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📁 ..	-	2026-02-12 14:54
📄 .bower.json { "name": "Chart.js", "version": "1.0.2", "description": "Simple HTML5 Charts using the canvas element", "homepage": "https://github.com/nnnick/Chart.js", "author": "nnnick", "main": [ "Chart.js" ], "dependencies": {}, "_release": "1.0.2", "_resolution": { "type": "version", "tag": "v1.0.2", "commit": "930b16a0af59201dcfcd1594b0e7540db4d04c9f" }, "_source": "git://github.com/nnnick/Chart.js.git", "_target": "~1.0.2", "_originalSource": "chartjs" }	495 B	2026-02-12 14:54
📄 .gitignore .DS_Store node_modules/* custom/* docs/index.md	51 B	2026-02-12 14:54
📄 .travis.yml language: node_js node_js: - "0.11" - "0.10" before_script: - npm install script: - gulp test notifications: slack: chartjs:pcfCZR6ugg5TEcaLtmIfQYuA	162 B	2026-02-12 14:54
📄 CONTRIBUTING.md Contributing to Chart.js ======================== Contributions to Chart.js are welcome and encouraged, but please have a look through the guidelines in this document before raising an issue, or writing code for the project. Using issues ------------ The [issue tracker](https://github.com/nnnick/Chart.js/issues) is the preferred channel for reporting bugs, requesting new features and submitting pull requests. If you're suggesting a new chart type, please take a look at [writing new chart types](https://github.com/nnnick/Chart.js/blob/master/docs/06-Advanced.md#writing-new-chart-types) in the documentation, and some of the [community extensions](https://github.com/nnnick/Chart.js/blob/master/docs/06-Advanced.md#community-extensions) that have been created already. To keep the library lightweight for everyone, it's unlikely we'll add many more chart types to the core of Chart.js, but issues are a good medium to design and spec out how new chart types could work and look. Please do not use issues for support requests. For help using Chart.js, please take a look at the [`chartjs`](http://stackoverflow.com/questions/tagged/chartjs) tag on Stack Overflow. Reporting bugs -------------- Well structured, detailed bug reports are hugely valuable for the project. Guidlines for reporting bugs: - Check the issue search to see if it has already been reported - Isolate the problem to a simple test case - Provide a demonstration of the problem on [JS Bin](http://jsbin.com) or similar Please provide any additional details associated with the bug, if it's browser or screen density specific, or only happens with a certain configuration or data. Pull requests ------------- Clear, concise pull requests are excellent at continuing the project's community driven growth. But please review [these guidelines](https://github.com/blog/1943-how-to-write-the-perfect-pull-request) and the guidelines below before starting work on the project. Guidlines: - Please create an issue first: - For bugs, we can discuss the fixing approach - For enhancements, we can discuss if it is within the project scope and avoid duplicate effort - Please make changes to the files in [`/src`](https://github.com/nnnick/Chart.js/tree/master/src), not `Chart.js` or `Chart.min.js` in the repo root directory, this avoids merge conflicts - Tabs for indentation, not spaces please - If adding new functionality, please also update the relevant `.md` file in [`/docs`](https://github.com/nnnick/Chart.js/tree/master/docs) - Please make your commits in logical sections with clear commit messages Joining the Project ------------- - Active committers and contributors are invited to introduce yourself and request commit access to this project. Please send an email to hello@nickdownie.com or file an issue. License ------- By contributing your code, you agree to license your contribution under the [MIT license](https://github.com/nnnick/Chart.js/blob/master/LICENSE.md).	2.92 KB	2026-02-12 14:54
📄 Chart.js /! Chart.js * http://chartjs.org/ * Version: 1.0.2 * * Copyright 2015 Nick Downie * Released under the MIT license * https://github.com/nnnick/Chart.js/blob/master/LICENSE.md / (function(){ "use strict"; //Declare root variable - window in the browser, global on the server var root = this, previous = root.Chart; //Occupy the global variable of Chart, and create a simple base class var Chart = function(context){ var chart = this; this.canvas = context.canvas; this.ctx = context; //Variables global to the chart var computeDimension = function(element,dimension) { if (element['offset'+dimension]) { return element['offset'+dimension]; } else { return document.defaultView.getComputedStyle(element).getPropertyValue(dimension); } } var width = this.width = computeDimension(context.canvas,'Width'); var height = this.height = computeDimension(context.canvas,'Height'); // Firefox requires this to work correctly context.canvas.width = width; context.canvas.height = height; var width = this.width = context.canvas.width; var height = this.height = context.canvas.height; this.aspectRatio = this.width / this.height; //High pixel density displays - multiply the size of the canvas height/width by the device pixel ratio, then scale. helpers.retinaScale(this); return this; }; //Globally expose the defaults to allow for user updating/changing Chart.defaults = { global: { // Boolean - Whether to animate the chart animation: true, // Number - Number of animation steps animationSteps: 60, // String - Animation easing effect animationEasing: "easeOutQuart", // Boolean - If we should show the scale at all showScale: true, // Boolean - If we want to override with a hard coded scale scaleOverride: false, // * Required if scaleOverride is true ** // Number - The number of steps in a hard coded scale scaleSteps: null, // Number - The value jump in the hard coded scale scaleStepWidth: null, // Number - The scale starting value scaleStartValue: null, // String - Colour of the scale line scaleLineColor: "rgba(0,0,0,.1)", // Number - Pixel width of the scale line scaleLineWidth: 1, // Boolean - Whether to show labels on the scale scaleShowLabels: true, // Interpolated JS string - can access value scaleLabel: "<%=value%>", // Boolean - Whether the scale should stick to integers, and not show any floats even if drawing space is there scaleIntegersOnly: true, // Boolean - Whether the scale should start at zero, or an order of magnitude down from the lowest value scaleBeginAtZero: false, // String - Scale label font declaration for the scale label scaleFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif", // Number - Scale label font size in pixels scaleFontSize: 12, // String - Scale label font weight style scaleFontStyle: "normal", // String - Scale label font colour scaleFontColor: "#666", // Boolean - whether or not the chart should be responsive and resize when the browser does. responsive: false, // Boolean - whether to maintain the starting aspect ratio or not when responsive, if set to false, will take up entire container maintainAspectRatio: true, // Boolean - Determines whether to draw tooltips on the canvas or not - attaches events to touchmove & mousemove showTooltips: true, // Boolean - Determines whether to draw built-in tooltip or call custom tooltip function customTooltips: false, // Array - Array of string names to attach tooltip events tooltipEvents: ["mousemove", "touchstart", "touchmove", "mouseout"], // String - Tooltip background colour tooltipFillColor: "rgba(0,0,0,0.8)", // String - Tooltip label font declaration for the scale label tooltipFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif", // Number - Tooltip label font size in pixels tooltipFontSize: 14, // String - Tooltip font weight style tooltipFontStyle: "normal", // String - Tooltip label font colour tooltipFontColor: "#fff", // String - Tooltip title font declaration for the scale label tooltipTitleFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif", // Number - Tooltip title font size in pixels tooltipTitleFontSize: 14, // String - Tooltip title font weight style tooltipTitleFontStyle: "bold", // String - Tooltip title font colour tooltipTitleFontColor: "#fff", // Number - pixel width of padding around tooltip text tooltipYPadding: 6, // Number - pixel width of padding around tooltip text tooltipXPadding: 6, // Number - Size of the caret on the tooltip tooltipCaretSize: 8, // Number - Pixel radius of the tooltip border tooltipCornerRadius: 6, // Number - Pixel offset from point x to tooltip edge tooltipXOffset: 10, // String - Template string for single tooltips tooltipTemplate: "<%if (label){%><%=label%>: <%}%><%= value %>", // String - Template string for single tooltips multiTooltipTemplate: "<%= value %>", // String - Colour behind the legend colour block multiTooltipKeyBackground: '#fff', // Function - Will fire on animation progression. onAnimationProgress: function(){}, // Function - Will fire on animation completion. onAnimationComplete: function(){} } }; //Create a dictionary of chart types, to allow for extension of existing types Chart.types = {}; //Global Chart helpers object for utility methods and classes var helpers = Chart.helpers = {}; //-- Basic js utility methods var each = helpers.each = function(loopable,callback,self){ var additionalArgs = Array.prototype.slice.call(arguments, 3); // Check to see if null or undefined firstly. if (loopable){ if (loopable.length === +loopable.length){ var i; for (i=0; i<loopable.length; i++){ callback.apply(self,[loopable[i], i].concat(additionalArgs)); } } else{ for (var item in loopable){ callback.apply(self,[loopable[item],item].concat(additionalArgs)); } } } }, clone = helpers.clone = function(obj){ var objClone = {}; each(obj,function(value,key){ if (obj.hasOwnProperty(key)) objClone[key] = value; }); return objClone; }, extend = helpers.extend = function(base){ each(Array.prototype.slice.call(arguments,1), function(extensionObject) { each(extensionObject,function(value,key){ if (extensionObject.hasOwnProperty(key)) base[key] = value; }); }); return base; }, merge = helpers.merge = function(base,master){ //Merge properties in left object over to a shallow clone of object right. var args = Array.prototype.slice.call(arguments,0); args.unshift({}); return extend.apply(null, args); }, indexOf = helpers.indexOf = function(arrayToSearch, item){ if (Array.prototype.indexOf) { return arrayToSearch.indexOf(item); } else{ for (var i = 0; i < arrayToSearch.length; i++) { if (arrayToSearch[i] === item) return i; } return -1; } }, where = helpers.where = function(collection, filterCallback){ var filtered = []; helpers.each(collection, function(item){ if (filterCallback(item)){ filtered.push(item); } }); return filtered; }, findNextWhere = helpers.findNextWhere = function(arrayToSearch, filterCallback, startIndex){ // Default to start of the array if (!startIndex){ startIndex = -1; } for (var i = startIndex + 1; i < arrayToSearch.length; i++) { var currentItem = arrayToSearch[i]; if (filterCallback(currentItem)){ return currentItem; } } }, findPreviousWhere = helpers.findPreviousWhere = function(arrayToSearch, filterCallback, startIndex){ // Default to end of the array if (!startIndex){ startIndex = arrayToSearch.length; } for (var i = startIndex - 1; i >= 0; i--) { var currentItem = arrayToSearch[i]; if (filterCallback(currentItem)){ return currentItem; } } }, inherits = 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 = inherits; if (extensions) extend(ChartElement.prototype, extensions); ChartElement.__super__ = parent.prototype; return ChartElement; }, noop = helpers.noop = function(){}, uid = helpers.uid = (function(){ var id=0; return function(){ return "chart-" + id++; }; })(), warn = helpers.warn = function(str){ //Method for warning of errors if (window.console && typeof window.console.warn == "function") console.warn(str); }, amd = helpers.amd = (typeof define == 'function' && define.amd), //-- Math methods isNumber = helpers.isNumber = function(n){ return !isNaN(parseFloat(n)) && isFinite(n); }, max = helpers.max = function(array){ return Math.max.apply( Math, array ); }, min = helpers.min = function(array){ return Math.min.apply( Math, array ); }, cap = helpers.cap = function(valueToCap,maxValue,minValue){ if(isNumber(maxValue)) { if( valueToCap > maxValue ) { return maxValue; } } else if(isNumber(minValue)){ if ( valueToCap < minValue ){ return minValue; } } return valueToCap; }, getDecimalPlaces = helpers.getDecimalPlaces = function(num){ if (num%1!==0 && isNumber(num)){ return num.toString().split(".")[1].length; } else { return 0; } }, toRadians = helpers.radians = function(degrees){ return degrees * (Math.PI/180); }, // Gets the angle from vertical upright to the point about a centre. getAngleFromPoint = 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.PI * 2 + Math.atan2(distanceFromYCenter, distanceFromXCenter); //If the segment is in the top left quadrant, we need to add another rotation to the angle if (distanceFromXCenter < 0 && distanceFromYCenter < 0){ angle += Math.PI2; } return { angle: angle, distance: radialDistanceFromCenter }; }, aliasPixel = helpers.aliasPixel = function(pixelWidth){ return (pixelWidth % 2 === 0) ? 0 : 0.5; }, splineCurve = 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 var d01=Math.sqrt(Math.pow(MiddlePoint.x-FirstPoint.x,2)+Math.pow(MiddlePoint.y-FirstPoint.y,2)), d12=Math.sqrt(Math.pow(AfterPoint.x-MiddlePoint.x,2)+Math.pow(AfterPoint.y-MiddlePoint.y,2)), fa=td01/(d01+d12),// scaling factor for triangle Ta fb=td12/(d01+d12); return { inner : { x : MiddlePoint.x-fa(AfterPoint.x-FirstPoint.x), y : MiddlePoint.y-fa(AfterPoint.y-FirstPoint.y) }, outer : { x: MiddlePoint.x+fb(AfterPoint.x-FirstPoint.x), y : MiddlePoint.y+fb(AfterPoint.y-FirstPoint.y) } }; }, calculateOrderOfMagnitude = helpers.calculateOrderOfMagnitude = function(val){ return Math.floor(Math.log(val) / Math.LN10); }, calculateScaleRange = helpers.calculateScaleRange = function(valuesArray, drawingSize, textSize, startFromZero, integersOnly){ //Set a minimum step of two - a point at the top of the graph, and a point at the base var minSteps = 2, maxSteps = Math.floor(drawingSize/(textSize 1.5)), skipFitting = (minSteps >= maxSteps); var maxValue = max(valuesArray), minValue = min(valuesArray); // We need some degree of seperation here to calculate the scales if all the values are the same // Adding/minusing 0.5 will give us a range of 1. if (maxValue === minValue){ maxValue += 0.5; // So we don't end up with a graph with a negative start value if we've said always start from zero if (minValue >= 0.5 && !startFromZero){ minValue -= 0.5; } else{ // Make up a whole number above the values maxValue += 0.5; } } var valueRange = Math.abs(maxValue - minValue), rangeOrderOfMagnitude = calculateOrderOfMagnitude(valueRange), graphMax = Math.ceil(maxValue / (1 * Math.pow(10, rangeOrderOfMagnitude))) * Math.pow(10, rangeOrderOfMagnitude), graphMin = (startFromZero) ? 0 : Math.floor(minValue / (1 * Math.pow(10, rangeOrderOfMagnitude))) * Math.pow(10, rangeOrderOfMagnitude), graphRange = graphMax - graphMin, stepValue = Math.pow(10, rangeOrderOfMagnitude), numberOfSteps = Math.round(graphRange / stepValue); //If we have more space on the graph we'll use it to give more definition to the data while((numberOfSteps > maxSteps \|\| (numberOfSteps * 2) < maxSteps) && !skipFitting) { if(numberOfSteps > maxSteps){ stepValue =2; numberOfSteps = Math.round(graphRange/stepValue); // Don't ever deal with a decimal number of steps - cancel fitting and just use the minimum number of steps. if (numberOfSteps % 1 !== 0){ skipFitting = true; } } //We can fit in double the amount of scale points on the scale else{ //If user has declared ints only, and the step value isn't a decimal if (integersOnly && rangeOrderOfMagnitude >= 0){ //If the user has said integers only, we need to check that making the scale more granular wouldn't make it a float if(stepValue/2 % 1 === 0){ stepValue /=2; numberOfSteps = Math.round(graphRange/stepValue); } //If it would make it a float break out of the loop else{ break; } } //If the scale doesn't have to be an int, make the scale more granular anyway. else{ stepValue /=2; numberOfSteps = Math.round(graphRange/stepValue); } } } if (skipFitting){ numberOfSteps = minSteps; stepValue = graphRange / numberOfSteps; } return { steps : numberOfSteps, stepValue : stepValue, min : graphMin, max : graphMin + (numberOfSteps stepValue) }; }, /* jshint ignore:start / // Blows up jshint errors based on the new Function constructor //Templating methods //Javascript micro templating by John Resig - source at http://ejohn.org/blog/javascript-micro-templating/ template = helpers.template = function(templateString, valuesObject){ // If templateString is function rather than string-template - call the function for valuesObject if(templateString instanceof Function){ return templateString(valuesObject); } var cache = {}; function tmpl(str, data){ // Figure out if we're getting a template, or if we need to // load the template - and be sure to cache the result. var fn = !/\W/.test(str) ? cache[str] = cache[str] : // Generate a reusable function that will serve as a template // generator (and which will be cached). new Function("obj", "var p=[],print=function(){p.push.apply(p,arguments);};" + // Introduce the data as local variables using with(){} "with(obj){p.push('" + // Convert the template into pure JavaScript str .replace(/[\r\t\n]/g, " ") .split("<%").join("\t") .replace(/((^\|%>)[^\t])'/g, "$1\r") .replace(/\t=(.?)%>/g, "',$1,'") .split("\t").join("');") .split("%>").join("p.push('") .split("\r").join("\\'") + "');}return p.join('');" ); // Provide some basic currying to the user return data ? fn( data ) : fn; } return tmpl(templateString,valuesObject); }, / jshint ignore:end / generateLabels = helpers.generateLabels = function(templateString,numberOfSteps,graphMin,stepValue){ var labelsArray = new Array(numberOfSteps); if (labelTemplateString){ each(labelsArray,function(val,index){ labelsArray[index] = template(templateString,{value: (graphMin + (stepValue(index+1)))}); }); } return labelsArray; }, //--Animation methods //Easing functions adapted from Robert Penner's easing equations //http://www.robertpenner.com/easing/ 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/ requestAnimFrame = helpers.requestAnimFrame = (function(){ return window.requestAnimationFrame \|\| window.webkitRequestAnimationFrame \|\| window.mozRequestAnimationFrame \|\| window.oRequestAnimationFrame \|\| window.msRequestAnimationFrame \|\| function(callback) { return window.setTimeout(callback, 1000 / 60); }; })(), cancelAnimFrame = helpers.cancelAnimFrame = (function(){ return window.cancelAnimationFrame \|\| window.webkitCancelAnimationFrame \|\| window.mozCancelAnimationFrame \|\| window.oCancelAnimationFrame \|\| window.msCancelAnimationFrame \|\| function(callback) { return window.clearTimeout(callback, 1000 / 60); }; })(), animationLoop = helpers.animationLoop = function(callback,totalSteps,easingString,onProgress,onComplete,chartInstance){ var currentStep = 0, easingFunction = easingEffects[easingString] \|\| easingEffects.linear; var animationFrame = function(){ currentStep++; var stepDecimal = currentStep/totalSteps; var easeDecimal = easingFunction(stepDecimal); callback.call(chartInstance,easeDecimal,stepDecimal, currentStep); onProgress.call(chartInstance,easeDecimal,stepDecimal); if (currentStep < totalSteps){ chartInstance.animationFrame = requestAnimFrame(animationFrame); } else{ onComplete.apply(chartInstance); } }; requestAnimFrame(animationFrame); }, //-- DOM methods getRelativePosition = helpers.getRelativePosition = function(evt){ var mouseX, mouseY; var e = evt.originalEvent \|\| evt, canvas = evt.currentTarget \|\| evt.srcElement, boundingRect = canvas.getBoundingClientRect(); if (e.touches){ mouseX = e.touches[0].clientX - boundingRect.left; mouseY = e.touches[0].clientY - boundingRect.top; } else{ mouseX = e.clientX - boundingRect.left; mouseY = e.clientY - boundingRect.top; } return { x : mouseX, y : mouseY }; }, addEvent = 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; } }, removeEvent = 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] = noop; } }, bindEvents = helpers.bindEvents = function(chartInstance, arrayOfEvents, handler){ // Create the events object if it's not already present if (!chartInstance.events) chartInstance.events = {}; each(arrayOfEvents,function(eventName){ chartInstance.events[eventName] = function(){ handler.apply(chartInstance, arguments); }; addEvent(chartInstance.chart.canvas,eventName,chartInstance.events[eventName]); }); }, unbindEvents = helpers.unbindEvents = function (chartInstance, arrayOfEvents) { each(arrayOfEvents, function(handler,eventName){ removeEvent(chartInstance.chart.canvas, eventName, handler); }); }, getMaximumWidth = helpers.getMaximumWidth = function(domNode){ var container = domNode.parentNode; // TODO = check cross browser stuff with this. return container.clientWidth; }, getMaximumHeight = helpers.getMaximumHeight = function(domNode){ var container = domNode.parentNode; // TODO = check cross browser stuff with this. return container.clientHeight; }, getMaximumSize = helpers.getMaximumSize = helpers.getMaximumWidth, // legacy support retinaScale = helpers.retinaScale = function(chart){ var ctx = chart.ctx, width = chart.canvas.width, height = chart.canvas.height; if (window.devicePixelRatio) { ctx.canvas.style.width = width + "px"; ctx.canvas.style.height = height + "px"; ctx.canvas.height = height * window.devicePixelRatio; ctx.canvas.width = width * window.devicePixelRatio; ctx.scale(window.devicePixelRatio, window.devicePixelRatio); } }, //-- Canvas methods clear = helpers.clear = function(chart){ chart.ctx.clearRect(0,0,chart.width,chart.height); }, fontString = helpers.fontString = function(pixelSize,fontStyle,fontFamily){ return fontStyle + " " + pixelSize+"px " + fontFamily; }, longestText = helpers.longestText = function(ctx,font,arrayOfStrings){ ctx.font = font; var longest = 0; each(arrayOfStrings,function(string){ var textWidth = ctx.measureText(string).width; longest = (textWidth > longest) ? textWidth : longest; }); return longest; }, drawRoundedRectangle = 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(); }; //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 = {}; Chart.Type = function(data,options,chart){ this.options = options; this.chart = chart; this.id = uid(); //Add the chart instance to the global namespace Chart.instances[this.id] = this; // Initialize is always called when a chart type is created // By default it is a no op, but it should be extended if (options.responsive){ this.resize(); } this.initialize.call(this,data); }; //Core methods that'll be a part of every chart type extend(Chart.Type.prototype,{ initialize : function(){return this;}, clear : function(){ clear(this.chart); return this; }, stop : function(){ // Stops any current animation loop occuring cancelAnimFrame(this.animationFrame); return this; }, resize : function(callback){ this.stop(); var canvas = this.chart.canvas, newWidth = getMaximumWidth(this.chart.canvas), newHeight = this.options.maintainAspectRatio ? newWidth / this.chart.aspectRatio : getMaximumHeight(this.chart.canvas); canvas.width = this.chart.width = newWidth; canvas.height = this.chart.height = newHeight; retinaScale(this.chart); if (typeof callback === "function"){ callback.apply(this, Array.prototype.slice.call(arguments, 1)); } return this; }, reflow : noop, render : function(reflow){ if (reflow){ this.reflow(); } if (this.options.animation && !reflow){ helpers.animationLoop( this.draw, this.options.animationSteps, this.options.animationEasing, this.options.onAnimationProgress, this.options.onAnimationComplete, this ); } else{ this.draw(); this.options.onAnimationComplete.call(this); } return this; }, generateLegend : function(){ return template(this.options.legendTemplate,this); }, destroy : function(){ this.clear(); unbindEvents(this, this.events); var canvas = this.chart.canvas; // Reset canvas height/width attributes starts a fresh with the canvas context canvas.width = this.chart.width; canvas.height = this.chart.height; // < IE9 doesn't support removeProperty if (canvas.style.removeProperty) { canvas.style.removeProperty('width'); canvas.style.removeProperty('height'); } else { canvas.style.removeAttribute('width'); canvas.style.removeAttribute('height'); } delete Chart.instances[this.id]; }, showTooltip : function(ChartElements, forceRedraw){ // Only redraw the chart if we've actually changed what we're hovering on. if (typeof this.activeElements === 'undefined') this.activeElements = []; var isChanged = (function(Elements){ var changed = false; if (Elements.length !== this.activeElements.length){ changed = true; return changed; } each(Elements, function(element, index){ if (element !== this.activeElements[index]){ changed = true; } }, this); return changed; }).call(this, ChartElements); if (!isChanged && !forceRedraw){ return; } else{ this.activeElements = ChartElements; } this.draw(); if(this.options.customTooltips){ this.options.customTooltips(false); } if (ChartElements.length > 0){ // If we have multiple datasets, show a MultiTooltip for all of the data points at that index if (this.datasets && this.datasets.length > 1) { var dataArray, dataIndex; for (var i = this.datasets.length - 1; i >= 0; i--) { dataArray = this.datasets[i].points \|\| this.datasets[i].bars \|\| this.datasets[i].segments; dataIndex = indexOf(dataArray, ChartElements[0]); if (dataIndex !== -1){ break; } } var tooltipLabels = [], tooltipColors = [], medianPosition = (function(index) { // Get all the points at that particular index var Elements = [], dataCollection, xPositions = [], yPositions = [], xMax, yMax, xMin, yMin; helpers.each(this.datasets, function(dataset){ dataCollection = dataset.points \|\| dataset.bars \|\| dataset.segments; if (dataCollection[dataIndex] && dataCollection[dataIndex].hasValue()){ Elements.push(dataCollection[dataIndex]); } }); helpers.each(Elements, function(element) { xPositions.push(element.x); yPositions.push(element.y); //Include any colour information about the element tooltipLabels.push(helpers.template(this.options.multiTooltipTemplate, element)); tooltipColors.push({ fill: element._saved.fillColor \|\| element.fillColor, stroke: element._saved.strokeColor \|\| element.strokeColor }); }, this); yMin = min(yPositions); yMax = max(yPositions); xMin = min(xPositions); xMax = max(xPositions); return { x: (xMin > this.chart.width/2) ? xMin : xMax, y: (yMin + yMax)/2 }; }).call(this, dataIndex); new Chart.MultiTooltip({ x: medianPosition.x, y: medianPosition.y, xPadding: this.options.tooltipXPadding, yPadding: this.options.tooltipYPadding, xOffset: this.options.tooltipXOffset, fillColor: this.options.tooltipFillColor, textColor: this.options.tooltipFontColor, fontFamily: this.options.tooltipFontFamily, fontStyle: this.options.tooltipFontStyle, fontSize: this.options.tooltipFontSize, titleTextColor: this.options.tooltipTitleFontColor, titleFontFamily: this.options.tooltipTitleFontFamily, titleFontStyle: this.options.tooltipTitleFontStyle, titleFontSize: this.options.tooltipTitleFontSize, cornerRadius: this.options.tooltipCornerRadius, labels: tooltipLabels, legendColors: tooltipColors, legendColorBackground : this.options.multiTooltipKeyBackground, title: ChartElements[0].label, chart: this.chart, ctx: this.chart.ctx, custom: this.options.customTooltips }).draw(); } else { each(ChartElements, function(Element) { var tooltipPosition = Element.tooltipPosition(); new Chart.Tooltip({ x: Math.round(tooltipPosition.x), y: Math.round(tooltipPosition.y), xPadding: this.options.tooltipXPadding, yPadding: this.options.tooltipYPadding, fillColor: this.options.tooltipFillColor, textColor: this.options.tooltipFontColor, fontFamily: this.options.tooltipFontFamily, fontStyle: this.options.tooltipFontStyle, fontSize: this.options.tooltipFontSize, caretHeight: this.options.tooltipCaretSize, cornerRadius: this.options.tooltipCornerRadius, text: template(this.options.tooltipTemplate, Element), chart: this.chart, custom: this.options.customTooltips }).draw(); }, this); } } return this; }, toBase64Image : function(){ return this.chart.canvas.toDataURL.apply(this.chart.canvas, arguments); } }); Chart.Type.extend = function(extensions){ var parent = this; var ChartType = function(){ return parent.apply(this,arguments); }; //Copy the prototype object of the this class ChartType.prototype = clone(parent.prototype); //Now overwrite some of the properties in the base class with the new extensions extend(ChartType.prototype, extensions); ChartType.extend = Chart.Type.extend; if (extensions.name \|\| parent.prototype.name){ var chartName = extensions.name \|\| parent.prototype.name; //Assign any potential default values of the new chart type //If none are defined, we'll use a clone of the chart type this is being extended from. //I.e. if we extend a line chart, we'll use the defaults from the line chart if our new chart //doesn't define some defaults of their own. var baseDefaults = (Chart.defaults[parent.prototype.name]) ? clone(Chart.defaults[parent.prototype.name]) : {}; Chart.defaults[chartName] = extend(baseDefaults,extensions.defaults); Chart.types[chartName] = ChartType; //Register this new chart type in the Chart prototype Chart.prototype[chartName] = function(data,options){ var config = merge(Chart.defaults.global, Chart.defaults[chartName], options \|\| {}); return new ChartType(data,config,this); }; } else{ warn("Name not provided for this chart, so it hasn't been registered"); } return parent; }; Chart.Element = function(configuration){ extend(this,configuration); this.initialize.apply(this,arguments); this.save(); }; extend(Chart.Element.prototype,{ initialize : function(){}, restore : function(props){ if (!props){ extend(this,this._saved); } else { each(props,function(key){ this[key] = this._saved[key]; },this); } return this; }, save : function(){ this._saved = clone(this); delete this._saved._saved; return this; }, update : function(newProps){ each(newProps,function(value,key){ this._saved[key] = this[key]; this[key] = value; },this); return this; }, transition : function(props,ease){ each(props,function(value,key){ this[key] = ((value - this._saved[key]) * ease) + this._saved[key]; },this); return this; }, tooltipPosition : function(){ return { x : this.x, y : this.y }; }, hasValue: function(){ return isNumber(this.value); } }); Chart.Element.extend = inherits; Chart.Point = Chart.Element.extend({ display: true, inRange: function(chartX,chartY){ var hitDetectionRange = this.hitDetectionRadius + this.radius; return ((Math.pow(chartX-this.x, 2)+Math.pow(chartY-this.y, 2)) < Math.pow(hitDetectionRange,2)); }, draw : function(){ if (this.display){ var ctx = this.ctx; ctx.beginPath(); ctx.arc(this.x, this.y, this.radius, 0, Math.PI2); ctx.closePath(); ctx.strokeStyle = this.strokeColor; ctx.lineWidth = this.strokeWidth; ctx.fillStyle = this.fillColor; ctx.fill(); ctx.stroke(); } //Quick debug for bezier curve splining //Highlights control points and the line between them. //Handy for dev - stripped in the min version. // ctx.save(); // ctx.fillStyle = "black"; // ctx.strokeStyle = "black" // ctx.beginPath(); // ctx.arc(this.controlPoints.inner.x,this.controlPoints.inner.y, 2, 0, Math.PI2); // ctx.fill(); // ctx.beginPath(); // ctx.arc(this.controlPoints.outer.x,this.controlPoints.outer.y, 2, 0, Math.PI2); // ctx.fill(); // ctx.moveTo(this.controlPoints.inner.x,this.controlPoints.inner.y); // ctx.lineTo(this.x, this.y); // ctx.lineTo(this.controlPoints.outer.x,this.controlPoints.outer.y); // ctx.stroke(); // ctx.restore(); } }); Chart.Arc = Chart.Element.extend({ inRange : function(chartX,chartY){ var pointRelativePosition = helpers.getAngleFromPoint(this, { x: chartX, y: chartY }); //Check if within the range of the open/close angle var betweenAngles = (pointRelativePosition.angle >= this.startAngle && pointRelativePosition.angle <= this.endAngle), withinRadius = (pointRelativePosition.distance >= this.innerRadius && pointRelativePosition.distance <= this.outerRadius); return (betweenAngles && withinRadius); //Ensure within the outside of the arc centre, but inside arc outer }, tooltipPosition : function(){ var centreAngle = this.startAngle + ((this.endAngle - this.startAngle) / 2), rangeFromCentre = (this.outerRadius - this.innerRadius) / 2 + this.innerRadius; return { x : this.x + (Math.cos(centreAngle) rangeFromCentre), y : this.y + (Math.sin(centreAngle) * rangeFromCentre) }; }, draw : function(animationPercent){ var easingDecimal = animationPercent \|\| 1; var ctx = this.ctx; ctx.beginPath(); ctx.arc(this.x, this.y, this.outerRadius, this.startAngle, this.endAngle); ctx.arc(this.x, this.y, this.innerRadius, this.endAngle, this.startAngle, true); ctx.closePath(); ctx.strokeStyle = this.strokeColor; ctx.lineWidth = this.strokeWidth; ctx.fillStyle = this.fillColor; ctx.fill(); ctx.lineJoin = 'bevel'; if (this.showStroke){ ctx.stroke(); } } }); Chart.Rectangle = Chart.Element.extend({ draw : function(){ var ctx = this.ctx, halfWidth = this.width/2, leftX = this.x - halfWidth, rightX = this.x + halfWidth, top = this.base - (this.base - this.y), halfStroke = this.strokeWidth / 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 (this.showStroke){ leftX += halfStroke; rightX -= halfStroke; top += halfStroke; } ctx.beginPath(); ctx.fillStyle = this.fillColor; ctx.strokeStyle = this.strokeColor; ctx.lineWidth = this.strokeWidth; // It'd be nice to keep this class totally generic to any rectangle // and simply specify which border to miss out. ctx.moveTo(leftX, this.base); ctx.lineTo(leftX, top); ctx.lineTo(rightX, top); ctx.lineTo(rightX, this.base); ctx.fill(); if (this.showStroke){ ctx.stroke(); } }, height : function(){ return this.base - this.y; }, inRange : function(chartX,chartY){ return (chartX >= this.x - this.width/2 && chartX <= this.x + this.width/2) && (chartY >= this.y && chartY <= this.base); } }); Chart.Tooltip = Chart.Element.extend({ draw : function(){ var ctx = this.chart.ctx; ctx.font = fontString(this.fontSize,this.fontStyle,this.fontFamily); this.xAlign = "center"; this.yAlign = "above"; //Distance between the actual element.y position and the start of the tooltip caret var caretPadding = this.caretPadding = 2; var tooltipWidth = ctx.measureText(this.text).width + 2this.xPadding, tooltipRectHeight = this.fontSize + 2this.yPadding, tooltipHeight = tooltipRectHeight + this.caretHeight + caretPadding; if (this.x + tooltipWidth/2 >this.chart.width){ this.xAlign = "left"; } else if (this.x - tooltipWidth/2 < 0){ this.xAlign = "right"; } if (this.y - tooltipHeight < 0){ this.yAlign = "below"; } var tooltipX = this.x - tooltipWidth/2, tooltipY = this.y - tooltipHeight; ctx.fillStyle = this.fillColor; // Custom Tooltips if(this.custom){ this.custom(this); } else{ switch(this.yAlign) { case "above": //Draw a caret above the x/y ctx.beginPath(); ctx.moveTo(this.x,this.y - caretPadding); ctx.lineTo(this.x + this.caretHeight, this.y - (caretPadding + this.caretHeight)); ctx.lineTo(this.x - this.caretHeight, this.y - (caretPadding + this.caretHeight)); ctx.closePath(); ctx.fill(); break; case "below": tooltipY = this.y + caretPadding + this.caretHeight; //Draw a caret below the x/y ctx.beginPath(); ctx.moveTo(this.x, this.y + caretPadding); ctx.lineTo(this.x + this.caretHeight, this.y + caretPadding + this.caretHeight); ctx.lineTo(this.x - this.caretHeight, this.y + caretPadding + this.caretHeight); ctx.closePath(); ctx.fill(); break; } switch(this.xAlign) { case "left": tooltipX = this.x - tooltipWidth + (this.cornerRadius + this.caretHeight); break; case "right": tooltipX = this.x - (this.cornerRadius + this.caretHeight); break; } drawRoundedRectangle(ctx,tooltipX,tooltipY,tooltipWidth,tooltipRectHeight,this.cornerRadius); ctx.fill(); ctx.fillStyle = this.textColor; ctx.textAlign = "center"; ctx.textBaseline = "middle"; ctx.fillText(this.text, tooltipX + tooltipWidth/2, tooltipY + tooltipRectHeight/2); } } }); Chart.MultiTooltip = Chart.Element.extend({ initialize : function(){ this.font = fontString(this.fontSize,this.fontStyle,this.fontFamily); this.titleFont = fontString(this.titleFontSize,this.titleFontStyle,this.titleFontFamily); this.height = (this.labels.length * this.fontSize) + ((this.labels.length-1) * (this.fontSize/2)) + (this.yPadding2) + this.titleFontSize 1.5; this.ctx.font = this.titleFont; var titleWidth = this.ctx.measureText(this.title).width, //Label has a legend square as well so account for this. labelWidth = longestText(this.ctx,this.font,this.labels) + this.fontSize + 3, longestTextWidth = max([labelWidth,titleWidth]); this.width = longestTextWidth + (this.xPadding2); var halfHeight = this.height/2; //Check to ensure the height will fit on the canvas if (this.y - halfHeight < 0 ){ this.y = halfHeight; } else if (this.y + halfHeight > this.chart.height){ this.y = this.chart.height - halfHeight; } //Decide whether to align left or right based on position on canvas if (this.x > this.chart.width/2){ this.x -= this.xOffset + this.width; } else { this.x += this.xOffset; } }, getLineHeight : function(index){ var baseLineHeight = this.y - (this.height/2) + this.yPadding, afterTitleIndex = index-1; //If the index is zero, we're getting the title if (index === 0){ return baseLineHeight + this.titleFontSize/2; } else{ return baseLineHeight + ((this.fontSize1.5afterTitleIndex) + this.fontSize/2) + this.titleFontSize 1.5; } }, draw : function(){ // Custom Tooltips if(this.custom){ this.custom(this); } else{ drawRoundedRectangle(this.ctx,this.x,this.y - this.height/2,this.width,this.height,this.cornerRadius); var ctx = this.ctx; ctx.fillStyle = this.fillColor; ctx.fill(); ctx.closePath(); ctx.textAlign = "left"; ctx.textBaseline = "middle"; ctx.fillStyle = this.titleTextColor; ctx.font = this.titleFont; ctx.fillText(this.title,this.x + this.xPadding, this.getLineHeight(0)); ctx.font = this.font; helpers.each(this.labels,function(label,index){ ctx.fillStyle = this.textColor; ctx.fillText(label,this.x + this.xPadding + this.fontSize + 3, this.getLineHeight(index + 1)); //A bit gnarly, but clearing this rectangle breaks when using explorercanvas (clears whole canvas) //ctx.clearRect(this.x + this.xPadding, this.getLineHeight(index + 1) - this.fontSize/2, this.fontSize, this.fontSize); //Instead we'll make a white filled block to put the legendColour palette over. ctx.fillStyle = this.legendColorBackground; ctx.fillRect(this.x + this.xPadding, this.getLineHeight(index + 1) - this.fontSize/2, this.fontSize, this.fontSize); ctx.fillStyle = this.legendColors[index].fill; ctx.fillRect(this.x + this.xPadding, this.getLineHeight(index + 1) - this.fontSize/2, this.fontSize, this.fontSize); },this); } } }); Chart.Scale = Chart.Element.extend({ initialize : function(){ this.fit(); }, buildYLabels : function(){ this.yLabels = []; var stepDecimalPlaces = getDecimalPlaces(this.stepValue); for (var i=0; i<=this.steps; i++){ this.yLabels.push(template(this.templateString,{value:(this.min + (i * this.stepValue)).toFixed(stepDecimalPlaces)})); } this.yLabelWidth = (this.display && this.showLabels) ? longestText(this.ctx,this.font,this.yLabels) : 0; }, addXLabel : function(label){ this.xLabels.push(label); this.valuesCount++; this.fit(); }, removeXLabel : function(){ this.xLabels.shift(); this.valuesCount--; this.fit(); }, // Fitting loop to rotate x Labels and figure out what fits there, and also calculate how many Y steps to use fit: function(){ // First we need the width of the yLabels, assuming the xLabels aren't rotated // To do that we need the base line at the top and base of the chart, assuming there is no x label rotation this.startPoint = (this.display) ? this.fontSize : 0; this.endPoint = (this.display) ? this.height - (this.fontSize * 1.5) - 5 : this.height; // -5 to pad labels // Apply padding settings to the start and end point. this.startPoint += this.padding; this.endPoint -= this.padding; // Cache the starting height, so can determine if we need to recalculate the scale yAxis var cachedHeight = this.endPoint - this.startPoint, cachedYLabelWidth; // Build the current yLabels so we have an idea of what size they'll be to start /* * This sets what is returned from calculateScaleRange as static properties of this class: * this.steps; this.stepValue; this.min; this.max; * / this.calculateYRange(cachedHeight); // With these properties set we can now build the array of yLabels // and also the width of the largest yLabel this.buildYLabels(); this.calculateXLabelRotation(); while((cachedHeight > this.endPoint - this.startPoint)){ cachedHeight = this.endPoint - this.startPoint; cachedYLabelWidth = this.yLabelWidth; this.calculateYRange(cachedHeight); this.buildYLabels(); // Only go through the xLabel loop again if the yLabel width has changed if (cachedYLabelWidth < this.yLabelWidth){ this.calculateXLabelRotation(); } } }, calculateXLabelRotation : function(){ //Get the width of each grid by calculating the difference //between x offsets between 0 and 1. this.ctx.font = this.font; var firstWidth = this.ctx.measureText(this.xLabels[0]).width, lastWidth = this.ctx.measureText(this.xLabels[this.xLabels.length - 1]).width, firstRotated, lastRotated; this.xScalePaddingRight = lastWidth/2 + 3; this.xScalePaddingLeft = (firstWidth/2 > this.yLabelWidth + 10) ? firstWidth/2 : this.yLabelWidth + 10; this.xLabelRotation = 0; if (this.display){ var originalLabelWidth = longestText(this.ctx,this.font,this.xLabels), cosRotation, firstRotatedWidth; this.xLabelWidth = originalLabelWidth; //Allow 3 pixels x2 padding either side for label readability var xGridWidth = Math.floor(this.calculateX(1) - this.calculateX(0)) - 6; //Max label rotate should be 90 - also act as a loop counter while ((this.xLabelWidth > xGridWidth && this.xLabelRotation === 0) \|\| (this.xLabelWidth > xGridWidth && this.xLabelRotation <= 90 && this.xLabelRotation > 0)){ cosRotation = Math.cos(toRadians(this.xLabelRotation)); firstRotated = cosRotation firstWidth; lastRotated = cosRotation * lastWidth; // We're right aligning the text now. if (firstRotated + this.fontSize / 2 > this.yLabelWidth + 8){ this.xScalePaddingLeft = firstRotated + this.fontSize / 2; } this.xScalePaddingRight = this.fontSize/2; this.xLabelRotation++; this.xLabelWidth = cosRotation * originalLabelWidth; } if (this.xLabelRotation > 0){ this.endPoint -= Math.sin(toRadians(this.xLabelRotation))originalLabelWidth + 3; } } else{ this.xLabelWidth = 0; this.xScalePaddingRight = this.padding; this.xScalePaddingLeft = this.padding; } }, // Needs to be overidden in each Chart type // Otherwise we need to pass all the data into the scale class calculateYRange: noop, drawingArea: function(){ return this.startPoint - this.endPoint; }, calculateY : function(value){ var scalingFactor = this.drawingArea() / (this.min - this.max); return this.endPoint - (scalingFactor (value - this.min)); }, calculateX : function(index){ var isRotated = (this.xLabelRotation > 0), // innerWidth = (this.offsetGridLines) ? this.width - offsetLeft - this.padding : this.width - (offsetLeft + halfLabelWidth * 2) - this.padding, innerWidth = this.width - (this.xScalePaddingLeft + this.xScalePaddingRight), valueWidth = innerWidth/Math.max((this.valuesCount - ((this.offsetGridLines) ? 0 : 1)), 1), valueOffset = (valueWidth * index) + this.xScalePaddingLeft; if (this.offsetGridLines){ valueOffset += (valueWidth/2); } return Math.round(valueOffset); }, update : function(newProps){ helpers.extend(this, newProps); this.fit(); }, draw : function(){ var ctx = this.ctx, yLabelGap = (this.endPoint - this.startPoint) / this.steps, xStart = Math.round(this.xScalePaddingLeft); if (this.display){ ctx.fillStyle = this.textColor; ctx.font = this.font; each(this.yLabels,function(labelString,index){ var yLabelCenter = this.endPoint - (yLabelGap * index), linePositionY = Math.round(yLabelCenter), drawHorizontalLine = this.showHorizontalLines; ctx.textAlign = "right"; ctx.textBaseline = "middle"; if (this.showLabels){ ctx.fillText(labelString,xStart - 10,yLabelCenter); } // This is X axis, so draw it if (index === 0 && !drawHorizontalLine){ drawHorizontalLine = true; } if (drawHorizontalLine){ ctx.beginPath(); } if (index > 0){ // This is a grid line in the centre, so drop that ctx.lineWidth = this.gridLineWidth; ctx.strokeStyle = this.gridLineColor; } else { // This is the first line on the scale ctx.lineWidth = this.lineWidth; ctx.strokeStyle = this.lineColor; } linePositionY += helpers.aliasPixel(ctx.lineWidth); if(drawHorizontalLine){ ctx.moveTo(xStart, linePositionY); ctx.lineTo(this.width, linePositionY); ctx.stroke(); ctx.closePath(); } ctx.lineWidth = this.lineWidth; ctx.strokeStyle = this.lineColor; ctx.beginPath(); ctx.moveTo(xStart - 5, linePositionY); ctx.lineTo(xStart, linePositionY); ctx.stroke(); ctx.closePath(); },this); each(this.xLabels,function(label,index){ var xPos = this.calculateX(index) + aliasPixel(this.lineWidth), // Check to see if line/bar here and decide where to place the line linePos = this.calculateX(index - (this.offsetGridLines ? 0.5 : 0)) + aliasPixel(this.lineWidth), isRotated = (this.xLabelRotation > 0), drawVerticalLine = this.showVerticalLines; // This is Y axis, so draw it if (index === 0 && !drawVerticalLine){ drawVerticalLine = true; } if (drawVerticalLine){ ctx.beginPath(); } if (index > 0){ // This is a grid line in the centre, so drop that ctx.lineWidth = this.gridLineWidth; ctx.strokeStyle = this.gridLineColor; } else { // This is the first line on the scale ctx.lineWidth = this.lineWidth; ctx.strokeStyle = this.lineColor; } if (drawVerticalLine){ ctx.moveTo(linePos,this.endPoint); ctx.lineTo(linePos,this.startPoint - 3); ctx.stroke(); ctx.closePath(); } ctx.lineWidth = this.lineWidth; ctx.strokeStyle = this.lineColor; // Small lines at the bottom of the base grid line ctx.beginPath(); ctx.moveTo(linePos,this.endPoint); ctx.lineTo(linePos,this.endPoint + 5); ctx.stroke(); ctx.closePath(); ctx.save(); ctx.translate(xPos,(isRotated) ? this.endPoint + 12 : this.endPoint + 8); ctx.rotate(toRadians(this.xLabelRotation)-1); ctx.font = this.font; ctx.textAlign = (isRotated) ? "right" : "center"; ctx.textBaseline = (isRotated) ? "middle" : "top"; ctx.fillText(label, 0, 0); ctx.restore(); },this); } } }); Chart.RadialScale = Chart.Element.extend({ initialize: function(){ this.size = min([this.height, this.width]); this.drawingArea = (this.display) ? (this.size/2) - (this.fontSize/2 + this.backdropPaddingY) : (this.size/2); }, calculateCenterOffset: function(value){ // Take into account half font size + the yPadding of the top value var scalingFactor = this.drawingArea / (this.max - this.min); return (value - this.min) scalingFactor; }, update : function(){ if (!this.lineArc){ this.setScaleSize(); } else { this.drawingArea = (this.display) ? (this.size/2) - (this.fontSize/2 + this.backdropPaddingY) : (this.size/2); } this.buildYLabels(); }, buildYLabels: function(){ this.yLabels = []; var stepDecimalPlaces = getDecimalPlaces(this.stepValue); for (var i=0; i<=this.steps; i++){ this.yLabels.push(template(this.templateString,{value:(this.min + (i * this.stepValue)).toFixed(stepDecimalPlaces)})); } }, getCircumference : function(){ return ((Math.PI2) / this.valuesCount); }, setScaleSize: 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 / // 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 = min([(this.height/2 - this.pointLabelFontSize - 5), this.width/2]), pointPosition, i, textWidth, halfTextWidth, furthestRight = this.width, furthestRightIndex, furthestRightAngle, furthestLeft = 0, furthestLeftIndex, furthestLeftAngle, xProtrusionLeft, xProtrusionRight, radiusReductionRight, radiusReductionLeft, maxWidthRadius; this.ctx.font = fontString(this.pointLabelFontSize,this.pointLabelFontStyle,this.pointLabelFontFamily); for (i=0;i<this.valuesCount;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(template(this.templateString, { value: this.labels[i] })).width + 5; if (i === 0 \|\| i === this.valuesCount/2){ // If we're at index zero, or exactly the middle, 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 (i < this.valuesCount/2) { // Less than half the values means we'll left align the text if (pointPosition.x + textWidth > furthestRight) { furthestRight = pointPosition.x + textWidth; furthestRightIndex = i; } } else if (i > this.valuesCount/2){ // 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 = (isNumber(radiusReductionRight)) ? radiusReductionRight : 0; radiusReductionLeft = (isNumber(radiusReductionLeft)) ? radiusReductionLeft : 0; this.drawingArea = largestPossibleRadius - (radiusReductionLeft + radiusReductionRight)/2; //this.drawingArea = min([maxWidthRadius, (this.height - (2 (this.pointLabelFontSize + 5)))/2]) this.setCenterPoint(radiusReductionLeft, radiusReductionRight); }, setCenterPoint: function(leftMovement, rightMovement){ var maxRight = this.width - rightMovement - this.drawingArea, maxLeft = leftMovement + this.drawingArea; this.xCenter = (maxLeft + maxRight)/2; // Always vertically in the centre as the text height doesn't change this.yCenter = (this.height/2); }, getIndexAngle : function(index){ var angleMultiplier = (Math.PI * 2) / this.valuesCount; // Start from the top instead of right, so remove a quarter of the circle return index * angleMultiplier - (Math.PI/2); }, getPointPosition : function(index, distanceFromCenter){ var thisAngle = this.getIndexAngle(index); return { x : (Math.cos(thisAngle) * distanceFromCenter) + this.xCenter, y : (Math.sin(thisAngle) * distanceFromCenter) + this.yCenter }; }, draw: function(){ if (this.display){ var ctx = this.ctx; each(this.yLabels, function(label, index){ // Don't draw a centre value if (index > 0){ var yCenterOffset = index * (this.drawingArea/this.steps), yHeight = this.yCenter - yCenterOffset, pointPosition; // Draw circular lines around the scale if (this.lineWidth > 0){ ctx.strokeStyle = this.lineColor; ctx.lineWidth = this.lineWidth; if(this.lineArc){ ctx.beginPath(); ctx.arc(this.xCenter, this.yCenter, yCenterOffset, 0, Math.PI2); ctx.closePath(); ctx.stroke(); } else{ ctx.beginPath(); for (var i=0;i<this.valuesCount;i++) { pointPosition = this.getPointPosition(i, this.calculateCenterOffset(this.min + (index this.stepValue))); if (i === 0){ ctx.moveTo(pointPosition.x, pointPosition.y); } else { ctx.lineTo(pointPosition.x, pointPosition.y); } } ctx.closePath(); ctx.stroke(); } } if(this.showLabels){ ctx.font = fontString(this.fontSize,this.fontStyle,this.fontFamily); if (this.showLabelBackdrop){ var labelWidth = ctx.measureText(label).width; ctx.fillStyle = this.backdropColor; ctx.fillRect( this.xCenter - labelWidth/2 - this.backdropPaddingX, yHeight - this.fontSize/2 - this.backdropPaddingY, labelWidth + this.backdropPaddingX2, this.fontSize + this.backdropPaddingY2 ); } ctx.textAlign = 'center'; ctx.textBaseline = "middle"; ctx.fillStyle = this.fontColor; ctx.fillText(label, this.xCenter, yHeight); } } }, this); if (!this.lineArc){ ctx.lineWidth = this.angleLineWidth; ctx.strokeStyle = this.angleLineColor; for (var i = this.valuesCount - 1; i >= 0; i--) { if (this.angleLineWidth > 0){ var outerPosition = this.getPointPosition(i, this.calculateCenterOffset(this.max)); ctx.beginPath(); ctx.moveTo(this.xCenter, this.yCenter); ctx.lineTo(outerPosition.x, outerPosition.y); ctx.stroke(); ctx.closePath(); } // Extra 3px out for some label spacing var pointLabelPosition = this.getPointPosition(i, this.calculateCenterOffset(this.max) + 5); ctx.font = fontString(this.pointLabelFontSize,this.pointLabelFontStyle,this.pointLabelFontFamily); ctx.fillStyle = this.pointLabelFontColor; var labelsCount = this.labels.length, halfLabelsCount = this.labels.length/2, quarterLabelsCount = halfLabelsCount/2, upperHalf = (i < quarterLabelsCount \|\| i > labelsCount - quarterLabelsCount), exactQuarter = (i === quarterLabelsCount \|\| i === labelsCount - quarterLabelsCount); if (i === 0){ ctx.textAlign = 'center'; } else if(i === halfLabelsCount){ ctx.textAlign = 'center'; } else if (i < halfLabelsCount){ ctx.textAlign = 'left'; } else { ctx.textAlign = 'right'; } // Set the correct text baseline based on outer positioning if (exactQuarter){ ctx.textBaseline = 'middle'; } else if (upperHalf){ ctx.textBaseline = 'bottom'; } else { ctx.textBaseline = 'top'; } ctx.fillText(this.labels[i], pointLabelPosition.x, pointLabelPosition.y); } } } } }); // Attach global event to resize each chart instance when the browser resizes helpers.addEvent(window, "resize", (function(){ // Basic debounce of resize function so it doesn't hurt performance when resizing browser. var timeout; return function(){ clearTimeout(timeout); timeout = setTimeout(function(){ each(Chart.instances,function(instance){ // If the responsive flag is set in the chart instance config // Cascade the resize event down to the chart. if (instance.options.responsive){ instance.resize(instance.render, true); } }); }, 50); }; })()); if (amd) { define(function(){ return Chart; }); } else if (typeof module === 'object' && module.exports) { module.exports = Chart; } root.Chart = Chart; Chart.noConflict = function(){ root.Chart = previous; return Chart; }; }).call(this); (function(){ "use strict"; var root = this, Chart = root.Chart, helpers = Chart.helpers; var defaultConfig = { //Boolean - Whether the scale should start at zero, or an order of magnitude down from the lowest value scaleBeginAtZero : true, //Boolean - Whether grid lines are shown across the chart scaleShowGridLines : true, //String - Colour of the grid lines scaleGridLineColor : "rgba(0,0,0,.05)", //Number - Width of the grid lines scaleGridLineWidth : 1, //Boolean - Whether to show horizontal lines (except X axis) scaleShowHorizontalLines: true, //Boolean - Whether to show vertical lines (except Y axis) scaleShowVerticalLines: true, //Boolean - If there is a stroke on each bar barShowStroke : true, //Number - Pixel width of the bar stroke barStrokeWidth : 2, //Number - Spacing between each of the X value sets barValueSpacing : 5, //Number - Spacing between data sets within X values barDatasetSpacing : 1, //String - A legend template legendTemplate : "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i=0; i<datasets.length; i++){%><li><span style=\"background-color:<%=datasets[i].fillColor%>\"></span><%if(datasets[i].label){%><%=datasets[i].label%><%}%></li><%}%></ul>" }; Chart.Type.extend({ name: "Bar", defaults : defaultConfig, initialize: function(data){ //Expose options as a scope variable here so we can access it in the ScaleClass var options = this.options; this.ScaleClass = Chart.Scale.extend({ offsetGridLines : true, calculateBarX : function(datasetCount, datasetIndex, barIndex){ //Reusable method for calculating the xPosition of a given bar based on datasetIndex & width of the bar var xWidth = this.calculateBaseWidth(), xAbsolute = this.calculateX(barIndex) - (xWidth/2), barWidth = this.calculateBarWidth(datasetCount); return xAbsolute + (barWidth * datasetIndex) + (datasetIndex * options.barDatasetSpacing) + barWidth/2; }, calculateBaseWidth : function(){ return (this.calculateX(1) - this.calculateX(0)) - (2options.barValueSpacing); }, calculateBarWidth : function(datasetCount){ //The padding between datasets is to the right of each bar, providing that there are more than 1 dataset var baseWidth = this.calculateBaseWidth() - ((datasetCount - 1) options.barDatasetSpacing); return (baseWidth / datasetCount); } }); this.datasets = []; //Set up tooltip events on the chart if (this.options.showTooltips){ helpers.bindEvents(this, this.options.tooltipEvents, function(evt){ var activeBars = (evt.type !== 'mouseout') ? this.getBarsAtEvent(evt) : []; this.eachBars(function(bar){ bar.restore(['fillColor', 'strokeColor']); }); helpers.each(activeBars, function(activeBar){ activeBar.fillColor = activeBar.highlightFill; activeBar.strokeColor = activeBar.highlightStroke; }); this.showTooltip(activeBars); }); } //Declare the extension of the default point, to cater for the options passed in to the constructor this.BarClass = Chart.Rectangle.extend({ strokeWidth : this.options.barStrokeWidth, showStroke : this.options.barShowStroke, ctx : this.chart.ctx }); //Iterate through each of the datasets, and build this into a property of the chart helpers.each(data.datasets,function(dataset,datasetIndex){ var datasetObject = { label : dataset.label \|\| null, fillColor : dataset.fillColor, strokeColor : dataset.strokeColor, bars : [] }; this.datasets.push(datasetObject); helpers.each(dataset.data,function(dataPoint,index){ //Add a new point for each piece of data, passing any required data to draw. datasetObject.bars.push(new this.BarClass({ value : dataPoint, label : data.labels[index], datasetLabel: dataset.label, strokeColor : dataset.strokeColor, fillColor : dataset.fillColor, highlightFill : dataset.highlightFill \|\| dataset.fillColor, highlightStroke : dataset.highlightStroke \|\| dataset.strokeColor })); },this); },this); this.buildScale(data.labels); this.BarClass.prototype.base = this.scale.endPoint; this.eachBars(function(bar, index, datasetIndex){ helpers.extend(bar, { width : this.scale.calculateBarWidth(this.datasets.length), x: this.scale.calculateBarX(this.datasets.length, datasetIndex, index), y: this.scale.endPoint }); bar.save(); }, this); this.render(); }, update : function(){ this.scale.update(); // Reset any highlight colours before updating. helpers.each(this.activeElements, function(activeElement){ activeElement.restore(['fillColor', 'strokeColor']); }); this.eachBars(function(bar){ bar.save(); }); this.render(); }, eachBars : function(callback){ helpers.each(this.datasets,function(dataset, datasetIndex){ helpers.each(dataset.bars, callback, this, datasetIndex); },this); }, getBarsAtEvent : function(e){ var barsArray = [], eventPosition = helpers.getRelativePosition(e), datasetIterator = function(dataset){ barsArray.push(dataset.bars[barIndex]); }, barIndex; for (var datasetIndex = 0; datasetIndex < this.datasets.length; datasetIndex++) { for (barIndex = 0; barIndex < this.datasets[datasetIndex].bars.length; barIndex++) { if (this.datasets[datasetIndex].bars[barIndex].inRange(eventPosition.x,eventPosition.y)){ helpers.each(this.datasets, datasetIterator); return barsArray; } } } return barsArray; }, buildScale : function(labels){ var self = this; var dataTotal = function(){ var values = []; self.eachBars(function(bar){ values.push(bar.value); }); return values; }; var scaleOptions = { templateString : this.options.scaleLabel, height : this.chart.height, width : this.chart.width, ctx : this.chart.ctx, textColor : this.options.scaleFontColor, fontSize : this.options.scaleFontSize, fontStyle : this.options.scaleFontStyle, fontFamily : this.options.scaleFontFamily, valuesCount : labels.length, beginAtZero : this.options.scaleBeginAtZero, integersOnly : this.options.scaleIntegersOnly, calculateYRange: function(currentHeight){ var updatedRanges = helpers.calculateScaleRange( dataTotal(), currentHeight, this.fontSize, this.beginAtZero, this.integersOnly ); helpers.extend(this, updatedRanges); }, xLabels : labels, font : helpers.fontString(this.options.scaleFontSize, this.options.scaleFontStyle, this.options.scaleFontFamily), lineWidth : this.options.scaleLineWidth, lineColor : this.options.scaleLineColor, showHorizontalLines : this.options.scaleShowHorizontalLines, showVerticalLines : this.options.scaleShowVerticalLines, gridLineWidth : (this.options.scaleShowGridLines) ? this.options.scaleGridLineWidth : 0, gridLineColor : (this.options.scaleShowGridLines) ? this.options.scaleGridLineColor : "rgba(0,0,0,0)", padding : (this.options.showScale) ? 0 : (this.options.barShowStroke) ? this.options.barStrokeWidth : 0, showLabels : this.options.scaleShowLabels, display : this.options.showScale }; if (this.options.scaleOverride){ helpers.extend(scaleOptions, { calculateYRange: helpers.noop, steps: this.options.scaleSteps, stepValue: this.options.scaleStepWidth, min: this.options.scaleStartValue, max: this.options.scaleStartValue + (this.options.scaleSteps * this.options.scaleStepWidth) }); } this.scale = new this.ScaleClass(scaleOptions); }, addData : function(valuesArray,label){ //Map the values array for each of the datasets helpers.each(valuesArray,function(value,datasetIndex){ //Add a new point for each piece of data, passing any required data to draw. this.datasets[datasetIndex].bars.push(new this.BarClass({ value : value, label : label, x: this.scale.calculateBarX(this.datasets.length, datasetIndex, this.scale.valuesCount+1), y: this.scale.endPoint, width : this.scale.calculateBarWidth(this.datasets.length), base : this.scale.endPoint, strokeColor : this.datasets[datasetIndex].strokeColor, fillColor : this.datasets[datasetIndex].fillColor })); },this); this.scale.addXLabel(label); //Then re-render the chart. this.update(); }, removeData : function(){ this.scale.removeXLabel(); //Then re-render the chart. helpers.each(this.datasets,function(dataset){ dataset.bars.shift(); },this); this.update(); }, reflow : function(){ helpers.extend(this.BarClass.prototype,{ y: this.scale.endPoint, base : this.scale.endPoint }); var newScaleProps = helpers.extend({ height : this.chart.height, width : this.chart.width }); this.scale.update(newScaleProps); }, draw : function(ease){ var easingDecimal = ease \|\| 1; this.clear(); var ctx = this.chart.ctx; this.scale.draw(easingDecimal); //Draw all the bars for each dataset helpers.each(this.datasets,function(dataset,datasetIndex){ helpers.each(dataset.bars,function(bar,index){ if (bar.hasValue()){ bar.base = this.scale.endPoint; //Transition then draw bar.transition({ x : this.scale.calculateBarX(this.datasets.length, datasetIndex, index), y : this.scale.calculateY(bar.value), width : this.scale.calculateBarWidth(this.datasets.length) }, easingDecimal).draw(); } },this); },this); } }); }).call(this); (function(){ "use strict"; var root = this, Chart = root.Chart, //Cache a local reference to Chart.helpers helpers = Chart.helpers; var defaultConfig = { //Boolean - Whether we should show a stroke on each segment segmentShowStroke : true, //String - The colour of each segment stroke segmentStrokeColor : "#fff", //Number - The width of each segment stroke segmentStrokeWidth : 2, //The percentage of the chart that we cut out of the middle. percentageInnerCutout : 50, //Number - Amount of animation steps animationSteps : 100, //String - Animation easing effect animationEasing : "easeOutBounce", //Boolean - Whether we animate the rotation of the Doughnut animateRotate : true, //Boolean - Whether we animate scaling the Doughnut from the centre animateScale : false, //String - A legend template legendTemplate : "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i=0; i<segments.length; i++){%><li><span style=\"background-color:<%=segments[i].fillColor%>\"></span><%if(segments[i].label){%><%=segments[i].label%><%}%></li><%}%></ul>" }; Chart.Type.extend({ //Passing in a name registers this chart in the Chart namespace name: "Doughnut", //Providing a defaults will also register the deafults in the chart namespace defaults : defaultConfig, //Initialize is fired when the chart is initialized - Data is passed in as a parameter //Config is automatically merged by the core of Chart.js, and is available at this.options initialize: function(data){ //Declare segments as a static property to prevent inheriting across the Chart type prototype this.segments = []; this.outerRadius = (helpers.min([this.chart.width,this.chart.height]) - this.options.segmentStrokeWidth/2)/2; this.SegmentArc = Chart.Arc.extend({ ctx : this.chart.ctx, x : this.chart.width/2, y : this.chart.height/2 }); //Set up tooltip events on the chart if (this.options.showTooltips){ helpers.bindEvents(this, this.options.tooltipEvents, function(evt){ var activeSegments = (evt.type !== 'mouseout') ? this.getSegmentsAtEvent(evt) : []; helpers.each(this.segments,function(segment){ segment.restore(["fillColor"]); }); helpers.each(activeSegments,function(activeSegment){ activeSegment.fillColor = activeSegment.highlightColor; }); this.showTooltip(activeSegments); }); } this.calculateTotal(data); helpers.each(data,function(datapoint, index){ this.addData(datapoint, index, true); },this); this.render(); }, getSegmentsAtEvent : function(e){ var segmentsArray = []; var location = helpers.getRelativePosition(e); helpers.each(this.segments,function(segment){ if (segment.inRange(location.x,location.y)) segmentsArray.push(segment); },this); return segmentsArray; }, addData : function(segment, atIndex, silent){ var index = atIndex \|\| this.segments.length; this.segments.splice(index, 0, new this.SegmentArc({ value : segment.value, outerRadius : (this.options.animateScale) ? 0 : this.outerRadius, innerRadius : (this.options.animateScale) ? 0 : (this.outerRadius/100) * this.options.percentageInnerCutout, fillColor : segment.color, highlightColor : segment.highlight \|\| segment.color, showStroke : this.options.segmentShowStroke, strokeWidth : this.options.segmentStrokeWidth, strokeColor : this.options.segmentStrokeColor, startAngle : Math.PI * 1.5, circumference : (this.options.animateRotate) ? 0 : this.calculateCircumference(segment.value), label : segment.label })); if (!silent){ this.reflow(); this.update(); } }, calculateCircumference : function(value){ return (Math.PI2)(Math.abs(value) / this.total); }, calculateTotal : function(data){ this.total = 0; helpers.each(data,function(segment){ this.total += Math.abs(segment.value); },this); }, update : function(){ this.calculateTotal(this.segments); // Reset any highlight colours before updating. helpers.each(this.activeElements, function(activeElement){ activeElement.restore(['fillColor']); }); helpers.each(this.segments,function(segment){ segment.save(); }); this.render(); }, removeData: function(atIndex){ var indexToDelete = (helpers.isNumber(atIndex)) ? atIndex : this.segments.length-1; this.segments.splice(indexToDelete, 1); this.reflow(); this.update(); }, reflow : function(){ helpers.extend(this.SegmentArc.prototype,{ x : this.chart.width/2, y : this.chart.height/2 }); this.outerRadius = (helpers.min([this.chart.width,this.chart.height]) - this.options.segmentStrokeWidth/2)/2; helpers.each(this.segments, function(segment){ segment.update({ outerRadius : this.outerRadius, innerRadius : (this.outerRadius/100) * this.options.percentageInnerCutout }); }, this); }, draw : function(easeDecimal){ var animDecimal = (easeDecimal) ? easeDecimal : 1; this.clear(); helpers.each(this.segments,function(segment,index){ segment.transition({ circumference : this.calculateCircumference(segment.value), outerRadius : this.outerRadius, innerRadius : (this.outerRadius/100) * this.options.percentageInnerCutout },animDecimal); segment.endAngle = segment.startAngle + segment.circumference; segment.draw(); if (index === 0){ segment.startAngle = Math.PI * 1.5; } //Check to see if it's the last segment, if not get the next and update the start angle if (index < this.segments.length-1){ this.segments[index+1].startAngle = segment.endAngle; } },this); } }); Chart.types.Doughnut.extend({ name : "Pie", defaults : helpers.merge(defaultConfig,{percentageInnerCutout : 0}) }); }).call(this); (function(){ "use strict"; var root = this, Chart = root.Chart, helpers = Chart.helpers; var defaultConfig = { ///Boolean - Whether grid lines are shown across the chart scaleShowGridLines : true, //String - Colour of the grid lines scaleGridLineColor : "rgba(0,0,0,.05)", //Number - Width of the grid lines scaleGridLineWidth : 1, //Boolean - Whether to show horizontal lines (except X axis) scaleShowHorizontalLines: true, //Boolean - Whether to show vertical lines (except Y axis) scaleShowVerticalLines: true, //Boolean - Whether the line is curved between points bezierCurve : true, //Number - Tension of the bezier curve between points bezierCurveTension : 0.4, //Boolean - Whether to show a dot for each point pointDot : true, //Number - Radius of each point dot in pixels pointDotRadius : 4, //Number - Pixel width of point dot stroke pointDotStrokeWidth : 1, //Number - amount extra to add to the radius to cater for hit detection outside the drawn point pointHitDetectionRadius : 20, //Boolean - Whether to show a stroke for datasets datasetStroke : true, //Number - Pixel width of dataset stroke datasetStrokeWidth : 2, //Boolean - Whether to fill the dataset with a colour datasetFill : true, //String - A legend template legendTemplate : "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i=0; i<datasets.length; i++){%><li><span style=\"background-color:<%=datasets[i].strokeColor%>\"></span><%if(datasets[i].label){%><%=datasets[i].label%><%}%></li><%}%></ul>" }; Chart.Type.extend({ name: "Line", defaults : defaultConfig, initialize: function(data){ //Declare the extension of the default point, to cater for the options passed in to the constructor this.PointClass = Chart.Point.extend({ strokeWidth : this.options.pointDotStrokeWidth, radius : this.options.pointDotRadius, display: this.options.pointDot, hitDetectionRadius : this.options.pointHitDetectionRadius, ctx : this.chart.ctx, inRange : function(mouseX){ return (Math.pow(mouseX-this.x, 2) < Math.pow(this.radius + this.hitDetectionRadius,2)); } }); this.datasets = []; //Set up tooltip events on the chart if (this.options.showTooltips){ helpers.bindEvents(this, this.options.tooltipEvents, function(evt){ var activePoints = (evt.type !== 'mouseout') ? this.getPointsAtEvent(evt) : []; this.eachPoints(function(point){ point.restore(['fillColor', 'strokeColor']); }); helpers.each(activePoints, function(activePoint){ activePoint.fillColor = activePoint.highlightFill; activePoint.strokeColor = activePoint.highlightStroke; }); this.showTooltip(activePoints); }); } //Iterate through each of the datasets, and build this into a property of the chart helpers.each(data.datasets,function(dataset){ var datasetObject = { label : dataset.label \|\| null, fillColor : dataset.fillColor, strokeColor : dataset.strokeColor, pointColor : dataset.pointColor, pointStrokeColor : dataset.pointStrokeColor, points : [] }; this.datasets.push(datasetObject); helpers.each(dataset.data,function(dataPoint,index){ //Add a new point for each piece of data, passing any required data to draw. datasetObject.points.push(new this.PointClass({ value : dataPoint, label : data.labels[index], datasetLabel: dataset.label, strokeColor : dataset.pointStrokeColor, fillColor : dataset.pointColor, highlightFill : dataset.pointHighlightFill \|\| dataset.pointColor, highlightStroke : dataset.pointHighlightStroke \|\| dataset.pointStrokeColor })); },this); this.buildScale(data.labels); this.eachPoints(function(point, index){ helpers.extend(point, { x: this.scale.calculateX(index), y: this.scale.endPoint }); point.save(); }, this); },this); this.render(); }, update : function(){ this.scale.update(); // Reset any highlight colours before updating. helpers.each(this.activeElements, function(activeElement){ activeElement.restore(['fillColor', 'strokeColor']); }); this.eachPoints(function(point){ point.save(); }); this.render(); }, eachPoints : function(callback){ helpers.each(this.datasets,function(dataset){ helpers.each(dataset.points,callback,this); },this); }, getPointsAtEvent : function(e){ var pointsArray = [], eventPosition = helpers.getRelativePosition(e); helpers.each(this.datasets,function(dataset){ helpers.each(dataset.points,function(point){ if (point.inRange(eventPosition.x,eventPosition.y)) pointsArray.push(point); }); },this); return pointsArray; }, buildScale : function(labels){ var self = this; var dataTotal = function(){ var values = []; self.eachPoints(function(point){ values.push(point.value); }); return values; }; var scaleOptions = { templateString : this.options.scaleLabel, height : this.chart.height, width : this.chart.width, ctx : this.chart.ctx, textColor : this.options.scaleFontColor, fontSize : this.options.scaleFontSize, fontStyle : this.options.scaleFontStyle, fontFamily : this.options.scaleFontFamily, valuesCount : labels.length, beginAtZero : this.options.scaleBeginAtZero, integersOnly : this.options.scaleIntegersOnly, calculateYRange : function(currentHeight){ var updatedRanges = helpers.calculateScaleRange( dataTotal(), currentHeight, this.fontSize, this.beginAtZero, this.integersOnly ); helpers.extend(this, updatedRanges); }, xLabels : labels, font : helpers.fontString(this.options.scaleFontSize, this.options.scaleFontStyle, this.options.scaleFontFamily), lineWidth : this.options.scaleLineWidth, lineColor : this.options.scaleLineColor, showHorizontalLines : this.options.scaleShowHorizontalLines, showVerticalLines : this.options.scaleShowVerticalLines, gridLineWidth : (this.options.scaleShowGridLines) ? this.options.scaleGridLineWidth : 0, gridLineColor : (this.options.scaleShowGridLines) ? this.options.scaleGridLineColor : "rgba(0,0,0,0)", padding: (this.options.showScale) ? 0 : this.options.pointDotRadius + this.options.pointDotStrokeWidth, showLabels : this.options.scaleShowLabels, display : this.options.showScale }; if (this.options.scaleOverride){ helpers.extend(scaleOptions, { calculateYRange: helpers.noop, steps: this.options.scaleSteps, stepValue: this.options.scaleStepWidth, min: this.options.scaleStartValue, max: this.options.scaleStartValue + (this.options.scaleSteps * this.options.scaleStepWidth) }); } this.scale = new Chart.Scale(scaleOptions); }, addData : function(valuesArray,label){ //Map the values array for each of the datasets helpers.each(valuesArray,function(value,datasetIndex){ //Add a new point for each piece of data, passing any required data to draw. this.datasets[datasetIndex].points.push(new this.PointClass({ value : value, label : label, x: this.scale.calculateX(this.scale.valuesCount+1), y: this.scale.endPoint, strokeColor : this.datasets[datasetIndex].pointStrokeColor, fillColor : this.datasets[datasetIndex].pointColor })); },this); this.scale.addXLabel(label); //Then re-render the chart. this.update(); }, removeData : function(){ this.scale.removeXLabel(); //Then re-render the chart. helpers.each(this.datasets,function(dataset){ dataset.points.shift(); },this); this.update(); }, reflow : function(){ var newScaleProps = helpers.extend({ height : this.chart.height, width : this.chart.width }); this.scale.update(newScaleProps); }, draw : function(ease){ var easingDecimal = ease \|\| 1; this.clear(); var ctx = this.chart.ctx; // Some helper methods for getting the next/prev points var hasValue = function(item){ return item.value !== null; }, nextPoint = function(point, collection, index){ return helpers.findNextWhere(collection, hasValue, index) \|\| point; }, previousPoint = function(point, collection, index){ return helpers.findPreviousWhere(collection, hasValue, index) \|\| point; }; this.scale.draw(easingDecimal); helpers.each(this.datasets,function(dataset){ var pointsWithValues = helpers.where(dataset.points, hasValue); //Transition each point first so that the line and point drawing isn't out of sync //We can use this extra loop to calculate the control points of this dataset also in this loop helpers.each(dataset.points, function(point, index){ if (point.hasValue()){ point.transition({ y : this.scale.calculateY(point.value), x : this.scale.calculateX(index) }, easingDecimal); } },this); // Control points need to be calculated in a seperate loop, because we need to know the current x/y of the point // This would cause issues when there is no animation, because the y of the next point would be 0, so beziers would be skewed if (this.options.bezierCurve){ helpers.each(pointsWithValues, function(point, index){ var tension = (index > 0 && index < pointsWithValues.length - 1) ? this.options.bezierCurveTension : 0; point.controlPoints = helpers.splineCurve( previousPoint(point, pointsWithValues, index), point, nextPoint(point, pointsWithValues, index), tension ); // Prevent the bezier going outside of the bounds of the graph // Cap puter bezier handles to the upper/lower scale bounds if (point.controlPoints.outer.y > this.scale.endPoint){ point.controlPoints.outer.y = this.scale.endPoint; } else if (point.controlPoints.outer.y < this.scale.startPoint){ point.controlPoints.outer.y = this.scale.startPoint; } // Cap inner bezier handles to the upper/lower scale bounds if (point.controlPoints.inner.y > this.scale.endPoint){ point.controlPoints.inner.y = this.scale.endPoint; } else if (point.controlPoints.inner.y < this.scale.startPoint){ point.controlPoints.inner.y = this.scale.startPoint; } },this); } //Draw the line between all the points ctx.lineWidth = this.options.datasetStrokeWidth; ctx.strokeStyle = dataset.strokeColor; ctx.beginPath(); helpers.each(pointsWithValues, function(point, index){ if (index === 0){ ctx.moveTo(point.x, point.y); } else{ if(this.options.bezierCurve){ var previous = previousPoint(point, pointsWithValues, index); ctx.bezierCurveTo( previous.controlPoints.outer.x, previous.controlPoints.outer.y, point.controlPoints.inner.x, point.controlPoints.inner.y, point.x, point.y ); } else{ ctx.lineTo(point.x,point.y); } } }, this); ctx.stroke(); if (this.options.datasetFill && pointsWithValues.length > 0){ //Round off the line by going to the base of the chart, back to the start, then fill. ctx.lineTo(pointsWithValues[pointsWithValues.length - 1].x, this.scale.endPoint); ctx.lineTo(pointsWithValues[0].x, this.scale.endPoint); ctx.fillStyle = dataset.fillColor; ctx.closePath(); ctx.fill(); } //Now draw the points over the line //A little inefficient double looping, but better than the line //lagging behind the point positions helpers.each(pointsWithValues,function(point){ point.draw(); }); },this); } }); }).call(this); (function(){ "use strict"; var root = this, Chart = root.Chart, //Cache a local reference to Chart.helpers helpers = Chart.helpers; var defaultConfig = { //Boolean - Show a backdrop to the scale label scaleShowLabelBackdrop : true, //String - The colour of the label backdrop scaleBackdropColor : "rgba(255,255,255,0.75)", // Boolean - Whether the scale should begin at zero scaleBeginAtZero : true, //Number - The backdrop padding above & below the label in pixels scaleBackdropPaddingY : 2, //Number - The backdrop padding to the side of the label in pixels scaleBackdropPaddingX : 2, //Boolean - Show line for each value in the scale scaleShowLine : true, //Boolean - Stroke a line around each segment in the chart segmentShowStroke : true, //String - The colour of the stroke on each segement. segmentStrokeColor : "#fff", //Number - The width of the stroke value in pixels segmentStrokeWidth : 2, //Number - Amount of animation steps animationSteps : 100, //String - Animation easing effect. animationEasing : "easeOutBounce", //Boolean - Whether to animate the rotation of the chart animateRotate : true, //Boolean - Whether to animate scaling the chart from the centre animateScale : false, //String - A legend template legendTemplate : "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i=0; i<segments.length; i++){%><li><span style=\"background-color:<%=segments[i].fillColor%>\"></span><%if(segments[i].label){%><%=segments[i].label%><%}%></li><%}%></ul>" }; Chart.Type.extend({ //Passing in a name registers this chart in the Chart namespace name: "PolarArea", //Providing a defaults will also register the deafults in the chart namespace defaults : defaultConfig, //Initialize is fired when the chart is initialized - Data is passed in as a parameter //Config is automatically merged by the core of Chart.js, and is available at this.options initialize: function(data){ this.segments = []; //Declare segment class as a chart instance specific class, so it can share props for this instance this.SegmentArc = Chart.Arc.extend({ showStroke : this.options.segmentShowStroke, strokeWidth : this.options.segmentStrokeWidth, strokeColor : this.options.segmentStrokeColor, ctx : this.chart.ctx, innerRadius : 0, x : this.chart.width/2, y : this.chart.height/2 }); this.scale = new Chart.RadialScale({ display: this.options.showScale, fontStyle: this.options.scaleFontStyle, fontSize: this.options.scaleFontSize, fontFamily: this.options.scaleFontFamily, fontColor: this.options.scaleFontColor, showLabels: this.options.scaleShowLabels, showLabelBackdrop: this.options.scaleShowLabelBackdrop, backdropColor: this.options.scaleBackdropColor, backdropPaddingY : this.options.scaleBackdropPaddingY, backdropPaddingX: this.options.scaleBackdropPaddingX, lineWidth: (this.options.scaleShowLine) ? this.options.scaleLineWidth : 0, lineColor: this.options.scaleLineColor, lineArc: true, width: this.chart.width, height: this.chart.height, xCenter: this.chart.width/2, yCenter: this.chart.height/2, ctx : this.chart.ctx, templateString: this.options.scaleLabel, valuesCount: data.length }); this.updateScaleRange(data); this.scale.update(); helpers.each(data,function(segment,index){ this.addData(segment,index,true); },this); //Set up tooltip events on the chart if (this.options.showTooltips){ helpers.bindEvents(this, this.options.tooltipEvents, function(evt){ var activeSegments = (evt.type !== 'mouseout') ? this.getSegmentsAtEvent(evt) : []; helpers.each(this.segments,function(segment){ segment.restore(["fillColor"]); }); helpers.each(activeSegments,function(activeSegment){ activeSegment.fillColor = activeSegment.highlightColor; }); this.showTooltip(activeSegments); }); } this.render(); }, getSegmentsAtEvent : function(e){ var segmentsArray = []; var location = helpers.getRelativePosition(e); helpers.each(this.segments,function(segment){ if (segment.inRange(location.x,location.y)) segmentsArray.push(segment); },this); return segmentsArray; }, addData : function(segment, atIndex, silent){ var index = atIndex \|\| this.segments.length; this.segments.splice(index, 0, new this.SegmentArc({ fillColor: segment.color, highlightColor: segment.highlight \|\| segment.color, label: segment.label, value: segment.value, outerRadius: (this.options.animateScale) ? 0 : this.scale.calculateCenterOffset(segment.value), circumference: (this.options.animateRotate) ? 0 : this.scale.getCircumference(), startAngle: Math.PI * 1.5 })); if (!silent){ this.reflow(); this.update(); } }, removeData: function(atIndex){ var indexToDelete = (helpers.isNumber(atIndex)) ? atIndex : this.segments.length-1; this.segments.splice(indexToDelete, 1); this.reflow(); this.update(); }, calculateTotal: function(data){ this.total = 0; helpers.each(data,function(segment){ this.total += segment.value; },this); this.scale.valuesCount = this.segments.length; }, updateScaleRange: function(datapoints){ var valuesArray = []; helpers.each(datapoints,function(segment){ valuesArray.push(segment.value); }); var scaleSizes = (this.options.scaleOverride) ? { steps: this.options.scaleSteps, stepValue: this.options.scaleStepWidth, min: this.options.scaleStartValue, max: this.options.scaleStartValue + (this.options.scaleSteps * this.options.scaleStepWidth) } : helpers.calculateScaleRange( valuesArray, helpers.min([this.chart.width, this.chart.height])/2, this.options.scaleFontSize, this.options.scaleBeginAtZero, this.options.scaleIntegersOnly ); helpers.extend( this.scale, scaleSizes, { size: helpers.min([this.chart.width, this.chart.height]), xCenter: this.chart.width/2, yCenter: this.chart.height/2 } ); }, update : function(){ this.calculateTotal(this.segments); helpers.each(this.segments,function(segment){ segment.save(); }); this.reflow(); this.render(); }, reflow : function(){ helpers.extend(this.SegmentArc.prototype,{ x : this.chart.width/2, y : this.chart.height/2 }); this.updateScaleRange(this.segments); this.scale.update(); helpers.extend(this.scale,{ xCenter: this.chart.width/2, yCenter: this.chart.height/2 }); helpers.each(this.segments, function(segment){ segment.update({ outerRadius : this.scale.calculateCenterOffset(segment.value) }); }, this); }, draw : function(ease){ var easingDecimal = ease \|\| 1; //Clear & draw the canvas this.clear(); helpers.each(this.segments,function(segment, index){ segment.transition({ circumference : this.scale.getCircumference(), outerRadius : this.scale.calculateCenterOffset(segment.value) },easingDecimal); segment.endAngle = segment.startAngle + segment.circumference; // If we've removed the first segment we need to set the first one to // start at the top. if (index === 0){ segment.startAngle = Math.PI * 1.5; } //Check to see if it's the last segment, if not get the next and update the start angle if (index < this.segments.length - 1){ this.segments[index+1].startAngle = segment.endAngle; } segment.draw(); }, this); this.scale.draw(); } }); }).call(this); (function(){ "use strict"; var root = this, Chart = root.Chart, helpers = Chart.helpers; Chart.Type.extend({ name: "Radar", defaults:{ //Boolean - Whether to show lines for each scale point scaleShowLine : true, //Boolean - Whether we show the angle lines out of the radar angleShowLineOut : true, //Boolean - Whether to show labels on the scale scaleShowLabels : false, // Boolean - Whether the scale should begin at zero scaleBeginAtZero : true, //String - Colour of the angle line angleLineColor : "rgba(0,0,0,.1)", //Number - Pixel width of the angle line angleLineWidth : 1, //String - Point label font declaration pointLabelFontFamily : "'Arial'", //String - Point label font weight pointLabelFontStyle : "normal", //Number - Point label font size in pixels pointLabelFontSize : 10, //String - Point label font colour pointLabelFontColor : "#666", //Boolean - Whether to show a dot for each point pointDot : true, //Number - Radius of each point dot in pixels pointDotRadius : 3, //Number - Pixel width of point dot stroke pointDotStrokeWidth : 1, //Number - amount extra to add to the radius to cater for hit detection outside the drawn point pointHitDetectionRadius : 20, //Boolean - Whether to show a stroke for datasets datasetStroke : true, //Number - Pixel width of dataset stroke datasetStrokeWidth : 2, //Boolean - Whether to fill the dataset with a colour datasetFill : true, //String - A legend template legendTemplate : "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i=0; i<datasets.length; i++){%><li><span style=\"background-color:<%=datasets[i].strokeColor%>\"></span><%if(datasets[i].label){%><%=datasets[i].label%><%}%></li><%}%></ul>" }, initialize: function(data){ this.PointClass = Chart.Point.extend({ strokeWidth : this.options.pointDotStrokeWidth, radius : this.options.pointDotRadius, display: this.options.pointDot, hitDetectionRadius : this.options.pointHitDetectionRadius, ctx : this.chart.ctx }); this.datasets = []; this.buildScale(data); //Set up tooltip events on the chart if (this.options.showTooltips){ helpers.bindEvents(this, this.options.tooltipEvents, function(evt){ var activePointsCollection = (evt.type !== 'mouseout') ? this.getPointsAtEvent(evt) : []; this.eachPoints(function(point){ point.restore(['fillColor', 'strokeColor']); }); helpers.each(activePointsCollection, function(activePoint){ activePoint.fillColor = activePoint.highlightFill; activePoint.strokeColor = activePoint.highlightStroke; }); this.showTooltip(activePointsCollection); }); } //Iterate through each of the datasets, and build this into a property of the chart helpers.each(data.datasets,function(dataset){ var datasetObject = { label: dataset.label \|\| null, fillColor : dataset.fillColor, strokeColor : dataset.strokeColor, pointColor : dataset.pointColor, pointStrokeColor : dataset.pointStrokeColor, points : [] }; this.datasets.push(datasetObject); helpers.each(dataset.data,function(dataPoint,index){ //Add a new point for each piece of data, passing any required data to draw. var pointPosition; if (!this.scale.animation){ pointPosition = this.scale.getPointPosition(index, this.scale.calculateCenterOffset(dataPoint)); } datasetObject.points.push(new this.PointClass({ value : dataPoint, label : data.labels[index], datasetLabel: dataset.label, x: (this.options.animation) ? this.scale.xCenter : pointPosition.x, y: (this.options.animation) ? this.scale.yCenter : pointPosition.y, strokeColor : dataset.pointStrokeColor, fillColor : dataset.pointColor, highlightFill : dataset.pointHighlightFill \|\| dataset.pointColor, highlightStroke : dataset.pointHighlightStroke \|\| dataset.pointStrokeColor })); },this); },this); this.render(); }, eachPoints : function(callback){ helpers.each(this.datasets,function(dataset){ helpers.each(dataset.points,callback,this); },this); }, getPointsAtEvent : function(evt){ var mousePosition = helpers.getRelativePosition(evt), fromCenter = helpers.getAngleFromPoint({ x: this.scale.xCenter, y: this.scale.yCenter }, mousePosition); var anglePerIndex = (Math.PI * 2) /this.scale.valuesCount, pointIndex = Math.round((fromCenter.angle - Math.PI * 1.5) / anglePerIndex), activePointsCollection = []; // If we're at the top, make the pointIndex 0 to get the first of the array. if (pointIndex >= this.scale.valuesCount \|\| pointIndex < 0){ pointIndex = 0; } if (fromCenter.distance <= this.scale.drawingArea){ helpers.each(this.datasets, function(dataset){ activePointsCollection.push(dataset.points[pointIndex]); }); } return activePointsCollection; }, buildScale : function(data){ this.scale = new Chart.RadialScale({ display: this.options.showScale, fontStyle: this.options.scaleFontStyle, fontSize: this.options.scaleFontSize, fontFamily: this.options.scaleFontFamily, fontColor: this.options.scaleFontColor, showLabels: this.options.scaleShowLabels, showLabelBackdrop: this.options.scaleShowLabelBackdrop, backdropColor: this.options.scaleBackdropColor, backdropPaddingY : this.options.scaleBackdropPaddingY, backdropPaddingX: this.options.scaleBackdropPaddingX, lineWidth: (this.options.scaleShowLine) ? this.options.scaleLineWidth : 0, lineColor: this.options.scaleLineColor, angleLineColor : this.options.angleLineColor, angleLineWidth : (this.options.angleShowLineOut) ? this.options.angleLineWidth : 0, // Point labels at the edge of each line pointLabelFontColor : this.options.pointLabelFontColor, pointLabelFontSize : this.options.pointLabelFontSize, pointLabelFontFamily : this.options.pointLabelFontFamily, pointLabelFontStyle : this.options.pointLabelFontStyle, height : this.chart.height, width: this.chart.width, xCenter: this.chart.width/2, yCenter: this.chart.height/2, ctx : this.chart.ctx, templateString: this.options.scaleLabel, labels: data.labels, valuesCount: data.datasets[0].data.length }); this.scale.setScaleSize(); this.updateScaleRange(data.datasets); this.scale.buildYLabels(); }, updateScaleRange: function(datasets){ var valuesArray = (function(){ var totalDataArray = []; helpers.each(datasets,function(dataset){ if (dataset.data){ totalDataArray = totalDataArray.concat(dataset.data); } else { helpers.each(dataset.points, function(point){ totalDataArray.push(point.value); }); } }); return totalDataArray; })(); var scaleSizes = (this.options.scaleOverride) ? { steps: this.options.scaleSteps, stepValue: this.options.scaleStepWidth, min: this.options.scaleStartValue, max: this.options.scaleStartValue + (this.options.scaleSteps * this.options.scaleStepWidth) } : helpers.calculateScaleRange( valuesArray, helpers.min([this.chart.width, this.chart.height])/2, this.options.scaleFontSize, this.options.scaleBeginAtZero, this.options.scaleIntegersOnly ); helpers.extend( this.scale, scaleSizes ); }, addData : function(valuesArray,label){ //Map the values array for each of the datasets this.scale.valuesCount++; helpers.each(valuesArray,function(value,datasetIndex){ var pointPosition = this.scale.getPointPosition(this.scale.valuesCount, this.scale.calculateCenterOffset(value)); this.datasets[datasetIndex].points.push(new this.PointClass({ value : value, label : label, x: pointPosition.x, y: pointPosition.y, strokeColor : this.datasets[datasetIndex].pointStrokeColor, fillColor : this.datasets[datasetIndex].pointColor })); },this); this.scale.labels.push(label); this.reflow(); this.update(); }, removeData : function(){ this.scale.valuesCount--; this.scale.labels.shift(); helpers.each(this.datasets,function(dataset){ dataset.points.shift(); },this); this.reflow(); this.update(); }, update : function(){ this.eachPoints(function(point){ point.save(); }); this.reflow(); this.render(); }, reflow: function(){ helpers.extend(this.scale, { width : this.chart.width, height: this.chart.height, size : helpers.min([this.chart.width, this.chart.height]), xCenter: this.chart.width/2, yCenter: this.chart.height/2 }); this.updateScaleRange(this.datasets); this.scale.setScaleSize(); this.scale.buildYLabels(); }, draw : function(ease){ var easeDecimal = ease \|\| 1, ctx = this.chart.ctx; this.clear(); this.scale.draw(); helpers.each(this.datasets,function(dataset){ //Transition each point first so that the line and point drawing isn't out of sync helpers.each(dataset.points,function(point,index){ if (point.hasValue()){ point.transition(this.scale.getPointPosition(index, this.scale.calculateCenterOffset(point.value)), easeDecimal); } },this); //Draw the line between all the points ctx.lineWidth = this.options.datasetStrokeWidth; ctx.strokeStyle = dataset.strokeColor; ctx.beginPath(); helpers.each(dataset.points,function(point,index){ if (index === 0){ ctx.moveTo(point.x,point.y); } else{ ctx.lineTo(point.x,point.y); } },this); ctx.closePath(); ctx.stroke(); ctx.fillStyle = dataset.fillColor; ctx.fill(); //Now draw the points over the line //A little inefficient double looping, but better than the line //lagging behind the point positions helpers.each(dataset.points,function(point){ if (point.hasValue()){ point.draw(); } }); },this); } }); }).call(this);	107.04 KB	2026-02-12 14:54
📄 Chart.min.js /! Chart.js * http://chartjs.org/ * Version: 1.0.2 * * Copyright 2015 Nick Downie * Released under the MIT license * https://github.com/nnnick/Chart.js/blob/master/LICENSE.md / (function(){"use strict";var t=this,i=t.Chart,e=function(t){this.canvas=t.canvas,this.ctx=t;var i=function(t,i){return t["offset"+i]?t["offset"+i]:document.defaultView.getComputedStyle(t).getPropertyValue(i)},e=this.width=i(t.canvas,"Width"),n=this.height=i(t.canvas,"Height");t.canvas.width=e,t.canvas.height=n;var e=this.width=t.canvas.width,n=this.height=t.canvas.height;return this.aspectRatio=this.width/this.height,s.retinaScale(this),this};e.defaults={global:{animation:!0,animationSteps:60,animationEasing:"easeOutQuart",showScale:!0,scaleOverride:!1,scaleSteps:null,scaleStepWidth:null,scaleStartValue:null,scaleLineColor:"rgba(0,0,0,.1)",scaleLineWidth:1,scaleShowLabels:!0,scaleLabel:"<%=value%>",scaleIntegersOnly:!0,scaleBeginAtZero:!1,scaleFontFamily:"'Helvetica Neue', 'Helvetica', 'Arial', 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t=this.ctx.measureText(this.title).width,i=z(this.ctx,this.font,this.labels)+this.fontSize+3,e=g([i,t]);this.width=e+2this.xPadding;var s=this.height/2;this.y-s<0?this.y=s:this.y+s>this.chart.height&&(this.y=this.chart.height-s),this.x>this.chart.width/2?this.x-=this.xOffset+this.width:this.x+=this.xOffset},getLineHeight:function(t){var i=this.y-this.height/2+this.yPadding,e=t-1;return 0===t?i+this.titleFontSize/2:i+(1.5this.fontSizee+this.fontSize/2)+1.5this.titleFontSize},draw:function(){if(this.custom)this.custom(this);else{B(this.ctx,this.x,this.y-this.height/2,this.width,this.height,this.cornerRadius);var t=this.ctx;t.fillStyle=this.fillColor,t.fill(),t.closePath(),t.textAlign="left",t.textBaseline="middle",t.fillStyle=this.titleTextColor,t.font=this.titleFont,t.fillText(this.title,this.x+this.xPadding,this.getLineHeight(0)),t.font=this.font,s.each(this.labels,function(i,e){t.fillStyle=this.textColor,t.fillText(i,this.x+this.xPadding+this.fontSize+3,this.getLineHeight(e+1)),t.fillStyle=this.legendColorBackground,t.fillRect(this.x+this.xPadding,this.getLineHeight(e+1)-this.fontSize/2,this.fontSize,this.fontSize),t.fillStyle=this.legendColors[e].fill,t.fillRect(this.x+this.xPadding,this.getLineHeight(e+1)-this.fontSize/2,this.fontSize,this.fontSize)},this)}}}),e.Scale=e.Element.extend({initialize:function(){this.fit()},buildYLabels:function(){this.yLabels=[];for(var t=v(this.stepValue),i=0;i<=this.steps;i++)this.yLabels.push(C(this.templateString,{value:(this.min+ithis.stepValue).toFixed(t)}));this.yLabelWidth=this.display&&this.showLabels?z(this.ctx,this.font,this.yLabels):0},addXLabel:function(t){this.xLabels.push(t),this.valuesCount++,this.fit()},removeXLabel:function(){this.xLabels.shift(),this.valuesCount--,this.fit()},fit:function(){this.startPoint=this.display?this.fontSize:0,this.endPoint=this.display?this.height-1.5this.fontSize-5:this.height,this.startPoint+=this.padding,this.endPoint-=this.padding;var t,i=this.endPoint-this.startPoint;for(this.calculateYRange(i),this.buildYLabels(),this.calculateXLabelRotation();i>this.endPoint-this.startPoint;)i=this.endPoint-this.startPoint,t=this.yLabelWidth,this.calculateYRange(i),this.buildYLabels(),t<this.yLabelWidth&&this.calculateXLabelRotation()},calculateXLabelRotation:function(){this.ctx.font=this.font;var t,i,e=this.ctx.measureText(this.xLabels[0]).width,s=this.ctx.measureText(this.xLabels[this.xLabels.length-1]).width;if(this.xScalePaddingRight=s/2+3,this.xScalePaddingLeft=e/2>this.yLabelWidth+10?e/2:this.yLabelWidth+10,this.xLabelRotation=0,this.display){var n,o=z(this.ctx,this.font,this.xLabels);this.xLabelWidth=o;for(var a=Math.floor(this.calculateX(1)-this.calculateX(0))-6;this.xLabelWidth>a&&0===this.xLabelRotation\|\|this.xLabelWidth>a&&this.xLabelRotation<=90&&this.xLabelRotation>0;)n=Math.cos(S(this.xLabelRotation)),t=ne,i=ns,t+this.fontSize/2>this.yLabelWidth+8&&(this.xScalePaddingLeft=t+this.fontSize/2),this.xScalePaddingRight=this.fontSize/2,this.xLabelRotation++,this.xLabelWidth=no;this.xLabelRotation>0&&(this.endPoint-=Math.sin(S(this.xLabelRotation))o+3)}else this.xLabelWidth=0,this.xScalePaddingRight=this.padding,this.xScalePaddingLeft=this.padding},calculateYRange:c,drawingArea:function(){return this.startPoint-this.endPoint},calculateY:function(t){var i=this.drawingArea()/(this.min-this.max);return this.endPoint-i(t-this.min)},calculateX:function(t){var i=(this.xLabelRotation>0,this.width-(this.xScalePaddingLeft+this.xScalePaddingRight)),e=i/Math.max(this.valuesCount-(this.offsetGridLines?0:1),1),s=et+this.xScalePaddingLeft;return this.offsetGridLines&&(s+=e/2),Math.round(s)},update:function(t){s.extend(this,t),this.fit()},draw:function(){var t=this.ctx,i=(this.endPoint-this.startPoint)/this.steps,e=Math.round(this.xScalePaddingLeft);this.display&&(t.fillStyle=this.textColor,t.font=this.font,n(this.yLabels,function(n,o){var a=this.endPoint-io,h=Math.round(a),l=this.showHorizontalLines;t.textAlign="right",t.textBaseline="middle",this.showLabels&&t.fillText(n,e-10,a),0!==o\|\|l\|\|(l=!0),l&&t.beginPath(),o>0?(t.lineWidth=this.gridLineWidth,t.strokeStyle=this.gridLineColor):(t.lineWidth=this.lineWidth,t.strokeStyle=this.lineColor),h+=s.aliasPixel(t.lineWidth),l&&(t.moveTo(e,h),t.lineTo(this.width,h),t.stroke(),t.closePath()),t.lineWidth=this.lineWidth,t.strokeStyle=this.lineColor,t.beginPath(),t.moveTo(e-5,h),t.lineTo(e,h),t.stroke(),t.closePath()},this),n(this.xLabels,function(i,e){var s=this.calculateX(e)+x(this.lineWidth),n=this.calculateX(e-(this.offsetGridLines?.5:0))+x(this.lineWidth),o=this.xLabelRotation>0,a=this.showVerticalLines;0!==e\|\|a\|\|(a=!0),a&&t.beginPath(),e>0?(t.lineWidth=this.gridLineWidth,t.strokeStyle=this.gridLineColor):(t.lineWidth=this.lineWidth,t.strokeStyle=this.lineColor),a&&(t.moveTo(n,this.endPoint),t.lineTo(n,this.startPoint-3),t.stroke(),t.closePath()),t.lineWidth=this.lineWidth,t.strokeStyle=this.lineColor,t.beginPath(),t.moveTo(n,this.endPoint),t.lineTo(n,this.endPoint+5),t.stroke(),t.closePath(),t.save(),t.translate(s,o?this.endPoint+12:this.endPoint+8),t.rotate(-1S(this.xLabelRotation)),t.font=this.font,t.textAlign=o?"right":"center",t.textBaseline=o?"middle":"top",t.fillText(i,0,0),t.restore()},this))}}),e.RadialScale=e.Element.extend({initialize:function(){this.size=m([this.height,this.width]),this.drawingArea=this.display?this.size/2-(this.fontSize/2+this.backdropPaddingY):this.size/2},calculateCenterOffset:function(t){var i=this.drawingArea/(this.max-this.min);return(t-this.min)i},update:function(){this.lineArc?this.drawingArea=this.display?this.size/2-(this.fontSize/2+this.backdropPaddingY):this.size/2:this.setScaleSize(),this.buildYLabels()},buildYLabels:function(){this.yLabels=[];for(var t=v(this.stepValue),i=0;i<=this.steps;i++)this.yLabels.push(C(this.templateString,{value:(this.min+ithis.stepValue).toFixed(t)}))},getCircumference:function(){return 2Math.PI/this.valuesCount},setScaleSize:function(){var t,i,e,s,n,o,a,h,l,r,c,u,d=m([this.height/2-this.pointLabelFontSize-5,this.width/2]),p=this.width,g=0;for(this.ctx.font=W(this.pointLabelFontSize,this.pointLabelFontStyle,this.pointLabelFontFamily),i=0;i<this.valuesCount;i++)t=this.getPointPosition(i,d),e=this.ctx.measureText(C(this.templateString,{value:this.labels[i]})).width+5,0===i\|\|i===this.valuesCount/2?(s=e/2,t.x+s>p&&(p=t.x+s,n=i),t.x-s<g&&(g=t.x-s,a=i)):i<this.valuesCount/2?t.x+e>p&&(p=t.x+e,n=i):i>this.valuesCount/2&&t.x-e<g&&(g=t.x-e,a=i);l=g,r=Math.ceil(p-this.width),o=this.getIndexAngle(n),h=this.getIndexAngle(a),c=r/Math.sin(o+Math.PI/2),u=l/Math.sin(h+Math.PI/2),c=f(c)?c:0,u=f(u)?u:0,this.drawingArea=d-(u+c)/2,this.setCenterPoint(u,c)},setCenterPoint:function(t,i){var e=this.width-i-this.drawingArea,s=t+this.drawingArea;this.xCenter=(s+e)/2,this.yCenter=this.height/2},getIndexAngle:function(t){var i=2Math.PI/this.valuesCount;return ti-Math.PI/2},getPointPosition:function(t,i){var e=this.getIndexAngle(t);return{x:Math.cos(e)i+this.xCenter,y:Math.sin(e)i+this.yCenter}},draw:function(){if(this.display){var t=this.ctx;if(n(this.yLabels,function(i,e){if(e>0){var s,n=e(this.drawingArea/this.steps),o=this.yCenter-n;if(this.lineWidth>0)if(t.strokeStyle=this.lineColor,t.lineWidth=this.lineWidth,this.lineArc)t.beginPath(),t.arc(this.xCenter,this.yCenter,n,0,2Math.PI),t.closePath(),t.stroke();else{t.beginPath();for(var a=0;a<this.valuesCount;a++)s=this.getPointPosition(a,this.calculateCenterOffset(this.min+ethis.stepValue)),0===a?t.moveTo(s.x,s.y):t.lineTo(s.x,s.y);t.closePath(),t.stroke()}if(this.showLabels){if(t.font=W(this.fontSize,this.fontStyle,this.fontFamily),this.showLabelBackdrop){var h=t.measureText(i).width;t.fillStyle=this.backdropColor,t.fillRect(this.xCenter-h/2-this.backdropPaddingX,o-this.fontSize/2-this.backdropPaddingY,h+2this.backdropPaddingX,this.fontSize+2this.backdropPaddingY)}t.textAlign="center",t.textBaseline="middle",t.fillStyle=this.fontColor,t.fillText(i,this.xCenter,o)}}},this),!this.lineArc){t.lineWidth=this.angleLineWidth,t.strokeStyle=this.angleLineColor;for(var i=this.valuesCount-1;i>=0;i--){if(this.angleLineWidth>0){var e=this.getPointPosition(i,this.calculateCenterOffset(this.max));t.beginPath(),t.moveTo(this.xCenter,this.yCenter),t.lineTo(e.x,e.y),t.stroke(),t.closePath()}var s=this.getPointPosition(i,this.calculateCenterOffset(this.max)+5);t.font=W(this.pointLabelFontSize,this.pointLabelFontStyle,this.pointLabelFontFamily),t.fillStyle=this.pointLabelFontColor;var o=this.labels.length,a=this.labels.length/2,h=a/2,l=h>i\|\|i>o-h,r=i===h\|\|i===o-h;t.textAlign=0===i?"center":i===a?"center":a>i?"left":"right",t.textBaseline=r?"middle":l?"bottom":"top",t.fillText(this.labels[i],s.x,s.y)}}}}}),s.addEvent(window,"resize",function(){var t;return function(){clearTimeout(t),t=setTimeout(function(){n(e.instances,function(t){t.options.responsive&&t.resize(t.render,!0)})},50)}}()),p?define(function(){return e}):"object"==typeof module&&module.exports&&(module.exports=e),t.Chart=e,e.noConflict=function(){return t.Chart=i,e}}).call(this),function(){"use strict";var t=this,i=t.Chart,e=i.helpers,s={scaleBeginAtZero:!0,scaleShowGridLines:!0,scaleGridLineColor:"rgba(0,0,0,.05)",scaleGridLineWidth:1,scaleShowHorizontalLines:!0,scaleShowVerticalLines:!0,barShowStroke:!0,barStrokeWidth:2,barValueSpacing:5,barDatasetSpacing:1,legendTemplate:'<ul class="<%=name.toLowerCase()%>-legend"><% for (var i=0; i<datasets.length; i++){%><li><span style="background-color:<%=datasets[i].fillColor%>"></span><%if(datasets[i].label){%><%=datasets[i].label%><%}%></li><%}%></ul>'};i.Type.extend({name:"Bar",defaults:s,initialize:function(t){var s=this.options;this.ScaleClass=i.Scale.extend({offsetGridLines:!0,calculateBarX:function(t,i,e){var n=this.calculateBaseWidth(),o=this.calculateX(e)-n/2,a=this.calculateBarWidth(t);return o+ai+is.barDatasetSpacing+a/2},calculateBaseWidth:function(){return this.calculateX(1)-this.calculateX(0)-2s.barValueSpacing},calculateBarWidth:function(t){var i=this.calculateBaseWidth()-(t-1)s.barDatasetSpacing;return i/t}}),this.datasets=[],this.options.showTooltips&&e.bindEvents(this,this.options.tooltipEvents,function(t){var i="mouseout"!==t.type?this.getBarsAtEvent(t):[];this.eachBars(function(t){t.restore(["fillColor","strokeColor"])}),e.each(i,function(t){t.fillColor=t.highlightFill,t.strokeColor=t.highlightStroke}),this.showTooltip(i)}),this.BarClass=i.Rectangle.extend({strokeWidth:this.options.barStrokeWidth,showStroke:this.options.barShowStroke,ctx:this.chart.ctx}),e.each(t.datasets,function(i){var s={label:i.label\|\|null,fillColor:i.fillColor,strokeColor:i.strokeColor,bars:[]};this.datasets.push(s),e.each(i.data,function(e,n){s.bars.push(new this.BarClass({value:e,label:t.labels[n],datasetLabel:i.label,strokeColor:i.strokeColor,fillColor:i.fillColor,highlightFill:i.highlightFill\|\|i.fillColor,highlightStroke:i.highlightStroke\|\|i.strokeColor}))},this)},this),this.buildScale(t.labels),this.BarClass.prototype.base=this.scale.endPoint,this.eachBars(function(t,i,s){e.extend(t,{width:this.scale.calculateBarWidth(this.datasets.length),x:this.scale.calculateBarX(this.datasets.length,s,i),y:this.scale.endPoint}),t.save()},this),this.render()},update:function(){this.scale.update(),e.each(this.activeElements,function(t){t.restore(["fillColor","strokeColor"])}),this.eachBars(function(t){t.save()}),this.render()},eachBars:function(t){e.each(this.datasets,function(i,s){e.each(i.bars,t,this,s)},this)},getBarsAtEvent:function(t){for(var i,s=[],n=e.getRelativePosition(t),o=function(t){s.push(t.bars[i])},a=0;a<this.datasets.length;a++)for(i=0;i<this.datasets[a].bars.length;i++)if(this.datasets[a].bars[i].inRange(n.x,n.y))return e.each(this.datasets,o),s;return s},buildScale:function(t){var i=this,s=function(){var t=[];return i.eachBars(function(i){t.push(i.value)}),t},n={templateString:this.options.scaleLabel,height:this.chart.height,width:this.chart.width,ctx:this.chart.ctx,textColor:this.options.scaleFontColor,fontSize:this.options.scaleFontSize,fontStyle:this.options.scaleFontStyle,fontFamily:this.options.scaleFontFamily,valuesCount:t.length,beginAtZero:this.options.scaleBeginAtZero,integersOnly:this.options.scaleIntegersOnly,calculateYRange:function(t){var i=e.calculateScaleRange(s(),t,this.fontSize,this.beginAtZero,this.integersOnly);e.extend(this,i)},xLabels:t,font:e.fontString(this.options.scaleFontSize,this.options.scaleFontStyle,this.options.scaleFontFamily),lineWidth:this.options.scaleLineWidth,lineColor:this.options.scaleLineColor,showHorizontalLines:this.options.scaleShowHorizontalLines,showVerticalLines:this.options.scaleShowVerticalLines,gridLineWidth:this.options.scaleShowGridLines?this.options.scaleGridLineWidth:0,gridLineColor:this.options.scaleShowGridLines?this.options.scaleGridLineColor:"rgba(0,0,0,0)",padding:this.options.showScale?0:this.options.barShowStroke?this.options.barStrokeWidth:0,showLabels:this.options.scaleShowLabels,display:this.options.showScale};this.options.scaleOverride&&e.extend(n,{calculateYRange:e.noop,steps:this.options.scaleSteps,stepValue:this.options.scaleStepWidth,min:this.options.scaleStartValue,max:this.options.scaleStartValue+this.options.scaleStepsthis.options.scaleStepWidth}),this.scale=new this.ScaleClass(n)},addData:function(t,i){e.each(t,function(t,e){this.datasets[e].bars.push(new this.BarClass({value:t,label:i,x:this.scale.calculateBarX(this.datasets.length,e,this.scale.valuesCount+1),y:this.scale.endPoint,width:this.scale.calculateBarWidth(this.datasets.length),base:this.scale.endPoint,strokeColor:this.datasets[e].strokeColor,fillColor:this.datasets[e].fillColor})) },this),this.scale.addXLabel(i),this.update()},removeData:function(){this.scale.removeXLabel(),e.each(this.datasets,function(t){t.bars.shift()},this),this.update()},reflow:function(){e.extend(this.BarClass.prototype,{y:this.scale.endPoint,base:this.scale.endPoint});var t=e.extend({height:this.chart.height,width:this.chart.width});this.scale.update(t)},draw:function(t){var i=t\|\|1;this.clear();this.chart.ctx;this.scale.draw(i),e.each(this.datasets,function(t,s){e.each(t.bars,function(t,e){t.hasValue()&&(t.base=this.scale.endPoint,t.transition({x:this.scale.calculateBarX(this.datasets.length,s,e),y:this.scale.calculateY(t.value),width:this.scale.calculateBarWidth(this.datasets.length)},i).draw())},this)},this)}})}.call(this),function(){"use strict";var t=this,i=t.Chart,e=i.helpers,s={segmentShowStroke:!0,segmentStrokeColor:"#fff",segmentStrokeWidth:2,percentageInnerCutout:50,animationSteps:100,animationEasing:"easeOutBounce",animateRotate:!0,animateScale:!1,legendTemplate:'<ul class="<%=name.toLowerCase()%>-legend"><% for (var i=0; i<segments.length; i++){%><li><span style="background-color:<%=segments[i].fillColor%>"></span><%if(segments[i].label){%><%=segments[i].label%><%}%></li><%}%></ul>'};i.Type.extend({name:"Doughnut",defaults:s,initialize:function(t){this.segments=[],this.outerRadius=(e.min([this.chart.width,this.chart.height])-this.options.segmentStrokeWidth/2)/2,this.SegmentArc=i.Arc.extend({ctx:this.chart.ctx,x:this.chart.width/2,y:this.chart.height/2}),this.options.showTooltips&&e.bindEvents(this,this.options.tooltipEvents,function(t){var i="mouseout"!==t.type?this.getSegmentsAtEvent(t):[];e.each(this.segments,function(t){t.restore(["fillColor"])}),e.each(i,function(t){t.fillColor=t.highlightColor}),this.showTooltip(i)}),this.calculateTotal(t),e.each(t,function(t,i){this.addData(t,i,!0)},this),this.render()},getSegmentsAtEvent:function(t){var i=[],s=e.getRelativePosition(t);return e.each(this.segments,function(t){t.inRange(s.x,s.y)&&i.push(t)},this),i},addData:function(t,i,e){var s=i\|\|this.segments.length;this.segments.splice(s,0,new this.SegmentArc({value:t.value,outerRadius:this.options.animateScale?0:this.outerRadius,innerRadius:this.options.animateScale?0:this.outerRadius/100this.options.percentageInnerCutout,fillColor:t.color,highlightColor:t.highlight\|\|t.color,showStroke:this.options.segmentShowStroke,strokeWidth:this.options.segmentStrokeWidth,strokeColor:this.options.segmentStrokeColor,startAngle:1.5Math.PI,circumference:this.options.animateRotate?0:this.calculateCircumference(t.value),label:t.label})),e\|\|(this.reflow(),this.update())},calculateCircumference:function(t){return 2Math.PI(Math.abs(t)/this.total)},calculateTotal:function(t){this.total=0,e.each(t,function(t){this.total+=Math.abs(t.value)},this)},update:function(){this.calculateTotal(this.segments),e.each(this.activeElements,function(t){t.restore(["fillColor"])}),e.each(this.segments,function(t){t.save()}),this.render()},removeData:function(t){var i=e.isNumber(t)?t:this.segments.length-1;this.segments.splice(i,1),this.reflow(),this.update()},reflow:function(){e.extend(this.SegmentArc.prototype,{x:this.chart.width/2,y:this.chart.height/2}),this.outerRadius=(e.min([this.chart.width,this.chart.height])-this.options.segmentStrokeWidth/2)/2,e.each(this.segments,function(t){t.update({outerRadius:this.outerRadius,innerRadius:this.outerRadius/100this.options.percentageInnerCutout})},this)},draw:function(t){var i=t?t:1;this.clear(),e.each(this.segments,function(t,e){t.transition({circumference:this.calculateCircumference(t.value),outerRadius:this.outerRadius,innerRadius:this.outerRadius/100this.options.percentageInnerCutout},i),t.endAngle=t.startAngle+t.circumference,t.draw(),0===e&&(t.startAngle=1.5Math.PI),e<this.segments.length-1&&(this.segments[e+1].startAngle=t.endAngle)},this)}}),i.types.Doughnut.extend({name:"Pie",defaults:e.merge(s,{percentageInnerCutout:0})})}.call(this),function(){"use strict";var t=this,i=t.Chart,e=i.helpers,s={scaleShowGridLines:!0,scaleGridLineColor:"rgba(0,0,0,.05)",scaleGridLineWidth:1,scaleShowHorizontalLines:!0,scaleShowVerticalLines:!0,bezierCurve:!0,bezierCurveTension:.4,pointDot:!0,pointDotRadius:4,pointDotStrokeWidth:1,pointHitDetectionRadius:20,datasetStroke:!0,datasetStrokeWidth:2,datasetFill:!0,legendTemplate:'<ul class="<%=name.toLowerCase()%>-legend"><% for (var i=0; i<datasets.length; i++){%><li><span style="background-color:<%=datasets[i].strokeColor%>"></span><%if(datasets[i].label){%><%=datasets[i].label%><%}%></li><%}%></ul>'};i.Type.extend({name:"Line",defaults:s,initialize:function(t){this.PointClass=i.Point.extend({strokeWidth:this.options.pointDotStrokeWidth,radius:this.options.pointDotRadius,display:this.options.pointDot,hitDetectionRadius:this.options.pointHitDetectionRadius,ctx:this.chart.ctx,inRange:function(t){return Math.pow(t-this.x,2)<Math.pow(this.radius+this.hitDetectionRadius,2)}}),this.datasets=[],this.options.showTooltips&&e.bindEvents(this,this.options.tooltipEvents,function(t){var i="mouseout"!==t.type?this.getPointsAtEvent(t):[];this.eachPoints(function(t){t.restore(["fillColor","strokeColor"])}),e.each(i,function(t){t.fillColor=t.highlightFill,t.strokeColor=t.highlightStroke}),this.showTooltip(i)}),e.each(t.datasets,function(i){var s={label:i.label\|\|null,fillColor:i.fillColor,strokeColor:i.strokeColor,pointColor:i.pointColor,pointStrokeColor:i.pointStrokeColor,points:[]};this.datasets.push(s),e.each(i.data,function(e,n){s.points.push(new this.PointClass({value:e,label:t.labels[n],datasetLabel:i.label,strokeColor:i.pointStrokeColor,fillColor:i.pointColor,highlightFill:i.pointHighlightFill\|\|i.pointColor,highlightStroke:i.pointHighlightStroke\|\|i.pointStrokeColor}))},this),this.buildScale(t.labels),this.eachPoints(function(t,i){e.extend(t,{x:this.scale.calculateX(i),y:this.scale.endPoint}),t.save()},this)},this),this.render()},update:function(){this.scale.update(),e.each(this.activeElements,function(t){t.restore(["fillColor","strokeColor"])}),this.eachPoints(function(t){t.save()}),this.render()},eachPoints:function(t){e.each(this.datasets,function(i){e.each(i.points,t,this)},this)},getPointsAtEvent:function(t){var i=[],s=e.getRelativePosition(t);return e.each(this.datasets,function(t){e.each(t.points,function(t){t.inRange(s.x,s.y)&&i.push(t)})},this),i},buildScale:function(t){var s=this,n=function(){var t=[];return s.eachPoints(function(i){t.push(i.value)}),t},o={templateString:this.options.scaleLabel,height:this.chart.height,width:this.chart.width,ctx:this.chart.ctx,textColor:this.options.scaleFontColor,fontSize:this.options.scaleFontSize,fontStyle:this.options.scaleFontStyle,fontFamily:this.options.scaleFontFamily,valuesCount:t.length,beginAtZero:this.options.scaleBeginAtZero,integersOnly:this.options.scaleIntegersOnly,calculateYRange:function(t){var i=e.calculateScaleRange(n(),t,this.fontSize,this.beginAtZero,this.integersOnly);e.extend(this,i)},xLabels:t,font:e.fontString(this.options.scaleFontSize,this.options.scaleFontStyle,this.options.scaleFontFamily),lineWidth:this.options.scaleLineWidth,lineColor:this.options.scaleLineColor,showHorizontalLines:this.options.scaleShowHorizontalLines,showVerticalLines:this.options.scaleShowVerticalLines,gridLineWidth:this.options.scaleShowGridLines?this.options.scaleGridLineWidth:0,gridLineColor:this.options.scaleShowGridLines?this.options.scaleGridLineColor:"rgba(0,0,0,0)",padding:this.options.showScale?0:this.options.pointDotRadius+this.options.pointDotStrokeWidth,showLabels:this.options.scaleShowLabels,display:this.options.showScale};this.options.scaleOverride&&e.extend(o,{calculateYRange:e.noop,steps:this.options.scaleSteps,stepValue:this.options.scaleStepWidth,min:this.options.scaleStartValue,max:this.options.scaleStartValue+this.options.scaleStepsthis.options.scaleStepWidth}),this.scale=new i.Scale(o)},addData:function(t,i){e.each(t,function(t,e){this.datasets[e].points.push(new this.PointClass({value:t,label:i,x:this.scale.calculateX(this.scale.valuesCount+1),y:this.scale.endPoint,strokeColor:this.datasets[e].pointStrokeColor,fillColor:this.datasets[e].pointColor}))},this),this.scale.addXLabel(i),this.update()},removeData:function(){this.scale.removeXLabel(),e.each(this.datasets,function(t){t.points.shift()},this),this.update()},reflow:function(){var t=e.extend({height:this.chart.height,width:this.chart.width});this.scale.update(t)},draw:function(t){var i=t\|\|1;this.clear();var s=this.chart.ctx,n=function(t){return null!==t.value},o=function(t,i,s){return e.findNextWhere(i,n,s)\|\|t},a=function(t,i,s){return e.findPreviousWhere(i,n,s)\|\|t};this.scale.draw(i),e.each(this.datasets,function(t){var h=e.where(t.points,n);e.each(t.points,function(t,e){t.hasValue()&&t.transition({y:this.scale.calculateY(t.value),x:this.scale.calculateX(e)},i)},this),this.options.bezierCurve&&e.each(h,function(t,i){var s=i>0&&i<h.length-1?this.options.bezierCurveTension:0;t.controlPoints=e.splineCurve(a(t,h,i),t,o(t,h,i),s),t.controlPoints.outer.y>this.scale.endPoint?t.controlPoints.outer.y=this.scale.endPoint:t.controlPoints.outer.y<this.scale.startPoint&&(t.controlPoints.outer.y=this.scale.startPoint),t.controlPoints.inner.y>this.scale.endPoint?t.controlPoints.inner.y=this.scale.endPoint:t.controlPoints.inner.y<this.scale.startPoint&&(t.controlPoints.inner.y=this.scale.startPoint)},this),s.lineWidth=this.options.datasetStrokeWidth,s.strokeStyle=t.strokeColor,s.beginPath(),e.each(h,function(t,i){if(0===i)s.moveTo(t.x,t.y);else if(this.options.bezierCurve){var e=a(t,h,i);s.bezierCurveTo(e.controlPoints.outer.x,e.controlPoints.outer.y,t.controlPoints.inner.x,t.controlPoints.inner.y,t.x,t.y)}else s.lineTo(t.x,t.y)},this),s.stroke(),this.options.datasetFill&&h.length>0&&(s.lineTo(h[h.length-1].x,this.scale.endPoint),s.lineTo(h[0].x,this.scale.endPoint),s.fillStyle=t.fillColor,s.closePath(),s.fill()),e.each(h,function(t){t.draw()})},this)}})}.call(this),function(){"use strict";var t=this,i=t.Chart,e=i.helpers,s={scaleShowLabelBackdrop:!0,scaleBackdropColor:"rgba(255,255,255,0.75)",scaleBeginAtZero:!0,scaleBackdropPaddingY:2,scaleBackdropPaddingX:2,scaleShowLine:!0,segmentShowStroke:!0,segmentStrokeColor:"#fff",segmentStrokeWidth:2,animationSteps:100,animationEasing:"easeOutBounce",animateRotate:!0,animateScale:!1,legendTemplate:'<ul class="<%=name.toLowerCase()%>-legend"><% for (var i=0; i<segments.length; i++){%><li><span style="background-color:<%=segments[i].fillColor%>"></span><%if(segments[i].label){%><%=segments[i].label%><%}%></li><%}%></ul>'};i.Type.extend({name:"PolarArea",defaults:s,initialize:function(t){this.segments=[],this.SegmentArc=i.Arc.extend({showStroke:this.options.segmentShowStroke,strokeWidth:this.options.segmentStrokeWidth,strokeColor:this.options.segmentStrokeColor,ctx:this.chart.ctx,innerRadius:0,x:this.chart.width/2,y:this.chart.height/2}),this.scale=new i.RadialScale({display:this.options.showScale,fontStyle:this.options.scaleFontStyle,fontSize:this.options.scaleFontSize,fontFamily:this.options.scaleFontFamily,fontColor:this.options.scaleFontColor,showLabels:this.options.scaleShowLabels,showLabelBackdrop:this.options.scaleShowLabelBackdrop,backdropColor:this.options.scaleBackdropColor,backdropPaddingY:this.options.scaleBackdropPaddingY,backdropPaddingX:this.options.scaleBackdropPaddingX,lineWidth:this.options.scaleShowLine?this.options.scaleLineWidth:0,lineColor:this.options.scaleLineColor,lineArc:!0,width:this.chart.width,height:this.chart.height,xCenter:this.chart.width/2,yCenter:this.chart.height/2,ctx:this.chart.ctx,templateString:this.options.scaleLabel,valuesCount:t.length}),this.updateScaleRange(t),this.scale.update(),e.each(t,function(t,i){this.addData(t,i,!0)},this),this.options.showTooltips&&e.bindEvents(this,this.options.tooltipEvents,function(t){var i="mouseout"!==t.type?this.getSegmentsAtEvent(t):[];e.each(this.segments,function(t){t.restore(["fillColor"])}),e.each(i,function(t){t.fillColor=t.highlightColor}),this.showTooltip(i)}),this.render()},getSegmentsAtEvent:function(t){var i=[],s=e.getRelativePosition(t);return e.each(this.segments,function(t){t.inRange(s.x,s.y)&&i.push(t)},this),i},addData:function(t,i,e){var s=i\|\|this.segments.length;this.segments.splice(s,0,new this.SegmentArc({fillColor:t.color,highlightColor:t.highlight\|\|t.color,label:t.label,value:t.value,outerRadius:this.options.animateScale?0:this.scale.calculateCenterOffset(t.value),circumference:this.options.animateRotate?0:this.scale.getCircumference(),startAngle:1.5Math.PI})),e\|\|(this.reflow(),this.update())},removeData:function(t){var i=e.isNumber(t)?t:this.segments.length-1;this.segments.splice(i,1),this.reflow(),this.update()},calculateTotal:function(t){this.total=0,e.each(t,function(t){this.total+=t.value},this),this.scale.valuesCount=this.segments.length},updateScaleRange:function(t){var i=[];e.each(t,function(t){i.push(t.value)});var s=this.options.scaleOverride?{steps:this.options.scaleSteps,stepValue:this.options.scaleStepWidth,min:this.options.scaleStartValue,max:this.options.scaleStartValue+this.options.scaleStepsthis.options.scaleStepWidth}:e.calculateScaleRange(i,e.min([this.chart.width,this.chart.height])/2,this.options.scaleFontSize,this.options.scaleBeginAtZero,this.options.scaleIntegersOnly);e.extend(this.scale,s,{size:e.min([this.chart.width,this.chart.height]),xCenter:this.chart.width/2,yCenter:this.chart.height/2})},update:function(){this.calculateTotal(this.segments),e.each(this.segments,function(t){t.save()}),this.reflow(),this.render()},reflow:function(){e.extend(this.SegmentArc.prototype,{x:this.chart.width/2,y:this.chart.height/2}),this.updateScaleRange(this.segments),this.scale.update(),e.extend(this.scale,{xCenter:this.chart.width/2,yCenter:this.chart.height/2}),e.each(this.segments,function(t){t.update({outerRadius:this.scale.calculateCenterOffset(t.value)})},this)},draw:function(t){var i=t\|\|1;this.clear(),e.each(this.segments,function(t,e){t.transition({circumference:this.scale.getCircumference(),outerRadius:this.scale.calculateCenterOffset(t.value)},i),t.endAngle=t.startAngle+t.circumference,0===e&&(t.startAngle=1.5Math.PI),e<this.segments.length-1&&(this.segments[e+1].startAngle=t.endAngle),t.draw()},this),this.scale.draw()}})}.call(this),function(){"use strict";var t=this,i=t.Chart,e=i.helpers;i.Type.extend({name:"Radar",defaults:{scaleShowLine:!0,angleShowLineOut:!0,scaleShowLabels:!1,scaleBeginAtZero:!0,angleLineColor:"rgba(0,0,0,.1)",angleLineWidth:1,pointLabelFontFamily:"'Arial'",pointLabelFontStyle:"normal",pointLabelFontSize:10,pointLabelFontColor:"#666",pointDot:!0,pointDotRadius:3,pointDotStrokeWidth:1,pointHitDetectionRadius:20,datasetStroke:!0,datasetStrokeWidth:2,datasetFill:!0,legendTemplate:'<ul class="<%=name.toLowerCase()%>-legend"><% for (var i=0; i<datasets.length; i++){%><li><span style="background-color:<%=datasets[i].strokeColor%>"></span><%if(datasets[i].label){%><%=datasets[i].label%><%}%></li><%}%></ul>'},initialize:function(t){this.PointClass=i.Point.extend({strokeWidth:this.options.pointDotStrokeWidth,radius:this.options.pointDotRadius,display:this.options.pointDot,hitDetectionRadius:this.options.pointHitDetectionRadius,ctx:this.chart.ctx}),this.datasets=[],this.buildScale(t),this.options.showTooltips&&e.bindEvents(this,this.options.tooltipEvents,function(t){var i="mouseout"!==t.type?this.getPointsAtEvent(t):[];this.eachPoints(function(t){t.restore(["fillColor","strokeColor"])}),e.each(i,function(t){t.fillColor=t.highlightFill,t.strokeColor=t.highlightStroke}),this.showTooltip(i)}),e.each(t.datasets,function(i){var s={label:i.label\|\|null,fillColor:i.fillColor,strokeColor:i.strokeColor,pointColor:i.pointColor,pointStrokeColor:i.pointStrokeColor,points:[]};this.datasets.push(s),e.each(i.data,function(e,n){var o;this.scale.animation\|\|(o=this.scale.getPointPosition(n,this.scale.calculateCenterOffset(e))),s.points.push(new this.PointClass({value:e,label:t.labels[n],datasetLabel:i.label,x:this.options.animation?this.scale.xCenter:o.x,y:this.options.animation?this.scale.yCenter:o.y,strokeColor:i.pointStrokeColor,fillColor:i.pointColor,highlightFill:i.pointHighlightFill\|\|i.pointColor,highlightStroke:i.pointHighlightStroke\|\|i.pointStrokeColor}))},this)},this),this.render()},eachPoints:function(t){e.each(this.datasets,function(i){e.each(i.points,t,this)},this)},getPointsAtEvent:function(t){var i=e.getRelativePosition(t),s=e.getAngleFromPoint({x:this.scale.xCenter,y:this.scale.yCenter},i),n=2Math.PI/this.scale.valuesCount,o=Math.round((s.angle-1.5Math.PI)/n),a=[];return(o>=this.scale.valuesCount\|\|0>o)&&(o=0),s.distance<=this.scale.drawingArea&&e.each(this.datasets,function(t){a.push(t.points[o])}),a},buildScale:function(t){this.scale=new i.RadialScale({display:this.options.showScale,fontStyle:this.options.scaleFontStyle,fontSize:this.options.scaleFontSize,fontFamily:this.options.scaleFontFamily,fontColor:this.options.scaleFontColor,showLabels:this.options.scaleShowLabels,showLabelBackdrop:this.options.scaleShowLabelBackdrop,backdropColor:this.options.scaleBackdropColor,backdropPaddingY:this.options.scaleBackdropPaddingY,backdropPaddingX:this.options.scaleBackdropPaddingX,lineWidth:this.options.scaleShowLine?this.options.scaleLineWidth:0,lineColor:this.options.scaleLineColor,angleLineColor:this.options.angleLineColor,angleLineWidth:this.options.angleShowLineOut?this.options.angleLineWidth:0,pointLabelFontColor:this.options.pointLabelFontColor,pointLabelFontSize:this.options.pointLabelFontSize,pointLabelFontFamily:this.options.pointLabelFontFamily,pointLabelFontStyle:this.options.pointLabelFontStyle,height:this.chart.height,width:this.chart.width,xCenter:this.chart.width/2,yCenter:this.chart.height/2,ctx:this.chart.ctx,templateString:this.options.scaleLabel,labels:t.labels,valuesCount:t.datasets[0].data.length}),this.scale.setScaleSize(),this.updateScaleRange(t.datasets),this.scale.buildYLabels()},updateScaleRange:function(t){var i=function(){var i=[];return e.each(t,function(t){t.data?i=i.concat(t.data):e.each(t.points,function(t){i.push(t.value)})}),i}(),s=this.options.scaleOverride?{steps:this.options.scaleSteps,stepValue:this.options.scaleStepWidth,min:this.options.scaleStartValue,max:this.options.scaleStartValue+this.options.scaleSteps*this.options.scaleStepWidth}:e.calculateScaleRange(i,e.min([this.chart.width,this.chart.height])/2,this.options.scaleFontSize,this.options.scaleBeginAtZero,this.options.scaleIntegersOnly);e.extend(this.scale,s)},addData:function(t,i){this.scale.valuesCount++,e.each(t,function(t,e){var s=this.scale.getPointPosition(this.scale.valuesCount,this.scale.calculateCenterOffset(t));this.datasets[e].points.push(new this.PointClass({value:t,label:i,x:s.x,y:s.y,strokeColor:this.datasets[e].pointStrokeColor,fillColor:this.datasets[e].pointColor}))},this),this.scale.labels.push(i),this.reflow(),this.update()},removeData:function(){this.scale.valuesCount--,this.scale.labels.shift(),e.each(this.datasets,function(t){t.points.shift()},this),this.reflow(),this.update()},update:function(){this.eachPoints(function(t){t.save()}),this.reflow(),this.render()},reflow:function(){e.extend(this.scale,{width:this.chart.width,height:this.chart.height,size:e.min([this.chart.width,this.chart.height]),xCenter:this.chart.width/2,yCenter:this.chart.height/2}),this.updateScaleRange(this.datasets),this.scale.setScaleSize(),this.scale.buildYLabels()},draw:function(t){var i=t\|\|1,s=this.chart.ctx;this.clear(),this.scale.draw(),e.each(this.datasets,function(t){e.each(t.points,function(t,e){t.hasValue()&&t.transition(this.scale.getPointPosition(e,this.scale.calculateCenterOffset(t.value)),i)},this),s.lineWidth=this.options.datasetStrokeWidth,s.strokeStyle=t.strokeColor,s.beginPath(),e.each(t.points,function(t,i){0===i?s.moveTo(t.x,t.y):s.lineTo(t.x,t.y)},this),s.closePath(),s.stroke(),s.fillStyle=t.fillColor,s.fill(),e.each(t.points,function(t){t.hasValue()&&t.draw()})},this)}})}.call(this);	50.87 KB	2026-02-12 14:54
📄 LICENSE.md Copyright (c) 2013-2015 Nick Downie Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.	1.04 KB	2026-02-12 14:54
📄 README.md # Chart.js [![Build Status](https://travis-ci.org/nnnick/Chart.js.svg?branch=master)](https://travis-ci.org/nnnick/Chart.js) [![Code Climate](https://codeclimate.com/github/nnnick/Chart.js/badges/gpa.svg)](https://codeclimate.com/github/nnnick/Chart.js) Simple HTML5 Charts using the canvas element [chartjs.org](http://www.chartjs.org) ## Documentation You can find documentation at [chartjs.org/docs](http://www.chartjs.org/docs/). The markdown files that build the site are available under `/docs`. Please note - in some of the json examples of configuration you might notice some liquid tags - this is just for the generating the site html, please disregard. ## Bugs, issues and contributing Before submitting an issue or a pull request to the project, please take a moment to look over the [contributing guidelines](https://github.com/nnnick/Chart.js/blob/master/CONTRIBUTING.md) first. For support using Chart.js, please post questions with the [`chartjs` tag on Stack Overflow](http://stackoverflow.com/questions/tagged/chartjs). ## License Chart.js is available under the [MIT license](http://opensource.org/licenses/MIT).	1.12 KB	2026-02-12 14:54
📄 bower.json { "name": "Chart.js", "version": "1.0.2", "description": "Simple HTML5 Charts using the canvas element", "homepage": "https://github.com/nnnick/Chart.js", "author": "nnnick", "main": [ "Chart.js" ], "dependencies": {} }	239 B	2026-02-12 14:54
📁 docs	-	2026-02-12 14:54
📄 gulpfile.js var gulp = require('gulp'), concat = require('gulp-concat'), uglify = require('gulp-uglify'), util = require('gulp-util'), jshint = require('gulp-jshint'), size = require('gulp-size'), connect = require('gulp-connect'), replace = require('gulp-replace'), htmlv = require('gulp-html-validator'), inquirer = require('inquirer'), semver = require('semver'), exec = require('child_process').exec, fs = require('fs'), package = require('./package.json'), bower = require('./bower.json'); var srcDir = './src/'; /* * Usage : gulp build --types=Bar,Line,Doughnut * Output: - A built Chart.js file with Core and types Bar, Line and Doughnut concatenated together * - A minified version of this code, in Chart.min.js / gulp.task('build', function(){ // Default to all of the chart types, with Chart.Core first var srcFiles = [FileName('Core')], isCustom = !!(util.env.types), outputDir = (isCustom) ? 'custom' : '.'; if (isCustom){ util.env.types.split(',').forEach(function(type){ return srcFiles.push(FileName(type))}); } else{ // Seems gulp-concat remove duplicates - nice! // So we can use this to sort out dependency order - aka include Core first! srcFiles.push(srcDir+''); } return gulp.src(srcFiles) .pipe(concat('Chart.js')) .pipe(replace('{{ version }}', package.version)) .pipe(gulp.dest(outputDir)) .pipe(uglify({preserveComments:'some'})) .pipe(concat('Chart.min.js')) .pipe(gulp.dest(outputDir)); function FileName(moduleName){ return srcDir+'Chart.'+moduleName+'.js'; }; }); /* * Usage : gulp bump * Prompts: Version increment to bump * Output: - New version number written into package.json & bower.json / gulp.task('bump', function(complete){ util.log('Current version:', util.colors.cyan(package.version)); var choices = ['major', 'premajor', 'minor', 'preminor', 'patch', 'prepatch', 'prerelease'].map(function(versionType){ return versionType + ' (v' + semver.inc(package.version, versionType) + ')'; }); inquirer.prompt({ type: 'list', name: 'version', message: 'What version update would you like?', choices: choices }, function(res){ var increment = res.version.split(' ')[0], newVersion = semver.inc(package.version, increment); // Set the new versions into the bower/package object package.version = newVersion; bower.version = newVersion; // Write these to their own files, then build the output fs.writeFileSync('package.json', JSON.stringify(package, null, 2)); fs.writeFileSync('bower.json', JSON.stringify(bower, null, 2)); complete(); }); }); gulp.task('release', ['build'], function(){ exec('git tag -a v' + package.version); }); gulp.task('jshint', function(){ return gulp.src(srcDir + '.js') .pipe(jshint()) .pipe(jshint.reporter('default')); }); gulp.task('valid', function(){ return gulp.src('samples/.html') .pipe(htmlv()); }); gulp.task('library-size', function(){ return gulp.src('Chart.min.js') .pipe(size({ gzip: true })); }); gulp.task('module-sizes', function(){ return gulp.src(srcDir + '.js') .pipe(uglify({preserveComments:'some'})) .pipe(size({ showFiles: true, gzip: true })) }); gulp.task('watch', function(){ gulp.watch('./src/*', ['build']); }); gulp.task('test', ['jshint', 'valid']); gulp.task('size', ['library-size', 'module-sizes']); gulp.task('default', ['build', 'watch']); gulp.task('server', function(){ connect.server({ port: 8000 }); }); // Convenience task for opening the project straight from the command line gulp.task('_open', function(){ exec('open http://localhost:8000'); exec('subl .'); }); gulp.task('dev', ['server', 'default']);	3.56 KB	2026-02-12 14:54
📄 package.json { "name": "chart.js", "homepage": "http://www.chartjs.org", "description": "Simple HTML5 charts using the canvas element.", "version": "1.0.2", "main": "Chart.js", "repository": { "type": "git", "url": "https://github.com/nnnick/Chart.js.git" }, "dependences": {}, "devDependencies": { "gulp": "3.5.x", "gulp-concat": "~2.1.x", "gulp-connect": "~2.0.5", "gulp-jshint": "~1.5.1", "gulp-replace": "^0.4.0", "gulp-size": "~0.4.0", "gulp-uglify": "~0.2.x", "gulp-util": "~2.2.x", "gulp-html-validator": "^0.0.2", "inquirer": "^0.5.1", "semver": "^3.0.1" }, "spm": { "main": "Chart.js" } }	664 B	2026-02-12 14:54
📁 samples	-	2026-02-12 14:54
📁 src	-	2026-02-12 14:54

Terminal