Chart.js/Chart.js

/*!
 * Chart.js
 * http://chartjs.org/
 * Version: 1.0.2
 *
 * Copyright 2015 Nick Downie
 * Released under the MIT license
 * https://github.com/nnnick/Chart.js/blob/master/LICENSE.md
 */


(function() {

    "use strict";

    //Declare root variable - window in the browser, global on the server
    var root = this,
        previous = root.Chart;

    //Occupy the global variable of Chart, and create a simple base class
    var Chart = function(context) {
        var chart = this;
        this.canvas = context.canvas;

        this.ctx = context;

        //Variables global to the chart
        var computeDimension = function(element, dimension) {
            if (element['offset' + dimension]) {
                return element['offset' + dimension];
            } else {
                return document.defaultView.getComputedStyle(element).getPropertyValue(dimension);
            }
        };

        var width = this.width = computeDimension(context.canvas, 'Width') || context.canvas.width;
        var height = this.height = computeDimension(context.canvas, 'Height') || context.canvas.height;

        // Firefox requires this to work correctly
        context.canvas.width = width;
        context.canvas.height = height;

        width = this.width = context.canvas.width;
        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
            animationDuration: 1000,

            // 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,

            //String / Boolean - Hover mode for events.
            hoverMode: 'single', // 'label', 'dataset', 'false'

            //Function(event) - Custom hover handler
            onHover: null,

            //Function(event, clickedElements) - Custom click handler 
            onClick: null,

            //Function - Custom hover handler
            hoverAnimationDuration: 400,

            // 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 interaction events
            events: ["mousemove", "mouseout", "click", "touchstart", "touchmove", "touchend"],

            // String - Tooltip background colour
            tooltipBackgroundColor: "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: "<%if (datasetLabel){%><%=datasetLabel%>: <%}%><%= 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() {},

            // Color String - Used for undefined Colros
            defaultColor: 'rgba(0,0,0,0.1)',

        }
    };

    //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)) {
                var s = num.toString();
                if (s.indexOf("e-") < 0) {
                    // no exponent, e.g. 0.01
                    return s.split(".")[1].length;
                } else if (s.indexOf(".") < 0) {
                    // no decimal point, e.g. 1e-9
                    return parseInt(s.split("e-")[1]);
                } else {
                    // exponent and decimal point, e.g. 1.23e-9
                    var parts = s.split(".")[1].split("e-");
                    return parts[0].length + parseInt(parts[1]);
                }
            } 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 {
                next: {
                    x: MiddlePoint.x - fa * (AfterPoint.x - FirstPoint.x),
                    y: MiddlePoint.y - fa * (AfterPoint.y - FirstPoint.y)
                },
                previous: {
                    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 (templateString) {
                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,
                padding = parseInt(getStyle(container, 'padding-left')) + parseInt(getStyle(container, 'padding-right'));
            // TODO = check cross browser stuff with this.
            return container.clientWidth - padding;
        },
        getMaximumHeight = helpers.getMaximumHeight = function(domNode) {
            var container = domNode.parentNode,
                padding = parseInt(getStyle(container, 'padding-bottom')) + parseInt(getStyle(container, 'padding-top'));
            // TODO = check cross browser stuff with this.
            return container.clientHeight - padding;
        },
        getStyle = helpers.getStyle = function(el, property) {
            return el.currentStyle ?
                el.currentStyle[property] :
                document.defaultView.getComputedStyle(el, null).getPropertyValue(property);
        },
        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();
        },
        color = helpers.color = function(color) {
            if (!window.Color) {
                console.log('Color.js not found!');
                return color;
            }
            return window.Color(color);
        },
        isArray = helpers.isArray = function(obj) {
            if (!Array.isArray) {
                return Object.prototype.toString.call(arg) === '[object Array]';
            }
            return Array.isArray(obj);
        };

    //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(config, instance) {
        this.data = config.data;
        this.options = config.options;
        this.chart = instance;
        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 (this.options.responsive) {
            this.resize();
        }
        this.initialize.call(this);
    };

    //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
            Chart.animationService.cancelAnimation(this);
            return this;
        },
        resize: function() {
            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);

            return this;
        },
        redraw: noop,
        render: function(duration) {

            if (this.options.animation) {
                var animation = new Chart.Animation();
                animation.numSteps = (duration || this.options.animationDuration) / 16.66; //60 fps
                animation.easing = this.options.animationEasing;

                // render function
                animation.render = function(chartInstance, animationObject) {
                    var easingFunction = helpers.easingEffects[animationObject.easing];
                    var stepDecimal = animationObject.currentStep / animationObject.numSteps;
                    var easeDecimal = easingFunction(stepDecimal);

                    chartInstance.draw(easeDecimal, stepDecimal, animationObject.currentStep);
                };

                // user events
                animation.onAnimationProgress = this.options.onAnimationProgress;
                animation.onAnimationComplete = this.options.onAnimationComplete;

                Chart.animationService.addAnimation(this, animation, duration);
            } else {
                this.draw();
                this.options.onAnimationComplete.call(this);
            }
            return this;
        },
        eachElement: function(callback) {
            helpers.each(this.data.datasets, function(dataset, datasetIndex) {
                helpers.each(dataset.metaData, callback, this, dataset.metaData, datasetIndex);
            }, this);
        },
        eachValue: function(callback) {
            helpers.each(this.data.datasets, function(dataset, datasetIndex) {
                helpers.each(dataset.data, callback, this, datasetIndex);
            }, this);
        },
        eachDataset: function(callback) {
            helpers.each(this.data.datasets, callback, this);
        },
        getElementsAtEvent: function(e) {
            var elementsArray = [],
                eventPosition = helpers.getRelativePosition(e),
                datasetIterator = function(dataset) {
                    elementsArray.push(dataset.metaData[elementIndex]);
                },
                elementIndex;

            for (var datasetIndex = 0; datasetIndex < this.data.datasets.length; datasetIndex++) {
                for (elementIndex = 0; elementIndex < this.data.datasets[datasetIndex].metaData.length; elementIndex++) {
                    if (this.data.datasets[datasetIndex].metaData[elementIndex].inGroupRange(eventPosition.x, eventPosition.y)) {
                        helpers.each(this.data.datasets, datasetIterator);
                    }
                }
            }

            return elementsArray.length ? elementsArray : [];
        },
        // Get the single element that was clicked on
        // @return : An object containing the dataset index and element index of the matching element. Also contains the rectangle that was drawn
        getElementAtEvent: function(e) {
            var element = [];
            var eventPosition = helpers.getRelativePosition(e);

            for (var datasetIndex = 0; datasetIndex < this.data.datasets.length; ++datasetIndex) {
                for (var elementIndex = 0; elementIndex < this.data.datasets[datasetIndex].metaData.length; ++elementIndex) {
                    if (this.data.datasets[datasetIndex].metaData[elementIndex].inRange(eventPosition.x, eventPosition.y)) {
                        element.push(this.data.datasets[datasetIndex].metaData[elementIndex]);
                        return element;
                    }
                }
            }

            return [];
        },
        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];
        },
        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(config) {
                helpers.extend(config.options, merge(Chart.defaults.global, Chart.defaults[chartName], config.options || {}));
                return new ChartType(config, this);
            };
        } else {
            warn("Name not provided for this chart, so it hasn't been registered");
        }
        return parent;
    };

    Chart.Element = function(configuration) {
        extend(this, {
            _vm: {},
        });
        extend(this, configuration);
        this.initialize.apply(this, arguments);
    };
    extend(Chart.Element.prototype, {
        initialize: function() {},
        save: function() {
            this._vm = clone(this);
            delete this._vm._vm;
            delete this._vm._start;
            return this;
        },
        pivot: function() {
            if (this._start) {
                this._start = clone(this);
                helpers.extend(this._start, this._vm);
            }
            return this;
        },
        transition: function(ease) {
            if (!this._start) {
                if (!this._vm) {
                    this.save();
                }
                this._start = clone(this._vm);
            }

            each(this, function(value, key) {

                if (key[0] === '_' || !this.hasOwnProperty(key)) {
                    // Only non-underscored properties
                }

                // Init if doesn't exist
                else if (!this._vm[key]) {
                    this._vm[key] = value || null;
                }

                // No unnecessary computations
                else if (this[key] === this._vm[key]) {
                    // It's the same! Woohoo!
                }

                // Color transitions if possible
                else if (typeof value === 'string') {
                    try {
                        var color = helpers.color(this._start[key]).mix(helpers.color(this[key]), ease);
                        this._vm[key] = color.rgbString();
                    } catch (err) {
                        this._vm[key] = value;
                    }
                }
                // Number transitions
                else if (typeof value === 'number') {

                    this._vm[key] = ((this[key] - this._start[key]) * ease) + this._start[key];
                } else {
                    // Everything else
                    this._vm[key] = value;
                }

            }, this);

            if (ease === 1) {
                delete this._start;
            }
            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({
        inRange: function(mouseX, mouseY) {
            var vm = this._vm;
            var hoverRange = vm.hoverRadius + vm.radius;
            return ((Math.pow(mouseX - vm.x, 2) + Math.pow(mouseY - vm.y, 2)) < Math.pow(hoverRange, 2));
        },
        inGroupRange: function(mouseX) {
            var vm = this._vm;
            return (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + this.hoverRadius, 2));
        },
        tooltipPosition: function() {
            var vm = this._vm;
            return {
                x: vm.x,
                y: vm.y,
                padding: vm.radius + vm.borderWidth
            };
        },
        draw: function() {

            var vm = this._vm;
            var ctx = this._chart.ctx;

            if (vm.radius > 0 || vm.borderWidth > 0) {

                ctx.beginPath();

                ctx.arc(vm.x, vm.y, vm.radius, 0, Math.PI * 2);
                ctx.closePath();

                ctx.strokeStyle = vm.borderColor || Chart.defaults.global.defaultColor;
                ctx.lineWidth = vm.borderWidth || Chart.defaults.global.defaultColor;

                ctx.fillStyle = vm.backgroundColor || Chart.defaults.global.defaultColor;

                ctx.fill();
                ctx.stroke();
            }
        }
    });


    Chart.Line = Chart.Element.extend({
        draw: function() {

            var vm = this._vm;
            var ctx = this._chart.ctx;

            // Draw the background first (so the border is always on top)
            helpers.each(vm._points, function(point, index) {
                if (index === 0) {
                    ctx.moveTo(point._vm.x, point._vm.y);
                } else {
                    if (vm._tension > 0 || 1) {
                        var previous = this.previousPoint(point, vm._points, index);

                        ctx.bezierCurveTo(
                            previous._vm.controlPointNextX,
                            previous._vm.controlPointNextY,
                            point._vm.controlPointPreviousX,
                            point._vm.controlPointPreviousY,
                            point._vm.x,
                            point._vm.y
                        );
                    } else {
                        ctx.lineTo(point._vm.x, point._vm.y);
                    }
                }
            }, this);

            if (vm._points.length > 0) {
                //Round off the line by going to the base of the chart, back to the start, then fill.
                ctx.lineTo(vm._points[vm._points.length - 1].x, vm.scaleZero);
                ctx.lineTo(vm._points[0].x, vm.scaleZero);
                ctx.fillStyle = vm.backgroundColor || Chart.defaults.global.defaultColor;
                ctx.closePath();
                ctx.fill();
            }


            // Now draw the line between all the points with any borders
            ctx.lineWidth = vm.borderWidth || Chart.defaults.global.defaultColor;
            ctx.strokeStyle = vm.borderColor || Chart.defaults.global.defaultColor;
            ctx.beginPath();

            helpers.each(vm._points, function(point, index) {
                if (index === 0) {
                    ctx.moveTo(point._vm.x, point._vm.y);
                } else {
                    if (vm._tension > 0 || 1) {
                        var previous = this.previousPoint(point, vm._points, index);

                        ctx.bezierCurveTo(
                            previous._vm.controlPointNextX,
                            previous._vm.controlPointNextY,
                            point._vm.controlPointPreviousX,
                            point._vm.controlPointPreviousY,
                            point._vm.x,
                            point._vm.y
                        );
                    } else {
                        ctx.lineTo(point._vm.x, point._vm.y);
                    }
                }
            }, this);


            ctx.stroke();

        },
        previousPoint: function(point, collection, index) {
            return helpers.findPreviousWhere(collection, function() {
                return true;
            }, index) || point;
        },
    });

    Chart.Arc = Chart.Element.extend({
        inRange: function(chartX, chartY) {

            var vm = this._vm;

            var pointRelativePosition = helpers.getAngleFromPoint(vm, {
                x: chartX,
                y: chartY
            });

            //Check if within the range of the open/close angle
            var betweenAngles = (pointRelativePosition.angle >= vm.startAngle && pointRelativePosition.angle <= vm.endAngle),
                withinRadius = (pointRelativePosition.distance >= vm.innerRadius && pointRelativePosition.distance <= vm.outerRadius);

            return (betweenAngles && withinRadius);
            //Ensure within the outside of the arc centre, but inside arc outer
        },
        tooltipPosition: function() {
            var vm = this._vm;

            var centreAngle = vm.startAngle + ((vm.endAngle - vm.startAngle) / 2),
                rangeFromCentre = (vm.outerRadius - vm.innerRadius) / 2 + vm.innerRadius;
            return {
                x: vm.x + (Math.cos(centreAngle) * rangeFromCentre),
                y: vm.y + (Math.sin(centreAngle) * rangeFromCentre)
            };
        },
        draw: function() {

            var ctx = this._chart.ctx;
            var vm = this._vm;

            ctx.beginPath();

            ctx.arc(vm.x, vm.y, vm.outerRadius, vm.startAngle, vm.endAngle);

            ctx.arc(vm.x, vm.y, vm.innerRadius, vm.endAngle, vm.startAngle, true);

            ctx.closePath();
            ctx.strokeStyle = vm.borderColor;
            ctx.lineWidth = vm.borderWidth;

            ctx.fillStyle = vm.backgroundColor;

            ctx.fill();
            ctx.lineJoin = 'bevel';

            if (vm.borderWidth) {
                ctx.stroke();
            }
        }
    });

    Chart.Rectangle = Chart.Element.extend({
        draw: function() {

            var vm = this._vm;

            var ctx = this.ctx,
                halfWidth = vm.width / 2,
                leftX = vm.x - halfWidth,
                rightX = vm.x + halfWidth,
                top = vm.base - (vm.base - vm.y),
                halfStroke = vm.borderWidth / 2;

            // Canvas doesn't allow us to stroke inside the width so we can
            // adjust the sizes to fit if we're setting a stroke on the line
            if (vm.borderWidth) {
                leftX += halfStroke;
                rightX -= halfStroke;
                top += halfStroke;
            }

            ctx.beginPath();

            ctx.fillStyle = vm.backgroundColor;
            ctx.strokeStyle = vm.borderColor;
            ctx.lineWidth = vm.borderWidth;

            // It'd be nice to keep this class totally generic to any rectangle
            // and simply specify which border to miss out.
            ctx.moveTo(leftX, vm.base);
            ctx.lineTo(leftX, top);
            ctx.lineTo(rightX, top);
            ctx.lineTo(rightX, vm.base);
            ctx.fill();
            if (vm.borderWidth) {
                ctx.stroke();
            }
        },
        height: function() {
            var vm = this._vm;
            return vm.base - vm.y;
        },
        inRange: function(mouseX, mouseY) {
            var vm = this._vm;
            if (vm.y < vm.base) {
                return (mouseX >= vm.x - vm.width / 2 && mouseX <= vm.x + vm.width / 2) && (mouseY >= vm.y && mouseY <= vm.base);
            } else {
                return (mouseX >= vm.x - vm.width / 2 && mouseX <= vm.x + vm.width / 2) && (mouseY >= vm.base && mouseY <= vm.y);
            }
        },
        inGroupRange: function(mouseX) {
            var vm = this._vm;
            return (mouseX >= vm.x - vm.width / 2 && mouseX <= vm.x + vm.width / 2);
        },
        tooltipPosition: function() {
            var vm = this._vm;
            if (vm.y < vm.base) {
                return {
                    x: vm.x,
                    y: vm.y
                };
            } else {
                return {
                    x: vm.x,
                    y: vm.base
                };
            }
        },
    });

    Chart.Animation = Chart.Element.extend({
        currentStep: null, // the current animation step
        numSteps: 60, // default number of steps
        easing: "", // the easing to use for this animation
        render: null, // render function used by the animation service

        onAnimationProgress: null, // user specified callback to fire on each step of the animation 
        onAnimationComplete: null, // user specified callback to fire when the animation finishes
    });

    Chart.Tooltip = Chart.Element.extend({
        initialize: function() {
            var options = this._options;
            extend(this, {
                opacity: 0,
                xPadding: options.tooltipXPadding,
                yPadding: options.tooltipYPadding,
                xOffset: options.tooltipXOffset,
                backgroundColor: options.tooltipBackgroundColor,
                textColor: options.tooltipFontColor,
                _fontFamily: options.tooltipFontFamily,
                _fontStyle: options.tooltipFontStyle,
                fontSize: options.tooltipFontSize,
                titleTextColor: options.tooltipTitleFontColor,
                _titleFontFamily: options.tooltipTitleFontFamily,
                _titleFontStyle: options.tooltipTitleFontStyle,
                titleFontSize: options.tooltipTitleFontSize,
                caretHeight: options.tooltipCaretSize,
                cornerRadius: options.tooltipCornerRadius,
                legendColorBackground: options.multiTooltipKeyBackground,
                labels: [],
                colors: [],
            });
        },
        update: function() {

            var ctx = this._chart.ctx;

            switch (this._options.hoverMode) {
                case 'single':
                    helpers.extend(this, {
                        text: template(this._options.tooltipTemplate, this._active[0]),
                    });
                    var tooltipPosition = this._active[0].tooltipPosition();
                    helpers.extend(this, {
                        x: Math.round(tooltipPosition.x),
                        y: Math.round(tooltipPosition.y),
                        caretPadding: tooltipPosition.padding
                    });
                    break;

                case 'label':

                    // Tooltip Content

                    var dataArray,
                        dataIndex;

                    var labels = [],
                        colors = [];

                    for (var i = this._data.datasets.length - 1; i >= 0; i--) {
                        dataArray = this._data.datasets[i].metaData;
                        dataIndex = indexOf(dataArray, this._active[0]);
                        if (dataIndex !== -1) {
                            break;
                        }
                    }

                    var medianPosition = (function(index) {
                        // Get all the points at that particular index
                        var elements = [],
                            dataCollection,
                            xPositions = [],
                            yPositions = [],
                            xMax,
                            yMax,
                            xMin,
                            yMin;
                        helpers.each(this._data.datasets, function(dataset) {
                            dataCollection = dataset.metaData;
                            if (dataCollection[dataIndex] && dataCollection[dataIndex].hasValue()) {
                                elements.push(dataCollection[dataIndex]);
                            }
                        });

                        helpers.each(elements, function(element) {
                            xPositions.push(element._vm.x);
                            yPositions.push(element._vm.y);

                            //Include any colour information about the element
                            labels.push(helpers.template(this._options.multiTooltipTemplate, element));
                            colors.push({
                                fill: element._vm.backgroundColor,
                                stroke: element._vm.borderColor
                            });

                        }, 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);

                    // Apply for now
                    helpers.extend(this, {
                        x: medianPosition.x,
                        y: medianPosition.y,
                        labels: labels,
                        title: this._active.length ? this._active[0].label : '',
                        legendColors: colors,
                        legendBackgroundColor: this._options.multiTooltipKeyBackground,
                    });


                    // Calculate Appearance Tweaks

                    this.height = (labels.length * this.fontSize) + ((labels.length - 1) * (this.fontSize / 2)) + (this.yPadding * 2) + this.titleFontSize * 1.5;

                    var titleWidth = ctx.measureText(this.title).width,
                        //Label has a legend square as well so account for this.
                        labelWidth = longestText(ctx, this.font, 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;
                    }
                    break;
            }

            return this;
        },
        draw: function() {

            var ctx = this._chart.ctx;
            var vm = this._vm;

            switch (this._options.hoverMode) {
                case 'single':

                    ctx.font = fontString(vm.fontSize, vm._fontStyle, vm._fontFamily);

                    vm.xAlign = "center";
                    vm.yAlign = "above";

                    //Distance between the actual element.y position and the start of the tooltip caret
                    var caretPadding = vm.caretPadding || 2;

                    var tooltipWidth = ctx.measureText(vm.text).width + 2 * vm.xPadding,
                        tooltipRectHeight = vm.fontSize + 2 * vm.yPadding,
                        tooltipHeight = tooltipRectHeight + vm.caretHeight + caretPadding;

                    if (vm.x + tooltipWidth / 2 > this._chart.width) {
                        vm.xAlign = "left";
                    } else if (vm.x - tooltipWidth / 2 < 0) {
                        vm.xAlign = "right";
                    }

                    if (vm.y - tooltipHeight < 0) {
                        vm.yAlign = "below";
                    }

                    var tooltipX = vm.x - tooltipWidth / 2,
                        tooltipY = vm.y - tooltipHeight;

                    ctx.fillStyle = helpers.color(vm.backgroundColor).alpha(vm.opacity).rgbString();

                    // Custom Tooltips
                    if (this._custom) {
                        this._custom(this._vm);
                    } else {
                        switch (vm.yAlign) {
                            case "above":
                                //Draw a caret above the x/y
                                ctx.beginPath();
                                ctx.moveTo(vm.x, vm.y - caretPadding);
                                ctx.lineTo(vm.x + vm.caretHeight, vm.y - (caretPadding + vm.caretHeight));
                                ctx.lineTo(vm.x - vm.caretHeight, vm.y - (caretPadding + vm.caretHeight));
                                ctx.closePath();
                                ctx.fill();
                                break;
                            case "below":
                                tooltipY = vm.y + caretPadding + vm.caretHeight;
                                //Draw a caret below the x/y
                                ctx.beginPath();
                                ctx.moveTo(vm.x, vm.y + caretPadding);
                                ctx.lineTo(vm.x + vm.caretHeight, vm.y + caretPadding + vm.caretHeight);
                                ctx.lineTo(vm.x - vm.caretHeight, vm.y + caretPadding + vm.caretHeight);
                                ctx.closePath();
                                ctx.fill();
                                break;
                        }

                        switch (vm.xAlign) {
                            case "left":
                                tooltipX = vm.x - tooltipWidth + (vm.cornerRadius + vm.caretHeight);
                                break;
                            case "right":
                                tooltipX = vm.x - (vm.cornerRadius + vm.caretHeight);
                                break;
                        }

                        drawRoundedRectangle(ctx, tooltipX, tooltipY, tooltipWidth, tooltipRectHeight, vm.cornerRadius);

                        ctx.fill();

                        ctx.fillStyle = helpers.color(vm.textColor).alpha(vm.opacity).rgbString();
                        ctx.textAlign = "center";
                        ctx.textBaseline = "middle";
                        ctx.fillText(vm.text, tooltipX + tooltipWidth / 2, tooltipY + tooltipRectHeight / 2);

                    }
                    break;
                case 'label':

                    drawRoundedRectangle(ctx, vm.x, vm.y - vm.height / 2, vm.width, vm.height, vm.cornerRadius);
                    ctx.fillStyle = helpers.color(vm.backgroundColor).alpha(vm.opacity).rgbString();
                    ctx.fill();
                    ctx.closePath();

                    ctx.textAlign = "left";
                    ctx.textBaseline = "middle";
                    ctx.fillStyle = helpers.color(vm.titleTextColor).alpha(vm.opacity).rgbString();
                    ctx.font = fontString(vm.fontSize, vm._titleFontStyle, vm._titleFontFamily);
                    ctx.fillText(vm.title, vm.x + vm.xPadding, this.getLineHeight(0));

                    ctx.font = fontString(vm.fontSize, vm._fontStyle, vm._fontFamily);
                    helpers.each(vm.labels, function(label, index) {
                        ctx.fillStyle = helpers.color(vm.textColor).alpha(vm.opacity).rgbString();
                        ctx.fillText(label, vm.x + vm.xPadding + vm.fontSize + 3, this.getLineHeight(index + 1));

                        //A bit gnarly, but clearing this rectangle breaks when using explorercanvas (clears whole canvas)
                        //ctx.clearRect(vm.x + vm.xPadding, this.getLineHeight(index + 1) - vm.fontSize/2, vm.fontSize, vm.fontSize);
                        //Instead we'll make a white filled block to put the legendColour palette over.

                        ctx.fillStyle = helpers.color(vm.legendBackgroundColor).alpha(vm.opacity).rgbString();
                        ctx.fillRect(vm.x + vm.xPadding, this.getLineHeight(index + 1) - vm.fontSize / 2, vm.fontSize, vm.fontSize);

                        ctx.fillStyle = helpers.color(vm.legendColors[index].fill).alpha(vm.opacity).rgbString();
                        ctx.fillRect(vm.x + vm.xPadding, this.getLineHeight(index + 1) - vm.fontSize / 2, vm.fontSize, vm.fontSize);


                    }, this);
                    break;
            }
        },
        getLineHeight: function(index) {
            var baseLineHeight = this._vm.y - (this._vm.height / 2) + this._vm.yPadding,
                afterTitleIndex = index - 1;

            //If the index is zero, we're getting the title
            if (index === 0) {
                return baseLineHeight + this._vm.titleFontSize / 2;
            } else {
                return baseLineHeight + ((this._vm.fontSize * 1.5 * afterTitleIndex) + this._vm.fontSize / 2) + this._vm.titleFontSize * 1.5;
            }

        },
    });

    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) + 10 : 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 endpoint, excluding the space for x labels
            var cachedEndPoint = this.endPoint;

            // 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.endPoint = cachedEndPoint;
                    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) ? firstWidth / 2 : this.yLabelWidth;

            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) {
                        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);
                    }
                }
            }
        }
    });

    Chart.animationService = {
        frameDuration: 17,
        animations: [],
        dropFrames: 0,
        addAnimation: function(chartInstance, animationObject, duration) {

            if (!duration) {
                chartInstance.animating = true;
            }

            for (var index = 0; index < this.animations.length; ++index) {
                if (this.animations[index].chartInstance === chartInstance) {
                    // replacing an in progress animation
                    this.animations[index].animationObject = animationObject;
                    return;
                }
            }

            this.animations.push({
                chartInstance: chartInstance,
                animationObject: animationObject
            });

            // If there are no animations queued, manually kickstart a digest, for lack of a better word
            if (this.animations.length == 1) {
                helpers.requestAnimFrame.call(window, this.digestWrapper);
            }
        },
        // Cancel the animation for a given chart instance
        cancelAnimation: function(chartInstance) {
            var index = helpers.findNextWhere(this.animations, function(animationWrapper) {
                return animationWrapper.chartInstance === chartInstance;
            });

            if (index) {
                this.animations.splice(index, 1);
                chartInstance.animating = false;
            }
        },
        // calls startDigest with the proper context
        digestWrapper: function() {
            Chart.animationService.startDigest.call(Chart.animationService);
        },
        startDigest: function() {

            var startTime = Date.now();
            var framesToDrop = 0;

            if (this.dropFrames > 1) {
                framesToDrop = Math.floor(this.dropFrames);
                this.dropFrames -= framesToDrop;
            }

            for (var i = 0; i < this.animations.length; i++) {

                if (this.animations[i].animationObject.currentStep === null) {
                    this.animations[i].animationObject.currentStep = 0;
                }

                this.animations[i].animationObject.currentStep += 1 + framesToDrop;
                if (this.animations[i].animationObject.currentStep > this.animations[i].animationObject.numSteps) {
                    this.animations[i].animationObject.currentStep = this.animations[i].animationObject.numSteps;
                }

                this.animations[i].animationObject.render(this.animations[i].chartInstance, this.animations[i].animationObject);

                if (this.animations[i].animationObject.currentStep == this.animations[i].animationObject.numSteps) {
                    // executed the last frame. Remove the animation.
                    this.animations[i].chartInstance.animating = false;
                    this.animations.splice(i, 1);
                    // Keep the index in place to offset the splice
                    i--;
                }
            }

            var endTime = Date.now();
            var delay = endTime - startTime - this.frameDuration;
            var frameDelay = delay / this.frameDuration;

            if (frameDelay > 1) {
                this.dropFrames += frameDelay;
            }

            // Do we have more stuff to animate?
            if (this.animations.length > 0) {
                helpers.requestAnimFrame.call(window, this.digestWrapper);
            }
        }
    };

    // 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.update();
                        instance.render();
                    }
                });
            }, 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,

        //Number - Pixel width of the bar border
        barBorderWidth: 2,

        //Number - Spacing between each of the X value sets
        barValueSpacing: 5,

        //Number - Spacing between data sets within X values
        barDatasetSpacing: 1,

        //Boolean - Whether bars should be rendered on a percentage base
        relativeBars: false,

        //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].backgroundColor%>\"></span><%if(datasets[i].label){%><%=datasets[i].label%><%}%></li><%}%></ul>"

    };


    Chart.Type.extend({
        name: "Bar",
        defaults: defaultConfig,
        initialize: function(data) {

            // Save data as a source for updating of values & methods
            this.data = data;

            var options = this.options;

            var _this = this;

            // Custom Scale Methods and Options
            this.ScaleClass = Chart.Scale.extend({
                offsetGridLines: true,
                calculateBarBase: function(datasetIndex, index) {

                    var base = 0;

                    if (_this.options.stacked) {
                        var bar = _this.data.datasets[datasetIndex].metaData[index];
                        if (bar.value < 0) {
                            for (var i = 0; i < datasetIndex; i++) {
                                base += _this.data.datasets[i].metaData[index].value < base ? _this.data.datasets[i].metaData[index].value : 0;
                            }
                        } else {
                            for (var i = 0; i < datasetIndex; i++) {
                                base += _this.data.datasets[i].metaData[index].value > base ? _this.data.datasets[i].metaData[index].value : 0;
                            }
                        }
                        return this.calculateY(base);
                    }

                    base = this.endPoint;

                    if (this.beginAtZero || ((this.min <= 0 && this.max >= 0) || (this.min >= 0 && this.max <= 0))) {
                        base = this.calculateY(0);
                        base += _this.options.scaleGridLineWidth;
                    } else if (this.min < 0 && this.max < 0) {
                        // All values are negative. Use the top as the base
                        base = this.startPoint;
                    }

                    return base;

                },
                calculateBarX: function(datasetCount, datasetIndex, elementIndex) {
                    var xWidth = this.calculateBaseWidth(),
                        xAbsolute = this.calculateX(elementIndex) - (xWidth / 2),
                        barWidth = this.calculateBarWidth(datasetCount);

                    if (_this.options.stacked) {
                        return xAbsolute + barWidth / 2;
                    }

                    return xAbsolute + (barWidth * datasetIndex) + (datasetIndex * options.barDatasetSpacing) + barWidth / 2;
                },
                calculateBarY: function(datasets, datasetIndex, barIndex, value) {

                    if (_this.options.stacked) {

                        var sumPos = 0,
                            sumNeg = 0;

                        for (var i = 0; i < datasetIndex; i++) {
                            if (datasets[i].metaData[barIndex].value < 0) {
                                sumNeg += datasets[i].metaData[barIndex].value || 0;
                            } else {
                                sumPos += datasets[i].metaData[barIndex].value || 0;
                            }
                        }

                        if (value < 0) {
                            return this.calculateY(sumNeg + value);
                        } else {
                            return this.calculateY(sumPos + value);
                        }

                        /*if (options.relativeBars) {
                            offset = offset / sum * 100;
                        }*/

                        return this.calculateY(0);
                    }

                    var offset = 0;

                    for (i = datasetIndex; i < datasets.length; i++) {
                        if (i === datasetIndex && value) {
                            offset += value;
                        } else {
                            offset = offset + (datasets[i].metaData[barIndex].value);
                        }
                    }

                    return this.calculateY(value);
                },
                calculateBaseWidth: function() {
                    return (this.calculateX(1) - this.calculateX(0)) - (2 * options.barValueSpacing);
                },
                calculateBaseHeight: function() {
                    return (this.calculateY(1) - this.calculateY(0));
                },
                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);

                    if (_this.options.stacked) {
                        return baseWidth;
                    }
                    return (baseWidth / datasetCount);
                },
            });

            // Events
            helpers.bindEvents(this, this.options.tooltipEvents, this.onHover);

            //Declare the extension of the default point, to cater for the options passed in to the constructor
            this.BarClass = Chart.Rectangle.extend({
                ctx: this.chart.ctx,
            });

            // Build Scale
            this.buildScale(this.data.labels);

            //Create a new bar for each piece of data
            helpers.each(this.data.datasets, function(dataset, datasetIndex) {
                dataset.metaData = [];
                helpers.each(dataset.data, function(dataPoint, index) {
                    dataset.metaData.push(new this.BarClass());
                }, this);
            }, this);

            // Set defaults for bars
            this.eachElement(function(bar, index, dataset, datasetIndex) {
                helpers.extend(bar, {
                    base: this.scale.zeroPoint,
                    width: this.scale.calculateBarWidth(this.data.datasets.length),
                    x: this.scale.calculateBarX(this.data.datasets.length, datasetIndex, index),
                    y: this.scale.calculateBarY(this.data.datasets, datasetIndex, index, this.data.datasets[datasetIndex].data[index]),
                    _datasetIndex: datasetIndex,
                    _index: index,
                });
                // Copy to view model
                bar.save();
            }, this);

            // Create tooltip instance exclusively for this chart with some defaults.
            this.tooltip = new Chart.Tooltip({
                _chart: this.chart,
                _data: this.data,
                _options: this.options,
            }, this);

            // Update the chart with the latest data.
            this.update();
        },
        onHover: function(e) {


            // If exiting chart
            if (e.type == 'mouseout') {
                return this;
            }

            this.lastActive = this.lastActive || [];

            // Find Active Elements
            this.active = function() {
                switch (this.options.hoverMode) {
                    case 'single':
                        return this.getElementAtEvent(e);
                    case 'label':
                        return this.getElementsAtEvent(e);
                    case 'dataset':
                        return this.getDatasetAtEvent(e);
                    default:
                        return e;
                }
            }.call(this);

            // On Hover hook
            if (this.options.onHover) {
                this.options.onHover.call(this, this.active);
            }

            // Remove styling for last active (even if it may still be active)
            if (this.lastActive.length) {
                switch (this.options.hoverMode) {
                    case 'single':
                        this.lastActive[0].backgroundColor = this.data.datasets[this.lastActive[0]._datasetIndex].backgroundColor;
                        this.lastActive[0].borderColor = this.data.datasets[this.lastActive[0]._datasetIndex].borderColor;
                        break;
                    case 'label':
                        for (var i = 0; i < this.lastActive.length; i++) {
                            this.lastActive[i].backgroundColor = this.data.datasets[this.lastActive[i]._datasetIndex].backgroundColor;
                            this.lastActive[i].borderColor = this.data.datasets[this.lastActive[i]._datasetIndex].borderColor;
                        }
                        break;
                    case 'dataset':
                        break;
                    default:
                        // Don't change anything
                }
            }

            // Built in hover styling
            if (this.active.length && this.options.hoverMode) {
                switch (this.options.hoverMode) {
                    case 'single':
                        this.active[0].backgroundColor = this.data.datasets[this.active[0]._datasetIndex].hoverBackgroundColor || helpers.color(this.active[0].backgroundColor).saturate(0.8).darken(0.2).rgbString();
                        this.active[0].borderColor = this.data.datasets[this.active[0]._datasetIndex].hoverBorderColor || helpers.color(this.active[0].borderColor).saturate(0.8).darken(0.2).rgbString();
                        break;
                    case 'label':
                        for (var i = 0; i < this.active.length; i++) {
                            this.active[i].backgroundColor = this.data.datasets[this.active[i]._datasetIndex].hoverBackgroundColor || helpers.color(this.active[i].backgroundColor).saturate(0.8).darken(0.2).rgbString();
                            this.active[i].borderColor = this.data.datasets[this.active[i]._datasetIndex].hoverBorderColor || helpers.color(this.active[i].borderColor).saturate(0.8).darken(0.2).rgbString();
                        }
                        break;
                    case 'dataset':
                        break;
                    default:
                        // Don't change anything
                }
            }


            // Built in Tooltips
            if (this.options.showTooltips) {

                // The usual updates
                this.tooltip.initialize();

                // Active
                if (this.active.length) {
                    helpers.extend(this.tooltip, {
                        opacity: 1,
                        _active: this.active,
                    });

                    this.tooltip.update();
                } else {
                    // Inactive
                    helpers.extend(this.tooltip, {
                        opacity: 0,
                    });
                }
            }


            this.tooltip.pivot();

            // Hover animations
            if (!this.animating) {
                var changed;

                helpers.each(this.active, function(element, index) {
                    if (element !== this.lastActive[index]) {
                        changed = true;
                    }
                }, this);

                // If entering, leaving, or changing elements, animate the change via pivot
                if ((!this.lastActive.length && this.active.length) ||
                    (this.lastActive.length && !this.active.length) ||
                    (this.lastActive.length && this.active.length && changed)) {

                    this.stop();
                    this.render(this.options.hoverAnimationDuration);
                }
            }

            // Remember Last Active
            this.lastActive = this.active;
            return this;
        },
        update: function() {

            this.scale.update();

            this.eachElement(function(bar, index, dataset, datasetIndex) {
                helpers.extend(bar, {
                    value: this.data.datasets[datasetIndex].data[index],
                });
                bar.pivot();
            }, this);

            this.eachElement(function(bar, index, dataset, datasetIndex) {
                helpers.extend(bar, {
                    base: this.scale.calculateBarBase(datasetIndex, index),
                    x: this.scale.calculateBarX(this.data.datasets.length, datasetIndex, index),
                    y: this.scale.calculateBarY(this.data.datasets, datasetIndex, index, this.data.datasets[datasetIndex].data[index]),
                    width: this.scale.calculateBarWidth(this.data.datasets.length),
                    label: this.data.labels[index],
                    datasetLabel: this.data.datasets[datasetIndex].label,
                    borderColor: this.data.datasets[datasetIndex].borderColor,
                    borderWidth: this.data.datasets[datasetIndex].borderWidth,
                    backgroundColor: this.data.datasets[datasetIndex].backgroundColor,
                    _datasetIndex: datasetIndex,
                    _index: index,
                });
                bar.pivot();
            }, this);

            this.render();
        },
        buildScale: function(labels) {
            var self = this;

            var dataTotal = function() {
                var values = [];
                var negativeValues = [];

                if (self.options.stacked) {
                    self.eachValue(function(value, index) {
                        values[index] = values[index] || 0;
                        negativeValues[index] = negativeValues[index] || 0;
                        if (self.options.relativeBars) {
                            values[index] = 100;
                        } else {
                            if (value < 0) {
                                negativeValues[index] += value;
                            } else {
                                values[index] += value;
                            }
                        }
                    });
                    return values.concat(negativeValues);
                }

                self.eachValue(function(value, index) {
                    values.push(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.borderWidth,
                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);
        },
        // This should be incorportated into the init as something like a default value. "Reflow" seems like a weird word for a fredraw function
        redraw: function() {
            var base = this.scale.zeroPoint;
            this.eachElement(function(element, index, datasetIndex) {
                helpers.extend(element, {
                    y: base,
                    base: base
                });
            });
            this.render();
        },
        draw: function(ease) {

            var easingDecimal = ease || 1;
            this.clear();

            this.scale.draw(easingDecimal);

            //Draw all the bars for each dataset
            this.eachElement(function(bar, index, datasetIndex) {
                bar.transition(easingDecimal).draw();
            }, this);

            // Finally draw the tooltip
            this.tooltip.transition(easingDecimal).draw();
        }
    });


}).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
        borderWidth: 2,

        //The percentage of the chart that we cut out of the middle.
        cutoutPercentage: 50,

        // The duration of animations triggered by hover events
        hoverAnimationDuration: 400,

        //String - Animation easing effect
        animationEasing: "easeOutQuart",

        //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].backgroundColor%>\"></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) {

            // Save data as a source for updating of values & methods
            this.data = data;

            // Slice Type and defaults
            this.Slice = Chart.Arc.extend({
                _chart: this.chart,
                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, this.onHover);
            }

            // Create new slice for each piece of data
            this.data.metaData = [];
            helpers.each(this.data.data, function(slice, index) {
                var metaSlice = new this.Slice();
                if (typeof slice == 'number') {
                    helpers.extend(metaSlice, {
                        value: slice
                    });
                } else {
                    helpers.extend(metaSlice, slice);
                }
                helpers.extend(metaSlice, {
                    startAngle: Math.PI * 1.5,
                    circumference: (this.options.animateRotate) ? 0 : this.calculateCircumference(metaSlice.value),
                    outerRadius: (this.options.animateScale) ? 0 : this.outerRadius,
                    innerRadius: (this.options.animateScale) ? 0 : (this.outerRadius / 100) * this.options.percentageInnerCutout,
                });
                if (!metaSlice.backgroundColor) {
                    slice.backgroundColor = 'hsl(' + (360 * index / data.length) + ', 100%, 50%)';
                }
                metaSlice.save();
                this.data.metaData.push(metaSlice);
            }, this);

            // Create tooltip instance exclusively for this chart with some defaults.
            this.tooltip = new Chart.Tooltip({
                _chart: this.chart,
                _data: this.data,
                _options: this.options,
            }, this);

            this.update();
        },
        onHover: function(e) {

            // If exiting chart
            if (e.type == 'mouseout') {
                return this;
            }

            this.lastActive = this.lastActive || [];

            // Find Active Elements
            this.active = this.getSliceAtEvent(e);

            // On Hover hook
            if (this.options.onHover) {
                this.options.onHover.call(this, this.active);
            }

            // Remove styling for last active (even if it may still be active)
            if (this.lastActive.length) {
                this.lastActive[0].backgroundColor = this.data.data[this.lastActive[0]._index].backgroundColor;
            }

            // Built in hover styling
            if (this.active.length && this.options.hoverMode) {
                this.active[0].backgroundColor = this.data.data[this.active[0]._index].hoverBackgroundColor || helpers.color(this.data.data[this.active[0]._index].backgroundColor).saturate(0.5).darken(0.35).rgbString();
            }

            // Built in Tooltips
            if (this.options.showTooltips) {

                // The usual updates
                this.tooltip.initialize();

                // Active
                if (this.active.length) {
                    helpers.extend(this.tooltip, {
                        opacity: 1,
                        _active: this.active,
                    });

                    this.tooltip.update();
                } else {
                    // Inactive
                    helpers.extend(this.tooltip, {
                        opacity: 0,
                    });
                }
            }


            // Hover animations
            this.tooltip.pivot();

            if (!this.animating) {
                var changed;

                helpers.each(this.active, function(element, index) {
                    if (element !== this.lastActive[index]) {
                        changed = true;
                    }
                }, this);

                // If entering, leaving, or changing elements, animate the change via pivot
                if ((!this.lastActive.length && this.active.length) ||
                    (this.lastActive.length && !this.active.length) ||
                    (this.lastActive.length && this.active.length && changed)) {

                    this.stop();
                    this.render(this.options.hoverAnimationDuration);
                }
            }

            // Remember Last Active
            this.lastActive = this.active;
            return this;

        },
        getSliceAtEvent: function(e) {
            var elements = [];

            var location = helpers.getRelativePosition(e);

            helpers.each(this.data.metaData, function(slice, index) {
                if (slice.inRange(location.x, location.y)) elements.push(slice);
            }, this);
            return elements;
        },
        calculateCircumference: function(value) {
            if (this.total > 0) {
                return (Math.PI * 2) * (value / this.total);
            } else {
                return 0;
            }
        },
        update: function() {

            // Calc Total
            this.total = 0;
            helpers.each(this.data.data, function(slice) {
                this.total += Math.abs(slice.value);
            }, this);

            this.outerRadius = (helpers.min([this.chart.width, this.chart.height]) - this.options.borderWidth / 2) / 2;

            // Map new data to data points
            helpers.each(this.data.metaData, function(slice, index) {

                var datapoint = this.data.data[index];

                helpers.extend(slice, {
                    _index: index,
                    x: this.chart.width / 2,
                    y: this.chart.height / 2,
                    value: datapoint.value,
                    label: datapoint.label,
                    circumference: this.calculateCircumference(datapoint.value),
                    outerRadius: this.outerRadius,
                    innerRadius: (this.outerRadius / 100) * this.options.cutoutPercentage,

                    backgroundColor: datapoint.backgroundColor,
                    hoverBackgroundColor: datapoint.hoverBackgroundColor || datapoint.backgroundColor,
                    borderWidth: this.options.borderWidth,
                    borderColor: this.options.segmentStrokeColor,
                });

                helpers.extend(slice, {
                    endAngle: slice.startAngle + slice.circumference,
                });

                if (index === 0) {
                    slice.startAngle = Math.PI * 1.5;
                }

                //Check to see if it's the last slice, if not get the next and update its start angle
                if (index < this.data.data.length - 1) {
                    this.data.metaData[index + 1].startAngle = slice.endAngle;
                }

                slice.pivot();

            }, this);

            this.render();
        },
        draw: function(easeDecimal) {
            easeDecimal = easeDecimal || 1;
            this.clear();

            helpers.each(this.data.metaData, function(slice, index) {
                slice.transition(easeDecimal).draw();
            }, this);

            this.tooltip.transition(easeDecimal).draw();
        }
    });

    Chart.types.Doughnut.extend({
        name: "Pie",
        defaults: helpers.merge(defaultConfig, {
            cutoutPercentage: 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 to horizontally center the label and point dot inside the grid
        offsetGridLines: false,



        //Boolean - Whether to stack the lines essentially creating a stacked area chart.
        stacked: false,


        //Number - Tension of the bezier curve between points
        tension: 0.4,


        //Number - Radius of each point dot in pixels
        pointRadius: 3,
        //Number - Pixel width of point dot border
        pointBorderWidth: 1,
        //Number - Pixel width of point on hover
        pointHoverRadius: 5,
        //Number - Pixel width of point dot border on hover
        pointHoverBorderWidth: 2,
        pointBackgroundColor: Chart.defaults.global.defaultColor,
        pointBorderColor: Chart.defaults.global.defaultColor,

        //Number - amount extra to add to the radius to cater for hit detection outside the drawn point
        pointHitRadius: 6,

        //Number - Pixel width of dataset border
        borderWidth: 2,
        //Number - Pixel width of dataset border on hover
        hoverBorderWidth: 2,

        //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].borderColor%>\"></span><%if(datasets[i].label){%><%=datasets[i].label%><%}%></li><%}%></ul>",



    };


    Chart.Type.extend({
        name: "Line",
        defaults: defaultConfig,
        initialize: function() {

            // Events
            helpers.bindEvents(this, this.options.events, this.events);

            var _this = this;

            // Build Scale
            this.ScaleClass = Chart.Scale.extend({
                calculatePointY: function(index, datasetIndex) {

                    var value = _this.data.datasets[datasetIndex].data[index];

                    if (_this.options.stacked) {
                        var offsetPos = 0;
                        var offsetNeg = 0;
                        for (var i = 0; i < datasetIndex; i++) {
                            if (_this.data.datasets[i].data[index] < 0) {
                                offsetNeg += _this.data.datasets[i].data[index];
                            } else {
                                offsetPos += _this.data.datasets[i].data[index];
                            }
                        }
                        if (value < 0) {
                            return this.calculateY(offsetNeg + value);
                        } else {
                            return this.calculateY(offsetPos + value);
                        }
                    }

                    return this.calculateY(value);
                }
            });
            this.buildScale(this.data.labels);


            //Create a new line and its points for each dataset and piece of data
            helpers.each(this.data.datasets, function(dataset, datasetIndex) {
                dataset.metaDataset = new Chart.Line();
                dataset.metaData = [];
                helpers.each(dataset.data, function(dataPoint, index) {
                    dataset.metaData.push(new Chart.Point());
                }, this);
            }, this);

            // Set defaults for lines
            this.eachDataset(function(dataset, datasetIndex) {
                helpers.extend(dataset.metaDataset, {
                    _points: dataset.metaData,
                    _datasetIndex: datasetIndex,
                    _chart: this.chart,
                });
                // Fill in dataset defaults from options
                helpers.extend(dataset, helpers.merge(this.options, dataset));
                // Copy to view modele
                dataset.metaDataset.save();
            }, this);

            // Set defaults for points
            this.eachElement(function(point, index, dataset, datasetIndex) {
                helpers.extend(point, {
                    x: this.scale.calculateX(index),
                    y: this.scale.calculateY(0),
                    _datasetIndex: datasetIndex,
                    _index: index,
                    _chart: this.chart
                });

                // Default bezier control points
                helpers.extend(point, {
                    controlPointPreviousX: this.previousPoint(dataset, index).x,
                    controlPointPreviousY: this.nextPoint(dataset, index).y,
                    controlPointNextX: this.previousPoint(dataset, index).x,
                    controlPointNextY: this.nextPoint(dataset, index).y,
                });
                // Copy to view model
                point.save();
            }, this);

            // Create tooltip instance exclusively for this chart with some defaults.
            this.tooltip = new Chart.Tooltip({
                _chart: this.chart,
                _data: this.data,
                _options: this.options,
            }, this);

            this.update();
        },
        nextPoint: function(collection, index) {
            return collection[index - 1] || collection[index];
        },
        previousPoint: function(collection, index) {
            return collection[index + 1] || collection[index];
        },
        update: function() {

            // Update the scale
            this.scale.update();

            // Update the lines
            this.eachDataset(function(dataset, datasetIndex) {
                helpers.extend(dataset.metaDataset, {
                    // Utility
                    _datasetIndex: datasetIndex,
                    // Data
                    _points: dataset.metaData,
                    // Geometry
                    scaleTop: this.scale.startPoint,
                    scaleBottom: this.scale.endPoint,
                    scaleZero: this.scale.calculateY(0),
                    // Appearance
                    tension: dataset.tension || this.options.tension,
                    backgroundColor: dataset.backgroundColor || this.options.backgroundColor,
                    borderWidth: dataset.borderWidth || this.options.borderWidth,
                    borderColor: dataset.borderColor || this.options.borderColor,
                });
                dataset.metaDataset.pivot();
            });

            // Update the points
            this.eachElement(function(point, index, dataset, datasetIndex) {
                helpers.extend(point, {
                    // Utility
                    _chart: this.chart,
                    _datasetIndex: datasetIndex,
                    _index: index,
                    // Data
                    label: this.data.labels[index],
                    value: this.data.datasets[datasetIndex].data[index],
                    datasetLabel: this.data.datasets[datasetIndex].label,
                    // Geometry
                    offsetGridLines: this.options.offsetGridLines,
                    x: this.scale.calculateX(index),
                    y: this.scale.calculatePointY(index, datasetIndex),
                    tension: this.data.datasets[datasetIndex].metaDataset.tension,
                    // Appearnce
                    radius: this.data.datasets[datasetIndex].pointRadius || this.options.pointRadius,
                    backgroundColor: this.data.datasets[datasetIndex].pointBackgroundColor || this.options.pointBackgroundColor,
                    borderWidth: this.data.datasets[datasetIndex].pointBorderWidth || this.options.pointBorderWidth,
                    // Tooltip
                    hoverRadius: this.data.datasets[datasetIndex].pointHitRadius || this.options.pointHitRadius,
                });
            }, this);

            // Update control points for the bezier curve
            this.eachElement(function(point, index, dataset, datasetIndex) {
                var controlPoints = helpers.splineCurve(
                    this.previousPoint(dataset, index),
                    point,
                    this.nextPoint(dataset, index),
                    point.tension
                );

                point.controlPointPreviousX = controlPoints.previous.x;
                point.controlPointNextX = controlPoints.next.x;

                // Prevent the bezier going outside of the bounds of the graph
                // Cap puter bezier handles to the upper/lower scale bounds
                if (controlPoints.next.y > this.scale.endPoint) {
                    point.controlPointNextY = this.scale.endPoint;
                } else if (controlPoints.next.y < this.scale.startPoint) {
                    point.controlPointNextY = this.scale.startPoint;
                } else {
                    point.controlPointNextY = controlPoints.next.y;
                }

                // Cap inner bezier handles to the upper/lower scale bounds
                if (controlPoints.previous.y > this.scale.endPoint) {
                    point.controlPointPreviousY = this.scale.endPoint;
                } else if (controlPoints.previous.y < this.scale.startPoint) {
                    point.controlPointPreviousY = this.scale.startPoint;
                } else {
                    point.controlPointPreviousY = controlPoints.previous.y;
                }
                // Now pivot the point for animation
                point.pivot();
            }, this);

            this.render();
        },
        buildScale: function(labels) {
            var self = this;

            var dataTotal = function() {
                var values = [];
                var negativeValues = [];

                if (self.options.stacked) {
                    self.eachValue(function(value, index) {
                        values[index] = values[index] || 0;
                        negativeValues[index] = negativeValues[index] || 0;
                        if (self.options.relativePoints) {
                            values[index] = 100;
                        } else {
                            if (value < 0) {
                                negativeValues[index] += value;
                            } else {
                                values[index] += value;
                            }
                        }
                    });
                    return values.concat(negativeValues);
                }

                self.eachValue(function(value, index) {
                    values.push(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,
                offsetGridLines: this.options.offsetGridLines,
                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: this.data.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.pointRadius + this.options.pointBorderWidth,
                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);
        },
        redraw: function() {

        },
        draw: function(ease) {

            var easingDecimal = ease || 1;
            this.clear();

            this.scale.draw(easingDecimal);

            // reverse for-loop for proper stacking
            for (var i = this.data.datasets.length - 1; i >= 0; i--) {

                var dataset = this.data.datasets[i];
                var datasetIndex = i;

                // Transition Point Locations
                helpers.each(dataset.metaData, function(point, index) {
                    point.transition(easingDecimal);
                }, this);

                // Transition and Draw the line
                dataset.metaDataset.transition(easingDecimal).draw();

                // Draw the points
                helpers.each(dataset.metaData, function(point) {
                    point.draw();
                });
            }

            // Finally draw the tooltip
            this.tooltip.transition(easingDecimal).draw();
        },
        events: function(e) {

            // If exiting chart
            if (e.type == 'mouseout') {
                return this;
            }

            this.lastActive = this.lastActive || [];

            // Find Active Elements
            this.active = function() {
                switch (this.options.hoverMode) {
                    case 'single':
                        return this.getElementAtEvent(e);
                    case 'label':
                        return this.getElementsAtEvent(e);
                    case 'dataset':
                        return this.getDatasetAtEvent(e);
                    default:
                        return e;
                }
            }.call(this);

            // On Hover hook
            if (this.options.onHover) {
                this.options.onHover.call(this, this.active);
            }

            if (e.type == 'mouseup' || e.type == 'click') {
                if (this.options.onClick) {
                    this.options.onClick.call(this, e, this.active);
                }
            }

            var dataset;
            // Remove styling for last active (even if it may still be active)
            if (this.lastActive.length) {
                switch (this.options.hoverMode) {
                    case 'single':
                        dataset = this.data.datasets[this.lastActive[0]._datasetIndex];

                        this.lastActive[0].radius = dataset.pointRadius;
                        this.lastActive[0].backgroundColor = dataset.pointBackgroundColor;
                        this.lastActive[0].borderColor = dataset.pointBorderColor;
                        this.lastActive[0].borderWidth = dataset.pointBorderWidth;
                        break;
                    case 'label':
                        for (var i = 0; i < this.lastActive.length; i++) {
                            dataset = this.data.datasets[this.lastActive[i]._datasetIndex];

                            this.lastActive[i].radius = dataset.pointRadius;
                            this.lastActive[i].backgroundColor = dataset.pointBackgroundColor;
                            this.lastActive[i].borderColor = dataset.pointBorderColor;
                            this.lastActive[i].borderWidth = dataset.pointBorderWidth;
                        }
                        break;
                    case 'dataset':
                        break;
                    default:
                        // Don't change anything
                }
            }

            // Built in hover styling
            if (this.active.length && this.options.hoverMode) {
                switch (this.options.hoverMode) {
                    case 'single':
                        dataset = this.data.datasets[this.active[0]._datasetIndex];

                        this.active[0].radius = dataset.pointHoverRadius || dataset.pointRadius + 2;
                        this.active[0].backgroundColor = dataset.pointHoverBackgroundColor || helpers.color(dataset.pointBackgroundColor).saturate(0.5).darken(0.35).rgbString();
                        this.active[0].borderColor = dataset.pointHoverBorderColor || helpers.color(dataset.pointBorderColor).saturate(0.5).darken(0.35).rgbString();
                        this.active[0].borderWidth = dataset.pointHoverBorderWidth || dataset.pointBorderWidth + 2;
                        break;
                    case 'label':
                        for (var i = 0; i < this.active.length; i++) {
                            dataset = this.data.datasets[this.active[i]._datasetIndex];

                            this.active[i].radius = dataset.pointHoverRadius || dataset.pointRadius + 2;
                            this.active[i].backgroundColor = dataset.pointHoverBackgroundColor || helpers.color(dataset.pointBackgroundColor).saturate(0.5).darken(0.35).rgbString();
                            this.active[i].borderColor = dataset.pointHoverBorderColor || helpers.color(dataset.pointBorderColor).saturate(0.5).darken(0.35).rgbString();
                            this.active[i].borderWidth = dataset.pointHoverBorderWidth || dataset.pointBorderWidth + 2;
                        }
                        break;
                    case 'dataset':
                        break;
                    default:
                        // Don't change anything
                }
            }


            // Built in Tooltips
            if (this.options.showTooltips) {

                // The usual updates
                this.tooltip.initialize();

                // Active
                if (this.active.length) {
                    helpers.extend(this.tooltip, {
                        opacity: 1,
                        _active: this.active,
                    });

                    this.tooltip.update();
                } else {
                    // Inactive
                    helpers.extend(this.tooltip, {
                        opacity: 0,
                    });
                }
            }


            // Hover animations
            this.tooltip.pivot();

            if (!this.animating) {
                var changed;

                helpers.each(this.active, function(element, index) {
                    if (element !== this.lastActive[index]) {
                        changed = true;
                    }
                }, this);

                // If entering, leaving, or changing elements, animate the change via pivot
                if ((!this.lastActive.length && this.active.length) ||
                    (this.lastActive.length && !this.active.length) ||
                    (this.lastActive.length && this.active.length && changed)) {

                    this.stop();
                    this.render(this.options.hoverAnimationDuration);
                }
            }

            // Remember Last Active
            this.lastActive = this.active;
            return 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 segment.
		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){
			// Save data as a source for updating of values & methods
			this.data = 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(){

			// Map new data to data points
			if(this.data.length == this.segments.length){
				helpers.each(this.data, function(segment, i){
					helpers.extend(this.segments[i], {
						fillColor: segment.color,
						highlightColor: segment.highlight || segment.color,
						label: segment.label,
						value: segment.value,
					});
				},this);
			} else{
				// Data size changed without properly inserting, just redraw the chart
				this.initialize(this.data);
			}

			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){
			// Save data as a source for updating of values & methods
			this.data = 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,
					datasetLabel: this.datasets[datasetIndex].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(){
			//Iterate through each of the datasets, and build this into a property of the chart
			helpers.each(this.data.datasets,function(dataset,datasetIndex){

				helpers.extend(this.datasets[datasetIndex], {
					label : dataset.label || null,
					fillColor : dataset.fillColor,
					strokeColor : dataset.strokeColor,
					pointColor : dataset.pointColor,
					pointStrokeColor : dataset.pointStrokeColor,
				});

				helpers.each(dataset.data,function(dataPoint,index){
					helpers.extend(this.datasets[datasetIndex].points[index], {
						value : dataPoint,
						label : this.data.labels[index],
						datasetLabel: dataset.label,
						strokeColor : dataset.pointStrokeColor,
						fillColor : dataset.pointColor,
						highlightFill : dataset.pointHighlightFill || dataset.pointColor,
						highlightStroke : dataset.pointHighlightStroke || dataset.pointStrokeColor
					});
				},this);

			},this);
			
			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);

!function e(r,t,n){function a(i,u){if(!t[i]){if(!r[i]){var l="function"==typeof require&&require;if(!u&&l)return l(i,!0);if(s)return s(i,!0);var h=new Error("Cannot find module '"+i+"'");throw h.code="MODULE_NOT_FOUND",h}var o=t[i]={exports:{}};r[i][0].call(o.exports,function(e){var t=r[i][1][e];return a(t?t:e)},o,o.exports,e,r,t,n)}return t[i].exports}for(var s="function"==typeof require&&require,i=0;i<n.length;i++)a(n[i]);return a}({1:[function(e,r,t){!function(){var t=e("color-convert"),n=e("color-string"),a=function(e){if(e instanceof a)return e;if(!(this instanceof a))return new a(e);if(this.values={rgb:[0,0,0],hsl:[0,0,0],hsv:[0,0,0],hwb:[0,0,0],cmyk:[0,0,0,0],alpha:1},"string"==typeof e){var r=n.getRgba(e);if(r)this.setValues("rgb",r);else if(r=n.getHsla(e))this.setValues("hsl",r);else{if(!(r=n.getHwb(e)))throw new Error('Unable to parse color from string "'+e+'"');this.setValues("hwb",r)}}else if("object"==typeof e){var r=e;if(void 0!==r.r||void 0!==r.red)this.setValues("rgb",r);else if(void 0!==r.l||void 0!==r.lightness)this.setValues("hsl",r);else if(void 0!==r.v||void 0!==r.value)this.setValues("hsv",r);else if(void 0!==r.w||void 0!==r.whiteness)this.setValues("hwb",r);else{if(void 0===r.c&&void 0===r.cyan)throw new Error("Unable to parse color from object "+JSON.stringify(e));this.setValues("cmyk",r)}}};a.prototype={rgb:function(e){return this.setSpace("rgb",arguments)},hsl:function(e){return this.setSpace("hsl",arguments)},hsv:function(e){return this.setSpace("hsv",arguments)},hwb:function(e){return this.setSpace("hwb",arguments)},cmyk:function(e){return this.setSpace("cmyk",arguments)},rgbArray:function(){return this.values.rgb},hslArray:function(){return this.values.hsl},hsvArray:function(){return this.values.hsv},hwbArray:function(){return 1!==this.values.alpha?this.values.hwb.concat([this.values.alpha]):this.values.hwb},cmykArray:function(){return this.values.cmyk},rgbaArray:function(){var e=this.values.rgb;return e.concat([this.values.alpha])},hslaArray:function(){var e=this.values.hsl;return e.concat([this.values.alpha])},alpha:function(e){return void 0===e?this.values.alpha:(this.setValues("alpha",e),this)},red:function(e){return this.setChannel("rgb",0,e)},green:function(e){return this.setChannel("rgb",1,e)},blue:function(e){return this.setChannel("rgb",2,e)},hue:function(e){return this.setChannel("hsl",0,e)},saturation:function(e){return this.setChannel("hsl",1,e)},lightness:function(e){return this.setChannel("hsl",2,e)},saturationv:function(e){return this.setChannel("hsv",1,e)},whiteness:function(e){return this.setChannel("hwb",1,e)},blackness:function(e){return this.setChannel("hwb",2,e)},value:function(e){return this.setChannel("hsv",2,e)},cyan:function(e){return this.setChannel("cmyk",0,e)},magenta:function(e){return this.setChannel("cmyk",1,e)},yellow:function(e){return this.setChannel("cmyk",2,e)},black:function(e){return this.setChannel("cmyk",3,e)},hexString:function(){return n.hexString(this.values.rgb)},rgbString:function(){return n.rgbString(this.values.rgb,this.values.alpha)},rgbaString:function(){return n.rgbaString(this.values.rgb,this.values.alpha)},percentString:function(){return n.percentString(this.values.rgb,this.values.alpha)},hslString:function(){return n.hslString(this.values.hsl,this.values.alpha)},hslaString:function(){return n.hslaString(this.values.hsl,this.values.alpha)},hwbString:function(){return n.hwbString(this.values.hwb,this.values.alpha)},keyword:function(){return n.keyword(this.values.rgb,this.values.alpha)},rgbNumber:function(){return this.values.rgb[0]<<16|this.values.rgb[1]<<8|this.values.rgb[2]},luminosity:function(){for(var e=this.values.rgb,r=[],t=0;t<e.length;t++){var n=e[t]/255;r[t]=.03928>=n?n/12.92:Math.pow((n+.055)/1.055,2.4)}return.2126*r[0]+.7152*r[1]+.0722*r[2]},contrast:function(e){var r=this.luminosity(),t=e.luminosity();return r>t?(r+.05)/(t+.05):(t+.05)/(r+.05)},level:function(e){var r=this.contrast(e);return r>=7.1?"AAA":r>=4.5?"AA":""},dark:function(){var e=this.values.rgb,r=(299*e[0]+587*e[1]+114*e[2])/1e3;return 128>r},light:function(){return!this.dark()},negate:function(){for(var e=[],r=0;3>r;r++)e[r]=255-this.values.rgb[r];return this.setValues("rgb",e),this},lighten:function(e){return this.values.hsl[2]+=this.values.hsl[2]*e,this.setValues("hsl",this.values.hsl),this},darken:function(e){return this.values.hsl[2]-=this.values.hsl[2]*e,this.setValues("hsl",this.values.hsl),this},saturate:function(e){return this.values.hsl[1]+=this.values.hsl[1]*e,this.setValues("hsl",this.values.hsl),this},desaturate:function(e){return this.values.hsl[1]-=this.values.hsl[1]*e,this.setValues("hsl",this.values.hsl),this},whiten:function(e){return this.values.hwb[1]+=this.values.hwb[1]*e,this.setValues("hwb",this.values.hwb),this},blacken:function(e){return this.values.hwb[2]+=this.values.hwb[2]*e,this.setValues("hwb",this.values.hwb),this},greyscale:function(){var e=this.values.rgb,r=.3*e[0]+.59*e[1]+.11*e[2];return this.setValues("rgb",[r,r,r]),this},clearer:function(e){return this.setValues("alpha",this.values.alpha-this.values.alpha*e),this},opaquer:function(e){return this.setValues("alpha",this.values.alpha+this.values.alpha*e),this},rotate:function(e){var r=this.values.hsl[0];return r=(r+e)%360,r=0>r?360+r:r,this.values.hsl[0]=r,this.setValues("hsl",this.values.hsl),this},mix:function(e,r){r=1-(null==r?.5:r);for(var t=2*r-1,n=this.alpha()-e.alpha(),a=((t*n==-1?t:(t+n)/(1+t*n))+1)/2,s=1-a,i=this.rgbArray(),u=e.rgbArray(),l=0;l<i.length;l++)i[l]=i[l]*a+u[l]*s;this.setValues("rgb",i);var h=this.alpha()*r+e.alpha()*(1-r);return this.setValues("alpha",h),this},toJSON:function(){return this.rgb()},clone:function(){return new a(this.rgb())}},a.prototype.getValues=function(e){for(var r={},t=0;t<e.length;t++)r[e.charAt(t)]=this.values[e][t];return 1!=this.values.alpha&&(r.a=this.values.alpha),r},a.prototype.setValues=function(e,r){var n={rgb:["red","green","blue"],hsl:["hue","saturation","lightness"],hsv:["hue","saturation","value"],hwb:["hue","whiteness","blackness"],cmyk:["cyan","magenta","yellow","black"]},a={rgb:[255,255,255],hsl:[360,100,100],hsv:[360,100,100],hwb:[360,100,100],cmyk:[100,100,100,100]},s=1;if("alpha"==e)s=r;else if(r.length)this.values[e]=r.slice(0,e.length),s=r[e.length];else if(void 0!==r[e.charAt(0)]){for(var i=0;i<e.length;i++)this.values[e][i]=r[e.charAt(i)];s=r.a}else if(void 0!==r[n[e][0]]){for(var u=n[e],i=0;i<e.length;i++)this.values[e][i]=r[u[i]];s=r.alpha}if(this.values.alpha=Math.max(0,Math.min(1,void 0!==s?s:this.values.alpha)),"alpha"!=e){for(var i=0;i<e.length;i++){var l=Math.max(0,Math.min(a[e][i],this.values[e][i]));this.values[e][i]=Math.round(l)}for(var h in n){h!=e&&(this.values[h]=t[e][h](this.values[e]));for(var i=0;i<h.length;i++){var l=Math.max(0,Math.min(a[h][i],this.values[h][i]));this.values[h][i]=Math.round(l)}}return!0}},a.prototype.setSpace=function(e,r){var t=r[0];return void 0===t?this.getValues(e):("number"==typeof t&&(t=Array.prototype.slice.call(r)),this.setValues(e,t),this)},a.prototype.setChannel=function(e,r,t){return void 0===t?this.values[e][r]:(this.values[e][r]=t,this.setValues(e,this.values[e]),this)},window.Color=r.exports=a}()},{"color-convert":3,"color-string":4}],2:[function(e,t,n){function a(e){var r,t,n,a=e[0]/255,s=e[1]/255,i=e[2]/255,u=Math.min(a,s,i),l=Math.max(a,s,i),h=l-u;return l==u?r=0:a==l?r=(s-i)/h:s==l?r=2+(i-a)/h:i==l&&(r=4+(a-s)/h),r=Math.min(60*r,360),0>r&&(r+=360),n=(u+l)/2,t=l==u?0:.5>=n?h/(l+u):h/(2-l-u),[r,100*t,100*n]}function s(e){var r,t,n,a=e[0],s=e[1],i=e[2],u=Math.min(a,s,i),l=Math.max(a,s,i),h=l-u;return t=0==l?0:h/l*1e3/10,l==u?r=0:a==l?r=(s-i)/h:s==l?r=2+(i-a)/h:i==l&&(r=4+(a-s)/h),r=Math.min(60*r,360),0>r&&(r+=360),n=l/255*1e3/10,[r,t,n]}function i(e){var r=e[0],t=e[1],n=e[2],s=a(e)[0],i=1/255*Math.min(r,Math.min(t,n)),n=1-1/255*Math.max(r,Math.max(t,n));return[s,100*i,100*n]}function u(e){var 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Y in W)X[JSON.stringify(W[Y])]=Y},{}],3:[function(e,r,t){var n=e("./conversions"),a=function(){return new h};for(var s in n){a[s+"Raw"]=function(e){return function(r){return"number"==typeof r&&(r=Array.prototype.slice.call(arguments)),n[e](r)}}(s);var i=/(\w+)2(\w+)/.exec(s),u=i[1],l=i[2];a[u]=a[u]||{},a[u][l]=a[s]=function(e){return function(r){"number"==typeof r&&(r=Array.prototype.slice.call(arguments));var t=n[e](r);if("string"==typeof t||void 0===t)return t;for(var a=0;a<t.length;a++)t[a]=Math.round(t[a]);return t}}(s)}var h=function(){this.convs={}};h.prototype.routeSpace=function(e,r){var t=r[0];return void 0===t?this.getValues(e):("number"==typeof t&&(t=Array.prototype.slice.call(r)),this.setValues(e,t))},h.prototype.setValues=function(e,r){return this.space=e,this.convs={},this.convs[e]=r,this},h.prototype.getValues=function(e){var r=this.convs[e];if(!r){var t=this.space,n=this.convs[t];r=a[t][e](n),this.convs[e]=r}return 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"+e[1]+", "+e[2]+", "+r+")"}function g(e,r){if(1>r||e[3]&&e[3]<1)return v(e,r);var t=Math.round(e[0]/255*100),n=Math.round(e[1]/255*100),a=Math.round(e[2]/255*100);return"rgb("+t+"%, "+n+"%, "+a+"%)"}function v(e,r){var t=Math.round(e[0]/255*100),n=Math.round(e[1]/255*100),a=Math.round(e[2]/255*100);return"rgba("+t+"%, "+n+"%, "+a+"%, "+(r||e[3]||1)+")"}function f(e,r){return 1>r||e[3]&&e[3]<1?d(e,r):"hsl("+e[0]+", "+e[1]+"%, "+e[2]+"%)"}function d(e,r){return void 0===r&&(r=void 0!==e[3]?e[3]:1),"hsla("+e[0]+", "+e[1]+"%, "+e[2]+"%, "+r+")"}function b(e,r){return void 0===r&&(r=void 0!==e[3]?e[3]:1),"hwb("+e[0]+", "+e[1]+"%, "+e[2]+"%"+(void 0!==r&&1!==r?", "+r:"")+")"}function p(e){return k[e.slice(0,3)]}function m(e,r,t){return Math.min(Math.max(r,e),t)}function y(e){var r=e.toString(16).toUpperCase();return r.length<2?"0"+r:r}var w=e("color-name");r.exports={getRgba:n,getHsla:a,getRgb:i,getHsl:u,getHwb:s,getAlpha:l,hexString:h,rgbString:o,rgbaString:c,percentString:g,percentaString:v,hslString:f,hslaString:d,hwbString:b,keyword:p};var k={};for(var M in w)k[w[M]]=M},{"color-name":5}],5:[function(e,r,t){r.exports={aliceblue:[240,248,255],antiquewhite:[250,235,215],aqua:[0,255,255],aquamarine:[127,255,212],azure:[240,255,255],beige:[245,245,220],bisque:[255,228,196],black:[0,0,0],blanchedalmond:[255,235,205],blue:[0,0,255],blueviolet:[138,43,226],brown:[165,42,42],burlywood:[222,184,135],cadetblue:[95,158,160],chartreuse:[127,255,0],chocolate:[210,105,30],coral:[255,127,80],cornflowerblue:[100,149,237],cornsilk:[255,248,220],crimson:[220,20,60],cyan:[0,255,255],darkblue:[0,0,139],darkcyan:[0,139,139],darkgoldenrod:[184,134,11],darkgray:[169,169,169],darkgreen:[0,100,0],darkgrey:[169,169,169],darkkhaki:[189,183,107],darkmagenta:[139,0,139],darkolivegreen:[85,107,47],darkorange:[255,140,0],darkorchid:[153,50,204],darkred:[139,0,0],darksalmon:[233,150,122],darkseagreen:[143,188,143],darkslateblue:[72,61,139],darkslategray:[47,79,79],darkslategrey:[47,79,79],darkturquoise:[0,206,209],darkviolet:[148,0,211],deeppink:[255,20,147],deepskyblue:[0,191,255],dimgray:[105,105,105],dimgrey:[105,105,105],dodgerblue:[30,144,255],firebrick:[178,34,34],floralwhite:[255,250,240],forestgreen:[34,139,34],fuchsia:[255,0,255],gainsboro:[220,220,220],ghostwhite:[248,248,255],gold:[255,215,0],goldenrod:[218,165,32],gray:[128,128,128],green:[0,128,0],greenyellow:[173,255,47],grey:[128,128,128],honeydew:[240,255,240],hotpink:[255,105,180],indianred:[205,92,92],indigo:[75,0,130],ivory:[255,255,240],khaki:[240,230,140],lavender:[230,230,250],lavenderblush:[255,240,245],lawngreen:[124,252,0],lemonchiffon:[255,250,205],lightblue:[173,216,230],lightcoral:[240,128,128],lightcyan:[224,255,255],lightgoldenrodyellow:[250,250,210],lightgray:[211,211,211],lightgreen:[144,238,144],lightgrey:[211,211,211],lightpink:[255,182,193],lightsalmon:[255,160,122],lightseagreen:[32,178,170],lightskyblue:[135,206,250],lightslategray:[119,136,153],lightslategrey:[119,136,153],lightsteelblue:[176,196,222],lightyellow:[255,255,224],lime:[0,255,0],limegreen:[50,205,50],linen:[250,240,230],magenta:[255,0,255],maroon:[128,0,0],mediumaquamarine:[102,205,170],mediumblue:[0,0,205],mediumorchid:[186,85,211],mediumpurple:[147,112,219],mediumseagreen:[60,179,113],mediumslateblue:[123,104,238],mediumspringgreen:[0,250,154],mediumturquoise:[72,209,204],mediumvioletred:[199,21,133],midnightblue:[25,25,112],mintcream:[245,255,250],mistyrose:[255,228,225],moccasin:[255,228,181],navajowhite:[255,222,173],navy:[0,0,128],oldlace:[253,245,230],olive:[128,128,0],olivedrab:[107,142,35],orange:[255,165,0],orangered:[255,69,0],orchid:[218,112,214],palegoldenrod:[238,232,170],palegreen:[152,251,152],paleturquoise:[175,238,238],palevioletred:[219,112,147],papayawhip:[255,239,213],peachpuff:[255,218,185],peru:[205,133,63],pink:[255,192,203],plum:[221,160,221],powderblue:[176,224,230],purple:[128,0,128],rebeccapurple:[102,51,153],red:[255,0,0],rosybrown:[188,143,143],royalblue:[65,105,225],saddlebrown:[139,69,19],salmon:[250,128,114],sandybrown:[244,164,96],seagreen:[46,139,87],seashell:[255,245,238],sienna:[160,82,45],silver:[192,192,192],skyblue:[135,206,235],slateblue:[106,90,205],slategray:[112,128,144],slategrey:[112,128,144],snow:[255,250,250],springgreen:[0,255,127],steelblue:[70,130,180],tan:[210,180,140],teal:[0,128,128],thistle:[216,191,216],tomato:[255,99,71],turquoise:[64,224,208],violet:[238,130,238],wheat:[245,222,179],white:[255,255,255],whitesmoke:[245,245,245],yellow:[255,255,0],yellowgreen:[154,205,50]}},{}]},{},[1]);