aspectRatio = chart.aspectRatio;
|
|
var newHeight = (me.options.maintainAspectRatio && isNaN(aspectRatio) === false && isFinite(aspectRatio) && aspectRatio !== 0) ? newWidth / aspectRatio : helpers.getMaximumHeight(canvas);
|
|
|
|
var sizeChanged = chart.width !== newWidth || chart.height !== newHeight;
|
|
|
|
if (!sizeChanged) {
|
|
return me;
|
|
}
|
|
|
|
canvas.width = chart.width = newWidth;
|
|
canvas.height = chart.height = newHeight;
|
|
|
|
helpers.retinaScale(chart);
|
|
|
|
// Notify any plugins about the resize
|
|
var newSize = { width: newWidth, height: newHeight };
|
|
Chart.plugins.notify('resize', [me, newSize]);
|
|
|
|
// Notify of resize
|
|
if (me.options.onResize) {
|
|
me.options.onResize(me, newSize);
|
|
}
|
|
|
|
if (!silent) {
|
|
me.stop();
|
|
me.update(me.options.responsiveAnimationDuration);
|
|
}
|
|
|
|
return me;
|
|
},
|
|
|
|
ensureScalesHaveIDs: function() {
|
|
var options = this.options;
|
|
var scalesOptions = options.scales || {};
|
|
var scaleOptions = options.scale;
|
|
|
|
helpers.each(scalesOptions.xAxes, function(xAxisOptions, index) {
|
|
xAxisOptions.id = xAxisOptions.id || ('x-axis-' + index);
|
|
});
|
|
|
|
helpers.each(scalesOptions.yAxes, function(yAxisOptions, index) {
|
|
yAxisOptions.id = yAxisOptions.id || ('y-axis-' + index);
|
|
});
|
|
|
|
if (scaleOptions) {
|
|
scaleOptions.id = scaleOptions.id || 'scale';
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Builds a map of scale ID to scale object for future lookup.
|
|
*/
|
|
buildScales: function() {
|
|
var me = this;
|
|
var options = me.options;
|
|
var scales = me.scales = {};
|
|
var items = [];
|
|
|
|
if (options.scales) {
|
|
items = items.concat(
|
|
(options.scales.xAxes || []).map(function(xAxisOptions) {
|
|
return { options: xAxisOptions, dtype: 'category' }; }),
|
|
(options.scales.yAxes || []).map(function(yAxisOptions) {
|
|
return { options: yAxisOptions, dtype: 'linear' }; }));
|
|
}
|
|
|
|
if (options.scale) {
|
|
items.push({ options: options.scale, dtype: 'radialLinear', isDefault: true });
|
|
}
|
|
|
|
helpers.each(items, function(item) {
|
|
var scaleOptions = item.options;
|
|
var scaleType = helpers.getValueOrDefault(scaleOptions.type, item.dtype);
|
|
var scaleClass = Chart.scaleService.getScaleConstructor(scaleType);
|
|
if (!scaleClass) {
|
|
return;
|
|
}
|
|
|
|
var scale = new scaleClass({
|
|
id: scaleOptions.id,
|
|
options: scaleOptions,
|
|
ctx: me.chart.ctx,
|
|
chart: me
|
|
});
|
|
|
|
scales[scale.id] = scale;
|
|
|
|
// TODO(SB): I think we should be able to remove this custom case (options.scale)
|
|
// and consider it as a regular scale part of the "scales"" map only! This would
|
|
// make the logic easier and remove some useless? custom code.
|
|
if (item.isDefault) {
|
|
me.scale = scale;
|
|
}
|
|
});
|
|
|
|
Chart.scaleService.addScalesToLayout(this);
|
|
},
|
|
|
|
updateLayout: function() {
|
|
Chart.layoutService.update(this, this.chart.width, this.chart.height);
|
|
},
|
|
|
|
buildOrUpdateControllers: function() {
|
|
var me = this;
|
|
var types = [];
|
|
var newControllers = [];
|
|
|
|
helpers.each(me.data.datasets, function(dataset, datasetIndex) {
|
|
var meta = me.getDatasetMeta(datasetIndex);
|
|
if (!meta.type) {
|
|
meta.type = dataset.type || me.config.type;
|
|
}
|
|
|
|
types.push(meta.type);
|
|
|
|
if (meta.controller) {
|
|
meta.controller.updateIndex(datasetIndex);
|
|
} else {
|
|
meta.controller = new Chart.controllers[meta.type](me, datasetIndex);
|
|
newControllers.push(meta.controller);
|
|
}
|
|
}, me);
|
|
|
|
if (types.length > 1) {
|
|
for (var i = 1; i < types.length; i++) {
|
|
if (types[i] !== types[i - 1]) {
|
|
me.isCombo = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return newControllers;
|
|
},
|
|
|
|
resetElements: function() {
|
|
var me = this;
|
|
helpers.each(me.data.datasets, function(dataset, datasetIndex) {
|
|
me.getDatasetMeta(datasetIndex).controller.reset();
|
|
}, me);
|
|
},
|
|
|
|
update: function update(animationDuration, lazy) {
|
|
var me = this;
|
|
Chart.plugins.notify('beforeUpdate', [me]);
|
|
|
|
// In case the entire data object changed
|
|
me.tooltip._data = me.data;
|
|
|
|
// Make sure dataset controllers are updated and new controllers are reset
|
|
var newControllers = me.buildOrUpdateControllers();
|
|
|
|
// Make sure all dataset controllers have correct meta data counts
|
|
helpers.each(me.data.datasets, function(dataset, datasetIndex) {
|
|
me.getDatasetMeta(datasetIndex).controller.buildOrUpdateElements();
|
|
}, me);
|
|
|
|
Chart.layoutService.update(me, me.chart.width, me.chart.height);
|
|
|
|
// Apply changes to the dataets that require the scales to have been calculated i.e BorderColor chages
|
|
Chart.plugins.notify('afterScaleUpdate', [me]);
|
|
|
|
// Can only reset the new controllers after the scales have been updated
|
|
helpers.each(newControllers, function(controller) {
|
|
controller.reset();
|
|
});
|
|
|
|
me.updateDatasets();
|
|
|
|
// Do this before render so that any plugins that need final scale updates can use it
|
|
Chart.plugins.notify('afterUpdate', [me]);
|
|
|
|
me.render(animationDuration, lazy);
|
|
},
|
|
|
|
/**
|
|
* @method beforeDatasetsUpdate
|
|
* @description Called before all datasets are updated. If a plugin returns false,
|
|
* the datasets update will be cancelled until another chart update is triggered.
|
|
* @param {Object} instance the chart instance being updated.
|
|
* @returns {Boolean} false to cancel the datasets update.
|
|
* @memberof Chart.PluginBase
|
|
* @since version 2.1.5
|
|
* @instance
|
|
*/
|
|
|
|
/**
|
|
* @method afterDatasetsUpdate
|
|
* @description Called after all datasets have been updated. Note that this
|
|
* extension will not be called if the datasets update has been cancelled.
|
|
* @param {Object} instance the chart instance being updated.
|
|
* @memberof Chart.PluginBase
|
|
* @since version 2.1.5
|
|
* @instance
|
|
*/
|
|
|
|
/**
|
|
* Updates all datasets unless a plugin returns false to the beforeDatasetsUpdate
|
|
* extension, in which case no datasets will be updated and the afterDatasetsUpdate
|
|
* notification will be skipped.
|
|
* @protected
|
|
* @instance
|
|
*/
|
|
updateDatasets: function() {
|
|
var me = this;
|
|
var i, ilen;
|
|
|
|
if (Chart.plugins.notify('beforeDatasetsUpdate', [ me ])) {
|
|
for (i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
|
|
me.getDatasetMeta(i).controller.update();
|
|
}
|
|
|
|
Chart.plugins.notify('afterDatasetsUpdate', [ me ]);
|
|
}
|
|
},
|
|
|
|
render: function render(duration, lazy) {
|
|
var me = this;
|
|
Chart.plugins.notify('beforeRender', [me]);
|
|
|
|
var animationOptions = me.options.animation;
|
|
if (animationOptions && ((typeof duration !== 'undefined' && duration !== 0) || (typeof duration === 'undefined' && animationOptions.duration !== 0))) {
|
|
var animation = new Chart.Animation();
|
|
animation.numSteps = (duration || animationOptions.duration) / 16.66; //60 fps
|
|
animation.easing = animationOptions.easing;
|
|
|
|
// render function
|
|
animation.render = function(chartInstance, animationObject) {
|
|
var easingFunction = helpers.easingEffects[animationObject.easing];
|
|
var stepDecimal = animationObject.currentStep / animationObject.numSteps;
|
|
var easeDecimal = easingFunction(stepDecimal);
|
|
|
|
chartInstance.draw(easeDecimal, stepDecimal, animationObject.currentStep);
|
|
};
|
|
|
|
// user events
|
|
animation.onAnimationProgress = animationOptions.onProgress;
|
|
animation.onAnimationComplete = animationOptions.onComplete;
|
|
|
|
Chart.animationService.addAnimation(me, animation, duration, lazy);
|
|
} else {
|
|
me.draw();
|
|
if (animationOptions && animationOptions.onComplete && animationOptions.onComplete.call) {
|
|
animationOptions.onComplete.call(me);
|
|
}
|
|
}
|
|
return me;
|
|
},
|
|
|
|
draw: function(ease) {
|
|
var me = this;
|
|
var easingDecimal = ease || 1;
|
|
me.clear();
|
|
|
|
Chart.plugins.notify('beforeDraw', [me, easingDecimal]);
|
|
|
|
// Draw all the scales
|
|
helpers.each(me.boxes, function(box) {
|
|
box.draw(me.chartArea);
|
|
}, me);
|
|
if (me.scale) {
|
|
me.scale.draw();
|
|
}
|
|
|
|
Chart.plugins.notify('beforeDatasetsDraw', [me, easingDecimal]);
|
|
|
|
// Draw each dataset via its respective controller (reversed to support proper line stacking)
|
|
helpers.each(me.data.datasets, function(dataset, datasetIndex) {
|
|
if (me.isDatasetVisible(datasetIndex)) {
|
|
me.getDatasetMeta(datasetIndex).controller.draw(ease);
|
|
}
|
|
}, me, true);
|
|
|
|
Chart.plugins.notify('afterDatasetsDraw', [me, easingDecimal]);
|
|
|
|
// Finally draw the tooltip
|
|
me.tooltip.transition(easingDecimal).draw();
|
|
|
|
Chart.plugins.notify('afterDraw', [me, easingDecimal]);
|
|
},
|
|
|
|
// Get the single element that was clicked on
|
|
// @return : An object containing the dataset index and element index of the matching element. Also contains the rectangle that was draw
|
|
getElementAtEvent: function(e) {
|
|
var me = this;
|
|
var eventPosition = helpers.getRelativePosition(e, me.chart);
|
|
var elementsArray = [];
|
|
|
|
helpers.each(me.data.datasets, function(dataset, datasetIndex) {
|
|
if (me.isDatasetVisible(datasetIndex)) {
|
|
var meta = me.getDatasetMeta(datasetIndex);
|
|
helpers.each(meta.data, function(element) {
|
|
if (element.inRange(eventPosition.x, eventPosition.y)) {
|
|
elementsArray.push(element);
|
|
return elementsArray;
|
|
}
|
|
});
|
|
}
|
|
});
|
|
|
|
return elementsArray.slice(0, 1);
|
|
},
|
|
|
|
getElementsAtEvent: function(e) {
|
|
var me = this;
|
|
var eventPosition = helpers.getRelativePosition(e, me.chart);
|
|
var elementsArray = [];
|
|
|
|
var found = (function() {
|
|
if (me.data.datasets) {
|
|
for (var i = 0; i < me.data.datasets.length; i++) {
|
|
var meta = me.getDatasetMeta(i);
|
|
if (me.isDatasetVisible(i)) {
|
|
for (var j = 0; j < meta.data.length; j++) {
|
|
if (meta.data[j].inRange(eventPosition.x, eventPosition.y)) {
|
|
return meta.data[j];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}).call(me);
|
|
|
|
if (!found) {
|
|
return elementsArray;
|
|
}
|
|
|
|
helpers.each(me.data.datasets, function(dataset, datasetIndex) {
|
|
if (me.isDatasetVisible(datasetIndex)) {
|
|
var meta = me.getDatasetMeta(datasetIndex),
|
|
element = meta.data[found._index];
|
|
if(element && !element._view.skip){
|
|
elementsArray.push(element);
|
|
}
|
|
}
|
|
}, me);
|
|
|
|
return elementsArray;
|
|
},
|
|
|
|
getElementsAtXAxis: function(e) {
|
|
var me = this;
|
|
var eventPosition = helpers.getRelativePosition(e, me.chart);
|
|
var elementsArray = [];
|
|
|
|
var found = (function() {
|
|
if (me.data.datasets) {
|
|
for (var i = 0; i < me.data.datasets.length; i++) {
|
|
var meta = me.getDatasetMeta(i);
|
|
if (me.isDatasetVisible(i)) {
|
|
for (var j = 0; j < meta.data.length; j++) {
|
|
if (meta.data[j].inLabelRange(eventPosition.x, eventPosition.y)) {
|
|
return meta.data[j];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}).call(me);
|
|
|
|
if (!found) {
|
|
return elementsArray;
|
|
}
|
|
|
|
helpers.each(me.data.datasets, function(dataset, datasetIndex) {
|
|
if (me.isDatasetVisible(datasetIndex)) {
|
|
var meta = me.getDatasetMeta(datasetIndex);
|
|
var index = helpers.findIndex(meta.data, function (it) {
|
|
return found._model.x === it._model.x;
|
|
});
|
|
if(index !== -1 && !meta.data[index]._view.skip) {
|
|
elementsArray.push(meta.data[index]);
|
|
}
|
|
}
|
|
}, me);
|
|
|
|
return elementsArray;
|
|
},
|
|
|
|
getElementsAtEventForMode: function(e, mode) {
|
|
var me = this;
|
|
switch (mode) {
|
|
case 'single':
|
|
return me.getElementAtEvent(e);
|
|
case 'label':
|
|
return me.getElementsAtEvent(e);
|
|
case 'dataset':
|
|
return me.getDatasetAtEvent(e);
|
|
case 'x-axis':
|
|
return me.getElementsAtXAxis(e);
|
|
default:
|
|
return e;
|
|
}
|
|
},
|
|
|
|
getDatasetAtEvent: function(e) {
|
|
var elementsArray = this.getElementAtEvent(e);
|
|
|
|
if (elementsArray.length > 0) {
|
|
elementsArray = this.getDatasetMeta(elementsArray[0]._datasetIndex).data;
|
|
}
|
|
|
|
return elementsArray;
|
|
},
|
|
|
|
getDatasetMeta: function(datasetIndex) {
|
|
var me = this;
|
|
var dataset = me.data.datasets[datasetIndex];
|
|
if (!dataset._meta) {
|
|
dataset._meta = {};
|
|
}
|
|
|
|
var meta = dataset._meta[me.id];
|
|
if (!meta) {
|
|
meta = dataset._meta[me.id] = {
|
|
type: null,
|
|
data: [],
|
|
dataset: null,
|
|
controller: null,
|
|
hidden: null, // See isDatasetVisible() comment
|
|
xAxisID: null,
|
|
yAxisID: null
|
|
};
|
|
}
|
|
|
|
return meta;
|
|
},
|
|
|
|
getVisibleDatasetCount: function() {
|
|
var count = 0;
|
|
for (var i = 0, ilen = this.data.datasets.length; i<ilen; ++i) {
|
|
if (this.isDatasetVisible(i)) {
|
|
count++;
|
|
}
|
|
}
|
|
return count;
|
|
},
|
|
|
|
isDatasetVisible: function(datasetIndex) {
|
|
var meta = this.getDatasetMeta(datasetIndex);
|
|
|
|
// meta.hidden is a per chart dataset hidden flag override with 3 states: if true or false,
|
|
// the dataset.hidden value is ignored, else if null, the dataset hidden state is returned.
|
|
return typeof meta.hidden === 'boolean'? !meta.hidden : !this.data.datasets[datasetIndex].hidden;
|
|
},
|
|
|
|
generateLegend: function() {
|
|
return this.options.legendCallback(this);
|
|
},
|
|
|
|
destroy: function() {
|
|
var me = this;
|
|
me.stop();
|
|
me.clear();
|
|
helpers.unbindEvents(me, me.events);
|
|
helpers.removeResizeListener(me.chart.canvas.parentNode);
|
|
|
|
// Reset canvas height/width attributes
|
|
var canvas = me.chart.canvas;
|
|
canvas.width = me.chart.width;
|
|
canvas.height = me.chart.height;
|
|
|
|
// if we scaled the canvas in response to a devicePixelRatio !== 1, we need to undo that transform here
|
|
if (me.chart.originalDevicePixelRatio !== undefined) {
|
|
me.chart.ctx.scale(1 / me.chart.originalDevicePixelRatio, 1 / me.chart.originalDevicePixelRatio);
|
|
}
|
|
|
|
// Reset to the old style since it may have been changed by the device pixel ratio changes
|
|
canvas.style.width = me.chart.originalCanvasStyleWidth;
|
|
canvas.style.height = me.chart.originalCanvasStyleHeight;
|
|
|
|
Chart.plugins.notify('destroy', [me]);
|
|
|
|
delete Chart.instances[me.id];
|
|
},
|
|
|
|
toBase64Image: function() {
|
|
return this.chart.canvas.toDataURL.apply(this.chart.canvas, arguments);
|
|
},
|
|
|
|
initToolTip: function() {
|
|
var me = this;
|
|
me.tooltip = new Chart.Tooltip({
|
|
_chart: me.chart,
|
|
_chartInstance: me,
|
|
_data: me.data,
|
|
_options: me.options.tooltips
|
|
}, me);
|
|
},
|
|
|
|
bindEvents: function() {
|
|
var me = this;
|
|
helpers.bindEvents(me, me.options.events, function(evt) {
|
|
me.eventHandler(evt);
|
|
});
|
|
},
|
|
|
|
updateHoverStyle: function(elements, mode, enabled) {
|
|
var method = enabled? 'setHoverStyle' : 'removeHoverStyle';
|
|
var element, i, ilen;
|
|
|
|
switch (mode) {
|
|
case 'single':
|
|
elements = [ elements[0] ];
|
|
break;
|
|
case 'label':
|
|
case 'dataset':
|
|
case 'x-axis':
|
|
// elements = elements;
|
|
break;
|
|
default:
|
|
// unsupported mode
|
|
return;
|
|
}
|
|
|
|
for (i=0, ilen=elements.length; i<ilen; ++i) {
|
|
element = elements[i];
|
|
if (element) {
|
|
this.getDatasetMeta(element._datasetIndex).controller[method](element);
|
|
}
|
|
}
|
|
},
|
|
|
|
eventHandler: function eventHandler(e) {
|
|
var me = this;
|
|
var tooltip = me.tooltip;
|
|
var options = me.options || {};
|
|
var hoverOptions = options.hover;
|
|
var tooltipsOptions = options.tooltips;
|
|
|
|
me.lastActive = me.lastActive || [];
|
|
me.lastTooltipActive = me.lastTooltipActive || [];
|
|
|
|
// Find Active Elements for hover and tooltips
|
|
if (e.type === 'mouseout') {
|
|
me.active = [];
|
|
me.tooltipActive = [];
|
|
} else {
|
|
me.active = me.getElementsAtEventForMode(e, hoverOptions.mode);
|
|
me.tooltipActive = me.getElementsAtEventForMode(e, tooltipsOptions.mode);
|
|
}
|
|
|
|
// On Hover hook
|
|
if (hoverOptions.onHover) {
|
|
hoverOptions.onHover.call(me, me.active);
|
|
}
|
|
|
|
if (e.type === 'mouseup' || e.type === 'click') {
|
|
if (options.onClick) {
|
|
options.onClick.call(me, e, me.active);
|
|
}
|
|
if (me.legend && me.legend.handleEvent) {
|
|
me.legend.handleEvent(e);
|
|
}
|
|
}
|
|
|
|
// Remove styling for last active (even if it may still be active)
|
|
if (me.lastActive.length) {
|
|
me.updateHoverStyle(me.lastActive, hoverOptions.mode, false);
|
|
}
|
|
|
|
// Built in hover styling
|
|
if (me.active.length && hoverOptions.mode) {
|
|
me.updateHoverStyle(me.active, hoverOptions.mode, true);
|
|
}
|
|
|
|
// Built in Tooltips
|
|
if (tooltipsOptions.enabled || tooltipsOptions.custom) {
|
|
tooltip.initialize();
|
|
tooltip._active = me.tooltipActive;
|
|
tooltip.update(true);
|
|
}
|
|
|
|
// Hover animations
|
|
tooltip.pivot();
|
|
|
|
if (!me.animating) {
|
|
// If entering, leaving, or changing elements, animate the change via pivot
|
|
if (!helpers.arrayEquals(me.active, me.lastActive) ||
|
|
!helpers.arrayEquals(me.tooltipActive, me.lastTooltipActive)) {
|
|
|
|
me.stop();
|
|
|
|
if (tooltipsOptions.enabled || tooltipsOptions.custom) {
|
|
tooltip.update(true);
|
|
}
|
|
|
|
// We only need to render at this point. Updating will cause scales to be
|
|
// recomputed generating flicker & using more memory than necessary.
|
|
me.render(hoverOptions.animationDuration, true);
|
|
}
|
|
}
|
|
|
|
// Remember Last Actives
|
|
me.lastActive = me.active;
|
|
me.lastTooltipActive = me.tooltipActive;
|
|
return me;
|
|
}
|
|
});
|
|
};
|
|
|
|
},{}],24:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
var noop = helpers.noop;
|
|
|
|
// Base class for all dataset controllers (line, bar, etc)
|
|
Chart.DatasetController = function(chart, datasetIndex) {
|
|
this.initialize.call(this, chart, datasetIndex);
|
|
};
|
|
|
|
helpers.extend(Chart.DatasetController.prototype, {
|
|
|
|
/**
|
|
* Element type used to generate a meta dataset (e.g. Chart.element.Line).
|
|
* @type {Chart.core.element}
|
|
*/
|
|
datasetElementType: null,
|
|
|
|
/**
|
|
* Element type used to generate a meta data (e.g. Chart.element.Point).
|
|
* @type {Chart.core.element}
|
|
*/
|
|
dataElementType: null,
|
|
|
|
initialize: function(chart, datasetIndex) {
|
|
var me = this;
|
|
me.chart = chart;
|
|
me.index = datasetIndex;
|
|
me.linkScales();
|
|
me.addElements();
|
|
},
|
|
|
|
updateIndex: function(datasetIndex) {
|
|
this.index = datasetIndex;
|
|
},
|
|
|
|
linkScales: function() {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var dataset = me.getDataset();
|
|
|
|
if (meta.xAxisID === null) {
|
|
meta.xAxisID = dataset.xAxisID || me.chart.options.scales.xAxes[0].id;
|
|
}
|
|
if (meta.yAxisID === null) {
|
|
meta.yAxisID = dataset.yAxisID || me.chart.options.scales.yAxes[0].id;
|
|
}
|
|
},
|
|
|
|
getDataset: function() {
|
|
return this.chart.data.datasets[this.index];
|
|
},
|
|
|
|
getMeta: function() {
|
|
return this.chart.getDatasetMeta(this.index);
|
|
},
|
|
|
|
getScaleForId: function(scaleID) {
|
|
return this.chart.scales[scaleID];
|
|
},
|
|
|
|
reset: function() {
|
|
this.update(true);
|
|
},
|
|
|
|
createMetaDataset: function() {
|
|
var me = this;
|
|
var type = me.datasetElementType;
|
|
return type && new type({
|
|
_chart: me.chart.chart,
|
|
_datasetIndex: me.index
|
|
});
|
|
},
|
|
|
|
createMetaData: function(index) {
|
|
var me = this;
|
|
var type = me.dataElementType;
|
|
return type && new type({
|
|
_chart: me.chart.chart,
|
|
_datasetIndex: me.index,
|
|
_index: index
|
|
});
|
|
},
|
|
|
|
addElements: function() {
|
|
var me = this;
|
|
var meta = me.getMeta();
|
|
var data = me.getDataset().data || [];
|
|
var metaData = meta.data;
|
|
var i, ilen;
|
|
|
|
for (i=0, ilen=data.length; i<ilen; ++i) {
|
|
metaData[i] = metaData[i] || me.createMetaData(meta, i);
|
|
}
|
|
|
|
meta.dataset = meta.dataset || me.createMetaDataset();
|
|
},
|
|
|
|
addElementAndReset: function(index) {
|
|
var me = this;
|
|
var element = me.createMetaData(index);
|
|
me.getMeta().data.splice(index, 0, element);
|
|
me.updateElement(element, index, true);
|
|
},
|
|
|
|
buildOrUpdateElements: function() {
|
|
// Handle the number of data points changing
|
|
var meta = this.getMeta(),
|
|
md = meta.data,
|
|
numData = this.getDataset().data.length,
|
|
numMetaData = md.length;
|
|
|
|
// Make sure that we handle number of datapoints changing
|
|
if (numData < numMetaData) {
|
|
// Remove excess bars for data points that have been removed
|
|
md.splice(numData, numMetaData - numData);
|
|
} else if (numData > numMetaData) {
|
|
// Add new elements
|
|
for (var index = numMetaData; index < numData; ++index) {
|
|
this.addElementAndReset(index);
|
|
}
|
|
}
|
|
},
|
|
|
|
update: noop,
|
|
|
|
draw: function(ease) {
|
|
var easingDecimal = ease || 1;
|
|
helpers.each(this.getMeta().data, function(element) {
|
|
element.transition(easingDecimal).draw();
|
|
});
|
|
},
|
|
|
|
removeHoverStyle: function(element, elementOpts) {
|
|
var dataset = this.chart.data.datasets[element._datasetIndex],
|
|
index = element._index,
|
|
custom = element.custom || {},
|
|
valueOrDefault = helpers.getValueAtIndexOrDefault,
|
|
model = element._model;
|
|
|
|
model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : valueOrDefault(dataset.backgroundColor, index, elementOpts.backgroundColor);
|
|
model.borderColor = custom.borderColor ? custom.borderColor : valueOrDefault(dataset.borderColor, index, elementOpts.borderColor);
|
|
model.borderWidth = custom.borderWidth ? custom.borderWidth : valueOrDefault(dataset.borderWidth, index, elementOpts.borderWidth);
|
|
},
|
|
|
|
setHoverStyle: function(element) {
|
|
var dataset = this.chart.data.datasets[element._datasetIndex],
|
|
index = element._index,
|
|
custom = element.custom || {},
|
|
valueOrDefault = helpers.getValueAtIndexOrDefault,
|
|
getHoverColor = helpers.getHoverColor,
|
|
model = element._model;
|
|
|
|
model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : valueOrDefault(dataset.hoverBackgroundColor, index, getHoverColor(model.backgroundColor));
|
|
model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : valueOrDefault(dataset.hoverBorderColor, index, getHoverColor(model.borderColor));
|
|
model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : valueOrDefault(dataset.hoverBorderWidth, index, model.borderWidth);
|
|
}
|
|
|
|
});
|
|
|
|
|
|
Chart.DatasetController.extend = helpers.inherits;
|
|
};
|
|
},{}],25:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
|
|
Chart.elements = {};
|
|
|
|
Chart.Element = function(configuration) {
|
|
helpers.extend(this, configuration);
|
|
this.initialize.apply(this, arguments);
|
|
};
|
|
|
|
helpers.extend(Chart.Element.prototype, {
|
|
|
|
initialize: function() {
|
|
this.hidden = false;
|
|
},
|
|
|
|
pivot: function() {
|
|
var me = this;
|
|
if (!me._view) {
|
|
me._view = helpers.clone(me._model);
|
|
}
|
|
me._start = helpers.clone(me._view);
|
|
return me;
|
|
},
|
|
|
|
transition: function(ease) {
|
|
var me = this;
|
|
|
|
if (!me._view) {
|
|
me._view = helpers.clone(me._model);
|
|
}
|
|
|
|
// No animation -> No Transition
|
|
if (ease === 1) {
|
|
me._view = me._model;
|
|
me._start = null;
|
|
return me;
|
|
}
|
|
|
|
if (!me._start) {
|
|
me.pivot();
|
|
}
|
|
|
|
helpers.each(me._model, function(value, key) {
|
|
|
|
if (key[0] === '_') {
|
|
// Only non-underscored properties
|
|
}
|
|
|
|
// Init if doesn't exist
|
|
else if (!me._view.hasOwnProperty(key)) {
|
|
if (typeof value === 'number' && !isNaN(me._view[key])) {
|
|
me._view[key] = value * ease;
|
|
} else {
|
|
me._view[key] = value;
|
|
}
|
|
}
|
|
|
|
// No unnecessary computations
|
|
else if (value === me._view[key]) {
|
|
// It's the same! Woohoo!
|
|
}
|
|
|
|
// Color transitions if possible
|
|
else if (typeof value === 'string') {
|
|
try {
|
|
var color = helpers.color(me._model[key]).mix(helpers.color(me._start[key]), ease);
|
|
me._view[key] = color.rgbString();
|
|
} catch (err) {
|
|
me._view[key] = value;
|
|
}
|
|
}
|
|
// Number transitions
|
|
else if (typeof value === 'number') {
|
|
var startVal = me._start[key] !== undefined && isNaN(me._start[key]) === false ? me._start[key] : 0;
|
|
me._view[key] = ((me._model[key] - startVal) * ease) + startVal;
|
|
}
|
|
// Everything else
|
|
else {
|
|
me._view[key] = value;
|
|
}
|
|
}, me);
|
|
|
|
return me;
|
|
},
|
|
|
|
tooltipPosition: function() {
|
|
return {
|
|
x: this._model.x,
|
|
y: this._model.y
|
|
};
|
|
},
|
|
|
|
hasValue: function() {
|
|
return helpers.isNumber(this._model.x) && helpers.isNumber(this._model.y);
|
|
}
|
|
});
|
|
|
|
Chart.Element.extend = helpers.inherits;
|
|
|
|
};
|
|
|
|
},{}],26:[function(require,module,exports){
|
|
/*global window: false */
|
|
/*global document: false */
|
|
"use strict";
|
|
|
|
var color = require(3);
|
|
|
|
module.exports = function(Chart) {
|
|
//Global Chart helpers object for utility methods and classes
|
|
var helpers = Chart.helpers = {};
|
|
|
|
//-- Basic js utility methods
|
|
helpers.each = function(loopable, callback, self, reverse) {
|
|
// Check to see if null or undefined firstly.
|
|
var i, len;
|
|
if (helpers.isArray(loopable)) {
|
|
len = loopable.length;
|
|
if (reverse) {
|
|
for (i = len - 1; i >= 0; i--) {
|
|
callback.call(self, loopable[i], i);
|
|
}
|
|
} else {
|
|
for (i = 0; i < len; i++) {
|
|
callback.call(self, loopable[i], i);
|
|
}
|
|
}
|
|
} else if (typeof loopable === 'object') {
|
|
var keys = Object.keys(loopable);
|
|
len = keys.length;
|
|
for (i = 0; i < len; i++) {
|
|
callback.call(self, loopable[keys[i]], keys[i]);
|
|
}
|
|
}
|
|
};
|
|
helpers.clone = function(obj) {
|
|
var objClone = {};
|
|
helpers.each(obj, function(value, key) {
|
|
if (helpers.isArray(value)) {
|
|
objClone[key] = value.slice(0);
|
|
} else if (typeof value === 'object' && value !== null) {
|
|
objClone[key] = helpers.clone(value);
|
|
} else {
|
|
objClone[key] = value;
|
|
}
|
|
});
|
|
return objClone;
|
|
};
|
|
helpers.extend = function(base) {
|
|
var setFn = function(value, key) { base[key] = value; };
|
|
for (var i = 1, ilen = arguments.length; i < ilen; i++) {
|
|
helpers.each(arguments[i], setFn);
|
|
}
|
|
return base;
|
|
};
|
|
// Need a special merge function to chart configs since they are now grouped
|
|
helpers.configMerge = function(_base) {
|
|
var base = helpers.clone(_base);
|
|
helpers.each(Array.prototype.slice.call(arguments, 1), function(extension) {
|
|
helpers.each(extension, function(value, key) {
|
|
if (key === 'scales') {
|
|
// Scale config merging is complex. Add out own function here for that
|
|
base[key] = helpers.scaleMerge(base.hasOwnProperty(key) ? base[key] : {}, value);
|
|
|
|
} else if (key === 'scale') {
|
|
// Used in polar area & radar charts since there is only one scale
|
|
base[key] = helpers.configMerge(base.hasOwnProperty(key) ? base[key] : {}, Chart.scaleService.getScaleDefaults(value.type), value);
|
|
} else if (base.hasOwnProperty(key) && helpers.isArray(base[key]) && helpers.isArray(value)) {
|
|
// In this case we have an array of objects replacing another array. Rather than doing a strict replace,
|
|
// merge. This allows easy scale option merging
|
|
var baseArray = base[key];
|
|
|
|
helpers.each(value, function(valueObj, index) {
|
|
|
|
if (index < baseArray.length) {
|
|
if (typeof baseArray[index] === 'object' && baseArray[index] !== null && typeof valueObj === 'object' && valueObj !== null) {
|
|
// Two objects are coming together. Do a merge of them.
|
|
baseArray[index] = helpers.configMerge(baseArray[index], valueObj);
|
|
} else {
|
|
// Just overwrite in this case since there is nothing to merge
|
|
baseArray[index] = valueObj;
|
|
}
|
|
} else {
|
|
baseArray.push(valueObj); // nothing to merge
|
|
}
|
|
});
|
|
|
|
} else if (base.hasOwnProperty(key) && typeof base[key] === "object" && base[key] !== null && typeof value === "object") {
|
|
// If we are overwriting an object with an object, do a merge of the properties.
|
|
base[key] = helpers.configMerge(base[key], value);
|
|
|
|
} else {
|
|
// can just overwrite the value in this case
|
|
base[key] = value;
|
|
}
|
|
});
|
|
});
|
|
|
|
return base;
|
|
};
|
|
helpers.scaleMerge = function(_base, extension) {
|
|
var base = helpers.clone(_base);
|
|
|
|
helpers.each(extension, function(value, key) {
|
|
if (key === 'xAxes' || key === 'yAxes') {
|
|
// These properties are arrays of items
|
|
if (base.hasOwnProperty(key)) {
|
|
helpers.each(value, function(valueObj, index) {
|
|
var axisType = helpers.getValueOrDefault(valueObj.type, key === 'xAxes' ? 'category' : 'linear');
|
|
var axisDefaults = Chart.scaleService.getScaleDefaults(axisType);
|
|
if (index >= base[key].length || !base[key][index].type) {
|
|
base[key].push(helpers.configMerge(axisDefaults, valueObj));
|
|
} else if (valueObj.type && valueObj.type !== base[key][index].type) {
|
|
// Type changed. Bring in the new defaults before we bring in valueObj so that valueObj can override the correct scale defaults
|
|
base[key][index] = helpers.configMerge(base[key][index], axisDefaults, valueObj);
|
|
} else {
|
|
// Type is the same
|
|
base[key][index] = helpers.configMerge(base[key][index], valueObj);
|
|
}
|
|
});
|
|
} else {
|
|
base[key] = [];
|
|
helpers.each(value, function(valueObj) {
|
|
var axisType = helpers.getValueOrDefault(valueObj.type, key === 'xAxes' ? 'category' : 'linear');
|
|
base[key].push(helpers.configMerge(Chart.scaleService.getScaleDefaults(axisType), valueObj));
|
|
});
|
|
}
|
|
} else if (base.hasOwnProperty(key) && typeof base[key] === "object" && base[key] !== null && typeof value === "object") {
|
|
// If we are overwriting an object with an object, do a merge of the properties.
|
|
base[key] = helpers.configMerge(base[key], value);
|
|
|
|
} else {
|
|
// can just overwrite the value in this case
|
|
base[key] = value;
|
|
}
|
|
});
|
|
|
|
return base;
|
|
};
|
|
helpers.getValueAtIndexOrDefault = function(value, index, defaultValue) {
|
|
if (value === undefined || value === null) {
|
|
return defaultValue;
|
|
}
|
|
|
|
if (helpers.isArray(value)) {
|
|
return index < value.length ? value[index] : defaultValue;
|
|
}
|
|
|
|
return value;
|
|
};
|
|
helpers.getValueOrDefault = function(value, defaultValue) {
|
|
return value === undefined ? defaultValue : value;
|
|
};
|
|
helpers.indexOf = Array.prototype.indexOf?
|
|
function(array, item) { return array.indexOf(item); } :
|
|
function(array, item) {
|
|
for (var i = 0, ilen = array.length; i < ilen; ++i) {
|
|
if (array[i] === item) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
};
|
|
helpers.where = function(collection, filterCallback) {
|
|
if (helpers.isArray(collection) && Array.prototype.filter) {
|
|
return collection.filter(filterCallback);
|
|
} else {
|
|
var filtered = [];
|
|
|
|
helpers.each(collection, function(item) {
|
|
if (filterCallback(item)) {
|
|
filtered.push(item);
|
|
}
|
|
});
|
|
|
|
return filtered;
|
|
}
|
|
};
|
|
helpers.findIndex = Array.prototype.findIndex?
|
|
function(array, callback, scope) { return array.findIndex(callback, scope); } :
|
|
function(array, callback, scope) {
|
|
scope = scope === undefined? array : scope;
|
|
for (var i = 0, ilen = array.length; i < ilen; ++i) {
|
|
if (callback.call(scope, array[i], i, array)) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
};
|
|
helpers.findNextWhere = function(arrayToSearch, filterCallback, startIndex) {
|
|
// Default to start of the array
|
|
if (startIndex === undefined || startIndex === null) {
|
|
startIndex = -1;
|
|
}
|
|
for (var i = startIndex + 1; i < arrayToSearch.length; i++) {
|
|
var currentItem = arrayToSearch[i];
|
|
if (filterCallback(currentItem)) {
|
|
return currentItem;
|
|
}
|
|
}
|
|
};
|
|
helpers.findPreviousWhere = function(arrayToSearch, filterCallback, startIndex) {
|
|
// Default to end of the array
|
|
if (startIndex === undefined || startIndex === null) {
|
|
startIndex = arrayToSearch.length;
|
|
}
|
|
for (var i = startIndex - 1; i >= 0; i--) {
|
|
var currentItem = arrayToSearch[i];
|
|
if (filterCallback(currentItem)) {
|
|
return currentItem;
|
|
}
|
|
}
|
|
};
|
|
helpers.inherits = function(extensions) {
|
|
//Basic javascript inheritance based on the model created in Backbone.js
|
|
var parent = this;
|
|
var ChartElement = (extensions && extensions.hasOwnProperty("constructor")) ? extensions.constructor : function() {
|
|
return parent.apply(this, arguments);
|
|
};
|
|
|
|
var Surrogate = function() {
|
|
this.constructor = ChartElement;
|
|
};
|
|
Surrogate.prototype = parent.prototype;
|
|
ChartElement.prototype = new Surrogate();
|
|
|
|
ChartElement.extend = helpers.inherits;
|
|
|
|
if (extensions) {
|
|
helpers.extend(ChartElement.prototype, extensions);
|
|
}
|
|
|
|
ChartElement.__super__ = parent.prototype;
|
|
|
|
return ChartElement;
|
|
};
|
|
helpers.noop = function() {};
|
|
helpers.uid = (function() {
|
|
var id = 0;
|
|
return function() {
|
|
return id++;
|
|
};
|
|
})();
|
|
//-- Math methods
|
|
helpers.isNumber = function(n) {
|
|
return !isNaN(parseFloat(n)) && isFinite(n);
|
|
};
|
|
helpers.almostEquals = function(x, y, epsilon) {
|
|
return Math.abs(x - y) < epsilon;
|
|
};
|
|
helpers.max = function(array) {
|
|
return array.reduce(function(max, value) {
|
|
if (!isNaN(value)) {
|
|
return Math.max(max, value);
|
|
} else {
|
|
return max;
|
|
}
|
|
}, Number.NEGATIVE_INFINITY);
|
|
};
|
|
helpers.min = function(array) {
|
|
return array.reduce(function(min, value) {
|
|
if (!isNaN(value)) {
|
|
return Math.min(min, value);
|
|
} else {
|
|
return min;
|
|
}
|
|
}, Number.POSITIVE_INFINITY);
|
|
};
|
|
helpers.sign = Math.sign?
|
|
function(x) { return Math.sign(x); } :
|
|
function(x) {
|
|
x = +x; // convert to a number
|
|
if (x === 0 || isNaN(x)) {
|
|
return x;
|
|
}
|
|
return x > 0 ? 1 : -1;
|
|
};
|
|
helpers.log10 = Math.log10?
|
|
function(x) { return Math.log10(x); } :
|
|
function(x) {
|
|
return Math.log(x) / Math.LN10;
|
|
};
|
|
helpers.toRadians = function(degrees) {
|
|
return degrees * (Math.PI / 180);
|
|
};
|
|
helpers.toDegrees = function(radians) {
|
|
return radians * (180 / Math.PI);
|
|
};
|
|
// Gets the angle from vertical upright to the point about a centre.
|
|
helpers.getAngleFromPoint = function(centrePoint, anglePoint) {
|
|
var distanceFromXCenter = anglePoint.x - centrePoint.x,
|
|
distanceFromYCenter = anglePoint.y - centrePoint.y,
|
|
radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter);
|
|
|
|
var angle = Math.atan2(distanceFromYCenter, distanceFromXCenter);
|
|
|
|
if (angle < (-0.5 * Math.PI)) {
|
|
angle += 2.0 * Math.PI; // make sure the returned angle is in the range of (-PI/2, 3PI/2]
|
|
}
|
|
|
|
return {
|
|
angle: angle,
|
|
distance: radialDistanceFromCenter
|
|
};
|
|
};
|
|
helpers.aliasPixel = function(pixelWidth) {
|
|
return (pixelWidth % 2 === 0) ? 0 : 0.5;
|
|
};
|
|
helpers.splineCurve = function(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
|
|
|
|
var previous = firstPoint.skip ? middlePoint : firstPoint,
|
|
current = middlePoint,
|
|
next = afterPoint.skip ? middlePoint : afterPoint;
|
|
|
|
var d01 = Math.sqrt(Math.pow(current.x - previous.x, 2) + Math.pow(current.y - previous.y, 2));
|
|
var d12 = Math.sqrt(Math.pow(next.x - current.x, 2) + Math.pow(next.y - current.y, 2));
|
|
|
|
var s01 = d01 / (d01 + d12);
|
|
var 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;
|
|
|
|
var fa = t * s01; // scaling factor for triangle Ta
|
|
var 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)
|
|
}
|
|
};
|
|
};
|
|
helpers.EPSILON = Number.EPSILON || 1e-14;
|
|
helpers.splineCurveMonotone = function(points) {
|
|
// 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
|
|
|
|
var pointsWithTangents = (points || []).map(function(point) {
|
|
return {
|
|
model: point._model,
|
|
deltaK: 0,
|
|
mK: 0
|
|
};
|
|
});
|
|
|
|
// Calculate slopes (deltaK) and initialize tangents (mK)
|
|
var pointsLen = pointsWithTangents.length;
|
|
var i, pointBefore, pointCurrent, pointAfter;
|
|
for (i = 0; i < pointsLen; ++i) {
|
|
pointCurrent = pointsWithTangents[i];
|
|
if (pointCurrent.model.skip) continue;
|
|
pointBefore = i > 0 ? pointsWithTangents[i - 1] : null;
|
|
pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null;
|
|
if (pointAfter && !pointAfter.model.skip) {
|
|
pointCurrent.deltaK = (pointAfter.model.y - pointCurrent.model.y) / (pointAfter.model.x - pointCurrent.model.x);
|
|
}
|
|
if (!pointBefore || pointBefore.model.skip) pointCurrent.mK = pointCurrent.deltaK;
|
|
else if (!pointAfter || pointAfter.model.skip) pointCurrent.mK = pointBefore.deltaK;
|
|
else if (this.sign(pointBefore.deltaK) != this.sign(pointCurrent.deltaK)) pointCurrent.mK = 0;
|
|
else pointCurrent.mK = (pointBefore.deltaK + pointCurrent.deltaK) / 2;
|
|
}
|
|
|
|
// Adjust tangents to ensure monotonic properties
|
|
var alphaK, betaK, tauK, squaredMagnitude;
|
|
for (i = 0; i < pointsLen - 1; ++i) {
|
|
pointCurrent = pointsWithTangents[i];
|
|
pointAfter = pointsWithTangents[i + 1];
|
|
if (pointCurrent.model.skip || pointAfter.model.skip) continue;
|
|
if (helpers.almostEquals(pointCurrent.deltaK, 0, this.EPSILON))
|
|
{
|
|
pointCurrent.mK = pointAfter.mK = 0;
|
|
continue;
|
|
}
|
|
alphaK = pointCurrent.mK / pointCurrent.deltaK;
|
|
betaK = pointAfter.mK / pointCurrent.deltaK;
|
|
squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2);
|
|
if (squaredMagnitude <= 9) continue;
|
|
tauK = 3 / Math.sqrt(squaredMagnitude);
|
|
pointCurrent.mK = alphaK * tauK * pointCurrent.deltaK;
|
|
pointAfter.mK = betaK * tauK * pointCurrent.deltaK;
|
|
}
|
|
|
|
// Compute control points
|
|
var deltaX;
|
|
for (i = 0; i < pointsLen; ++i) {
|
|
pointCurrent = pointsWithTangents[i];
|
|
if (pointCurrent.model.skip) continue;
|
|
pointBefore = i > 0 ? pointsWithTangents[i - 1] : null;
|
|
pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null;
|
|
if (pointBefore && !pointBefore.model.skip) {
|
|
deltaX = (pointCurrent.model.x - pointBefore.model.x) / 3;
|
|
pointCurrent.model.controlPointPreviousX = pointCurrent.model.x - deltaX;
|
|
pointCurrent.model.controlPointPreviousY = pointCurrent.model.y - deltaX * pointCurrent.mK;
|
|
}
|
|
if (pointAfter && !pointAfter.model.skip) {
|
|
deltaX = (pointAfter.model.x - pointCurrent.model.x) / 3;
|
|
pointCurrent.model.controlPointNextX = pointCurrent.model.x + deltaX;
|
|
pointCurrent.model.controlPointNextY = pointCurrent.model.y + deltaX * pointCurrent.mK;
|
|
}
|
|
}
|
|
};
|
|
helpers.nextItem = function(collection, index, loop) {
|
|
if (loop) {
|
|
return index >= collection.length - 1 ? collection[0] : collection[index + 1];
|
|
}
|
|
|
|
return index >= collection.length - 1 ? collection[collection.length - 1] : collection[index + 1];
|
|
};
|
|
helpers.previousItem = function(collection, index, loop) {
|
|
if (loop) {
|
|
return index <= 0 ? collection[collection.length - 1] : collection[index - 1];
|
|
}
|
|
return index <= 0 ? collection[0] : collection[index - 1];
|
|
};
|
|
// Implementation of the nice number algorithm used in determining where axis labels will go
|
|
helpers.niceNum = function(range, round) {
|
|
var exponent = Math.floor(helpers.log10(range));
|
|
var fraction = range / Math.pow(10, exponent);
|
|
var niceFraction;
|
|
|
|
if (round) {
|
|
if (fraction < 1.5) {
|
|
niceFraction = 1;
|
|
} else if (fraction < 3) {
|
|
niceFraction = 2;
|
|
} else if (fraction < 7) {
|
|
niceFraction = 5;
|
|
} else {
|
|
niceFraction = 10;
|
|
}
|
|
} else {
|
|
if (fraction <= 1.0) {
|
|
niceFraction = 1;
|
|
} else if (fraction <= 2) {
|
|
niceFraction = 2;
|
|
} else if (fraction <= 5) {
|
|
niceFraction = 5;
|
|
} else {
|
|
niceFraction = 10;
|
|
}
|
|
}
|
|
|
|
return niceFraction * Math.pow(10, exponent);
|
|
};
|
|
//Easing functions adapted from Robert Penner's easing equations
|
|
//http://www.robertpenner.com/easing/
|
|
var easingEffects = helpers.easingEffects = {
|
|
linear: function(t) {
|
|
return t;
|
|
},
|
|
easeInQuad: function(t) {
|
|
return t * t;
|
|
},
|
|
easeOutQuad: function(t) {
|
|
return -1 * t * (t - 2);
|
|
},
|
|
easeInOutQuad: function(t) {
|
|
if ((t /= 1 / 2) < 1) {
|
|
return 1 / 2 * t * t;
|
|
}
|
|
return -1 / 2 * ((--t) * (t - 2) - 1);
|
|
},
|
|
easeInCubic: function(t) {
|
|
return t * t * t;
|
|
},
|
|
easeOutCubic: function(t) {
|
|
return 1 * ((t = t / 1 - 1) * t * t + 1);
|
|
},
|
|
easeInOutCubic: function(t) {
|
|
if ((t /= 1 / 2) < 1) {
|
|
return 1 / 2 * t * t * t;
|
|
}
|
|
return 1 / 2 * ((t -= 2) * t * t + 2);
|
|
},
|
|
easeInQuart: function(t) {
|
|
return t * t * t * t;
|
|
},
|
|
easeOutQuart: function(t) {
|
|
return -1 * ((t = t / 1 - 1) * t * t * t - 1);
|
|
},
|
|
easeInOutQuart: function(t) {
|
|
if ((t /= 1 / 2) < 1) {
|
|
return 1 / 2 * t * t * t * t;
|
|
}
|
|
return -1 / 2 * ((t -= 2) * t * t * t - 2);
|
|
},
|
|
easeInQuint: function(t) {
|
|
return 1 * (t /= 1) * t * t * t * t;
|
|
},
|
|
easeOutQuint: function(t) {
|
|
return 1 * ((t = t / 1 - 1) * t * t * t * t + 1);
|
|
},
|
|
easeInOutQuint: function(t) {
|
|
if ((t /= 1 / 2) < 1) {
|
|
return 1 / 2 * t * t * t * t * t;
|
|
}
|
|
return 1 / 2 * ((t -= 2) * t * t * t * t + 2);
|
|
},
|
|
easeInSine: function(t) {
|
|
return -1 * Math.cos(t / 1 * (Math.PI / 2)) + 1;
|
|
},
|
|
easeOutSine: function(t) {
|
|
return 1 * Math.sin(t / 1 * (Math.PI / 2));
|
|
},
|
|
easeInOutSine: function(t) {
|
|
return -1 / 2 * (Math.cos(Math.PI * t / 1) - 1);
|
|
},
|
|
easeInExpo: function(t) {
|
|
return (t === 0) ? 1 : 1 * Math.pow(2, 10 * (t / 1 - 1));
|
|
},
|
|
easeOutExpo: function(t) {
|
|
return (t === 1) ? 1 : 1 * (-Math.pow(2, -10 * t / 1) + 1);
|
|
},
|
|
easeInOutExpo: function(t) {
|
|
if (t === 0) {
|
|
return 0;
|
|
}
|
|
if (t === 1) {
|
|
return 1;
|
|
}
|
|
if ((t /= 1 / 2) < 1) {
|
|
return 1 / 2 * Math.pow(2, 10 * (t - 1));
|
|
}
|
|
return 1 / 2 * (-Math.pow(2, -10 * --t) + 2);
|
|
},
|
|
easeInCirc: function(t) {
|
|
if (t >= 1) {
|
|
return t;
|
|
}
|
|
return -1 * (Math.sqrt(1 - (t /= 1) * t) - 1);
|
|
},
|
|
easeOutCirc: function(t) {
|
|
return 1 * Math.sqrt(1 - (t = t / 1 - 1) * t);
|
|
},
|
|
easeInOutCirc: function(t) {
|
|
if ((t /= 1 / 2) < 1) {
|
|
return -1 / 2 * (Math.sqrt(1 - t * t) - 1);
|
|
}
|
|
return 1 / 2 * (Math.sqrt(1 - (t -= 2) * t) + 1);
|
|
},
|
|
easeInElastic: function(t) {
|
|
var s = 1.70158;
|
|
var p = 0;
|
|
var a = 1;
|
|
if (t === 0) {
|
|
return 0;
|
|
}
|
|
if ((t /= 1) === 1) {
|
|
return 1;
|
|
}
|
|
if (!p) {
|
|
p = 1 * 0.3;
|
|
}
|
|
if (a < Math.abs(1)) {
|
|
a = 1;
|
|
s = p / 4;
|
|
} else {
|
|
s = p / (2 * Math.PI) * Math.asin(1 / a);
|
|
}
|
|
return -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * 1 - s) * (2 * Math.PI) / p));
|
|
},
|
|
easeOutElastic: function(t) {
|
|
var s = 1.70158;
|
|
var p = 0;
|
|
var a = 1;
|
|
if (t === 0) {
|
|
return 0;
|
|
}
|
|
if ((t /= 1) === 1) {
|
|
return 1;
|
|
}
|
|
if (!p) {
|
|
p = 1 * 0.3;
|
|
}
|
|
if (a < Math.abs(1)) {
|
|
a = 1;
|
|
s = p / 4;
|
|
} else {
|
|
s = p / (2 * Math.PI) * Math.asin(1 / a);
|
|
}
|
|
return a * Math.pow(2, -10 * t) * Math.sin((t * 1 - s) * (2 * Math.PI) / p) + 1;
|
|
},
|
|
easeInOutElastic: function(t) {
|
|
var s = 1.70158;
|
|
var p = 0;
|
|
var a = 1;
|
|
if (t === 0) {
|
|
return 0;
|
|
}
|
|
if ((t /= 1 / 2) === 2) {
|
|
return 1;
|
|
}
|
|
if (!p) {
|
|
p = 1 * (0.3 * 1.5);
|
|
}
|
|
if (a < Math.abs(1)) {
|
|
a = 1;
|
|
s = p / 4;
|
|
} else {
|
|
s = p / (2 * Math.PI) * Math.asin(1 / a);
|
|
}
|
|
if (t < 1) {
|
|
return -0.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * 1 - s) * (2 * Math.PI) / p));
|
|
}
|
|
return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t * 1 - s) * (2 * Math.PI) / p) * 0.5 + 1;
|
|
},
|
|
easeInBack: function(t) {
|
|
var s = 1.70158;
|
|
return 1 * (t /= 1) * t * ((s + 1) * t - s);
|
|
},
|
|
easeOutBack: function(t) {
|
|
var s = 1.70158;
|
|
return 1 * ((t = t / 1 - 1) * t * ((s + 1) * t + s) + 1);
|
|
},
|
|
easeInOutBack: function(t) {
|
|
var s = 1.70158;
|
|
if ((t /= 1 / 2) < 1) {
|
|
return 1 / 2 * (t * t * (((s *= (1.525)) + 1) * t - s));
|
|
}
|
|
return 1 / 2 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2);
|
|
},
|
|
easeInBounce: function(t) {
|
|
return 1 - easingEffects.easeOutBounce(1 - t);
|
|
},
|
|
easeOutBounce: function(t) {
|
|
if ((t /= 1) < (1 / 2.75)) {
|
|
return 1 * (7.5625 * t * t);
|
|
} else if (t < (2 / 2.75)) {
|
|
return 1 * (7.5625 * (t -= (1.5 / 2.75)) * t + 0.75);
|
|
} else if (t < (2.5 / 2.75)) {
|
|
return 1 * (7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375);
|
|
} else {
|
|
return 1 * (7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375);
|
|
}
|
|
},
|
|
easeInOutBounce: function(t) {
|
|
if (t < 1 / 2) {
|
|
return easingEffects.easeInBounce(t * 2) * 0.5;
|
|
}
|
|
return easingEffects.easeOutBounce(t * 2 - 1) * 0.5 + 1 * 0.5;
|
|
}
|
|
};
|
|
//Request animation polyfill - http://www.paulirish.com/2011/requestanimationframe-for-smart-animating/
|
|
helpers.requestAnimFrame = (function() {
|
|
return window.requestAnimationFrame ||
|
|
window.webkitRequestAnimationFrame ||
|
|
window.mozRequestAnimationFrame ||
|
|
window.oRequestAnimationFrame ||
|
|
window.msRequestAnimationFrame ||
|
|
function(callback) {
|
|
return window.setTimeout(callback, 1000 / 60);
|
|
};
|
|
})();
|
|
helpers.cancelAnimFrame = (function() {
|
|
return window.cancelAnimationFrame ||
|
|
window.webkitCancelAnimationFrame ||
|
|
window.mozCancelAnimationFrame ||
|
|
window.oCancelAnimationFrame ||
|
|
window.msCancelAnimationFrame ||
|
|
function(callback) {
|
|
return window.clearTimeout(callback, 1000 / 60);
|
|
};
|
|
})();
|
|
//-- DOM methods
|
|
helpers.getRelativePosition = function(evt, chart) {
|
|
var mouseX, mouseY;
|
|
var e = evt.originalEvent || evt,
|
|
canvas = evt.currentTarget || evt.srcElement,
|
|
boundingRect = canvas.getBoundingClientRect();
|
|
|
|
var touches = e.touches;
|
|
if (touches && touches.length > 0) {
|
|
mouseX = touches[0].clientX;
|
|
mouseY = touches[0].clientY;
|
|
|
|
} else {
|
|
mouseX = e.clientX;
|
|
mouseY = e.clientY;
|
|
}
|
|
|
|
// Scale mouse coordinates into canvas coordinates
|
|
// by following the pattern laid out by 'jerryj' in the comments of
|
|
// http://www.html5canvastutorials.com/advanced/html5-canvas-mouse-coordinates/
|
|
var paddingLeft = parseFloat(helpers.getStyle(canvas, 'padding-left'));
|
|
var paddingTop = parseFloat(helpers.getStyle(canvas, 'padding-top'));
|
|
var paddingRight = parseFloat(helpers.getStyle(canvas, 'padding-right'));
|
|
var paddingBottom = parseFloat(helpers.getStyle(canvas, 'padding-bottom'));
|
|
var width = boundingRect.right - boundingRect.left - paddingLeft - paddingRight;
|
|
var height = boundingRect.bottom - boundingRect.top - paddingTop - paddingBottom;
|
|
|
|
// We divide by the current device pixel ratio, because the canvas is scaled up by that amount in each direction. However
|
|
// the backend model is in unscaled coordinates. Since we are going to deal with our model coordinates, we go back here
|
|
mouseX = Math.round((mouseX - boundingRect.left - paddingLeft) / (width) * canvas.width / chart.currentDevicePixelRatio);
|
|
mouseY = Math.round((mouseY - boundingRect.top - paddingTop) / (height) * canvas.height / chart.currentDevicePixelRatio);
|
|
|
|
return {
|
|
x: mouseX,
|
|
y: mouseY
|
|
};
|
|
|
|
};
|
|
helpers.addEvent = function(node, eventType, method) {
|
|
if (node.addEventListener) {
|
|
node.addEventListener(eventType, method);
|
|
} else if (node.attachEvent) {
|
|
node.attachEvent("on" + eventType, method);
|
|
} else {
|
|
node["on" + eventType] = method;
|
|
}
|
|
};
|
|
helpers.removeEvent = function(node, eventType, handler) {
|
|
if (node.removeEventListener) {
|
|
node.removeEventListener(eventType, handler, false);
|
|
} else if (node.detachEvent) {
|
|
node.detachEvent("on" + eventType, handler);
|
|
} else {
|
|
node["on" + eventType] = helpers.noop;
|
|
}
|
|
};
|
|
helpers.bindEvents = function(chartInstance, arrayOfEvents, handler) {
|
|
// Create the events object if it's not already present
|
|
var events = chartInstance.events = chartInstance.events || {};
|
|
|
|
helpers.each(arrayOfEvents, function(eventName) {
|
|
events[eventName] = function() {
|
|
handler.apply(chartInstance, arguments);
|
|
};
|
|
helpers.addEvent(chartInstance.chart.canvas, eventName, events[eventName]);
|
|
});
|
|
};
|
|
helpers.unbindEvents = function(chartInstance, arrayOfEvents) {
|
|
var canvas = chartInstance.chart.canvas;
|
|
helpers.each(arrayOfEvents, function(handler, eventName) {
|
|
helpers.removeEvent(canvas, eventName, handler);
|
|
});
|
|
};
|
|
|
|
// Private helper function to convert max-width/max-height values that may be percentages into a number
|
|
function parseMaxStyle(styleValue, node, parentProperty) {
|
|
var 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;
|
|
}
|
|
|
|
/**
|
|
* Returns if the given value contains an effective constraint.
|
|
* @private
|
|
*/
|
|
function isConstrainedValue(value) {
|
|
return value !== undefined && value !== null && value !== 'none';
|
|
}
|
|
|
|
// Private helper to get a constraint dimension
|
|
// @param domNode : the node to check the constraint on
|
|
// @param maxStyle : the style that defines the maximum for the direction we are using (maxWidth / maxHeight)
|
|
// @param percentageProperty : property of parent to use when calculating width as a percentage
|
|
// @see http://www.nathanaeljones.com/blog/2013/reading-max-width-cross-browser
|
|
function getConstraintDimension(domNode, maxStyle, percentageProperty) {
|
|
var view = document.defaultView;
|
|
var parentNode = domNode.parentNode;
|
|
var constrainedNode = view.getComputedStyle(domNode)[maxStyle];
|
|
var constrainedContainer = view.getComputedStyle(parentNode)[maxStyle];
|
|
var hasCNode = isConstrainedValue(constrainedNode);
|
|
var hasCContainer = isConstrainedValue(constrainedContainer);
|
|
var infinity = Number.POSITIVE_INFINITY;
|
|
|
|
if (hasCNode || hasCContainer) {
|
|
return Math.min(
|
|
hasCNode? parseMaxStyle(constrainedNode, domNode, percentageProperty) : infinity,
|
|
hasCContainer? parseMaxStyle(constrainedContainer, parentNode, percentageProperty) : infinity);
|
|
}
|
|
|
|
return 'none';
|
|
}
|
|
// returns Number or undefined if no constraint
|
|
helpers.getConstraintWidth = function(domNode) {
|
|
return getConstraintDimension(domNode, 'max-width', 'clientWidth');
|
|
};
|
|
// returns Number or undefined if no constraint
|
|
helpers.getConstraintHeight = function(domNode) {
|
|
return getConstraintDimension(domNode, 'max-height', 'clientHeight');
|
|
};
|
|
helpers.getMaximumWidth = function(domNode) {
|
|
var container = domNode.parentNode;
|
|
var padding = parseInt(helpers.getStyle(container, 'padding-left')) + parseInt(helpers.getStyle(container, 'padding-right'));
|
|
var w = container.clientWidth - padding;
|
|
var cw = helpers.getConstraintWidth(domNode);
|
|
return isNaN(cw)? w : Math.min(w, cw);
|
|
};
|
|
helpers.getMaximumHeight = function(domNode) {
|
|
var container = domNode.parentNode;
|
|
var padding = parseInt(helpers.getStyle(container, 'padding-top')) + parseInt(helpers.getStyle(container, 'padding-bottom'));
|
|
var h = container.clientHeight - padding;
|
|
var ch = helpers.getConstraintHeight(domNode);
|
|
return isNaN(ch)? h : Math.min(h, ch);
|
|
};
|
|
helpers.getStyle = function(el, property) {
|
|
return el.currentStyle ?
|
|
el.currentStyle[property] :
|
|
document.defaultView.getComputedStyle(el, null).getPropertyValue(property);
|
|
};
|
|
helpers.retinaScale = function(chart) {
|
|
var ctx = chart.ctx;
|
|
var canvas = chart.canvas;
|
|
var width = canvas.width;
|
|
var height = canvas.height;
|
|
var pixelRatio = chart.currentDevicePixelRatio = window.devicePixelRatio || 1;
|
|
|
|
if (pixelRatio !== 1) {
|
|
canvas.height = height * pixelRatio;
|
|
canvas.width = width * pixelRatio;
|
|
ctx.scale(pixelRatio, pixelRatio);
|
|
|
|
// Store the device pixel ratio so that we can go backwards in `destroy`.
|
|
// The devicePixelRatio changes with zoom, so there are no guarantees that it is the same
|
|
// when destroy is called
|
|
chart.originalDevicePixelRatio = chart.originalDevicePixelRatio || pixelRatio;
|
|
}
|
|
|
|
canvas.style.width = width + 'px';
|
|
canvas.style.height = height + 'px';
|
|
};
|
|
//-- Canvas methods
|
|
helpers.clear = function(chart) {
|
|
chart.ctx.clearRect(0, 0, chart.width, chart.height);
|
|
};
|
|
helpers.fontString = function(pixelSize, fontStyle, fontFamily) {
|
|
return fontStyle + " " + pixelSize + "px " + fontFamily;
|
|
};
|
|
helpers.longestText = function(ctx, font, arrayOfThings, cache) {
|
|
cache = cache || {};
|
|
var data = cache.data = cache.data || {};
|
|
var gc = cache.garbageCollect = cache.garbageCollect || [];
|
|
|
|
if (cache.font !== font) {
|
|
data = cache.data = {};
|
|
gc = cache.garbageCollect = [];
|
|
cache.font = font;
|
|
}
|
|
|
|
ctx.font = font;
|
|
var longest = 0;
|
|
helpers.each(arrayOfThings, function(thing) {
|
|
// Undefined strings and arrays should not be measured
|
|
if (thing !== undefined && thing !== null && helpers.isArray(thing) !== true) {
|
|
longest = helpers.measureText(ctx, data, gc, longest, thing);
|
|
} else if (helpers.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?
|
|
helpers.each(thing, function(nestedThing) {
|
|
// Undefined strings and arrays should not be measured
|
|
if (nestedThing !== undefined && nestedThing !== null && !helpers.isArray(nestedThing)) {
|
|
longest = helpers.measureText(ctx, data, gc, longest, nestedThing);
|
|
}
|
|
});
|
|
}
|
|
});
|
|
|
|
var gcLen = gc.length / 2;
|
|
if (gcLen > arrayOfThings.length) {
|
|
for (var i = 0; i < gcLen; i++) {
|
|
delete data[gc[i]];
|
|
}
|
|
gc.splice(0, gcLen);
|
|
}
|
|
return longest;
|
|
};
|
|
helpers.measureText = function (ctx, data, gc, longest, string) {
|
|
var textWidth = data[string];
|
|
if (!textWidth) {
|
|
textWidth = data[string] = ctx.measureText(string).width;
|
|
gc.push(string);
|
|
}
|
|
if (textWidth > longest) {
|
|
longest = textWidth;
|
|
}
|
|
return longest;
|
|
};
|
|
helpers.numberOfLabelLines = function(arrayOfThings) {
|
|
var numberOfLines = 1;
|
|
helpers.each(arrayOfThings, function(thing) {
|
|
if (helpers.isArray(thing)) {
|
|
if (thing.length > numberOfLines) {
|
|
numberOfLines = thing.length;
|
|
}
|
|
}
|
|
});
|
|
return numberOfLines;
|
|
};
|
|
helpers.drawRoundedRectangle = function(ctx, x, y, width, height, radius) {
|
|
ctx.beginPath();
|
|
ctx.moveTo(x + radius, y);
|
|
ctx.lineTo(x + width - radius, y);
|
|
ctx.quadraticCurveTo(x + width, y, x + width, y + radius);
|
|
ctx.lineTo(x + width, y + height - radius);
|
|
ctx.quadraticCurveTo(x + width, y + height, x + width - radius, y + height);
|
|
ctx.lineTo(x + radius, y + height);
|
|
ctx.quadraticCurveTo(x, y + height, x, y + height - radius);
|
|
ctx.lineTo(x, y + radius);
|
|
ctx.quadraticCurveTo(x, y, x + radius, y);
|
|
ctx.closePath();
|
|
};
|
|
helpers.color = function(c) {
|
|
if (!color) {
|
|
console.log('Color.js not found!');
|
|
return c;
|
|
}
|
|
|
|
/* global CanvasGradient */
|
|
if (c instanceof CanvasGradient) {
|
|
return color(Chart.defaults.global.defaultColor);
|
|
}
|
|
|
|
return color(c);
|
|
};
|
|
helpers.addResizeListener = function(node, callback) {
|
|
// Hide an iframe before the node
|
|
var hiddenIframe = document.createElement('iframe');
|
|
var hiddenIframeClass = 'chartjs-hidden-iframe';
|
|
|
|
if (hiddenIframe.classlist) {
|
|
// can use classlist
|
|
hiddenIframe.classlist.add(hiddenIframeClass);
|
|
} else {
|
|
hiddenIframe.setAttribute('class', hiddenIframeClass);
|
|
}
|
|
|
|
// Set the style
|
|
hiddenIframe.tabIndex = -1;
|
|
var style = hiddenIframe.style;
|
|
style.width = '100%';
|
|
style.display = 'block';
|
|
style.border = 0;
|
|
style.height = 0;
|
|
style.margin = 0;
|
|
style.position = 'absolute';
|
|
style.left = 0;
|
|
style.right = 0;
|
|
style.top = 0;
|
|
style.bottom = 0;
|
|
|
|
// Insert the iframe so that contentWindow is available
|
|
node.insertBefore(hiddenIframe, node.firstChild);
|
|
|
|
(hiddenIframe.contentWindow || hiddenIframe).onresize = function() {
|
|
if (callback) {
|
|
callback();
|
|
}
|
|
};
|
|
};
|
|
helpers.removeResizeListener = function(node) {
|
|
var hiddenIframe = node.querySelector('.chartjs-hidden-iframe');
|
|
|
|
// Remove the resize detect iframe
|
|
if (hiddenIframe) {
|
|
hiddenIframe.parentNode.removeChild(hiddenIframe);
|
|
}
|
|
};
|
|
helpers.isArray = Array.isArray?
|
|
function(obj) { return Array.isArray(obj); } :
|
|
function(obj) {
|
|
return Object.prototype.toString.call(obj) === '[object Array]';
|
|
};
|
|
//! @see http://stackoverflow.com/a/14853974
|
|
helpers.arrayEquals = function(a0, a1) {
|
|
var 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 instanceof Array && v1 instanceof Array) {
|
|
if (!helpers.arrayEquals(v0, v1)) {
|
|
return false;
|
|
}
|
|
} else if (v0 != v1) {
|
|
// NOTE: two different object instances will never be equal: {x:20} != {x:20}
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
};
|
|
helpers.callCallback = function(fn, args, _tArg) {
|
|
if (fn && typeof fn.call === 'function') {
|
|
fn.apply(_tArg, args);
|
|
}
|
|
};
|
|
helpers.getHoverColor = function(color) {
|
|
/* global CanvasPattern */
|
|
return (color instanceof CanvasPattern) ?
|
|
color :
|
|
helpers.color(color).saturate(0.5).darken(0.1).rgbString();
|
|
};
|
|
};
|
|
|
|
},{"3":3}],27:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function() {
|
|
|
|
//Occupy the global variable of Chart, and create a simple base class
|
|
var Chart = function(context, config) {
|
|
var me = this;
|
|
var helpers = Chart.helpers;
|
|
me.config = config || {
|
|
data: {
|
|
datasets: []
|
|
}
|
|
};
|
|
|
|
// Support a jQuery'd canvas element
|
|
if (context.length && context[0].getContext) {
|
|
context = context[0];
|
|
}
|
|
|
|
// Support a canvas domnode
|
|
if (context.getContext) {
|
|
context = context.getContext("2d");
|
|
}
|
|
|
|
me.ctx = context;
|
|
me.canvas = context.canvas;
|
|
|
|
context.canvas.style.display = context.canvas.style.display || 'block';
|
|
|
|
// Figure out what the size of the chart will be.
|
|
// If the canvas has a specified width and height, we use those else
|
|
// we look to see if the canvas node has a CSS width and height.
|
|
// If there is still no height, fill the parent container
|
|
me.width = context.canvas.width || parseInt(helpers.getStyle(context.canvas, 'width'), 10) || helpers.getMaximumWidth(context.canvas);
|
|
me.height = context.canvas.height || parseInt(helpers.getStyle(context.canvas, 'height'), 10) || helpers.getMaximumHeight(context.canvas);
|
|
|
|
me.aspectRatio = me.width / me.height;
|
|
|
|
if (isNaN(me.aspectRatio) || isFinite(me.aspectRatio) === false) {
|
|
// If the canvas has no size, try and figure out what the aspect ratio will be.
|
|
// Some charts prefer square canvases (pie, radar, etc). If that is specified, use that
|
|
// else use the canvas default ratio of 2
|
|
me.aspectRatio = config.aspectRatio !== undefined ? config.aspectRatio : 2;
|
|
}
|
|
|
|
// Store the original style of the element so we can set it back
|
|
me.originalCanvasStyleWidth = context.canvas.style.width;
|
|
me.originalCanvasStyleHeight = context.canvas.style.height;
|
|
|
|
// High pixel density displays - multiply the size of the canvas height/width by the device pixel ratio, then scale.
|
|
helpers.retinaScale(me);
|
|
me.controller = new Chart.Controller(me);
|
|
|
|
// Always bind this so that if the responsive state changes we still work
|
|
helpers.addResizeListener(context.canvas.parentNode, function() {
|
|
if (me.controller && me.controller.config.options.responsive) {
|
|
me.controller.resize();
|
|
}
|
|
});
|
|
|
|
return me.controller ? me.controller : me;
|
|
|
|
};
|
|
|
|
//Globally expose the defaults to allow for user updating/changing
|
|
Chart.defaults = {
|
|
global: {
|
|
responsive: true,
|
|
responsiveAnimationDuration: 0,
|
|
maintainAspectRatio: true,
|
|
events: ["mousemove", "mouseout", "click", "touchstart", "touchmove"],
|
|
hover: {
|
|
onHover: null,
|
|
mode: 'single',
|
|
animationDuration: 400
|
|
},
|
|
onClick: null,
|
|
defaultColor: 'rgba(0,0,0,0.1)',
|
|
defaultFontColor: '#666',
|
|
defaultFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif",
|
|
defaultFontSize: 12,
|
|
defaultFontStyle: 'normal',
|
|
showLines: true,
|
|
|
|
// Element defaults defined in element extensions
|
|
elements: {},
|
|
|
|
// Legend callback string
|
|
legendCallback: function(chart) {
|
|
var text = [];
|
|
text.push('<ul class="' + chart.id + '-legend">');
|
|
for (var i = 0; i < chart.data.datasets.length; i++) {
|
|
text.push('<li><span style="background-color:' + chart.data.datasets[i].backgroundColor + '"></span>');
|
|
if (chart.data.datasets[i].label) {
|
|
text.push(chart.data.datasets[i].label);
|
|
}
|
|
text.push('</li>');
|
|
}
|
|
text.push('</ul>');
|
|
|
|
return text.join("");
|
|
}
|
|
}
|
|
};
|
|
|
|
Chart.Chart = Chart;
|
|
|
|
return Chart;
|
|
|
|
};
|
|
|
|
},{}],28:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
|
|
// The layout service is very self explanatory. It's responsible for the layout within a chart.
|
|
// Scales, Legends and Plugins all rely on the layout service and can easily register to be placed anywhere they need
|
|
// It is this service's responsibility of carrying out that layout.
|
|
Chart.layoutService = {
|
|
defaults: {},
|
|
|
|
// Register a box to a chartInstance. A box is simply a reference to an object that requires layout. eg. Scales, Legend, Plugins.
|
|
addBox: function(chartInstance, box) {
|
|
if (!chartInstance.boxes) {
|
|
chartInstance.boxes = [];
|
|
}
|
|
chartInstance.boxes.push(box);
|
|
},
|
|
|
|
removeBox: function(chartInstance, box) {
|
|
if (!chartInstance.boxes) {
|
|
return;
|
|
}
|
|
chartInstance.boxes.splice(chartInstance.boxes.indexOf(box), 1);
|
|
},
|
|
|
|
// The most important function
|
|
update: function(chartInstance, width, height) {
|
|
|
|
if (!chartInstance) {
|
|
return;
|
|
}
|
|
|
|
var xPadding = 0;
|
|
var yPadding = 0;
|
|
|
|
var leftBoxes = helpers.where(chartInstance.boxes, function(box) {
|
|
return box.options.position === "left";
|
|
});
|
|
var rightBoxes = helpers.where(chartInstance.boxes, function(box) {
|
|
return box.options.position === "right";
|
|
});
|
|
var topBoxes = helpers.where(chartInstance.boxes, function(box) {
|
|
return box.options.position === "top";
|
|
});
|
|
var bottomBoxes = helpers.where(chartInstance.boxes, function(box) {
|
|
return box.options.position === "bottom";
|
|
});
|
|
|
|
// Boxes that overlay the chartarea such as the radialLinear scale
|
|
var chartAreaBoxes = helpers.where(chartInstance.boxes, function(box) {
|
|
return box.options.position === "chartArea";
|
|
});
|
|
|
|
// Ensure that full width boxes are at the very top / bottom
|
|
topBoxes.sort(function(a, b) {
|
|
return (b.options.fullWidth ? 1 : 0) - (a.options.fullWidth ? 1 : 0);
|
|
});
|
|
bottomBoxes.sort(function(a, b) {
|
|
return (a.options.fullWidth ? 1 : 0) - (b.options.fullWidth ? 1 : 0);
|
|
});
|
|
|
|
// Essentially we now have any number of boxes on each of the 4 sides.
|
|
// Our canvas looks like the following.
|
|
// The areas L1 and L2 are the left axes. R1 is the right axis, T1 is the top axis and
|
|
// B1 is the bottom axis
|
|
// There are also 4 quadrant-like locations (left to right instead of clockwise) reserved for chart overlays
|
|
// These locations are single-box locations only, when trying to register a chartArea location that is already taken,
|
|
// an error will be thrown.
|
|
//
|
|
// |----------------------------------------------------|
|
|
// | T1 (Full Width) |
|
|
// |----------------------------------------------------|
|
|
// | | | T2 | |
|
|
// | |----|-------------------------------------|----|
|
|
// | | | C1 | | C2 | |
|
|
// | | |----| |----| |
|
|
// | | | | |
|
|
// | L1 | L2 | ChartArea (C0) | R1 |
|
|
// | | | | |
|
|
// | | |----| |----| |
|
|
// | | | C3 | | C4 | |
|
|
// | |----|-------------------------------------|----|
|
|
// | | | B1 | |
|
|
// |----------------------------------------------------|
|
|
// | B2 (Full Width) |
|
|
// |----------------------------------------------------|
|
|
//
|
|
// What we do to find the best sizing, we do the following
|
|
// 1. Determine the minimum size of the chart area.
|
|
// 2. Split the remaining width equally between each vertical axis
|
|
// 3. Split the remaining height equally between each horizontal axis
|
|
// 4. Give each layout the maximum size it can be. The layout will return it's minimum size
|
|
// 5. Adjust the sizes of each axis based on it's minimum reported size.
|
|
// 6. Refit each axis
|
|
// 7. Position each axis in the final location
|
|
// 8. Tell the chart the final location of the chart area
|
|
// 9. Tell any axes that overlay the chart area the positions of the chart area
|
|
|
|
// Step 1
|
|
var chartWidth = width - (2 * xPadding);
|
|
var chartHeight = height - (2 * yPadding);
|
|
var chartAreaWidth = chartWidth / 2; // min 50%
|
|
var chartAreaHeight = chartHeight / 2; // min 50%
|
|
|
|
// Step 2
|
|
var verticalBoxWidth = (width - chartAreaWidth) / (leftBoxes.length + rightBoxes.length);
|
|
|
|
// Step 3
|
|
var horizontalBoxHeight = (height - chartAreaHeight) / (topBoxes.length + bottomBoxes.length);
|
|
|
|
// Step 4
|
|
var maxChartAreaWidth = chartWidth;
|
|
var maxChartAreaHeight = chartHeight;
|
|
var minBoxSizes = [];
|
|
|
|
helpers.each(leftBoxes.concat(rightBoxes, topBoxes, bottomBoxes), getMinimumBoxSize);
|
|
|
|
function getMinimumBoxSize(box) {
|
|
var minSize;
|
|
var isHorizontal = box.isHorizontal();
|
|
|
|
if (isHorizontal) {
|
|
minSize = box.update(box.options.fullWidth ? chartWidth : maxChartAreaWidth, horizontalBoxHeight);
|
|
maxChartAreaHeight -= minSize.height;
|
|
} else {
|
|
minSize = box.update(verticalBoxWidth, chartAreaHeight);
|
|
maxChartAreaWidth -= minSize.width;
|
|
}
|
|
|
|
minBoxSizes.push({
|
|
horizontal: isHorizontal,
|
|
minSize: minSize,
|
|
box: box
|
|
});
|
|
}
|
|
|
|
// At this point, maxChartAreaHeight and maxChartAreaWidth are the size the chart area could
|
|
// be if the axes are drawn at their minimum sizes.
|
|
|
|
// Steps 5 & 6
|
|
var totalLeftBoxesWidth = xPadding;
|
|
var totalRightBoxesWidth = xPadding;
|
|
var totalTopBoxesHeight = yPadding;
|
|
var totalBottomBoxesHeight = yPadding;
|
|
|
|
// Update, and calculate the left and right margins for the horizontal boxes
|
|
helpers.each(leftBoxes.concat(rightBoxes), fitBox);
|
|
|
|
helpers.each(leftBoxes, function(box) {
|
|
totalLeftBoxesWidth += box.width;
|
|
});
|
|
|
|
helpers.each(rightBoxes, function(box) {
|
|
totalRightBoxesWidth += box.width;
|
|
});
|
|
|
|
// Set the Left and Right margins for the horizontal boxes
|
|
helpers.each(topBoxes.concat(bottomBoxes), fitBox);
|
|
|
|
// Function to fit a box
|
|
function fitBox(box) {
|
|
var minBoxSize = helpers.findNextWhere(minBoxSizes, function(minBoxSize) {
|
|
return minBoxSize.box === box;
|
|
});
|
|
|
|
if (minBoxSize) {
|
|
if (box.isHorizontal()) {
|
|
var scaleMargin = {
|
|
left: totalLeftBoxesWidth,
|
|
right: totalRightBoxesWidth,
|
|
top: 0,
|
|
bottom: 0
|
|
};
|
|
|
|
// Don't use min size here because of label rotation. When the labels are rotated, their rotation highly depends
|
|
// on the margin. Sometimes they need to increase in size slightly
|
|
box.update(box.options.fullWidth ? chartWidth : maxChartAreaWidth, chartHeight / 2, scaleMargin);
|
|
} else {
|
|
box.update(minBoxSize.minSize.width, maxChartAreaHeight);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Figure out how much margin is on the top and bottom of the vertical boxes
|
|
helpers.each(topBoxes, function(box) {
|
|
totalTopBoxesHeight += box.height;
|
|
});
|
|
|
|
helpers.each(bottomBoxes, function(box) {
|
|
totalBottomBoxesHeight += box.height;
|
|
});
|
|
|
|
// Let the left layout know the final margin
|
|
helpers.each(leftBoxes.concat(rightBoxes), finalFitVerticalBox);
|
|
|
|
function finalFitVerticalBox(box) {
|
|
var minBoxSize = helpers.findNextWhere(minBoxSizes, function(minBoxSize) {
|
|
return minBoxSize.box === box;
|
|
});
|
|
|
|
var scaleMargin = {
|
|
left: 0,
|
|
right: 0,
|
|
top: totalTopBoxesHeight,
|
|
bottom: totalBottomBoxesHeight
|
|
};
|
|
|
|
if (minBoxSize) {
|
|
box.update(minBoxSize.minSize.width, maxChartAreaHeight, scaleMargin);
|
|
}
|
|
}
|
|
|
|
// Recalculate because the size of each layout might have changed slightly due to the margins (label rotation for instance)
|
|
totalLeftBoxesWidth = xPadding;
|
|
totalRightBoxesWidth = xPadding;
|
|
totalTopBoxesHeight = yPadding;
|
|
totalBottomBoxesHeight = yPadding;
|
|
|
|
helpers.each(leftBoxes, function(box) {
|
|
totalLeftBoxesWidth += box.width;
|
|
});
|
|
|
|
helpers.each(rightBoxes, function(box) {
|
|
totalRightBoxesWidth += box.width;
|
|
});
|
|
|
|
helpers.each(topBoxes, function(box) {
|
|
totalTopBoxesHeight += box.height;
|
|
});
|
|
helpers.each(bottomBoxes, function(box) {
|
|
totalBottomBoxesHeight += box.height;
|
|
});
|
|
|
|
// Figure out if our chart area changed. This would occur if the dataset layout label rotation
|
|
// changed due to the application of the margins in step 6. Since we can only get bigger, this is safe to do
|
|
// without calling `fit` again
|
|
var newMaxChartAreaHeight = height - totalTopBoxesHeight - totalBottomBoxesHeight;
|
|
var newMaxChartAreaWidth = width - totalLeftBoxesWidth - totalRightBoxesWidth;
|
|
|
|
if (newMaxChartAreaWidth !== maxChartAreaWidth || newMaxChartAreaHeight !== maxChartAreaHeight) {
|
|
helpers.each(leftBoxes, function(box) {
|
|
box.height = newMaxChartAreaHeight;
|
|
});
|
|
|
|
helpers.each(rightBoxes, function(box) {
|
|
box.height = newMaxChartAreaHeight;
|
|
});
|
|
|
|
helpers.each(topBoxes, function(box) {
|
|
if (!box.options.fullWidth) {
|
|
box.width = newMaxChartAreaWidth;
|
|
}
|
|
});
|
|
|
|
helpers.each(bottomBoxes, function(box) {
|
|
if (!box.options.fullWidth) {
|
|
box.width = newMaxChartAreaWidth;
|
|
}
|
|
});
|
|
|
|
maxChartAreaHeight = newMaxChartAreaHeight;
|
|
maxChartAreaWidth = newMaxChartAreaWidth;
|
|
}
|
|
|
|
// Step 7 - Position the boxes
|
|
var left = xPadding;
|
|
var top = yPadding;
|
|
|
|
helpers.each(leftBoxes.concat(topBoxes), placeBox);
|
|
|
|
// Account for chart width and height
|
|
left += maxChartAreaWidth;
|
|
top += maxChartAreaHeight;
|
|
|
|
helpers.each(rightBoxes, placeBox);
|
|
helpers.each(bottomBoxes, placeBox);
|
|
|
|
function placeBox(box) {
|
|
if (box.isHorizontal()) {
|
|
box.left = box.options.fullWidth ? xPadding : totalLeftBoxesWidth;
|
|
box.right = box.options.fullWidth ? width - xPadding : totalLeftBoxesWidth + maxChartAreaWidth;
|
|
box.top = top;
|
|
box.bottom = top + box.height;
|
|
|
|
// Move to next point
|
|
top = box.bottom;
|
|
|
|
} else {
|
|
|
|
box.left = left;
|
|
box.right = left + box.width;
|
|
box.top = totalTopBoxesHeight;
|
|
box.bottom = totalTopBoxesHeight + maxChartAreaHeight;
|
|
|
|
// Move to next point
|
|
left = box.right;
|
|
}
|
|
}
|
|
|
|
// Step 8
|
|
chartInstance.chartArea = {
|
|
left: totalLeftBoxesWidth,
|
|
top: totalTopBoxesHeight,
|
|
right: totalLeftBoxesWidth + maxChartAreaWidth,
|
|
bottom: totalTopBoxesHeight + maxChartAreaHeight
|
|
};
|
|
|
|
// Step 9
|
|
helpers.each(chartAreaBoxes, function(box) {
|
|
box.left = chartInstance.chartArea.left;
|
|
box.top = chartInstance.chartArea.top;
|
|
box.right = chartInstance.chartArea.right;
|
|
box.bottom = chartInstance.chartArea.bottom;
|
|
|
|
box.update(maxChartAreaWidth, maxChartAreaHeight);
|
|
});
|
|
}
|
|
};
|
|
};
|
|
|
|
},{}],29:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
var noop = helpers.noop;
|
|
|
|
Chart.defaults.global.legend = {
|
|
|
|
display: true,
|
|
position: 'top',
|
|
fullWidth: true, // marks that this box should take the full width of the canvas (pushing down other boxes)
|
|
reverse: false,
|
|
|
|
// a callback that will handle
|
|
onClick: function(e, legendItem) {
|
|
var index = legendItem.datasetIndex;
|
|
var ci = this.chart;
|
|
var meta = ci.getDatasetMeta(index);
|
|
|
|
// See controller.isDatasetVisible comment
|
|
meta.hidden = meta.hidden === null? !ci.data.datasets[index].hidden : null;
|
|
|
|
// We hid a dataset ... rerender the chart
|
|
ci.update();
|
|
},
|
|
|
|
labels: {
|
|
boxWidth: 40,
|
|
padding: 10,
|
|
// Generates labels shown in the legend
|
|
// Valid properties to return:
|
|
// text : text to display
|
|
// fillStyle : fill of coloured box
|
|
// strokeStyle: stroke of coloured box
|
|
// hidden : if this legend item refers to a hidden item
|
|
// lineCap : cap style for line
|
|
// lineDash
|
|
// lineDashOffset :
|
|
// lineJoin :
|
|
// lineWidth :
|
|
generateLabels: function(chart) {
|
|
var data = chart.data;
|
|
return helpers.isArray(data.datasets) ? data.datasets.map(function(dataset, i) {
|
|
return {
|
|
text: dataset.label,
|
|
fillStyle: (!helpers.isArray(dataset.backgroundColor) ? dataset.backgroundColor : dataset.backgroundColor[0]),
|
|
hidden: !chart.isDatasetVisible(i),
|
|
lineCap: dataset.borderCapStyle,
|
|
lineDash: dataset.borderDash,
|
|
lineDashOffset: dataset.borderDashOffset,
|
|
lineJoin: dataset.borderJoinStyle,
|
|
lineWidth: dataset.borderWidth,
|
|
strokeStyle: dataset.borderColor,
|
|
pointStyle: dataset.pointStyle,
|
|
|
|
// Below is extra data used for toggling the datasets
|
|
datasetIndex: i
|
|
};
|
|
}, this) : [];
|
|
}
|
|
}
|
|
};
|
|
|
|
Chart.Legend = Chart.Element.extend({
|
|
|
|
initialize: function(config) {
|
|
helpers.extend(this, config);
|
|
|
|
// Contains hit boxes for each dataset (in dataset order)
|
|
this.legendHitBoxes = [];
|
|
|
|
// Are we in doughnut mode which has a different data type
|
|
this.doughnutMode = false;
|
|
},
|
|
|
|
// These methods are ordered by lifecyle. Utilities then follow.
|
|
// Any function defined here is inherited by all legend types.
|
|
// Any function can be extended by the legend type
|
|
|
|
beforeUpdate: noop,
|
|
update: function(maxWidth, maxHeight, margins) {
|
|
var me = this;
|
|
|
|
// Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
|
|
me.beforeUpdate();
|
|
|
|
// Absorb the master measurements
|
|
me.maxWidth = maxWidth;
|
|
me.maxHeight = maxHeight;
|
|
me.margins = margins;
|
|
|
|
// Dimensions
|
|
me.beforeSetDimensions();
|
|
me.setDimensions();
|
|
me.afterSetDimensions();
|
|
// Labels
|
|
me.beforeBuildLabels();
|
|
me.buildLabels();
|
|
me.afterBuildLabels();
|
|
|
|
// Fit
|
|
me.beforeFit();
|
|
me.fit();
|
|
me.afterFit();
|
|
//
|
|
me.afterUpdate();
|
|
|
|
return me.minSize;
|
|
},
|
|
afterUpdate: noop,
|
|
|
|
//
|
|
|
|
beforeSetDimensions: noop,
|
|
setDimensions: function() {
|
|
var me = this;
|
|
// Set the unconstrained dimension before label rotation
|
|
if (me.isHorizontal()) {
|
|
// Reset position before calculating rotation
|
|
me.width = me.maxWidth;
|
|
me.left = 0;
|
|
me.right = me.width;
|
|
} else {
|
|
me.height = me.maxHeight;
|
|
|
|
// Reset position before calculating rotation
|
|
me.top = 0;
|
|
me.bottom = me.height;
|
|
}
|
|
|
|
// Reset padding
|
|
me.paddingLeft = 0;
|
|
me.paddingTop = 0;
|
|
me.paddingRight = 0;
|
|
me.paddingBottom = 0;
|
|
|
|
// Reset minSize
|
|
me.minSize = {
|
|
width: 0,
|
|
height: 0
|
|
};
|
|
},
|
|
afterSetDimensions: noop,
|
|
|
|
//
|
|
|
|
beforeBuildLabels: noop,
|
|
buildLabels: function() {
|
|
var me = this;
|
|
me.legendItems = me.options.labels.generateLabels.call(me, me.chart);
|
|
if(me.options.reverse){
|
|
me.legendItems.reverse();
|
|
}
|
|
},
|
|
afterBuildLabels: noop,
|
|
|
|
//
|
|
|
|
beforeFit: noop,
|
|
fit: function() {
|
|
var me = this;
|
|
var opts = me.options;
|
|
var labelOpts = opts.labels;
|
|
var display = opts.display;
|
|
|
|
var ctx = me.ctx;
|
|
|
|
var globalDefault = Chart.defaults.global,
|
|
itemOrDefault = helpers.getValueOrDefault,
|
|
fontSize = itemOrDefault(labelOpts.fontSize, globalDefault.defaultFontSize),
|
|
fontStyle = itemOrDefault(labelOpts.fontStyle, globalDefault.defaultFontStyle),
|
|
fontFamily = itemOrDefault(labelOpts.fontFamily, globalDefault.defaultFontFamily),
|
|
labelFont = helpers.fontString(fontSize, fontStyle, fontFamily);
|
|
|
|
// Reset hit boxes
|
|
var hitboxes = me.legendHitBoxes = [];
|
|
|
|
var minSize = me.minSize;
|
|
var isHorizontal = me.isHorizontal();
|
|
|
|
if (isHorizontal) {
|
|
minSize.width = me.maxWidth; // fill all the width
|
|
minSize.height = display ? 10 : 0;
|
|
} else {
|
|
minSize.width = display ? 10 : 0;
|
|
minSize.height = me.maxHeight; // fill all the height
|
|
}
|
|
|
|
// Increase sizes here
|
|
if (display) {
|
|
ctx.font = labelFont;
|
|
|
|
if (isHorizontal) {
|
|
// Labels
|
|
|
|
// Width of each line of legend boxes. Labels wrap onto multiple lines when there are too many to fit on one
|
|
var lineWidths = me.lineWidths = [0];
|
|
var totalHeight = me.legendItems.length ? fontSize + (labelOpts.padding) : 0;
|
|
|
|
ctx.textAlign = "left";
|
|
ctx.textBaseline = 'top';
|
|
|
|
helpers.each(me.legendItems, function(legendItem, i) {
|
|
var boxWidth = labelOpts.usePointStyle ?
|
|
fontSize * Math.sqrt(2) :
|
|
labelOpts.boxWidth;
|
|
|
|
var width = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;
|
|
if (lineWidths[lineWidths.length - 1] + width + labelOpts.padding >= me.width) {
|
|
totalHeight += fontSize + (labelOpts.padding);
|
|
lineWidths[lineWidths.length] = me.left;
|
|
}
|
|
|
|
// Store the hitbox width and height here. Final position will be updated in `draw`
|
|
hitboxes[i] = {
|
|
left: 0,
|
|
top: 0,
|
|
width: width,
|
|
height: fontSize
|
|
};
|
|
|
|
lineWidths[lineWidths.length - 1] += width + labelOpts.padding;
|
|
});
|
|
|
|
minSize.height += totalHeight;
|
|
|
|
} else {
|
|
var vPadding = labelOpts.padding;
|
|
var columnWidths = me.columnWidths = [];
|
|
var totalWidth = labelOpts.padding;
|
|
var currentColWidth = 0;
|
|
var currentColHeight = 0;
|
|
var itemHeight = fontSize + vPadding;
|
|
|
|
helpers.each(me.legendItems, function(legendItem, i) {
|
|
// If usePointStyle is set, multiple boxWidth by 2 since it represents
|
|
// the radius and not truly the width
|
|
var boxWidth = labelOpts.usePointStyle ? 2 * labelOpts.boxWidth : labelOpts.boxWidth;
|
|
|
|
var itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;
|
|
|
|
// If too tall, go to new column
|
|
if (currentColHeight + itemHeight > minSize.height) {
|
|
totalWidth += currentColWidth + labelOpts.padding;
|
|
columnWidths.push(currentColWidth); // previous column width
|
|
|
|
currentColWidth = 0;
|
|
currentColHeight = 0;
|
|
}
|
|
|
|
// Get max width
|
|
currentColWidth = Math.max(currentColWidth, itemWidth);
|
|
currentColHeight += itemHeight;
|
|
|
|
// Store the hitbox width and height here. Final position will be updated in `draw`
|
|
hitboxes[i] = {
|
|
left: 0,
|
|
top: 0,
|
|
width: itemWidth,
|
|
height: fontSize
|
|
};
|
|
});
|
|
|
|
totalWidth += currentColWidth;
|
|
columnWidths.push(currentColWidth);
|
|
minSize.width += totalWidth;
|
|
}
|
|
}
|
|
|
|
me.width = minSize.width;
|
|
me.height = minSize.height;
|
|
},
|
|
afterFit: noop,
|
|
|
|
// Shared Methods
|
|
isHorizontal: function() {
|
|
return this.options.position === "top" || this.options.position === "bottom";
|
|
},
|
|
|
|
// Actualy draw the legend on the canvas
|
|
draw: function() {
|
|
var me = this;
|
|
var opts = me.options;
|
|
var labelOpts = opts.labels;
|
|
var globalDefault = Chart.defaults.global,
|
|
lineDefault = globalDefault.elements.line,
|
|
legendWidth = me.width,
|
|
lineWidths = me.lineWidths;
|
|
|
|
if (opts.display) {
|
|
var ctx = me.ctx,
|
|
cursor,
|
|
itemOrDefault = helpers.getValueOrDefault,
|
|
fontColor = itemOrDefault(labelOpts.fontColor, globalDefault.defaultFontColor),
|
|
fontSize = itemOrDefault(labelOpts.fontSize, globalDefault.defaultFontSize),
|
|
fontStyle = itemOrDefault(labelOpts.fontStyle, globalDefault.defaultFontStyle),
|
|
fontFamily = itemOrDefault(labelOpts.fontFamily, globalDefault.defaultFontFamily),
|
|
labelFont = helpers.fontString(fontSize, fontStyle, fontFamily);
|
|
|
|
// Canvas setup
|
|
ctx.textAlign = "left";
|
|
ctx.textBaseline = 'top';
|
|
ctx.lineWidth = 0.5;
|
|
ctx.strokeStyle = fontColor; // for strikethrough effect
|
|
ctx.fillStyle = fontColor; // render in correct colour
|
|
ctx.font = labelFont;
|
|
|
|
var boxWidth = labelOpts.boxWidth,
|
|
hitboxes = me.legendHitBoxes;
|
|
|
|
// current position
|
|
var drawLegendBox = function(x, y, legendItem) {
|
|
if (isNaN(boxWidth) || boxWidth <= 0) {
|
|
return;
|
|
}
|
|
|
|
// Set the ctx for the box
|
|
ctx.save();
|
|
|
|
ctx.fillStyle = itemOrDefault(legendItem.fillStyle, globalDefault.defaultColor);
|
|
ctx.lineCap = itemOrDefault(legendItem.lineCap, lineDefault.borderCapStyle);
|
|
ctx.lineDashOffset = itemOrDefault(legendItem.lineDashOffset, lineDefault.borderDashOffset);
|
|
ctx.lineJoin = itemOrDefault(legendItem.lineJoin, lineDefault.borderJoinStyle);
|
|
ctx.lineWidth = itemOrDefault(legendItem.lineWidth, lineDefault.borderWidth);
|
|
ctx.strokeStyle = itemOrDefault(legendItem.strokeStyle, globalDefault.defaultColor);
|
|
|
|
if (ctx.setLineDash) {
|
|
// IE 9 and 10 do not support line dash
|
|
ctx.setLineDash(itemOrDefault(legendItem.lineDash, lineDefault.borderDash));
|
|
}
|
|
|
|
if (opts.labels && opts.labels.usePointStyle) {
|
|
// Recalulate x and y for drawPoint() because its expecting
|
|
// x and y to be center of figure (instead of top left)
|
|
var radius = fontSize * Math.SQRT2 / 2;
|
|
var offSet = radius / Math.SQRT2;
|
|
var centerX = x + offSet;
|
|
var centerY = y + offSet;
|
|
|
|
// Draw pointStyle as legend symbol
|
|
Chart.canvasHelpers.drawPoint(ctx, legendItem.pointStyle, radius, centerX, centerY);
|
|
}
|
|
else {
|
|
// Draw box as legend symbol
|
|
ctx.strokeRect(x, y, boxWidth, fontSize);
|
|
ctx.fillRect(x, y, boxWidth, fontSize);
|
|
}
|
|
|
|
ctx.restore();
|
|
};
|
|
var fillText = function(x, y, legendItem, textWidth) {
|
|
ctx.fillText(legendItem.text, boxWidth + (fontSize / 2) + x, y);
|
|
|
|
if (legendItem.hidden) {
|
|
// Strikethrough the text if hidden
|
|
ctx.beginPath();
|
|
ctx.lineWidth = 2;
|
|
ctx.moveTo(boxWidth + (fontSize / 2) + x, y + (fontSize / 2));
|
|
ctx.lineTo(boxWidth + (fontSize / 2) + x + textWidth, y + (fontSize / 2));
|
|
ctx.stroke();
|
|
}
|
|
};
|
|
|
|
// Horizontal
|
|
var isHorizontal = me.isHorizontal();
|
|
if (isHorizontal) {
|
|
cursor = {
|
|
x: me.left + ((legendWidth - lineWidths[0]) / 2),
|
|
y: me.top + labelOpts.padding,
|
|
line: 0
|
|
};
|
|
} else {
|
|
cursor = {
|
|
x: me.left + labelOpts.padding,
|
|
y: me.top + labelOpts.padding,
|
|
line: 0
|
|
};
|
|
}
|
|
|
|
var itemHeight = fontSize + labelOpts.padding;
|
|
helpers.each(me.legendItems, function(legendItem, i) {
|
|
var textWidth = ctx.measureText(legendItem.text).width,
|
|
width = labelOpts.usePointStyle ?
|
|
fontSize + (fontSize / 2) + textWidth :
|
|
boxWidth + (fontSize / 2) + textWidth,
|
|
x = cursor.x,
|
|
y = cursor.y;
|
|
|
|
if (isHorizontal) {
|
|
if (x + width >= legendWidth) {
|
|
y = cursor.y += itemHeight;
|
|
cursor.line++;
|
|
x = cursor.x = me.left + ((legendWidth - lineWidths[cursor.line]) / 2);
|
|
}
|
|
} else {
|
|
if (y + itemHeight > me.bottom) {
|
|
x = cursor.x = x + me.columnWidths[cursor.line] + labelOpts.padding;
|
|
y = cursor.y = me.top;
|
|
cursor.line++;
|
|
}
|
|
}
|
|
|
|
drawLegendBox(x, y, legendItem);
|
|
|
|
hitboxes[i].left = x;
|
|
hitboxes[i].top = y;
|
|
|
|
// Fill the actual label
|
|
fillText(x, y, legendItem, textWidth);
|
|
|
|
if (isHorizontal) {
|
|
cursor.x += width + (labelOpts.padding);
|
|
} else {
|
|
cursor.y += itemHeight;
|
|
}
|
|
|
|
});
|
|
}
|
|
},
|
|
|
|
// Handle an event
|
|
handleEvent: function(e) {
|
|
var me = this;
|
|
var position = helpers.getRelativePosition(e, me.chart.chart),
|
|
x = position.x,
|
|
y = position.y,
|
|
opts = me.options;
|
|
|
|
if (x >= me.left && x <= me.right && y >= me.top && y <= me.bottom) {
|
|
// See if we are touching one of the dataset boxes
|
|
var lh = me.legendHitBoxes;
|
|
for (var i = 0; i < lh.length; ++i) {
|
|
var hitBox = lh[i];
|
|
|
|
if (x >= hitBox.left && x <= hitBox.left + hitBox.width && y >= hitBox.top && y <= hitBox.top + hitBox.height) {
|
|
// Touching an element
|
|
if (opts.onClick) {
|
|
opts.onClick.call(me, e, me.legendItems[i]);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
// Register the legend plugin
|
|
Chart.plugins.register({
|
|
beforeInit: function(chartInstance) {
|
|
var opts = chartInstance.options;
|
|
var legendOpts = opts.legend;
|
|
|
|
if (legendOpts) {
|
|
chartInstance.legend = new Chart.Legend({
|
|
ctx: chartInstance.chart.ctx,
|
|
options: legendOpts,
|
|
chart: chartInstance
|
|
});
|
|
|
|
Chart.layoutService.addBox(chartInstance, chartInstance.legend);
|
|
}
|
|
}
|
|
});
|
|
};
|
|
|
|
},{}],30:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var noop = Chart.helpers.noop;
|
|
|
|
/**
|
|
* The plugin service singleton
|
|
* @namespace Chart.plugins
|
|
* @since 2.1.0
|
|
*/
|
|
Chart.plugins = {
|
|
_plugins: [],
|
|
|
|
/**
|
|
* Registers the given plugin(s) if not already registered.
|
|
* @param {Array|Object} plugins plugin instance(s).
|
|
*/
|
|
register: function(plugins) {
|
|
var p = this._plugins;
|
|
([]).concat(plugins).forEach(function(plugin) {
|
|
if (p.indexOf(plugin) === -1) {
|
|
p.push(plugin);
|
|
}
|
|
});
|
|
},
|
|
|
|
/**
|
|
* Unregisters the given plugin(s) only if registered.
|
|
* @param {Array|Object} plugins plugin instance(s).
|
|
*/
|
|
unregister: function(plugins) {
|
|
var p = this._plugins;
|
|
([]).concat(plugins).forEach(function(plugin) {
|
|
var idx = p.indexOf(plugin);
|
|
if (idx !== -1) {
|
|
p.splice(idx, 1);
|
|
}
|
|
});
|
|
},
|
|
|
|
/**
|
|
* Remove all registered p^lugins.
|
|
* @since 2.1.5
|
|
*/
|
|
clear: function() {
|
|
this._plugins = [];
|
|
},
|
|
|
|
/**
|
|
* Returns the number of registered plugins?
|
|
* @returns {Number}
|
|
* @since 2.1.5
|
|
*/
|
|
count: function() {
|
|
return this._plugins.length;
|
|
},
|
|
|
|
/**
|
|
* Returns all registered plugin intances.
|
|
* @returns {Array} array of plugin objects.
|
|
* @since 2.1.5
|
|
*/
|
|
getAll: function() {
|
|
return this._plugins;
|
|
},
|
|
|
|
/**
|
|
* Calls registered plugins on the specified extension, with the given args. This
|
|
* method immediately returns as soon as a plugin explicitly returns false. The
|
|
* returned value can be used, for instance, to interrupt the current action.
|
|
* @param {String} extension the name of the plugin method to call (e.g. 'beforeUpdate').
|
|
* @param {Array} [args] extra arguments to apply to the extension call.
|
|
* @returns {Boolean} false if any of the plugins return false, else returns true.
|
|
*/
|
|
notify: function(extension, args) {
|
|
var plugins = this._plugins;
|
|
var ilen = plugins.length;
|
|
var i, plugin;
|
|
|
|
for (i=0; i<ilen; ++i) {
|
|
plugin = plugins[i];
|
|
if (typeof plugin[extension] === 'function') {
|
|
if (plugin[extension].apply(plugin, args || []) === false) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Plugin extension methods.
|
|
* @interface Chart.PluginBase
|
|
* @since 2.1.0
|
|
*/
|
|
Chart.PluginBase = Chart.Element.extend({
|
|
// Called at start of chart init
|
|
beforeInit: noop,
|
|
|
|
// Called at end of chart init
|
|
afterInit: noop,
|
|
|
|
// Called at start of update
|
|
beforeUpdate: noop,
|
|
|
|
// Called at end of update
|
|
afterUpdate: noop,
|
|
|
|
// Called at start of draw
|
|
beforeDraw: noop,
|
|
|
|
// Called at end of draw
|
|
afterDraw: noop,
|
|
|
|
// Called during destroy
|
|
destroy: noop
|
|
});
|
|
|
|
/**
|
|
* Provided for backward compatibility, use Chart.plugins instead
|
|
* @namespace Chart.pluginService
|
|
* @deprecated since version 2.1.5
|
|
* @todo remove me at version 3
|
|
*/
|
|
Chart.pluginService = Chart.plugins;
|
|
};
|
|
|
|
},{}],31:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
|
|
Chart.defaults.scale = {
|
|
display: true,
|
|
position: "left",
|
|
|
|
// grid line settings
|
|
gridLines: {
|
|
display: true,
|
|
color: "rgba(0, 0, 0, 0.1)",
|
|
lineWidth: 1,
|
|
drawBorder: true,
|
|
drawOnChartArea: true,
|
|
drawTicks: true,
|
|
tickMarkLength: 10,
|
|
zeroLineWidth: 1,
|
|
zeroLineColor: "rgba(0,0,0,0.25)",
|
|
offsetGridLines: false,
|
|
borderDash: [],
|
|
borderDashOffset: 0.0
|
|
},
|
|
|
|
// scale label
|
|
scaleLabel: {
|
|
// actual label
|
|
labelString: '',
|
|
|
|
// display property
|
|
display: false
|
|
},
|
|
|
|
// label settings
|
|
ticks: {
|
|
beginAtZero: false,
|
|
minRotation: 0,
|
|
maxRotation: 50,
|
|
mirror: false,
|
|
padding: 10,
|
|
reverse: false,
|
|
display: true,
|
|
autoSkip: true,
|
|
autoSkipPadding: 0,
|
|
labelOffset: 0,
|
|
// We pass through arrays to be rendered as multiline labels, we convert Others to strings here.
|
|
callback: function(value) {
|
|
return helpers.isArray(value) ? value : '' + value;
|
|
}
|
|
}
|
|
};
|
|
|
|
Chart.Scale = Chart.Element.extend({
|
|
|
|
// These methods are ordered by lifecyle. Utilities then follow.
|
|
// Any function defined here is inherited by all scale types.
|
|
// Any function can be extended by the scale type
|
|
|
|
beforeUpdate: function() {
|
|
helpers.callCallback(this.options.beforeUpdate, [this]);
|
|
},
|
|
update: function(maxWidth, maxHeight, margins) {
|
|
var me = this;
|
|
|
|
// Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
|
|
me.beforeUpdate();
|
|
|
|
// Absorb the master measurements
|
|
me.maxWidth = maxWidth;
|
|
me.maxHeight = maxHeight;
|
|
me.margins = helpers.extend({
|
|
left: 0,
|
|
right: 0,
|
|
top: 0,
|
|
bottom: 0
|
|
}, margins);
|
|
|
|
// Dimensions
|
|
me.beforeSetDimensions();
|
|
me.setDimensions();
|
|
me.afterSetDimensions();
|
|
|
|
// Data min/max
|
|
me.beforeDataLimits();
|
|
me.determineDataLimits();
|
|
me.afterDataLimits();
|
|
|
|
// Ticks
|
|
me.beforeBuildTicks();
|
|
me.buildTicks();
|
|
me.afterBuildTicks();
|
|
|
|
me.beforeTickToLabelConversion();
|
|
me.convertTicksToLabels();
|
|
me.afterTickToLabelConversion();
|
|
|
|
// Tick Rotation
|
|
me.beforeCalculateTickRotation();
|
|
me.calculateTickRotation();
|
|
me.afterCalculateTickRotation();
|
|
// Fit
|
|
me.beforeFit();
|
|
me.fit();
|
|
me.afterFit();
|
|
//
|
|
me.afterUpdate();
|
|
|
|
return me.minSize;
|
|
|
|
},
|
|
afterUpdate: function() {
|
|
helpers.callCallback(this.options.afterUpdate, [this]);
|
|
},
|
|
|
|
//
|
|
|
|
beforeSetDimensions: function() {
|
|
helpers.callCallback(this.options.beforeSetDimensions, [this]);
|
|
},
|
|
setDimensions: function() {
|
|
var me = this;
|
|
// Set the unconstrained dimension before label rotation
|
|
if (me.isHorizontal()) {
|
|
// Reset position before calculating rotation
|
|
me.width = me.maxWidth;
|
|
me.left = 0;
|
|
me.right = me.width;
|
|
} else {
|
|
me.height = me.maxHeight;
|
|
|
|
// Reset position before calculating rotation
|
|
me.top = 0;
|
|
me.bottom = me.height;
|
|
}
|
|
|
|
// Reset padding
|
|
me.paddingLeft = 0;
|
|
me.paddingTop = 0;
|
|
me.paddingRight = 0;
|
|
me.paddingBottom = 0;
|
|
},
|
|
afterSetDimensions: function() {
|
|
helpers.callCallback(this.options.afterSetDimensions, [this]);
|
|
},
|
|
|
|
// Data limits
|
|
beforeDataLimits: function() {
|
|
helpers.callCallback(this.options.beforeDataLimits, [this]);
|
|
},
|
|
determineDataLimits: helpers.noop,
|
|
afterDataLimits: function() {
|
|
helpers.callCallback(this.options.afterDataLimits, [this]);
|
|
},
|
|
|
|
//
|
|
beforeBuildTicks: function() {
|
|
helpers.callCallback(this.options.beforeBuildTicks, [this]);
|
|
},
|
|
buildTicks: helpers.noop,
|
|
afterBuildTicks: function() {
|
|
helpers.callCallback(this.options.afterBuildTicks, [this]);
|
|
},
|
|
|
|
beforeTickToLabelConversion: function() {
|
|
helpers.callCallback(this.options.beforeTickToLabelConversion, [this]);
|
|
},
|
|
convertTicksToLabels: function() {
|
|
var me = this;
|
|
// Convert ticks to strings
|
|
me.ticks = me.ticks.map(function(numericalTick, index, ticks) {
|
|
if (me.options.ticks.userCallback) {
|
|
return me.options.ticks.userCallback(numericalTick, index, ticks);
|
|
}
|
|
return me.options.ticks.callback(numericalTick, index, ticks);
|
|
},
|
|
me);
|
|
},
|
|
afterTickToLabelConversion: function() {
|
|
helpers.callCallback(this.options.afterTickToLabelConversion, [this]);
|
|
},
|
|
|
|
//
|
|
|
|
beforeCalculateTickRotation: function() {
|
|
helpers.callCallback(this.options.beforeCalculateTickRotation, [this]);
|
|
},
|
|
calculateTickRotation: function() {
|
|
var me = this;
|
|
var context = me.ctx;
|
|
var globalDefaults = Chart.defaults.global;
|
|
var optionTicks = me.options.ticks;
|
|
|
|
//Get the width of each grid by calculating the difference
|
|
//between x offsets between 0 and 1.
|
|
var tickFontSize = helpers.getValueOrDefault(optionTicks.fontSize, globalDefaults.defaultFontSize);
|
|
var tickFontStyle = helpers.getValueOrDefault(optionTicks.fontStyle, globalDefaults.defaultFontStyle);
|
|
var tickFontFamily = helpers.getValueOrDefault(optionTicks.fontFamily, globalDefaults.defaultFontFamily);
|
|
var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily);
|
|
context.font = tickLabelFont;
|
|
|
|
var firstWidth = context.measureText(me.ticks[0]).width;
|
|
var lastWidth = context.measureText(me.ticks[me.ticks.length - 1]).width;
|
|
var firstRotated;
|
|
|
|
me.labelRotation = optionTicks.minRotation || 0;
|
|
me.paddingRight = 0;
|
|
me.paddingLeft = 0;
|
|
|
|
if (me.options.display) {
|
|
if (me.isHorizontal()) {
|
|
me.paddingRight = lastWidth / 2 + 3;
|
|
me.paddingLeft = firstWidth / 2 + 3;
|
|
|
|
if (!me.longestTextCache) {
|
|
me.longestTextCache = {};
|
|
}
|
|
var originalLabelWidth = helpers.longestText(context, tickLabelFont, me.ticks, me.longestTextCache);
|
|
var labelWidth = originalLabelWidth;
|
|
var cosRotation;
|
|
var sinRotation;
|
|
|
|
// Allow 3 pixels x2 padding either side for label readability
|
|
// only the index matters for a dataset scale, but we want a consistent interface between scales
|
|
var tickWidth = me.getPixelForTick(1) - me.getPixelForTick(0) - 6;
|
|
|
|
//Max label rotation can be set or default to 90 - also act as a loop counter
|
|
while (labelWidth > tickWidth && me.labelRotation < optionTicks.maxRotation) {
|
|
cosRotation = Math.cos(helpers.toRadians(me.labelRotation));
|
|
sinRotation = Math.sin(helpers.toRadians(me.labelRotation));
|
|
|
|
firstRotated = cosRotation * firstWidth;
|
|
|
|
// We're right aligning the text now.
|
|
if (firstRotated + tickFontSize / 2 > me.yLabelWidth) {
|
|
me.paddingLeft = firstRotated + tickFontSize / 2;
|
|
}
|
|
|
|
me.paddingRight = tickFontSize / 2;
|
|
|
|
if (sinRotation * originalLabelWidth > me.maxHeight) {
|
|
// go back one step
|
|
me.labelRotation--;
|
|
break;
|
|
}
|
|
|
|
me.labelRotation++;
|
|
labelWidth = cosRotation * originalLabelWidth;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (me.margins) {
|
|
me.paddingLeft = Math.max(me.paddingLeft - me.margins.left, 0);
|
|
me.paddingRight = Math.max(me.paddingRight - me.margins.right, 0);
|
|
}
|
|
},
|
|
afterCalculateTickRotation: function() {
|
|
helpers.callCallback(this.options.afterCalculateTickRotation, [this]);
|
|
},
|
|
|
|
//
|
|
|
|
beforeFit: function() {
|
|
helpers.callCallback(this.options.beforeFit, [this]);
|
|
},
|
|
fit: function() {
|
|
var me = this;
|
|
// Reset
|
|
var minSize = me.minSize = {
|
|
width: 0,
|
|
height: 0
|
|
};
|
|
|
|
var opts = me.options;
|
|
var globalDefaults = Chart.defaults.global;
|
|
var tickOpts = opts.ticks;
|
|
var scaleLabelOpts = opts.scaleLabel;
|
|
var gridLineOpts = opts.gridLines;
|
|
var display = opts.display;
|
|
var isHorizontal = me.isHorizontal();
|
|
|
|
var tickFontSize = helpers.getValueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
|
|
var tickFontStyle = helpers.getValueOrDefault(tickOpts.fontStyle, globalDefaults.defaultFontStyle);
|
|
var tickFontFamily = helpers.getValueOrDefault(tickOpts.fontFamily, globalDefaults.defaultFontFamily);
|
|
var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily);
|
|
|
|
var scaleLabelFontSize = helpers.getValueOrDefault(scaleLabelOpts.fontSize, globalDefaults.defaultFontSize);
|
|
|
|
var tickMarkLength = opts.gridLines.tickMarkLength;
|
|
|
|
// Width
|
|
if (isHorizontal) {
|
|
// subtract the margins to line up with the chartArea if we are a full width scale
|
|
minSize.width = me.isFullWidth() ? me.maxWidth - me.margins.left - me.margins.right : me.maxWidth;
|
|
} else {
|
|
minSize.width = display && gridLineOpts.drawTicks ? tickMarkLength : 0;
|
|
}
|
|
|
|
// height
|
|
if (isHorizontal) {
|
|
minSize.height = display && gridLineOpts.drawTicks ? tickMarkLength : 0;
|
|
} else {
|
|
minSize.height = me.maxHeight; // fill all the height
|
|
}
|
|
|
|
// Are we showing a title for the scale?
|
|
if (scaleLabelOpts.display && display) {
|
|
if (isHorizontal) {
|
|
minSize.height += (scaleLabelFontSize * 1.5);
|
|
} else {
|
|
minSize.width += (scaleLabelFontSize * 1.5);
|
|
}
|
|
}
|
|
|
|
if (tickOpts.display && display) {
|
|
// Don't bother fitting the ticks if we are not showing them
|
|
if (!me.longestTextCache) {
|
|
me.longestTextCache = {};
|
|
}
|
|
|
|
var largestTextWidth = helpers.longestText(me.ctx, tickLabelFont, me.ticks, me.longestTextCache);
|
|
var tallestLabelHeightInLines = helpers.numberOfLabelLines(me.ticks);
|
|
var lineSpace = tickFontSize * 0.5;
|
|
|
|
if (isHorizontal) {
|
|
// A horizontal axis is more constrained by the height.
|
|
me.longestLabelWidth = largestTextWidth;
|
|
|
|
// TODO - improve this calculation
|
|
var labelHeight = (Math.sin(helpers.toRadians(me.labelRotation)) * me.longestLabelWidth) + (tickFontSize * tallestLabelHeightInLines) + (lineSpace * tallestLabelHeightInLines);
|
|
|
|
minSize.height = Math.min(me.maxHeight, minSize.height + labelHeight);
|
|
me.ctx.font = tickLabelFont;
|
|
|
|
var firstLabelWidth = me.ctx.measureText(me.ticks[0]).width;
|
|
var lastLabelWidth = me.ctx.measureText(me.ticks[me.ticks.length - 1]).width;
|
|
|
|
// Ensure that our ticks are always inside the canvas. When rotated, ticks are right aligned which means that the right padding is dominated
|
|
// by the font height
|
|
var cosRotation = Math.cos(helpers.toRadians(me.labelRotation));
|
|
var sinRotation = Math.sin(helpers.toRadians(me.labelRotation));
|
|
me.paddingLeft = me.labelRotation !== 0 ? (cosRotation * firstLabelWidth) + 3 : firstLabelWidth / 2 + 3; // add 3 px to move away from canvas edges
|
|
me.paddingRight = me.labelRotation !== 0 ? (sinRotation * (tickFontSize / 2)) + 3 : lastLabelWidth / 2 + 3; // when rotated
|
|
} else {
|
|
// A vertical axis is more constrained by the width. Labels are the dominant factor here, so get that length first
|
|
var maxLabelWidth = me.maxWidth - minSize.width;
|
|
|
|
// Account for padding
|
|
var mirror = tickOpts.mirror;
|
|
if (!mirror) {
|
|
largestTextWidth += me.options.ticks.padding;
|
|
} else {
|
|
// If mirrored text is on the inside so don't expand
|
|
largestTextWidth = 0;
|
|
}
|
|
|
|
if (largestTextWidth < maxLabelWidth) {
|
|
// We don't need all the room
|
|
minSize.width += largestTextWidth;
|
|
} else {
|
|
// Expand to max size
|
|
minSize.width = me.maxWidth;
|
|
}
|
|
|
|
me.paddingTop = tickFontSize / 2;
|
|
me.paddingBottom = tickFontSize / 2;
|
|
}
|
|
}
|
|
|
|
if (me.margins) {
|
|
me.paddingLeft = Math.max(me.paddingLeft - me.margins.left, 0);
|
|
me.paddingTop = Math.max(me.paddingTop - me.margins.top, 0);
|
|
me.paddingRight = Math.max(me.paddingRight - me.margins.right, 0);
|
|
me.paddingBottom = Math.max(me.paddingBottom - me.margins.bottom, 0);
|
|
}
|
|
|
|
me.width = minSize.width;
|
|
me.height = minSize.height;
|
|
|
|
},
|
|
afterFit: function() {
|
|
helpers.callCallback(this.options.afterFit, [this]);
|
|
},
|
|
|
|
// Shared Methods
|
|
isHorizontal: function() {
|
|
return this.options.position === "top" || this.options.position === "bottom";
|
|
},
|
|
isFullWidth: function() {
|
|
return (this.options.fullWidth);
|
|
},
|
|
|
|
// Get the correct value. NaN bad inputs, If the value type is object get the x or y based on whether we are horizontal or not
|
|
getRightValue: function(rawValue) {
|
|
// Null and undefined values first
|
|
if (rawValue === null || typeof(rawValue) === 'undefined') {
|
|
return NaN;
|
|
}
|
|
// isNaN(object) returns true, so make sure NaN is checking for a number
|
|
if (typeof(rawValue) === 'number' && isNaN(rawValue)) {
|
|
return NaN;
|
|
}
|
|
// If it is in fact an object, dive in one more level
|
|
if (typeof(rawValue) === "object") {
|
|
if ((rawValue instanceof Date) || (rawValue.isValid)) {
|
|
return rawValue;
|
|
} else {
|
|
return this.getRightValue(this.isHorizontal() ? rawValue.x : rawValue.y);
|
|
}
|
|
}
|
|
|
|
// Value is good, return it
|
|
return rawValue;
|
|
},
|
|
|
|
// Used to get the value to display in the tooltip for the data at the given index
|
|
// function getLabelForIndex(index, datasetIndex)
|
|
getLabelForIndex: helpers.noop,
|
|
|
|
// Used to get data value locations. Value can either be an index or a numerical value
|
|
getPixelForValue: helpers.noop,
|
|
|
|
// Used to get the data value from a given pixel. This is the inverse of getPixelForValue
|
|
getValueForPixel: helpers.noop,
|
|
|
|
// Used for tick location, should
|
|
getPixelForTick: function(index, includeOffset) {
|
|
var me = this;
|
|
if (me.isHorizontal()) {
|
|
var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
|
|
var tickWidth = innerWidth / Math.max((me.ticks.length - ((me.options.gridLines.offsetGridLines) ? 0 : 1)), 1);
|
|
var pixel = (tickWidth * index) + me.paddingLeft;
|
|
|
|
if (includeOffset) {
|
|
pixel += tickWidth / 2;
|
|
}
|
|
|
|
var finalVal = me.left + Math.round(pixel);
|
|
finalVal += me.isFullWidth() ? me.margins.left : 0;
|
|
return finalVal;
|
|
} else {
|
|
var innerHeight = me.height - (me.paddingTop + me.paddingBottom);
|
|
return me.top + (index * (innerHeight / (me.ticks.length - 1)));
|
|
}
|
|
},
|
|
|
|
// Utility for getting the pixel location of a percentage of scale
|
|
getPixelForDecimal: function(decimal /*, includeOffset*/ ) {
|
|
var me = this;
|
|
if (me.isHorizontal()) {
|
|
var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
|
|
var valueOffset = (innerWidth * decimal) + me.paddingLeft;
|
|
|
|
var finalVal = me.left + Math.round(valueOffset);
|
|
finalVal += me.isFullWidth() ? me.margins.left : 0;
|
|
return finalVal;
|
|
} else {
|
|
return me.top + (decimal * me.height);
|
|
}
|
|
},
|
|
|
|
getBasePixel: function() {
|
|
var me = this;
|
|
var min = me.min;
|
|
var max = me.max;
|
|
|
|
return me.getPixelForValue(
|
|
me.beginAtZero? 0:
|
|
min < 0 && max < 0? max :
|
|
min > 0 && max > 0? min :
|
|
0);
|
|
},
|
|
|
|
// Actualy draw the scale on the canvas
|
|
// @param {rectangle} chartArea : the area of the chart to draw full grid lines on
|
|
draw: function(chartArea) {
|
|
var me = this;
|
|
var options = me.options;
|
|
if (!options.display) {
|
|
return;
|
|
}
|
|
|
|
var context = me.ctx;
|
|
var globalDefaults = Chart.defaults.global;
|
|
var optionTicks = options.ticks;
|
|
var gridLines = options.gridLines;
|
|
var scaleLabel = options.scaleLabel;
|
|
|
|
var isRotated = me.labelRotation !== 0;
|
|
var skipRatio;
|
|
var useAutoskipper = optionTicks.autoSkip;
|
|
var isHorizontal = me.isHorizontal();
|
|
|
|
// figure out the maximum number of gridlines to show
|
|
var maxTicks;
|
|
if (optionTicks.maxTicksLimit) {
|
|
maxTicks = optionTicks.maxTicksLimit;
|
|
}
|
|
|
|
var tickFontColor = helpers.getValueOrDefault(optionTicks.fontColor, globalDefaults.defaultFontColor);
|
|
var tickFontSize = helpers.getValueOrDefault(optionTicks.fontSize, globalDefaults.defaultFontSize);
|
|
var tickFontStyle = helpers.getValueOrDefault(optionTicks.fontStyle, globalDefaults.defaultFontStyle);
|
|
var tickFontFamily = helpers.getValueOrDefault(optionTicks.fontFamily, globalDefaults.defaultFontFamily);
|
|
var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily);
|
|
var tl = gridLines.tickMarkLength;
|
|
var borderDash = helpers.getValueOrDefault(gridLines.borderDash, globalDefaults.borderDash);
|
|
var borderDashOffset = helpers.getValueOrDefault(gridLines.borderDashOffset, globalDefaults.borderDashOffset);
|
|
|
|
var scaleLabelFontColor = helpers.getValueOrDefault(scaleLabel.fontColor, globalDefaults.defaultFontColor);
|
|
var scaleLabelFontSize = helpers.getValueOrDefault(scaleLabel.fontSize, globalDefaults.defaultFontSize);
|
|
var scaleLabelFontStyle = helpers.getValueOrDefault(scaleLabel.fontStyle, globalDefaults.defaultFontStyle);
|
|
var scaleLabelFontFamily = helpers.getValueOrDefault(scaleLabel.fontFamily, globalDefaults.defaultFontFamily);
|
|
var scaleLabelFont = helpers.fontString(scaleLabelFontSize, scaleLabelFontStyle, scaleLabelFontFamily);
|
|
|
|
var labelRotationRadians = helpers.toRadians(me.labelRotation);
|
|
var cosRotation = Math.cos(labelRotationRadians);
|
|
var longestRotatedLabel = me.longestLabelWidth * cosRotation;
|
|
|
|
// Make sure we draw text in the correct color and font
|
|
context.fillStyle = tickFontColor;
|
|
|
|
var itemsToDraw = [];
|
|
|
|
if (isHorizontal) {
|
|
skipRatio = false;
|
|
|
|
// Only calculate the skip ratio with the half width of longestRotateLabel if we got an actual rotation
|
|
// See #2584
|
|
if (isRotated) {
|
|
longestRotatedLabel /= 2;
|
|
}
|
|
|
|
if ((longestRotatedLabel + optionTicks.autoSkipPadding) * me.ticks.length > (me.width - (me.paddingLeft + me.paddingRight))) {
|
|
skipRatio = 1 + Math.floor(((longestRotatedLabel + optionTicks.autoSkipPadding) * me.ticks.length) / (me.width - (me.paddingLeft + me.paddingRight)));
|
|
}
|
|
|
|
// if they defined a max number of optionTicks,
|
|
// increase skipRatio until that number is met
|
|
if (maxTicks && me.ticks.length > maxTicks) {
|
|
while (!skipRatio || me.ticks.length / (skipRatio || 1) > maxTicks) {
|
|
if (!skipRatio) {
|
|
skipRatio = 1;
|
|
}
|
|
skipRatio += 1;
|
|
}
|
|
}
|
|
|
|
if (!useAutoskipper) {
|
|
skipRatio = false;
|
|
}
|
|
}
|
|
|
|
|
|
var xTickStart = options.position === "right" ? me.left : me.right - tl;
|
|
var xTickEnd = options.position === "right" ? me.left + tl : me.right;
|
|
var yTickStart = options.position === "bottom" ? me.top : me.bottom - tl;
|
|
var yTickEnd = options.position === "bottom" ? me.top + tl : me.bottom;
|
|
|
|
helpers.each(me.ticks, function(label, index) {
|
|
// If the callback returned a null or undefined value, do not draw this line
|
|
if (label === undefined || label === null) {
|
|
return;
|
|
}
|
|
|
|
var isLastTick = me.ticks.length === index + 1;
|
|
|
|
// Since we always show the last tick,we need may need to hide the last shown one before
|
|
var shouldSkip = (skipRatio > 1 && index % skipRatio > 0) || (index % skipRatio === 0 && index + skipRatio >= me.ticks.length);
|
|
if (shouldSkip && !isLastTick || (label === undefined || label === null)) {
|
|
return;
|
|
}
|
|
|
|
var lineWidth, lineColor;
|
|
if (index === (typeof me.zeroLineIndex !== 'undefined' ? me.zeroLineIndex : 0)) {
|
|
// Draw the first index specially
|
|
lineWidth = gridLines.zeroLineWidth;
|
|
lineColor = gridLines.zeroLineColor;
|
|
} else {
|
|
lineWidth = helpers.getValueAtIndexOrDefault(gridLines.lineWidth, index);
|
|
lineColor = helpers.getValueAtIndexOrDefault(gridLines.color, index);
|
|
}
|
|
|
|
// Common properties
|
|
var tx1, ty1, tx2, ty2, x1, y1, x2, y2, labelX, labelY;
|
|
var textAlign, textBaseline = 'middle';
|
|
|
|
if (isHorizontal) {
|
|
if (!isRotated) {
|
|
textBaseline = options.position === 'top' ? 'bottom' : 'top';
|
|
}
|
|
|
|
textAlign = isRotated ? 'right' : 'center';
|
|
|
|
var xLineValue = me.getPixelForTick(index) + helpers.aliasPixel(lineWidth); // xvalues for grid lines
|
|
labelX = me.getPixelForTick(index, gridLines.offsetGridLines) + optionTicks.labelOffset; // x values for optionTicks (need to consider offsetLabel option)
|
|
labelY = (isRotated) ? me.top + 12 : options.position === 'top' ? me.bottom - tl : me.top + tl;
|
|
|
|
tx1 = tx2 = x1 = x2 = xLineValue;
|
|
ty1 = yTickStart;
|
|
ty2 = yTickEnd;
|
|
y1 = chartArea.top;
|
|
y2 = chartArea.bottom;
|
|
} else {
|
|
if (options.position === 'left') {
|
|
if (optionTicks.mirror) {
|
|
labelX = me.right + optionTicks.padding;
|
|
textAlign = 'left';
|
|
} else {
|
|
labelX = me.right - optionTicks.padding;
|
|
textAlign = 'right';
|
|
}
|
|
} else {
|
|
// right side
|
|
if (optionTicks.mirror) {
|
|
labelX = me.left - optionTicks.padding;
|
|
textAlign = 'right';
|
|
} else {
|
|
labelX = me.left + optionTicks.padding;
|
|
textAlign = 'left';
|
|
}
|
|
}
|
|
|
|
var yLineValue = me.getPixelForTick(index); // xvalues for grid lines
|
|
yLineValue += helpers.aliasPixel(lineWidth);
|
|
labelY = me.getPixelForTick(index, gridLines.offsetGridLines);
|
|
|
|
tx1 = xTickStart;
|
|
tx2 = xTickEnd;
|
|
x1 = chartArea.left;
|
|
x2 = chartArea.right;
|
|
ty1 = ty2 = y1 = y2 = yLineValue;
|
|
}
|
|
|
|
itemsToDraw.push({
|
|
tx1: tx1,
|
|
ty1: ty1,
|
|
tx2: tx2,
|
|
ty2: ty2,
|
|
x1: x1,
|
|
y1: y1,
|
|
x2: x2,
|
|
y2: y2,
|
|
labelX: labelX,
|
|
labelY: labelY,
|
|
glWidth: lineWidth,
|
|
glColor: lineColor,
|
|
glBorderDash: borderDash,
|
|
glBorderDashOffset: borderDashOffset,
|
|
rotation: -1 * labelRotationRadians,
|
|
label: label,
|
|
textBaseline: textBaseline,
|
|
textAlign: textAlign
|
|
});
|
|
});
|
|
|
|
// Draw all of the tick labels, tick marks, and grid lines at the correct places
|
|
helpers.each(itemsToDraw, function(itemToDraw) {
|
|
if (gridLines.display) {
|
|
context.save();
|
|
context.lineWidth = itemToDraw.glWidth;
|
|
context.strokeStyle = itemToDraw.glColor;
|
|
if (context.setLineDash) {
|
|
context.setLineDash(itemToDraw.glBorderDash);
|
|
context.lineDashOffset = itemToDraw.glBorderDashOffset;
|
|
}
|
|
|
|
context.beginPath();
|
|
|
|
if (gridLines.drawTicks) {
|
|
context.moveTo(itemToDraw.tx1, itemToDraw.ty1);
|
|
context.lineTo(itemToDraw.tx2, itemToDraw.ty2);
|
|
}
|
|
|
|
if (gridLines.drawOnChartArea) {
|
|
context.moveTo(itemToDraw.x1, itemToDraw.y1);
|
|
context.lineTo(itemToDraw.x2, itemToDraw.y2);
|
|
}
|
|
|
|
context.stroke();
|
|
context.restore();
|
|
}
|
|
|
|
if (optionTicks.display) {
|
|
context.save();
|
|
context.translate(itemToDraw.labelX, itemToDraw.labelY);
|
|
context.rotate(itemToDraw.rotation);
|
|
context.font = tickLabelFont;
|
|
context.textBaseline = itemToDraw.textBaseline;
|
|
context.textAlign = itemToDraw.textAlign;
|
|
|
|
var label = itemToDraw.label;
|
|
if (helpers.isArray(label)) {
|
|
for (var i = 0, y = 0; i < label.length; ++i) {
|
|
// We just make sure the multiline element is a string here..
|
|
context.fillText('' + label[i], 0, y);
|
|
// apply same lineSpacing as calculated @ L#320
|
|
y += (tickFontSize * 1.5);
|
|
}
|
|
} else {
|
|
context.fillText(label, 0, 0);
|
|
}
|
|
context.restore();
|
|
}
|
|
});
|
|
|
|
if (scaleLabel.display) {
|
|
// Draw the scale label
|
|
var scaleLabelX;
|
|
var scaleLabelY;
|
|
var rotation = 0;
|
|
|
|
if (isHorizontal) {
|
|
scaleLabelX = me.left + ((me.right - me.left) / 2); // midpoint of the width
|
|
scaleLabelY = options.position === 'bottom' ? me.bottom - (scaleLabelFontSize / 2) : me.top + (scaleLabelFontSize / 2);
|
|
} else {
|
|
var isLeft = options.position === 'left';
|
|
scaleLabelX = isLeft ? me.left + (scaleLabelFontSize / 2) : me.right - (scaleLabelFontSize / 2);
|
|
scaleLabelY = me.top + ((me.bottom - me.top) / 2);
|
|
rotation = isLeft ? -0.5 * Math.PI : 0.5 * Math.PI;
|
|
}
|
|
|
|
context.save();
|
|
context.translate(scaleLabelX, scaleLabelY);
|
|
context.rotate(rotation);
|
|
context.textAlign = 'center';
|
|
context.textBaseline = 'middle';
|
|
context.fillStyle = scaleLabelFontColor; // render in correct colour
|
|
context.font = scaleLabelFont;
|
|
context.fillText(scaleLabel.labelString, 0, 0);
|
|
context.restore();
|
|
}
|
|
|
|
if (gridLines.drawBorder) {
|
|
// Draw the line at the edge of the axis
|
|
context.lineWidth = helpers.getValueAtIndexOrDefault(gridLines.lineWidth, 0);
|
|
context.strokeStyle = helpers.getValueAtIndexOrDefault(gridLines.color, 0);
|
|
var x1 = me.left,
|
|
x2 = me.right,
|
|
y1 = me.top,
|
|
y2 = me.bottom;
|
|
|
|
var aliasPixel = helpers.aliasPixel(context.lineWidth);
|
|
if (isHorizontal) {
|
|
y1 = y2 = options.position === 'top' ? me.bottom : me.top;
|
|
y1 += aliasPixel;
|
|
y2 += aliasPixel;
|
|
} else {
|
|
x1 = x2 = options.position === 'left' ? me.right : me.left;
|
|
x1 += aliasPixel;
|
|
x2 += aliasPixel;
|
|
}
|
|
|
|
context.beginPath();
|
|
context.moveTo(x1, y1);
|
|
context.lineTo(x2, y2);
|
|
context.stroke();
|
|
}
|
|
}
|
|
});
|
|
};
|
|
|
|
},{}],32:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
|
|
Chart.scaleService = {
|
|
// Scale registration object. Extensions can register new scale types (such as log or DB scales) and then
|
|
// use the new chart options to grab the correct scale
|
|
constructors: {},
|
|
// Use a registration function so that we can move to an ES6 map when we no longer need to support
|
|
// old browsers
|
|
|
|
// Scale config defaults
|
|
defaults: {},
|
|
registerScaleType: function(type, scaleConstructor, defaults) {
|
|
this.constructors[type] = scaleConstructor;
|
|
this.defaults[type] = helpers.clone(defaults);
|
|
},
|
|
getScaleConstructor: function(type) {
|
|
return this.constructors.hasOwnProperty(type) ? this.constructors[type] : undefined;
|
|
},
|
|
getScaleDefaults: function(type) {
|
|
// Return the scale defaults merged with the global settings so that we always use the latest ones
|
|
return this.defaults.hasOwnProperty(type) ? helpers.scaleMerge(Chart.defaults.scale, this.defaults[type]) : {};
|
|
},
|
|
updateScaleDefaults: function(type, additions) {
|
|
var defaults = this.defaults;
|
|
if (defaults.hasOwnProperty(type)) {
|
|
defaults[type] = helpers.extend(defaults[type], additions);
|
|
}
|
|
},
|
|
addScalesToLayout: function(chartInstance) {
|
|
// Adds each scale to the chart.boxes array to be sized accordingly
|
|
helpers.each(chartInstance.scales, function(scale) {
|
|
Chart.layoutService.addBox(chartInstance, scale);
|
|
});
|
|
}
|
|
};
|
|
};
|
|
},{}],33:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
|
|
Chart.defaults.global.title = {
|
|
display: false,
|
|
position: 'top',
|
|
fullWidth: true, // marks that this box should take the full width of the canvas (pushing down other boxes)
|
|
|
|
fontStyle: 'bold',
|
|
padding: 10,
|
|
|
|
// actual title
|
|
text: ''
|
|
};
|
|
|
|
var noop = helpers.noop;
|
|
Chart.Title = Chart.Element.extend({
|
|
|
|
initialize: function(config) {
|
|
var me = this;
|
|
helpers.extend(me, config);
|
|
me.options = helpers.configMerge(Chart.defaults.global.title, config.options);
|
|
|
|
// Contains hit boxes for each dataset (in dataset order)
|
|
me.legendHitBoxes = [];
|
|
},
|
|
|
|
// These methods are ordered by lifecyle. Utilities then follow.
|
|
|
|
beforeUpdate: function () {
|
|
var chartOpts = this.chart.options;
|
|
if (chartOpts && chartOpts.title) {
|
|
this.options = helpers.configMerge(Chart.defaults.global.title, chartOpts.title);
|
|
}
|
|
},
|
|
update: function(maxWidth, maxHeight, margins) {
|
|
var me = this;
|
|
|
|
// Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
|
|
me.beforeUpdate();
|
|
|
|
// Absorb the master measurements
|
|
me.maxWidth = maxWidth;
|
|
me.maxHeight = maxHeight;
|
|
me.margins = margins;
|
|
|
|
// Dimensions
|
|
me.beforeSetDimensions();
|
|
me.setDimensions();
|
|
me.afterSetDimensions();
|
|
// Labels
|
|
me.beforeBuildLabels();
|
|
me.buildLabels();
|
|
me.afterBuildLabels();
|
|
|
|
// Fit
|
|
me.beforeFit();
|
|
me.fit();
|
|
me.afterFit();
|
|
//
|
|
me.afterUpdate();
|
|
|
|
return me.minSize;
|
|
|
|
},
|
|
afterUpdate: noop,
|
|
|
|
//
|
|
|
|
beforeSetDimensions: noop,
|
|
setDimensions: function() {
|
|
var me = this;
|
|
// Set the unconstrained dimension before label rotation
|
|
if (me.isHorizontal()) {
|
|
// Reset position before calculating rotation
|
|
me.width = me.maxWidth;
|
|
me.left = 0;
|
|
me.right = me.width;
|
|
} else {
|
|
me.height = me.maxHeight;
|
|
|
|
// Reset position before calculating rotation
|
|
me.top = 0;
|
|
me.bottom = me.height;
|
|
}
|
|
|
|
// Reset padding
|
|
me.paddingLeft = 0;
|
|
me.paddingTop = 0;
|
|
me.paddingRight = 0;
|
|
me.paddingBottom = 0;
|
|
|
|
// Reset minSize
|
|
me.minSize = {
|
|
width: 0,
|
|
height: 0
|
|
};
|
|
},
|
|
afterSetDimensions: noop,
|
|
|
|
//
|
|
|
|
beforeBuildLabels: noop,
|
|
buildLabels: noop,
|
|
afterBuildLabels: noop,
|
|
|
|
//
|
|
|
|
beforeFit: noop,
|
|
fit: function() {
|
|
var me = this,
|
|
valueOrDefault = helpers.getValueOrDefault,
|
|
opts = me.options,
|
|
globalDefaults = Chart.defaults.global,
|
|
display = opts.display,
|
|
fontSize = valueOrDefault(opts.fontSize, globalDefaults.defaultFontSize),
|
|
minSize = me.minSize;
|
|
|
|
if (me.isHorizontal()) {
|
|
minSize.width = me.maxWidth; // fill all the width
|
|
minSize.height = display ? fontSize + (opts.padding * 2) : 0;
|
|
} else {
|
|
minSize.width = display ? fontSize + (opts.padding * 2) : 0;
|
|
minSize.height = me.maxHeight; // fill all the height
|
|
}
|
|
|
|
me.width = minSize.width;
|
|
me.height = minSize.height;
|
|
|
|
},
|
|
afterFit: noop,
|
|
|
|
// Shared Methods
|
|
isHorizontal: function() {
|
|
var pos = this.options.position;
|
|
return pos === "top" || pos === "bottom";
|
|
},
|
|
|
|
// Actualy draw the title block on the canvas
|
|
draw: function() {
|
|
var me = this,
|
|
ctx = me.ctx,
|
|
valueOrDefault = helpers.getValueOrDefault,
|
|
opts = me.options,
|
|
globalDefaults = Chart.defaults.global;
|
|
|
|
if (opts.display) {
|
|
var fontSize = valueOrDefault(opts.fontSize, globalDefaults.defaultFontSize),
|
|
fontStyle = valueOrDefault(opts.fontStyle, globalDefaults.defaultFontStyle),
|
|
fontFamily = valueOrDefault(opts.fontFamily, globalDefaults.defaultFontFamily),
|
|
titleFont = helpers.fontString(fontSize, fontStyle, fontFamily),
|
|
rotation = 0,
|
|
titleX,
|
|
titleY,
|
|
top = me.top,
|
|
left = me.left,
|
|
bottom = me.bottom,
|
|
right = me.right;
|
|
|
|
ctx.fillStyle = valueOrDefault(opts.fontColor, globalDefaults.defaultFontColor); // render in correct colour
|
|
ctx.font = titleFont;
|
|
|
|
// Horizontal
|
|
if (me.isHorizontal()) {
|
|
titleX = left + ((right - left) / 2); // midpoint of the width
|
|
titleY = top + ((bottom - top) / 2); // midpoint of the height
|
|
} else {
|
|
titleX = opts.position === 'left' ? left + (fontSize / 2) : right - (fontSize / 2);
|
|
titleY = top + ((bottom - top) / 2);
|
|
rotation = Math.PI * (opts.position === 'left' ? -0.5 : 0.5);
|
|
}
|
|
|
|
ctx.save();
|
|
ctx.translate(titleX, titleY);
|
|
ctx.rotate(rotation);
|
|
ctx.textAlign = 'center';
|
|
ctx.textBaseline = 'middle';
|
|
ctx.fillText(opts.text, 0, 0);
|
|
ctx.restore();
|
|
}
|
|
}
|
|
});
|
|
|
|
// Register the title plugin
|
|
Chart.plugins.register({
|
|
beforeInit: function(chartInstance) {
|
|
var opts = chartInstance.options;
|
|
var titleOpts = opts.title;
|
|
|
|
if (titleOpts) {
|
|
chartInstance.titleBlock = new Chart.Title({
|
|
ctx: chartInstance.chart.ctx,
|
|
options: titleOpts,
|
|
chart: chartInstance
|
|
});
|
|
|
|
Chart.layoutService.addBox(chartInstance, chartInstance.titleBlock);
|
|
}
|
|
}
|
|
});
|
|
};
|
|
|
|
},{}],34:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
|
|
Chart.defaults.global.tooltips = {
|
|
enabled: true,
|
|
custom: null,
|
|
mode: 'single',
|
|
backgroundColor: "rgba(0,0,0,0.8)",
|
|
titleFontStyle: "bold",
|
|
titleSpacing: 2,
|
|
titleMarginBottom: 6,
|
|
titleFontColor: "#fff",
|
|
titleAlign: "left",
|
|
bodySpacing: 2,
|
|
bodyFontColor: "#fff",
|
|
bodyAlign: "left",
|
|
footerFontStyle: "bold",
|
|
footerSpacing: 2,
|
|
footerMarginTop: 6,
|
|
footerFontColor: "#fff",
|
|
footerAlign: "left",
|
|
yPadding: 6,
|
|
xPadding: 6,
|
|
yAlign : 'center',
|
|
xAlign : 'center',
|
|
caretSize: 5,
|
|
cornerRadius: 6,
|
|
multiKeyBackground: '#fff',
|
|
callbacks: {
|
|
// Args are: (tooltipItems, data)
|
|
beforeTitle: helpers.noop,
|
|
title: function(tooltipItems, data) {
|
|
// Pick first xLabel for now
|
|
var title = '';
|
|
var labels = data.labels;
|
|
var labelCount = labels ? labels.length : 0;
|
|
|
|
if (tooltipItems.length > 0) {
|
|
var item = tooltipItems[0];
|
|
|
|
if (item.xLabel) {
|
|
title = item.xLabel;
|
|
} else if (labelCount > 0 && item.index < labelCount) {
|
|
title = labels[item.index];
|
|
}
|
|
}
|
|
|
|
return title;
|
|
},
|
|
afterTitle: helpers.noop,
|
|
|
|
// Args are: (tooltipItems, data)
|
|
beforeBody: helpers.noop,
|
|
|
|
// Args are: (tooltipItem, data)
|
|
beforeLabel: helpers.noop,
|
|
label: function(tooltipItem, data) {
|
|
var datasetLabel = data.datasets[tooltipItem.datasetIndex].label || '';
|
|
return datasetLabel + ': ' + tooltipItem.yLabel;
|
|
},
|
|
labelColor: function(tooltipItem, chartInstance) {
|
|
var meta = chartInstance.getDatasetMeta(tooltipItem.datasetIndex);
|
|
var activeElement = meta.data[tooltipItem.index];
|
|
var view = activeElement._view;
|
|
return {
|
|
borderColor: view.borderColor,
|
|
backgroundColor: view.backgroundColor
|
|
};
|
|
},
|
|
afterLabel: helpers.noop,
|
|
|
|
// Args are: (tooltipItems, data)
|
|
afterBody: helpers.noop,
|
|
|
|
// Args are: (tooltipItems, data)
|
|
beforeFooter: helpers.noop,
|
|
footer: helpers.noop,
|
|
afterFooter: helpers.noop
|
|
}
|
|
};
|
|
|
|
// Helper to push or concat based on if the 2nd parameter is an array or not
|
|
function pushOrConcat(base, toPush) {
|
|
if (toPush) {
|
|
if (helpers.isArray(toPush)) {
|
|
//base = base.concat(toPush);
|
|
Array.prototype.push.apply(base, toPush);
|
|
} else {
|
|
base.push(toPush);
|
|
}
|
|
}
|
|
|
|
return base;
|
|
}
|
|
|
|
function getAveragePosition(elements) {
|
|
if (!elements.length) {
|
|
return false;
|
|
}
|
|
|
|
var i, len;
|
|
var xPositions = [];
|
|
var yPositions = [];
|
|
|
|
for (i = 0, len = elements.length; i < len; ++i) {
|
|
var el = elements[i];
|
|
if (el && el.hasValue()){
|
|
var pos = el.tooltipPosition();
|
|
xPositions.push(pos.x);
|
|
yPositions.push(pos.y);
|
|
}
|
|
}
|
|
|
|
var x = 0,
|
|
y = 0;
|
|
for (i = 0; i < xPositions.length; ++i) {
|
|
if (xPositions[ i ]) {
|
|
x += xPositions[i];
|
|
y += yPositions[i];
|
|
}
|
|
}
|
|
|
|
return {
|
|
x: Math.round(x / xPositions.length),
|
|
y: Math.round(y / xPositions.length)
|
|
};
|
|
}
|
|
|
|
// Private helper to create a tooltip iteam model
|
|
// @param element : the chart element (point, arc, bar) to create the tooltip item for
|
|
// @return : new tooltip item
|
|
function createTooltipItem(element) {
|
|
var xScale = element._xScale;
|
|
var yScale = element._yScale || element._scale; // handle radar || polarArea charts
|
|
var index = element._index,
|
|
datasetIndex = element._datasetIndex;
|
|
|
|
return {
|
|
xLabel: xScale ? xScale.getLabelForIndex(index, datasetIndex) : '',
|
|
yLabel: yScale ? yScale.getLabelForIndex(index, datasetIndex) : '',
|
|
index: index,
|
|
datasetIndex: datasetIndex
|
|
};
|
|
}
|
|
|
|
Chart.Tooltip = Chart.Element.extend({
|
|
initialize: function() {
|
|
var me = this;
|
|
var globalDefaults = Chart.defaults.global;
|
|
var tooltipOpts = me._options;
|
|
var getValueOrDefault = helpers.getValueOrDefault;
|
|
|
|
helpers.extend(me, {
|
|
_model: {
|
|
// Positioning
|
|
xPadding: tooltipOpts.xPadding,
|
|
yPadding: tooltipOpts.yPadding,
|
|
xAlign : tooltipOpts.xAlign,
|
|
yAlign : tooltipOpts.yAlign,
|
|
|
|
// Body
|
|
bodyFontColor: tooltipOpts.bodyFontColor,
|
|
_bodyFontFamily: getValueOrDefault(tooltipOpts.bodyFontFamily, globalDefaults.defaultFontFamily),
|
|
_bodyFontStyle: getValueOrDefault(tooltipOpts.bodyFontStyle, globalDefaults.defaultFontStyle),
|
|
_bodyAlign: tooltipOpts.bodyAlign,
|
|
bodyFontSize: getValueOrDefault(tooltipOpts.bodyFontSize, globalDefaults.defaultFontSize),
|
|
bodySpacing: tooltipOpts.bodySpacing,
|
|
|
|
// Title
|
|
titleFontColor: tooltipOpts.titleFontColor,
|
|
_titleFontFamily: getValueOrDefault(tooltipOpts.titleFontFamily, globalDefaults.defaultFontFamily),
|
|
_titleFontStyle: getValueOrDefault(tooltipOpts.titleFontStyle, globalDefaults.defaultFontStyle),
|
|
titleFontSize: getValueOrDefault(tooltipOpts.titleFontSize, globalDefaults.defaultFontSize),
|
|
_titleAlign: tooltipOpts.titleAlign,
|
|
titleSpacing: tooltipOpts.titleSpacing,
|
|
titleMarginBottom: tooltipOpts.titleMarginBottom,
|
|
|
|
// Footer
|
|
footerFontColor: tooltipOpts.footerFontColor,
|
|
_footerFontFamily: getValueOrDefault(tooltipOpts.footerFontFamily, globalDefaults.defaultFontFamily),
|
|
_footerFontStyle: getValueOrDefault(tooltipOpts.footerFontStyle, globalDefaults.defaultFontStyle),
|
|
footerFontSize: getValueOrDefault(tooltipOpts.footerFontSize, globalDefaults.defaultFontSize),
|
|
_footerAlign: tooltipOpts.footerAlign,
|
|
footerSpacing: tooltipOpts.footerSpacing,
|
|
footerMarginTop: tooltipOpts.footerMarginTop,
|
|
|
|
// Appearance
|
|
caretSize: tooltipOpts.caretSize,
|
|
cornerRadius: tooltipOpts.cornerRadius,
|
|
backgroundColor: tooltipOpts.backgroundColor,
|
|
opacity: 0,
|
|
legendColorBackground: tooltipOpts.multiKeyBackground
|
|
}
|
|
});
|
|
},
|
|
|
|
// Get the title
|
|
// Args are: (tooltipItem, data)
|
|
getTitle: function() {
|
|
var me = this;
|
|
var opts = me._options;
|
|
var callbacks = opts.callbacks;
|
|
|
|
var beforeTitle = callbacks.beforeTitle.apply(me, arguments),
|
|
title = callbacks.title.apply(me, arguments),
|
|
afterTitle = callbacks.afterTitle.apply(me, arguments);
|
|
|
|
var lines = [];
|
|
lines = pushOrConcat(lines, beforeTitle);
|
|
lines = pushOrConcat(lines, title);
|
|
lines = pushOrConcat(lines, afterTitle);
|
|
|
|
return lines;
|
|
},
|
|
|
|
// Args are: (tooltipItem, data)
|
|
getBeforeBody: function() {
|
|
var lines = this._options.callbacks.beforeBody.apply(this, arguments);
|
|
return helpers.isArray(lines) ? lines : lines !== undefined ? [lines] : [];
|
|
},
|
|
|
|
// Args are: (tooltipItem, data)
|
|
getBody: function(tooltipItems, data) {
|
|
var me = this;
|
|
var callbacks = me._options.callbacks;
|
|
var bodyItems = [];
|
|
|
|
helpers.each(tooltipItems, function(tooltipItem) {
|
|
var bodyItem = {
|
|
before: [],
|
|
lines: [],
|
|
after: []
|
|
};
|
|
pushOrConcat(bodyItem.before, callbacks.beforeLabel.call(me, tooltipItem, data));
|
|
pushOrConcat(bodyItem.lines, callbacks.label.call(me, tooltipItem, data));
|
|
pushOrConcat(bodyItem.after, callbacks.afterLabel.call(me, tooltipItem, data));
|
|
|
|
bodyItems.push(bodyItem);
|
|
});
|
|
|
|
return bodyItems;
|
|
},
|
|
|
|
// Args are: (tooltipItem, data)
|
|
getAfterBody: function() {
|
|
var lines = this._options.callbacks.afterBody.apply(this, arguments);
|
|
return helpers.isArray(lines) ? lines : lines !== undefined ? [lines] : [];
|
|
},
|
|
|
|
// Get the footer and beforeFooter and afterFooter lines
|
|
// Args are: (tooltipItem, data)
|
|
getFooter: function() {
|
|
var me = this;
|
|
var callbacks = me._options.callbacks;
|
|
|
|
var beforeFooter = callbacks.beforeFooter.apply(me, arguments);
|
|
var footer = callbacks.footer.apply(me, arguments);
|
|
var afterFooter = callbacks.afterFooter.apply(me, arguments);
|
|
|
|
var lines = [];
|
|
lines = pushOrConcat(lines, beforeFooter);
|
|
lines = pushOrConcat(lines, footer);
|
|
lines = pushOrConcat(lines, afterFooter);
|
|
|
|
return lines;
|
|
},
|
|
|
|
update: function(changed) {
|
|
var me = this;
|
|
var opts = me._options;
|
|
var model = me._model;
|
|
var active = me._active;
|
|
|
|
var data = me._data;
|
|
var chartInstance = me._chartInstance;
|
|
|
|
var i, len;
|
|
|
|
if (active.length) {
|
|
model.opacity = 1;
|
|
|
|
var labelColors = [],
|
|
tooltipPosition = getAveragePosition(active);
|
|
|
|
var tooltipItems = [];
|
|
for (i = 0, len = active.length; i < len; ++i) {
|
|
tooltipItems.push(createTooltipItem(active[i]));
|
|
}
|
|
|
|
// If the user provided a sorting function, use it to modify the tooltip items
|
|
if (opts.itemSort) {
|
|
tooltipItems = tooltipItems.sort(function(a,b) {
|
|
return opts.itemSort(a,b, data);
|
|
});
|
|
}
|
|
|
|
// If there is more than one item, show color items
|
|
if (active.length > 1) {
|
|
helpers.each(tooltipItems, function(tooltipItem) {
|
|
labelColors.push(opts.callbacks.labelColor.call(me, tooltipItem, chartInstance));
|
|
});
|
|
}
|
|
|
|
// Build the Text Lines
|
|
helpers.extend(model, {
|
|
title: me.getTitle(tooltipItems, data),
|
|
beforeBody: me.getBeforeBody(tooltipItems, data),
|
|
body: me.getBody(tooltipItems, data),
|
|
afterBody: me.getAfterBody(tooltipItems, data),
|
|
footer: me.getFooter(tooltipItems, data),
|
|
x: Math.round(tooltipPosition.x),
|
|
y: Math.round(tooltipPosition.y),
|
|
caretPadding: helpers.getValueOrDefault(tooltipPosition.padding, 2),
|
|
labelColors: labelColors
|
|
});
|
|
|
|
// We need to determine alignment of
|
|
var tooltipSize = me.getTooltipSize(model);
|
|
me.determineAlignment(tooltipSize); // Smart Tooltip placement to stay on the canvas
|
|
|
|
helpers.extend(model, me.getBackgroundPoint(model, tooltipSize));
|
|
} else {
|
|
me._model.opacity = 0;
|
|
}
|
|
|
|
if (changed && opts.custom) {
|
|
opts.custom.call(me, model);
|
|
}
|
|
|
|
return me;
|
|
},
|
|
getTooltipSize: function(vm) {
|
|
var ctx = this._chart.ctx;
|
|
|
|
var size = {
|
|
height: vm.yPadding * 2, // Tooltip Padding
|
|
width: 0
|
|
};
|
|
|
|
// Count of all lines in the body
|
|
var body = vm.body;
|
|
var combinedBodyLength = body.reduce(function(count, bodyItem) {
|
|
return count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length;
|
|
}, 0);
|
|
combinedBodyLength += vm.beforeBody.length + vm.afterBody.length;
|
|
|
|
var titleLineCount = vm.title.length;
|
|
var footerLineCount = vm.footer.length;
|
|
var titleFontSize = vm.titleFontSize,
|
|
bodyFontSize = vm.bodyFontSize,
|
|
footerFontSize = vm.footerFontSize;
|
|
|
|
size.height += titleLineCount * titleFontSize; // Title Lines
|
|
size.height += (titleLineCount - 1) * vm.titleSpacing; // Title Line Spacing
|
|
size.height += titleLineCount ? vm.titleMarginBottom : 0; // Title's bottom Margin
|
|
size.height += combinedBodyLength * bodyFontSize; // Body Lines
|
|
size.height += combinedBodyLength ? (combinedBodyLength - 1) * vm.bodySpacing : 0; // Body Line Spacing
|
|
size.height += footerLineCount ? vm.footerMarginTop : 0; // Footer Margin
|
|
size.height += footerLineCount * (footerFontSize); // Footer Lines
|
|
size.height += footerLineCount ? (footerLineCount - 1) * vm.footerSpacing : 0; // Footer Line Spacing
|
|
|
|
// Title width
|
|
var widthPadding = 0;
|
|
var maxLineWidth = function(line) {
|
|
size.width = Math.max(size.width, ctx.measureText(line).width + widthPadding);
|
|
};
|
|
|
|
ctx.font = helpers.fontString(titleFontSize, vm._titleFontStyle, vm._titleFontFamily);
|
|
helpers.each(vm.title, maxLineWidth);
|
|
|
|
// Body width
|
|
ctx.font = helpers.fontString(bodyFontSize, vm._bodyFontStyle, vm._bodyFontFamily);
|
|
helpers.each(vm.beforeBody.concat(vm.afterBody), maxLineWidth);
|
|
|
|
// Body lines may include some extra width due to the color box
|
|
widthPadding = body.length > 1 ? (bodyFontSize + 2) : 0;
|
|
helpers.each(body, function(bodyItem) {
|
|
helpers.each(bodyItem.before, maxLineWidth);
|
|
helpers.each(bodyItem.lines, maxLineWidth);
|
|
helpers.each(bodyItem.after, maxLineWidth);
|
|
});
|
|
|
|
// Reset back to 0
|
|
widthPadding = 0;
|
|
|
|
// Footer width
|
|
ctx.font = helpers.fontString(footerFontSize, vm._footerFontStyle, vm._footerFontFamily);
|
|
helpers.each(vm.footer, maxLineWidth);
|
|
|
|
// Add padding
|
|
size.width += 2 * vm.xPadding;
|
|
|
|
return size;
|
|
},
|
|
determineAlignment: function(size) {
|
|
var me = this;
|
|
var model = me._model;
|
|
var chart = me._chart;
|
|
var chartArea = me._chartInstance.chartArea;
|
|
|
|
if (model.y < size.height) {
|
|
model.yAlign = 'top';
|
|
} else if (model.y > (chart.height - size.height)) {
|
|
model.yAlign = 'bottom';
|
|
}
|
|
|
|
var lf, rf; // functions to determine left, right alignment
|
|
var olf, orf; // functions to determine if left/right alignment causes tooltip to go outside chart
|
|
var yf; // function to get the y alignment if the tooltip goes outside of the left or right edges
|
|
var midX = (chartArea.left + chartArea.right) / 2;
|
|
var midY = (chartArea.top + chartArea.bottom) / 2;
|
|
|
|
if (model.yAlign === 'center') {
|
|
lf = function(x) {
|
|
return x <= midX;
|
|
};
|
|
rf = function(x) {
|
|
return x > midX;
|
|
};
|
|
} else {
|
|
lf = function(x) {
|
|
return x <= (size.width / 2);
|
|
};
|
|
rf = function(x) {
|
|
return x >= (chart.width - (size.width / 2));
|
|
};
|
|
}
|
|
|
|
olf = function(x) {
|
|
return x + size.width > chart.width;
|
|
};
|
|
orf = function(x) {
|
|
return x - size.width < 0;
|
|
};
|
|
yf = function(y) {
|
|
return y <= midY ? 'top' : 'bottom';
|
|
};
|
|
|
|
if (lf(model.x)) {
|
|
model.xAlign = 'left';
|
|
|
|
// Is tooltip too wide and goes over the right side of the chart.?
|
|
if (olf(model.x)) {
|
|
model.xAlign = 'center';
|
|
model.yAlign = yf(model.y);
|
|
}
|
|
} else if (rf(model.x)) {
|
|
model.xAlign = 'right';
|
|
|
|
// Is tooltip too wide and goes outside left edge of canvas?
|
|
if (orf(model.x)) {
|
|
model.xAlign = 'center';
|
|
model.yAlign = yf(model.y);
|
|
}
|
|
}
|
|
},
|
|
getBackgroundPoint: function(vm, size) {
|
|
// Background Position
|
|
var pt = {
|
|
x: vm.x,
|
|
y: vm.y
|
|
};
|
|
|
|
var caretSize = vm.caretSize,
|
|
caretPadding = vm.caretPadding,
|
|
cornerRadius = vm.cornerRadius,
|
|
xAlign = vm.xAlign,
|
|
yAlign = vm.yAlign,
|
|
paddingAndSize = caretSize + caretPadding,
|
|
radiusAndPadding = cornerRadius + caretPadding;
|
|
|
|
if (xAlign === 'right') {
|
|
pt.x -= size.width;
|
|
} else if (xAlign === 'center') {
|
|
pt.x -= (size.width / 2);
|
|
}
|
|
|
|
if (yAlign === 'top') {
|
|
pt.y += paddingAndSize;
|
|
} else if (yAlign === 'bottom') {
|
|
pt.y -= size.height + paddingAndSize;
|
|
} else {
|
|
pt.y -= (size.height / 2);
|
|
}
|
|
|
|
if (yAlign === 'center') {
|
|
if (xAlign === 'left') {
|
|
pt.x += paddingAndSize;
|
|
} else if (xAlign === 'right') {
|
|
pt.x -= paddingAndSize;
|
|
}
|
|
} else {
|
|
if (xAlign === 'left') {
|
|
pt.x -= radiusAndPadding;
|
|
} else if (xAlign === 'right') {
|
|
pt.x += radiusAndPadding;
|
|
}
|
|
}
|
|
|
|
return pt;
|
|
},
|
|
drawCaret: function(tooltipPoint, size, opacity) {
|
|
var vm = this._view;
|
|
var ctx = this._chart.ctx;
|
|
var x1, x2, x3;
|
|
var y1, y2, y3;
|
|
var caretSize = vm.caretSize;
|
|
var cornerRadius = vm.cornerRadius;
|
|
var xAlign = vm.xAlign,
|
|
yAlign = vm.yAlign;
|
|
var ptX = tooltipPoint.x,
|
|
ptY = tooltipPoint.y;
|
|
var width = size.width,
|
|
height = size.height;
|
|
|
|
if (yAlign === 'center') {
|
|
// Left or right side
|
|
if (xAlign === 'left') {
|
|
x1 = ptX;
|
|
x2 = x1 - caretSize;
|
|
x3 = x1;
|
|
} else {
|
|
x1 = ptX + width;
|
|
x2 = x1 + caretSize;
|
|
x3 = x1;
|
|
}
|
|
|
|
y2 = ptY + (height / 2);
|
|
y1 = y2 - caretSize;
|
|
y3 = y2 + caretSize;
|
|
} else {
|
|
if (xAlign === 'left') {
|
|
x1 = ptX + cornerRadius;
|
|
x2 = x1 + caretSize;
|
|
x3 = x2 + caretSize;
|
|
} else if (xAlign === 'right') {
|
|
x1 = ptX + width - cornerRadius;
|
|
x2 = x1 - caretSize;
|
|
x3 = x2 - caretSize;
|
|
} else {
|
|
x2 = ptX + (width / 2);
|
|
x1 = x2 - caretSize;
|
|
x3 = x2 + caretSize;
|
|
}
|
|
|
|
if (yAlign === 'top') {
|
|
y1 = ptY;
|
|
y2 = y1 - caretSize;
|
|
y3 = y1;
|
|
} else {
|
|
y1 = ptY + height;
|
|
y2 = y1 + caretSize;
|
|
y3 = y1;
|
|
}
|
|
}
|
|
|
|
var bgColor = helpers.color(vm.backgroundColor);
|
|
ctx.fillStyle = bgColor.alpha(opacity * bgColor.alpha()).rgbString();
|
|
ctx.beginPath();
|
|
ctx.moveTo(x1, y1);
|
|
ctx.lineTo(x2, y2);
|
|
ctx.lineTo(x3, y3);
|
|
ctx.closePath();
|
|
ctx.fill();
|
|
},
|
|
drawTitle: function(pt, vm, ctx, opacity) {
|
|
var title = vm.title;
|
|
|
|
if (title.length) {
|
|
ctx.textAlign = vm._titleAlign;
|
|
ctx.textBaseline = "top";
|
|
|
|
var titleFontSize = vm.titleFontSize,
|
|
titleSpacing = vm.titleSpacing;
|
|
|
|
var titleFontColor = helpers.color(vm.titleFontColor);
|
|
ctx.fillStyle = titleFontColor.alpha(opacity * titleFontColor.alpha()).rgbString();
|
|
ctx.font = helpers.fontString(titleFontSize, vm._titleFontStyle, vm._titleFontFamily);
|
|
|
|
var i, len;
|
|
for (i = 0, len = title.length; i < len; ++i) {
|
|
ctx.fillText(title[i], pt.x, pt.y);
|
|
pt.y += titleFontSize + titleSpacing; // Line Height and spacing
|
|
|
|
if (i + 1 === title.length) {
|
|
pt.y += vm.titleMarginBottom - titleSpacing; // If Last, add margin, remove spacing
|
|
}
|
|
}
|
|
}
|
|
},
|
|
drawBody: function(pt, vm, ctx, opacity) {
|
|
var bodyFontSize = vm.bodyFontSize;
|
|
var bodySpacing = vm.bodySpacing;
|
|
var body = vm.body;
|
|
|
|
ctx.textAlign = vm._bodyAlign;
|
|
ctx.textBaseline = "top";
|
|
|
|
var bodyFontColor = helpers.color(vm.bodyFontColor);
|
|
var textColor = bodyFontColor.alpha(opacity * bodyFontColor.alpha()).rgbString();
|
|
ctx.fillStyle = textColor;
|
|
ctx.font = helpers.fontString(bodyFontSize, vm._bodyFontStyle, vm._bodyFontFamily);
|
|
|
|
// Before Body
|
|
var xLinePadding = 0;
|
|
var fillLineOfText = function(line) {
|
|
ctx.fillText(line, pt.x + xLinePadding, pt.y);
|
|
pt.y += bodyFontSize + bodySpacing;
|
|
};
|
|
|
|
// Before body lines
|
|
helpers.each(vm.beforeBody, fillLineOfText);
|
|
|
|
var drawColorBoxes = body.length > 1;
|
|
xLinePadding = drawColorBoxes ? (bodyFontSize + 2) : 0;
|
|
|
|
// Draw body lines now
|
|
helpers.each(body, function(bodyItem, i) {
|
|
helpers.each(bodyItem.before, fillLineOfText);
|
|
|
|
helpers.each(bodyItem.lines, function(line) {
|
|
// Draw Legend-like boxes if needed
|
|
if (drawColorBoxes) {
|
|
// Fill a white rect so that colours merge nicely if the opacity is < 1
|
|
ctx.fillStyle = helpers.color(vm.legendColorBackground).alpha(opacity).rgbaString();
|
|
ctx.fillRect(pt.x, pt.y, bodyFontSize, bodyFontSize);
|
|
|
|
// Border
|
|
ctx.strokeStyle = helpers.color(vm.labelColors[i].borderColor).alpha(opacity).rgbaString();
|
|
ctx.strokeRect(pt.x, pt.y, bodyFontSize, bodyFontSize);
|
|
|
|
// Inner square
|
|
ctx.fillStyle = helpers.color(vm.labelColors[i].backgroundColor).alpha(opacity).rgbaString();
|
|
ctx.fillRect(pt.x + 1, pt.y + 1, bodyFontSize - 2, bodyFontSize - 2);
|
|
|
|
ctx.fillStyle = textColor;
|
|
}
|
|
|
|
fillLineOfText(line);
|
|
});
|
|
|
|
helpers.each(bodyItem.after, fillLineOfText);
|
|
});
|
|
|
|
// Reset back to 0 for after body
|
|
xLinePadding = 0;
|
|
|
|
// After body lines
|
|
helpers.each(vm.afterBody, fillLineOfText);
|
|
pt.y -= bodySpacing; // Remove last body spacing
|
|
},
|
|
drawFooter: function(pt, vm, ctx, opacity) {
|
|
var footer = vm.footer;
|
|
|
|
if (footer.length) {
|
|
pt.y += vm.footerMarginTop;
|
|
|
|
ctx.textAlign = vm._footerAlign;
|
|
ctx.textBaseline = "top";
|
|
|
|
var footerFontColor = helpers.color(vm.footerFontColor);
|
|
ctx.fillStyle = footerFontColor.alpha(opacity * footerFontColor.alpha()).rgbString();
|
|
ctx.font = helpers.fontString(vm.footerFontSize, vm._footerFontStyle, vm._footerFontFamily);
|
|
|
|
helpers.each(footer, function(line) {
|
|
ctx.fillText(line, pt.x, pt.y);
|
|
pt.y += vm.footerFontSize + vm.footerSpacing;
|
|
});
|
|
}
|
|
},
|
|
draw: function() {
|
|
var ctx = this._chart.ctx;
|
|
var vm = this._view;
|
|
|
|
if (vm.opacity === 0) {
|
|
return;
|
|
}
|
|
|
|
var tooltipSize = this.getTooltipSize(vm);
|
|
var pt = {
|
|
x: vm.x,
|
|
y: vm.y
|
|
};
|
|
|
|
// IE11/Edge does not like very small opacities, so snap to 0
|
|
var opacity = Math.abs(vm.opacity < 1e-3) ? 0 : vm.opacity;
|
|
|
|
if (this._options.enabled) {
|
|
// Draw Background
|
|
var bgColor = helpers.color(vm.backgroundColor);
|
|
ctx.fillStyle = bgColor.alpha(opacity * bgColor.alpha()).rgbString();
|
|
helpers.drawRoundedRectangle(ctx, pt.x, pt.y, tooltipSize.width, tooltipSize.height, vm.cornerRadius);
|
|
ctx.fill();
|
|
|
|
// Draw Caret
|
|
this.drawCaret(pt, tooltipSize, opacity);
|
|
|
|
// Draw Title, Body, and Footer
|
|
pt.x += vm.xPadding;
|
|
pt.y += vm.yPadding;
|
|
|
|
// Titles
|
|
this.drawTitle(pt, vm, ctx, opacity);
|
|
|
|
// Body
|
|
this.drawBody(pt, vm, ctx, opacity);
|
|
|
|
// Footer
|
|
this.drawFooter(pt, vm, ctx, opacity);
|
|
}
|
|
}
|
|
});
|
|
};
|
|
|
|
},{}],35:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers,
|
|
globalOpts = Chart.defaults.global;
|
|
|
|
globalOpts.elements.arc = {
|
|
backgroundColor: globalOpts.defaultColor,
|
|
borderColor: "#fff",
|
|
borderWidth: 2
|
|
};
|
|
|
|
Chart.elements.Arc = Chart.Element.extend({
|
|
inLabelRange: function(mouseX) {
|
|
var vm = this._view;
|
|
|
|
if (vm) {
|
|
return (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hoverRadius, 2));
|
|
} else {
|
|
return false;
|
|
}
|
|
},
|
|
inRange: function(chartX, chartY) {
|
|
var vm = this._view;
|
|
|
|
if (vm) {
|
|
var pointRelativePosition = helpers.getAngleFromPoint(vm, {
|
|
x: chartX,
|
|
y: chartY
|
|
}),
|
|
angle = pointRelativePosition.angle,
|
|
distance = pointRelativePosition.distance;
|
|
|
|
//Sanitise angle range
|
|
var startAngle = vm.startAngle;
|
|
var endAngle = vm.endAngle;
|
|
while (endAngle < startAngle) {
|
|
endAngle += 2.0 * Math.PI;
|
|
}
|
|
while (angle > endAngle) {
|
|
angle -= 2.0 * Math.PI;
|
|
}
|
|
while (angle < startAngle) {
|
|
angle += 2.0 * Math.PI;
|
|
}
|
|
|
|
//Check if within the range of the open/close angle
|
|
var betweenAngles = (angle >= startAngle && angle <= endAngle),
|
|
withinRadius = (distance >= vm.innerRadius && distance <= vm.outerRadius);
|
|
|
|
return (betweenAngles && withinRadius);
|
|
} else {
|
|
return false;
|
|
}
|
|
},
|
|
tooltipPosition: function() {
|
|
var vm = this._view;
|
|
|
|
var centreAngle = vm.startAngle + ((vm.endAngle - vm.startAngle) / 2),
|
|
rangeFromCentre = (vm.outerRadius - vm.innerRadius) / 2 + vm.innerRadius;
|
|
return {
|
|
x: vm.x + (Math.cos(centreAngle) * rangeFromCentre),
|
|
y: vm.y + (Math.sin(centreAngle) * rangeFromCentre)
|
|
};
|
|
},
|
|
draw: function() {
|
|
|
|
var ctx = this._chart.ctx,
|
|
vm = this._view,
|
|
sA = vm.startAngle,
|
|
eA = vm.endAngle;
|
|
|
|
ctx.beginPath();
|
|
|
|
ctx.arc(vm.x, vm.y, vm.outerRadius, sA, eA);
|
|
ctx.arc(vm.x, vm.y, vm.innerRadius, eA, sA, true);
|
|
|
|
ctx.closePath();
|
|
ctx.strokeStyle = vm.borderColor;
|
|
ctx.lineWidth = vm.borderWidth;
|
|
|
|
ctx.fillStyle = vm.backgroundColor;
|
|
|
|
ctx.fill();
|
|
ctx.lineJoin = 'bevel';
|
|
|
|
if (vm.borderWidth) {
|
|
ctx.stroke();
|
|
}
|
|
}
|
|
});
|
|
};
|
|
|
|
},{}],36:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
var globalDefaults = Chart.defaults.global;
|
|
|
|
Chart.defaults.global.elements.line = {
|
|
tension: 0.4,
|
|
backgroundColor: globalDefaults.defaultColor,
|
|
borderWidth: 3,
|
|
borderColor: globalDefaults.defaultColor,
|
|
borderCapStyle: 'butt',
|
|
borderDash: [],
|
|
borderDashOffset: 0.0,
|
|
borderJoinStyle: 'miter',
|
|
capBezierPoints: true,
|
|
fill: true // do we fill in the area between the line and its base axis
|
|
};
|
|
|
|
Chart.elements.Line = Chart.Element.extend({
|
|
draw: function() {
|
|
var me = this;
|
|
var vm = me._view;
|
|
var spanGaps = vm.spanGaps;
|
|
var scaleZero = vm.scaleZero;
|
|
var loop = me._loop;
|
|
|
|
var ctx = me._chart.ctx;
|
|
ctx.save();
|
|
|
|
// Helper function to draw a line to a point
|
|
function lineToPoint(previousPoint, point) {
|
|
var vm = point._view;
|
|
if (point._view.steppedLine === true) {
|
|
ctx.lineTo(point._view.x, previousPoint._view.y);
|
|
ctx.lineTo(point._view.x, point._view.y);
|
|
} else if (point._view.tension === 0) {
|
|
ctx.lineTo(vm.x, vm.y);
|
|
} else {
|
|
ctx.bezierCurveTo(
|
|
previousPoint._view.controlPointNextX,
|
|
previousPoint._view.controlPointNextY,
|
|
vm.controlPointPreviousX,
|
|
vm.controlPointPreviousY,
|
|
vm.x,
|
|
vm.y
|
|
);
|
|
}
|
|
}
|
|
|
|
var points = me._children.slice(); // clone array
|
|
var lastDrawnIndex = -1;
|
|
|
|
// If we are looping, adding the first point again
|
|
if (loop && points.length) {
|
|
points.push(points[0]);
|
|
}
|
|
|
|
var index, current, previous, currentVM;
|
|
|
|
// Fill Line
|
|
if (points.length && vm.fill) {
|
|
ctx.beginPath();
|
|
|
|
for (index = 0; index < points.length; ++index) {
|
|
current = points[index];
|
|
previous = helpers.previousItem(points, index);
|
|
currentVM = current._view;
|
|
|
|
// First point moves to it's starting position no matter what
|
|
if (index === 0) {
|
|
if (loop) {
|
|
ctx.moveTo(scaleZero.x, scaleZero.y);
|
|
} else {
|
|
ctx.moveTo(currentVM.x, scaleZero);
|
|
}
|
|
|
|
if (!currentVM.skip) {
|
|
lastDrawnIndex = index;
|
|
ctx.lineTo(currentVM.x, currentVM.y);
|
|
}
|
|
} else {
|
|
previous = lastDrawnIndex === -1 ? previous : points[lastDrawnIndex];
|
|
|
|
if (currentVM.skip) {
|
|
// Only do this if this is the first point that is skipped
|
|
if (!spanGaps && lastDrawnIndex === (index - 1)) {
|
|
if (loop) {
|
|
ctx.lineTo(scaleZero.x, scaleZero.y);
|
|
} else {
|
|
ctx.lineTo(previous._view.x, scaleZero);
|
|
}
|
|
}
|
|
} else {
|
|
if (lastDrawnIndex !== (index - 1)) {
|
|
// There was a gap and this is the first point after the gap. If we've never drawn a point, this is a special case.
|
|
// If the first data point is NaN, then there is no real gap to skip
|
|
if (spanGaps && lastDrawnIndex !== -1) {
|
|
// We are spanning the gap, so simple draw a line to this point
|
|
lineToPoint(previous, current);
|
|
} else {
|
|
if (loop) {
|
|
ctx.lineTo(currentVM.x, currentVM.y);
|
|
} else {
|
|
ctx.lineTo(currentVM.x, scaleZero);
|
|
ctx.lineTo(currentVM.x, currentVM.y);
|
|
}
|
|
}
|
|
} else {
|
|
// Line to next point
|
|
lineToPoint(previous, current);
|
|
}
|
|
lastDrawnIndex = index;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!loop && lastDrawnIndex !== -1) {
|
|
ctx.lineTo(points[lastDrawnIndex]._view.x, scaleZero);
|
|
}
|
|
|
|
ctx.fillStyle = vm.backgroundColor || globalDefaults.defaultColor;
|
|
ctx.closePath();
|
|
ctx.fill();
|
|
}
|
|
|
|
// Stroke Line Options
|
|
var globalOptionLineElements = globalDefaults.elements.line;
|
|
ctx.lineCap = vm.borderCapStyle || globalOptionLineElements.borderCapStyle;
|
|
|
|
// IE 9 and 10 do not support line dash
|
|
if (ctx.setLineDash) {
|
|
ctx.setLineDash(vm.borderDash || globalOptionLineElements.borderDash);
|
|
}
|
|
|
|
ctx.lineDashOffset = vm.borderDashOffset || globalOptionLineElements.borderDashOffset;
|
|
ctx.lineJoin = vm.borderJoinStyle || globalOptionLineElements.borderJoinStyle;
|
|
ctx.lineWidth = vm.borderWidth || globalOptionLineElements.borderWidth;
|
|
ctx.strokeStyle = vm.borderColor || globalDefaults.defaultColor;
|
|
|
|
// Stroke Line
|
|
ctx.beginPath();
|
|
lastDrawnIndex = -1;
|
|
|
|
for (index = 0; index < points.length; ++index) {
|
|
current = points[index];
|
|
previous = helpers.previousItem(points, index);
|
|
currentVM = current._view;
|
|
|
|
// First point moves to it's starting position no matter what
|
|
if (index === 0) {
|
|
if (!currentVM.skip) {
|
|
ctx.moveTo(currentVM.x, currentVM.y);
|
|
lastDrawnIndex = index;
|
|
}
|
|
} else {
|
|
previous = lastDrawnIndex === -1 ? previous : points[lastDrawnIndex];
|
|
|
|
if (!currentVM.skip) {
|
|
if ((lastDrawnIndex !== (index - 1) && !spanGaps) || lastDrawnIndex === -1) {
|
|
// There was a gap and this is the first point after the gap
|
|
ctx.moveTo(currentVM.x, currentVM.y);
|
|
} else {
|
|
// Line to next point
|
|
lineToPoint(previous, current);
|
|
}
|
|
lastDrawnIndex = index;
|
|
}
|
|
}
|
|
}
|
|
|
|
ctx.stroke();
|
|
ctx.restore();
|
|
}
|
|
});
|
|
};
|
|
},{}],37:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers,
|
|
globalOpts = Chart.defaults.global,
|
|
defaultColor = globalOpts.defaultColor;
|
|
|
|
globalOpts.elements.point = {
|
|
radius: 3,
|
|
pointStyle: 'circle',
|
|
backgroundColor: defaultColor,
|
|
borderWidth: 1,
|
|
borderColor: defaultColor,
|
|
// Hover
|
|
hitRadius: 1,
|
|
hoverRadius: 4,
|
|
hoverBorderWidth: 1
|
|
};
|
|
|
|
Chart.elements.Point = Chart.Element.extend({
|
|
inRange: function(mouseX, mouseY) {
|
|
var vm = this._view;
|
|
return vm ? ((Math.pow(mouseX - vm.x, 2) + Math.pow(mouseY - vm.y, 2)) < Math.pow(vm.hitRadius + vm.radius, 2)) : false;
|
|
},
|
|
inLabelRange: function(mouseX) {
|
|
var vm = this._view;
|
|
return vm ? (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hitRadius, 2)) : false;
|
|
},
|
|
tooltipPosition: function() {
|
|
var vm = this._view;
|
|
return {
|
|
x: vm.x,
|
|
y: vm.y,
|
|
padding: vm.radius + vm.borderWidth
|
|
};
|
|
},
|
|
draw: function() {
|
|
var vm = this._view;
|
|
var ctx = this._chart.ctx;
|
|
var pointStyle = vm.pointStyle;
|
|
var radius = vm.radius;
|
|
var x = vm.x;
|
|
var y = vm.y;
|
|
|
|
if (vm.skip) {
|
|
return;
|
|
}
|
|
|
|
ctx.strokeStyle = vm.borderColor || defaultColor;
|
|
ctx.lineWidth = helpers.getValueOrDefault(vm.borderWidth, globalOpts.elements.point.borderWidth);
|
|
ctx.fillStyle = vm.backgroundColor || defaultColor;
|
|
|
|
Chart.canvasHelpers.drawPoint(ctx, pointStyle, radius, x, y);
|
|
}
|
|
});
|
|
};
|
|
|
|
},{}],38:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var globalOpts = Chart.defaults.global;
|
|
|
|
globalOpts.elements.rectangle = {
|
|
backgroundColor: globalOpts.defaultColor,
|
|
borderWidth: 0,
|
|
borderColor: globalOpts.defaultColor,
|
|
borderSkipped: 'bottom'
|
|
};
|
|
|
|
Chart.elements.Rectangle = Chart.Element.extend({
|
|
draw: function() {
|
|
var ctx = this._chart.ctx;
|
|
var vm = this._view;
|
|
|
|
var halfWidth = vm.width / 2,
|
|
leftX = vm.x - halfWidth,
|
|
rightX = vm.x + halfWidth,
|
|
top = vm.base - (vm.base - vm.y),
|
|
halfStroke = vm.borderWidth / 2;
|
|
|
|
// Canvas doesn't allow us to stroke inside the width so we can
|
|
// adjust the sizes to fit if we're setting a stroke on the line
|
|
if (vm.borderWidth) {
|
|
leftX += halfStroke;
|
|
rightX -= halfStroke;
|
|
top += halfStroke;
|
|
}
|
|
|
|
ctx.beginPath();
|
|
ctx.fillStyle = vm.backgroundColor;
|
|
ctx.strokeStyle = vm.borderColor;
|
|
ctx.lineWidth = vm.borderWidth;
|
|
|
|
// Corner points, from bottom-left to bottom-right clockwise
|
|
// | 1 2 |
|
|
// | 0 3 |
|
|
var corners = [
|
|
[leftX, vm.base],
|
|
[leftX, top],
|
|
[rightX, top],
|
|
[rightX, vm.base]
|
|
];
|
|
|
|
// Find first (starting) corner with fallback to 'bottom'
|
|
var borders = ['bottom', 'left', 'top', 'right'];
|
|
var startCorner = borders.indexOf(vm.borderSkipped, 0);
|
|
if (startCorner === -1)
|
|
startCorner = 0;
|
|
|
|
function cornerAt(index) {
|
|
return corners[(startCorner + index) % 4];
|
|
}
|
|
|
|
// Draw rectangle from 'startCorner'
|
|
ctx.moveTo.apply(ctx, cornerAt(0));
|
|
for (var i = 1; i < 4; i++)
|
|
ctx.lineTo.apply(ctx, cornerAt(i));
|
|
|
|
ctx.fill();
|
|
if (vm.borderWidth) {
|
|
ctx.stroke();
|
|
}
|
|
},
|
|
height: function() {
|
|
var vm = this._view;
|
|
return vm.base - vm.y;
|
|
},
|
|
inRange: function(mouseX, mouseY) {
|
|
var vm = this._view;
|
|
return vm ?
|
|
(vm.y < vm.base ?
|
|
(mouseX >= vm.x - vm.width / 2 && mouseX <= vm.x + vm.width / 2) && (mouseY >= vm.y && mouseY <= vm.base) :
|
|
(mouseX >= vm.x - vm.width / 2 && mouseX <= vm.x + vm.width / 2) && (mouseY >= vm.base && mouseY <= vm.y)) :
|
|
false;
|
|
},
|
|
inLabelRange: function(mouseX) {
|
|
var vm = this._view;
|
|
return vm ? (mouseX >= vm.x - vm.width / 2 && mouseX <= vm.x + vm.width / 2) : false;
|
|
},
|
|
tooltipPosition: function() {
|
|
var vm = this._view;
|
|
return {
|
|
x: vm.x,
|
|
y: vm.y
|
|
};
|
|
}
|
|
});
|
|
|
|
};
|
|
},{}],39:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
// Default config for a category scale
|
|
var defaultConfig = {
|
|
position: "bottom"
|
|
};
|
|
|
|
var DatasetScale = Chart.Scale.extend({
|
|
/**
|
|
* Internal function to get the correct labels. If data.xLabels or data.yLabels are defined, use tose
|
|
* else fall back to data.labels
|
|
* @private
|
|
*/
|
|
getLabels: function() {
|
|
var data = this.chart.data;
|
|
return (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels;
|
|
},
|
|
// Implement this so that
|
|
determineDataLimits: function() {
|
|
var me = this;
|
|
var labels = me.getLabels();
|
|
me.minIndex = 0;
|
|
me.maxIndex = labels.length - 1;
|
|
var findIndex;
|
|
|
|
if (me.options.ticks.min !== undefined) {
|
|
// user specified min value
|
|
findIndex = helpers.indexOf(labels, me.options.ticks.min);
|
|
me.minIndex = findIndex !== -1 ? findIndex : me.minIndex;
|
|
}
|
|
|
|
if (me.options.ticks.max !== undefined) {
|
|
// user specified max value
|
|
findIndex = helpers.indexOf(labels, me.options.ticks.max);
|
|
me.maxIndex = findIndex !== -1 ? findIndex : me.maxIndex;
|
|
}
|
|
|
|
me.min = labels[me.minIndex];
|
|
me.max = labels[me.maxIndex];
|
|
},
|
|
|
|
buildTicks: function() {
|
|
var me = this;
|
|
var labels = me.getLabels();
|
|
// If we are viewing some subset of labels, slice the original array
|
|
me.ticks = (me.minIndex === 0 && me.maxIndex === labels.length - 1) ? labels : labels.slice(me.minIndex, me.maxIndex + 1);
|
|
},
|
|
|
|
getLabelForIndex: function(index) {
|
|
return this.ticks[index];
|
|
},
|
|
|
|
// Used to get data value locations. Value can either be an index or a numerical value
|
|
getPixelForValue: function(value, index, datasetIndex, includeOffset) {
|
|
var me = this;
|
|
// 1 is added because we need the length but we have the indexes
|
|
var offsetAmt = Math.max((me.maxIndex + 1 - me.minIndex - ((me.options.gridLines.offsetGridLines) ? 0 : 1)), 1);
|
|
|
|
if (value !== undefined && isNaN(index)) {
|
|
var labels = me.getLabels();
|
|
var idx = labels.indexOf(value);
|
|
index = idx !== -1 ? idx : index;
|
|
}
|
|
|
|
if (me.isHorizontal()) {
|
|
var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
|
|
var valueWidth = innerWidth / offsetAmt;
|
|
var widthOffset = (valueWidth * (index - me.minIndex)) + me.paddingLeft;
|
|
|
|
if (me.options.gridLines.offsetGridLines && includeOffset || me.maxIndex === me.minIndex && includeOffset) {
|
|
widthOffset += (valueWidth / 2);
|
|
}
|
|
|
|
return me.left + Math.round(widthOffset);
|
|
} else {
|
|
var innerHeight = me.height - (me.paddingTop + me.paddingBottom);
|
|
var valueHeight = innerHeight / offsetAmt;
|
|
var heightOffset = (valueHeight * (index - me.minIndex)) + me.paddingTop;
|
|
|
|
if (me.options.gridLines.offsetGridLines && includeOffset) {
|
|
heightOffset += (valueHeight / 2);
|
|
}
|
|
|
|
return me.top + Math.round(heightOffset);
|
|
}
|
|
},
|
|
getPixelForTick: function(index, includeOffset) {
|
|
return this.getPixelForValue(this.ticks[index], index + this.minIndex, null, includeOffset);
|
|
},
|
|
getValueForPixel: function(pixel) {
|
|
var me = this;
|
|
var value;
|
|
var offsetAmt = Math.max((me.ticks.length - ((me.options.gridLines.offsetGridLines) ? 0 : 1)), 1);
|
|
var horz = me.isHorizontal();
|
|
var innerDimension = horz ? me.width - (me.paddingLeft + me.paddingRight) : me.height - (me.paddingTop + me.paddingBottom);
|
|
var valueDimension = innerDimension / offsetAmt;
|
|
|
|
pixel -= horz ? me.left : me.top;
|
|
|
|
if (me.options.gridLines.offsetGridLines) {
|
|
pixel -= (valueDimension / 2);
|
|
}
|
|
pixel -= horz ? me.paddingLeft : me.paddingTop;
|
|
|
|
if (pixel <= 0) {
|
|
value = 0;
|
|
} else {
|
|
value = Math.round(pixel / valueDimension);
|
|
}
|
|
|
|
return value;
|
|
},
|
|
getBasePixel: function() {
|
|
return this.bottom;
|
|
}
|
|
});
|
|
|
|
Chart.scaleService.registerScaleType("category", DatasetScale, defaultConfig);
|
|
|
|
};
|
|
},{}],40:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
|
|
var defaultConfig = {
|
|
position: "left",
|
|
ticks: {
|
|
callback: function(tickValue, index, ticks) {
|
|
// If we have lots of ticks, don't use the ones
|
|
var delta = ticks.length > 3 ? ticks[2] - ticks[1] : ticks[1] - ticks[0];
|
|
|
|
// If we have a number like 2.5 as the delta, figure out how many decimal places we need
|
|
if (Math.abs(delta) > 1) {
|
|
if (tickValue !== Math.floor(tickValue)) {
|
|
// not an integer
|
|
delta = tickValue - Math.floor(tickValue);
|
|
}
|
|
}
|
|
|
|
var logDelta = helpers.log10(Math.abs(delta));
|
|
var tickString = '';
|
|
|
|
if (tickValue !== 0) {
|
|
var numDecimal = -1 * Math.floor(logDelta);
|
|
numDecimal = Math.max(Math.min(numDecimal, 20), 0); // toFixed has a max of 20 decimal places
|
|
tickString = tickValue.toFixed(numDecimal);
|
|
} else {
|
|
tickString = '0'; // never show decimal places for 0
|
|
}
|
|
|
|
return tickString;
|
|
}
|
|
}
|
|
};
|
|
|
|
var LinearScale = Chart.LinearScaleBase.extend({
|
|
determineDataLimits: function() {
|
|
var me = this;
|
|
var opts = me.options;
|
|
var chart = me.chart;
|
|
var data = chart.data;
|
|
var datasets = data.datasets;
|
|
var isHorizontal = me.isHorizontal();
|
|
|
|
function IDMatches(meta) {
|
|
return isHorizontal ? meta.xAxisID === me.id : meta.yAxisID === me.id;
|
|
}
|
|
|
|
// First Calculate the range
|
|
me.min = null;
|
|
me.max = null;
|
|
|
|
if (opts.stacked) {
|
|
var valuesPerType = {};
|
|
var hasPositiveValues = false;
|
|
var hasNegativeValues = false;
|
|
|
|
helpers.each(datasets, function(dataset, datasetIndex) {
|
|
var meta = chart.getDatasetMeta(datasetIndex);
|
|
if (valuesPerType[meta.type] === undefined) {
|
|
valuesPerType[meta.type] = {
|
|
positiveValues: [],
|
|
negativeValues: []
|
|
};
|
|
}
|
|
|
|
// Store these per type
|
|
var positiveValues = valuesPerType[meta.type].positiveValues;
|
|
var negativeValues = valuesPerType[meta.type].negativeValues;
|
|
|
|
if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
|
|
helpers.each(dataset.data, function(rawValue, index) {
|
|
var value = +me.getRightValue(rawValue);
|
|
if (isNaN(value) || meta.data[index].hidden) {
|
|
return;
|
|
}
|
|
|
|
positiveValues[index] = positiveValues[index] || 0;
|
|
negativeValues[index] = negativeValues[index] || 0;
|
|
|
|
if (opts.relativePoints) {
|
|
positiveValues[index] = 100;
|
|
} else {
|
|
if (value < 0) {
|
|
hasNegativeValues = true;
|
|
negativeValues[index] += value;
|
|
} else {
|
|
hasPositiveValues = true;
|
|
positiveValues[index] += value;
|
|
}
|
|
}
|
|
});
|
|
}
|
|
});
|
|
|
|
helpers.each(valuesPerType, function(valuesForType) {
|
|
var values = valuesForType.positiveValues.concat(valuesForType.negativeValues);
|
|
var minVal = helpers.min(values);
|
|
var maxVal = helpers.max(values);
|
|
me.min = me.min === null ? minVal : Math.min(me.min, minVal);
|
|
me.max = me.max === null ? maxVal : Math.max(me.max, maxVal);
|
|
});
|
|
|
|
} else {
|
|
helpers.each(datasets, function(dataset, datasetIndex) {
|
|
var meta = chart.getDatasetMeta(datasetIndex);
|
|
if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
|
|
helpers.each(dataset.data, function(rawValue, index) {
|
|
var value = +me.getRightValue(rawValue);
|
|
if (isNaN(value) || meta.data[index].hidden) {
|
|
return;
|
|
}
|
|
|
|
if (me.min === null) {
|
|
me.min = value;
|
|
} else if (value < me.min) {
|
|
me.min = value;
|
|
}
|
|
|
|
if (me.max === null) {
|
|
me.max = value;
|
|
} else if (value > me.max) {
|
|
me.max = value;
|
|
}
|
|
});
|
|
}
|
|
});
|
|
}
|
|
|
|
// Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
|
|
this.handleTickRangeOptions();
|
|
},
|
|
getTickLimit: function() {
|
|
var maxTicks;
|
|
var me = this;
|
|
var tickOpts = me.options.ticks;
|
|
|
|
if (me.isHorizontal()) {
|
|
maxTicks = Math.min(tickOpts.maxTicksLimit ? tickOpts.maxTicksLimit : 11, Math.ceil(me.width / 50));
|
|
} else {
|
|
// The factor of 2 used to scale the font size has been experimentally determined.
|
|
var tickFontSize = helpers.getValueOrDefault(tickOpts.fontSize, Chart.defaults.global.defaultFontSize);
|
|
maxTicks = Math.min(tickOpts.maxTicksLimit ? tickOpts.maxTicksLimit : 11, Math.ceil(me.height / (2 * tickFontSize)));
|
|
}
|
|
|
|
return maxTicks;
|
|
},
|
|
// Called after the ticks are built. We need
|
|
handleDirectionalChanges: function() {
|
|
if (!this.isHorizontal()) {
|
|
// We are in a vertical orientation. The top value is the highest. So reverse the array
|
|
this.ticks.reverse();
|
|
}
|
|
},
|
|
getLabelForIndex: function(index, datasetIndex) {
|
|
return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
|
|
},
|
|
// Utils
|
|
getPixelForValue: function(value) {
|
|
// This must be called after fit has been run so that
|
|
// this.left, this.top, this.right, and this.bottom have been defined
|
|
var me = this;
|
|
var paddingLeft = me.paddingLeft;
|
|
var paddingBottom = me.paddingBottom;
|
|
var start = me.start;
|
|
|
|
var rightValue = +me.getRightValue(value);
|
|
var pixel;
|
|
var innerDimension;
|
|
var range = me.end - start;
|
|
|
|
if (me.isHorizontal()) {
|
|
innerDimension = me.width - (paddingLeft + me.paddingRight);
|
|
pixel = me.left + (innerDimension / range * (rightValue - start));
|
|
return Math.round(pixel + paddingLeft);
|
|
} else {
|
|
innerDimension = me.height - (me.paddingTop + paddingBottom);
|
|
pixel = (me.bottom - paddingBottom) - (innerDimension / range * (rightValue - start));
|
|
return Math.round(pixel);
|
|
}
|
|
},
|
|
getValueForPixel: function(pixel) {
|
|
var me = this;
|
|
var isHorizontal = me.isHorizontal();
|
|
var paddingLeft = me.paddingLeft;
|
|
var paddingBottom = me.paddingBottom;
|
|
var innerDimension = isHorizontal ? me.width - (paddingLeft + me.paddingRight) : me.height - (me.paddingTop + paddingBottom);
|
|
var offset = (isHorizontal ? pixel - me.left - paddingLeft : me.bottom - paddingBottom - pixel) / innerDimension;
|
|
return me.start + ((me.end - me.start) * offset);
|
|
},
|
|
getPixelForTick: function(index) {
|
|
return this.getPixelForValue(this.ticksAsNumbers[index]);
|
|
}
|
|
});
|
|
Chart.scaleService.registerScaleType("linear", LinearScale, defaultConfig);
|
|
|
|
};
|
|
},{}],41:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers,
|
|
noop = helpers.noop;
|
|
|
|
Chart.LinearScaleBase = Chart.Scale.extend({
|
|
handleTickRangeOptions: function() {
|
|
var me = this;
|
|
var opts = me.options;
|
|
var tickOpts = opts.ticks;
|
|
|
|
// If we are forcing it to begin at 0, but 0 will already be rendered on the chart,
|
|
// do nothing since that would make the chart weird. If the user really wants a weird chart
|
|
// axis, they can manually override it
|
|
if (tickOpts.beginAtZero) {
|
|
var minSign = helpers.sign(me.min);
|
|
var maxSign = helpers.sign(me.max);
|
|
|
|
if (minSign < 0 && maxSign < 0) {
|
|
// move the top up to 0
|
|
me.max = 0;
|
|
} else if (minSign > 0 && maxSign > 0) {
|
|
// move the botttom down to 0
|
|
me.min = 0;
|
|
}
|
|
}
|
|
|
|
if (tickOpts.min !== undefined) {
|
|
me.min = tickOpts.min;
|
|
} else if (tickOpts.suggestedMin !== undefined) {
|
|
me.min = Math.min(me.min, tickOpts.suggestedMin);
|
|
}
|
|
|
|
if (tickOpts.max !== undefined) {
|
|
me.max = tickOpts.max;
|
|
} else if (tickOpts.suggestedMax !== undefined) {
|
|
me.max = Math.max(me.max, tickOpts.suggestedMax);
|
|
}
|
|
|
|
if (me.min === me.max) {
|
|
me.max++;
|
|
|
|
if (!tickOpts.beginAtZero) {
|
|
me.min--;
|
|
}
|
|
}
|
|
},
|
|
getTickLimit: noop,
|
|
handleDirectionalChanges: noop,
|
|
|
|
buildTicks: function() {
|
|
var me = this;
|
|
var opts = me.options;
|
|
var ticks = me.ticks = [];
|
|
var tickOpts = opts.ticks;
|
|
var getValueOrDefault = helpers.getValueOrDefault;
|
|
|
|
// Figure out what the max number of ticks we can support it is based on the size of
|
|
// the axis area. For now, we say that the minimum tick spacing in pixels must be 50
|
|
// We also limit the maximum number of ticks to 11 which gives a nice 10 squares on
|
|
// the graph
|
|
|
|
var maxTicks = me.getTickLimit();
|
|
|
|
// Make sure we always have at least 2 ticks
|
|
maxTicks = Math.max(2, maxTicks);
|
|
|
|
// To get a "nice" value for the tick spacing, we will use the appropriately named
|
|
// "nice number" algorithm. See http://stackoverflow.com/questions/8506881/nice-label-algorithm-for-charts-with-minimum-ticks
|
|
// for details.
|
|
|
|
var spacing;
|
|
var fixedStepSizeSet = (tickOpts.fixedStepSize && tickOpts.fixedStepSize > 0) || (tickOpts.stepSize && tickOpts.stepSize > 0);
|
|
if (fixedStepSizeSet) {
|
|
spacing = getValueOrDefault(tickOpts.fixedStepSize, tickOpts.stepSize);
|
|
} else {
|
|
var niceRange = helpers.niceNum(me.max - me.min, false);
|
|
spacing = helpers.niceNum(niceRange / (maxTicks - 1), true);
|
|
}
|
|
var niceMin = Math.floor(me.min / spacing) * spacing;
|
|
var niceMax = Math.ceil(me.max / spacing) * spacing;
|
|
var numSpaces = (niceMax - niceMin) / spacing;
|
|
|
|
// If very close to our rounded value, use it.
|
|
if (helpers.almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) {
|
|
numSpaces = Math.round(numSpaces);
|
|
} else {
|
|
numSpaces = Math.ceil(numSpaces);
|
|
}
|
|
|
|
// Put the values into the ticks array
|
|
ticks.push(tickOpts.min !== undefined ? tickOpts.min : niceMin);
|
|
for (var j = 1; j < numSpaces; ++j) {
|
|
ticks.push(niceMin + (j * spacing));
|
|
}
|
|
ticks.push(tickOpts.max !== undefined ? tickOpts.max : niceMax);
|
|
|
|
me.handleDirectionalChanges();
|
|
|
|
// At this point, we need to update our max and min given the tick values since we have expanded the
|
|
// range of the scale
|
|
me.max = helpers.max(ticks);
|
|
me.min = helpers.min(ticks);
|
|
|
|
if (tickOpts.reverse) {
|
|
ticks.reverse();
|
|
|
|
me.start = me.max;
|
|
me.end = me.min;
|
|
} else {
|
|
me.start = me.min;
|
|
me.end = me.max;
|
|
}
|
|
},
|
|
convertTicksToLabels: function() {
|
|
var me = this;
|
|
me.ticksAsNumbers = me.ticks.slice();
|
|
me.zeroLineIndex = me.ticks.indexOf(0);
|
|
|
|
Chart.Scale.prototype.convertTicksToLabels.call(me);
|
|
}
|
|
});
|
|
};
|
|
},{}],42:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
|
|
var defaultConfig = {
|
|
position: "left",
|
|
|
|
// label settings
|
|
ticks: {
|
|
callback: function(value, index, arr) {
|
|
var remain = value / (Math.pow(10, Math.floor(helpers.log10(value))));
|
|
|
|
if (value === 0){
|
|
return '0';
|
|
} else if (remain === 1 || remain === 2 || remain === 5 || index === 0 || index === arr.length - 1) {
|
|
return value.toExponential();
|
|
} else {
|
|
return '';
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
var LogarithmicScale = Chart.Scale.extend({
|
|
determineDataLimits: function() {
|
|
var me = this;
|
|
var opts = me.options;
|
|
var tickOpts = opts.ticks;
|
|
var chart = me.chart;
|
|
var data = chart.data;
|
|
var datasets = data.datasets;
|
|
var getValueOrDefault = helpers.getValueOrDefault;
|
|
var isHorizontal = me.isHorizontal();
|
|
function IDMatches(meta) {
|
|
return isHorizontal ? meta.xAxisID === me.id : meta.yAxisID === me.id;
|
|
}
|
|
|
|
// Calculate Range
|
|
me.min = null;
|
|
me.max = null;
|
|
me.minNotZero = null;
|
|
|
|
if (opts.stacked) {
|
|
var valuesPerType = {};
|
|
|
|
helpers.each(datasets, function(dataset, datasetIndex) {
|
|
var meta = chart.getDatasetMeta(datasetIndex);
|
|
if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
|
|
if (valuesPerType[meta.type] === undefined) {
|
|
valuesPerType[meta.type] = [];
|
|
}
|
|
|
|
helpers.each(dataset.data, function(rawValue, index) {
|
|
var values = valuesPerType[meta.type];
|
|
var value = +me.getRightValue(rawValue);
|
|
if (isNaN(value) || meta.data[index].hidden) {
|
|
return;
|
|
}
|
|
|
|
values[index] = values[index] || 0;
|
|
|
|
if (opts.relativePoints) {
|
|
values[index] = 100;
|
|
} else {
|
|
// Don't need to split positive and negative since the log scale can't handle a 0 crossing
|
|
values[index] += value;
|
|
}
|
|
});
|
|
}
|
|
});
|
|
|
|
helpers.each(valuesPerType, function(valuesForType) {
|
|
var minVal = helpers.min(valuesForType);
|
|
var maxVal = helpers.max(valuesForType);
|
|
me.min = me.min === null ? minVal : Math.min(me.min, minVal);
|
|
me.max = me.max === null ? maxVal : Math.max(me.max, maxVal);
|
|
});
|
|
|
|
} else {
|
|
helpers.each(datasets, function(dataset, datasetIndex) {
|
|
var meta = chart.getDatasetMeta(datasetIndex);
|
|
if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
|
|
helpers.each(dataset.data, function(rawValue, index) {
|
|
var value = +me.getRightValue(rawValue);
|
|
if (isNaN(value) || meta.data[index].hidden) {
|
|
return;
|
|
}
|
|
|
|
if (me.min === null) {
|
|
me.min = value;
|
|
} else if (value < me.min) {
|
|
me.min = value;
|
|
}
|
|
|
|
if (me.max === null) {
|
|
me.max = value;
|
|
} else if (value > me.max) {
|
|
me.max = value;
|
|
}
|
|
|
|
if(value !== 0 && (me.minNotZero === null || value < me.minNotZero)) {
|
|
me.minNotZero = value;
|
|
}
|
|
});
|
|
}
|
|
});
|
|
}
|
|
|
|
me.min = getValueOrDefault(tickOpts.min, me.min);
|
|
me.max = getValueOrDefault(tickOpts.max, me.max);
|
|
|
|
if (me.min === me.max) {
|
|
if (me.min !== 0 && me.min !== null) {
|
|
me.min = Math.pow(10, Math.floor(helpers.log10(me.min)) - 1);
|
|
me.max = Math.pow(10, Math.floor(helpers.log10(me.max)) + 1);
|
|
} else {
|
|
me.min = 1;
|
|
me.max = 10;
|
|
}
|
|
}
|
|
},
|
|
buildTicks: function() {
|
|
var me = this;
|
|
var opts = me.options;
|
|
var tickOpts = opts.ticks;
|
|
var getValueOrDefault = helpers.getValueOrDefault;
|
|
|
|
// Reset the ticks array. Later on, we will draw a grid line at these positions
|
|
// The array simply contains the numerical value of the spots where ticks will be
|
|
var ticks = me.ticks = [];
|
|
|
|
// Figure out what the max number of ticks we can support it is based on the size of
|
|
// the axis area. For now, we say that the minimum tick spacing in pixels must be 50
|
|
// We also limit the maximum number of ticks to 11 which gives a nice 10 squares on
|
|
// the graph
|
|
|
|
var tickVal = getValueOrDefault(tickOpts.min, Math.pow(10, Math.floor(helpers.log10(me.min))));
|
|
|
|
while (tickVal < me.max) {
|
|
ticks.push(tickVal);
|
|
|
|
var exp;
|
|
var significand;
|
|
|
|
if(tickVal === 0){
|
|
exp = Math.floor(helpers.log10(me.minNotZero));
|
|
significand = Math.round(me.minNotZero / Math.pow(10, exp));
|
|
} else {
|
|
exp = Math.floor(helpers.log10(tickVal));
|
|
significand = Math.floor(tickVal / Math.pow(10, exp)) + 1;
|
|
}
|
|
|
|
if (significand === 10) {
|
|
significand = 1;
|
|
++exp;
|
|
}
|
|
|
|
tickVal = significand * Math.pow(10, exp);
|
|
}
|
|
|
|
var lastTick = getValueOrDefault(tickOpts.max, tickVal);
|
|
ticks.push(lastTick);
|
|
|
|
if (!me.isHorizontal()) {
|
|
// We are in a vertical orientation. The top value is the highest. So reverse the array
|
|
ticks.reverse();
|
|
}
|
|
|
|
// At this point, we need to update our max and min given the tick values since we have expanded the
|
|
// range of the scale
|
|
me.max = helpers.max(ticks);
|
|
me.min = helpers.min(ticks);
|
|
|
|
if (tickOpts.reverse) {
|
|
ticks.reverse();
|
|
|
|
me.start = me.max;
|
|
me.end = me.min;
|
|
} else {
|
|
me.start = me.min;
|
|
me.end = me.max;
|
|
}
|
|
},
|
|
convertTicksToLabels: function() {
|
|
this.tickValues = this.ticks.slice();
|
|
|
|
Chart.Scale.prototype.convertTicksToLabels.call(this);
|
|
},
|
|
// Get the correct tooltip label
|
|
getLabelForIndex: function(index, datasetIndex) {
|
|
return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
|
|
},
|
|
getPixelForTick: function(index) {
|
|
return this.getPixelForValue(this.tickValues[index]);
|
|
},
|
|
getPixelForValue: function(value) {
|
|
var me = this;
|
|
var innerDimension;
|
|
var pixel;
|
|
|
|
var start = me.start;
|
|
var newVal = +me.getRightValue(value);
|
|
var range;
|
|
var paddingTop = me.paddingTop;
|
|
var paddingBottom = me.paddingBottom;
|
|
var paddingLeft = me.paddingLeft;
|
|
var opts = me.options;
|
|
var tickOpts = opts.ticks;
|
|
|
|
if (me.isHorizontal()) {
|
|
range = helpers.log10(me.end) - helpers.log10(start); // todo: if start === 0
|
|
if (newVal === 0) {
|
|
pixel = me.left + paddingLeft;
|
|
} else {
|
|
innerDimension = me.width - (paddingLeft + me.paddingRight);
|
|
pixel = me.left + (innerDimension / range * (helpers.log10(newVal) - helpers.log10(start)));
|
|
pixel += paddingLeft;
|
|
}
|
|
} else {
|
|
// Bottom - top since pixels increase downard on a screen
|
|
innerDimension = me.height - (paddingTop + paddingBottom);
|
|
if(start === 0 && !tickOpts.reverse){
|
|
range = helpers.log10(me.end) - helpers.log10(me.minNotZero);
|
|
if (newVal === start) {
|
|
pixel = me.bottom - paddingBottom;
|
|
} else if(newVal === me.minNotZero){
|
|
pixel = me.bottom - paddingBottom - innerDimension * 0.02;
|
|
} else {
|
|
pixel = me.bottom - paddingBottom - innerDimension * 0.02 - (innerDimension * 0.98/ range * (helpers.log10(newVal)-helpers.log10(me.minNotZero)));
|
|
}
|
|
} else if (me.end === 0 && tickOpts.reverse){
|
|
range = helpers.log10(me.start) - helpers.log10(me.minNotZero);
|
|
if (newVal === me.end) {
|
|
pixel = me.top + paddingTop;
|
|
} else if(newVal === me.minNotZero){
|
|
pixel = me.top + paddingTop + innerDimension * 0.02;
|
|
} else {
|
|
pixel = me.top + paddingTop + innerDimension * 0.02 + (innerDimension * 0.98/ range * (helpers.log10(newVal)-helpers.log10(me.minNotZero)));
|
|
}
|
|
} else {
|
|
range = helpers.log10(me.end) - helpers.log10(start);
|
|
innerDimension = me.height - (paddingTop + paddingBottom);
|
|
pixel = (me.bottom - paddingBottom) - (innerDimension / range * (helpers.log10(newVal) - helpers.log10(start)));
|
|
}
|
|
}
|
|
return pixel;
|
|
},
|
|
getValueForPixel: function(pixel) {
|
|
var me = this;
|
|
var range = helpers.log10(me.end) - helpers.log10(me.start);
|
|
var value, innerDimension;
|
|
|
|
if (me.isHorizontal()) {
|
|
innerDimension = me.width - (me.paddingLeft + me.paddingRight);
|
|
value = me.start * Math.pow(10, (pixel - me.left - me.paddingLeft) * range / innerDimension);
|
|
} else { // todo: if start === 0
|
|
innerDimension = me.height - (me.paddingTop + me.paddingBottom);
|
|
value = Math.pow(10, (me.bottom - me.paddingBottom - pixel) * range / innerDimension) / me.start;
|
|
}
|
|
return value;
|
|
}
|
|
});
|
|
Chart.scaleService.registerScaleType("logarithmic", LogarithmicScale, defaultConfig);
|
|
|
|
};
|
|
},{}],43:[function(require,module,exports){
|
|
"use strict";
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
var globalDefaults = Chart.defaults.global;
|
|
|
|
var defaultConfig = {
|
|
display: true,
|
|
|
|
//Boolean - Whether to animate scaling the chart from the centre
|
|
animate: true,
|
|
lineArc: false,
|
|
position: "chartArea",
|
|
|
|
angleLines: {
|
|
display: true,
|
|
color: "rgba(0, 0, 0, 0.1)",
|
|
lineWidth: 1
|
|
},
|
|
|
|
// label settings
|
|
ticks: {
|
|
//Boolean - Show a backdrop to the scale label
|
|
showLabelBackdrop: true,
|
|
|
|
//String - The colour of the label backdrop
|
|
backdropColor: "rgba(255,255,255,0.75)",
|
|
|
|
//Number - The backdrop padding above & below the label in pixels
|
|
backdropPaddingY: 2,
|
|
|
|
//Number - The backdrop padding to the side of the label in pixels
|
|
backdropPaddingX: 2
|
|
},
|
|
|
|
pointLabels: {
|
|
//Number - Point label font size in pixels
|
|
fontSize: 10,
|
|
|
|
//Function - Used to convert point labels
|
|
callback: function(label) {
|
|
return label;
|
|
}
|
|
}
|
|
};
|
|
|
|
var LinearRadialScale = Chart.LinearScaleBase.extend({
|
|
getValueCount: function() {
|
|
return this.chart.data.labels.length;
|
|
},
|
|
setDimensions: function() {
|
|
var me = this;
|
|
var opts = me.options;
|
|
var tickOpts = opts.ticks;
|
|
// Set the unconstrained dimension before label rotation
|
|
me.width = me.maxWidth;
|
|
me.height = me.maxHeight;
|
|
me.xCenter = Math.round(me.width / 2);
|
|
me.yCenter = Math.round(me.height / 2);
|
|
|
|
var minSize = helpers.min([me.height, me.width]);
|
|
var tickFontSize = helpers.getValueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
|
|
me.drawingArea = opts.display ? (minSize / 2) - (tickFontSize / 2 + tickOpts.backdropPaddingY) : (minSize / 2);
|
|
},
|
|
determineDataLimits: function() {
|
|
var me = this;
|
|
var chart = me.chart;
|
|
me.min = null;
|
|
me.max = null;
|
|
|
|
|
|
helpers.each(chart.data.datasets, function(dataset, datasetIndex) {
|
|
if (chart.isDatasetVisible(datasetIndex)) {
|
|
var meta = chart.getDatasetMeta(datasetIndex);
|
|
|
|
helpers.each(dataset.data, function(rawValue, index) {
|
|
var value = +me.getRightValue(rawValue);
|
|
if (isNaN(value) || meta.data[index].hidden) {
|
|
return;
|
|
}
|
|
|
|
if (me.min === null) {
|
|
me.min = value;
|
|
} else if (value < me.min) {
|
|
me.min = value;
|
|
}
|
|
|
|
if (me.max === null) {
|
|
me.max = value;
|
|
} else if (value > me.max) {
|
|
me.max = value;
|
|
}
|
|
});
|
|
}
|
|
});
|
|
|
|
// Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
|
|
me.handleTickRangeOptions();
|
|
},
|
|
getTickLimit: function() {
|
|
var tickOpts = this.options.ticks;
|
|
var tickFontSize = helpers.getValueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
|
|
return Math.min(tickOpts.maxTicksLimit ? tickOpts.maxTicksLimit : 11, Math.ceil(this.drawingArea / (1.5 * tickFontSize)));
|
|
},
|
|
convertTicksToLabels: function() {
|
|
var me = this;
|
|
Chart.LinearScaleBase.prototype.convertTicksToLabels.call(me);
|
|
|
|
// Point labels
|
|
me.pointLabels = me.chart.data.labels.map(me.options.pointLabels.callback, me);
|
|
},
|
|
getLabelForIndex: function(index, datasetIndex) {
|
|
return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
|
|
},
|
|
fit: function() {
|
|
/*
|
|
* Right, this is really confusing and there is a lot of maths going on here
|
|
* The gist of the problem is here: https://gist.github.com/nnnick/696cc9c55f4b0beb8fe9
|
|
*
|
|
* Reaction: https://dl.dropboxusercontent.com/u/34601363/toomuchscience.gif
|
|
*
|
|
* Solution:
|
|
*
|
|
* We assume the radius of the polygon is half the size of the canvas at first
|
|
* at each index we check if the text overlaps.
|
|
*
|
|
* Where it does, we store that angle and that index.
|
|
*
|
|
* After finding the largest index and angle we calculate how much we need to remove
|
|
* from the shape radius to move the point inwards by that x.
|
|
*
|
|
* We average the left and right distances to get the maximum shape radius that can fit in the box
|
|
* along with labels.
|
|
*
|
|
* Once we have that, we can find the centre point for the chart, by taking the x text protrusion
|
|
* on each side, removing that from the size, halving it and adding the left x protrusion width.
|
|
*
|
|
* This will mean we have a shape fitted to the canvas, as large as it can be with the labels
|
|
* and position it in the most space efficient manner
|
|
*
|
|
* https://dl.dropboxusercontent.com/u/34601363/yeahscience.gif
|
|
*/
|
|
|
|
var pointLabels = this.options.pointLabels;
|
|
var pointLabelFontSize = helpers.getValueOrDefault(pointLabels.fontSize, globalDefaults.defaultFontSize);
|
|
var pointLabeFontStyle = helpers.getValueOrDefault(pointLabels.fontStyle, globalDefaults.defaultFontStyle);
|
|
var pointLabeFontFamily = helpers.getValueOrDefault(pointLabels.fontFamily, globalDefaults.defaultFontFamily);
|
|
var pointLabeFont = helpers.fontString(pointLabelFontSize, pointLabeFontStyle, pointLabeFontFamily);
|
|
|
|
// Get maximum radius of the polygon. Either half the height (minus the text width) or half the width.
|
|
// Use this to calculate the offset + change. - Make sure L/R protrusion is at least 0 to stop issues with centre points
|
|
var largestPossibleRadius = helpers.min([(this.height / 2 - pointLabelFontSize - 5), this.width / 2]),
|
|
pointPosition,
|
|
i,
|
|
textWidth,
|
|
halfTextWidth,
|
|
furthestRight = this.width,
|
|
furthestRightIndex,
|
|
furthestRightAngle,
|
|
furthestLeft = 0,
|
|
furthestLeftIndex,
|
|
furthestLeftAngle,
|
|
xProtrusionLeft,
|
|
xProtrusionRight,
|
|
radiusReductionRight,
|
|
radiusReductionLeft;
|
|
this.ctx.font = pointLabeFont;
|
|
|
|
for (i = 0; i < this.getValueCount(); i++) {
|
|
// 5px to space the text slightly out - similar to what we do in the draw function.
|
|
pointPosition = this.getPointPosition(i, largestPossibleRadius);
|
|
textWidth = this.ctx.measureText(this.pointLabels[i] ? this.pointLabels[i] : '').width + 5;
|
|
|
|
// Add quarter circle to make degree 0 mean top of circle
|
|
var angleRadians = this.getIndexAngle(i) + (Math.PI / 2);
|
|
var angle = (angleRadians * 360 / (2 * Math.PI)) % 360;
|
|
|
|
if (angle === 0 || angle === 180) {
|
|
// At angle 0 and 180, we're at exactly the top/bottom
|
|
// of the radar chart, so text will be aligned centrally, so we'll half it and compare
|
|
// w/left and right text sizes
|
|
halfTextWidth = textWidth / 2;
|
|
if (pointPosition.x + halfTextWidth > furthestRight) {
|
|
furthestRight = pointPosition.x + halfTextWidth;
|
|
furthestRightIndex = i;
|
|
}
|
|
if (pointPosition.x - halfTextWidth < furthestLeft) {
|
|
furthestLeft = pointPosition.x - halfTextWidth;
|
|
furthestLeftIndex = i;
|
|
}
|
|
} else if (angle < 180) {
|
|
// Less than half the values means we'll left align the text
|
|
if (pointPosition.x + textWidth > furthestRight) {
|
|
furthestRight = pointPosition.x + textWidth;
|
|
furthestRightIndex = i;
|
|
}
|
|
} else {
|
|
// More than half the values means we'll right align the text
|
|
if (pointPosition.x - textWidth < furthestLeft) {
|
|
furthestLeft = pointPosition.x - textWidth;
|
|
furthestLeftIndex = i;
|
|
}
|
|
}
|
|
}
|
|
|
|
xProtrusionLeft = furthestLeft;
|
|
xProtrusionRight = Math.ceil(furthestRight - this.width);
|
|
|
|
furthestRightAngle = this.getIndexAngle(furthestRightIndex);
|
|
furthestLeftAngle = this.getIndexAngle(furthestLeftIndex);
|
|
|
|
radiusReductionRight = xProtrusionRight / Math.sin(furthestRightAngle + Math.PI / 2);
|
|
radiusReductionLeft = xProtrusionLeft / Math.sin(furthestLeftAngle + Math.PI / 2);
|
|
|
|
// Ensure we actually need to reduce the size of the chart
|
|
radiusReductionRight = (helpers.isNumber(radiusReductionRight)) ? radiusReductionRight : 0;
|
|
radiusReductionLeft = (helpers.isNumber(radiusReductionLeft)) ? radiusReductionLeft : 0;
|
|
|
|
this.drawingArea = Math.round(largestPossibleRadius - (radiusReductionLeft + radiusReductionRight) / 2);
|
|
this.setCenterPoint(radiusReductionLeft, radiusReductionRight);
|
|
},
|
|
setCenterPoint: function(leftMovement, rightMovement) {
|
|
var me = this;
|
|
var maxRight = me.width - rightMovement - me.drawingArea,
|
|
maxLeft = leftMovement + me.drawingArea;
|
|
|
|
me.xCenter = Math.round(((maxLeft + maxRight) / 2) + me.left);
|
|
// Always vertically in the centre as the text height doesn't change
|
|
me.yCenter = Math.round((me.height / 2) + me.top);
|
|
},
|
|
|
|
getIndexAngle: function(index) {
|
|
var angleMultiplier = (Math.PI * 2) / this.getValueCount();
|
|
var startAngle = this.chart.options && this.chart.options.startAngle ?
|
|
this.chart.options.startAngle :
|
|
0;
|
|
|
|
var startAngleRadians = startAngle * Math.PI * 2 / 360;
|
|
|
|
// Start from the top instead of right, so remove a quarter of the circle
|
|
return index * angleMultiplier - (Math.PI / 2) + startAngleRadians;
|
|
},
|
|
getDistanceFromCenterForValue: function(value) {
|
|
var me = this;
|
|
|
|
if (value === null) {
|
|
return 0; // null always in center
|
|
}
|
|
|
|
// Take into account half font size + the yPadding of the top value
|
|
var scalingFactor = me.drawingArea / (me.max - me.min);
|
|
if (me.options.reverse) {
|
|
return (me.max - value) * scalingFactor;
|
|
} else {
|
|
return (value - me.min) * scalingFactor;
|
|
}
|
|
},
|
|
getPointPosition: function(index, distanceFromCenter) {
|
|
var me = this;
|
|
var thisAngle = me.getIndexAngle(index);
|
|
return {
|
|
x: Math.round(Math.cos(thisAngle) * distanceFromCenter) + me.xCenter,
|
|
y: Math.round(Math.sin(thisAngle) * distanceFromCenter) + me.yCenter
|
|
};
|
|
},
|
|
getPointPositionForValue: function(index, value) {
|
|
return this.getPointPosition(index, this.getDistanceFromCenterForValue(value));
|
|
},
|
|
|
|
getBasePosition: function() {
|
|
var me = this;
|
|
var min = me.min;
|
|
var max = me.max;
|
|
|
|
return me.getPointPositionForValue(0,
|
|
me.beginAtZero? 0:
|
|
min < 0 && max < 0? max :
|
|
min > 0 && max > 0? min :
|
|
0);
|
|
},
|
|
|
|
draw: function() {
|
|
var me = this;
|
|
var opts = me.options;
|
|
var gridLineOpts = opts.gridLines;
|
|
var tickOpts = opts.ticks;
|
|
var angleLineOpts = opts.angleLines;
|
|
var pointLabelOpts = opts.pointLabels;
|
|
var getValueOrDefault = helpers.getValueOrDefault;
|
|
|
|
if (opts.display) {
|
|
var ctx = me.ctx;
|
|
|
|
// Tick Font
|
|
var tickFontSize = getValueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
|
|
var tickFontStyle = getValueOrDefault(tickOpts.fontStyle, globalDefaults.defaultFontStyle);
|
|
var tickFontFamily = getValueOrDefault(tickOpts.fontFamily, globalDefaults.defaultFontFamily);
|
|
var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily);
|
|
|
|
helpers.each(me.ticks, function(label, index) {
|
|
// Don't draw a centre value (if it is minimum)
|
|
if (index > 0 || opts.reverse) {
|
|
var yCenterOffset = me.getDistanceFromCenterForValue(me.ticksAsNumbers[index]);
|
|
var yHeight = me.yCenter - yCenterOffset;
|
|
|
|
// Draw circular lines around the scale
|
|
if (gridLineOpts.display && index !== 0) {
|
|
ctx.strokeStyle = helpers.getValueAtIndexOrDefault(gridLineOpts.color, index - 1);
|
|
ctx.lineWidth = helpers.getValueAtIndexOrDefault(gridLineOpts.lineWidth, index - 1);
|
|
|
|
if (opts.lineArc) {
|
|
// Draw circular arcs between the points
|
|
ctx.beginPath();
|
|
ctx.arc(me.xCenter, me.yCenter, yCenterOffset, 0, Math.PI * 2);
|
|
ctx.closePath();
|
|
ctx.stroke();
|
|
} else {
|
|
// Draw straight lines connecting each index
|
|
ctx.beginPath();
|
|
for (var i = 0; i < me.getValueCount(); i++) {
|
|
var pointPosition = me.getPointPosition(i, yCenterOffset);
|
|
if (i === 0) {
|
|
ctx.moveTo(pointPosition.x, pointPosition.y);
|
|
} else {
|
|
ctx.lineTo(pointPosition.x, pointPosition.y);
|
|
}
|
|
}
|
|
ctx.closePath();
|
|
ctx.stroke();
|
|
}
|
|
}
|
|
|
|
if (tickOpts.display) {
|
|
var tickFontColor = getValueOrDefault(tickOpts.fontColor, globalDefaults.defaultFontColor);
|
|
ctx.font = tickLabelFont;
|
|
|
|
if (tickOpts.showLabelBackdrop) {
|
|
var labelWidth = ctx.measureText(label).width;
|
|
ctx.fillStyle = tickOpts.backdropColor;
|
|
ctx.fillRect(
|
|
me.xCenter - labelWidth / 2 - tickOpts.backdropPaddingX,
|
|
yHeight - tickFontSize / 2 - tickOpts.backdropPaddingY,
|
|
labelWidth + tickOpts.backdropPaddingX * 2,
|
|
tickFontSize + tickOpts.backdropPaddingY * 2
|
|
);
|
|
}
|
|
|
|
ctx.textAlign = 'center';
|
|
ctx.textBaseline = "middle";
|
|
ctx.fillStyle = tickFontColor;
|
|
ctx.fillText(label, me.xCenter, yHeight);
|
|
}
|
|
}
|
|
});
|
|
|
|
if (!opts.lineArc) {
|
|
ctx.lineWidth = angleLineOpts.lineWidth;
|
|
ctx.strokeStyle = angleLineOpts.color;
|
|
|
|
var outerDistance = me.getDistanceFromCenterForValue(opts.reverse ? me.min : me.max);
|
|
|
|
// Point Label Font
|
|
var pointLabelFontSize = getValueOrDefault(pointLabelOpts.fontSize, globalDefaults.defaultFontSize);
|
|
var pointLabeFontStyle = getValueOrDefault(pointLabelOpts.fontStyle, globalDefaults.defaultFontStyle);
|
|
var pointLabeFontFamily = getValueOrDefault(pointLabelOpts.fontFamily, globalDefaults.defaultFontFamily);
|
|
var pointLabeFont = helpers.fontString(pointLabelFontSize, pointLabeFontStyle, pointLabeFontFamily);
|
|
|
|
for (var i = me.getValueCount() - 1; i >= 0; i--) {
|
|
if (angleLineOpts.display) {
|
|
var outerPosition = me.getPointPosition(i, outerDistance);
|
|
ctx.beginPath();
|
|
ctx.moveTo(me.xCenter, me.yCenter);
|
|
ctx.lineTo(outerPosition.x, outerPosition.y);
|
|
ctx.stroke();
|
|
ctx.closePath();
|
|
}
|
|
// Extra 3px out for some label spacing
|
|
var pointLabelPosition = me.getPointPosition(i, outerDistance + 5);
|
|
|
|
// Keep this in loop since we may support array properties here
|
|
var pointLabelFontColor = getValueOrDefault(pointLabelOpts.fontColor, globalDefaults.defaultFontColor);
|
|
ctx.font = pointLabeFont;
|
|
ctx.fillStyle = pointLabelFontColor;
|
|
|
|
var pointLabels = me.pointLabels;
|
|
|
|
// Add quarter circle to make degree 0 mean top of circle
|
|
var angleRadians = this.getIndexAngle(i) + (Math.PI / 2);
|
|
var angle = (angleRadians * 360 / (2 * Math.PI)) % 360;
|
|
|
|
if (angle === 0 || angle === 180) {
|
|
ctx.textAlign = 'center';
|
|
} else if (angle < 180) {
|
|
ctx.textAlign = 'left';
|
|
} else {
|
|
ctx.textAlign = 'right';
|
|
}
|
|
|
|
// Set the correct text baseline based on outer positioning
|
|
if (angle === 90 || angle === 270) {
|
|
ctx.textBaseline = 'middle';
|
|
} else if (angle > 270 || angle < 90) {
|
|
ctx.textBaseline = 'bottom';
|
|
} else {
|
|
ctx.textBaseline = 'top';
|
|
}
|
|
|
|
ctx.fillText(pointLabels[i] ? pointLabels[i] : '', pointLabelPosition.x, pointLabelPosition.y);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
});
|
|
Chart.scaleService.registerScaleType("radialLinear", LinearRadialScale, defaultConfig);
|
|
|
|
};
|
|
|
|
},{}],44:[function(require,module,exports){
|
|
/*global window: false */
|
|
"use strict";
|
|
|
|
var moment = require(1);
|
|
moment = typeof(moment) === 'function' ? moment : window.moment;
|
|
|
|
module.exports = function(Chart) {
|
|
|
|
var helpers = Chart.helpers;
|
|
var time = {
|
|
units: [{
|
|
name: 'millisecond',
|
|
steps: [1, 2, 5, 10, 20, 50, 100, 250, 500]
|
|
}, {
|
|
name: 'second',
|
|
steps: [1, 2, 5, 10, 30]
|
|
}, {
|
|
name: 'minute',
|
|
steps: [1, 2, 5, 10, 30]
|
|
}, {
|
|
name: 'hour',
|
|
steps: [1, 2, 3, 6, 12]
|
|
}, {
|
|
name: 'day',
|
|
steps: [1, 2, 5]
|
|
}, {
|
|
name: 'week',
|
|
maxStep: 4
|
|
}, {
|
|
name: 'month',
|
|
maxStep: 3
|
|
}, {
|
|
name: 'quarter',
|
|
maxStep: 4
|
|
}, {
|
|
name: 'year',
|
|
maxStep: false
|
|
}]
|
|
};
|
|
|
|
var defaultConfig = {
|
|
position: "bottom",
|
|
|
|
time: {
|
|
parser: false, // false == a pattern string from http://momentjs.com/docs/#/parsing/string-format/ or a custom callback that converts its argument to a moment
|
|
format: false, // DEPRECATED false == date objects, moment object, callback or a pattern string from http://momentjs.com/docs/#/parsing/string-format/
|
|
unit: false, // false == automatic or override with week, month, year, etc.
|
|
round: false, // none, or override with week, month, year, etc.
|
|
displayFormat: false, // DEPRECATED
|
|
isoWeekday: false, // override week start day - see http://momentjs.com/docs/#/get-set/iso-weekday/
|
|
|
|
// defaults to unit's corresponding unitFormat below or override using pattern string from http://momentjs.com/docs/#/displaying/format/
|
|
displayFormats: {
|
|
'millisecond': 'h:mm:ss.SSS a', // 11:20:01.123 AM,
|
|
'second': 'h:mm:ss a', // 11:20:01 AM
|
|
'minute': 'h:mm:ss a', // 11:20:01 AM
|
|
'hour': 'MMM D, hA', // Sept 4, 5PM
|
|
'day': 'll', // Sep 4 2015
|
|
'week': 'll', // Week 46, or maybe "[W]WW - YYYY" ?
|
|
'month': 'MMM YYYY', // Sept 2015
|
|
'quarter': '[Q]Q - YYYY', // Q3
|
|
'year': 'YYYY' // 2015
|
|
}
|
|
},
|
|
ticks: {
|
|
autoSkip: false
|
|
}
|
|
};
|
|
|
|
var TimeScale = Chart.Scale.extend({
|
|
initialize: function() {
|
|
if (!moment) {
|
|
throw new Error('Chart.js - Moment.js could not be found! You must include it before Chart.js to use the time scale. Download at https://momentjs.com');
|
|
}
|
|
|
|
Chart.Scale.prototype.initialize.call(this);
|
|
},
|
|
getLabelMoment: function(datasetIndex, index) {
|
|
if (typeof this.labelMoments[datasetIndex] != 'undefined') {
|
|
return this.labelMoments[datasetIndex][index];
|
|
}
|
|
|
|
return null;
|
|
},
|
|
getMomentStartOf: function(tick) {
|
|
var me = this;
|
|
if (me.options.time.unit === 'week' && me.options.time.isoWeekday !== false) {
|
|
return tick.clone().startOf('isoWeek').isoWeekday(me.options.time.isoWeekday);
|
|
} else {
|
|
return tick.clone().startOf(me.tickUnit);
|
|
}
|
|
},
|
|
determineDataLimits: function() {
|
|
var me = this;
|
|
me.labelMoments = [];
|
|
|
|
// Only parse these once. If the dataset does not have data as x,y pairs, we will use
|
|
// these
|
|
var scaleLabelMoments = [];
|
|
if (me.chart.data.labels && me.chart.data.labels.length > 0) {
|
|
helpers.each(me.chart.data.labels, function(label) {
|
|
var labelMoment = me.parseTime(label);
|
|
|
|
if (labelMoment.isValid()) {
|
|
if (me.options.time.round) {
|
|
labelMoment.startOf(me.options.time.round);
|
|
}
|
|
scaleLabelMoments.push(labelMoment);
|
|
}
|
|
}, me);
|
|
|
|
me.firstTick = moment.min.call(me, scaleLabelMoments);
|
|
me.lastTick = moment.max.call(me, scaleLabelMoments);
|
|
} else {
|
|
me.firstTick = null;
|
|
me.lastTick = null;
|
|
}
|
|
|
|
helpers.each(me.chart.data.datasets, function(dataset, datasetIndex) {
|
|
var momentsForDataset = [];
|
|
var datasetVisible = me.chart.isDatasetVisible(datasetIndex);
|
|
|
|
if (typeof dataset.data[0] === 'object' && dataset.data[0] !== null) {
|
|
helpers.each(dataset.data, function(value) {
|
|
var labelMoment = me.parseTime(me.getRightValue(value));
|
|
|
|
if (labelMoment.isValid()) {
|
|
if (me.options.time.round) {
|
|
labelMoment.startOf(me.options.time.round);
|
|
}
|
|
momentsForDataset.push(labelMoment);
|
|
|
|
if (datasetVisible) {
|
|
// May have gone outside the scale ranges, make sure we keep the first and last ticks updated
|
|
me.firstTick = me.firstTick !== null ? moment.min(me.firstTick, labelMoment) : labelMoment;
|
|
me.lastTick = me.lastTick !== null ? moment.max(me.lastTick, labelMoment) : labelMoment;
|
|
}
|
|
}
|
|
}, me);
|
|
} else {
|
|
// We have no labels. Use the ones from the scale
|
|
momentsForDataset = scaleLabelMoments;
|
|
}
|
|
|
|
me.labelMoments.push(momentsForDataset);
|
|
}, me);
|
|
|
|
// Set these after we've done all the data
|
|
if (me.options.time.min) {
|
|
me.firstTick = me.parseTime(me.options.time.min);
|
|
}
|
|
|
|
if (me.options.time.max) {
|
|
me.lastTick = me.parseTime(me.options.time.max);
|
|
}
|
|
|
|
// We will modify these, so clone for later
|
|
me.firstTick = (me.firstTick || moment()).clone();
|
|
me.lastTick = (me.lastTick || moment()).clone();
|
|
},
|
|
buildTicks: function() {
|
|
var me = this;
|
|
|
|
me.ctx.save();
|
|
var tickFontSize = helpers.getValueOrDefault(me.options.ticks.fontSize, Chart.defaults.global.defaultFontSize);
|
|
var tickFontStyle = helpers.getValueOrDefault(me.options.ticks.fontStyle, Chart.defaults.global.defaultFontStyle);
|
|
var tickFontFamily = helpers.getValueOrDefault(me.options.ticks.fontFamily, Chart.defaults.global.defaultFontFamily);
|
|
var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily);
|
|
me.ctx.font = tickLabelFont;
|
|
|
|
me.ticks = [];
|
|
me.unitScale = 1; // How much we scale the unit by, ie 2 means 2x unit per step
|
|
me.scaleSizeInUnits = 0; // How large the scale is in the base unit (seconds, minutes, etc)
|
|
|
|
// Set unit override if applicable
|
|
if (me.options.time.unit) {
|
|
me.tickUnit = me.options.time.unit || 'day';
|
|
me.displayFormat = me.options.time.displayFormats[me.tickUnit];
|
|
me.scaleSizeInUnits = me.lastTick.diff(me.firstTick, me.tickUnit, true);
|
|
me.unitScale = helpers.getValueOrDefault(me.options.time.unitStepSize, 1);
|
|
} else {
|
|
// Determine the smallest needed unit of the time
|
|
var innerWidth = me.isHorizontal() ? me.width - (me.paddingLeft + me.paddingRight) : me.height - (me.paddingTop + me.paddingBottom);
|
|
|
|
// Crude approximation of what the label length might be
|
|
var tempFirstLabel = me.tickFormatFunction(me.firstTick, 0, []);
|
|
var tickLabelWidth = me.ctx.measureText(tempFirstLabel).width;
|
|
var cosRotation = Math.cos(helpers.toRadians(me.options.ticks.maxRotation));
|
|
var sinRotation = Math.sin(helpers.toRadians(me.options.ticks.maxRotation));
|
|
tickLabelWidth = (tickLabelWidth * cosRotation) + (tickFontSize * sinRotation);
|
|
var labelCapacity = innerWidth / (tickLabelWidth);
|
|
|
|
// Start as small as possible
|
|
me.tickUnit = 'millisecond';
|
|
me.scaleSizeInUnits = me.lastTick.diff(me.firstTick, me.tickUnit, true);
|
|
me.displayFormat = me.options.time.displayFormats[me.tickUnit];
|
|
|
|
var unitDefinitionIndex = 0;
|
|
var unitDefinition = time.units[unitDefinitionIndex];
|
|
|
|
// While we aren't ideal and we don't have units left
|
|
while (unitDefinitionIndex < time.units.length) {
|
|
// Can we scale this unit. If `false` we can scale infinitely
|
|
me.unitScale = 1;
|
|
|
|
if (helpers.isArray(unitDefinition.steps) && Math.ceil(me.scaleSizeInUnits / labelCapacity) < helpers.max(unitDefinition.steps)) {
|
|
// Use one of the prefedined steps
|
|
for (var idx = 0; idx < unitDefinition.steps.length; ++idx) {
|
|
if (unitDefinition.steps[idx] >= Math.ceil(me.scaleSizeInUnits / labelCapacity)) {
|
|
me.unitScale = helpers.getValueOrDefault(me.options.time.unitStepSize, unitDefinition.steps[idx]);
|
|
break;
|
|
}
|
|
}
|
|
|
|
break;
|
|
} else if ((unitDefinition.maxStep === false) || (Math.ceil(me.scaleSizeInUnits / labelCapacity) < unitDefinition.maxStep)) {
|
|
// We have a max step. Scale this unit
|
|
me.unitScale = helpers.getValueOrDefault(me.options.time.unitStepSize, Math.ceil(me.scaleSizeInUnits / labelCapacity));
|
|
break;
|
|
} else {
|
|
// Move to the next unit up
|
|
++unitDefinitionIndex;
|
|
unitDefinition = time.units[unitDefinitionIndex];
|
|
|
|
me.tickUnit = unitDefinition.name;
|
|
var leadingUnitBuffer = me.firstTick.diff(me.getMomentStartOf(me.firstTick), me.tickUnit, true);
|
|
var trailingUnitBuffer = me.getMomentStartOf(me.lastTick.clone().add(1, me.tickUnit)).diff(me.lastTick, me.tickUnit, true);
|
|
me.scaleSizeInUnits = me.lastTick.diff(me.firstTick, me.tickUnit, true) + leadingUnitBuffer + trailingUnitBuffer;
|
|
me.displayFormat = me.options.time.displayFormats[unitDefinition.name];
|
|
}
|
|
}
|
|
}
|
|
|
|
var roundedStart;
|
|
|
|
// Only round the first tick if we have no hard minimum
|
|
if (!me.options.time.min) {
|
|
me.firstTick = me.getMomentStartOf(me.firstTick);
|
|
roundedStart = me.firstTick;
|
|
} else {
|
|
roundedStart = me.getMomentStartOf(me.firstTick);
|
|
}
|
|
|
|
// Only round the last tick if we have no hard maximum
|
|
if (!me.options.time.max) {
|
|
var roundedEnd = me.getMomentStartOf(me.lastTick);
|
|
var delta = roundedEnd.diff(me.lastTick, me.tickUnit, true);
|
|
if (delta < 0) {
|
|
// Do not use end of because we need me to be in the next time unit
|
|
me.lastTick = me.getMomentStartOf(me.lastTick.add(1, me.tickUnit));
|
|
} else if (delta >= 0) {
|
|
me.lastTick = roundedEnd;
|
|
}
|
|
|
|
me.scaleSizeInUnits = me.lastTick.diff(me.firstTick, me.tickUnit, true);
|
|
}
|
|
|
|
// Tick displayFormat override
|
|
if (me.options.time.displayFormat) {
|
|
me.displayFormat = me.options.time.displayFormat;
|
|
}
|
|
|
|
// first tick. will have been rounded correctly if options.time.min is not specified
|
|
me.ticks.push(me.firstTick.clone());
|
|
|
|
// For every unit in between the first and last moment, create a moment and add it to the ticks tick
|
|
for (var i = 1; i <= me.scaleSizeInUnits; ++i) {
|
|
var newTick = roundedStart.clone().add(i, me.tickUnit);
|
|
|
|
// Are we greater than the max time
|
|
if (me.options.time.max && newTick.diff(me.lastTick, me.tickUnit, true) >= 0) {
|
|
break;
|
|
}
|
|
|
|
if (i % me.unitScale === 0) {
|
|
me.ticks.push(newTick);
|
|
}
|
|
}
|
|
|
|
// Always show the right tick
|
|
var diff = me.ticks[me.ticks.length - 1].diff(me.lastTick, me.tickUnit);
|
|
if (diff !== 0 || me.scaleSizeInUnits === 0) {
|
|
// this is a weird case. If the <max> option is the same as the end option, we can't just diff the times because the tick was created from the roundedStart
|
|
// but the last tick was not rounded.
|
|
if (me.options.time.max) {
|
|
me.ticks.push(me.lastTick.clone());
|
|
me.scaleSizeInUnits = me.lastTick.diff(me.ticks[0], me.tickUnit, true);
|
|
} else {
|
|
me.ticks.push(me.lastTick.clone());
|
|
me.scaleSizeInUnits = me.lastTick.diff(me.firstTick, me.tickUnit, true);
|
|
}
|
|
}
|
|
|
|
me.ctx.restore();
|
|
},
|
|
// Get tooltip label
|
|
getLabelForIndex: function(index, datasetIndex) {
|
|
var me = this;
|
|
var label = me.chart.data.labels && index < me.chart.data.labels.length ? me.chart.data.labels[index] : '';
|
|
|
|
if (typeof me.chart.data.datasets[datasetIndex].data[0] === 'object') {
|
|
label = me.getRightValue(me.chart.data.datasets[datasetIndex].data[index]);
|
|
}
|
|
|
|
// Format nicely
|
|
if (me.options.time.tooltipFormat) {
|
|
label = me.parseTime(label).format(me.options.time.tooltipFormat);
|
|
}
|
|
|
|
return label;
|
|
},
|
|
// Function to format an individual tick mark
|
|
tickFormatFunction: function(tick, index, ticks) {
|
|
var formattedTick = tick.format(this.displayFormat);
|
|
var tickOpts = this.options.ticks;
|
|
var callback = helpers.getValueOrDefault(tickOpts.callback, tickOpts.userCallback);
|
|
|
|
if (callback) {
|
|
return callback(formattedTick, index, ticks);
|
|
} else {
|
|
return formattedTick;
|
|
}
|
|
},
|
|
convertTicksToLabels: function() {
|
|
var me = this;
|
|
me.tickMoments = me.ticks;
|
|
me.ticks = me.ticks.map(me.tickFormatFunction, me);
|
|
},
|
|
getPixelForValue: function(value, index, datasetIndex) {
|
|
var me = this;
|
|
if (!value || !value.isValid) {
|
|
// not already a moment object
|
|
value = me.parseTime(me.getRightValue(value));
|
|
}
|
|
var labelMoment = value && value.isValid && value.isValid() ? value : me.getLabelMoment(datasetIndex, index);
|
|
|
|
if (labelMoment) {
|
|
var offset = labelMoment.diff(me.firstTick, me.tickUnit, true);
|
|
|
|
var decimal = offset !== 0 ? offset / me.scaleSizeInUnits : offset;
|
|
|
|
if (me.isHorizontal()) {
|
|
var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
|
|
var valueOffset = (innerWidth * decimal) + me.paddingLeft;
|
|
|
|
return me.left + Math.round(valueOffset);
|
|
} else {
|
|
var innerHeight = me.height - (me.paddingTop + me.paddingBottom);
|
|
var heightOffset = (innerHeight * decimal) + me.paddingTop;
|
|
|
|
return me.top + Math.round(heightOffset);
|
|
}
|
|
}
|
|
},
|
|
getPixelForTick: function(index) {
|
|
return this.getPixelForValue(this.tickMoments[index], null, null);
|
|
},
|
|
getValueForPixel: function(pixel) {
|
|
var me = this;
|
|
var innerDimension = me.isHorizontal() ? me.width - (me.paddingLeft + me.paddingRight) : me.height - (me.paddingTop + me.paddingBottom);
|
|
var offset = (pixel - (me.isHorizontal() ? me.left + me.paddingLeft : me.top + me.paddingTop)) / innerDimension;
|
|
offset *= me.scaleSizeInUnits;
|
|
return me.firstTick.clone().add(moment.duration(offset, me.tickUnit).asSeconds(), 'seconds');
|
|
},
|
|
parseTime: function(label) {
|
|
var me = this;
|
|
if (typeof me.options.time.parser === 'string') {
|
|
return moment(label, me.options.time.parser);
|
|
}
|
|
if (typeof me.options.time.parser === 'function') {
|
|
return me.options.time.parser(label);
|
|
}
|
|
// Date objects
|
|
if (typeof label.getMonth === 'function' || typeof label === 'number') {
|
|
return moment(label);
|
|
}
|
|
// Moment support
|
|
if (label.isValid && label.isValid()) {
|
|
return label;
|
|
}
|
|
// Custom parsing (return an instance of moment)
|
|
if (typeof me.options.time.format !== 'string' && me.options.time.format.call) {
|
|
console.warn("options.time.format is deprecated and replaced by options.time.parser. See http://nnnick.github.io/Chart.js/docs-v2/#scales-time-scale");
|
|
return me.options.time.format(label);
|
|
}
|
|
// Moment format parsing
|
|
return moment(label, me.options.time.format);
|
|
}
|
|
});
|
|
Chart.scaleService.registerScaleType("time", TimeScale, defaultConfig);
|
|
|
|
};
|
|
|
|
},{"1":1}]},{},[7])(7)
|
|
}); |