text: /*!
  
  
   * 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.PI*2;
  
  
  			}
  
  
  
  
  
  			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=t*d01/(d01+d12),// scaling factor for triangle Ta
  
  
  				fb=t*d12/(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.PI*2);
  
  
  				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.PI*2);
  
  
  			// ctx.fill();
  
  
  
  
  
  			// ctx.beginPath();
  
  
  			// ctx.arc(this.controlPoints.outer.x,this.controlPoints.outer.y, 2, 0, Math.PI*2);
  
  
  			// 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 + 2*this.xPadding,
  
  
  				tooltipRectHeight = this.fontSize + 2*this.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.yPadding*2) + 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.xPadding*2);
  
  
  
  
  
  
  
  
  			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.fontSize*1.5*afterTitleIndex) + 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.PI*2) / 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.PI*2);
  
  
  								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.backdropPaddingX*2,
  
  
  									this.fontSize + this.backdropPaddingY*2
  
  
  								);
  
  
  							}
  
  
  							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)) - (2*options.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.PI*2)*(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);
  
  
  