Getting Started.... again.

V2.0 dev refactor

.gitignore

@@ -1,2 +1,11 @@
 
 .DS_Store
+
+node_modules/*
+custom/*
+
+docs/index.md
+
+bower_components/
+
+coverage/*

.travis.yml

@@ -0,0 +1,13 @@
+language: node_js
+node_js:
+  - "0.11"
+  - "0.10"
+
+before_script:
+  - npm install
+
+script:
+  - gulp test
+
+notifications:
+  slack: chartjs:pcfCZR6ugg5TEcaLtmIfQYuA

CONTRIBUTING.md

@@ -0,0 +1,55 @@
+Contributing to Chart.js
+========================
+
+Contributions to Chart.js are welcome and encouraged, but please have a look through the guidelines in this document before raising an issue, or writing code for the project.
+
+
+Using issues
+------------
+
+The [issue tracker](https://github.com/nnnick/Chart.js/issues) is the preferred channel for reporting bugs, requesting new features and submitting pull requests.
+
+If you're suggesting a new chart type, please take a look at [writing new chart types](https://github.com/nnnick/Chart.js/blob/master/docs/06-Advanced.md#writing-new-chart-types) in the documentation, and some of the [community extensions](https://github.com/nnnick/Chart.js/blob/master/docs/06-Advanced.md#community-extensions) that have been created already.
+
+To keep the library lightweight for everyone, it's unlikely we'll add many more chart types to the core of Chart.js, but issues are a good medium to design and spec out how new chart types could work and look.
+
+Please do not use issues for support requests. For help using Chart.js, please take a look at the [`chartjs`](http://stackoverflow.com/questions/tagged/chartjs) tag on Stack Overflow.
+
+
+Reporting bugs
+--------------
+
+Well structured, detailed bug reports are hugely valuable for the project.
+
+Guidlines for reporting bugs:
+
+ - Check the issue search to see if it has already been reported
+ - Isolate the problem to a simple test case
+ - Provide a demonstration of the problem on [JS Bin](http://jsbin.com) or similar
+
+Please provide any additional details associated with the bug, if it's browser or screen density specific, or only happens with a certain configuration or data.
+
+
+Pull requests
+-------------
+
+Clear, concise pull requests are excellent at continuing the project's community driven growth. But please review [these guidelines](https://github.com/blog/1943-how-to-write-the-perfect-pull-request) and the guidelines below before starting work on the project.
+
+Guidlines:
+
+ - Please create an issue first:
+   - For bugs, we can discuss the fixing approach
+   - For enhancements, we can discuss if it is within the project scope and avoid duplicate effort
+ - Please make changes to the files in [`/src`](https://github.com/nnnick/Chart.js/tree/master/src), not `Chart.js` or `Chart.min.js` in the repo root directory, this avoids merge conflicts
+ - Tabs for indentation, not spaces please
+ - If adding new functionality, please also update the relevant `.md` file in [`/docs`](https://github.com/nnnick/Chart.js/tree/master/docs)
+ - Please make your commits in logical sections with clear commit messages
+
+Joining the Project
+-------------
+ - Active committers and contributors are invited to introduce yourself and request commit access to this project.  Please send an email to hello@nickdownie.com or file an issue. 
+
+License
+-------
+
+By contributing your code, you agree to license your contribution under the [MIT license](https://github.com/nnnick/Chart.js/blob/master/LICENSE.md).

LICENSE.md

@@ -1,4 +1,4 @@
-Copyright (c) 2013 Nick Downie
+Copyright (c) 2013-2015 Nick Downie
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 

README.md

@@ -0,0 +1,21 @@
+# Chart.js 
+
+[![Build Status](https://travis-ci.org/nnnick/Chart.js.svg?branch=v2.0-dev)](https://travis-ci.org/nnnick/Chart.js) [![Code Climate](https://codeclimate.com/github/nnnick/Chart.js/badges/gpa.svg)](https://codeclimate.com/github/nnnick/Chart.js)
+
+# Version 2.0 is in early alpha. We are changing the internal data model to reduce copying, increase performance and expose a more flexible API.
+
+*Simple HTML5 Charts using the canvas element* [chartjs.org](http://www.chartjs.org)
+
+## Documentation
+
+You can find documentation at [chartjs.org/docs](http://www.chartjs.org/docs/). The markdown files that build the site are available under `/docs`. Please note - in some of the json examples of configuration you might notice some liquid tags - this is just for the generating the site html, please disregard.
+
+## Bugs, issues and contributing
+
+Before submitting an issue or a pull request to the project, please take a moment to look over the [contributing guidelines](https://github.com/nnnick/Chart.js/blob/master/CONTRIBUTING.md) first.
+
+For support using Chart.js, please post questions with the [`chartjs` tag on Stack Overflow](http://stackoverflow.com/questions/tagged/chartjs).
+
+## License
+
+Chart.js is available under the [MIT license](http://opensource.org/licenses/MIT).

bower.json

@@ -0,0 +1,13 @@
+{
+    "name": "Chart.js",
+    "version": "2.0.0-alpha",
+    "description": "Simple HTML5 Charts using the canvas element",
+    "homepage": "https://github.com/nnnick/Chart.js",
+    "author": "nnnick",
+    "main": [
+        "Chart.js"
+    ],
+    "devDependencies": {
+        "jquery": "~2.1.4"
+    }
+}

component.json

@@ -1,11 +0,0 @@
-{
-  "name": "Chart.js",
-  "version": "0.2.0",
-  "description": "Simple HTML5 Charts using the canvas element",
-  "keywords": ["charts"],
-  "homepage": "https://github.com/nnnick/Chart.js",
-  "author": "nnnick",
-  "main": ["Chart.min.js"],
-  "dependencies": {
-  }
-}

docs/00-Getting-Started.md

@@ -0,0 +1,191 @@
+---
+title: Getting started
+anchor: getting-started
+---
+
+###Include Chart.js
+
+First we need to include the Chart.js library on the page. The library occupies a global variable of `Chart`.
+
+```html
+<script src="Chart.js"></script>
+```
+
+Alternatively, if you're using an AMD loader for JavaScript modules, that is also supported in the Chart.js core. Please note: the library will still occupy a global variable of `Chart`, even if it detects `define` and `define.amd`. If this is a problem, you can call `noConflict` to restore the global Chart variable to it's previous owner.
+
+```javascript
+// Using requirejs
+require(['path/to/Chartjs'], function(Chart){
+	// Use Chart.js as normal here.
+
+	// Chart.noConflict restores the Chart global variable to it's previous owner
+	// The function returns what was previously Chart, allowing you to reassign.
+	var Chartjs = Chart.noConflict();
+
+});
+```
+
+You can also grab Chart.js using bower, npm, or CDN:
+
+```bash
+bower install Chart.js --save
+```
+```bash
+npm install Chart.js --save
+```
+
+https://cdnjs.com/libraries/chart.js
+
+###Creating a chart
+
+To create a chart, we need to instantiate the `Chart` class. To do this, we need to pass in the node, jQuery instance, or 2d context of the canvas of where we want to draw the chart. Here's an example.
+
+```html
+<canvas id="myChart" width="400" height="400"></canvas>
+```
+
+```javascript
+// Any of the following formats may be used
+var ctx = document.getElementById("myChart");
+var ctx = document.getElementById("myChart").getContext("2d");
+var ctx = $("myChart");
+```
+
+Once you have the element or context, you're ready to instantiate a pre-defined chart-type or create your own!
+
+The following example instantiates a the pre-defined Polar Area chart type with a config object of data and options.
+```javascript
+var myNewChart = Chart.PolarArea(ctx, {
+    data: data,
+    options: options
+});
+```
+
+To create a scatter chart, which is a special configuration of a line chart, we use the following.
+```javascript
+var myScatterChart = Chart.Scatter(ctx, {
+    data: data,
+    options: options
+});
+```
+
+Alternatively, we can use the more advanced API to create simple or advanced chart types. In the example below, we are creating a line chart.
+```javascript
+var myChart = new Chart(ctx, {
+    type: 'line', // built in types are 'line', 'bar', 'radar', 'polarArea', 'doughnut', 'scatter'
+    data: data,
+    options: options
+});
+```
+
+###Global chart configuration
+
+This concept was introduced in Chart.js 1.0 to keep configuration DRY, and allow for changing options globally across chart types, avoiding the need to specify options for each instance, or the default for a particular chart type.
+
+Chart.js merges configurations and options in a few places with the global defaults using chart type defaults and scales defaults. This way you can be as specific as you want in your individual chart configs, or change the defaults for Chart.js as a whole.
+
+```javascript
+Chart.defaults.global = {
+    responsive: true,
+    responsiveAnimationDuration: 0,
+    maintainAspectRatio: true,
+    events: ["mousemove", "mouseout", "click", "touchstart", "touchmove", "touchend"],
+    hover: {
+        onHover: null,
+        mode: 'single',
+        animationDuration: 400,
+    },
+    onClick: null,
+    defaultColor: 'rgba(0,0,0,0.1)',
+
+    // Element defaults defined in element extensions
+    elements: {},
+
+    // Legend template string
+    legendTemplate: "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i = 0; i < data.datasets.length; i++){%><li><span style=\"background-color:<%=data.datasets[i].backgroundColor%>\"><%if(data.datasets[i].label){%><%=data.datasets[i].label%><%}%></span></li><%}%></ul>",
+
+    animation: {
+        duration: 1000,
+        easing: "easeOutQuart",
+        onProgress: function() {},
+        onComplete: function() {},
+    },
+
+    tooltips:{
+        enabled: true,
+        custom: null,
+        backgroundColor: "rgba(0,0,0,0.8)",
+        fontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif",
+        fontSize: 10,
+        fontStyle: "normal",
+        fontColor: "#fff",
+        titleFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif",
+        titleFontSize: 12,
+        titleFontStyle: "bold",
+        titleFontColor: "#fff",
+        yPadding: 6,
+        xPadding: 6,
+        caretSize: 8,
+        cornerRadius: 6,
+        xOffset: 10,
+        template: [
+            '<% if(label){ %>',
+            '<%=label %>: ',
+            '<% } %>',
+            '<%=value %>',
+        ].join(''),
+        multiTemplate: [
+            '<%if (datasetLabel){ %>',
+            '<%=datasetLabel %>: ',
+            '<% } %>',
+            '<%=value %>'
+        ].join(''),
+        multiKeyBackground: '#fff',
+    },
+
+    elements: {
+        arc: {   
+            backgroundColor: Chart.defaults.global.defaultColor,
+            borderColor: "#fff",
+            borderWidth: 2
+        },
+        line: {
+            tension: 0.4,
+            backgroundColor: Chart.defaults.global.defaultColor,
+            borderWidth: 3,
+            borderColor: Chart.defaults.global.defaultColor,
+            borderCapStyle: 'butt',
+            borderDash: [],
+            borderDashOffset: 0.0,
+            borderJoinStyle: 'miter',
+            fill: true, // do we fill in the area between the line and its base axis
+            skipNull: true,
+            drawNull: false,
+        },
+        point: {
+            radius: 3,
+            backgroundColor: Chart.defaults.global.defaultColor,
+            borderWidth: 1,
+            borderColor: Chart.defaults.global.defaultColor,
+            // Hover
+            hitRadius: 1,
+            hoverRadius: 4,
+            hoverBorderWidth: 1,
+        },
+        rectangle: {
+            backgroundColor: Chart.defaults.global.defaultColor,
+            borderWidth: 0,
+            borderColor: Chart.defaults.global.defaultColor,
+        }
+
+    }
+}
+```
+
+If for example, you wanted all charts created to be responsive, and resize when the browser window does, the following setting can be changed:
+
+```javascript
+Chart.defaults.global.responsive = true;
+```
+
+Now, every time we create a chart, `options.responsive` will be `true`.

docs/01-Scales

@@ -0,0 +1,227 @@
+---
+title: Getting started
+anchor: getting-started
+---
+
+###Scales
+
+Scales in v2.0 of Chart.js are significantly more powerful, but also different than those of v1.0.
+- Multiple x & y axes are now supported.
+- A built-in label auto-skip feature now detects would-be overlapping ticks and labels and removes every nth label to keep things displaying normally. 
+- Scale labels
+
+Every scale extends a core scale class with the following options:
+
+```javascript
+Chart.defaults.scale = {
+	display: true,
+
+	// grid line settings
+	gridLines: {
+		show: true,
+		color: "rgba(0, 0, 0, 0.1)",
+		lineWidth: 1,
+		drawOnChartArea: true,
+		drawTicks: true,
+		zeroLineWidth: 1,
+		zeroLineColor: "rgba(0,0,0,0.25)",
+		offsetGridLines: false,
+	},
+
+	// scale label
+	scaleLabel: {
+		fontColor: '#666',
+		fontFamily: 'Helvetica Neue',
+		fontSize: 12,
+		fontStyle: 'normal',
+
+		// actual label
+		labelString: '',
+
+		// display property
+		show: false,
+	},
+
+	// label settings
+	ticks: {
+		beginAtZero: false,
+		fontSize: 12,
+		fontStyle: "normal",
+		fontColor: "#666",
+		fontFamily: "Helvetica Neue",
+		maxRotation: 90,
+		minRotation: 20,
+		mirror: false,
+		padding: 10,
+		reverse: false,
+		show: true,
+		template: "<%=value%>",
+		userCallback: false,
+	},
+};
+```
+
+The `userCallback` method may be used for advanced tick customization. The following callback would display every label in scientific notation
+```javascript
+{
+    scales: {
+        xAxes: [{
+            ticks: {
+                // Return an empty string to draw the tick line but hide the tick label
+                // Return `null` or `undefined` to hide the tick line entirely
+               	userCallback: function(value, index, values) {
+    				return value.toExponential();
+    			}
+            }
+        }]
+    }
+}
+```
+
+#### Category Scale
+The category scale will be familiar to those who have used v1.0. Labels are drawn in from the labels array included in the chart data.
+
+The category scale extends the core scale class with the following tick template:
+
+```javascript
+{
+	position: "bottom",
+}
+```
+
+#### Linear Scale
+The linear scale can be used to display numerical data. It can be placed on either the x or y axis. The scatter chart type automatically configures a line chart to use one of these scales for the x axis.
+
+The linear scale extends the core scale class with the following tick template:
+
+```javascript
+{
+	position: "left",
+}
+```
+
+#### Logarithmic Scale
+The logarithmic scale is used to display logarithmic data of course. It can be placed on either the x or y axis.
+
+The log scale extends the core scale class with the following tick template:
+
+```javascript
+{
+	position: "left",
+	ticks: {
+		template: "<%var remain = value / (Math.pow(10, Math.floor(Chart.helpers.log10(value))));if (remain === 1 || remain === 2 || remain === 5) {%><%=value.toExponential()%><%} else {%><%= null %><%}%>",
+	}
+}
+```
+
+#### Time Scale
+The time scale is used to display times and dates. It can be placed on the x axis. When building its ticks, it will automatically calculate the most comfortable unit base on the size of the scale.
+
+The time scale extends the core scale class with the following tick template:
+
+```javascript
+{
+	position: "bottom",
+	time: {
+		// string/callback - By default, date objects are expected. You may use a pattern string from http://momentjs.com/docs/#/parsing/string-format/ to parse a time string format, or use a callback function that is passed the label, and must return a moment() instance.
+		format: false,
+		// string - By default, unit will automatically be detected.  Override with 'week', 'month', 'year', etc. (see supported time measurements)
+		unit: false, 
+		// string - By default, no rounding is applied.  To round, set to a supported time unit eg. 'week', 'month', 'year', etc.
+		round: false, 
+		// string - By default, is set to the detected (or manually overridden) time unit's `display` property (see supported time measurements).  To override, use a pattern string from http://momentjs.com/docs/#/displaying/format/
+		displayFormat: false
+	},
+}
+```
+
+The following time measurements are supported:
+
+```javascript
+{
+	'millisecond': {
+		display: 'SSS [ms]', // 002 ms
+		maxStep: 1000,
+	},
+	'second': {
+		display: 'h:mm:ss a', // 11:20:01 AM
+		maxStep: 60,
+	},
+	'minute': {
+		display: 'h:mm:ss a', // 11:20:01 AM
+		maxStep: 60,
+	},
+	'hour': {
+		display: 'MMM D, hA', // Sept 4, 5PM
+		maxStep: 24,
+	},
+	'day': {
+		display: 'll', // Sep 4 2015
+		maxStep: 7,
+	},
+	'week': {
+		display: 'll', // Week 46, or maybe "[W]WW - YYYY" ?
+		maxStep: 4.3333,
+	},
+	'month': {
+		display: 'MMM YYYY', // Sept 2015
+		maxStep: 12,
+	},
+	'quarter': {
+		display: '[Q]Q - YYYY', // Q3
+		maxStep: 4,
+	},
+	'year': {
+		display: 'YYYY', // 2015
+		maxStep: false,
+	},
+}
+```
+
+#### Radial Linear Scale
+The radial linear scale is used specifically for the radar chart type.
+
+The radial linear scale extends the core scale class with the following tick template:
+
+```javascript
+{
+	animate: true,
+	lineArc: false,
+	position: "chartArea",
+
+	angleLines: {
+		show: true,
+		color: "rgba(0, 0, 0, 0.1)",
+		lineWidth: 1
+	},
+
+	// label settings
+	ticks: {
+		//Boolean - Show a backdrop to the scale label
+		showLabelBackdrop: true,
+
+		//String - The colour of the label backdrop
+		backdropColor: "rgba(255,255,255,0.75)",
+
+		//Number - The backdrop padding above & below the label in pixels
+		backdropPaddingY: 2,
+
+		//Number - The backdrop padding to the side of the label in pixels
+		backdropPaddingX: 2,
+	},
+
+	pointLabels: {
+		//String - Point label font declaration
+		fontFamily: "'Arial'",
+
+		//String - Point label font weight
+		fontStyle: "normal",
+
+		//Number - Point label font size in pixels
+		fontSize: 10,
+
+		//String - Point label font colour
+		fontColor: "#666",
+	},
+}
+```

docs/02-Line-Chart.md

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+---
+title: Line Chart
+anchor: line-chart
+---
+###Introduction
+A line chart is a way of plotting data points on a line.
+
+Often, it is used to show trend data, and the comparison of two data sets.
+
+<div class="canvas-holder">
+	<canvas width="250" height="125"></canvas>
+</div>
+
+###Example usage
+```javascript
+var myLineChart = new Chart(ctx, {
+	type: 'line',
+	data: data, 
+	options: options
+});
+```
+
+Alternatively a line chart can be created using syntax similar to the v1.0 syntax
+```javascript
+var myLineChart = Chart.Line(ctx, {
+	data: data, 
+	options: options
+});
+```
+###Data structure
+
+```javascript
+var data = {
+	labels: ["January", "February", "March", "April", "May", "June", "July"],
+	datasets: [
+		{
+			label: "My First dataset",
+
+			// Boolean - if true fill the area under the line
+			fill: false,
+
+			// String - the color to fill the area under the line with if fill is true
+			backgroundColor: "rgba(220,220,220,0.2)",
+
+			// The properties below allow an array to be specified to change the value of the item at the given index
+
+			// String or array - Line color
+			borderColor: "rgba(220,220,220,1)",
+
+			// String - cap style of the line. See https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/lineCap
+            borderCapStyle: 'butt',
+
+            // Array - Length and spacing of dashes. See https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/setLineDash
+            borderDash: [],
+
+            // Number - Offset for line dashes. See https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/lineDashOffset
+            borderDashOffset: 0.0,
+
+            // String - line join style. See https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/lineJoin
+            borderJoinStyle: 'miter',
+
+			// String or array - Point stroke color
+			pointBorderColor: "rgba(220,220,220,1)",
+
+			// String or array - Point fill color
+			pointBackgroundColor: "#fff",
+
+			// Number or array - Stroke width of point border
+			pointBorderWidth: 1,
+
+			// Number or array - Radius of point when hovered
+			pointHoverRadius: 5,
+
+			// String or array - point background color when hovered
+			pointHoverBackgroundColor: "rgba(220,220,220,1)",
+
+			// Point border color when hovered
+			pointHoverBorderColor: "rgba(220,220,220,1)",
+
+			// Number or array - border width of point when hovered
+			pointHoverBorderWidth: 2,
+
+			// The actual data
+			data: [65, 59, 80, 81, 56, 55, 40],
+
+			// String - If specified, binds the dataset to a certain y-axis. If not specified, the first y-axis is used.
+			yAxisID: "y-axis-1",
+		},
+		{
+			label: "My Second dataset",
+			fill: false,
+			backgroundColor: "rgba(220,220,220,0.2)",
+			borderColor: "rgba(220,220,220,1)",
+			pointBorderColor: "rgba(220,220,220,1)",
+			pointBackgroundColor: "#fff",
+			pointBorderWidth: 1,
+			pointHoverRadius: 5,
+			pointHoverBackgroundColor: "rgba(220,220,220,1)",
+			pointHoverBorderColor: "rgba(220,220,220,1)",
+			pointHoverBorderWidth: 2,
+			data: [28, 48, 40, 19, 86, 27, 90]
+		}
+	]
+};
+```
+
+The line chart requires an array of labels for each of the data points. This is shown on the X axis.
+The data for line charts is broken up into an array of datasets. Each dataset has a colour for the fill, a colour for the line and colours for the points and strokes of the points. These colours are strings just like CSS. You can use RGBA, RGB, HEX or HSL notation.
+
+The label key on each dataset is optional, and can be used when generating a scale for the chart.
+
+### Chart options
+
+These are the customisation options specific to Line charts. These options are merged with the [global chart configuration options](#getting-started-global-chart-configuration), and form the options of the chart.
+
+```javascript
+{
+	// Boolean - if true, line stack on top of each other along the y axis
+	stacked: false,
+
+	hover: {
+		// String - We use a label hover mode since the x axis displays data by the index in the dataset
+		mode: "label"
+	},
+
+	scales: {
+		// Defines all of the x axes used in the chart. See the [scale documentation](#getting-started-scales) for details on the available options
+		xAxes: [{
+			// String - type of scale. Built in types are 'category' and 'linear'
+			type: 'category', 
+
+			// String - id of the axis so that data can bind to it
+    		id: "x-axis-1", // need an ID so datasets can reference the scale
+		}],
+
+		// Defines all of the y axes used in the chart.
+		// By default, the line chart uses a linear scale along the y axis
+		yAxes: [{
+			type: 'linear',
+
+			// String - ID of the axis for data binding
+    		id: "y-axis-1",
+		}],
+	}
+};
+```
+
+You can override these for your `Chart` instance by passing a member `options` into the `Line` method.
+
+For example, we could have a line chart display without an x axis by doing the following. The config merge is smart enough to handle arrays so that you do not need to specify all axis settings to change one thing.
+
+```javascript
+new Chart(ctx, {
+	type: 'line',
+	data: data, 
+	options: {
+		xAxes: [{
+			show: false
+		}]
+	}
+});
+// This will create a chart with all of the default options, merged from the global config,
+// and the Line chart defaults, but this particular instance will have `bezierCurve` set to false.
+```
+
+We can also change these defaults values for each Line type that is created, this object is available at `Chart.defaults.Line`.
+
+
+### Prototype methods
+
+#### .getElementsAtEvent( event )
+
+Calling `getElementsAtEvent(event)` on your Chart instance passing an argument of an event, or jQuery event, will return the point elements that are at that the same position of that event.
+
+```javascript
+canvas.onclick = function(evt){
+	var activePoints = myLineChart.getElementsAtEvent(evt);
+	// => activePoints is an array of points on the canvas that are at the same position as the click event.
+};
+```
+
+This functionality may be useful for implementing DOM based tooltips, or triggering custom behaviour in your application.
+
+#### .update( )
+
+Calling `update()` on your Chart instance will re-render the chart with any updated values, allowing you to edit the value of multiple existing points, then render those in one animated render loop.
+
+```javascript
+myLineChart.datasets[0].points[2].value = 50;
+// Would update the first dataset's value of 'March' to be 50
+myLineChart.update();
+// Calling update now animates the position of March from 90 to 50.
+```
+
+#### .addData( valuesArray, label )
+
+Calling `addData(valuesArray, label)` on your Chart instance passing an array of values for each dataset, along with a label for those points.
+
+```javascript
+// The values array passed into addData should be one for each dataset in the chart
+myLineChart.addData([40, 60], "August");
+// This new data will now animate at the end of the chart.
+```
+
+#### .removeData( )
+
+Calling `removeData()` on your Chart instance will remove the first value for all datasets on the chart.
+
+```javascript
+myLineChart.removeData();
+// The chart will remove the first point and animate other points into place
+```

docs/03-Bar-Chart.md

@@ -0,0 +1,283 @@
+---
+title: Bar Chart
+anchor: bar-chart
+---
+
+### Introduction
+A bar chart is a way of showing data as bars.
+
+It is sometimes used to show trend data, and the comparison of multiple data sets side by side.
+
+<div class="canvas-holder">
+	<canvas width="250" height="125"></canvas>
+</div>
+
+### Example usage
+```javascript
+var myBarChart = new Chart(ctx).Bar({
+	data: data, 
+	options: options
+});
+```
+
+### Data structure
+
+```javascript
+var data = {
+	labels: ["January", "February", "March", "April", "May", "June", "July"],
+	datasets: [
+		{
+			label: "My First dataset",
+
+			// The properties below allow an array to be specified to change the value of the item at the given index
+			// String  or array - the bar color
+			backgroundColor: "rgba(220,220,220,0.2)",
+
+			// String or array - bar stroke color
+			borderColor: "rgba(220,220,220,1)",
+
+			// Number or array - bar border width
+			borderWidth: 1,
+
+			// String or array - fill color when hovered
+			hoverBackgroundColor: "rgba(220,220,220,0.2)",
+
+			// String or array - border color when hovered
+			hoverBorderColor: "rgba(220,220,220,1)",
+
+			// The actual data
+			data: [65, 59, 80, 81, 56, 55, 40],
+
+			// String - If specified, binds the dataset to a certain y-axis. If not specified, the first y-axis is used.
+			yAxisID: "y-axis-1",
+		},
+		{
+			label: "My Second dataset",
+			backgroundColor: "rgba(220,220,220,0.2)",
+			borderColor: "rgba(220,220,220,1)",
+			borderWidth: 1,
+			hoverBackgroundColor: "rgba(220,220,220,0.2)",
+			hoverBorderColor: "rgba(220,220,220,1)",
+			data: [28, 48, 40, 19, 86, 27, 90]
+		}
+	]
+};
+```
+The bar chart has the a very similar data structure to the line chart, and has an array of datasets, each with colours and an array of data. Again, colours are in CSS format.
+We have an array of labels too for display. In the example, we are showing the same data as the previous line chart example.
+
+The label key on each dataset is optional, and can be used when generating a scale for the chart.
+
+### Chart Options
+
+These are the customisation options specific to Bar charts. These options are merged with the [global chart configuration options](#getting-started-global-chart-configuration), and form the options of the chart.
+
+```javascript
+{
+	// Boolean - if true, bars stack on top of each other
+	stacked: false,
+
+	hover: {
+		// String - We use a label hover mode since the x axis displays data by the index in the dataset
+		mode: "label"
+	},
+
+	scales: {
+		// The bar chart officially supports only 1 x-axis but uses an array to keep the API consistent. Use a scatter chart if you need multiple x axes. 
+		xAxes: [{
+			// String - type of axis to use. Should not be changed from 'dataset'.
+			scaleType: "dataset", // scatter should not use a dataset axis
+
+			// Boolean - if true, show the scale
+			display: true,
+
+			// String - position of the scale. possible options are "top" and "bottom" for dataset scales
+			position: "bottom",
+
+			// String - id of the axis so that data can bind to it
+			id: "x-axis-1", // need an ID so datasets can reference the scale
+
+			// grid line settings
+			gridLines: {
+				// Boolean - if true, show the grid lines
+				show: true,
+
+				// String - color of the grid lines
+				color: "rgba(0, 0, 0, 0.05)",
+
+				// Number - width of the grid lines
+				lineWidth: 1,
+
+				// Boolean - if true draw lines on the chart area
+				drawOnChartArea: true,
+
+				// Boolean - if true draw ticks in the axis area
+				drawTicks: true,
+
+				// Number - width of the grid line for the first index (index 0)
+				zeroLineWidth: 1,
+
+				// String - color of the grid line for the first index
+				zeroLineColor: "rgba(0,0,0,0.25)",
+
+				// Boolean - if true, offset labels from grid lines
+				offsetGridLines: false,
+			},
+
+			// label settings
+			labels: {
+				// Boolean - if true show labels
+				show: true,
+
+				// String - template string for labels
+				template: "<%=value%>",
+
+				// Number - label font size
+				fontSize: 12,
+
+				// String - label font style
+				fontStyle: "normal",
+
+				// String - label font color
+				fontColor: "#666",
+
+				// String - label font family
+				fontFamily: "Helvetica Neue",
+			},
+		}],
+		yAxes: [{
+			// String - type of axis. 'linear' is the default but extensions may provide other types such as logarithmic
+			scaleType: "linear",
+
+			// Boolean - if true, show the scale
+			display: true,
+
+			// String - position of axis. Vertical axes can have either "left" or "right"
+			position: "left",
+
+			// ID of the axis for data binding
+			id: "y-axis-1",
+
+			// grid line settings
+			gridLines: {
+				// Boolean - if true, show the grid lines
+				show: true,
+
+				// String - color of the grid lines
+				color: "rgba(0, 0, 0, 0.05)",
+
+				// Number - width of the grid lines
+				lineWidth: 1,
+
+				// Boolean - if true draw lines on the chart area
+				drawOnChartArea: true,
+
+				// Boolean - if true draw ticks in the axis area
+				drawTicks: true,
+
+				// Number - width of the grid line representing a numerical value of 0
+				zeroLineWidth: 1,
+
+				// String - color of the grid line representing a numerical value of 0
+				zeroLineColor: "rgba(0,0,0,0.25)",
+			},
+
+			// Boolean - if true ensures that the scale always has a 0 point
+			beginAtZero: false,
+
+			// Object - if specified, allows the user to override the step generation algorithm.
+			//			Contains the following values
+			//				start: // number to start at
+			//				stepWidth: // size of step
+			//				steps: // number of steps
+			override: null,
+
+			// label settings
+			labels: {
+				// Boolean - if true show labels
+				show: true,
+
+				// String - template string for labels
+				template: "<%=value%>",
+
+				// Function - if specified this is passed the tick value, index, and the array of all tick values. Returns a string that is used as the label for that value
+				userCallback: null,
+
+				// Number - label font size
+				fontSize: 12,
+
+				// String - label font style
+				fontStyle: "normal",
+
+				// String - label font color
+				fontColor: "#666",
+
+				// String - label font family
+				fontFamily: "Helvetica Neue",
+			},
+		}],
+	},
+};
+```
+
+You can override these for your `Chart` instance by passing a second argument into the `Bar` method as an object with the keys you want to override.
+
+For example, we could have a bar chart without a stroke on each bar by doing the following:
+
+```javascript
+new Chart(ctx).Bar({
+	data: data, 
+	options: {
+		barShowStroke: false
+	}
+});
+// This will create a chart with all of the default options, merged from the global config,
+//  and the Bar chart defaults but this particular instance will have `barShowStroke` set to false.
+```
+
+We can also change these defaults values for each Bar type that is created, this object is available at `Chart.defaults.Bar`.
+
+### Prototype methods
+
+#### .getBarsAtEvent( event )
+
+Calling `getBarsAtEvent(event)` on your Chart instance passing an argument of an event, or jQuery event, will return the bar elements that are at that the same position of that event.
+
+```javascript
+canvas.onclick = function(evt){
+	var activeBars = myBarChart.getBarsAtEvent(evt);
+	// => activeBars is an array of bars on the canvas that are at the same position as the click event.
+};
+```
+
+This functionality may be useful for implementing DOM based tooltips, or triggering custom behaviour in your application.
+
+#### .update( )
+
+Calling `update()` on your Chart instance will re-render the chart with any updated values, allowing you to edit the value of multiple existing points, then render those in one animated render loop.
+
+```javascript
+myBarChart.datasets[0].bars[2].value = 50;
+// Would update the first dataset's value of 'March' to be 50
+myBarChart.update();
+// Calling update now animates the position of March from 90 to 50.
+```
+
+#### .addData( valuesArray, label )
+
+Calling `addData(valuesArray, label)` on your Chart instance passing an array of values for each dataset, along with a label for those bars.
+
+```javascript
+// The values array passed into addData should be one for each dataset in the chart
+myBarChart.addData([40, 60], "August");
+// The new data will now animate at the end of the chart.
+```
+
+#### .removeData( )
+
+Calling `removeData()` on your Chart instance will remove the first value for all datasets on the chart.
+
+```javascript
+myBarChart.removeData();
+// The chart will now animate and remove the first bar
+```

docs/04-Radar-Chart.md

@@ -0,0 +1,177 @@
+---
+title: Radar Chart
+anchor: radar-chart
+---
+
+###Introduction
+A radar chart is a way of showing multiple data points and the variation between them.
+
+They are often useful for comparing the points of two or more different data sets.
+
+<div class="canvas-holder">
+	<canvas width="250" height="125"></canvas>
+</div>
+
+###Example usage
+
+```javascript
+var myRadarChart = new Chart(ctx).Radar(data, options);
+```
+
+###Data structure
+```javascript
+var data = {
+	labels: ["Eating", "Drinking", "Sleeping", "Designing", "Coding", "Cycling", "Running"],
+	datasets: [
+		{
+			label: "My First dataset",
+			fillColor: "rgba(220,220,220,0.2)",
+			strokeColor: "rgba(220,220,220,1)",
+			pointColor: "rgba(220,220,220,1)",
+			pointStrokeColor: "#fff",
+			pointHighlightFill: "#fff",
+			pointHighlightStroke: "rgba(220,220,220,1)",
+			data: [65, 59, 90, 81, 56, 55, 40]
+		},
+		{
+			label: "My Second dataset",
+			fillColor: "rgba(151,187,205,0.2)",
+			strokeColor: "rgba(151,187,205,1)",
+			pointColor: "rgba(151,187,205,1)",
+			pointStrokeColor: "#fff",
+			pointHighlightFill: "#fff",
+			pointHighlightStroke: "rgba(151,187,205,1)",
+			data: [28, 48, 40, 19, 96, 27, 100]
+		}
+	]
+};
+```
+For a radar chart, to provide context of what each point means, we include an array of strings that show around each point in the chart.
+For the radar chart data, we have an array of datasets. Each of these is an object, with a fill colour, a stroke colour, a colour for the fill of each point, and a colour for the stroke of each point. We also have an array of data values.
+
+The label key on each dataset is optional, and can be used when generating a scale for the chart.
+
+### Chart options
+
+These are the customisation options specific to Radar charts. These options are merged with the [global chart configuration options](#getting-started-global-chart-configuration), and form the options of the chart.
+
+
+```javascript
+{
+	//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,
+	{% raw %}
+	//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>"
+	{% endraw %}
+}
+```
+
+
+You can override these for your `Chart` instance by passing a second argument into the `Radar` method as an object with the keys you want to override.
+
+For example, we could have a radar chart without a point for each on piece of data by doing the following:
+
+```javascript
+new Chart(ctx).Radar(data, {
+	pointDot: false
+});
+// This will create a chart with all of the default options, merged from the global config,
+//  and the Bar chart defaults but this particular instance will have `pointDot` set to false.
+```
+
+We can also change these defaults values for each Radar type that is created, this object is available at `Chart.defaults.Radar`.
+
+
+### Prototype methods
+
+#### .getPointsAtEvent( event )
+
+Calling `getPointsAtEvent(event)` on your Chart instance passing an argument of an event, or jQuery event, will return the point elements that are at that the same position of that event.
+
+```javascript
+canvas.onclick = function(evt){
+	var activePoints = myRadarChart.getPointsAtEvent(evt);
+	// => activePoints is an array of points on the canvas that are at the same position as the click event.
+};
+```
+
+This functionality may be useful for implementing DOM based tooltips, or triggering custom behaviour in your application.
+
+#### .update( )
+
+Calling `update()` on your Chart instance will re-render the chart with any updated values, allowing you to edit the value of multiple existing points, then render those in one animated render loop.
+
+```javascript
+myRadarChart.datasets[0].points[2].value = 50;
+// Would update the first dataset's value of 'Sleeping' to be 50
+myRadarChart.update();
+// Calling update now animates the position of Sleeping from 90 to 50.
+```
+
+#### .addData( valuesArray, label )
+
+Calling `addData(valuesArray, label)` on your Chart instance passing an array of values for each dataset, along with a label for those points.
+
+```javascript
+// The values array passed into addData should be one for each dataset in the chart
+myRadarChart.addData([40, 60], "Dancing");
+// The new data will now animate at the end of the chart.
+```
+
+#### .removeData( )
+
+Calling `removeData()` on your Chart instance will remove the first value for all datasets on the chart.
+
+```javascript
+myRadarChart.removeData();
+// Other points will now animate to their correct positions.
+```

docs/05-Polar-Area-Chart.md

@@ -0,0 +1,172 @@
+---
+title: Polar Area Chart
+anchor: polar-area-chart
+---
+### Introduction
+Polar area charts are similar to pie charts, but each segment has the same angle - the radius of the segment differs depending on the value.
+
+This type of chart is often useful when we want to show a comparison data similar to a pie chart, but also show a scale of values for context.
+
+<div class="canvas-holder">
+	<canvas width="250" height="125"></canvas>
+</div>
+
+### Example usage
+
+```javascript
+new Chart(ctx).PolarArea(data, options);
+```
+
+### Data structure
+
+```javascript
+var data = [
+	{
+		value: 300,
+		color:"#F7464A",
+		highlight: "#FF5A5E",
+		label: "Red"
+	},
+	{
+		value: 50,
+		color: "#46BFBD",
+		highlight: "#5AD3D1",
+		label: "Green"
+	},
+	{
+		value: 100,
+		color: "#FDB45C",
+		highlight: "#FFC870",
+		label: "Yellow"
+	},
+	{
+		value: 40,
+		color: "#949FB1",
+		highlight: "#A8B3C5",
+		label: "Grey"
+	},
+	{
+		value: 120,
+		color: "#4D5360",
+		highlight: "#616774",
+		label: "Dark Grey"
+	}
+
+];
+```
+As you can see, for the chart data you pass in an array of objects, with a value and a colour. The value attribute should be a number, while the color attribute should be a string. Similar to CSS, for this string you can use HEX notation, RGB, RGBA or HSL.
+
+### Chart options
+
+These are the customisation options specific to Polar Area charts. These options are merged with the [global chart configuration options](#getting-started-global-chart-configuration), and form the options of the chart.
+
+```javascript
+{
+	//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,
+	{% raw %}
+	//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>"
+	{% endraw %}
+}
+```
+
+You can override these for your `Chart` instance by passing a second argument into the `PolarArea` method as an object with the keys you want to override.
+
+For example, we could have a polar area chart with a black stroke on each segment like so:
+
+```javascript
+new Chart(ctx).PolarArea(data, {
+	segmentStrokeColor: "#000000"
+});
+// This will create a chart with all of the default options, merged from the global config,
+// and the PolarArea chart defaults but this particular instance will have `segmentStrokeColor` set to `"#000000"`.
+```
+
+We can also change these defaults values for each PolarArea type that is created, this object is available at `Chart.defaults.PolarArea`.
+
+### Prototype methods
+
+#### .getSegmentsAtEvent( event )
+
+Calling `getSegmentsAtEvent(event)` on your Chart instance passing an argument of an event, or jQuery event, will return the segment elements that are at that the same position of that event.
+
+```javascript
+canvas.onclick = function(evt){
+	var activePoints = myPolarAreaChart.getSegmentsAtEvent(evt);
+	// => activePoints is an array of segments on the canvas that are at the same position as the click event.
+};
+```
+
+This functionality may be useful for implementing DOM based tooltips, or triggering custom behaviour in your application.
+
+#### .update( )
+
+Calling `update()` on your Chart instance will re-render the chart with any updated values, allowing you to edit the value of multiple existing points, then render those in one animated render loop.
+
+```javascript
+myPolarAreaChart.segments[1].value = 10;
+// Would update the first dataset's value of 'Green' to be 10
+myPolarAreaChart.update();
+// Calling update now animates the position of Green from 50 to 10.
+```
+
+#### .addData( segmentData, index )
+
+Calling `addData(segmentData, index)` on your Chart instance passing an object in the same format as in the constructor. There is an option second argument of 'index', this determines at what index the new segment should be inserted into the chart.
+
+```javascript
+// An object in the same format as the original data source
+myPolarAreaChart.addData({
+	value: 130,
+	color: "#B48EAD",
+	highlight: "#C69CBE",
+	label: "Purple"
+});
+// The new segment will now animate in.
+```
+
+#### .removeData( index )
+
+Calling `removeData(index)` on your Chart instance will remove segment at that particular index. If none is provided, it will default to the last segment.
+
+```javascript
+myPolarAreaChart.removeData();
+// Other segments will update to fill the empty space left.
+```

docs/06-Pie-Doughnut-Chart.md

@@ -0,0 +1,158 @@
+---
+title: Pie & Doughnut Charts
+anchor: doughnut-pie-chart
+---
+###Introduction
+Pie and doughnut charts are probably the most commonly used chart there are. They are divided into segments, the arc of each segment shows the proportional value of each piece of data.
+
+They are excellent at showing the relational proportions between data.
+
+Pie and doughnut charts are effectively the same class in Chart.js, but have one different default value - their `percentageInnerCutout`. This equates what percentage of the inner should be cut out. This defaults to `0` for pie charts, and `50` for doughnuts.
+
+They are also registered under two aliases in the `Chart` core. Other than their different default value, and different alias, they are exactly the same.
+
+<div class="canvas-holder half">
+	<canvas width="250" height="125"></canvas>
+</div>
+
+<div class="canvas-holder half">
+	<canvas width="250" height="125"></canvas>
+</div>
+
+
+### Example usage
+
+```javascript
+// For a pie chart
+var myPieChart = new Chart(ctx[0]).Pie(data,options);
+
+// And for a doughnut chart
+var myDoughnutChart = new Chart(ctx[1]).Doughnut(data,options);
+```
+
+### Data structure
+
+```javascript
+var data = [
+	{
+		value: 300,
+		color:"#F7464A",
+		highlight: "#FF5A5E",
+		label: "Red"
+	},
+	{
+		value: 50,
+		color: "#46BFBD",
+		highlight: "#5AD3D1",
+		label: "Green"
+	},
+	{
+		value: 100,
+		color: "#FDB45C",
+		highlight: "#FFC870",
+		label: "Yellow"
+	}
+]
+```
+
+For a pie chart, you must pass in an array of objects with a value and an optional color property. The value attribute should be a number, Chart.js will total all of the numbers and calculate the relative proportion of each. The color attribute should be a string. Similar to CSS, for this string you can use HEX notation, RGB, RGBA or HSL.
+
+### Chart options
+
+These are the customisation options specific to Pie & Doughnut charts. These options are merged with the [global chart configuration options](#getting-started-global-chart-configuration), and form the options of the chart.
+
+```javascript
+{
+	//Boolean - Whether we should show a stroke on each segment
+	segmentShowStroke : true,
+
+	//String - The colour of each segment stroke
+	segmentStrokeColor : "#fff",
+
+	//Number - The width of each segment stroke
+	segmentStrokeWidth : 2,
+
+	//Number - The percentage of the chart that we cut out of the middle
+	percentageInnerCutout : 50, // This is 0 for Pie charts
+
+	//Number - Amount of animation steps
+	animationSteps : 100,
+
+	//String - Animation easing effect
+	animationEasing : "easeOutBounce",
+
+	//Boolean - Whether we animate the rotation of the Doughnut
+	animateRotate : true,
+
+	//Boolean - Whether we animate scaling the Doughnut from the centre
+	animateScale : false,
+	{% raw %}
+	//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>"
+	{% endraw %}
+}
+```
+You can override these for your `Chart` instance by passing a second argument into the `Doughnut` method as an object with the keys you want to override.
+
+For example, we could have a doughnut chart that animates by scaling out from the centre like so:
+
+```javascript
+new Chart(ctx).Doughnut(data, {
+	animateScale: true
+});
+// This will create a chart with all of the default options, merged from the global config,
+// and the Doughnut chart defaults but this particular instance will have `animateScale` set to `true`.
+```
+
+We can also change these default values for each Doughnut type that is created, this object is available at `Chart.defaults.Doughnut`. Pie charts also have a clone of these defaults available to change at `Chart.defaults.Pie`, with the only difference being `percentageInnerCutout` being set to 0.
+
+### Prototype methods
+
+#### .getSegmentsAtEvent( event )
+
+Calling `getSegmentsAtEvent(event)` on your Chart instance passing an argument of an event, or jQuery event, will return the segment elements that are at the same position of that event.
+
+```javascript
+canvas.onclick = function(evt){
+	var activePoints = myDoughnutChart.getSegmentsAtEvent(evt);
+	// => activePoints is an array of segments on the canvas that are at the same position as the click event.
+};
+```
+
+This functionality may be useful for implementing DOM based tooltips, or triggering custom behaviour in your application.
+
+#### .update( )
+
+Calling `update()` on your Chart instance will re-render the chart with any updated values, allowing you to edit the value of multiple existing points, then render those in one animated render loop.
+
+```javascript
+myDoughnutChart.segments[1].value = 10;
+// Would update the first dataset's value of 'Green' to be 10
+myDoughnutChart.update();
+// Calling update now animates the circumference of the segment 'Green' from 50 to 10.
+// and transitions other segment widths
+```
+
+#### .addData( segmentData, index )
+
+Calling `addData(segmentData, index)` on your Chart instance passing an object in the same format as in the constructor. There is an optional second argument of 'index', this determines at what index the new segment should be inserted into the chart.
+
+```javascript
+// An object in the same format as the original data source
+myDoughnutChart.addData({
+	value: 130,
+	color: "#B48EAD",
+	highlight: "#C69CBE",
+	label: "Purple"
+});
+// The new segment will now animate in.
+```
+
+#### .removeData( index )
+
+Calling `removeData(index)` on your Chart instance will remove segment at that particular index. If none is provided, it will default to the last segment.
+
+```javascript
+myDoughnutChart.removeData();
+// Other segments will update to fill the empty space left.
+```

docs/07-Advanced.md

@@ -0,0 +1,187 @@
+---
+title: Advanced usage
+anchor: advanced-usage
+---
+
+
+### Prototype methods
+
+For each chart, there are a set of global prototype methods on the shared `ChartType` which you may find useful. These are available on all charts created with Chart.js, but for the examples, let's use a line chart we've made.
+
+```javascript
+// For example:
+var myLineChart = new Chart(ctx).Line(data);
+```
+
+#### .clear()
+
+Will clear the chart canvas. Used extensively internally between animation frames, but you might find it useful.
+
+```javascript
+// Will clear the canvas that myLineChart is drawn on
+myLineChart.clear();
+// => returns 'this' for chainability
+```
+
+#### .stop()
+
+Use this to stop any current animation loop. This will pause the chart during any current animation frame. Call `.render()` to re-animate.
+
+```javascript
+// Stops the charts animation loop at its current frame
+myLineChart.stop();
+// => returns 'this' for chainability
+```
+
+#### .resize()
+
+Use this to manually resize the canvas element. This is run each time the browser is resized, but you can call this method manually if you change the size of the canvas nodes container element.
+
+```javascript
+// Resizes & redraws to fill its container element
+myLineChart.resize();
+// => returns 'this' for chainability
+```
+
+#### .destroy()
+
+Use this to destroy any chart instances that are created. This will clean up any references stored to the chart object within Chart.js, along with any associated event listeners attached by Chart.js.
+
+```javascript
+// Destroys a specific chart instance
+myLineChart.destroy();
+```
+
+#### .toBase64Image()
+
+This returns a base 64 encoded string of the chart in it's current state.
+
+```javascript
+myLineChart.toBase64Image();
+// => returns png data url of the image on the canvas
+```
+
+#### .generateLegend()
+
+Returns an HTML string of a legend for that chart. The template for this legend is at `legendTemplate` in the chart options.
+
+```javascript
+myLineChart.generateLegend();
+// => returns HTML string of a legend for this chart
+```
+
+### External Tooltips
+
+You can enable custom tooltips in the global or chart configuration like so:
+
+```javascript
+var myPieChart = new Chart(ctx).Pie(data, {
+	customTooltips: function(tooltip) {
+
+        // tooltip will be false if tooltip is not visible or should be hidden
+        if (!tooltip) {
+            return;
+        }
+
+        // Otherwise, tooltip will be an object with all tooltip properties like:
+
+        // tooltip.caretHeight
+        // tooltip.caretPadding
+        // tooltip.chart
+        // tooltip.cornerRadius
+        // tooltip.fillColor
+        // tooltip.font...
+        // tooltip.text
+        // tooltip.x
+        // tooltip.y
+        // etc...
+
+    };
+});
+```
+
+See files `sample/pie-customTooltips.html` and `sample/line-customTooltips.html` for examples on how to get started.
+
+
+### Writing new chart types
+
+Chart.js 1.0 has been rewritten to provide a platform for developers to create their own custom chart types, and be able to share and utilise them through the Chart.js API.
+
+The format is relatively simple, there are a set of utility helper methods under `Chart.helpers`, including things such as looping over collections, requesting animation frames, and easing equations.
+
+On top of this, there are also some simple base classes of Chart elements, these all extend from `Chart.Element`, and include things such as points, bars and scales.
+
+```javascript
+Chart.Type.extend({
+	// Passing in a name registers this chart in the Chart namespace
+	name: "Scatter",
+	// Providing a defaults will also register the deafults in the chart namespace
+	defaults : {
+		options: "Here",
+		available: "at this.options"
+	},
+	// Initialize is fired when the chart is initialized - Data is passed in as a parameter
+	// Config is automatically merged by the core of Chart.js, and is available at this.options
+	initialize:  function(data){
+		this.chart.ctx // The drawing context for this chart
+		this.chart.canvas // the canvas node for this chart
+	},
+	// Used to draw something on the canvas
+	draw: function() {
+	}
+});
+
+// Now we can create a new instance of our chart, using the Chart.js API
+new Chart(ctx).Scatter(data);
+// initialize is now run
+```
+
+### Extending existing chart types
+
+We can also extend existing chart types, and expose them to the API in the same way. Let's say for example, we might want to run some more code when we initialize every Line chart.
+
+```javascript
+// Notice now we're extending the particular Line chart type, rather than the base class.
+Chart.types.Line.extend({
+	// Passing in a name registers this chart in the Chart namespace in the same way
+	name: "LineAlt",
+	initialize: function(data){
+		console.log('My Line chart extension');
+		Chart.types.Line.prototype.initialize.apply(this, arguments);
+	}
+});
+
+// Creates a line chart in the same way
+new Chart(ctx).LineAlt(data);
+// but this logs 'My Line chart extension' in the console.
+```
+
+### Community extensions
+
+- <a href="https://github.com/Regaddi/Chart.StackedBar.js" target="_blank">Stacked Bar Chart</a> by <a href="https://twitter.com/Regaddi" target="_blank">@Regaddi</a>
+- <a href="https://github.com/tannerlinsley/Chart.StackedArea.js" target="_blank">Stacked Bar Chart</a> by <a href="https://twitter.com/tannerlinsley" target="_blank">@tannerlinsley</a>
+- <a href="https://github.com/CAYdenberg/Chart.js" target="_blank">Error bars (bar and line charts)</a> by <a href="https://twitter.com/CAYdenberg" target="_blank">@CAYdenberg</a>
+- <a href="http://dima117.github.io/Chart.Scatter/" target="_blank">Scatter chart (number & date scales are supported)</a> by <a href="https://github.com/dima117" target="_blank">@dima117</a>
+
+### Creating custom builds
+
+Chart.js uses <a href="http://gulpjs.com/" target="_blank">gulp</a> to build the library into a single JavaScript file. We can use this same build script with custom parameters in order to build a custom version.
+
+Firstly, we need to ensure development dependencies are installed. With node and npm installed, after cloning the Chart.js repo to a local directory, and navigating to that directory in the command line, we can run the following:
+
+```bash
+npm install
+npm install -g gulp
+```
+
+This will install the local development dependencies for Chart.js, along with a CLI for the JavaScript task runner <a href="http://gulpjs.com/" target="_blank">gulp</a>.
+
+Now, we can run the `gulp build` task, and pass in a comma seperated list of types as an argument to build a custom version of Chart.js with only specified chart types.
+
+Here we will create a version of Chart.js with only Line, Radar and Bar charts included:
+
+```bash
+gulp build --types=Line,Radar,Bar
+```
+
+This will output to the `/custom` directory, and write two files, Chart.js, and Chart.min.js with only those chart types included.

docs/08-Notes.md

@@ -0,0 +1,42 @@
+---
+title: Notes
+anchor: notes
+---
+
+### Browser support
+Browser support for the canvas element is available in all modern & major mobile browsers <a href="http://caniuse.com/canvas" target="_blank">(caniuse.com/canvas)</a>.
+
+For IE8 & below, I would recommend using the polyfill ExplorerCanvas - available at <a href="https://code.google.com/p/explorercanvas/" target="_blank">https://code.google.com/p/explorercanvas/</a>. It falls back to Internet explorer's format VML when canvas support is not available. Example use:
+
+```html
+<head>
+	<!--[if lte IE 8]>
+		<script src="excanvas.js"></script>
+	<![endif]-->
+</head>
+```
+
+Usually I would recommend feature detection to choose whether or not to load a polyfill, rather than IE conditional comments, however in this case, VML is a Microsoft proprietary format, so it will only work in IE.
+
+Some important points to note in my experience using ExplorerCanvas as a fallback.
+
+- Initialise charts on load rather than DOMContentReady when using the library, as sometimes a race condition will occur, and it will result in an error when trying to get the 2d context of a canvas.
+- New VML DOM elements are being created for each animation frame and there is no hardware acceleration. As a result animation is usually slow and jerky, with flashing text. It is a good idea to dynamically turn off animation based on canvas support. I recommend using the excellent <a href="http://modernizr.com/" target="_blank">Modernizr</a> to do this.
+- When declaring fonts, the library explorercanvas requires the font name to be in single quotes inside the string. For example, instead of your scaleFontFamily property being simply "Arial", explorercanvas support, use "'Arial'" instead. Chart.js does this for default values.
+
+### Bugs & issues
+
+Please report these on the GitHub page - at <a href="https://github.com/nnnick/Chart.js" target="_blank">github.com/nnnick/Chart.js</a>. If you could include a link to a simple <a href="http://jsbin.com/" target="_blank">jsbin</a> or similar to demonstrate the issue, that'd be really helpful.
+
+
+### Contributing
+New contributions to the library are welcome, just a couple of guidelines:
+
+- Tabs for indentation, not spaces please.
+- Please ensure you're changing the individual files in `/src`, not the concatenated output in the `Chart.js` file in the root of the repo.
+- Please check that your code will pass `jshint` code standards, `gulp jshint` will run this for you.
+- Please keep pull requests concise, and document new functionality in the relevant `.md` file.
+- Consider whether your changes are useful for all users, or if creating a Chart.js extension would be more appropriate.
+
+### License
+Chart.js is open source and available under the <a href="http://opensource.org/licenses/MIT" target="_blank">MIT license</a>.

docs/index.html

@@ -1,766 +0,0 @@
-<!doctype html>
-<html>
-	<head>
-		<title>Chart.js Documentation</title>
-		<link href="styles.css" rel="stylesheet">
-		<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
-		<script src="prettify.js"></script>
-		<script src="Chart.js"></script>
-		<script type="text/javascript" src="//use.typekit.net/puc1imu.js"></script>
-		<script type="text/javascript">try{Typekit.load();}catch(e){}</script>
-	</head>
-	<body>
-	<div class="redBorder"></div>
-	<div class="greenBorder"></div>
-	<div class="yellowBorder"></div>
-	<div id="wrapper">
-		<nav>	
-			<dl>
-			</dl>
-		</nav>
-		
-		<div id="contentWrapper">
-			<h1 id="mainHeader">Chart.js Documentation</h1>
-			<h2 id="introText">Everything you need to know to create great looking charts using Chart.js</h2>
-			<article id="gettingStarted">
-				<h1>Getting started</h1>
-				<h2>Include Chart.js</h2>
-				<p>First we need to include the Chart.js library on the page. The library occupies a global variable of <code>Chart</code>.</p>
-				<pre data-type="html"><code>&lt;script src=&quot;Chart.js&quot;&gt;&lt;/script&gt;</code></pre>
-				<h2>Creating a chart</h2>
-				<p>To create a chart, we need to instantiate the Chart class. To do this, we need to pass in the 2d context of where we want to draw the chart. Here's an example.</p>
-				<pre data-type="html"><code>&lt;canvas id=&quot;myChart&quot; width=&quot;400&quot; height=&quot;400&quot;&gt;&lt;/canvas&gt;</code></pre>
-				<pre data-type="javascript"><code>//Get the context of the canvas element we want to select
-var ctx = document.getElementById("myChart").getContext("2d");
-var myNewChart = new Chart(ctx).PolarArea(data);</code></pre>
-				<p>We can also get the context of our canvas with jQuery. To do this, we need to get the DOM node out of the jQuery collection, and call the <code>getContext("2d")</code> method on that.</p>
-				<pre data-type="javascript"><code>//Get context with jQuery - using jQuery's .get() method.
-var ctx = $("#myChart").get(0).getContext("2d");
-//This will get the first returned node in the jQuery collection.
-var myNewChart = new Chart(ctx);</code></pre>
-				<p>After we've instantiated the Chart class on the canvas we want to draw on, Chart.js will handle the scaling for retina displays.</p>
-				<p>With the Chart class set up, we can go on to create one of the charts Chart.js has available. In the example below, we would be drawing a Polar area chart.</p>
-				<pre data-type="javascript"><code>new Chart(ctx).PolarArea(data,options);</code></pre>
-				<p>We call a method of the name of the chart we want to create. We pass in the data for that chart type, and the options for that chart as parameters. Chart.js will merge the options you pass in with the default options for that chart type.</p>
-			</article>	
-			
-<article id="lineChart">
-				<h1>Line chart</h1>
-				<h2>Introduction</h2>
-				<p>A line chart is a way of plotting data points on a line.</p>
-				<p>Often, it is used to show trend data, and the comparison of two data sets.</p>
-				<h2>Example usage</h2>
-				<canvas id="line" data-type="Line" width="600" height="400"></canvas>
-				<pre data-type="javascript"><code>new Chart(ctx).Line(data,options);</code></pre>
-				<h2>Data structure</h2>	
-				<pre data-type="javascript"><code data-for="line">var data = {
-	labels : ["January","February","March","April","May","June","July"],
-	datasets : [
-		{
-			fillColor : "rgba(220,220,220,0.5)",
-			strokeColor : "rgba(220,220,220,1)",
-			pointColor : "rgba(220,220,220,1)",
-			pointStrokeColor : "#fff",
-			data : [65,59,90,81,56,55,40]
-		},
-		{
-			fillColor : "rgba(151,187,205,0.5)",
-			strokeColor : "rgba(151,187,205,1)",
-			pointColor : "rgba(151,187,205,1)",
-			pointStrokeColor : "#fff",
-			data : [28,48,40,19,96,27,100]
-		}
-	]
-}</code></pre>
-				<p>The line chart requires an array of labels for each of the data points. This is show on the X axis.</p>
-				<p>The data for line charts is broken up into an array of datasets. Each dataset has a colour for the fill, a colour for the line and colours for the points and strokes of the points. These colours are strings just like CSS. You can use RGBA, RGB, HEX or HSL notation.</p>
-				
-				<h2>Chart options</h2>
-				<pre data-type="javascript"><code>Line.defaults = {
-				
-	//Boolean - If we show the scale above the chart data			
-	scaleOverlay : false,
-	
-	//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%>",
-	
-	//String - Scale label font declaration for the scale label
-	scaleFontFamily : "'Arial'",
-	
-	//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 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 the line is curved between points
-	bezierCurve : true,
-	
-	//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,
-	
-	//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,
-	
-	//Boolean - Whether to animate the chart
-	animation : true,
-
-	//Number - Number of animation steps
-	animationSteps : 60,
-	
-	//String - Animation easing effect
-	animationEasing : "easeOutQuart",
-
-	//Function - Fires when the animation is complete
-	onAnimationComplete : null
-	
-}</code></pre>
-			</article>	
-			
-<article id="barChart">
-				<h1>Bar chart</h1>
-				<h2>Introduction</h2>
-				<p>A bar chart is a way of showing data as bars.</p>
-				<p>It is sometimes used to show trend data, and the comparison of multiple data sets side by side.</p>
-				<h2>Example usage</h2>
-				<canvas id="bar" data-type="Bar" width="600" height="400"></canvas>
-				<pre data-type="javascript"><code>new Chart(ctx).Bar(data,options);</code></pre>
-				<h2>Data structure</h2>	
-				<pre data-type="javascript"><code data-for="bar">var data = {
-	labels : ["January","February","March","April","May","June","July"],
-	datasets : [
-		{
-			fillColor : "rgba(220,220,220,0.5)",
-			strokeColor : "rgba(220,220,220,1)",
-			data : [65,59,90,81,56,55,40]
-		},
-		{
-			fillColor : "rgba(151,187,205,0.5)",
-			strokeColor : "rgba(151,187,205,1)",
-			data : [28,48,40,19,96,27,100]
-		}
-	]
-}</code></pre>
-				<p>The bar chart has the a very similar data structure to the line chart, and has an array of datasets, each with colours and an array of data. Again, colours are in CSS format.</p>
-				<p>We have an array of labels too for display. In the example, we are showing the same data as the previous line chart example.</p>
-				
-				<h2>Chart options</h2>
-				<pre data-type="javascript"><code>Bar.defaults = {
-				
-	//Boolean - If we show the scale above the chart data			
-	scaleOverlay : false,
-	
-	//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%>",
-	
-	//String - Scale label font declaration for the scale label
-	scaleFontFamily : "'Arial'",
-	
-	//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 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 - If there is a stroke on each bar	
-	barShowStroke : true,
-	
-	//Number - Pixel width of the bar stroke	
-	barStrokeWidth : 2,
-	
-	//Number - Spacing between each of the X value sets
-	barValueSpacing : 5,
-	
-	//Number - Spacing between data sets within X values
-	barDatasetSpacing : 1,
-	
-	//Boolean - Whether to animate the chart
-	animation : true,
-
-	//Number - Number of animation steps
-	animationSteps : 60,
-	
-	//String - Animation easing effect
-	animationEasing : "easeOutQuart",
-
-	//Function - Fires when the animation is complete
-	onAnimationComplete : null
-	
-}</code></pre>
-			</article>						
-			
-			<article id="radarChart">
-				<h1>Radar chart</h1>
-				<h2>Introduction</h2>
-				<p>A radar chart is a way of showing multiple data points and the variation between them.</p>
-				<p>They are often useful for comparing the points of two or more different data sets</p>
-				<h2>Example usage</h2>
-				<canvas id="radar" data-type="Radar" width="400" height="400"></canvas>
-				<pre data-type="javascript"><code>new Chart(ctx).Radar(data,options);</code></pre>
-				<h2>Data structure</h2>	
-				<pre data-type="javascript"><code data-for="radar">var data = {
-	labels : ["Eating","Drinking","Sleeping","Designing","Coding","Partying","Running"],
-	datasets : [
-		{
-			fillColor : "rgba(220,220,220,0.5)",
-			strokeColor : "rgba(220,220,220,1)",
-			pointColor : "rgba(220,220,220,1)",
-			pointStrokeColor : "#fff",
-			data : [65,59,90,81,56,55,40]
-		},
-		{
-			fillColor : "rgba(151,187,205,0.5)",
-			strokeColor : "rgba(151,187,205,1)",
-			pointColor : "rgba(151,187,205,1)",
-			pointStrokeColor : "#fff",
-			data : [28,48,40,19,96,27,100]
-		}
-	]
-}</code></pre>
-				<p>For a radar chart, usually you will want to show a label on each point of the chart, so we include an array of strings that we show around each point in the chart. If you do not want this, you can either not include the array of labels, or choose to hide them in the chart options.</p>
-				<p>For the radar chart data, we have an array of datasets. Each of these is an object, with a fill colour, a stroke colour, a colour for the fill of each point, and a colour for the stroke of each point. We also have an array of data values.</p>
-				
-				<h2>Chart options</h2>
-				<pre data-type="javascript"><code>Radar.defaults = {
-				
-	//Boolean - If we show the scale above the chart data			
-	scaleOverlay : false,
-	
-	//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 centre starting value
-	scaleStartValue : null,
-	
-	//Boolean - Whether to show lines for each scale point
-	scaleShowLine : true,
-
-	//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 : false,
-	
-	//Interpolated JS string - can access value
-	scaleLabel : "<%=value%>",
-	
-	//String - Scale label font declaration for the scale label
-	scaleFontFamily : "'Arial'",
-	
-	//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 - Show a backdrop to the scale label
-	scaleShowLabelBackdrop : true,
-	
-	//String - The colour of the label backdrop	
-	scaleBackdropColor : "rgba(255,255,255,0.75)",
-	
-	//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 - Whether we show the angle lines out of the radar
-	angleShowLineOut : 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 : 12,
-	
-	//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,
-	
-	//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,
-	
-	//Boolean - Whether to animate the chart
-	animation : true,
-
-	//Number - Number of animation steps
-	animationSteps : 60,
-	
-	//String - Animation easing effect
-	animationEasing : "easeOutQuart",
-
-	//Function - Fires when the animation is complete
-	onAnimationComplete : null
-	
-}</code></pre>
-			</article>			
-			
-			<article id="polarAreaChart">
-				<h1>Polar area chart</h1>
-				<h2>Introduction</h2>
-				<p>Polar area charts are similar to pie charts, but each segment has the same angle - the radius of the segment differs depending on the value.</p>
-				<p>This type of chart is often useful when we want to show a comparison data similar to a pie chart, but also show a scale of values for context.</p>
-				<h2>Example usage</h2>
-				<canvas id="polarArea" data-type="PolarArea" width="300" height="300"></canvas>
-				<pre data-type="javascript"><code>new Chart(ctx).PolarArea(data,options);</code></pre>
-				<h2>Data structure</h2>
-				<pre data-type="javascript"><code data-for="polarArea">var data = [
-	{
-		value : 30,
-		color: "#D97041"
-	},
-	{
-		value : 90,
-		color: "#C7604C"
-	},
-	{
-		value : 24,
-		color: "#21323D"
-	},
-	{
-		value : 58,
-		color: "#9D9B7F"
-	},
-	{
-		value : 82,
-		color: "#7D4F6D"
-	},
-	{
-		value : 8,
-		color: "#584A5E"
-	}
-]</code></pre>
-				<p>As you can see, for the chart data you pass in an array of objects, with a value and a colour. The <code>value</code> attribute should be a number, while the <code>color</code> attribute should be a string. Similar to CSS, for this string you can use HEX notation, RGB, RGBA or HSL.</p>
-				<h2>Chart options</h2>
-				<p>These are the default chart options. By passing in an object with any of these attributes, Chart.js will merge these objects and the graph accordingly. Explanations of each option are commented in the code below.</p>
-				<pre data-type="javascript"><code>PolarArea.defaults = {
-				
-	//Boolean - Whether we show the scale above or below the chart segments
-	scaleOverlay : 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 centre starting value
-	scaleStartValue : null,
-	
-	//Boolean - Show line for each value in the scale
-	scaleShowLine : true,
-	
-	//String - The colour of the scale line
-	scaleLineColor : "rgba(0,0,0,.1)",
-	
-	//Number - The width of the line - in pixels
-	scaleLineWidth : 1,
-	
-	//Boolean - whether we should show text labels
-	scaleShowLabels : true,
-	
-	//Interpolated JS string - can access value
-	scaleLabel : "<%=value%>",
-	
-	//String - Scale label font declaration for the scale label
-	scaleFontFamily : "'Arial'",
-	
-	//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 - Show a backdrop to the scale label
-	scaleShowLabelBackdrop : true,
-	
-	//String - The colour of the label backdrop	
-	scaleBackdropColor : "rgba(255,255,255,0.75)",
-	
-	//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 - Stroke a line around each segment in the chart
-	segmentShowStroke : true,
-	
-	//String - The colour of the stroke on each segement.
-	segmentStrokeColor : "#fff",
-	
-	//Number - The width of the stroke value in pixels	
-	segmentStrokeWidth : 2,
-	
-	//Boolean - Whether to animate the chart or not
-	animation : true,
-	
-	//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,
-
-	//Function - This will fire when the animation of the chart is complete.
-	onAnimationComplete : null
-}</code></pre>
-			</article>
-			<article id="pieChart">
-				<h1>Pie chart</h1>
-				<h2>Introduction</h2>
-				<p>Pie charts are probably the most commonly used chart there are. They are divided into segments, the arc of each segment shows a the proportional value of each piece of data.</p>
-				<p>They are excellent at showing the relational proportions between data.</p>
-				<h2>Example usage</h2>
-				<canvas id="pie" data-type="Pie" width="400" height="400"></canvas>
-				<pre data-type="javascript"><code>new Chart(ctx).Pie(data,options);</code></pre>
-				<h2>Data structure</h2>
-				<pre data-type="javascript"><code data-for="pie">var data = [
-	{
-		value: 30,
-		color:"#F38630"
-	},
-	{
-		value : 50,
-		color : "#E0E4CC"
-	},
-	{
-		value : 100,
-		color : "#69D2E7"
-	}			
-]</code></pre>
-				<p>For a pie chart, you must pass in an array of objects with a <code>value</code> and a <code>color</code> property. The <code>value</code> attribute should be a number, Chart.js will total all of the numbers and calculate the relative proportion of each. The <code>color</code> attribute should be a string. Similar to CSS, for this string you can use HEX notation, RGB, RGBA or HSL.</p>
-				<h2>Chart options</h2>
-				<p>These are the default options for the Pie chart. Pass in an object with any of these attributes to override them.
-				<pre data-type="javascript"><code>Pie.defaults = {
-	//Boolean - Whether we should show a stroke on each segment
-	segmentShowStroke : true,
-	
-	//String - The colour of each segment stroke
-	segmentStrokeColor : "#fff",
-	
-	//Number - The width of each segment stroke
-	segmentStrokeWidth : 2,
-	
-	//Boolean - Whether we should animate the chart	
-	animation : true,
-	
-	//Number - Amount of animation steps
-	animationSteps : 100,
-	
-	//String - Animation easing effect
-	animationEasing : "easeOutBounce",
-	
-	//Boolean - Whether we animate the rotation of the Pie
-	animateRotate : true,
-
-	//Boolean - Whether we animate scaling the Pie from the centre
-	animateScale : false,
-	
-	//Function - Will fire on animation completion.
-	onAnimationComplete : null
-}</code></pre>
-			</article>
-			<article id="doughnutChart">
-				<h1>Doughnut chart</h1>
-				<h2>Introduction</h2>
-				<p>Doughnut charts are similar to pie charts, however they have the centre cut out, and are therefore shaped more like a doughnut than a pie!</p>
-				<p>They are aso excellent at showing the relational proportions between data.</p>
-				<h2>Example usage</h2>
-				<canvas id="doughnut" data-type="Doughnut" width="400" height="400"></canvas>
-				<pre data-type="javascript"><code>new Chart(ctx).Doughnut(data,options);</code></pre>
-				<h2>Data structure</h2>
-				<pre data-type="javascript"><code data-for="doughnut">var data = [
-	{
-		value: 30,
-		color:"#F7464A"
-	},
-	{
-		value : 50,
-		color : "#E2EAE9"
-	},
-	{
-		value : 100,
-		color : "#D4CCC5"
-	},
-	{
-		value : 40,
-		color : "#949FB1"
-	},
-	{
-		value : 120,
-		color : "#4D5360"
-	}
-
-]</code></pre>
-				<p>For a doughnut chart, you must pass in an array of objects with a <code>value</code> and a <code>color</code> property. The <code>value</code> attribute should be a number, Chart.js will total all of the numbers and calculate the relative proportion of each. The <code>color</code> attribute should be a string. Similar to CSS, for this string you can use HEX notation, RGB, RGBA or HSL.</p>
-				<h2>Chart options</h2>
-				<p>These are the default options for the doughnut chart. Pass in an object with any of these attributes to override them.
-				<pre data-type="javascript"><code>Doughnut.defaults = {
-	//Boolean - Whether we should show a stroke on each segment
-	segmentShowStroke : true,
-	
-	//String - The colour of each segment stroke
-	segmentStrokeColor : "#fff",
-	
-	//Number - The width of each segment stroke
-	segmentStrokeWidth : 2,
-	
-	//The percentage of the chart that we cut out of the middle.
-	percentageInnerCutout : 50,
-	
-	//Boolean - Whether we should animate the chart	
-	animation : true,
-	
-	//Number - Amount of animation steps
-	animationSteps : 100,
-	
-	//String - Animation easing effect
-	animationEasing : "easeOutBounce",
-	
-	//Boolean - Whether we animate the rotation of the Doughnut
-	animateRotate : true,
-
-	//Boolean - Whether we animate scaling the Doughnut from the centre
-	animateScale : false,
-	
-	//Function - Will fire on animation completion.
-	onAnimationComplete : null
-}</code></pre>
-			</article>
-			<article id="generalIssues">
-				<h1>General issues</h1>
-				<h2>Chart interactivity</h2>
-				<p>If you are looking to add interaction as a layer to charts, Chart.js is <strong>not the library for you</strong>. A better option would be using SVG, as this will let you attach event listeners to any of the elements in the chart, as these are all DOM nodes.</p>
-				<p>Chart.js uses the canvas element, which is a single DOM node, similar in characteristics to a static image. This does mean that it has a wider scope for compatibility, and less memory implications than SVG based charting solutions. The canvas element also allows for saving the contents as a base 64 string, allowing saving the chart as an image. </p>
-				<p>In SVG, all of the lines, data points and everything you see is a DOM node. As a result of this, complex charts with a lot of intricacies, or many charts on the page will often see dips in performance when scrolling or generating the chart, especially when there are multiple on the page. SVG also has relatively poor mobile support, with Android not supporting SVG at all before version 3.0, and iOS before 5.0. (<a href="http://caniuse.com/svg-html5" target="_blank">caniuse.com/svg-html5</a>).</p>
-				<h2>Browser support</h2>
-				<p>Browser support for the canvas element is available in all modern & major mobile browsers (<a href="http://caniuse.com/canvas" target="_blank">caniuse.com/canvas</a>).</p>
-				<p>For IE8 & below, I would recommend using the polyfill ExplorerCanvas - available at <a href="https://code.google.com/p/explorercanvas/" target="_blank">https://code.google.com/p/explorercanvas/</a>. It falls back to Internet explorer's format VML when canvas support is not available. Example use:</p>
-				<pre data-type="html"><code>&lt;head&gt;
-	&lt;!--[if lte IE 8]&gt;
-		&lt;script src=&quot;excanvas.js&quot;&gt;&lt;/script&gt;
-	&lt;![endif]--&gt;
-&lt;/head&gt;</code></pre>
-				<p>Usually I would recommend feature detection to choose whether or not to load a polyfill, rather than IE conditional comments, however in this case, VML is a Microsoft proprietary format, so it will only work in IE.</p>
-				<p>Some important points to note in my experience using ExplorerCanvas as a fallback.</p>
-				<ul>
-					<li>Initialise charts on load rather than DOMContentReady when using the library, as sometimes a race condition will occur, and it will result in an error when trying to get the 2d context of a canvas.</li>
-					<li>New VML DOM elements are being created for each animation frame and there is no hardware acceleration. As a result animation is usually slow and jerky, with flashing text. It is a good idea to dynamically turn off animation based on canvas support. I recommend using the excellent <a href="http://modernizr.com/" targer="_blank">Modernizr</a> to do this.</li>
-					<li>When declaring fonts, the library explorercanvas requires the font name to be in single quotes inside the string. For example, instead of your scaleFontFamily property being simply "Arial", explorercanvas support, use "'Arial'" instead. Chart.js does this for default values.</li>
-					
-				</ul>
-				<h2>Bugs &amp; issues</h2>
-				<p>Please report these on the Github page - at <a href="https://github.com/nnnick/Chart.js" target="_blank">github.com/nnnick/Chart.js</a>.</p>
-				<p>New contributions to the library are welcome.</p>
-				<h2>License</h2>
-				<p>Chart.js is open source and available under the <a href="http://opensource.org/licenses/MIT" target="_blank">MIT license</a>.</p>
-			</article>
-		</div>
-	</div>
-	</body>
-	<script>
-	$(document).ready(function(){
-	
-		var $nav = $("nav dl");
-		
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-			var $el = $(this);
-			var $h1 = $el.find("h1");
-			var sectionTitle = $h1.html();
-			var articleId = $el.attr("id");
-			var $dt = $("<dt><a href=\"#"+articleId +"\">"+sectionTitle+"</a></dt>");
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-			});
-			
-			$nav.append($dt);
-			
-			var $subtitles = $el.find("h2");
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-			
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-		prettyPrint();			
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-li.L8 {
-  list-style-type: none;
-}
-/* Alternate shading for lines */
-@media print {
-  pre .str {
-    color: #060;
-  }
-  pre .kwd {
-    color: #006;
-    font-weight: bold;
-  }
-  pre .com {
-    color: #600;
-    font-style: italic;
-  }
-  pre .typ {
-    color: #404;
-    font-weight: bold;
-  }
-  pre .lit {
-    color: #044;
-  }
-  pre .pun {
-    color: #440;
-  }
-  pre .pln {
-    color: #000;
-  }
-  pre .tag {
-    color: #006;
-    font-weight: bold;
-  }
-  pre .atn {
-    color: #404;
-  }
-  pre .atv {
-    color: #060;
-  }
-}
-* {
-  padding: 0;
-  margin: 0;
-  box-sizing: border-box;
-  -moz-box-sizing: border-box;
-  -webkit-box-sizing: border-box;
-  color: inherit;
-  text-rendering: optimizeLegibility;
-}
-body {
-  color: #282b36;
-  min-width: 768px;
-}
-.redBorder,
-.greenBorder,
-.yellowBorder {
-  border-top: 8px solid #282b36;
-  width: 33.33%;
-  float: left;
-  height: 16px;
-  position: relative;
-  z-index: 50;
-}
-.redBorder {
-  background-color: #f33e6f;
-}
-.greenBorder {
-  background-color: #46bfbd;
-}
-.yellowBorder {
-  background-color: #fdb45c;
-}
-h1 {
-  font-family: "proxima-nova";
-  font-weight: 600;
-  font-size: 32px;
-}
-h2 {
-  font-family: "proxima-nova";
-  font-weight: 600;
-  font-size: 22px;
-  line-height: 40px;
-}
-#mainHeader {
-  font-size: 55px;
-}
-#introText {
-  font-weight: 400;
-  margin-top: 20px;
-  font-size: 26px;
-  line-height: 40px;
-  margin-bottom: 40px;
-}
-#wrapper {
-  margin: 0 auto;
-  position: relative;
-  min-width: 768px;
-}
-#wrapper nav {
-  width: 20%;
-  padding-right: 20px;
-  position: fixed;
-  height: 100%;
-  overflow-y: scroll;
-  top: 0;
-  z-index: 0;
-  padding: 40px 20px;
-  font-family: "proxima-nova";
-  background-color: #ebebeb;
-}
-#wrapper nav dl {
-  color: #767c8d;
-}
-#wrapper nav dl dt {
-  list-style: none;
-  margin-top: 10px;
-  margin-bottom: 5px;
-}
-#wrapper nav dl dt a {
-  display: block;
-  padding: 2px 0;
-  border-bottom: 1px solid rgba(118, 124, 141, 0.2);
-  text-decoration: none;
-}
-#wrapper nav dl dd {
-  margin-bottom: 5px;
-  padding-left: 5px;
-}
-#wrapper nav dl dd:before {
-  content: "- ";
-}
-#wrapper nav dl dd a {
-  text-decoration: none;
-  font-size: 12px;
-  border-bottom: 1px solid transparent;
-}
-#wrapper nav dl a {
-  -webkit-transition: all 200ms ease-in-out;
-  -moz-transition: all 200ms ease-in-out;
-  -o-transition: all 200ms ease-in-out;
-  -ms-transition: all 200ms ease-in-out;
-  transition: all 200ms ease-in-out;
-}
-#wrapper nav dl a:hover {
-  color: #2d91ea;
-  border-bottom-color: #2d91ea;
-}
-#wrapper #contentWrapper {
-  width: 80%;
-  max-width: 1080px;
-  margin-left: 20%;
-  padding: 0px 40px;
-  padding-top: 72px;
-}
-article {
-  border-top: 1px solid #ebebeb;
-  padding: 40px 0;
-}
-article h2 {
-  margin-top: 20px;
-}
-p,
-ul li {
-  font-family: "proxima-nova";
-  line-height: 20px;
-  font-size: 16px;
-  margin-top: 10px;
-  color: #767c8d;
-}
-p a,
-ul li a {
-  text-decoration: none;
-  border-bottom: 1px solid #2d91ea;
-  color: #2d91ea;
-}
-canvas {
-  margin-top: 20px;
-}
-pre {
-  background-color: #292b36;
-  padding: 10px;
-  border-radius: 5px;
-  position: relative;
-  -webkit-font-smoothing: antialiased;
-  margin: 40px 0 20px 0;
-}
-pre code {
-  display: block;
-}
-pre:before {
-  content: attr(data-type);
-  position: absolute;
-  font-size: 12px;
-  top: -30px;
-  left: 0;
-  font-family: "proxima-nova";
-  font-weight: 400;
-  display: inline-block;
-  padding: 2px 5px;
-  border-radius: 5px;
-  background-color: #ebebeb;
-}

docs/styles.less

@@ -1,185 +0,0 @@
-@import "prettify";
-
-@codeBackground : #292B36;
-
-@primaryFont : "proxima-nova";
-
-@textColour : #282B36;
-@secondaryTextColour : #767c8d;
-
-@borderPaleColour : #EBEBEB;
-@pageBorderColour : @textColour;
-
-@red : #F33E6F;
-@green : #46BFBD;
-@yellow : #FDB45C;
-@blue : #2D91EA;
-
-*{
-padding:0;
-margin:0;
-box-sizing:border-box;
--moz-box-sizing:border-box;
--webkit-box-sizing:border-box;
-color:inherit;
-text-rendering: optimizeLegibility;
-}
-
-body{
-	color: @textColour;
-	min-width: 768px;
-}
-
-.redBorder,.greenBorder,.yellowBorder{
-	border-top: 8px solid @pageBorderColour;
-	width: 33.33%;
-	float: left;
-	height: 16px;
-	position: relative;
-	z-index:50;
-}
-.redBorder{
-	background-color: @red;
-}
-.greenBorder{
-	background-color: @green;
-}
-.yellowBorder{
-	background-color: @yellow;
-}
-
-h1{
-	font-family: @primaryFont;
-	font-weight: 600;
-	font-size: 32px;
-}
-h2{
-	font-family: @primaryFont;
-	font-weight: 600;
-	font-size: 22px;
-	line-height: 40px;
-}
-#mainHeader{
-	font-size: 55px;
-}
-#introText{
-	font-weight: 400;
-	margin-top: 20px;
-	font-size: 26px;
-	line-height: 40px;
-	margin-bottom: 40px;
-}
-#wrapper{
-	margin: 0 auto;
-	position: relative;
-	min-width: 768px;
-	nav{
-		width: 20%;
-		padding-right: 20px;
-		position: fixed;
-		height: 100%;
-		overflow-y: scroll;
-		top: 0;
-		z-index: 0;
-		padding: 40px 20px;
-		font-family: @primaryFont;
-		background-color: @borderPaleColour;
-
-		dl{
-			color: @secondaryTextColour;
-			dt{
-				list-style: none;
-				margin-top: 10px;
-				margin-bottom: 5px;
-				a{
-					display: block;
-					padding: 2px 0;
-					border-bottom: 1px solid fade(@secondaryTextColour,20%);
-					text-decoration: none;
-				}
-			}
-			dd{
-				margin-bottom: 5px;
-				padding-left: 5px;
-					&:before{
-						content: "- ";
-						
-					}
-				a{
-					text-decoration:none;
-					font-size: 12px;
-					border-bottom: 1px solid transparent;
-				}
-			}
-			a{
-				-webkit-transition: all 200ms ease-in-out;
-				-moz-transition: all 200ms ease-in-out;
-				-o-transition: all 200ms ease-in-out;
-				-ms-transition: all 200ms ease-in-out;
-				transition: all 200ms ease-in-out;	
-				&:hover{
-					color: @blue;
-					border-bottom-color:@blue;
-				}			
-			}
-			
-		}
-	}
-	#contentWrapper{
-		width: 80%;
-		max-width: 1080px;
-		margin-left: 20%;
-		padding: 0px 40px;
-		padding-top: 72px;
-	}
-}
-article{
-	border-top: 1px solid @borderPaleColour;
-	padding: 40px 0;
-	h2{
-		margin-top: 20px;
-	}
-}
-
-p,ul li{
-	font-family: @primaryFont;
-	line-height: 20px;
-	font-size: 16px;
-	margin-top: 10px;
-	color: @secondaryTextColour;
-	a{
-		text-decoration: none;
-		border-bottom: 1px solid @blue;
-		color: @blue;
-	}
-}
-
-canvas{
-	margin-top: 20px;
-}
-pre{
-	background-color: @codeBackground;
-	padding: 10px;
-	border-radius: 5px;
-	position: relative;
-	-webkit-font-smoothing: antialiased;
-	margin: 40px 0 20px 0;
-	code{
-		display: block;
-	}
-	&:before{
-		content: attr(data-type);
-		position: absolute;
-		font-size: 12px;
-		top: -30px;
-		left: 0;
-		font-family: @primaryFont;
-		font-weight: 400;
-		display: inline-block;
-		padding: 2px 5px;
-		border-radius: 5px;
-		background-color: @borderPaleColour;
-	}
-}
-p{
-}

gulpfile.js

@@ -0,0 +1,201 @@
+var gulp = require('gulp'),
+	concat = require('gulp-concat'),
+	uglify = require('gulp-uglify'),
+	util = require('gulp-util'),
+	jshint = require('gulp-jshint'),
+	size = require('gulp-size'),
+	connect = require('gulp-connect'),
+	replace = require('gulp-replace'),
+	htmlv = require('gulp-html-validator'),
+	inquirer = require('inquirer'),
+	semver = require('semver'),
+	exec = require('child_process').exec,
+	fs = require('fs'),
+	package = require('./package.json'),
+	bower = require('./bower.json'),
+	karma = require('gulp-karma');
+
+var srcDir = './src/';
+var testDir = './test/';
+/*
+ *  Usage : gulp build --types=Bar,Line,Doughnut
+ *  Output: - A built Chart.js file with Core and types Bar, Line and Doughnut concatenated together
+ *          - A minified version of this code, in Chart.min.js
+ */
+
+var srcFiles = [
+	'./node_modules/color/dist/color.min.js',
+	'./src/core/core.js',
+	'./src/core/core.helpers.js',
+	'./src/core/core.chart.js',
+	'./src/core/core.element.js',
+	'./src/core/**',
+	'./src/controllers/**',
+	'./src/scales/**',
+	'./src/elements/**',
+	'./src/charts/**',
+];
+
+var testFiles = [
+	'./node_modules/moment/min/moment.min.js',
+	'./test/mockContext.js',
+	'./test/*.js'
+];
+
+gulp.task('build', buildTask);
+gulp.task('coverage', coverageTask);
+gulp.task('watch', watchTask);
+gulp.task('bump', bumpTask);
+gulp.task('release', ['build'], releaseTask);
+gulp.task('jshint', jshintTask);
+gulp.task('test', ['jshint', 'validHTML', 'unittest']);
+gulp.task('size', ['library-size', 'module-sizes']);
+gulp.task('server', serverTask);
+gulp.task('validHTML', validHTMLTask);
+gulp.task('unittest', unittestTask);
+gulp.task('unittestWatch', unittestWatchTask);
+gulp.task('library-size', librarySizeTask);
+gulp.task('module-sizes', moduleSizesTask);
+gulp.task('_open', _openTask);
+gulp.task('dev', ['server', 'default']);
+
+gulp.task('default', ['build', 'watch']);
+
+
+function buildTask() {
+
+	var isCustom = !!(util.env.types),
+		outputDir = (isCustom) ? 'custom' : '.';
+
+	return gulp.src(srcFiles)
+		.pipe(concat('Chart.js'))
+		.pipe(replace('{{ version }}', package.version))
+		.pipe(gulp.dest(outputDir))
+		.pipe(uglify({
+			preserveComments: 'some'
+		}))
+		.pipe(concat('Chart.min.js'))
+		.pipe(gulp.dest(outputDir));
+
+}
+
+/*
+ *  Usage : gulp bump
+ *  Prompts: Version increment to bump
+ *  Output: - New version number written into package.json & bower.json
+ */
+function bumpTask(complete) {
+	util.log('Current version:', util.colors.cyan(package.version));
+	var choices = ['major', 'premajor', 'minor', 'preminor', 'patch', 'prepatch', 'prerelease'].map(function(versionType) {
+		return versionType + ' (v' + semver.inc(package.version, versionType) + ')';
+	});
+	inquirer.prompt({
+		type: 'list',
+		name: 'version',
+		message: 'What version update would you like?',
+		choices: choices
+	}, function(res) {
+		var increment = res.version.split(' ')[0],
+			newVersion = semver.inc(package.version, increment);
+
+		// Set the new versions into the bower/package object
+		package.version = newVersion;
+		bower.version = newVersion;
+
+		// Write these to their own files, then build the output
+		fs.writeFileSync('package.json', JSON.stringify(package, null, 2));
+		fs.writeFileSync('bower.json', JSON.stringify(bower, null, 2));
+
+		complete();
+	});
+}
+
+
+function releaseTask() {
+	exec('git tag -a v' + package.version);
+}
+
+
+function jshintTask() {
+	return gulp.src(srcDir + '*.js')
+		.pipe(jshint())
+		.pipe(jshint.reporter('default'));
+}
+
+
+function validHTMLTask() {
+	return gulp.src('samples/*.html')
+		.pipe(htmlv());
+}
+
+
+function unittestTask() {
+	var files = srcFiles.slice();
+	Array.prototype.push.apply(files, testFiles);
+
+	return gulp.src(files)
+		.pipe(karma({
+			configFile: 'karma.conf.js',
+			action: 'run'
+		}));
+}
+
+function unittestWatchTask() {
+	var files = srcFiles.slice();
+	Array.prototype.push.apply(files, testFiles);
+
+	return gulp.src(files)
+		.pipe(karma({
+			configFile: 'karma.conf.js',
+			action: 'watch'
+		}));
+}
+
+function coverageTask() {
+	var files = srcFiles.slice();
+	Array.prototype.push.apply(files, testFiles);
+
+	return gulp.src(files)
+		.pipe(karma({
+			configFile: 'karma.coverage.conf.js',
+			action: 'run'
+		}));
+}
+
+function librarySizeTask() {
+	return gulp.src('Chart.min.js')
+		.pipe(size({
+			gzip: true
+		}));
+}
+
+function moduleSizesTask() {
+	return gulp.src(srcDir + '*.js')
+		.pipe(uglify({
+			preserveComments: 'some'
+		}))
+		.pipe(size({
+			showFiles: true,
+			gzip: true
+		}));
+}
+
+function watchTask() {
+	if (util.env.test) {
+		return gulp.watch('./src/**', ['build', 'unittest', 'unittestWatch']);
+	}
+	return gulp.watch('./src/**', ['build']);
+}
+
+function serverTask() {
+	connect.server({
+		port: 8000
+	});
+}
+
+// Convenience task for opening the project straight from the command line
+
+function _openTask() {
+	exec('open http://localhost:8000');
+	exec('subl .');
+}

karma.conf.js

@@ -0,0 +1,7 @@
+module.exports = function(config) {
+	config.set({
+		browsers: ['Chrome', 'Firefox'],
+		frameworks: ['jasmine'],
+		reporters: ['progress', 'html'],
+	});
+};

karma.coverage.conf.js

@@ -0,0 +1,18 @@
+module.exports = function(config) {
+	config.set({
+		browsers: ['Chrome', 'Firefox'],
+
+		coverageReporter: {
+			type: 'html',
+			dir: 'coverage/'
+		},
+
+		frameworks: ['jasmine'],
+
+		preprocessors: {
+			'src/**/*.js': ['coverage']
+		},
+		
+		reporters: ['progress', 'coverage'],
+	});
+};

package.json

@@ -0,0 +1,42 @@
+{
+  "name": "chart.js",
+  "homepage": "http://www.chartjs.org",
+  "description": "Simple HTML5 charts using the canvas element.",
+  "version": "2.0.0-alpha",
+  "main": "Chart.js",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/nnnick/Chart.js.git"
+  },
+  "dependences": {},
+  "devDependencies": {
+    "color": "git://github.com/chartjs/color",
+    "gulp": "3.5.x",
+    "gulp-concat": "~2.1.x",
+    "gulp-connect": "~2.0.5",
+    "gulp-html-validator": "^0.0.2",
+    "gulp-jshint": "~1.5.1",
+    "gulp-karma": "0.0.4",
+    "gulp-replace": "^0.4.0",
+    "gulp-size": "~0.4.0",
+    "gulp-uglify": "~0.2.x",
+    "gulp-util": "~2.2.x",
+    "inquirer": "^0.5.1",
+    "jasmine": "^2.3.2",
+    "jasmine-core": "^2.3.4",
+    "jquery": "^2.1.4",
+    "karma": "^0.12.37",
+    "karma-chrome-launcher": "^0.2.0",
+    "karma-coverage": "^0.5.1",
+    "karma-firefox-launcher": "^0.1.6",
+    "karma-jasmine": "^0.3.6",
+    "karma-jasmine-html-reporter": "^0.1.8",
+    "semver": "^3.0.1"
+  },
+  "spm": {
+    "main": "Chart.js"
+  },
+  "dependencies": {
+    "moment": "^2.10.6"
+  }
+}

readme.md

@@ -1,52 +0,0 @@
-Chart.js
-=======
-*Simple HTML5 Charts using the canvas element* [chartjs.org](http://www.chartjs.org)
-
-Quick FYI
--------
-I'm currently working on a big refactor of the library into a more object oriented structure. 
-
-It'll have an extendable class structure for adding community developed chart types. By opening up components into Chart.js into extendable classes, it'll allow for much easier community driven library extensions rather than tacking on new features as required. The refactor will also feature a generisized version of the interaction layer introduced by Regaddi in his tooltips branch - https://github.com/nnnick/Chart.js/pull/51. On top of this, it'll include utility methods on each chart object, for updating, clearing and redrawing charts etc.
-
-I haven't quite got the bandwidth right now to be juggling both issues/requests in master while redesigning all of the core code in Chart.js. By focusing on the refactor, it'll get done WAY quicker.
-
-Extensibility will absolutely be at the core of the refactor, allowing for the development of complex extension modules, but also keeping a lightweight set of core code.
-
-Hang tight - it'll be worth it. 
-
-PS. If you're interested in reviewing some code or trying out writing extensions, shoot me an email.
-
-###Update - 8th September
-Just a quick update on the refactor. 
-
-Just wanted to let you guys know it's making really good progress, and it'll be well worth the wait.
-
-The new version is being broken up into Chart type modules, with each of the current 6 chart types using documented and extendable classes and helper methods from the Chart.js core. This means the community will be able to build new chart types using existing components, or extend existing types to do something a bit different. 
-
-By splitting the different charts into modules will mean the ability to use AMD if appropriate, but I'll also be writing a simple web interface for concatenating chart types into a minified production ready custom build.
-
-The syntax for creating charts **will not change**, so the upgrade should be a drop in replacement, but give you the ability to have a whole new level of interactivity and animated data updates.
-
-Right now I've wrote 80% of the core, and refactored the Doughnut and Pie charts, and I'm a good way through the Line and Bar charts. I hope to have the new version ready to release with some new docs late September/early October.
-
-I know PR and issues are racking up in the repo, and I'll do my best to sort them ASAP, but I think this update is really important for creating flexibility and extensibility to cater for these new features in an elegant way, rather than introducing scope creep into an architecture that wasn't designed to deliver this extra functionality.
-
-Big thanks for all the support - it's been totally overwhelming.
-
-###Another Quick Update - 16th October
-First of all - my apologies, early October has drifted away from me and we're moving towards late October. This last month has been really unexpectedly busy, and I've had a lot of stuff going on, so I haven't quite managed to find as much time to work on Chart.js as I'd hoped.
-
-In terms of an updated ETA, I'm really aiming for a pre-November release, and I'll be having some late nights and a few days off to try my best to make this happen.
-
-Again, really appreciate the support and cheers for your patience for the new version.
-
-
-Documentation
--------
-You can find documentation at [chartjs.org/docs](http://www.chartjs.org/docs).
-
-License
--------
-Chart.js was taken down on the 19th March. It is now back online for good and IS available under MIT license.
-
-Chart.js is available under the [MIT license] (http://opensource.org/licenses/MIT).

samples/bar-multi-axis.html

@@ -0,0 +1,91 @@
+<!doctype html>
+<html>
+
+<head>
+    <title>Bar Chart Multi Axis</title>
+    <script src="../node_modules/jquery/dist/jquery.min.js"></script>
+    <script src="../Chart.js"></script>
+</head>
+
+<body>
+    <div style="width: 50%">
+        <canvas id="canvas" height="450" width="600"></canvas>
+    </div>
+    <button id="randomizeData">Randomize Data</button>
+    <script>
+    var randomScalingFactor = function() {
+        return (Math.random() > 0.5 ? 1.0 : -1.0) * Math.round(Math.random() * 100);
+    };
+    var randomColorFactor = function() {
+        return Math.round(Math.random() * 255);
+    };
+    var randomColor = function() {
+        return 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',.7)';
+    };
+
+    var barChartData = {
+        labels: ["January", "February", "March", "April", "May", "June", "July"],
+        datasets: [{
+            label: 'Dataset 1',
+            backgroundColor: "rgba(220,220,220,0.5)",
+            yAxisID: "y-axis-1",
+            data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
+        }, {
+            label: 'Dataset 2',
+            backgroundColor: "rgba(151,187,205,0.5)",
+            yAxisID: "y-axis-2",
+            data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
+        }, {
+            label: 'Dataset 3',
+            backgroundColor: [randomColor(), randomColor(), randomColor(), randomColor(), randomColor(), randomColor(), randomColor()],
+            yAxisID: "y-axis-1",
+            data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
+        }]
+
+    };
+    window.onload = function() {
+        var ctx = document.getElementById("canvas").getContext("2d");
+        window.myBar = Chart.Bar(ctx, {
+            data: barChartData, 
+            options: {
+                responsive: true,
+                hoverMode: 'label',
+                hoverAnimationDuration: 400,
+                stacked: false,
+                scales: {
+                    yAxes: [{
+                        type: "linear", // only linear but allow scale type registration. This allows extensions to exist solely for log scale for instance
+                        display: true,
+                        position: "left",
+                        id: "y-axis-1",
+                    }, {
+                        type: "linear", // only linear but allow scale type registration. This allows extensions to exist solely for log scale for instance
+                        display: true,
+                        position: "right",
+                        id: "y-axis-2",
+                        gridLines: {
+                            drawOnChartArea: false
+                        }
+                    }],
+                }
+            }
+        });
+    };
+
+    $('#randomizeData').click(function() {
+        $.each(barChartData.datasets, function(i, dataset) {
+            if (Chart.helpers.isArray(dataset.backgroundColor)) {
+                dataset.backgroundColor= [randomColor(), randomColor(), randomColor(), randomColor(), randomColor(), randomColor(), randomColor()];
+            } else {
+                dataset.backgroundColor= randomColor();
+            }
+
+            dataset.data = [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()];
+
+        });
+        window.myBar.update();
+    });
+    </script>
+</body>
+
+</html>

samples/bar-stacked.html

@@ -0,0 +1,70 @@
+<!doctype html>
+<html>
+
+<head>
+    <title>Stacked Bar Chart</title>
+    <script src="../node_modules/jquery/dist/jquery.min.js"></script>
+    <script src="../Chart.js"></script>
+</head>
+
+<body>
+    <div style="width: 50%">
+        <canvas id="canvas" height="450" width="600"></canvas>
+    </div>
+    <button id="randomizeData">Randomize Data</button>
+    <script>
+        var randomScalingFactor = function() {
+            return (Math.random() > 0.5 ? 1.0 : -1.0) * Math.round(Math.random() * 100);
+        };
+        var randomColorFactor = function() {
+            return Math.round(Math.random() * 255);
+        };
+
+        var barChartData = {
+            labels: ["January", "February", "March", "April", "May", "June", "July"],
+            datasets: [{
+                label: 'Dataset 1',
+                backgroundColor: "rgba(220,220,220,0.5)",
+                data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
+            }, {
+                label: 'Dataset 2',
+                backgroundColor: "rgba(151,187,205,0.5)",
+                data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
+            }, {
+                label: 'Dataset 3',
+                backgroundColor: "rgba(151,187,205,0.5)",
+                data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
+            }]
+
+        };
+        window.onload = function() {
+            var ctx = document.getElementById("canvas").getContext("2d");
+            window.myBar = new Chart(ctx, {
+                type: 'bar',
+                data: barChartData,
+                options: {
+                    responsive: true,
+                    scales: {
+                        xAxes: [{
+                            stacked: true,
+                        }],
+                        yAxes: [{
+                            stacked: true
+                        }]
+                    }
+                }
+            });
+        };
+
+        $('#randomizeData').click(function() {
+            $.each(barChartData.datasets, function(i, dataset) {
+                dataset.backgroundColor = 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',.7)';
+                dataset.data = [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()];
+
+            });
+            window.myBar.update();
+        });
+    </script>
+</body>
+
+</html>

samples/bar.html

@@ -1,39 +1,144 @@
 <!doctype html>
 <html>
-	<head>
-		<title>Bar Chart</title>
-		<script src="../Chart.js"></script>
-		<meta name = "viewport" content = "initial-scale = 1, user-scalable = no">
-		<style>
-			canvas{
-			}
-		</style>
-	</head>
-	<body>
-		<canvas id="canvas" height="450" width="600"></canvas>
 
+<head>
+    <title>Bar Chart</title>
+    <script src="../node_modules/jquery/dist/jquery.min.js"></script>
+    <script src="../Chart.js"></script>
+    <style type="text/css">
+        canvas {
+            border: 1px solid red;
+        }
+    </style>
+</head>
 
-	<script>
+<body>
+    <div id="container" style="width: 50%; height: 25%;">
+        <canvas id="canvas" height="450" width="600"></canvas>
+    </div>
+    <button id="randomizeData">Randomize Data</button>
+    <button id="addDataset">Add Dataset</button>
+    <button id="removeDataset">Remove Dataset</button>
+    <button id="addData">Add Data</button>
+    <button id="removeData">Remove Data</button>
+    <button id="show">Show</button>
+    <div>
+        <h3>Legend</h3>
+        <div id="legendContainer">
+        </div>
+    </div>
+    <script>
+        var randomScalingFactor = function() {
+            return (Math.random() > 0.5 ? 1.0 : -1.0) * Math.round(Math.random() * 100);
+        };
+        var randomColorFactor = function() {
+            return Math.round(Math.random() * 255);
+        };
+        var randomColor = function() {
+            return 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',.7)';
+        };
 
-		var barChartData = {
-			labels : ["January","February","March","April","May","June","July"],
-			datasets : [
-				{
-					fillColor : "rgba(220,220,220,0.5)",
-					strokeColor : "rgba(220,220,220,1)",
-					data : [65,59,90,81,56,55,40]
-				},
-				{
-					fillColor : "rgba(151,187,205,0.5)",
-					strokeColor : "rgba(151,187,205,1)",
-					data : [28,48,40,19,96,27,100]
-				}
-			]
-			
-		}
+        var barChartData = {
+            labels: ["January", "February", "March", "April", "May", "June", "July"],
+            datasets: [{
+                label: 'Dataset 1',
+                backgroundColor: "rgba(220,220,220,0.5)",
+                data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
+            }, {
+                label: 'Dataset 2',
+                backgroundColor: "rgba(151,187,205,0.5)",
+                data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
+            }, {
+                label: 'Dataset 3',
+                backgroundColor: "rgba(151,187,205,0.5)",
+                data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
+            }]
+
+        };
+
+        function updateLegend() {
+            $legendContainer = $('#legendContainer');
+            $legendContainer.empty();
+            $legendContainer.append(window.myBar.generateLegend());
+        }
+
+        window.onload = function() {
+            var ctx = document.getElementById("canvas").getContext("2d");
+            window.myBar = new Chart(ctx, {
+                type: 'bar',
+                data: barChartData,
+                options: {
+                    responsive: true,
+                }
+            });
+
+            updateLegend();
+        };
+
+        $('#randomizeData').click(function() {
+            var zero = Math.random() < 0.2 ? true : false;
+            $.each(barChartData.datasets, function(i, dataset) {
+                dataset.backgroundColor = randomColor();
+                dataset.data = dataset.data.map(function() {
+                    return zero ? 0.0 : randomScalingFactor();
+                });
+
+            });
+            window.myBar.update();
+            updateLegend();
+        });
+
+        $('#addDataset').click(function() {
+            var newDataset = {
+                label: 'Dataset ' + barChartData.datasets.length,
+                backgroundColor: randomColor(),
+                data: []
+            };
+
+            for (var index = 0; index < barChartData.labels.length; ++index) {
+                newDataset.data.push(randomScalingFactor());
+            }
+
+            barChartData.datasets.push(newDataset);
+            window.myBar.update();
+            updateLegend();
+        });
+
+        $('#addData').click(function() {
+            if (barChartData.datasets.length > 0) {
+                barChartData.labels.push('data #' + barChartData.labels.length);
+
+                for (var index = 0; index < barChartData.datasets.length; ++index) {
+                    //window.myBar.addData(randomScalingFactor(), index);
+                    barChartData.datasets[index].data.push(randomScalingFactor());
+                }
+
+                window.myBar.update();
+                updateLegend();
+            }
+        });
+
+        $('#removeDataset').click(function() {
+            barChartData.datasets.splice(0, 1);
+            window.myBar.update();
+            updateLegend();
+        });
+
+        $('#removeData').click(function() {
+            barChartData.labels.splice(-1, 1); // remove the label first
+
+            barChartData.datasets.forEach(function(dataset, datasetIndex) {
+                dataset.data.pop();
+            });
+
+            window.myBar.update();
+            updateLegend();
+        });
+
+        $('#show').click(function() {
+            document.getElementById('container').style.display = '';
+        });
+    </script>
+</body>
 
-	var myLine = new Chart(document.getElementById("canvas").getContext("2d")).Bar(barChartData);
-	
-	</script>
-	</body>
 </html>

samples/combo-bar-line.html

@@ -0,0 +1,69 @@
+<!doctype html>
+<html>
+
+<head>
+    <title>Bar Chart</title>
+    <script src="../node_modules/jquery/dist/jquery.min.js"></script>
+    <script src="../Chart.js"></script>
+</head>
+
+<body>
+    <div style="width: 50%">
+        <canvas id="canvas" height="450" width="600"></canvas>
+    </div>
+    <button id="randomizeData">Randomize Data</button>
+    <script>
+        var randomScalingFactor = function() {
+            return (Math.random() > 0.5 ? 1.0 : -1.0) * Math.round(Math.random() * 100);
+        };
+        var randomColorFactor = function() {
+            return Math.round(Math.random() * 255);
+        };
+
+        var barChartData = {
+            labels: ["January", "February", "March", "April", "May", "June", "July"],
+            datasets: [{
+                type: 'bar',
+                label: 'Dataset 1',
+                backgroundColor: "rgba(151,187,205,0.5)",
+                data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
+                borderColor: 'white',
+                borderWidth: 2
+            }, {
+                type: 'bar',
+                label: 'Dataset 2',
+                backgroundColor: "rgba(151,187,205,0.5)",
+                data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
+                borderColor: 'white',
+                borderWidth: 2
+            }, {
+                type: 'line',
+                label: 'Dataset 3',
+                backgroundColor: "rgba(220,220,220,0.5)",
+                data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
+            }, ]
+
+        };
+        window.onload = function() {
+            var ctx = document.getElementById("canvas").getContext("2d");
+            window.myBar = new Chart(ctx, {
+                type: 'bar',
+                data: barChartData,
+                options: {
+                    responsive: true,
+                }
+            });
+        };
+
+        $('#randomizeData').click(function() {
+            $.each(barChartData.datasets, function(i, dataset) {
+                dataset.backgroundColor = 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',.7)';
+                dataset.data = [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()];
+
+            });
+            window.myBar.update();
+        });
+    </script>
+</body>
+
+</html>

samples/combo-time-scale.html

@@ -0,0 +1,191 @@
+<!doctype html>
+<html>
+
+<head>
+    <title>Line Chart</title>
+    <script src="../node_modules/moment/min/moment.min.js"></script>
+    <script src="../Chart.js"></script>
+    <script src="../node_modules/jquery/dist/jquery.min.js"></script>
+    <style>
+        canvas {
+            -webkit-box-shadow: 0 0 20px 0 rgba(0, 0, 0, .5);
+        }
+    </style>
+</head>
+
+<body>
+    <div style="width:100%;">
+        <canvas id="canvas" style="width:100%;height:100%"></canvas>
+    </div>
+    <br>
+    <br>
+    <button id="randomizeData">Randomize Data</button>
+    <button id="addDataset">Add Dataset</button>
+    <button id="removeDataset">Remove Dataset</button>
+    <button id="addData">Add Data</button>
+    <button id="removeData">Remove Data</button>
+    <div>
+        <h3>Legend</h3>
+        <div id="legendContainer">
+        </div>
+    </div>
+    <script>
+        var randomScalingFactor = function() {
+            return Math.round(Math.random() * 100 * (Math.random() > 0.5 ? -1 : 1));
+        };
+        var randomColorFactor = function() {
+            return Math.round(Math.random() * 255);
+        };
+        var randomColor = function(opacity) {
+            return 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',' + (opacity || '.3') + ')';
+        };
+        var newDate = function(days) {
+            var date = new Date();
+            return date.setDate(date.getDate() + days);
+        };
+        var newTimestamp = function(days) {
+            return Date.now() - days * 100000;
+        };
+
+        var config = {
+            type: 'bar',
+            data: {
+                //labels: [newTimestamp(0), newTimestamp(1), newTimestamp(2), newTimestamp(3), newTimestamp(4), newTimestamp(5), newTimestamp(6)], // unix timestamps
+                // labels: [newDate(0), newDate(1), newDate(2), newDate(3), newDate(4), newDate(5), newDate(6)], // Date Objects
+                labels: ["01/01/2015 20:00", "01/02/2015 20:00", "01/03/2015 22:00", "01/05/2015 23:00", "01/07/2015 03:00", "01/08/2015 10:00", "01/10/2015"], // Hours
+                // labels: ["01/01/2015", "01/02/2015", "01/03/2015", "01/06/2015", "01/15/2015", "01/17/2015", "01/30/2015"], // Days
+                // labels: ["12/25/2014", "01/08/2015", "01/15/2015", "01/22/2015", "01/29/2015", "02/05/2015", "02/12/2015"], // Weeks
+                datasets: [{
+                    type: 'bar',
+                    label: 'Dataset 1',
+                    backgroundColor: "rgba(151,187,205,0.5)",
+                    data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
+                    borderColor: 'white',
+                    borderWidth: 2
+                }, {
+                    type: 'bar',
+                    label: 'Dataset 2',
+                    backgroundColor: "rgba(151,187,205,0.5)",
+                    data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
+                    borderColor: 'white',
+                    borderWidth: 2
+                }, {
+                    type: 'line',
+                    label: 'Dataset 3',
+                    backgroundColor: "rgba(220,220,220,0.5)",
+                    data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
+                }, ]
+            },
+            options: {
+                responsive: true,
+                scales: {
+                    xAxes: [{
+                        type: "time",
+                        display: true,
+                        time: {
+                            format: 'MM/DD/YYYY HH:mm',
+                            // round: 'day'
+                        }
+                    }, ],
+                    yAxes: [{
+                        display: true
+                    }]
+                },
+                elements: {
+                    line: {
+                        tension: 0.3
+                    }
+                },
+            }
+        };
+
+        $.each(config.data.datasets, function(i, dataset) {
+            dataset.borderColor = randomColor(0.4);
+            dataset.backgroundColor = randomColor(0.5);
+            dataset.pointBorderColor = randomColor(0.7);
+            dataset.pointBackgroundColor = randomColor(0.5);
+            dataset.pointBorderWidth = 1;
+        });
+
+        console.log(config.data);
+
+        window.onload = function() {
+            var ctx = document.getElementById("canvas").getContext("2d");
+            window.myLine = new Chart(ctx, config);
+
+            updateLegend();
+        };
+
+        function updateLegend() {
+            $legendContainer = $('#legendContainer');
+            $legendContainer.empty();
+            $legendContainer.append(window.myLine.generateLegend());
+        }
+
+        $('#randomizeData').click(function() {
+            $.each(config.data.datasets, function(i, dataset) {
+                dataset.data = dataset.data.map(function() {
+                    return randomScalingFactor();
+                });
+            });
+
+            window.myLine.update();
+            updateLegend();
+        });
+
+        $('#addDataset').click(function() {
+            var newDataset = {
+                label: 'Dataset ' + config.data.datasets.length,
+                borderColor: randomColor(0.4),
+                backgroundColor: randomColor(0.5),
+                pointBorderColor: randomColor(0.7),
+                pointBackgroundColor: randomColor(0.5),
+                pointBorderWidth: 1,
+                data: [],
+            };
+
+            for (var index = 0; index < config.data.labels.length; ++index) {
+                newDataset.data.push(randomScalingFactor());
+            }
+
+            config.data.datasets.push(newDataset);
+            window.myLine.update();
+            updateLegend();
+        });
+
+        $('#addData').click(function() {
+            if (config.data.datasets.length > 0) {
+                config.data.labels.push(
+                    myLine.scales['x-axis-0'].labelMoments[myLine.scales['x-axis-0'].labelMoments.length - 1].add(1, 'day')
+                    .format('MM/DD/YYYY')
+                );
+
+                for (var index = 0; index < config.data.datasets.length; ++index) {
+                    config.data.datasets[index].data.push(randomScalingFactor());
+                }
+
+                window.myLine.update();
+                updateLegend();
+            }
+        });
+
+        $('#removeDataset').click(function() {
+            config.data.datasets.splice(0, 1);
+            window.myLine.update();
+            updateLegend();
+        });
+
+        $('#removeData').click(function() {
+            config.data.labels.splice(-1, 1); // remove the label first
+
+            config.data.datasets.forEach(function(dataset, datasetIndex) {
+                config.data.datasets[datasetIndex].data.pop();
+            });
+
+            window.myLine.update();
+            updateLegend();
+        });
+    </script>
+</body>
+
+</html>

samples/doughnut.html

@@ -1,46 +1,186 @@
 <!doctype html>
 <html>
-	<head>
-		<title>Doughnut Chart</title>
-		<script src="../Chart.js"></script>
-		<meta name = "viewport" content = "initial-scale = 1, user-scalable = no">
-		<style>
-			canvas{
-			}
-		</style>
-	</head>
-	<body>
-		<canvas id="canvas" height="450" width="450"></canvas>
 
+<head>
+    <title>Doughnut Chart</title>
+    <script src="../Chart.js"></script>
+    <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
+    <style>
+    body {
+        padding: 0;
+        margin: 0;
+    }
+    
+    #canvas-holder {
+        width: 30%;
+    }
+    </style>
+</head>
 
-	<script>
+<body>
+    <div id="canvas-holder" style="width:50%">
+        <canvas id="chart-area" width="500" height="500" />
+    </div>
+    <button id="randomizeData">Randomize Data</button>
+    <button id="addDataset">Add Dataset</button>
+    <button id="removeDataset">Remove Dataset</button>
+    <button id="addData">Add Data</button>
+    <button id="removeData">Remove Data</button>
+    <div>
+        <h3>Legend</h3>
+        <div id="legendContainer">
+            
+        </div>
+    </div>
+    <script>
+    var randomScalingFactor = function() {
+        return Math.round(Math.random() * 100);
+    };
+    var randomColorFactor = function() {
+        return Math.round(Math.random() * 255);
+    };
+    var randomColor = function(opacity) {
+        return 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',' + (opacity || '.3') + ')';
+    };
 
-		var doughnutData = [
-				{
-					value: 30,
-					color:"#F7464A"
-				},
-				{
-					value : 50,
-					color : "#46BFBD"
-				},
-				{
-					value : 100,
-					color : "#FDB45C"
-				},
-				{
-					value : 40,
-					color : "#949FB1"
-				},
-				{
-					value : 120,
-					color : "#4D5360"
-				}
-			
-			];
+    var config = {
+        data: {
+            datasets: [{
+                data: [
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                ],
+                backgroundColor: [
+                    "#F7464A",
+                    "#46BFBD",
+                    "#FDB45C",
+                    "#949FB1",
+                    "#4D5360",
+                ],
+            }, {
+                data: [
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                ],
+                backgroundColor: [
+                    "#F7464A",
+                    "#46BFBD",
+                    "#FDB45C",
+                    "#949FB1",
+                    "#4D5360",
+                ],
+            }, {
+                data: [
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                ],
+                backgroundColor: [
+                    "#F7464A",
+                    "#46BFBD",
+                    "#FDB45C",
+                    "#949FB1",
+                    "#4D5360",
+                ],
+            }],
+            labels: [
+                "Red",
+                "Green",
+                "Yellow",
+                "Grey",
+                "Dark Grey"
+            ]
+        },
+        options: {
+            responsive: true
+        }
+    };
+
+    function updateLegend() {
+        $legendContainer = $('#legendContainer');
+        $legendContainer.empty();
+        $legendContainer.append(window.myDoughnut.generateLegend());
+    }
+
+    window.onload = function() {
+        var ctx = document.getElementById("chart-area").getContext("2d");
+        window.myDoughnut = Chart.Doughnut(ctx, config);
+        console.log(window.myDoughnut);
+
+        updateLegend();
+    };
+
+    $('#randomizeData').click(function() {
+        $.each(config.data.datasets, function(i, dataset) {
+            dataset.data = dataset.data.map(function() {
+                return randomScalingFactor();
+            });
+
+            dataset.backgroundColor = dataset.backgroundColor.map(function() {
+                return randomColor(0.7);
+            });
+        });
+
+        window.myDoughnut.update();
+        updateLegend();
+    });
+
+    $('#addDataset').click(function() {
+        var newDataset = {
+            backgroundColor: [],
+            data: [],
+        };
+
+        for (var index = 0; index < config.data.labels.length; ++index) {
+            newDataset.data.push(randomScalingFactor());
+            newDataset.backgroundColor.push(randomColor(0.7));
+        }
+
+        config.data.datasets.push(newDataset);
+        window.myDoughnut.update();
+        updateLegend();
+    });
+
+    $('#addData').click(function() {
+        if (config.data.datasets.length > 0) {
+            config.data.labels.push('data #' + config.data.labels.length);
+
+            $.each(config.data.datasets, function(index, dataset) {
+                dataset.data.push(randomScalingFactor());
+                dataset.backgroundColor.push(randomColor(0.7));
+            });
+
+            window.myDoughnut.update();
+            updateLegend();
+        }
+    });
+
+    $('#removeDataset').click(function() {
+        config.data.datasets.splice(0, 1);
+        window.myDoughnut.update();
+        updateLegend();
+    });
+
+    $('#removeData').click(function() {
+        config.data.labels.splice(-1, 1); // remove the label first
+
+        config.data.datasets.forEach(function(dataset, datasetIndex) {
+            dataset.data.pop();
+            dataset.backgroundColor.pop();
+        });
+
+        window.myDoughnut.update();
+        updateLegend();
+    });
+    </script>
+</body>
 
-	var myDoughnut = new Chart(document.getElementById("canvas").getContext("2d")).Doughnut(doughnutData);
-	
-	</script>
-	</body>
 </html>

samples/line-customTooltips.html

@@ -0,0 +1,150 @@
+<!doctype html>
+<html>
+
+<head>
+    <title>Line Chart with Custom Tooltips</title>
+    <script src="../Chart.js"></script>
+    <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
+    <style>
+    #canvas-holder1 {
+        width: 300px;
+        margin: 20px auto;
+    }
+    
+    #canvas-holder2 {
+        width: 50%;
+        margin: 20px 25%;
+    }
+    
+    #chartjs-tooltip {
+        opacity: 1;
+        position: absolute;
+        background: rgba(0, 0, 0, .7);
+        color: white;
+        border-radius: 3px;
+        -webkit-transition: all .1s ease;
+        transition: all .1s ease;
+        pointer-events: none;
+        -webkit-transform: translate(-50%, 0);
+        transform: translate(-50%, 0);
+    }
+    
+    .chartjs-tooltip-key {
+        display: inline-block;
+        width: 10px;
+        height: 10px;
+    }
+    </style>
+</head>
+
+<body>
+    <div id="canvas-holder1">
+        <canvas id="chart1" width="300" height="30" />
+    </div>
+    <script>
+    Chart.defaults.global.pointHitDetectionRadius = 1;
+    var customTooltips = function(tooltip) {
+
+        console.log(tooltip._view);
+
+        // Tooltip Element
+        var tooltipEl = $('#chartjs-tooltip');
+
+        if (!tooltipEl[0]) {
+            $('body').append('<div id="chartjs-tooltip"></div>');
+            tooltipEl = $('#chartjs-tooltip');
+        }
+
+        // Hide if no tooltip
+        if (!tooltip._view.opacity) {
+            tooltipEl.css({
+                opacity: 0
+            });
+            $('.chartjs-wrap canvas')
+                .each(function(index, el) {
+                    $(el).css('cursor', 'default');
+                });
+            return;
+        }
+
+        $(tooltip._chart.canvas).css('cursor', 'pointer');
+
+        // Set caret Position
+        tooltipEl.removeClass('above below no-transform');
+        if (tooltip._view.yAlign) {
+            tooltipEl.addClass(tooltip._view.yAlign);
+        } else {
+            tooltipEl.addClass('no-transform');
+        }
+
+        // Set Text
+        if (tooltip._view.text) {
+            tooltipEl.html(tooltip._view.text);
+        } else if (tooltip._view.labels) {
+            var innerHtml = '<div class="title">' + tooltip._view.title + '</div>';
+            for (var i = 0; i < tooltip._view.labels.length; i++) {
+                innerHtml += [
+                    '<div class="section">',
+                    '   <span class="key" style="background-color:' + tooltip._view.legendColors[i].fill + '"></span>',
+                    '   <span class="value">' + tooltip._view.labels[i] + '</span>',
+                    '</div>'
+                ].join('');
+            }
+            tooltipEl.html(innerHtml);
+        }
+
+        // Find Y Location on page
+        var top = 0;
+        if (tooltip._view.yAlign) {
+            if (tooltip._view.yAlign == 'above') {
+                top = tooltip._view.y - tooltip._view.caretHeight - tooltip._view.caretPadding;
+            } else {
+                top = tooltip._view.y + tooltip._view.caretHeight + tooltip._view.caretPadding;
+            }
+        }
+
+        var offset = $(tooltip._chart.canvas).offset();
+
+        // Display, position, and set styles for font
+        tooltipEl.css({
+            opacity: 1,
+            width: tooltip._view.width ? (tooltip._view.width + 'px') : 'auto',
+            left: offset.left + tooltip._view.x + 'px',
+            top: offset.top + top + 'px',
+            fontFamily: tooltip._view._fontFamily,
+            fontSize: tooltip._view.fontSize,
+            fontStyle: tooltip._view._fontStyle,
+            padding: tooltip._view.yPadding + 'px ' + tooltip._view.xPadding + 'px',
+        });
+    };
+    var randomScalingFactor = function() {
+        return Math.round(Math.random() * 100);
+    };
+    var lineChartData = {
+        labels: ["January", "February", "March", "April", "May", "June", "July"],
+        datasets: [{
+            label: "My First dataset",
+            data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
+        }, {
+            label: "My Second dataset",
+            data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
+        }]
+    };
+
+    window.onload = function() {
+        var chartEl = document.getElementById("chart1");
+        window.myLine = new Chart(chartEl, {
+            type: 'line',
+            data: lineChartData,
+            options: {
+                tooltips: {
+                    enabled: false,
+                    custom: customTooltips
+                }
+            }
+        });
+    };
+    </script>
+</body>
+
+</html>

samples/line-logarithmic.html

@@ -0,0 +1,166 @@
+<!doctype html>
+<html>
+
+<head>
+    <title>Line Chart</title>
+    <script src="../Chart.js"></script>
+    <script src="../node_modules/jquery/dist/jquery.min.js"></script>
+    <style>
+    canvas {
+        -webkit-box-shadow: 0 0 20px 0 rgba(0, 0, 0, .5);
+    }
+    </style>
+</head>
+
+<body>
+    <div style="width:50%;">
+        <canvas id="canvas" style="width:100%;height:100%"></canvas>
+    </div>
+    <br>
+    <br>
+    <button id="randomizeData">Randomize Data</button>
+    <button id="addDataset">Add Dataset</button>
+    <button id="removeDataset">Remove Dataset</button>
+    <button id="addData">Add Data</button>
+    <button id="removeData">Remove Data</button>
+    <div>
+        <h3>Legend</h3>
+        <div id="legendContainer">
+            
+        </div>
+    </div>
+    <script>
+    var randomScalingFactor = function() {
+        return Math.ceil(Math.random() * 10.0) * Math.pow(10, Math.ceil(Math.random() * 5));
+    };
+    var randomColorFactor = function() {
+        return Math.round(Math.random() * 255);
+    };
+    var randomColor = function(opacity) {
+        return 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',' + (opacity || '.3') + ')';
+    };
+
+    var config = {
+        type: 'line',
+        data: {
+            labels: ["January", "February", "March", "April", "May", "June", "July"],
+            datasets: [{
+                label: "My First dataset",
+                data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
+                fill: false,
+                borderDash: [5, 5],
+            }, {
+                label: "My Second dataset",
+                data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
+            }]
+        },
+        options: {
+            responsive: true,
+            scales: {
+                xAxes: [{
+                    display: true,
+                    scaleLabel: {
+                        show: true,
+                        labelString: 'x axis'
+                    }
+                }],
+                yAxes: [{
+                    display: true,
+                    type: 'logarithmic',
+                    scaleLabel: {
+                        show: true,
+                        labelString: 'y axis'
+                    }
+                }]
+            }
+        }
+    };
+
+    $.each(config.data.datasets, function(i, dataset) {
+        dataset.borderColor = randomColor(0.4);
+        dataset.backgroundColor = randomColor(0.5);
+        dataset.pointBorderColor = randomColor(0.7);
+        dataset.pointBackgroundColor = randomColor(0.5);
+        dataset.pointBorderWidth = 1;
+    });
+
+    console.log(config.data);
+
+    window.onload = function() {
+        var ctx = document.getElementById("canvas").getContext("2d");
+        window.myLine = new Chart(ctx, config);
+
+        updateLegend();
+    };
+
+    function updateLegend() {
+        $legendContainer = $('#legendContainer');
+        $legendContainer.empty();
+        $legendContainer.append(window.myLine.generateLegend());
+    }
+
+    $('#randomizeData').click(function() {
+        $.each(config.data.datasets, function(i, dataset) {
+            dataset.data = dataset.data.map(function() {
+                return randomScalingFactor();
+            });
+
+        });
+
+        window.myLine.update();
+        updateLegend();
+    });
+
+    $('#addDataset').click(function() {
+        var newDataset = {
+            label: 'Dataset ' + config.data.datasets.length,
+            borderColor: randomColor(0.4),
+            backgroundColor: randomColor(0.5),
+            pointBorderColor: randomColor(0.7),
+            pointBackgroundColor: randomColor(0.5),
+            pointBorderWidth: 1,
+            data: [],
+        };
+
+        for (var index = 0; index < config.data.labels.length; ++index) {
+            newDataset.data.push(randomScalingFactor());
+        }
+
+        config.data.datasets.push(newDataset);
+        window.myLine.update();
+        updateLegend();
+    });
+
+    $('#addData').click(function() {
+        if (config.data.datasets.length > 0) {
+            config.data.labels.push('dataset #' + config.data.labels.length);
+
+            for (var index = 0; index < config.data.datasets.length; ++index) {
+                config.data.datasets[index].data.push(randomScalingFactor());
+            }
+
+            window.myLine.update();
+            updateLegend();
+        }
+    });
+
+    $('#removeDataset').click(function() {
+        config.data.datasets.splice(0, 1);
+        window.myLine.update();
+        updateLegend();
+    });
+
+    $('#removeData').click(function() {
+        config.data.labels.splice(-1, 1); // remove the label first
+
+        config.data.datasets.forEach(function(dataset, datasetIndex) {
+            dataset.data.pop();
+        });
+
+        window.myLine.update();
+        updateLegend();
+    });
+    </script>
+</body>
+
+</html>

samples/line-multi-axis.html

@@ -0,0 +1,92 @@
+<!doctype html>
+<html>
+
+<head>
+    <title>Line Chart Multiple Axes</title>
+    <script src="../Chart.js"></script>
+    <script src="../node_modules/jquery/dist/jquery.min.js"></script>
+</head>
+
+<body>
+    <div style="width:50%;">
+        <canvas id="canvas" style="width:100%;height:100%"></canvas>
+    </div>
+    <button id="randomizeData">Randomize Data</button>
+    <script>
+    var randomScalingFactor = function() {
+        return Math.round(Math.random() * 100 * (Math.random() > 0.5 ? -1 : 1));
+    };
+    var randomColor = function(opacity) {
+        return 'rgba(' + Math.round(Math.random() * 255) + ',' + Math.round(Math.random() * 255) + ',' + Math.round(Math.random() * 255) + ',' + (opacity || '.3') + ')';
+    };
+
+    var lineChartData = {
+        labels: ["January", "February", "March", "April", "May", "June", "July"],
+        datasets: [{
+            label: "My First dataset",
+            data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
+            yAxisID: "y-axis-1",
+        }, {
+            label: "My Second dataset",
+            data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
+            yAxisID: "y-axis-2"
+        }]
+    };
+
+    $.each(lineChartData.datasets, function(i, dataset) {
+        dataset.borderColor = randomColor(0.4);
+        dataset.backgroundColor = randomColor(1);
+        dataset.pointBorderColor = randomColor(0.7);
+        dataset.pointBackgroundColor = randomColor(0.5);
+        dataset.pointBorderWidth = 1;
+    });
+
+    console.log(lineChartData);
+
+    window.onload = function() {
+        var ctx = document.getElementById("canvas").getContext("2d");
+        window.myLine = Chart.Line(ctx, {
+            data: lineChartData,
+            options: {
+                responsive: true,
+                hoverMode: 'label',
+                stacked: false,
+                scales: {
+                    xAxes: [{
+                        display: true,
+                        gridLines: {
+                            offsetGridLines: false
+                        }
+                    }],
+                    yAxes: [{
+                        type: "linear", // only linear but allow scale type registration. This allows extensions to exist solely for log scale for instance
+                        display: true,
+                        position: "left",
+                        id: "y-axis-1",
+                    }, {
+                        type: "linear", // only linear but allow scale type registration. This allows extensions to exist solely for log scale for instance
+                        display: true,
+                        position: "right",
+                        id: "y-axis-2",
+
+                        // grid line settings
+                        gridLines: {
+                            drawOnChartArea: false, // only want the grid lines for one axis to show up
+                        },
+                    }],
+                }
+            }
+        });
+    };
+
+    $('#randomizeData').click(function() {
+        lineChartData.datasets[0].data = [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()];
+
+        lineChartData.datasets[1].data = [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()];
+
+        window.myLine.update();
+    });
+    </script>
+</body>
+
+</html>

samples/line-time-scale.html

@@ -0,0 +1,190 @@
+<!doctype html>
+<html>
+
+<head>
+    <title>Line Chart</title>
+    <script src="../node_modules/moment/min/moment.min.js"></script>
+    <script src="../Chart.js"></script>
+    <script src="../node_modules/jquery/dist/jquery.min.js"></script>
+    <style>
+        canvas {
+            -webkit-box-shadow: 0 0 20px 0 rgba(0, 0, 0, .5);
+        }
+    </style>
+</head>
+
+<body>
+    <div style="width:100%;">
+        <canvas id="canvas" style="width:100%;height:100%"></canvas>
+    </div>
+    <br>
+    <br>
+    <button id="randomizeData">Randomize Data</button>
+    <button id="addDataset">Add Dataset</button>
+    <button id="removeDataset">Remove Dataset</button>
+    <button id="addData">Add Data</button>
+    <button id="removeData">Remove Data</button>
+    <div>
+        <h3>Legend</h3>
+        <div id="legendContainer">
+        </div>
+    </div>
+    <script>
+        var randomScalingFactor = function() {
+            return Math.round(Math.random() * 100 * (Math.random() > 0.5 ? -1 : 1));
+        };
+        var randomColorFactor = function() {
+            return Math.round(Math.random() * 255);
+        };
+        var randomColor = function(opacity) {
+            return 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',' + (opacity || '.3') + ')';
+        };
+        var newDate = function(days) {
+            var date = new Date();
+            return date.setDate(date.getDate() + days);
+        };
+        var newTimestamp = function(days) {
+            return Date.now() - days * 100000;
+        };
+
+        var config = {
+            type: 'line',
+            data: {
+                //labels: [newTimestamp(0), newTimestamp(1), newTimestamp(2), newTimestamp(3), newTimestamp(4), newTimestamp(5), newTimestamp(6)], // unix timestamps
+                // labels: [newDate(0), newDate(1), newDate(2), newDate(3), newDate(4), newDate(5), newDate(6)], // Date Objects
+                labels: ["01/01/2015 20:00", "01/02/2015 21:00", "01/03/2015 22:00", "01/05/2015 23:00", "01/07/2015 03:00", "01/08/2015 10:00", "01/10/2015"], // Hours
+                // labels: ["01/01/2015", "01/02/2015", "01/03/2015", "01/06/2015", "01/15/2015", "01/17/2015", "01/30/2015"], // Days
+                // labels: ["12/25/2014", "01/08/2015", "01/15/2015", "01/22/2015", "01/29/2015", "02/05/2015", "02/12/2015"], // Weeks
+                datasets: [{
+                    label: "My First dataset",
+                    data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
+                    fill: false,
+                    borderDash: [5, 5],
+                }, {
+                    label: "My Second dataset",
+                    data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
+                }]
+            },
+            options: {
+                responsive: true,
+                scales: {
+                    xAxes: [{
+                        type: "time",
+                        display: true,
+                        time: {
+                            format: 'MM/DD/YYYY HH:mm',
+                            // round: 'day'
+                        },
+                        scaleLabel: {
+                            show: true,
+                            labelString: 'Date'
+                        }
+                    }, ],
+                    yAxes: [{
+                        display: true,
+                        scaleLabel: {
+                            show: true,
+                            labelString: 'value'
+                        }
+                    }]
+                },
+                elements: {
+                    line: {
+                        tension: 0.3
+                    }
+                },
+            }
+        };
+
+        $.each(config.data.datasets, function(i, dataset) {
+            dataset.borderColor = randomColor(0.4);
+            dataset.backgroundColor = randomColor(0.5);
+            dataset.pointBorderColor = randomColor(0.7);
+            dataset.pointBackgroundColor = randomColor(0.5);
+            dataset.pointBorderWidth = 1;
+        });
+
+        console.log(config.data);
+
+        window.onload = function() {
+            var ctx = document.getElementById("canvas").getContext("2d");
+            window.myLine = new Chart(ctx, config);
+
+            updateLegend();
+        };
+
+        function updateLegend() {
+            $legendContainer = $('#legendContainer');
+            $legendContainer.empty();
+            $legendContainer.append(window.myLine.generateLegend());
+        }
+
+        $('#randomizeData').click(function() {
+            $.each(config.data.datasets, function(i, dataset) {
+                dataset.data = dataset.data.map(function() {
+                    return randomScalingFactor();
+                });
+            });
+
+            window.myLine.update();
+            updateLegend();
+        });
+
+        $('#addDataset').click(function() {
+            var newDataset = {
+                label: 'Dataset ' + config.data.datasets.length,
+                borderColor: randomColor(0.4),
+                backgroundColor: randomColor(0.5),
+                pointBorderColor: randomColor(0.7),
+                pointBackgroundColor: randomColor(0.5),
+                pointBorderWidth: 1,
+                data: [],
+            };
+
+            for (var index = 0; index < config.data.labels.length; ++index) {
+                newDataset.data.push(randomScalingFactor());
+            }
+
+            config.data.datasets.push(newDataset);
+            window.myLine.update();
+            updateLegend();
+        });
+
+        $('#addData').click(function() {
+            if (config.data.datasets.length > 0) {
+                config.data.labels.push(
+                    myLine.scales['x-axis-0'].labelMoments[myLine.scales['x-axis-0'].labelMoments.length - 1]
+                    .clone()
+                    .add(1, 'day')
+                    .format('MM/DD/YYYY HH:mm')
+                );
+
+                for (var index = 0; index < config.data.datasets.length; ++index) {
+                    config.data.datasets[index].data.push(randomScalingFactor());
+                }
+
+                window.myLine.update();
+                updateLegend();
+            }
+        });
+
+        $('#removeDataset').click(function() {
+            config.data.datasets.splice(0, 1);
+            window.myLine.update();
+            updateLegend();
+        });
+
+        $('#removeData').click(function() {
+            config.data.labels.splice(-1, 1); // remove the label first
+
+            config.data.datasets.forEach(function(dataset, datasetIndex) {
+                dataset.data.pop();
+            });
+
+            window.myLine.update();
+            updateLegend();
+        });
+    </script>
+</body>
+
+</html>

samples/line-x-axis-filter.html

@@ -0,0 +1,144 @@
+<!doctype html>
+<html>
+
+<head>
+    <title>Chart with xAxis Filtering</title>
+    <script src="../Chart.js"></script>
+    <script src="../node_modules/jquery/dist/jquery.min.js"></script>
+    <style>
+        canvas {
+            -webkit-box-shadow: 0 0 20px 0 rgba(0, 0, 0, .5);
+        }
+    </style>
+</head>
+
+<body>
+    <div style="width:50%;">
+        <canvas id="canvas" style="width:100%;height:100%"></canvas>
+    </div>
+    <br>
+    <br>
+    <button id="randomizeData">Randomize Data</button>
+    <button id="addDataset">Add Dataset</button>
+    <button id="removeDataset">Remove Dataset</button>
+    <button id="addData">Add Data</button>
+    <button id="removeData">Remove Data</button>
+    <script>
+        var randomScalingFactor = function() {
+            return Math.round(Math.random() * 50 * (Math.random() > 0.5 ? 1 : 1)) + 50;
+        };
+        var randomColorFactor = function() {
+            return Math.round(Math.random() * 255);
+        };
+        var randomColor = function(opacity) {
+            return 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',' + (opacity || '.3') + ')';
+        };
+
+        var config = {
+            type: 'line',
+            data: {
+                labels: ["January is a long month", "February", "March", "April", "May", "June", "July"],
+                datasets: [{
+                    label: "My First dataset",
+                    data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
+                    fill: false,
+                    borderDash: [5, 5],
+                }, {
+                    label: "My Second dataset",
+                    data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
+                }]
+            },
+            options: {
+                responsive: true,
+                scales: {
+                    xAxes: [{
+                        display: true,
+                        ticks: {
+                            callback: function(dataLabel, index) {
+                                return dataLabel;
+                            }
+                        }
+                    }],
+                    yAxes: [{
+                        display: true,
+                        beginAtZero: false
+                    }]
+                }
+            }
+        };
+
+        $.each(config.data.datasets, function(i, dataset) {
+            dataset.borderColor = randomColor(0.4);
+            dataset.backgroundColor = randomColor(0.5);
+            dataset.pointBorderColor = randomColor(0.7);
+            dataset.pointBackgroundColor = randomColor(0.5);
+            dataset.pointBorderWidth = 1;
+        });
+
+        console.log(config.data);
+
+        window.onload = function() {
+            var ctx = document.getElementById("canvas").getContext("2d");
+            window.myLine = new Chart(ctx, config);
+        };
+
+        $('#randomizeData').click(function() {
+            $.each(config.data.datasets, function(i, dataset) {
+                dataset.data = dataset.data.map(function() {
+                    return randomScalingFactor();
+                });
+
+            });
+
+            window.myLine.update();
+        });
+
+        $('#addDataset').click(function() {
+            var newDataset = {
+                label: 'Dataset ' + config.data.datasets.length,
+                borderColor: randomColor(0.4),
+                backgroundColor: randomColor(0.5),
+                pointBorderColor: randomColor(0.7),
+                pointBackgroundColor: randomColor(0.5),
+                pointBorderWidth: 1,
+                data: [],
+            };
+
+            for (var index = 0; index < config.data.labels.length; ++index) {
+                newDataset.data.push(randomScalingFactor());
+            }
+
+            config.data.datasets.push(newDataset);
+            window.myLine.update();
+        });
+
+        $('#addData').click(function() {
+            if (config.data.datasets.length > 0) {
+                config.data.labels.push('dataset #' + config.data.labels.length);
+
+                for (var index = 0; index < config.data.datasets.length; ++index) {
+                    config.data.datasets[index].data.push(randomScalingFactor());
+                }
+
+                window.myLine.update();
+            }
+        });
+
+        $('#removeDataset').click(function() {
+            config.data.datasets.splice(0, 1);
+            window.myLine.update();
+        });
+
+        $('#removeData').click(function() {
+            config.data.labels.splice(-1, 1); // remove the label first
+
+            config.data.datasets.forEach(function(dataset, datasetIndex) {
+                dataset.data.pop();
+            });
+
+            window.myLine.update();
+        });
+    </script>
+</body>
+
+</html>

samples/line.html

@@ -1,43 +1,164 @@
 <!doctype html>
 <html>
-	<head>
-		<title>Line Chart</title>
-		<script src="../Chart.js"></script>
-		<meta name = "viewport" content = "initial-scale = 1, user-scalable = no">
-		<style>
-			canvas{
-			}
-		</style>
-	</head>
-	<body>
-		<canvas id="canvas" height="450" width="600"></canvas>
 
+<head>
+    <title>Line Chart</title>
+    <script src="../Chart.js"></script>
+    <script src="../node_modules/jquery/dist/jquery.min.js"></script>
+    <style>
+        canvas {
+            -webkit-box-shadow: 0 0 20px 0 rgba(0, 0, 0, .5);
+        }
+    </style>
+</head>
 
-	<script>
+<body>
+    <div style="width:50%;">
+        <canvas id="canvas" style="width:100%;height:100%"></canvas>
+    </div>
+    <br>
+    <br>
+    <button id="randomizeData">Randomize Data</button>
+    <button id="addDataset">Add Dataset</button>
+    <button id="removeDataset">Remove Dataset</button>
+    <button id="addData">Add Data</button>
+    <button id="removeData">Remove Data</button>
+    <div>
+        <h3>Legend</h3>
+        <div id="legendContainer">
+        </div>
+    </div>
+    <script>
+        var randomScalingFactor = function() {
+            return Math.round(Math.random() * 100 * (Math.random() > 0.5 ? -1 : 1));
+        };
+        var randomColorFactor = function() {
+            return Math.round(Math.random() * 255);
+        };
+        var randomColor = function(opacity) {
+            return 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',' + (opacity || '.3') + ')';
+        };
 
-		var lineChartData = {
-			labels : ["January","February","March","April","May","June","July"],
-			datasets : [
-				{
-					fillColor : "rgba(220,220,220,0.5)",
-					strokeColor : "rgba(220,220,220,1)",
-					pointColor : "rgba(220,220,220,1)",
-					pointStrokeColor : "#fff",
-					data : [65,59,90,81,56,55,40]
-				},
-				{
-					fillColor : "rgba(151,187,205,0.5)",
-					strokeColor : "rgba(151,187,205,1)",
-					pointColor : "rgba(151,187,205,1)",
-					pointStrokeColor : "#fff",
-					data : [28,48,40,19,96,27,100]
-				}
-			]
-			
-		}
+        var config = {
+            type: 'line',
+            data: {
+                labels: ["January", "February", "March", "April", "May", "June", "July"],
+                datasets: [{
+                    label: "My First dataset",
+                    data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
+                    fill: false,
+                    borderDash: [5, 5],
+                }, {
+                    label: "My Second dataset",
+                    data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
+                }]
+            },
+            options: {
+                responsive: true,
+                scales: {
+                    xAxes: [{
+                        display: true,
+                        scaleLabel: {
+                            show: true,
+                            labelString: 'Month'
+                        }
+                    }],
+                    yAxes: [{
+                        display: true,
+                        scaleLabel: {
+                            show: true,
+                            labelString: 'Value'
+                        }
+                    }]
+                }
+            }
+        };
+
+        $.each(config.data.datasets, function(i, dataset) {
+            dataset.borderColor = randomColor(0.4);
+            dataset.backgroundColor = randomColor(0.5);
+            dataset.pointBorderColor = randomColor(0.7);
+            dataset.pointBackgroundColor = randomColor(0.5);
+            dataset.pointBorderWidth = 1;
+        });
+
+        console.log(config.data);
+
+        window.onload = function() {
+            var ctx = document.getElementById("canvas").getContext("2d");
+            window.myLine = new Chart(ctx, config);
+
+            updateLegend();
+        };
+
+        function updateLegend() {
+            $legendContainer = $('#legendContainer');
+            $legendContainer.empty();
+            $legendContainer.append(window.myLine.generateLegend());
+        }
+
+        $('#randomizeData').click(function() {
+            $.each(config.data.datasets, function(i, dataset) {
+                dataset.data = dataset.data.map(function() {
+                    return randomScalingFactor();
+                });
+
+            });
+
+            window.myLine.update();
+            updateLegend();
+        });
+
+        $('#addDataset').click(function() {
+            var newDataset = {
+                label: 'Dataset ' + config.data.datasets.length,
+                borderColor: randomColor(0.4),
+                backgroundColor: randomColor(0.5),
+                pointBorderColor: randomColor(0.7),
+                pointBackgroundColor: randomColor(0.5),
+                pointBorderWidth: 1,
+                data: [],
+            };
+
+            for (var index = 0; index < config.data.labels.length; ++index) {
+                newDataset.data.push(randomScalingFactor());
+            }
+
+            config.data.datasets.push(newDataset);
+            window.myLine.update();
+            updateLegend();
+        });
+
+        $('#addData').click(function() {
+            if (config.data.datasets.length > 0) {
+                config.data.labels.push('dataset #' + config.data.labels.length);
+
+                $.each(config.data.datasets, function(i, dataset) {
+                    dataset.data.push(randomScalingFactor());
+                });
+
+                window.myLine.update();
+                updateLegend();
+            }
+        });
+
+        $('#removeDataset').click(function() {
+            config.data.datasets.splice(0, 1);
+            window.myLine.update();
+            updateLegend();
+        });
+
+        $('#removeData').click(function() {
+            config.data.labels.splice(-1, 1); // remove the label first
+
+            config.data.datasets.forEach(function(dataset, datasetIndex) {
+                dataset.data.pop();
+            });
+
+            window.myLine.update();
+            updateLegend();
+        });
+    </script>
+</body>
 
-	var myLine = new Chart(document.getElementById("canvas").getContext("2d")).Line(lineChartData);
-	
-	</script>
-	</body>
 </html>

samples/pie.html

@@ -1,38 +1,122 @@
 <!doctype html>
 <html>
-	<head>
-		<title>Radar Chart</title>
-		<script src="../Chart.js"></script>
-		<meta name = "viewport" content = "initial-scale = 1, user-scalable = no">
-		<style>
-			canvas{
-			}
-		</style>
-	</head>
-	<body>
-		<canvas id="canvas" height="450" width="450"></canvas>
 
+<head>
+    <title>Pie Chart</title>
+    <script src="../Chart.js"></script>
+    <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
+</head>
 
-	<script>
+<body>
+    <div id="canvas-holder" style="width:50%">
+        <canvas id="chart-area" width="300" height="300" />
+    </div>
+    <button id="randomizeData">Randomize Data</button>
+    <button id="addDataset">Add Dataset</button>
+    <button id="removeDataset">Remove Dataset</button>
+    <script>
+    var randomScalingFactor = function() {
+        return Math.round(Math.random() * 100);
+    };
+    var randomColorFactor = function() {
+        return Math.round(Math.random() * 255);
+    };
+    var randomColor = function(opacity) {
+        return 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',' + (opacity || '.3') + ')';
+    };
 
-		var pieData = [
-				{
-					value: 30,
-					color:"#F38630"
-				},
-				{
-					value : 50,
-					color : "#E0E4CC"
-				},
-				{
-					value : 100,
-					color : "#69D2E7"
-				}
-			
-			];
+    var config = {
+        type: 'pie',
+        data: {
+            datasets: [{
+                data: [
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                ],
+                backgroundColor: [
+                    "#F7464A",
+                    "#46BFBD",
+                    "#FDB45C",
+                    "#949FB1",
+                    "#4D5360",
+                ],
+            }, {
+                data: [
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                ],
+                backgroundColor: [
+                    "#F7464A",
+                    "#46BFBD",
+                    "#FDB45C",
+                    "#949FB1",
+                    "#4D5360",
+                ],
+            }, {
+                data: [
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                ],
+                backgroundColor: [
+                    "#F7464A",
+                    "#46BFBD",
+                    "#FDB45C",
+                    "#949FB1",
+                    "#4D5360",
+                ],
+            }],
+            labels: [
+                "Red",
+                "Green",
+                "Yellow",
+                "Grey",
+                "Dark Grey"
+            ]
+        },
+        options: {
+            responsive: true
+        }
+    };
+
+    window.onload = function() {
+        var ctx = document.getElementById("chart-area").getContext("2d");
+        window.myPie = new Chart(ctx, config);
+    };
+
+    $('#randomizeData').click(function() {
+        $.each(config.data.datasets, function(i, piece) {
+            $.each(piece.data, function(j, value) {
+                config.data.datasets[i].data[j] = randomScalingFactor();
+                //config.data.datasets.backgroundColor[i] = 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',.7)';
+            });
+        });
+        window.myPie.update();
+    });
+
+    $('#addDataset').click(function() {
+        var newDataset = {
+            backgroundColor: [randomColor(0.7), randomColor(0.7), randomColor(0.7), randomColor(0.7), randomColor(0.7)],
+            data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
+        };
+
+        config.data.datasets.push(newDataset);
+        window.myPie.update();
+    });
+
+    $('#removeDataset').click(function() {
+        config.data.datasets.splice(0, 1);
+        window.myPie.update();
+    });
+    </script>
+</body>
 
-	var myPie = new Chart(document.getElementById("canvas").getContext("2d")).Pie(pieData);
-	
-	</script>
-	</body>
 </html>

samples/polar-area.html

@@ -0,0 +1,120 @@
+<!doctype html>
+<html>
+
+<head>
+    <title>Polar Area Chart</title>
+    <script src="../Chart.js"></script>
+    <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
+</head>
+
+<body>
+    <div id="canvas-holder" style="width:50%" width="50%">
+        <canvas id="chart-area"></canvas>
+    </div>
+    <button id="randomizeData">Randomize Data</button>
+    <button id="addData">Add Data</button>
+    <button id="removeData">Remove Data</button>
+    <div>
+        <h3>Legend</h3>
+        <div id="legendContainer">
+            
+        </div>
+    </div>
+    <script>
+    var randomScalingFactor = function() {
+        return Math.round(Math.random() * 100);
+    };
+    var randomColorFactor = function() {
+        return Math.round(Math.random() * 255);
+    };
+    var randomColor = function(opacity) {
+        return 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',' + (opacity || '.3') + ')';
+    };
+
+    var config = {
+        data: {
+            datasets: [{
+                data: [
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                    randomScalingFactor(),
+                ],
+                backgroundColor: [
+                    "#F7464A",
+                    "#46BFBD",
+                    "#FDB45C",
+                    "#949FB1",
+                    "#4D5360",
+                ],
+            }],
+            labels: [
+                "Red",
+                "Green",
+                "Yellow",
+                "Grey",
+                "Dark Grey"
+            ]
+        },
+        options: {
+            responsive: true,
+            scale: {
+                beginAtZero: true,
+                reverse: false
+            }
+        }
+    };
+
+    window.onload = function() {
+        var ctx = document.getElementById("chart-area");
+        window.myPolarArea = Chart.PolarArea(ctx, config);
+        updateLegend();
+    };
+
+    function updateLegend() {
+        $legendContainer = $('#legendContainer');
+        $legendContainer.empty();
+        $legendContainer.append(window.myPolarArea.generateLegend());
+    }
+
+    $('#randomizeData').click(function() {
+        $.each(config.data.datasets, function(i, piece) {
+            $.each(piece.data, function(j, value) {
+                config.data.datasets[i].data[j] = randomScalingFactor();
+                config.data.datasets[i].backgroundColor[j] = randomColor();
+            });
+        });
+        window.myPolarArea.update();
+        updateLegend();
+    });
+
+    $('#addData').click(function() {
+        if (config.data.datasets.length > 0) {
+            config.data.labels.push('dataset #' + config.data.labels.length);
+
+            $.each(config.data.datasets, function(i, dataset) {
+                dataset.backgroundColor.push(randomColor());
+                dataset.data.push(randomScalingFactor());
+            });
+
+            window.myPolarArea.update();
+            updateLegend();
+        }
+    });
+
+    $('#removeData').click(function() {
+        config.data.labels.pop(); // remove the label first
+
+        $.each(config.data.datasets, function(i, dataset) {
+            dataset.backgroundColor.pop();
+            dataset.data.pop();
+        });
+
+        window.myPolarArea.update();
+        updateLegend();
+    });
+    </script>
+</body>
+
+</html>

samples/polarArea.html

@@ -1,44 +0,0 @@
-<!doctype html>
-<html>
-	<head>
-		<title>Polar Area Chart</title>
-		<script src="../Chart.js"></script>
-		<meta name = "viewport" content = "initial-scale = 1, user-scalable = no">
-		<style>
-		</style>
-	</head>
-	<body>
-		<canvas id="canvas" height="400" width="400"></canvas>
-
-
-	<script>
-	var chartData = [
-			{
-				value : Math.random(),
-				color: "#D97041"
-			},
-			{
-				value : Math.random(),
-				color: "#C7604C"
-			},
-			{
-				value : Math.random(),
-				color: "#21323D"
-			},
-			{
-				value : Math.random(),
-				color: "#9D9B7F"
-			},
-			{
-				value : Math.random(),
-				color: "#7D4F6D"
-			},
-			{
-				value : Math.random(),
-				color: "#584A5E"
-			}
-		];
-	var myPolarArea = new Chart(document.getElementById("canvas").getContext("2d")).PolarArea(chartData);
-	</script>
-	</body>
-</html>

samples/radar.html

@@ -1,43 +1,137 @@
 <!doctype html>
 <html>
-	<head>
-		<title>Radar Chart</title>
-		<script src="../Chart.js"></script>
-		<meta name = "viewport" content = "initial-scale = 1, user-scalable = no">
-		<style>
-			canvas{
-			}
-		</style>
-	</head>
-	<body>
-		<canvas id="canvas" height="450" width="450"></canvas>
 
+<head>
+    <title>Radar Chart</title>
+    <script src="../Chart.js"></script>
+    <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
+</head>
 
-	<script>
+<body>
+    <div style="width:50%">
+        <canvas id="canvas" height="450" width="450"></canvas>
+    </div>
+    <button id="randomizeData">Randomize Data</button>
+    <button id="addDataset">Add Dataset</button>
+    <button id="removeDataset">Remove Dataset</button>
+    <button id="addData">Add Data</button>
+    <button id="removeData">Remove Data</button>
+    <div>
+        <h3>Legend</h3>
+        <div id="legendContainer">
+            
+        </div>
+    </div>
+    <script>
+    var randomScalingFactor = function() {
+        return Math.round(Math.random() * 100);
+    };
+    var randomColorFactor = function() {
+        return Math.round(Math.random() * 255);
+    };
+    var randomColor = function(opacity) {
+        return 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',' + (opacity || '.3') + ')';
+    };
 
-		var radarChartData = {
-			labels : ["Eating","Drinking","Sleeping","Designing","Coding","Partying","Running"],
-			datasets : [
-				{
-					fillColor : "rgba(220,220,220,0.5)",
-					strokeColor : "rgba(220,220,220,1)",
-					pointColor : "rgba(220,220,220,1)",
-					pointStrokeColor : "#fff",
-					data : [65,59,90,81,56,55,40]
-				},
-				{
-					fillColor : "rgba(151,187,205,0.5)",
-					strokeColor : "rgba(151,187,205,1)",
-					pointColor : "rgba(151,187,205,1)",
-					pointStrokeColor : "#fff",
-					data : [28,48,40,19,96,27,100]
-				}
-			]
-			
-		}
+    var config = {
+        type: 'radar',
+        data: {
+            labels: ["Eating", "Drinking", "Sleeping", "Designing", "Coding", "Cycling", "Running"],
+            datasets: [{
+                label: "My First dataset",
+                backgroundColor: "rgba(220,220,220,0.2)",
+                pointBackgroundColor: "rgba(220,220,220,1)",
+                data: [null, randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
+            }, {
+                label: "My Second dataset",
+                backgroundColor: "rgba(151,187,205,0.2)",
+                pointBackgroundColor: "rgba(151,187,205,1)",
+                hoverPointBackgroundColor: "#fff",
+                pointHighlightStroke: "rgba(151,187,205,1)",
+                data: [null, randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
+            }]
+        },
+        options: {
+            scale: {
+                beginAtZero: true,
+                reverse: false
+            }
+        }
+    };
+
+    function updateLegend() {
+        $legendContainer = $('#legendContainer');
+        $legendContainer.empty();
+        $legendContainer.append(window.myRadar.generateLegend());
+    }
+
+    window.onload = function() {
+        window.myRadar = new Chart(document.getElementById("canvas"), config);
+        updateLegend();
+    };
+
+    $('#randomizeData').click(function() {
+        $.each(config.data.datasets, function(i, dataset) {
+            dataset.data = dataset.data.map(function() {
+                return randomScalingFactor();
+            });
+
+        });
+
+        window.myRadar.update();
+        updateLegend();
+    });
+
+    $('#addDataset').click(function() {
+        var newDataset = {
+            label: 'Dataset ' + config.data.datasets.length,
+            borderColor: randomColor(0.4),
+            backgroundColor: randomColor(0.5),
+            pointBorderColor: randomColor(0.7),
+            pointBackgroundColor: randomColor(0.5),
+            pointBorderWidth: 1,
+            data: [],
+        };
+
+        for (var index = 0; index < config.data.labels.length; ++index) {
+            newDataset.data.push(randomScalingFactor());
+        }
+
+        config.data.datasets.push(newDataset);
+        window.myRadar.update();
+        updateLegend();
+    });
+
+    $('#addData').click(function() {
+        if (config.data.datasets.length > 0) {
+            config.data.labels.push('dataset #' + config.data.labels.length);
+
+            $.each(config.data.datasets, function (i, dataset) {
+                dataset.data.push(randomScalingFactor());
+            });
+
+            window.myRadar.update();
+            updateLegend();
+        }
+    });
+
+    $('#removeDataset').click(function() {
+        config.data.datasets.splice(0, 1);
+        window.myRadar.update();
+        updateLegend();
+    });
+
+    $('#removeData').click(function() {
+        config.data.labels.pop(); // remove the label first
+
+        $.each(config.data.datasets, function(i, dataset) {
+            dataset.data.pop();
+        });
+
+        window.myRadar.update();
+        updateLegend();
+    });
+    </script>
+</body>
 
-	var myRadar = new Chart(document.getElementById("canvas").getContext("2d")).Radar(radarChartData,{scaleShowLabels : false, pointLabelFontSize : 10});
-	
-	</script>
-	</body>
 </html>

samples/scatter-logX.html

@@ -0,0 +1,174 @@
+<!doctype html>
+<html>
+
+<head>
+    <title>Scatter Chart</title>
+    <script src="../Chart.js"></script>
+    <script src="../node_modules/jquery/dist/jquery.min.js"></script>
+</head>
+
+<body>
+    <div style="width:50%">
+        <div>
+            <canvas id="canvas" height="450" width="600" style="border: 1px solid red;"></canvas>
+        </div>
+    </div>
+    <script>
+    var randomScalingFactor = function() {
+        return Math.round(Math.random() * 10.0) * Math.pow(10, Math.ceil(Math.random() * 5));
+    };
+    var randomColor = function(opacity) {
+        return 'rgba(' + Math.round(Math.random() * 255) + ',' + Math.round(Math.random() * 255) + ',' + Math.round(Math.random() * 255) + ',' + (opacity || '.3') + ')';
+    };
+
+    var scatterChartData = {
+        datasets: [{
+            label: "V(node2)",
+			data: [{
+				x: 1,
+				y: -1.711e-2,
+			}, {
+				x: 1.26,
+				y: -2.708e-2,
+			}, {
+				x: 1.58,
+				y: -4.285e-2,
+			}, {
+				x: 2.0,
+				y: -6.772e-2,
+			}, {
+				x: 2.51,
+				y: -1.068e-1,
+			}, {
+				x: 3.16,
+				y: -1.681e-1,
+			}, {
+				x: 3.98,
+				y: -2.635e-1,
+			}, {
+				x: 5.01,
+				y: -4.106e-1,
+			}, {
+				x: 6.31,
+				y: -6.339e-1,
+			}, {
+				x: 7.94,
+				y: -9.659e-1,
+			}, {
+				x: 10.00,
+				y: -1.445,
+			}, {
+				x: 12.6,
+				y: -2.110,
+			}, {
+				x: 15.8,
+				y: -2.992,
+			}, {
+				x: 20.0,
+				y: -4.102,
+			}, {
+				x: 25.1,
+				y: -5.429,
+			}, {
+				x: 31.6,
+				y: -6.944,
+			}, {
+				x: 39.8,
+				y: -8.607,
+			}, {
+				x: 50.1,
+				y: -1.038e1,
+			}, {
+				x: 63.1,
+				y: -1.223e1,
+			}, {
+				x: 79.4,
+				y: -1.413e1,
+			}, {
+				x: 100.00,
+				y: -1.607e1,
+			}, {
+				x: 126,
+				y: -1.803e1,
+			}, {
+				x: 158,
+				y: -2e1,
+			}, {
+				x: 200,
+				y: -2.199e1,
+			}, {
+				x: 251,
+				y: -2.398e1,
+			}, {
+				x: 316,
+				y: -2.597e1,
+			}, {
+				x: 398,
+				y: -2.797e1,
+			}, {
+				x: 501,
+				y: -2.996e1,
+			}, {
+				x: 631,
+				y: -3.196e1,
+			}, {
+				x: 794,
+				y: -3.396e1,
+			}, {
+				x: 1000,
+				y: -3.596e1,
+			},]
+        }]
+    };
+
+    $.each(scatterChartData.datasets, function(i, dataset) {
+        dataset.borderColor = randomColor(0.4);
+        dataset.backgroundColor = randomColor(0.1);
+        dataset.pointBorderColor = randomColor(0.7);
+        dataset.pointBackgroundColor = randomColor(0.5);
+        dataset.pointBorderWidth = 1;
+    });
+
+    window.onload = function() {
+        var ctx = document.getElementById("canvas").getContext("2d");
+        window.myScatter = Chart.Scatter(ctx, {
+        	data: scatterChartData,
+        	options: {
+	            scales: {
+	            	xAxes: [{
+	            		type: 'logarithmic',
+	            		position: 'bottom',
+	            		ticks: {
+	            			userCallback: function(tick) {
+	            				var remain = tick / (Math.pow(10, Math.floor(Chart.helpers.log10(tick))));
+	            				if (remain === 1 || remain === 2 || remain === 5) {
+	            					return tick.toString() + "Hz";
+	            				}
+	            				return '';
+	            			},
+	            		},
+	            		scaleLabel: {
+	            			labelString: 'Frequency',
+	            			show: true,
+	            		}
+	            	}],
+	            	yAxes: [{
+	            		type: 'linear',
+	            		ticks: {
+	            			userCallback: function(tick) {
+	            				return tick.toString() + "dB";
+	            			}
+	            		},
+	            		scaleLabel: {
+	            			labelString: 'Voltage',
+	            			show: true
+	            		}
+	            	}]
+	            }
+            }
+        });
+    };
+    </script>
+</body>
+
+</html>

samples/scatter-multi-axis.html

@@ -0,0 +1,177 @@
+<!doctype html>
+<html>
+
+<head>
+    <title>Scatter Chart Multi Axis</title>
+    <script src="../Chart.js"></script>
+    <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
+</head>
+
+<body>
+    <div style="width:50%">
+        <div>
+            <canvas id="canvas" height="450" width="600"></canvas>
+        </div>
+    </div>
+    <button id="randomizeData">Randomize Data</button>
+    <script>
+    var randomScalingFactor = function() {
+        return (Math.random() > 0.5 ? 1.0 : -1.0) * Math.round(Math.random() * 100);
+    };
+    var randomColor = function(opacity) {
+        return 'rgba(' + Math.round(Math.random() * 255) + ',' + Math.round(Math.random() * 255) + ',' + Math.round(Math.random() * 255) + ',' + (opacity || '.3') + ')';
+    };
+
+    var scatterChartData = {
+        datasets: [{
+            label: "My First dataset",
+            xAxisID: "x-axis-1",
+            yAxisID: "y-axis-1",
+			data: [{
+				x: randomScalingFactor(),
+				y: randomScalingFactor(),
+			}, {
+				x: randomScalingFactor(),
+				y: randomScalingFactor(),
+			}, {
+				x: randomScalingFactor(),
+				y: randomScalingFactor(),
+			}, {
+				x: randomScalingFactor(),
+				y: randomScalingFactor(),
+			}, {
+				x: randomScalingFactor(),
+				y: randomScalingFactor(),
+			}, {
+				x: randomScalingFactor(),
+				y: randomScalingFactor(),
+			}, {
+				x: randomScalingFactor(),
+				y: randomScalingFactor(),
+			}]
+        }, {
+            label: "My Second dataset",
+            xAxisID: "x-axis-1",
+            yAxisID: "y-axis-2",
+            data: [{
+				x: randomScalingFactor(),
+				y: randomScalingFactor(),
+			}, {
+				x: randomScalingFactor(),
+				y: randomScalingFactor(),
+			}, {
+				x: randomScalingFactor(),
+				y: randomScalingFactor(),
+			}, {
+				x: randomScalingFactor(),
+				y: randomScalingFactor(),
+			}, {
+				x: randomScalingFactor(),
+				y: randomScalingFactor(),
+			}, {
+				x: randomScalingFactor(),
+				y: randomScalingFactor(),
+			}, {
+				x: randomScalingFactor(),
+				y: randomScalingFactor(),
+			}]
+        }]
+    };
+
+    $.each(scatterChartData.datasets, function(i, dataset) {
+        dataset.borderColor = randomColor(0.4);
+        dataset.backgroundColor = randomColor(0.1);
+        dataset.pointBorderColor = randomColor(0.7);
+        dataset.pointBackgroundColor = randomColor(0.5);
+        dataset.pointBorderWidth = 1;
+    });
+
+    console.log(scatterChartData);
+
+    window.onload = function() {
+        var ctx = document.getElementById("canvas").getContext("2d");
+        window.myScatter = Chart.Scatter(ctx, {
+        	data: scatterChartData,
+        	options: {
+	            responsive: true,
+	            hoverMode: 'single',
+	            scales: {
+	            	xAxes: [{
+	            		position: "bottom",
+	            		gridLines: {
+	            			zeroLineColor: "rgba(0,0,0,1)"
+	            		}
+	            	}],
+	            	yAxes: [{
+		                type: "linear", // only linear but allow scale type registration. This allows extensions to exist solely for log scale for instance
+		                display: true,
+		                position: "left",
+		                id: "y-axis-1",
+		            }, {
+		                type: "linear", // only linear but allow scale type registration. This allows extensions to exist solely for log scale for instance
+		                display: true,
+		                position: "right",
+		                reverse: true,
+		                id: "y-axis-2",
+		        
+		                // grid line settings
+		                gridLines: {
+		                    drawOnChartArea: false, // only want the grid lines for one axis to show up
+		                },
+		            }],
+	            }
+	        }
+        });
+    };
+
+    $('#randomizeData').click(function() {
+        scatterChartData.datasets[0].data = [{
+			x: randomScalingFactor(),
+			y: randomScalingFactor(),
+		}, {
+			x: randomScalingFactor(),
+			y: randomScalingFactor(),
+		}, {
+			x: randomScalingFactor(),
+			y: randomScalingFactor(),
+		}, {
+			x: randomScalingFactor(),
+			y: randomScalingFactor(),
+		}, {
+			x: randomScalingFactor(),
+			y: randomScalingFactor(),
+		}, {
+			x: randomScalingFactor(),
+			y: randomScalingFactor(),
+		}, {
+			x: randomScalingFactor(),
+			y: randomScalingFactor(),
+		}];
+        scatterChartData.datasets[1].data = [{
+			x: randomScalingFactor(),
+			y: randomScalingFactor(),
+		}, {
+			x: randomScalingFactor(),
+			y: randomScalingFactor(),
+		}, {
+			x: randomScalingFactor(),
+			y: randomScalingFactor(),
+		}, {
+			x: randomScalingFactor(),
+			y: randomScalingFactor(),
+		}, {
+			x: randomScalingFactor(),
+			y: randomScalingFactor(),
+		}, {
+			x: randomScalingFactor(),
+			y: randomScalingFactor(),
+		}, {
+			x: randomScalingFactor(),
+			y: randomScalingFactor(),
+		}]
+        window.myScatter.update();
+    });
+    </script>
+</body>
+
+</html>

samples/scatter.html

@@ -0,0 +1,168 @@
+<!doctype html>
+<html>
+
+<head>
+    <title>Scatter Chart</title>
+    <script src="../Chart.js"></script>
+    <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
+</head>
+
+<body>
+    <div style="width:50%">
+        <div>
+            <canvas id="canvas" height="450" width="600"></canvas>
+        </div>
+    </div>
+    <button id="randomizeData">Randomize Data</button>
+    <script>
+        var randomScalingFactor = function() {
+            return (Math.random() > 0.5 ? 1.0 : -1.0) * Math.round(Math.random() * 100);
+        };
+        var randomColor = function(opacity) {
+            return 'rgba(' + Math.round(Math.random() * 255) + ',' + Math.round(Math.random() * 255) + ',' + Math.round(Math.random() * 255) + ',' + (opacity || '.3') + ')';
+        };
+
+        var scatterChartData = {
+            datasets: [{
+                label: "My First dataset",
+                data: [{
+                    x: randomScalingFactor(),
+                    y: randomScalingFactor(),
+                }, {
+                    x: randomScalingFactor(),
+                    y: randomScalingFactor(),
+                }, {
+                    x: randomScalingFactor(),
+                    y: randomScalingFactor(),
+                }, {
+                    x: randomScalingFactor(),
+                    y: randomScalingFactor(),
+                }, {
+                    x: randomScalingFactor(),
+                    y: randomScalingFactor(),
+                }, {
+                    x: randomScalingFactor(),
+                    y: randomScalingFactor(),
+                }, {
+                    x: randomScalingFactor(),
+                    y: randomScalingFactor(),
+                }]
+            }, {
+                label: "My Second dataset",
+                data: [{
+                    x: randomScalingFactor(),
+                    y: randomScalingFactor(),
+                }, {
+                    x: randomScalingFactor(),
+                    y: randomScalingFactor(),
+                }, {
+                    x: randomScalingFactor(),
+                    y: randomScalingFactor(),
+                }, {
+                    x: randomScalingFactor(),
+                    y: randomScalingFactor(),
+                }, {
+                    x: randomScalingFactor(),
+                    y: randomScalingFactor(),
+                }, {
+                    x: randomScalingFactor(),
+                    y: randomScalingFactor(),
+                }, {
+                    x: randomScalingFactor(),
+                    y: randomScalingFactor(),
+                }]
+            }]
+        };
+
+        $.each(scatterChartData.datasets, function(i, dataset) {
+            dataset.borderColor = randomColor(0.4);
+            dataset.backgroundColor = randomColor(0.1);
+            dataset.pointBorderColor = randomColor(0.7);
+            dataset.pointBackgroundColor = randomColor(0.5);
+            dataset.pointBorderWidth = 1;
+        });
+
+        console.log(scatterChartData);
+
+        window.onload = function() {
+            var ctx = document.getElementById("canvas").getContext("2d");
+            window.myScatter = Chart.Scatter(ctx, {
+                data: scatterChartData,
+                options: {
+                    scales: {
+                        xAxes: [{
+                            position: 'top',
+                            gridLines: {
+                                zeroLineColor: "rgba(0,255,0,1)"
+                            },
+                            scaleLabel: {
+                                show: true,
+                                labelString: 'x axis'
+                            }
+                        }],
+                        yAxes: [{
+                            position: 'right',
+                            gridLines: {
+                                zeroLineColor: "rgba(0,255,0,1)"
+                            },
+                            scaleLabel: {
+                                show: true,
+                                labelString: 'y axis'
+                            }
+                        }]
+                    }
+                }
+            });
+        };
+
+        $('#randomizeData').click(function() {
+            scatterChartData.datasets[0].data = [{
+                x: randomScalingFactor(),
+                y: randomScalingFactor(),
+            }, {
+                x: randomScalingFactor(),
+                y: randomScalingFactor(),
+            }, {
+                x: randomScalingFactor(),
+                y: randomScalingFactor(),
+            }, {
+                x: randomScalingFactor(),
+                y: randomScalingFactor(),
+            }, {
+                x: randomScalingFactor(),
+                y: randomScalingFactor(),
+            }, {
+                x: randomScalingFactor(),
+                y: randomScalingFactor(),
+            }, {
+                x: randomScalingFactor(),
+                y: randomScalingFactor(),
+            }];
+            scatterChartData.datasets[1].data = [{
+                x: randomScalingFactor(),
+                y: randomScalingFactor(),
+            }, {
+                x: randomScalingFactor(),
+                y: randomScalingFactor(),
+            }, {
+                x: randomScalingFactor(),
+                y: randomScalingFactor(),
+            }, {
+                x: randomScalingFactor(),
+                y: randomScalingFactor(),
+            }, {
+                x: randomScalingFactor(),
+                y: randomScalingFactor(),
+            }, {
+                x: randomScalingFactor(),
+                y: randomScalingFactor(),
+            }, {
+                x: randomScalingFactor(),
+                y: randomScalingFactor(),
+            }]
+            window.myScatter.update();
+        });
+    </script>
+</body>
+
+</html>

samples/sixup.html

@@ -1,155 +0,0 @@
-<!doctype html>
-<html>
-	<head>
-		<title>Doughnut Chart</title>
-		<script src="../Chart.js"></script>
-		<meta name = "viewport" content = "initial-scale = 1, user-scalable = no">
-		<style>
-			canvas{
-				float: left;
-			}
-		</style>
-	</head>
-	<body>
-		<div style="width:600px;height:600px;">
-			<canvas id="doughnut" height="300" width="200"></canvas>
-			<canvas id="line" height="300" width="200"></canvas>
-			<canvas id="polarArea" height="300" width="200"></canvas>
-			<canvas id="bar" height="300" width="200"></canvas>
-			<canvas id="pie" height="300" width="200"></canvas>
-			<canvas id="radar" height="300" width="200"></canvas>
-		</div>
-
-
-	<script>
-
-		var doughnutData = [
-				{
-					value: 30,
-					color:"#F7464A"
-				},
-				{
-					value : 50,
-					color : "#46BFBD"
-				},
-				{
-					value : 100,
-					color : "#FDB45C"
-				},
-				{
-					value : 40,
-					color : "#949FB1"
-				},
-				{
-					value : 120,
-					color : "#4D5360"
-				}
-			
-			];
-		var lineChartData = {
-			labels : ["","","","","","",""],
-			datasets : [
-				{
-					fillColor : "rgba(220,220,220,0.5)",
-					strokeColor : "rgba(220,220,220,1)",
-					pointColor : "rgba(220,220,220,1)",
-					pointStrokeColor : "#fff",
-					data : [65,59,90,81,56,55,40]
-				},
-				{
-					fillColor : "rgba(151,187,205,0.5)",
-					strokeColor : "rgba(151,187,205,1)",
-					pointColor : "rgba(151,187,205,1)",
-					pointStrokeColor : "#fff",
-					data : [28,48,40,19,96,27,100]
-				}
-			]
-			
-		};
-		var pieData = [
-				{
-					value: 30,
-					color:"#F38630"
-				},
-				{
-					value : 50,
-					color : "#E0E4CC"
-				},
-				{
-					value : 100,
-					color : "#69D2E7"
-				}
-			
-			];
-		var barChartData = {
-			labels : ["January","February","March","April","May","June","July"],
-			datasets : [
-				{
-					fillColor : "rgba(220,220,220,0.5)",
-					strokeColor : "rgba(220,220,220,1)",
-					data : [65,59,90,81,56,55,40]
-				},
-				{
-					fillColor : "rgba(151,187,205,0.5)",
-					strokeColor : "rgba(151,187,205,1)",
-					data : [28,48,40,19,96,27,100]
-				}
-			]
-			
-		};
-	var chartData = [
-			{
-				value : Math.random(),
-				color: "#D97041"
-			},
-			{
-				value : Math.random(),
-				color: "#C7604C"
-			},
-			{
-				value : Math.random(),
-				color: "#21323D"
-			},
-			{
-				value : Math.random(),
-				color: "#9D9B7F"
-			},
-			{
-				value : Math.random(),
-				color: "#7D4F6D"
-			},
-			{
-				value : Math.random(),
-				color: "#584A5E"
-			}
-		];
-		var radarChartData = {
-			labels : ["","","","","","",""],
-			datasets : [
-				{
-					fillColor : "rgba(220,220,220,0.5)",
-					strokeColor : "rgba(220,220,220,1)",
-					pointColor : "rgba(220,220,220,1)",
-					pointStrokeColor : "#fff",
-					data : [65,59,90,81,56,55,40]
-				},
-				{
-					fillColor : "rgba(151,187,205,0.5)",
-					strokeColor : "rgba(151,187,205,1)",
-					pointColor : "rgba(151,187,205,1)",
-					pointStrokeColor : "#fff",
-					data : [28,48,40,19,96,27,100]
-				}
-			]
-			
-		};
-	new Chart(document.getElementById("doughnut").getContext("2d")).Doughnut(doughnutData);
-	new Chart(document.getElementById("line").getContext("2d")).Line(lineChartData);
-	new Chart(document.getElementById("radar").getContext("2d")).Radar(radarChartData);
-	new Chart(document.getElementById("polarArea").getContext("2d")).PolarArea(chartData);
-	new Chart(document.getElementById("bar").getContext("2d")).Bar(barChartData);
-	new Chart(document.getElementById("pie").getContext("2d")).Pie(pieData);
-	
-	</script>
-	</body>
-</html>

site/assets/effects.js

@@ -1,320 +0,0 @@
-$(window).load(function() {
-		var lineChartData = {
-			labels : ["January","February","March","April","May","June","July"],
-			datasets : [
-				{
-					fillColor : "rgba(220,220,220,0.5)",
-					strokeColor : "rgba(220,220,220,1)",
-					pointColor : "rgba(220,220,220,1)",
-					pointStrokeColor : "#fff",
-					data : [65,59,90,81,56,55,40]
-				},
-				{
-					fillColor : "rgba(151,187,205,0.5)",
-					strokeColor : "rgba(151,187,205,1)",
-					pointColor : "rgba(151,187,205,1)",
-					pointStrokeColor : "#fff",
-					data : [28,48,40,19,96,27,100]
-				}
-			]
-		};
-		
-		var barChartData = {
-			labels : ["January","February","March","April","May","June","July"],
-			datasets : [
-				{
-					fillColor : "rgba(220,220,220,0.5)",
-					strokeColor : "rgba(220,220,220,1)",
-					data : [65,59,90,81,56,55,40]
-				},
-				{
-					fillColor : "rgba(151,187,205,0.5)",
-					strokeColor : "rgba(151,187,205,1)",
-					data : [28,48,40,19,96,27,100]
-				}
-			]
-			
-		};
-		
-		var radarChartData = {
-			labels : ["A","B","C","D","E","F","G"],
-			datasets : [
-				{
-					fillColor : "rgba(220,220,220,0.5)",
-					strokeColor : "rgba(220,220,220,1)",
-					pointColor : "rgba(220,220,220,1)",
-					pointStrokeColor : "#fff",
-					data : [65,59,90,81,56,55,40]
-				},
-				{
-					fillColor : "rgba(151,187,205,0.5)",
-					strokeColor : "rgba(151,187,205,1)",
-					pointColor : "rgba(151,187,205,1)",
-					pointStrokeColor : "#fff",
-					data : [28,48,40,19,96,27,100]
-				}
-			]
-			
-		};
-		var pieChartData = [
-				{
-					value: 30,
-					color:"#F38630"
-				},
-				{
-					value : 50,
-					color : "#E0E4CC"
-				},
-				{
-					value : 100,
-					color : "#69D2E7"
-				}
-			
-		];
-	var polarAreaChartData = [
-			{
-				value : 62,
-				color: "#D97041"
-			},
-			{
-				value : 70,
-				color: "#C7604C"
-			},
-			{
-				value : 41,
-				color: "#21323D"
-			},
-			{
-				value : 24,
-				color: "#9D9B7F"
-			},
-			{
-				value : 55,
-				color: "#7D4F6D"
-			},
-			{
-				value : 18,
-				color: "#584A5E"
-			}
-		];
-		var doughnutChartData = [
-				{
-					value: 30,
-					color:"#F7464A"
-				},
-				{
-					value : 50,
-					color : "#46BFBD"
-				},
-				{
-					value : 100,
-					color : "#FDB45C"
-				},
-				{
-					value : 40,
-					color : "#949FB1"
-				},
-				{
-					value : 120,
-					color : "#4D5360"
-				}
-			
-		];
-				
-		var globalGraphSettings = {animation : Modernizr.canvas};
-		
-		setIntroChart();
-		
-		function setIntroChart(){		
-			var ctx = document.getElementById("introChart").getContext("2d");
-			
-			new Chart(ctx).Line(lineChartData,{animation: Modernizr.canvas, scaleShowLabels : false, scaleFontColor : "#767C8D"});
-		};
-		
-		function showLineChart(){
-			var ctx = document.getElementById("lineChartCanvas").getContext("2d");
-			new Chart(ctx).Line(lineChartData,globalGraphSettings);
-		};
-		function showBarChart(){
-			var ctx = document.getElementById("barChartCanvas").getContext("2d");
-			new Chart(ctx).Bar(barChartData,globalGraphSettings);
-		};
-		function showRadarChart(){
-			var ctx = document.getElementById("radarChartCanvas").getContext("2d");
-			new Chart(ctx).Radar(radarChartData,globalGraphSettings);
-		}
-		function showPolarAreaChart(){
-			var ctx = document.getElementById("polarAreaChartCanvas").getContext("2d");
-			new Chart(ctx).PolarArea(polarAreaChartData,globalGraphSettings);			
-		}
-		function showPieChart(){
-			var ctx = document.getElementById("pieChartCanvas").getContext("2d");
-			new Chart(ctx).Pie(pieChartData,globalGraphSettings);
-		};
-		function showDoughnutChart(){
-			var ctx = document.getElementById("doughnutChartCanvas").getContext("2d");
-			new Chart(ctx).Doughnut(doughnutChartData,globalGraphSettings);
-		};
-		
-		var graphInitDelay = 300;
-		
-		//Set up each of the inview events here.
-		$("#lineChart").on("inview",function(){
-			var $this = $(this);
-			$this.removeClass("hidden").off("inview");
-			setTimeout(showLineChart,graphInitDelay);
-		});
-		$("#barChart").on("inview",function(){
-			var $this = $(this);
-			$this.removeClass("hidden").off("inview");
-			setTimeout(showBarChart,graphInitDelay);
-		});
-		
-		$("#radarChart").on("inview",function(){
-			var $this = $(this);
-			$this.removeClass("hidden").off("inview");
-			setTimeout(showRadarChart,graphInitDelay);			
-		});
-		$("#pieChart").on("inview",function(){
-			var $this = $(this);
-			$this.removeClass("hidden").off("inview");
-			setTimeout(showPieChart,graphInitDelay);			
-		});
-		$("#polarAreaChart").on("inview",function(){
-			var $this = $(this);
-			$this.removeClass("hidden").off("inview");
-			setTimeout(showPolarAreaChart,graphInitDelay);			
-		});
-		$("#doughnutChart").on("inview",function(){
-			var $this = $(this);
-			$this.removeClass("hidden").off("inview");
-			setTimeout(showDoughnutChart,graphInitDelay);			
-		});
-		
-	});
-	
-	/**
-	 * author Christopher Blum
-	 *    - based on the idea of Remy Sharp, http://remysharp.com/2009/01/26/element-in-view-event-plugin/
-	 *    - forked from http://github.com/zuk/jquery.inview/
-	 */
-	(function ($) {
-	  var inviewObjects = {}, viewportSize, viewportOffset,
-	      d = document, w = window, documentElement = d.documentElement, expando = $.expando;
-	
-	  $.event.special.inview = {
-	    add: function(data) {
-	      inviewObjects[data.guid + "-" + this[expando]] = { data: data, $element: $(this) };
-	    },
-	
-	    remove: function(data) {
-	      try { delete inviewObjects[data.guid + "-" + this[expando]]; } catch(e) {}
-	    }
-	  };
-	
-	  function getViewportSize() {
-	    var mode, domObject, size = { height: w.innerHeight, width: w.innerWidth };
-	
-	    // if this is correct then return it. iPad has compat Mode, so will
-	    // go into check clientHeight/clientWidth (which has the wrong value).
-	    if (!size.height) {
-	      mode = d.compatMode;
-	      if (mode || !$.support.boxModel) { // IE, Gecko
-	        domObject = mode === 'CSS1Compat' ?
-	          documentElement : // Standards
-	          d.body; // Quirks
-	        size = {
-	          height: domObject.clientHeight,
-	          width:  domObject.clientWidth
-	        };
-	      }
-	    }
-	
-	    return size;
-	  }
-	
-	  function getViewportOffset() {
-	    return {
-	      top:  w.pageYOffset || documentElement.scrollTop   || d.body.scrollTop,
-	      left: w.pageXOffset || documentElement.scrollLeft  || d.body.scrollLeft
-	    };
-	  }
-	
-	  function checkInView() {
-	    var $elements = $(), elementsLength, i = 0;
-	
-	    $.each(inviewObjects, function(i, inviewObject) {
-	      var selector  = inviewObject.data.selector,
-	          $element  = inviewObject.$element;
-	      $elements = $elements.add(selector ? $element.find(selector) : $element);
-	    });
-	
-	    elementsLength = $elements.length;
-	    if (elementsLength) {
-	      viewportSize   = viewportSize   || getViewportSize();
-	      viewportOffset = viewportOffset || getViewportOffset();
-	
-	      for (; i<elementsLength; i++) {
-	        // Ignore elements that are not in the DOM tree
-	        if (!$.contains(documentElement, $elements[i])) {
-	          continue;
-	        }
-	
-	        var $element      = $($elements[i]),
-	            elementSize   = { height: $element.height(), width: $element.width() },
-	            elementOffset = $element.offset(),
-	            inView        = $element.data('inview'),
-	            visiblePartX,
-	            visiblePartY,
-	            visiblePartsMerged;
-	        
-	        // Don't ask me why because I haven't figured out yet:
-	        // viewportOffset and viewportSize are sometimes suddenly null in Firefox 5.
-	        // Even though it sounds weird:
-	        // It seems that the execution of this function is interferred by the onresize/onscroll event
-	        // where viewportOffset and viewportSize are unset
-	        if (!viewportOffset || !viewportSize) {
-	          return;
-	        }
-	        
-	        if (elementOffset.top + elementSize.height > viewportOffset.top &&
-	            elementOffset.top < viewportOffset.top + viewportSize.height &&
-	            elementOffset.left + elementSize.width > viewportOffset.left &&
-	            elementOffset.left < viewportOffset.left + viewportSize.width) {
-	          visiblePartX = (viewportOffset.left > elementOffset.left ?
-	            'right' : (viewportOffset.left + viewportSize.width) < (elementOffset.left + elementSize.width) ?
-	            'left' : 'both');
-	          visiblePartY = (viewportOffset.top > elementOffset.top ?
-	            'bottom' : (viewportOffset.top + viewportSize.height) < (elementOffset.top + elementSize.height) ?
-	            'top' : 'both');
-	          visiblePartsMerged = visiblePartX + "-" + visiblePartY;
-	          if (!inView || inView !== visiblePartsMerged) {
-	            $element.data('inview', visiblePartsMerged).trigger('inview', [true, visiblePartX, visiblePartY]);
-	          }
-	        } else if (inView) {
-	          $element.data('inview', false).trigger('inview', [false]);
-	        }
-	      }
-	    }
-	  }
-	
-	  $(w).bind("scroll resize", function() {
-	    viewportSize = viewportOffset = null;
-	  });
-	  
-	  // IE < 9 scrolls to focused elements without firing the "scroll" event
-	  if (!documentElement.addEventListener && documentElement.attachEvent) {
-	    documentElement.attachEvent("onfocusin", function() {
-	      viewportOffset = null;
-	    });
-	  }
-	
-	  // Use setInterval in order to also make sure this captures elements within
-	  // "overflow:scroll" elements or elements that appeared in the dom tree due to
-	  // dom manipulation and reflow
-	  // old: $(window).scroll(checkInView);
-	  //
-	  // By the way, iOS (iPad, iPhone, ...) seems to not execute, or at least delays
-	  // intervals while the user scrolls. Therefore the inview event might fire a bit late there
-	  setInterval(checkInView, 250);
-	})(jQuery);	

site/styles.css

@@ -1,205 +0,0 @@
-* {
-  padding: 0;
-  margin: 0;
-  color: inherit;
-  -webkit-font-smoothing: antialiased;
-  text-rendering: optimizeLegibility;
-}
-body {
-  color: #282b36;
-  border-top: 8px solid #282b36;
-}
-canvas {
-  font-family: "proxima-nova", sans-serif sans-serif;
-}
-.redBorder,
-.greenBorder,
-.yellowBorder {
-  width: 33.33%;
-  float: left;
-  height: 8px;
-}
-.redBorder {
-  background-color: #f33e6f;
-}
-.greenBorder {
-  background-color: #46bfbd;
-}
-.yellowBorder {
-  background-color: #fdb45c;
-}
-h1 {
-  font-family: "proxima-nova", sans-serif;
-  font-weight: 600;
-  font-size: 55px;
-  margin-top: 40px;
-}
-h2 {
-  font-family: "proxima-nova", sans-serif;
-  font-weight: 400;
-  margin-top: 20px;
-  font-size: 26px;
-  line-height: 40px;
-}
-h3 {
-  font-family: "proxima-nova", sans-serif;
-  font-weight: 600;
-  text-align: center;
-  margin: 20px 0;
-}
-h3 a {
-  color: #2d91ea;
-  text-decoration: none;
-  border-bottom: 1px solid #2d91ea;
-}
-p {
-  font-family: "proxima-nova", sans-serif;
-  line-height: 24px;
-  font-size: 18px;
-  color: #767c8d;
-}
-.btn {
-  display: inline-block;
-  padding: 20px;
-  font-family: "proxima-nova", sans-serif;
-  font-weight: 600;
-  color: #fff;
-  text-decoration: none;
-  border-radius: 5px;
-  text-align: center;
-  font-size: 18px;
-  -webkit-transition-property: background-color box-shadow;
-  -webkit-transition-duration: 200ms;
-  -webkit-transition-timing-function: ease-in-out;
-  -moz-transition-property: background-color box-shadow;
-  -moz-transition-duration: 200ms;
-  -moz-transition-timing-function: ease-in-out;
-  -ms-transition-property: background-color box-shadow;
-  -ms-transition-duration: 200ms;
-  -ms-transition-timing-function: ease-in-out;
-  -o-transition-property: background-color box-shadow;
-  -o-transition-duration: 200ms;
-  -o-transition-timing-function: ease-in-out;
-  transition-property: background-color box-shadow;
-  transition-duration: 200ms;
-  transition-timing-function: ease-in-out;
-}
-.btn:active {
-  box-shadow: inset 1px 1px 4px rgba(0, 0, 0, 0.25);
-}
-.btn.red {
-  background-color: #f33e6f;
-}
-.btn.red:hover {
-  background-color: #f2265d;
-}
-.btn.blue {
-  background-color: #2d91ea;
-}
-.btn.blue:hover {
-  background-color: #1785e6;
-}
-header {
-  width: 978px;
-  margin: 20px auto;
-  display: block;
-  position: relative;
-}
-header hgroup {
-  width: 50%;
-  padding: 20px 0;
-}
-header #introChart {
-  position: absolute;
-  top: 60px;
-  right: 0;
-}
-header .btn {
-  margin-right: 10px;
-  width: 180px;
-}
-footer {
-  width: 100%;
-  text-align: center;
-  background-color: #ebebeb;
-}
-footer p {
-  color: #767c8d;
-  font-family: "proxima-nova", sans-serif;
-  font-size: 16px;
-  padding: 20px 0;
-}
-section {
-  width: 978px;
-  margin: 40px auto;
-}
-section:before {
-  content: '';
-  width: 600px;
-  margin: 0 auto;
-  border-top: 1px solid #ebebeb;
-  height: 20px;
-  display: block;
-}
-section:after {
-  content: "";
-  display: table;
-  clear: both;
-}
-*section {
-  zoom: 1;
-}
-#features article {
-  width: 33.33%;
-  float: left;
-}
-#features article p {
-  display: block;
-  width: 90%;
-  margin: 0 auto;
-  text-align: center;
-}
-#features article img {
-  width: 250px;
-  height: 250px;
-  margin: 0 auto;
-  display: block;
-}
-#examples article {
-  -webkit-transition: opacity 200ms ease-in-out;
-  -ms-transition: opacity 200ms ease-in-out;
-  -moz-transition: opacity 200ms ease-in-out;
-  -o-transition: opacity 200ms ease-in-out;
-  transition: opacity 200ms ease-in-out;
-  position: relative;
-  margin-top: 20px;
-  clear: both;
-}
-#examples article:after {
-  content: '';
-  width: 600px;
-  padding-top: 40px;
-  margin: 40px auto;
-  border-bottom: 1px solid #ebebeb;
-  height: 20px;
-  display: block;
-  clear: both;
-}
-#examples article p {
-  margin-top: 10px;
-}
-#examples article .half {
-  width: 50%;
-  float: left;
-}
-#examples article .canvasWrapper {
-  float: left;
-  width: 449px;
-  padding: 0 20px;
-}
-#examples h3 {
-  clear: both;
-}
-#examples .hidden {
-  opacity: 0;
-}

src/charts/Chart.Bar.js

@@ -0,0 +1,14 @@
+(function() {
+	"use strict";
+
+	var root = this;
+	var Chart = root.Chart;
+	var helpers = Chart.helpers;
+
+	Chart.Bar = function(context, config) {
+		config.type = 'bar';
+
+		return new Chart(context, config);
+	};
+
+}).call(this);

src/charts/Chart.Doughnut.js

@@ -0,0 +1,20 @@
+(function() {
+	"use strict";
+
+	var root = this;
+	var Chart = root.Chart;
+	var helpers = Chart.helpers;
+
+	var defaultConfig = {
+		aspectRatio: 1,
+		legendTemplate: "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i = 0; i < data.datasets[0].data.length; i++){%><li><span style=\"background-color:<%=data.datasets[0].backgroundColor[i]%>\"><%if(data.labels && i < data.labels.length){%><%=data.labels[i]%><%}%></span></li><%}%></ul>",
+	};
+
+	Chart.Doughnut = function(context, config) {
+		config.options = helpers.configMerge(defaultConfig, config.options);
+		config.type = 'doughnut';
+
+		return new Chart(context, config);
+	}
+	
+}).call(this);

src/charts/Chart.Line.js

@@ -0,0 +1,14 @@
+(function() {
+	"use strict";
+
+	var root = this;
+	var Chart = root.Chart;
+	var helpers = Chart.helpers;
+
+	Chart.Line = function(context, config) {
+		config.type = 'line';
+
+		return new Chart(context, config);
+	}
+	
+}).call(this);

src/charts/Chart.PolarArea.js

@@ -0,0 +1,20 @@
+(function() {
+	"use strict";
+
+	var root = this;
+	var Chart = root.Chart;
+	var helpers = Chart.helpers;
+
+	var defaultConfig = {
+		aspectRatio: 1,
+		legendTemplate: "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i = 0; i < data.datasets[0].data.length; i++){%><li><span style=\"background-color:<%=data.datasets[0].backgroundColor[i]%>\"><%if(data.labels && i < data.labels.length){%><%=data.labels[i]%><%}%></span></li><%}%></ul>",
+	};
+
+	Chart.PolarArea = function(context, config) {
+		config.options = helpers.configMerge(defaultConfig, config.options);
+		config.type = 'polarArea';
+
+		return new Chart(context, config);
+	}
+	
+}).call(this);

src/charts/Chart.Radar.js

@@ -0,0 +1,19 @@
+(function() {
+	"use strict";
+
+	var root = this;
+	var Chart = root.Chart;
+	var helpers = Chart.helpers;
+
+	var defaultConfig = {
+		aspectRatio: 1,
+	};
+
+	Chart.Radar = function(context, config) {
+		config.options = helpers.configMerge(defaultConfig, config.options);
+		config.type = 'radar';
+
+		return new Chart(context, config);
+	}
+	
+}).call(this);

src/charts/Chart.Scatter.js

@@ -0,0 +1,39 @@
+(function() {
+	"use strict";
+
+	var root = this;
+	var Chart = root.Chart;
+	var helpers = Chart.helpers;
+
+	var defaultConfig = {
+		hover: {
+			mode: 'single',
+		},
+
+		scales: {
+			xAxes: [{
+				type: "linear", // scatter should not use a category axis
+				position: "bottom",
+				id: "x-axis-1", // need an ID so datasets can reference the scale
+			}],
+			yAxes: [{
+				type: "linear",
+				position: "left",
+				id: "y-axis-1",
+			}],
+		},
+
+		tooltips: {
+			template: "(<%= value.x %>, <%= value.y %>)",
+			multiTemplate: "<%if (datasetLabel){%><%=datasetLabel%>: <%}%>(<%= value.x %>, <%= value.y %>)",
+		},
+
+	};
+
+	Chart.Scatter = function(context, config) {
+		config.options = helpers.configMerge(defaultConfig, config.options);
+		config.type = 'line';
+		return new Chart(context, config);
+	}
+	
+}).call(this);

src/controllers/controller.bar.js

@@ -0,0 +1,352 @@
+(function() {
+
+	"use strict";
+
+	var root = this,
+		Chart = root.Chart,
+		helpers = Chart.helpers;
+
+	Chart.defaults.bar = {
+		hover: {
+			mode: "label"
+		},
+
+		scales: {
+			xAxes: [{
+				type: "category",
+
+				// Specific to Bar Controller
+				categoryPercentage: 0.8,
+				barPercentage: 0.9,
+
+				// grid line settings
+				gridLines: {
+					offsetGridLines: true,
+				},
+			}],
+			yAxes: [{
+				type: "linear",
+			}],
+		},
+	};
+
+	Chart.controllers.bar = function(chart, datasetIndex) {
+		this.initialize.call(this, chart, datasetIndex);
+	};
+
+	helpers.extend(Chart.controllers.bar.prototype, {
+
+		initialize: function(chart, datasetIndex) {
+			this.chart = chart;
+			this.index = datasetIndex;
+			this.linkScales();
+			this.addElements();
+		},
+		updateIndex: function(datasetIndex) {
+			this.index = datasetIndex;
+		},
+		linkScales: function() {
+			if (!this.getDataset().xAxisID) {
+				this.getDataset().xAxisID = this.chart.options.scales.xAxes[0].id;
+			}
+
+			if (!this.getDataset().yAxisID) {
+				this.getDataset().yAxisID = this.chart.options.scales.yAxes[0].id;
+			}
+		},
+
+		getDataset: function() {
+			return this.chart.data.datasets[this.index];
+		},
+
+		getScaleForID: function(scaleID) {
+			return this.chart.scales[scaleID];
+		},
+
+		// Get the number of datasets that display bars. We use this to correctly calculate the bar width
+		getBarCount: function getBarCount() {
+			var barCount = 0;
+
+			helpers.each(this.chart.data.datasets, function(dataset) {
+				if (dataset.type === 'bar') {
+					++barCount;
+				} else if (dataset.type === undefined && this.chart.config.type === 'bar') {
+					++barCount;
+				}
+			}, this);
+
+			return barCount;
+		},
+
+		addElements: function() {
+			this.getDataset().metaData = this.getDataset().metaData || [];
+			helpers.each(this.getDataset().data, function(value, index) {
+				this.getDataset().metaData[index] = this.getDataset().metaData[index] || new Chart.elements.Rectangle({
+					_chart: this.chart.chart,
+					_datasetIndex: this.index,
+					_index: index,
+				});
+			}, this);
+		},
+		addElementAndReset: function(index) {
+			this.getDataset().metaData = this.getDataset().metaData || [];
+			var rectangle = new Chart.elements.Rectangle({
+				_chart: this.chart.chart,
+				_datasetIndex: this.index,
+				_index: index,
+			});
+
+			var numBars = this.getBarCount();
+
+			this.updateElement(rectangle, index, true, numBars);
+			this.getDataset().metaData.splice(index, 0, rectangle);
+		},
+
+		removeElement: function(index) {
+			this.getDataset().metaData.splice(index, 1);
+		},
+
+		reset: function() {
+			this.update(true);
+		},
+
+		buildOrUpdateElements: function buildOrUpdateElements() {
+			var numData = this.getDataset().data.length;
+			var numRectangles = this.getDataset().metaData.length;
+
+			// Make sure that we handle number of datapoints changing
+			if (numData < numRectangles) {
+				// Remove excess bars for data points that have been removed
+				this.getDataset().metaData.splice(numData, numRectangles - numData);
+			} else if (numData > numRectangles) {
+				// Add new elements
+				for (var index = numRectangles; index < numData; ++index) {
+					this.addElementAndReset(index);
+				}
+			}
+		},
+
+		update: function update(reset) {
+			var numBars = this.getBarCount();
+
+			helpers.each(this.getDataset().metaData, function(rectangle, index) {
+				this.updateElement(rectangle, index, reset, numBars);
+			}, this);
+		},
+
+		updateElement: function updateElement(rectangle, index, reset, numBars) {
+
+			var xScale = this.getScaleForID(this.getDataset().xAxisID);
+			var yScale = this.getScaleForID(this.getDataset().yAxisID);
+
+			var yScalePoint;
+
+			if (yScale.min < 0 && yScale.max < 0) {
+				// all less than 0. use the top
+				yScalePoint = yScale.getPixelForValue(yScale.max);
+			} else if (yScale.min > 0 && yScale.max > 0) {
+				yScalePoint = yScale.getPixelForValue(yScale.min);
+			} else {
+				yScalePoint = yScale.getPixelForValue(0);
+			}
+
+			helpers.extend(rectangle, {
+				// Utility
+				_chart: this.chart.chart,
+				_xScale: xScale,
+				_yScale: yScale,
+				_datasetIndex: this.index,
+				_index: index,
+
+
+				// Desired view properties
+				_model: {
+					x: this.calculateBarX(index, this.index),
+					y: reset ? yScalePoint : this.calculateBarY(index, this.index),
+
+					// Tooltip
+					label: this.chart.data.labels[index],
+					datasetLabel: this.getDataset().label,
+
+					// Appearance
+					base: this.calculateBarBase(this.index, index),
+					width: this.calculateBarWidth(numBars),
+					backgroundColor: rectangle.custom && rectangle.custom.backgroundColor ? rectangle.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.rectangle.backgroundColor),
+					borderColor: rectangle.custom && rectangle.custom.borderColor ? rectangle.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.rectangle.borderColor),
+					borderWidth: rectangle.custom && rectangle.custom.borderWidth ? rectangle.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.rectangle.borderWidth),
+				},
+			});
+			rectangle.pivot();
+		},
+
+		calculateBarBase: function(datasetIndex, index) {
+
+			var xScale = this.getScaleForID(this.getDataset().xAxisID);
+			var yScale = this.getScaleForID(this.getDataset().yAxisID);
+
+			var base = 0;
+
+			if (yScale.options.stacked) {
+
+				var value = this.chart.data.datasets[datasetIndex].data[index];
+
+				if (value < 0) {
+					for (var i = 0; i < datasetIndex; i++) {
+						if (this.chart.data.datasets[i].yAxisID === yScale.id) {
+							base += this.chart.data.datasets[i].data[index] < 0 ? this.chart.data.datasets[i].data[index] : 0;
+						}
+					}
+				} else {
+					for (var j = 0; j < datasetIndex; j++) {
+						if (this.chart.data.datasets[j].yAxisID === yScale.id) {
+							base += this.chart.data.datasets[j].data[index] > 0 ? this.chart.data.datasets[j].data[index] : 0;
+						}
+					}
+				}
+
+				return yScale.getPixelForValue(base);
+			}
+
+			base = yScale.getPixelForValue(yScale.min);
+
+			if (yScale.beginAtZero || ((yScale.min <= 0 && yScale.max >= 0) || (yScale.min >= 0 && yScale.max <= 0))) {
+				base = yScale.getPixelForValue(0, 0);
+				//base += yScale.options.gridLines.lineWidth;
+			} else if (yScale.min < 0 && yScale.max < 0) {
+				// All values are negative. Use the top as the base
+				base = yScale.getPixelForValue(yScale.max);
+			}
+
+			return base;
+
+		},
+
+		getRuler: function() {
+
+			var xScale = this.getScaleForID(this.getDataset().xAxisID);
+			var yScale = this.getScaleForID(this.getDataset().yAxisID);
+
+			var datasetCount = !this.chart.isCombo ? this.chart.data.datasets.length : helpers.where(this.chart.data.datasets, function(ds) {
+				return ds.type == 'bar';
+			}).length;
+			var tickWidth = (function() {
+				var min = xScale.getPixelForValue(null, 1) - xScale.getPixelForValue(null, 0);
+				for (var i = 2; i < this.getDataset().data.length; i++) {
+					min = Math.min(xScale.getPixelForValue(null, i) - xScale.getPixelForValue(null, i - 1), min);
+				}
+				return min;
+			}).call(this);
+			var categoryWidth = tickWidth * xScale.options.categoryPercentage;
+			var categorySpacing = (tickWidth - (tickWidth * xScale.options.categoryPercentage)) / 2;
+			var fullBarWidth = categoryWidth / datasetCount;
+			var barWidth = fullBarWidth * xScale.options.barPercentage;
+			var barSpacing = fullBarWidth - (fullBarWidth * xScale.options.barPercentage);
+
+			return {
+				datasetCount: datasetCount,
+				tickWidth: tickWidth,
+				categoryWidth: categoryWidth,
+				categorySpacing: categorySpacing,
+				fullBarWidth: fullBarWidth,
+				barWidth: barWidth,
+				barSpacing: barSpacing,
+			};
+		},
+
+		calculateBarWidth: function() {
+
+			var xScale = this.getScaleForID(this.getDataset().xAxisID);
+			var ruler = this.getRuler();
+
+			if (xScale.options.stacked) {
+				return ruler.categoryWidth;
+			}
+
+			return ruler.barWidth;
+
+		},
+
+
+		calculateBarX: function(index, datasetIndex) {
+
+			var yScale = this.getScaleForID(this.getDataset().yAxisID);
+			var xScale = this.getScaleForID(this.getDataset().xAxisID);
+
+			var ruler = this.getRuler();
+			var leftTick = xScale.getPixelForValue(null, index, datasetIndex, this.chart.isCombo);
+			leftTick -= this.chart.isCombo ? (ruler.tickWidth / 2) : 0;
+
+			if (yScale.options.stacked) {
+				return leftTick + (ruler.categoryWidth / 2) + ruler.categorySpacing;
+			}
+
+			return leftTick +
+				(ruler.barWidth / 2) +
+				ruler.categorySpacing +
+				(ruler.barWidth * datasetIndex) +
+				(ruler.barSpacing / 2) +
+				(ruler.barSpacing * datasetIndex);
+		},
+
+		calculateBarY: function(index, datasetIndex) {
+
+			var xScale = this.getScaleForID(this.getDataset().xAxisID);
+			var yScale = this.getScaleForID(this.getDataset().yAxisID);
+
+			var value = this.getDataset().data[index];
+
+			if (yScale.options.stacked) {
+
+				var sumPos = 0,
+					sumNeg = 0;
+
+				for (var i = 0; i < datasetIndex; i++) {
+					if (this.chart.data.datasets[i].data[index] < 0) {
+						sumNeg += this.chart.data.datasets[i].data[index] || 0;
+					} else {
+						sumPos += this.chart.data.datasets[i].data[index] || 0;
+					}
+				}
+
+				if (value < 0) {
+					return yScale.getPixelForValue(sumNeg + value);
+				} else {
+					return yScale.getPixelForValue(sumPos + value);
+				}
+
+				return yScale.getPixelForValue(value);
+			}
+
+			return yScale.getPixelForValue(value);
+		},
+
+		draw: function(ease) {
+			var easingDecimal = ease || 1;
+			helpers.each(this.getDataset().metaData, function(rectangle, index) {
+				rectangle.transition(easingDecimal).draw();
+			}, this);
+		},
+
+		setHoverStyle: function(rectangle) {
+			var dataset = this.chart.data.datasets[rectangle._datasetIndex];
+			var index = rectangle._index;
+
+			rectangle._model.backgroundColor = rectangle.custom && rectangle.custom.hoverBackgroundColor ? rectangle.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.hoverBackgroundColor, index, helpers.color(rectangle._model.backgroundColor).saturate(0.5).darken(0.1).rgbString());
+			rectangle._model.borderColor = rectangle.custom && rectangle.custom.hoverBorderColor ? rectangle.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.hoverBorderColor, index, helpers.color(rectangle._model.borderColor).saturate(0.5).darken(0.1).rgbString());
+			rectangle._model.borderWidth = rectangle.custom && rectangle.custom.hoverBorderWidth ? rectangle.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.hoverBorderWidth, index, rectangle._model.borderWidth);
+		},
+
+		removeHoverStyle: function(rectangle) {
+			var dataset = this.chart.data.datasets[rectangle._datasetIndex];
+			var index = rectangle._index;
+
+			rectangle._model.backgroundColor = rectangle.custom && rectangle.custom.backgroundColor ? rectangle.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.rectangle.backgroundColor);
+			rectangle._model.borderColor = rectangle.custom && rectangle.custom.borderColor ? rectangle.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.rectangle.borderColor);
+			rectangle._model.borderWidth = rectangle.custom && rectangle.custom.borderWidth ? rectangle.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.rectangle.borderWidth);
+		}
+
+	});
+
+
+
+}).call(this);

src/controllers/controller.doughnut.js

@@ -0,0 +1,211 @@
+(function() {
+	"use strict";
+
+	var root = this,
+		Chart = root.Chart,
+		//Cache a local reference to Chart.helpers
+		helpers = Chart.helpers;
+
+	Chart.defaults.doughnut = {
+		animation: {
+			//Boolean - Whether we animate the rotation of the Doughnut
+			animateRotate: true,
+			//Boolean - Whether we animate scaling the Doughnut from the centre
+			animateScale: false,
+		},
+		hover: {
+			mode: 'single'
+		},
+		//The percentage of the chart that we cut out of the middle.
+		cutoutPercentage: 50,
+	};
+
+	Chart.defaults.pie = helpers.clone(Chart.defaults.doughnut);
+	helpers.extend(Chart.defaults.pie, {
+		cutoutPercentage: 0
+	});
+
+
+	Chart.controllers.doughnut = Chart.controllers.pie = function(chart, datasetIndex) {
+		this.initialize.call(this, chart, datasetIndex);
+	};
+
+	helpers.extend(Chart.controllers.doughnut.prototype, {
+
+		initialize: function(chart, datasetIndex) {
+			this.chart = chart;
+			this.index = datasetIndex;
+			this.linkScales();
+			this.addElements();
+		},
+		updateIndex: function(datasetIndex) {
+			this.index = datasetIndex;
+		},
+		linkScales: function() {
+			// no scales for doughnut
+		},
+
+		getDataset: function() {
+			return this.chart.data.datasets[this.index];
+		},
+
+		addElements: function() {
+			this.getDataset().metaData = this.getDataset().metaData || [];
+			helpers.each(this.getDataset().data, function(value, index) {
+				this.getDataset().metaData[index] = this.getDataset().metaData[index] || new Chart.elements.Arc({
+					_chart: this.chart.chart,
+					_datasetIndex: this.index,
+					_index: index,
+				});
+			}, this);
+		},
+		addElementAndReset: function(index, colorForNewElement) {
+			this.getDataset().metaData = this.getDataset().metaData || [];
+			var arc = new Chart.elements.Arc({
+				_chart: this.chart.chart,
+				_datasetIndex: this.index,
+				_index: index,
+			});
+
+			if (colorForNewElement && helpers.isArray(this.getDataset().backgroundColor)) {
+				this.getDataset().backgroundColor.splice(index, 0, colorForNewElement);
+			}
+
+			// Reset the point
+			this.updateElement(arc, index, true);
+
+			// Add to the points array
+			this.getDataset().metaData.splice(index, 0, arc);
+		},
+		removeElement: function(index) {
+			this.getDataset().metaData.splice(index, 1);
+		},
+		reset: function() {
+			this.update(true);
+		},
+
+		buildOrUpdateElements: function buildOrUpdateElements() {
+			// Make sure we have metaData for each data point
+			var numData = this.getDataset().data.length;
+			var numArcs = this.getDataset().metaData.length;
+
+			// Make sure that we handle number of datapoints changing
+			if (numData < numArcs) {
+				// Remove excess bars for data points that have been removed
+				this.getDataset().metaData.splice(numData, numArcs - numData)
+			} else if (numData > numArcs) {
+				// Add new elements
+				for (var index = numArcs; index < numData; ++index) {
+					this.addElementAndReset(index);
+				}
+			}
+		},
+
+		update: function update(reset) {
+
+			this.chart.outerRadius = Math.max((helpers.min([this.chart.chart.width, this.chart.chart.height]) / 2) - this.chart.options.elements.arc.borderWidth / 2, 0);
+			this.chart.innerRadius = Math.max(this.chart.options.cutoutPercentage ? (this.chart.outerRadius / 100) * (this.chart.options.cutoutPercentage) : 1, 0);
+			this.chart.radiusLength = (this.chart.outerRadius - this.chart.innerRadius) / this.chart.data.datasets.length;
+
+			this.getDataset().total = 0;
+			helpers.each(this.getDataset().data, function(value) {
+				this.getDataset().total += Math.abs(value);
+			}, this);
+
+			this.outerRadius = this.chart.outerRadius - (this.chart.radiusLength * this.index);
+			this.innerRadius = this.outerRadius - this.chart.radiusLength;
+
+			helpers.each(this.getDataset().metaData, function(arc, index) {
+				this.updateElement(arc, index, reset);
+			}, this);
+		},
+		updateElement: function(arc, index, reset) {
+			var resetModel = {
+				x: this.chart.chart.width / 2,
+				y: this.chart.chart.height / 2,
+				startAngle: Math.PI * -0.5, // use - PI / 2 instead of 3PI / 2 to make animations better. It means that we never deal with overflow during the transition function
+				circumference: (this.chart.options.animation.animateRotate) ? 0 : this.calculateCircumference(this.getDataset().data[index]),
+				outerRadius: (this.chart.options.animation.animateScale) ? 0 : this.outerRadius,
+				innerRadius: (this.chart.options.animation.animateScale) ? 0 : this.innerRadius,
+			};
+
+			helpers.extend(arc, {
+				// Utility
+				_chart: this.chart.chart,
+				_datasetIndex: this.index,
+				_index: index,
+
+				// Desired view properties
+				_model: reset ? resetModel : {
+					x: this.chart.chart.width / 2,
+					y: this.chart.chart.height / 2,
+					circumference: this.calculateCircumference(this.getDataset().data[index]),
+					outerRadius: this.outerRadius,
+					innerRadius: this.innerRadius,
+
+					backgroundColor: arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.arc.backgroundColor),
+					hoverBackgroundColor: arc.custom && arc.custom.hoverBackgroundColor ? arc.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().hoverBackgroundColor, index, this.chart.options.elements.arc.hoverBackgroundColor),
+					borderWidth: arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.arc.borderWidth),
+					borderColor: arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.arc.borderColor),
+
+					label: helpers.getValueAtIndexOrDefault(this.getDataset().label, index, this.chart.data.labels[index])
+				},
+			});
+
+			if (!reset) {
+
+				if (index === 0) {
+					arc._model.startAngle = Math.PI * -0.5; // use - PI / 2 instead of 3PI / 2 to make animations better. It means that we never deal with overflow during the transition function
+				} else {
+					arc._model.startAngle = this.getDataset().metaData[index - 1]._model.endAngle;
+				}
+
+				arc._model.endAngle = arc._model.startAngle + arc._model.circumference;
+
+
+				//Check to see if it's the last arc, if not get the next and update its start angle
+				if (index < this.getDataset().data.length - 1) {
+					this.getDataset().metaData[index + 1]._model.startAngle = arc._model.endAngle;
+				}
+			}
+
+			arc.pivot();
+		},
+
+		draw: function(ease) {
+			var easingDecimal = ease || 1;
+			helpers.each(this.getDataset().metaData, function(arc, index) {
+				arc.transition(easingDecimal).draw();
+			}, this);
+		},
+
+		setHoverStyle: function(arc) {
+			var dataset = this.chart.data.datasets[arc._datasetIndex];
+			var index = arc._index;
+
+			arc._model.backgroundColor = arc.custom && arc.custom.hoverBackgroundColor ? arc.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.hoverBackgroundColor, index, helpers.color(arc._model.backgroundColor).saturate(0.5).darken(0.1).rgbString());
+			arc._model.borderColor = arc.custom && arc.custom.hoverBorderColor ? arc.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.hoverBorderColor, index, helpers.color(arc._model.borderColor).saturate(0.5).darken(0.1).rgbString());
+			arc._model.borderWidth = arc.custom && arc.custom.hoverBorderWidth ? arc.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.hoverBorderWidth, index, arc._model.borderWidth);
+		},
+
+		removeHoverStyle: function(arc) {
+			var dataset = this.chart.data.datasets[arc._datasetIndex];
+			var index = arc._index;
+
+			arc._model.backgroundColor = arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.arc.backgroundColor);
+			arc._model.borderColor = arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.arc.borderColor);
+			arc._model.borderWidth = arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.arc.borderWidth);
+		},
+
+		calculateCircumference: function(value) {
+			if (this.getDataset().total > 0) {
+				return (Math.PI * 1.999999) * (value / this.getDataset().total);
+			} else {
+				return 0;
+			}
+		},
+
+	});
+
+
+}).call(this);

src/controllers/controller.line.js

@@ -0,0 +1,289 @@
+(function() {
+
+	"use strict";
+
+	var root = this,
+		Chart = root.Chart,
+		helpers = Chart.helpers;
+
+	Chart.defaults.line = {
+		hover: {
+			mode: "label"
+		},
+
+		scales: {
+			xAxes: [{
+				type: "category",
+				id: 'x-axis-0'
+			}],
+			yAxes: [{
+				type: "linear",
+				id: 'y-axis-0'
+			}],
+		},
+	};
+
+
+	Chart.controllers.line = function(chart, datasetIndex) {
+		this.initialize.call(this, chart, datasetIndex);
+	};
+
+	helpers.extend(Chart.controllers.line.prototype, {
+
+		initialize: function(chart, datasetIndex) {
+			this.chart = chart;
+			this.index = datasetIndex;
+			this.linkScales();
+			this.addElements();
+		},
+		updateIndex: function(datasetIndex) {
+			this.index = datasetIndex;
+		},
+
+		linkScales: function() {
+			if (!this.getDataset().xAxisID) {
+				this.getDataset().xAxisID = this.chart.options.scales.xAxes[0].id;
+			}
+
+			if (!this.getDataset().yAxisID) {
+				this.getDataset().yAxisID = this.chart.options.scales.yAxes[0].id;
+			}
+		},
+
+		getDataset: function() {
+			return this.chart.data.datasets[this.index];
+		},
+
+		getScaleForId: function(scaleID) {
+			return this.chart.scales[scaleID];
+		},
+
+		addElements: function() {
+
+			this.getDataset().metaData = this.getDataset().metaData || [];
+
+			this.getDataset().metaDataset = this.getDataset().metaDataset || new Chart.elements.Line({
+				_chart: this.chart.chart,
+				_datasetIndex: this.index,
+				_points: this.getDataset().metaData,
+			});
+
+			helpers.each(this.getDataset().data, function(value, index) {
+				this.getDataset().metaData[index] = this.getDataset().metaData[index] || new Chart.elements.Point({
+					_chart: this.chart.chart,
+					_datasetIndex: this.index,
+					_index: index,
+				});
+			}, this);
+		},
+		addElementAndReset: function(index) {
+			this.getDataset().metaData = this.getDataset().metaData || [];
+			var point = new Chart.elements.Point({
+				_chart: this.chart.chart,
+				_datasetIndex: this.index,
+				_index: index,
+			});
+
+			// Reset the point
+			this.updateElement(point, index, true);
+
+			// Add to the points array
+			this.getDataset().metaData.splice(index, 0, point);
+
+			// Make sure bezier control points are updated
+			this.updateBezierControlPoints();
+		},
+		removeElement: function(index) {
+			this.getDataset().metaData.splice(index, 1);
+		},
+
+		reset: function() {
+			this.update(true);
+		},
+
+		buildOrUpdateElements: function buildOrUpdateElements() {
+			// Handle the number of data points changing
+			var numData = this.getDataset().data.length;
+			var numPoints = this.getDataset().metaData.length;
+
+			// Make sure that we handle number of datapoints changing
+			if (numData < numPoints) {
+				// Remove excess bars for data points that have been removed
+				this.getDataset().metaData.splice(numData, numPoints - numData);
+			} else if (numData > numPoints) {
+				// Add new elements
+				for (var index = numPoints; index < numData; ++index) {
+					this.addElementAndReset(index);
+				}
+			}
+		},
+
+		update: function update(reset) {
+			var line = this.getDataset().metaDataset;
+			var points = this.getDataset().metaData;
+
+			var yScale = this.getScaleForId(this.getDataset().yAxisID);
+			var xScale = this.getScaleForId(this.getDataset().xAxisID);
+			var scaleBase;
+
+			if (yScale.min < 0 && yScale.max < 0) {
+				scaleBase = yScale.getPixelForValue(yScale.max);
+			} else if (yScale.min > 0 && yScale.max > 0) {
+				scaleBase = yScale.getPixelForValue(yScale.min);
+			} else {
+				scaleBase = yScale.getPixelForValue(0);
+			}
+
+			// Update Line
+			helpers.extend(line, {
+				// Utility
+				_scale: yScale,
+				_datasetIndex: this.index,
+				// Data
+				_children: points,
+				// Model
+				_model: {
+					// Appearance
+					tension: line.custom && line.custom.tension ? line.custom.tension : (this.getDataset().tension || this.chart.options.elements.line.tension),
+					backgroundColor: line.custom && line.custom.backgroundColor ? line.custom.backgroundColor : (this.getDataset().backgroundColor || this.chart.options.elements.line.backgroundColor),
+					borderWidth: line.custom && line.custom.borderWidth ? line.custom.borderWidth : (this.getDataset().borderWidth || this.chart.options.elements.line.borderWidth),
+					borderColor: line.custom && line.custom.borderColor ? line.custom.borderColor : (this.getDataset().borderColor || this.chart.options.elements.line.borderColor),
+					borderCapStyle: line.custom && line.custom.borderCapStyle ? line.custom.borderCapStyle : (this.getDataset().borderCapStyle || this.chart.options.elements.line.borderCapStyle),
+					borderDash: line.custom && line.custom.borderDash ? line.custom.borderDash : (this.getDataset().borderDash || this.chart.options.elements.line.borderDash),
+					borderDashOffset: line.custom && line.custom.borderDashOffset ? line.custom.borderDashOffset : (this.getDataset().borderDashOffset || this.chart.options.elements.line.borderDashOffset),
+					borderJoinStyle: line.custom && line.custom.borderJoinStyle ? line.custom.borderJoinStyle : (this.getDataset().borderJoinStyle || this.chart.options.elements.line.borderJoinStyle),
+					fill: line.custom && line.custom.fill ? line.custom.fill : (this.getDataset().fill !== undefined ? this.getDataset().fill : this.chart.options.elements.line.fill),
+					skipNull: this.getDataset().skipNull !== undefined ? this.getDataset().skipNull : this.chart.options.elements.line.skipNull,
+					drawNull: this.getDataset().drawNull !== undefined ? this.getDataset().drawNull : this.chart.options.elements.line.drawNull,
+					// Scale
+					scaleTop: yScale.top,
+					scaleBottom: yScale.bottom,
+					scaleZero: scaleBase,
+				},
+			});
+			line.pivot();
+
+			// Update Points
+			helpers.each(points, function(point, index) {
+				this.updateElement(point, index, reset);
+			}, this);
+
+			this.updateBezierControlPoints();
+		},
+
+		updateElement: function(point, index, reset) {
+			var yScale = this.getScaleForId(this.getDataset().yAxisID);
+			var xScale = this.getScaleForId(this.getDataset().xAxisID);
+			var scaleBase;
+
+			if (yScale.min < 0 && yScale.max < 0) {
+				scaleBase = yScale.getPixelForValue(yScale.max);
+			} else if (yScale.min > 0 && yScale.max > 0) {
+				scaleBase = yScale.getPixelForValue(yScale.min);
+			} else {
+				scaleBase = yScale.getPixelForValue(0);
+			}
+
+			helpers.extend(point, {
+				// Utility
+				_chart: this.chart.chart,
+				_xScale: xScale,
+				_yScale: yScale,
+				_datasetIndex: this.index,
+				_index: index,
+
+				// Desired view properties
+				_model: {
+					x: xScale.getPixelForValue(this.getDataset().data[index], index, this.index, this.chart.isCombo),
+					y: reset ? scaleBase : yScale.getPixelForValue(this.getDataset().data[index], index, this.index),
+					// Appearance
+					tension: point.custom && point.custom.tension ? point.custom.tension : (this.getDataset().tension || this.chart.options.elements.line.tension),
+					radius: point.custom && point.custom.radius ? point.custom.radius : helpers.getValueAtIndexOrDefault(this.getDataset().radius, index, this.chart.options.elements.point.radius),
+					backgroundColor: point.custom && point.custom.backgroundColor ? point.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBackgroundColor, index, this.chart.options.elements.point.backgroundColor),
+					borderColor: point.custom && point.custom.borderColor ? point.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderColor, index, this.chart.options.elements.point.borderColor),
+					borderWidth: point.custom && point.custom.borderWidth ? point.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderWidth, index, this.chart.options.elements.point.borderWidth),
+					skip: point.custom && point.custom.skip ? point.custom.skip : this.getDataset().data[index] === null,
+
+					// Tooltip
+					hitRadius: point.custom && point.custom.hitRadius ? point.custom.hitRadius : helpers.getValueAtIndexOrDefault(this.getDataset().hitRadius, index, this.chart.options.elements.point.hitRadius),
+				},
+			});
+		},
+
+		updateBezierControlPoints: function() {
+			// Update bezier control points
+			helpers.each(this.getDataset().metaData, function(point, index) {
+				var controlPoints = helpers.splineCurve(
+					helpers.previousItem(this.getDataset().metaData, index)._model,
+					point._model,
+					helpers.nextItem(this.getDataset().metaData, index)._model,
+					point._model.tension
+				);
+
+				point._model.controlPointPreviousX = controlPoints.previous.x;
+				point._model.controlPointNextX = controlPoints.next.x;
+
+				// Prevent the bezier going outside of the bounds of the graph
+
+				// Cap outer bezier handles to the upper/lower scale bounds
+				if (controlPoints.next.y > this.chart.chartArea.bottom) {
+					point._model.controlPointNextY = this.chart.chartArea.bottom;
+				} else if (controlPoints.next.y < this.chart.chartArea.top) {
+					point._model.controlPointNextY = this.chart.chartArea.top;
+				} else {
+					point._model.controlPointNextY = controlPoints.next.y;
+				}
+
+				// Cap inner bezier handles to the upper/lower scale bounds
+				if (controlPoints.previous.y > this.chart.chartArea.bottom) {
+					point._model.controlPointPreviousY = this.chart.chartArea.bottom;
+				} else if (controlPoints.previous.y < this.chart.chartArea.top) {
+					point._model.controlPointPreviousY = this.chart.chartArea.top;
+				} else {
+					point._model.controlPointPreviousY = controlPoints.previous.y;
+				}
+
+				// Now pivot the point for animation
+				point.pivot();
+			}, this);
+		},
+
+		draw: function(ease) {
+			var easingDecimal = ease || 1;
+
+			// Transition Point Locations
+			helpers.each(this.getDataset().metaData, function(point, index) {
+				point.transition(easingDecimal);
+			}, this);
+
+			// Transition and Draw the line
+			this.getDataset().metaDataset.transition(easingDecimal).draw();
+
+			// Draw the points
+			helpers.each(this.getDataset().metaData, function(point) {
+				point.draw();
+			});
+		},
+
+		setHoverStyle: function(point) {
+			// Point
+			var dataset = this.chart.data.datasets[point._datasetIndex];
+			var index = point._index;
+
+			point._model.radius = point.custom && point.custom.hoverRadius ? point.custom.hoverRadius : helpers.getValueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius);
+			point._model.backgroundColor = point.custom && point.custom.hoverBackgroundColor ? point.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.color(point._model.backgroundColor).saturate(0.5).darken(0.1).rgbString());
+			point._model.borderColor = point.custom && point.custom.hoverBorderColor ? point.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.color(point._model.borderColor).saturate(0.5).darken(0.1).rgbString());
+			point._model.borderWidth = point.custom && point.custom.hoverBorderWidth ? point.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, point._model.borderWidth);
+		},
+
+		removeHoverStyle: function(point) {
+			var dataset = this.chart.data.datasets[point._datasetIndex];
+			var index = point._index;
+
+			point._model.radius = point.custom && point.custom.radius ? point.custom.radius : helpers.getValueAtIndexOrDefault(this.getDataset().radius, index, this.chart.options.elements.point.radius);
+			point._model.backgroundColor = point.custom && point.custom.backgroundColor ? point.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBackgroundColor, index, this.chart.options.elements.point.backgroundColor);
+			point._model.borderColor = point.custom && point.custom.borderColor ? point.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderColor, index, this.chart.options.elements.point.borderColor);
+			point._model.borderWidth = point.custom && point.custom.borderWidth ? point.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderWidth, index, this.chart.options.elements.point.borderWidth);
+		}
+	});
+}).call(this);

src/controllers/controller.polarArea.js

@@ -0,0 +1,213 @@
+(function() {
+	"use strict";
+
+	var root = this,
+		Chart = root.Chart,
+		//Cache a local reference to Chart.helpers
+		helpers = Chart.helpers;
+
+
+	Chart.defaults.polarArea = {
+
+		scale: {
+			type: "radialLinear",
+			lineArc: true, // so that lines are circular
+		},
+
+		//Boolean - Whether to animate the rotation of the chart
+		animateRotate: true,
+		animateScale: true,
+	};
+
+	Chart.controllers.polarArea = function(chart, datasetIndex) {
+		this.initialize.call(this, chart, datasetIndex);
+	};
+
+	helpers.extend(Chart.controllers.polarArea.prototype, {
+
+		initialize: function(chart, datasetIndex) {
+			this.chart = chart;
+			this.index = datasetIndex;
+			this.linkScales();
+			this.addElements();
+		},
+		updateIndex: function(datasetIndex) {
+			this.index = datasetIndex;
+		},
+
+		linkScales: function() {
+			// no scales for doughnut
+		},
+
+		getDataset: function() {
+			return this.chart.data.datasets[this.index];
+		},
+
+		getScaleForId: function(scaleID) {
+			return this.chart.scales[scaleID];
+		},
+
+		addElements: function() {
+			this.getDataset().metaData = this.getDataset().metaData || [];
+			helpers.each(this.getDataset().data, function(value, index) {
+				this.getDataset().metaData[index] = this.getDataset().metaData[index] || new Chart.elements.Arc({
+					_chart: this.chart.chart,
+					_datasetIndex: this.index,
+					_index: index,
+				});
+			}, this);
+		},
+		addElementAndReset: function(index) {
+			this.getDataset().metaData = this.getDataset().metaData || [];
+			var arc = new Chart.elements.Arc({
+				_chart: this.chart.chart,
+				_datasetIndex: this.index,
+				_index: index,
+			});
+
+			// Reset the point
+			this.updateElement(arc, index, true);
+
+			// Add to the points array
+			this.getDataset().metaData.splice(index, 0, arc);
+		},
+		removeElement: function(index) {
+			this.getDataset().metaData.splice(index, 1);
+		},
+
+		reset: function() {
+			this.update(true);
+		},
+
+		buildOrUpdateElements: function buildOrUpdateElements() {
+			// Handle the number of data points changing
+			var numData = this.getDataset().data.length;
+			var numPoints = this.getDataset().metaData.length;
+
+			// Make sure that we handle number of datapoints changing
+			if (numData < numPoints) {
+				// Remove excess bars for data points that have been removed
+				this.getDataset().metaData.splice(numData, numPoints - numData)
+			} else if (numData > numPoints) {
+				// Add new elements
+				for (var index = numPoints; index < numData; ++index) {
+					this.addElementAndReset(index);
+				}
+			}
+		},
+
+		update: function update(reset) {
+			this.chart.outerRadius = Math.max((helpers.min([this.chart.chart.width, this.chart.chart.height]) - this.chart.options.elements.arc.borderWidth / 2) / 2, 0);
+			this.chart.innerRadius = Math.max(this.chart.options.cutoutPercentage ? (this.chart.outerRadius / 100) * (this.chart.options.cutoutPercentage) : 1, 0);
+			this.chart.radiusLength = (this.chart.outerRadius - this.chart.innerRadius) / this.chart.data.datasets.length;
+
+			this.getDataset().total = 0;
+			helpers.each(this.getDataset().data, function(value) {
+				this.getDataset().total += Math.abs(value);
+			}, this);
+
+			this.outerRadius = this.chart.outerRadius - (this.chart.radiusLength * this.index);
+			this.innerRadius = this.outerRadius - this.chart.radiusLength;
+
+			helpers.each(this.getDataset().metaData, function(arc, index) {
+				this.updateElement(arc, index, reset);
+			}, this);
+		},
+		updateElement: function(arc, index, reset) {
+			var circumference = 1 / this.getDataset().data.length * 2;
+			var startAngle = (-0.5 * Math.PI) + (Math.PI * circumference) * index;
+			var endAngle = startAngle + (circumference * Math.PI);
+
+			var resetModel = {
+				x: this.chart.chart.width / 2,
+				y: this.chart.chart.height / 2,
+				innerRadius: 0,
+				outerRadius: this.chart.options.animateScale ? 0 : this.chart.scale.getDistanceFromCenterForValue(this.getDataset().data[index]),
+				startAngle: this.chart.options.animateRotate ? Math.PI * -0.5 : startAngle,
+				endAngle: this.chart.options.animateRotate ? Math.PI * -0.5 : endAngle,
+
+				backgroundColor: arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.arc.backgroundColor),
+				hoverBackgroundColor: arc.custom && arc.custom.hoverBackgroundColor ? arc.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().hoverBackgroundColor, index, this.chart.options.elements.arc.hoverBackgroundColor),
+				borderWidth: arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.arc.borderWidth),
+				borderColor: arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.arc.borderColor),
+
+				label: helpers.getValueAtIndexOrDefault(this.chart.data.labels, index, this.chart.data.labels[index])
+			};
+
+			helpers.extend(arc, {
+				// Utility
+				_chart: this.chart.chart,
+				_datasetIndex: this.index,
+				_index: index,
+
+				// Desired view properties
+				_model: reset ? resetModel : {
+					x: this.chart.chart.width / 2,
+					y: this.chart.chart.height / 2,
+					innerRadius: 0,
+					outerRadius: this.chart.scale.getDistanceFromCenterForValue(this.getDataset().data[index]),
+					startAngle: startAngle,
+					endAngle: endAngle,
+
+					backgroundColor: arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.arc.backgroundColor),
+					hoverBackgroundColor: arc.custom && arc.custom.hoverBackgroundColor ? arc.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().hoverBackgroundColor, index, this.chart.options.elements.arc.hoverBackgroundColor),
+					borderWidth: arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.arc.borderWidth),
+					borderColor: arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.arc.borderColor),
+
+					label: helpers.getValueAtIndexOrDefault(this.chart.data.labels, index, this.chart.data.labels[index])
+				},
+			});
+
+			arc.pivot();
+		},
+
+		draw: function(ease) {
+			var easingDecimal = ease || 1;
+			helpers.each(this.getDataset().metaData, function(arc, index) {
+				arc.transition(easingDecimal).draw();
+			}, this);
+		},
+
+		setHoverStyle: function(arc) {
+			var dataset = this.chart.data.datasets[arc._datasetIndex];
+			var index = arc._index;
+
+			arc._model.backgroundColor = arc.custom && arc.custom.hoverBackgroundColor ? arc.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.hoverBackgroundColor, index, helpers.color(arc._model.backgroundColor).saturate(0.5).darken(0.1).rgbString());
+			arc._model.borderColor = arc.custom && arc.custom.hoverBorderColor ? arc.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.hoverBorderColor, index, helpers.color(arc._model.borderColor).saturate(0.5).darken(0.1).rgbString());
+			arc._model.borderWidth = arc.custom && arc.custom.hoverBorderWidth ? arc.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.borderWidth, index, arc._model.borderWidth);
+		},
+
+		removeHoverStyle: function(arc) {
+			var dataset = this.chart.data.datasets[arc._datasetIndex];
+			var index = arc._index;
+
+			arc._model.backgroundColor = arc.custom && arc.custom.backgroundColor ? arc.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.arc.backgroundColor);
+			arc._model.borderColor = arc.custom && arc.custom.borderColor ? arc.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.arc.borderColor);
+			arc._model.borderWidth = arc.custom && arc.custom.borderWidth ? arc.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.arc.borderWidth);
+		},
+
+		calculateCircumference: function(value) {
+			if (this.getDataset().total > 0) {
+				return (Math.PI * 2) * (value / this.getDataset().total);
+			} else {
+				return 0;
+			}
+		},
+		updateScaleRange: function() {
+			helpers.extend(this.chart.scale, {
+				size: helpers.min([this.chart.width, this.chart.height]),
+				xCenter: this.chart.width / 2,
+				yCenter: this.chart.height / 2
+			});
+		},
+
+	});
+
+
+
+	return;
+
+
+	Chart.Type.extend({});
+
+}).call(this);

src/controllers/controller.radar.js

@@ -0,0 +1,270 @@
+(function() {
+	"use strict";
+
+	var root = this,
+		Chart = root.Chart,
+		helpers = Chart.helpers;
+
+
+
+	Chart.defaults.radar = {
+		scale: {
+			type: "radialLinear",
+		},
+		elements: {
+			line: {
+				tension: 0, // no bezier in radar
+			}
+		},
+	};
+
+	Chart.controllers.radar = function(chart, datasetIndex) {
+		this.initialize.call(this, chart, datasetIndex);
+	};
+
+
+	helpers.extend(Chart.controllers.radar.prototype, {
+
+		initialize: function(chart, datasetIndex) {
+			this.chart = chart;
+			this.index = datasetIndex;
+			this.linkScales();
+			this.addElements();
+		},
+		updateIndex: function(datasetIndex) {
+			this.index = datasetIndex;
+		},
+
+		linkScales: function() {
+			// No need. Single scale only
+		},
+
+		getDataset: function() {
+			return this.chart.data.datasets[this.index];
+		},
+
+		getScaleForId: function(scaleID) {
+			return this.chart.scales[scaleID];
+		},
+
+		addElements: function() {
+
+			this.getDataset().metaData = this.getDataset().metaData || [];
+
+			this.getDataset().metaDataset = this.getDataset().metaDataset || new Chart.elements.Line({
+				_chart: this.chart.chart,
+				_datasetIndex: this.index,
+				_points: this.getDataset().metaData,
+				_loop: true
+			});
+
+			helpers.each(this.getDataset().data, function(value, index) {
+				this.getDataset().metaData[index] = this.getDataset().metaData[index] || new Chart.elements.Point({
+					_chart: this.chart.chart,
+					_datasetIndex: this.index,
+					_index: index,
+					_model: {
+						x: 0, //xScale.getPixelForValue(null, index, true),
+						y: 0, //this.chartArea.bottom,
+					},
+				});
+			}, this);
+		},
+		addElementAndReset: function(index) {
+			this.getDataset().metaData = this.getDataset().metaData || [];
+			var point = new Chart.elements.Point({
+				_chart: this.chart.chart,
+				_datasetIndex: this.index,
+				_index: index,
+			});
+
+			// Reset the point
+			this.updateElement(point, index, true);
+
+			// Add to the points array
+			this.getDataset().metaData.splice(index, 0, point);
+
+			// Make sure bezier control points are updated
+			this.updateBezierControlPoints();
+		},
+		removeElement: function(index) {
+			this.getDataset().metaData.splice(index, 1);
+		},
+
+		reset: function() {
+			this.update(true);
+		},
+
+		buildOrUpdateElements: function buildOrUpdateElements() {
+			// Handle the number of data points changing
+			var numData = this.getDataset().data.length;
+			var numPoints = this.getDataset().metaData.length;
+
+			// Make sure that we handle number of datapoints changing
+			if (numData < numPoints) {
+				// Remove excess bars for data points that have been removed
+				this.getDataset().metaData.splice(numData, numPoints - numData)
+			} else if (numData > numPoints) {
+				// Add new elements
+				for (var index = numPoints; index < numData; ++index) {
+					this.addElementAndReset(index);
+				}
+			}
+		},
+
+		update: function update(reset) {
+
+			var line = this.getDataset().metaDataset;
+			var points = this.getDataset().metaData;
+
+			var scale = this.chart.scale;
+			var scaleBase;
+
+			if (scale.min < 0 && scale.max < 0) {
+				scaleBase = scale.getPointPositionForValue(0, scale.max);
+			} else if (scale.min > 0 && scale.max > 0) {
+				scaleBase = scale.getPointPositionForValue(0, scale.min);
+			} else {
+				scaleBase = scale.getPointPositionForValue(0, 0);
+			}
+
+			helpers.extend(this.getDataset().metaDataset, {
+				// Utility
+				_datasetIndex: this.index,
+				// Data
+				_children: this.getDataset().metaData,
+				// Model
+				_model: {
+					// Appearance
+					tension: this.getDataset().tension || this.chart.options.elements.line.tension,
+					backgroundColor: this.getDataset().backgroundColor || this.chart.options.elements.line.backgroundColor,
+					borderWidth: this.getDataset().borderWidth || this.chart.options.elements.line.borderWidth,
+					borderColor: this.getDataset().borderColor || this.chart.options.elements.line.borderColor,
+					fill: this.getDataset().fill !== undefined ? this.getDataset().fill : this.chart.options.elements.line.fill, // use the value from the this.getDataset() if it was provided. else fall back to the default
+					skipNull: this.getDataset().skipNull !== undefined ? this.getDataset().skipNull : this.chart.options.elements.line.skipNull,
+					drawNull: this.getDataset().drawNull !== undefined ? this.getDataset().drawNull : this.chart.options.elements.line.drawNull,
+
+					// Scale
+					scaleTop: scale.top,
+					scaleBottom: scale.bottom,
+					scaleZero: scaleBase,
+				},
+			});
+
+			this.getDataset().metaDataset.pivot();
+
+			// Update Points
+			helpers.each(points, function(point, index) {
+				this.updateElement(point, index, reset);
+			}, this);
+
+
+			// Update bezier control points
+			this.updateBezierControlPoints();
+		},
+		updateElement: function(point, index, reset) {
+			var pointPosition = this.chart.scale.getPointPositionForValue(index, this.getDataset().data[index]);
+
+			helpers.extend(point, {
+				// Utility
+				_datasetIndex: this.index,
+				_index: index,
+
+				// Desired view properties
+				_model: {
+					x: reset ? this.chart.scale.xCenter : pointPosition.x, // value not used in dataset scale, but we want a consistent API between scales
+					y: reset ? this.chart.scale.yCenter : pointPosition.y,
+
+					// Appearance
+					tension: point.custom && point.custom.tension ? point.custom.tension : this.chart.options.elements.line.tension,
+					radius: point.custom && point.custom.radius ? point.custom.pointRadius : helpers.getValueAtIndexOrDefault(this.getDataset().pointRadius, index, this.chart.options.elements.point.radius),
+					backgroundColor: point.custom && point.custom.backgroundColor ? point.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBackgroundColor, index, this.chart.options.elements.point.backgroundColor),
+					borderColor: point.custom && point.custom.borderColor ? point.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderColor, index, this.chart.options.elements.point.borderColor),
+					borderWidth: point.custom && point.custom.borderWidth ? point.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderWidth, index, this.chart.options.elements.point.borderWidth),
+					skip: point.custom && point.custom.skip ? point.custom.skip : this.getDataset().data[index] === null,
+
+					// Tooltip
+					hitRadius: point.custom && point.custom.hitRadius ? point.custom.hitRadius : helpers.getValueAtIndexOrDefault(this.getDataset().hitRadius, index, this.chart.options.elements.point.hitRadius),
+				},
+			});
+		},
+		updateBezierControlPoints: function() {
+			helpers.each(this.getDataset().metaData, function(point, index) {
+				var controlPoints = helpers.splineCurve(
+					helpers.previousItem(this.getDataset().metaData, index, true)._model,
+					point._model,
+					helpers.nextItem(this.getDataset().metaData, index, true)._model,
+					point._model.tension
+				);
+
+				point._model.controlPointPreviousX = controlPoints.previous.x;
+				point._model.controlPointNextX = controlPoints.next.x;
+
+				// Prevent the bezier going outside of the bounds of the graph
+
+				// Cap outer bezier handles to the upper/lower scale bounds
+				if (controlPoints.next.y > this.chart.chartArea.bottom) {
+					point._model.controlPointNextY = this.chart.chartArea.bottom;
+				} else if (controlPoints.next.y < this.chart.chartArea.top) {
+					point._model.controlPointNextY = this.chart.chartArea.top;
+				} else {
+					point._model.controlPointNextY = controlPoints.next.y;
+				}
+
+				// Cap inner bezier handles to the upper/lower scale bounds
+				if (controlPoints.previous.y > this.chart.chartArea.bottom) {
+					point._model.controlPointPreviousY = this.chart.chartArea.bottom;
+				} else if (controlPoints.previous.y < this.chart.chartArea.top) {
+					point._model.controlPointPreviousY = this.chart.chartArea.top;
+				} else {
+					point._model.controlPointPreviousY = controlPoints.previous.y;
+				}
+
+				// Now pivot the point for animation
+				point.pivot();
+			}, this);
+		},
+
+		draw: function(ease) {
+			var easingDecimal = ease || 1;
+
+			// Transition Point Locations
+			helpers.each(this.getDataset().metaData, function(point, index) {
+				point.transition(easingDecimal);
+			}, this);
+
+			// Transition and Draw the line
+			this.getDataset().metaDataset.transition(easingDecimal).draw();
+
+			// Draw the points
+			helpers.each(this.getDataset().metaData, function(point) {
+				point.draw();
+			});
+		},
+
+		setHoverStyle: function(point) {
+			// Point
+			var dataset = this.chart.data.datasets[point._datasetIndex];
+			var index = point._index;
+
+			point._model.radius = point.custom && point.custom.radius ? point.custom.radius : helpers.getValueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius);
+			point._model.backgroundColor = point.custom && point.custom.hoverBackgroundColor ? point.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.color(point._model.backgroundColor).saturate(0.5).darken(0.1).rgbString());
+			point._model.borderColor = point.custom && point.custom.hoverBorderColor ? point.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.color(point._model.borderColor).saturate(0.5).darken(0.1).rgbString());
+			point._model.borderWidth = point.custom && point.custom.hoverBorderWidth ? point.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.pointBorderWidth, index, point._model.borderWidth);
+		},
+
+		removeHoverStyle: function(point) {
+			var dataset = this.chart.data.datasets[point._datasetIndex];
+			var index = point._index;
+
+			point._model.radius = point.custom && point.custom.radius ? point.custom.radius : helpers.getValueAtIndexOrDefault(this.getDataset().radius, index, this.chart.options.elements.point.radius);
+			point._model.backgroundColor = point.custom && point.custom.backgroundColor ? point.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBackgroundColor, index, this.chart.options.elements.point.backgroundColor);
+			point._model.borderColor = point.custom && point.custom.borderColor ? point.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderColor, index, this.chart.options.elements.point.borderColor);
+			point._model.borderWidth = point.custom && point.custom.borderWidth ? point.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().pointBorderWidth, index, this.chart.options.elements.point.borderWidth);
+		}
+
+	});
+
+
+
+}).call(this);

src/core/core.animation.js

@@ -0,0 +1,112 @@
+(function() {
+
+	"use strict";
+
+	var root = this,
+		Chart = root.Chart,
+		helpers = Chart.helpers;
+
+	Chart.defaults.global.animation = {
+		duration: 1000,
+		easing: "easeOutQuart",
+		onProgress: function() {},
+		onComplete: function() {},
+	};
+
+	Chart.Animation = Chart.Element.extend({
+		currentStep: null, // the current animation step
+		numSteps: 60, // default number of steps
+		easing: "", // the easing to use for this animation
+		render: null, // render function used by the animation service
+
+		onAnimationProgress: null, // user specified callback to fire on each step of the animation 
+		onAnimationComplete: null, // user specified callback to fire when the animation finishes
+	});
+
+	Chart.animationService = {
+		frameDuration: 17,
+		animations: [],
+		dropFrames: 0,
+		addAnimation: function(chartInstance, animationObject, duration, lazy) {
+
+			if (!lazy) {
+				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 = this.dropFrames % 1;
+			}
+
+			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 dropFrames = (endTime - startTime) / this.frameDuration;
+
+			this.dropFrames += dropFrames;
+
+			// Do we have more stuff to animate?
+			if (this.animations.length > 0) {
+				helpers.requestAnimFrame.call(window, this.digestWrapper);
+			}
+		}
+	};
+
+}).call(this);

src/core/core.controller.js

@@ -0,0 +1,485 @@
+(function() {
+
+	"use strict";
+
+	//Declare root variable - window in the browser, global on the server
+	var root = this,
+		previous = root.Chart,
+		helpers = Chart.helpers;
+
+
+	//Create a dictionary of chart types, to allow for extension of existing types
+	Chart.types = {};
+
+	//Store a reference to each instance - allowing us to globally resize chart instances on window resize.
+	//Destroy method on the chart will remove the instance of the chart from this reference.
+	Chart.instances = {};
+
+	// Controllers available for dataset visualization eg. bar, line, slice, etc.
+	Chart.controllers = {};
+
+	// The main controller of a chart
+	Chart.Controller = function(instance) {
+
+		this.chart = instance;
+		this.config = instance.config;
+		this.data = this.config.data;
+		this.options = this.config.options = helpers.configMerge(Chart.defaults.global, Chart.defaults[this.config.type], this.config.options || {});
+		this.id = helpers.uid();
+
+		//Add the chart instance to the global namespace
+		Chart.instances[this.id] = this;
+
+		if (this.options.responsive) {
+			// Silent resize before chart draws
+			this.resize(true);
+		}
+
+		this.initialize.call(this);
+
+		return this;
+	};
+
+	helpers.extend(Chart.Controller.prototype, {
+
+		initialize: function initialize() {
+
+			// TODO
+			// If BeforeInit(this) doesn't return false, proceed
+
+			this.bindEvents();
+
+			// Make sure controllers are built first so that each dataset is bound to an axis before the scales
+			// are built
+			this.ensureScalesHaveIDs();
+			this.buildOrUpdateControllers();
+			this.buildScales();
+			this.resetElements();
+			this.initToolTip();
+			this.update();
+
+			// TODO
+			// If AfterInit(this) doesn't return false, proceed
+
+			return this;
+		},
+
+		clear: function clear() {
+			helpers.clear(this.chart);
+			return this;
+		},
+
+		stop: function stop() {
+			// Stops any current animation loop occuring
+			Chart.animationService.cancelAnimation(this);
+			return this;
+		},
+
+		resize: function resize(silent) {
+			this.stop();
+			var canvas = this.chart.canvas;
+			var newWidth = helpers.getMaximumWidth(this.chart.canvas);
+			var newHeight = (this.options.maintainAspectRatio && isNaN(this.chart.aspectRatio) === false && isFinite(this.chart.aspectRatio) && this.chart.aspectRatio !== 0) ? newWidth / this.chart.aspectRatio : helpers.getMaximumHeight(this.chart.canvas);
+
+			canvas.width = this.chart.width = newWidth;
+			canvas.height = this.chart.height = newHeight;
+
+			helpers.retinaScale(this.chart);
+
+			if (!silent) {
+				this.update(this.options.responsiveAnimationDuration);
+			}
+
+			return this;
+		},
+		ensureScalesHaveIDs: function ensureScalesHaveIDs() {
+			var defaultXAxisID = 'x-axis-';
+			var defaultYAxisID = 'y-axis-';
+
+			if (this.options.scales) {
+				if (this.options.scales.xAxes && this.options.scales.xAxes.length) {
+					helpers.each(this.options.scales.xAxes, function(xAxisOptions, index) {
+						xAxisOptions.id = xAxisOptions.id || (defaultXAxisID + index);
+					}, this);
+				}
+
+				if (this.options.scales.yAxes && this.options.scales.yAxes.length) {
+					// Build the y axes
+					helpers.each(this.options.scales.yAxes, function(yAxisOptions, index) {
+						yAxisOptions.id = yAxisOptions.id || (defaultYAxisID + index);
+					}, this);
+				}
+			}
+		},
+		buildScales: function buildScales() {
+			// Map of scale ID to scale object so we can lookup later 
+			this.scales = {};
+
+			// Build the x axes
+			if (this.options.scales) {
+				if (this.options.scales.xAxes && this.options.scales.xAxes.length) {
+					helpers.each(this.options.scales.xAxes, function(xAxisOptions, index) {
+						var ScaleClass = Chart.scaleService.getScaleConstructor(xAxisOptions.type);
+						var scale = new ScaleClass({
+							ctx: this.chart.ctx,
+							options: xAxisOptions,
+							data: this.data,
+							id: xAxisOptions.id,
+						});
+
+						this.scales[scale.id] = scale;
+					}, this);
+				}
+
+				if (this.options.scales.yAxes && this.options.scales.yAxes.length) {
+					// Build the y axes
+					helpers.each(this.options.scales.yAxes, function(yAxisOptions, index) {
+						var ScaleClass = Chart.scaleService.getScaleConstructor(yAxisOptions.type);
+						var scale = new ScaleClass({
+							ctx: this.chart.ctx,
+							options: yAxisOptions,
+							data: this.data,
+							id: yAxisOptions.id,
+						});
+
+						this.scales[scale.id] = scale;
+					}, this);
+				}
+			}
+			if (this.options.scale) {
+				// Build radial axes
+				var ScaleClass = Chart.scaleService.getScaleConstructor(this.options.scale.type);
+				var scale = new ScaleClass({
+					ctx: this.chart.ctx,
+					options: this.options.scale,
+					data: this.data,
+					chart: this.chart,
+				});
+
+				this.scale = scale;
+
+				this.scales['radialScale'] = scale;
+			}
+
+			Chart.scaleService.update(this, this.chart.width, this.chart.height);
+		},
+
+		buildOrUpdateControllers: function buildOrUpdateControllers(resetNewControllers) {
+			var types = [];
+			helpers.each(this.data.datasets, function(dataset, datasetIndex) {
+				if (!dataset.type) {
+					dataset.type = this.config.type;
+				}
+				var type = dataset.type;
+				types.push(type);
+				if (dataset.controller) {
+					dataset.controller.updateIndex(datasetIndex);
+					return;
+				}
+				dataset.controller = new Chart.controllers[type](this, datasetIndex);
+
+				if (resetNewControllers) {
+					dataset.controller.reset();
+				}
+			}, this);
+			if (types.length > 1) {
+				for (var i = 1; i < types.length; i++) {
+					if (types[i] != types[i - 1]) {
+						this.isCombo = true;
+						break;
+					}
+				}
+			}
+		},
+
+		resetElements: function resetElements() {
+			helpers.each(this.data.datasets, function(dataset, datasetIndex) {
+				dataset.controller.reset();
+			}, this);
+		},
+
+		update: function update(animationDuration, lazy) {
+			Chart.scaleService.update(this, this.chart.width, this.chart.height);
+
+			// Make sure dataset controllers are updated and new controllers are reset
+			this.buildOrUpdateControllers(true);
+
+			// Make sure all dataset controllers have correct meta data counts
+			helpers.each(this.data.datasets, function(dataset, datasetIndex) {
+				dataset.controller.buildOrUpdateElements();
+			}, this);
+
+			// This will loop through any data and do the appropriate element update for the type
+			helpers.each(this.data.datasets, function(dataset, datasetIndex) {
+				dataset.controller.update();
+			}, this);
+			this.render(animationDuration, lazy);
+		},
+
+		render: function render(duration, lazy) {
+
+			if ((typeof duration !== 'undefined' && duration !== 0) || (typeof duration == 'undefined' && this.options.animation.duration !== 0)) {
+				var animation = new Chart.Animation();
+				animation.numSteps = (duration || this.options.animation.duration) / 16.66; //60 fps
+				animation.easing = this.options.animation.easing;
+
+				// render function
+				animation.render = function(chartInstance, animationObject) {
+					var easingFunction = helpers.easingEffects[animationObject.easing];
+					var stepDecimal = animationObject.currentStep / animationObject.numSteps;
+					var easeDecimal = easingFunction(stepDecimal);
+
+					chartInstance.draw(easeDecimal, stepDecimal, animationObject.currentStep);
+				};
+
+				// user events
+				animation.onAnimationProgress = this.options.onAnimationProgress;
+				animation.onAnimationComplete = this.options.onAnimationComplete;
+
+				Chart.animationService.addAnimation(this, animation, duration, lazy);
+			} else {
+				this.draw();
+				if (this.options.onAnimationComplete && this.options.onAnimationComplete.call) {
+					this.options.onAnimationComplete.call(this);
+				}
+			}
+			return this;
+		},
+
+		draw: function(ease) {
+			var easingDecimal = ease || 1;
+			this.clear();
+
+			// Draw all the scales
+			helpers.each(this.scales, function(scale) {
+				scale.draw(this.chartArea);
+			}, this);
+			if (this.scale) {
+				this.scale.draw();
+			}
+
+			// Draw each dataset via its respective controller (reversed to support proper line stacking)
+			helpers.each(this.data.datasets, function(dataset, datasetIndex) {
+				dataset.controller.draw(ease);
+			}, this);
+
+			// Finally draw the tooltip
+			this.tooltip.transition(easingDecimal).draw();
+		},
+
+		// Get the single element that was clicked on
+		// @return : An object containing the dataset index and element index of the matching element. Also contains the rectangle that was draw
+		getElementAtEvent: function(e) {
+
+			var eventPosition = helpers.getRelativePosition(e, this.chart);
+			var elementsArray = [];
+
+			helpers.each(this.data.datasets, function(dataset, datasetIndex) {
+				helpers.each(dataset.metaData, function(element, index) {
+					if (element.inRange(eventPosition.x, eventPosition.y)) {
+						elementsArray.push(element);
+						return elementsArray;
+					}
+				}, this);
+			}, this);
+
+			return elementsArray;
+		},
+
+		getElementsAtEvent: function(e) {
+			var eventPosition = helpers.getRelativePosition(e, this.chart);
+			var elementsArray = [];
+
+			helpers.each(this.data.datasets, function(dataset, datasetIndex) {
+				helpers.each(dataset.metaData, function(element, index) {
+					if (element.inLabelRange(eventPosition.x, eventPosition.y)) {
+						elementsArray.push(element);
+					}
+				}, this);
+			}, this);
+
+			return elementsArray;
+		},
+
+		getDatasetAtEvent: function(e) {
+			var eventPosition = helpers.getRelativePosition(e, this.chart);
+			var elementsArray = [];
+
+			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].inLabelRange(eventPosition.x, eventPosition.y)) {
+						helpers.each(this.data.datasets[datasetIndex].metaData, function(element, index) {
+							elementsArray.push(element);
+						}, this);
+					}
+				}
+			}
+
+			return elementsArray.length ? elementsArray : [];
+		},
+
+		generateLegend: function generateLegend() {
+			return helpers.template(this.options.legendTemplate, this);
+		},
+
+		destroy: function destroy() {
+			this.clear();
+			helpers.unbindEvents(this, this.events);
+			helpers.removeResizeListener(this.chart.canvas.parentNode);
+
+			// Reset canvas height/width attributes
+			var canvas = this.chart.canvas;
+			canvas.width = this.chart.width;
+			canvas.height = this.chart.height;
+
+			// if we scaled the canvas in response to a devicePixelRatio !== 1, we need to undo that transform here
+			if (this.chart.originalDevicePixelRatio !== undefined) {
+				this.chart.ctx.scale(1 / this.chart.originalDevicePixelRatio, 1 / this.chart.originalDevicePixelRatio);
+			}
+
+			// Reset to the old style since it may have been changed by the device pixel ratio changes
+			canvas.style.width = this.chart.originalCanvasStyleWidth;
+			canvas.style.height = this.chart.originalCanvasStyleHeight;
+
+			delete Chart.instances[this.id];
+		},
+
+		toBase64Image: function toBase64Image() {
+			return this.chart.canvas.toDataURL.apply(this.chart.canvas, arguments);
+		},
+
+		initToolTip: function initToolTip() {
+			this.tooltip = new Chart.Tooltip({
+				_chart: this.chart,
+				_data: this.data,
+				_options: this.options,
+			}, this);
+		},
+
+		bindEvents: function bindEvents() {
+			helpers.bindEvents(this, this.options.events, function(evt) {
+				this.eventHandler(evt);
+			});
+		},
+		eventHandler: function eventHandler(e) {
+			this.lastActive = this.lastActive || [];
+
+			// Find Active Elements
+			if (e.type == 'mouseout') {
+				this.active = [];
+			} else {
+				this.active = function() {
+					switch (this.options.hover.mode) {
+						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.hover.onHover) {
+				this.options.hover.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;
+			var index;
+			// Remove styling for last active (even if it may still be active)
+			if (this.lastActive.length) {
+				switch (this.options.hover.mode) {
+					case 'single':
+						this.data.datasets[this.lastActive[0]._datasetIndex].controller.removeHoverStyle(this.lastActive[0], this.lastActive[0]._datasetIndex, this.lastActive[0]._index);
+						break;
+					case 'label':
+					case 'dataset':
+						for (var i = 0; i < this.lastActive.length; i++) {
+							this.data.datasets[this.lastActive[i]._datasetIndex].controller.removeHoverStyle(this.lastActive[i], this.lastActive[i]._datasetIndex, this.lastActive[i]._index);
+						}
+						break;
+					default:
+						// Don't change anything
+				}
+			}
+
+			// Built in hover styling
+			if (this.active.length && this.options.hover.mode) {
+				switch (this.options.hover.mode) {
+					case 'single':
+						this.data.datasets[this.active[0]._datasetIndex].controller.setHoverStyle(this.active[0]);
+						break;
+					case 'label':
+					case 'dataset':
+						for (var i = 0; i < this.active.length; i++) {
+							this.data.datasets[this.active[i]._datasetIndex].controller.setHoverStyle(this.active[i]);
+						}
+						break;
+					default:
+						// Don't change anything
+				}
+			}
+
+
+			// Built in Tooltips
+			if (this.options.tooltips.enabled || this.options.tooltips.custom) {
+
+				// The usual updates
+				this.tooltip.initialize();
+
+				// Active
+				if (this.active.length) {
+					this.tooltip._model.opacity = 1;
+
+					helpers.extend(this.tooltip, {
+						_active: this.active,
+					});
+
+					this.tooltip.update();
+				} else {
+					// Inactive
+					this.tooltip._model.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();
+
+					// We only need to render at this point. Updating will cause scales to be recomputed generating flicker & using more 
+					// memory than necessary.
+					this.render(this.options.hover.animationDuration, true);
+				}
+			}
+
+			// Remember Last Active
+			this.lastActive = this.active;
+			return this;
+		},
+	});
+
+}).call(this);

src/core/core.element.js

@@ -0,0 +1,92 @@
+(function() {
+
+	"use strict";
+
+	//Declare root variable - window in the browser, global on the server
+	var root = this,
+		previous = root.Chart,
+		helpers = Chart.helpers;
+
+	Chart.elements = {};
+
+	Chart.Element = function(configuration) {
+		helpers.extend(this, configuration);
+		this.initialize.apply(this, arguments);
+	};
+	helpers.extend(Chart.Element.prototype, {
+		initialize: function() {},
+		pivot: function() {
+			if (!this._view) {
+				this._view = helpers.clone(this._model);
+			}
+			this._start = helpers.clone(this._view);
+			return this;
+		},
+		transition: function(ease) {
+			if (!this._view) {
+				this._view = helpers.clone(this._model);
+			}
+			if (!this._start) {
+				this.pivot();
+			}
+
+			helpers.each(this._model, function(value, key) {
+
+				if (key[0] === '_' || !this._model.hasOwnProperty(key)) {
+					// Only non-underscored properties
+				}
+
+				// Init if doesn't exist
+				else if (!this._view[key]) {
+					if (typeof value === 'number') {
+						this._view[key] = value * ease;
+					} else {
+						this._view[key] = value || null;
+					}
+				}
+
+				// No unnecessary computations
+				else if (this._model[key] === this._view[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._model[key]), ease);
+						this._view[key] = color.rgbString();
+					} catch (err) {
+						this._view[key] = value;
+					}
+				}
+				// Number transitions
+				else if (typeof value === 'number') {
+					var startVal = this._start[key] !== undefined ? this._start[key] : 0;
+					this._view[key] = ((this._model[key] - startVal) * ease) + startVal;
+				}
+				// Everything else
+				else {
+					this._view[key] = value;
+				}
+
+			}, this);
+
+			if (ease === 1) {
+				delete this._start;
+			}
+			return this;
+		},
+		tooltipPosition: function() {
+			return {
+				x: this._model.x,
+				y: this._model.y
+			};
+		},
+		hasValue: function() {
+			return helpers.isNumber(this._model.x) && helpers.isNumber(this._model.y);
+		}
+	});
+
+	Chart.Element.extend = helpers.inherits;
+
+}).call(this);

src/core/core.helpers.js

@@ -0,0 +1,880 @@
+(function() {
+
+	"use strict";
+
+	//Declare root variable - window in the browser, global on the server
+	var root = this,
+		previous = root.Chart;
+
+	//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, reverse) {
+			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;
+					if (reverse) {
+						for (i = loopable.length - 1; i >= 0; i--) {
+							callback.apply(self, [loopable[i], i].concat(additionalArgs));
+						}
+					} else {
+						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)) {
+					if (helpers.isArray(value)) {
+						objClone[key] = value.slice(0);
+					} else if (typeof value === 'object' && value !== null) {
+						objClone[key] = clone(value);
+					} else {
+						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;
+		},
+		// Need a special merge function to chart configs since they are now grouped
+		configMerge = helpers.configMerge = function(_base) {
+			var base = clone(_base);
+			helpers.each(Array.prototype.slice.call(arguments, 1), function(extension) {
+				helpers.each(extension, function(value, key) {
+					if (extension.hasOwnProperty(key)) {
+						if (key === 'scales') {
+							// Scale config merging is complex. Add out own function here for that
+							base[key] = helpers.scaleMerge(base.hasOwnProperty(key) ? base[key] : {}, value);
+
+						} else if (key === 'scale') {
+							// Used in polar area & radar charts since there is only one scale
+							base[key] = helpers.configMerge(base.hasOwnProperty(key) ? base[key] : {}, Chart.scaleService.getScaleDefaults(value.type), value);
+						} else if (base.hasOwnProperty(key) && helpers.isArray(base[key]) && helpers.isArray(value)) {
+							// In this case we have an array of objects replacing another array. Rather than doing a strict replace,
+							// merge. This allows easy scale option merging
+							var baseArray = base[key];
+
+							helpers.each(value, function(valueObj, index) {
+
+								if (index < baseArray.length) {
+									if (typeof baseArray[index] == 'object' && baseArray[index] !== null && typeof valueObj == 'object' && valueObj !== null) {
+										// Two objects are coming together. Do a merge of them.
+										baseArray[index] = helpers.configMerge(baseArray[index], valueObj);
+									} else {
+										// Just overwrite in this case since there is nothing to merge
+										baseArray[index] = valueObj;
+									}
+								} else {
+									baseArray.push(valueObj); // nothing to merge
+								}
+							});
+
+						} else if (base.hasOwnProperty(key) && typeof base[key] == "object" && base[key] !== null && typeof value == "object") {
+							// If we are overwriting an object with an object, do a merge of the properties.
+							base[key] = helpers.configMerge(base[key], value);
+
+						} else {
+							// can just overwrite the value in this case
+							base[key] = value;
+						}
+					}
+				});
+			});
+
+			return base;
+		},
+		extendDeep = helpers.extendDeep = function(_base) {
+			return _extendDeep.apply(this, arguments);
+
+			function _extendDeep(dst) {
+				helpers.each(arguments, function(obj) {
+					if (obj !== dst) {
+						helpers.each(obj, function(value, key) {
+							if (dst[key] && dst[key].constructor && dst[key].constructor === Object) {
+								_extendDeep(dst[key], value);
+							} else {
+								dst[key] = value;
+							}
+						});
+					}
+				});
+				return dst;
+			}
+		},
+		scaleMerge = helpers.scaleMerge = function(_base, extension) {
+			var base = clone(_base);
+
+			helpers.each(extension, function(value, key) {
+				if (extension.hasOwnProperty(key)) {
+					if (key === 'xAxes' || key === 'yAxes') {
+						// These properties are arrays of items
+						if (base.hasOwnProperty(key)) {
+							helpers.each(value, function(valueObj, index) {
+								if (index >= base[key].length || !base[key][index].type) {
+									base[key].push(helpers.configMerge(valueObj.type ? Chart.scaleService.getScaleDefaults(valueObj.type) : {}, valueObj));
+								} else if (valueObj.type !== base[key][index].type) {
+									// Type changed. Bring in the new defaults before we bring in valueObj so that valueObj can override the correct scale defaults
+									base[key][index] = helpers.configMerge(base[key][index], valueObj.type ? Chart.scaleService.getScaleDefaults(valueObj.type) : {}, valueObj)
+								} else {
+									// Type is the same
+									base[key][index] = helpers.configMerge(base[key][index], valueObj);
+								}
+							});
+						} else {
+							base[key] = [];
+							helpers.each(value, function(valueObj) {
+								base[key].push(helpers.configMerge(valueObj.type ? Chart.scaleService.getScaleDefaults(valueObj.type) : {}, valueObj));
+							});
+						}
+					} else if (base.hasOwnProperty(key) && typeof base[key] == "object" && base[key] !== null && typeof value == "object") {
+						// If we are overwriting an object with an object, do a merge of the properties.
+						base[key] = helpers.configMerge(base[key], value);
+
+					} else {
+						// can just overwrite the value in this case
+						base[key] = value;
+					}
+				}
+			});
+
+			return base;
+		},
+		getValueAtIndexOrDefault = helpers.getValueAtIndexOrDefault = function(value, index, defaultValue) {
+			if (value === undefined || value === null) {
+				return defaultValue;
+			}
+
+			if (helpers.isArray(value)) {
+				return index < value.length ? value[index] : defaultValue;
+			}
+
+			return value;
+		},
+		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 === undefined || startIndex === null) {
+				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 === undefined || startIndex === null) {
+				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);
+		},
+		sign = helpers.sign = function(x) {
+			if (Math.sign) {
+				return Math.sign(x);
+			} else {
+				x = +x; // convert to a number
+				if (x === 0 || isNaN(x)) {
+					return x;
+				}
+				return x > 0 ? 1 : -1;
+			}
+		},
+		log10 = helpers.log10 = function(x) {
+			if (Math.log10) {
+				return Math.log10(x)
+			} else {
+				return Math.log(x) / Math.LN10;
+			}
+		},
+		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.toRadians = function(degrees) {
+			return degrees * (Math.PI / 180);
+		},
+		toDegrees = helpers.toDegrees = function(radians) {
+			return radians * (180 / Math.PI);
+		},
+		// 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.atan2(distanceFromYCenter, distanceFromXCenter);
+
+			if (angle < (-0.5 * Math.PI)) {
+				angle += 2.0 * Math.PI; // make sure the returned angle is in the range of (-PI/2, 3PI/2]
+			}
+
+			return {
+				angle: angle,
+				distance: radialDistanceFromCenter
+			};
+		},
+		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 {
+				previous: {
+					x: MiddlePoint.x - fa * (AfterPoint.x - FirstPoint.x),
+					y: MiddlePoint.y - fa * (AfterPoint.y - FirstPoint.y)
+				},
+				next: {
+					x: MiddlePoint.x + fb * (AfterPoint.x - FirstPoint.x),
+					y: MiddlePoint.y + fb * (AfterPoint.y - FirstPoint.y)
+				}
+			};
+		},
+		nextItem = helpers.nextItem = function(collection, index, loop) {
+			if (loop) {
+				return index >= collection.length - 1 ? collection[0] : collection[index + 1];
+			}
+
+			return index >= collection.length - 1 ? collection[collection.length - 1] : collection[index + 1];
+		},
+		previousItem = helpers.previousItem = function(collection, index, loop) {
+			if (loop) {
+				return index <= 0 ? collection[collection.length - 1] : collection[index - 1];
+			}
+			return index <= 0 ? collection[0] : collection[index - 1];
+		},
+		// Implementation of the nice number algorithm used in determining where axis labels will go
+		niceNum = helpers.niceNum = function(range, round) {
+			var exponent = Math.floor(helpers.log10(range));
+			var fraction = range / Math.pow(10, exponent);
+			var niceFraction;
+
+			if (round) {
+				if (fraction < 1.5) {
+					niceFraction = 1;
+				} else if (fraction < 3) {
+					niceFraction = 2;
+				} else if (fraction < 7) {
+					niceFraction = 5;
+				} else {
+					niceFraction = 10;
+				}
+			} else {
+				if (fraction <= 1.0) {
+					niceFraction = 1;
+				} else if (fraction <= 2) {
+					niceFraction = 2;
+				} else if (fraction <= 5) {
+					niceFraction = 5;
+				} else {
+					niceFraction = 10;
+				}
+			}
+
+			return niceFraction * Math.pow(10, exponent);
+		},
+		/* 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/
+		templateStringCache = {},
+		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);
+			}
+
+			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;
+
+				if (templateStringCache.hasOwnProperty(str)) {
+					fn = templateStringCache[str];
+				} else {
+					// Generate a reusable function that will serve as a template
+					// generator (and which will be cached).
+					var functionCode = "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('');";
+					fn = new Function("obj", functionCode);
+
+					// Cache the result
+					templateStringCache[str] = fn;
+				}
+
+				// Provide some basic currying to the user
+				return data ? fn(data) : fn;
+			}
+			return tmpl(templateString, valuesObject);
+		},
+		/* jshint ignore:end */
+		//--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);
+				};
+		})(),
+		//-- DOM methods
+		getRelativePosition = helpers.getRelativePosition = function(evt, chart) {
+			var mouseX, mouseY;
+			var e = evt.originalEvent || evt,
+				canvas = evt.currentTarget || evt.srcElement,
+				boundingRect = canvas.getBoundingClientRect();
+
+			if (e.touches) {
+				mouseX = e.touches[0].clientX;
+				mouseY = e.touches[0].clientY;
+
+			} else {
+				mouseX = e.clientX;
+				mouseY = e.clientY;
+			}
+
+			// Scale mouse coordinates into canvas coordinates
+			// by following the pattern laid out by 'jerryj' in the comments of 
+			// http://www.html5canvastutorials.com/advanced/html5-canvas-mouse-coordinates/
+
+			// We divide by the current device pixel ratio, because the canvas is scaled up by that amount in each direction. However
+			// the backend model is in unscaled coordinates. Since we are going to deal with our model coordinates, we go back here
+			mouseX = Math.round((mouseX - boundingRect.left) / (boundingRect.right - boundingRect.left) * canvas.width / chart.currentDevicePixelRatio);
+			mouseY = Math.round((mouseY - boundingRect.top) / (boundingRect.bottom - boundingRect.top) * canvas.height / chart.currentDevicePixelRatio);
+
+			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);
+			});
+		},
+		getConstraintWidth = helpers.getConstraintWidth = function(domNode) { // returns Number or undefined if no constraint
+			var constrainedWidth;
+			var constrainedWNode = document.defaultView.getComputedStyle(domNode)['max-width'];
+			var constrainedWContainer = document.defaultView.getComputedStyle(domNode.parentNode)['max-width'];
+			var hasCWNode = constrainedWNode !== null && constrainedWNode !== "none";
+			var hasCWContainer = constrainedWContainer !== null && constrainedWContainer !== "none";
+
+			if (hasCWNode || hasCWContainer) {
+				constrainedWidth = Math.min((hasCWNode ? parseInt(constrainedWNode, 10) : Number.POSITIVE_INFINITY), (hasCWContainer ? parseInt(constrainedWContainer, 10) : Number.POSITIVE_INFINITY));
+			}
+			return constrainedWidth;
+		},
+		getConstraintHeight = helpers.getConstraintHeight = function(domNode) { // returns Number or undefined if no constraint
+
+			var constrainedHeight;
+			var constrainedHNode = document.defaultView.getComputedStyle(domNode)['max-height'];
+			var constrainedHContainer = document.defaultView.getComputedStyle(domNode.parentNode)['max-height'];
+			var hasCHNode = constrainedHNode !== null && constrainedHNode !== "none";
+			var hasCHContainer = constrainedHContainer !== null && constrainedHContainer !== "none";
+
+			if (constrainedHNode || constrainedHContainer) {
+				constrainedHeight = Math.min((hasCHNode ? parseInt(constrainedHNode, 10) : Number.POSITIVE_INFINITY), (hasCHContainer ? parseInt(constrainedHContainer, 10) : Number.POSITIVE_INFINITY));
+			}
+			return constrainedHeight;
+		},
+		getMaximumWidth = helpers.getMaximumWidth = function(domNode) {
+			var container = domNode.parentNode;
+			var padding = parseInt(getStyle(container, 'padding-left')) + parseInt(getStyle(container, 'padding-right'));
+
+			var w = container.clientWidth - padding;
+			var cw = getConstraintWidth(domNode);
+			if (cw !== undefined) {
+				w = Math.min(w, cw);
+			}
+
+			return w;
+		},
+		getMaximumHeight = helpers.getMaximumHeight = function(domNode) {
+			var container = domNode.parentNode;
+			var padding = parseInt(getStyle(container, 'padding-top')) + parseInt(getStyle(container, 'padding-bottom'));
+
+			var h = container.clientHeight - padding;
+			var ch = getConstraintHeight(domNode);
+			if (ch !== undefined) {
+				h = Math.min(h, ch);
+			}
+
+			return h;
+		},
+		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;
+			var width = chart.canvas.width;
+			var height = chart.canvas.height;
+			chart.currentDevicePixelRatio = window.devicePixelRatio || 1;
+
+			if (window.devicePixelRatio !== 1) {
+				ctx.canvas.height = height * window.devicePixelRatio;
+				ctx.canvas.width = width * window.devicePixelRatio;
+				ctx.scale(window.devicePixelRatio, window.devicePixelRatio);
+
+				ctx.canvas.style.width = width + 'px';
+				ctx.canvas.style.height = height + 'px';
+
+				// Store the device pixel ratio so that we can go backwards in `destroy`.
+				// The devicePixelRatio changes with zoom, so there are no guarantees that it is the same
+				// when destroy is called
+				chart.originalDevicePixelRatio = chart.originalDevicePixelRatio || 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);
+		},
+		addResizeListener = helpers.addResizeListener = function(node, callback) {
+			// Hide an iframe before the node
+			var hiddenIframe = document.createElement('iframe');
+			var hiddenIframeClass = 'chartjs-hidden-iframe';
+
+			if (hiddenIframe.classlist) {
+				// can use classlist
+				hiddenIframe.classlist.add(hiddenIframeClass);
+			} else {
+				hiddenIframe.setAttribute('class', hiddenIframeClass)
+			}
+
+			// Set the style
+			hiddenIframe.style.width = '100%';
+			hiddenIframe.style.display = 'block';
+			hiddenIframe.style.border = 0;
+			hiddenIframe.style.height = 0;
+			hiddenIframe.style.margin = 0;
+			hiddenIframe.style.position = 'absolute';
+			hiddenIframe.style.left = 0;
+			hiddenIframe.style.right = 0;
+			hiddenIframe.style.top = 0;
+			hiddenIframe.style.bottom = 0;
+
+			// Insert the iframe so that contentWindow is available
+			node.insertBefore(hiddenIframe, node.firstChild);
+
+			var timer = 0;
+			(hiddenIframe.contentWindow || hiddenIframe).onresize = function() {
+				if (callback) {
+					callback();
+				}
+			}
+		},
+		removeResizeListener = helpers.removeResizeListener = function(node) {
+			var hiddenIframe = node.querySelector('.chartjs-hidden-iframe');
+
+			// Remove the resize detect iframe
+			if (hiddenIframe) {
+				hiddenIframe.remove();
+			}
+		},
+		isArray = helpers.isArray = function(obj) {
+			if (!Array.isArray) {
+				return Object.prototype.toString.call(arg) === '[object Array]';
+			}
+			return Array.isArray(obj);
+		};
+
+}).call(this);

src/core/core.js

@@ -0,0 +1,115 @@
+/*!
+ * Chart.js
+ * http://chartjs.org/
+ * Version: {{ version }}
+ *
+ * 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, config) {
+		this.config = config;
+
+		// Support a jQuery'd canvas element
+		if (context.length && context[0].getContext) {
+			context = context[0];
+		}
+
+		// Support a canvas domnode
+		if (context.getContext) {
+			context = context.getContext("2d");
+		}
+
+		this.ctx = context;
+		this.canvas = context.canvas;
+
+		// Figure out what the size of the chart will be.
+		// If the canvas has a specified width and height, we use those else
+		// we look to see if the canvas node has a CSS width and height. 
+		// If there is still no height, fill the parent container
+		this.width = context.canvas.width || parseInt(Chart.helpers.getStyle(context.canvas, 'width')) || Chart.helpers.getMaximumWidth(context.canvas);
+		this.height = context.canvas.height || parseInt(Chart.helpers.getStyle(context.canvas, 'height')) || Chart.helpers.getMaximumHeight(context.canvas);
+
+		this.aspectRatio = this.width / this.height;
+
+		if (isNaN(this.aspectRatio) || isFinite(this.aspectRatio) === false) {
+			// If the canvas has no size, try and figure out what the aspect ratio will be.
+			// Some charts prefer square canvases (pie, radar, etc). If that is specified, use that
+			// else use the canvas default ratio of 2
+			this.aspectRatio = config.aspectRatio !== undefined ? config.aspectRatio : 2;
+		}
+
+		// Store the original style of the element so we can set it back
+		this.originalCanvasStyleWidth = context.canvas.style.width;
+		this.originalCanvasStyleHeight = context.canvas.style.height;
+
+		// High pixel density displays - multiply the size of the canvas height/width by the device pixel ratio, then scale.
+		Chart.helpers.retinaScale(this);
+
+		// Always bind this so that if the responsive state changes we still work
+		var _this = this;
+		Chart.helpers.addResizeListener(context.canvas.parentNode, function() {
+			if (config.options.responsive) {
+				_this.controller.resize();
+			}
+		});
+
+		if (config) {
+			this.controller = new Chart.Controller(this);
+			return this.controller;
+		}
+
+		return this;
+
+	};
+
+	//Globally expose the defaults to allow for user updating/changing
+	Chart.defaults = {
+		global: {
+			responsive: true,
+			responsiveAnimationDuration: 0,
+			maintainAspectRatio: true,
+			events: ["mousemove", "mouseout", "click", "touchstart", "touchmove", "touchend"],
+			hover: {
+				onHover: null,
+				mode: 'single',
+				animationDuration: 400,
+			},
+			onClick: null,
+			defaultColor: 'rgba(0,0,0,0.1)',
+
+			// Element defaults defined in element extensions
+			elements: {},
+
+			// Legend template string
+			legendTemplate: "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i = 0; i < data.datasets.length; i++){%><li><span style=\"background-color:<%=data.datasets[i].backgroundColor%>\"><%if(data.datasets[i].label){%><%=data.datasets[i].label%><%}%></span></li><%}%></ul>",
+		},
+	};
+
+	if (typeof amd !== 'undefined') {
+		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);

src/core/core.scale.js

@@ -0,0 +1,527 @@
+(function() {
+	"use strict";
+
+	var root = this,
+		Chart = root.Chart,
+		helpers = Chart.helpers;
+
+	Chart.defaults.scale = {
+		display: true,
+
+		// grid line settings
+		gridLines: {
+			show: true,
+			color: "rgba(0, 0, 0, 0.1)",
+			lineWidth: 1,
+			drawOnChartArea: true,
+			drawTicks: true,
+			zeroLineWidth: 1,
+			zeroLineColor: "rgba(0,0,0,0.25)",
+			offsetGridLines: false,
+		},
+
+		// scale label
+		scaleLabel: {
+			fontColor: '#666',
+			fontFamily: 'Helvetica Neue',
+			fontSize: 12,
+			fontStyle: 'normal',
+
+			// actual label
+			labelString: '',
+
+			// display property
+			show: false,
+		},
+
+		// label settings
+		ticks: {
+			beginAtZero: false,
+			fontSize: 12,
+			fontStyle: "normal",
+			fontColor: "#666",
+			fontFamily: "Helvetica Neue",
+			maxRotation: 90,
+			minRotation: 20,
+			mirror: false,
+			padding: 10,
+			reverse: false,
+			show: true,
+			template: "<%=value%>",
+		},
+	};
+
+	Chart.Scale = Chart.Element.extend({
+
+		// These methods are ordered by lifecyle. Utilities then follow.
+		// Any function defined here is inherited by all scale types.
+		// Any function can be extended by the scale type
+
+		beforeUpdate: helpers.noop,
+		update: function(maxWidth, maxHeight, margins) {
+
+			// Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
+			this.beforeUpdate();
+
+			// Absorb the master measurements
+			this.maxWidth = maxWidth;
+			this.maxHeight = maxHeight;
+			this.margins = margins;
+
+			// Dimensions
+			this.beforeSetDimensions();
+			this.setDimensions();
+			this.afterSetDimensions();
+			// Ticks
+			this.beforeBuildTicks();
+			this.buildTicks();
+			this.afterBuildTicks();
+
+			this.beforeTickToLabelConversion();
+			this.convertTicksToLabels();
+			this.afterTickToLabelConversion();
+
+			// Tick Rotation
+			this.beforeCalculateTickRotation();
+			this.calculateTickRotation();
+			this.afterCalculateTickRotation();
+			// Fit
+			this.beforeFit();
+			this.fit();
+			this.afterFit();
+			//
+			this.afterUpdate();
+
+			return this.minSize;
+
+		},
+		afterUpdate: helpers.noop,
+
+		//
+
+		beforeSetDimensions: helpers.noop,
+		setDimensions: function() {
+			// Set the unconstrained dimension before label rotation
+			if (this.isHorizontal()) {
+				this.width = this.maxWidth;
+			} else {
+				this.height = this.maxHeight;
+			}
+
+			// Reset padding
+			this.paddingLeft = 0;
+			this.paddingTop = 0;
+			this.paddingRight = 0;
+			this.paddingBottom = 0;
+		},
+		afterSetDimensions: helpers.noop,
+
+		//
+
+		beforeBuildTicks: helpers.noop,
+		buildTicks: helpers.noop,
+		afterBuildTicks: helpers.noop,
+
+		beforeTickToLabelConversion: helpers.noop,
+		convertTicksToLabels: function() {
+			// Convert ticks to strings
+			this.ticks = this.ticks.map(function(numericalTick, index, ticks) {
+				if (this.options.ticks.userCallback) {
+					return this.options.ticks.userCallback(numericalTick, index, ticks);
+				} else {
+					return helpers.template(this.options.ticks.template, {
+						value: numericalTick
+					});
+				}
+			}, this);
+		},
+		afterTickToLabelConversion: helpers.noop,
+
+		//
+
+		beforeCalculateTickRotation: helpers.noop,
+		calculateTickRotation: function() {
+			//Get the width of each grid by calculating the difference
+			//between x offsets between 0 and 1.
+			var labelFont = helpers.fontString(this.options.ticks.fontSize, this.options.ticks.fontStyle, this.options.ticks.fontFamily);
+			this.ctx.font = labelFont;
+
+			var firstWidth = this.ctx.measureText(this.ticks[0]).width;
+			var lastWidth = this.ctx.measureText(this.ticks[this.ticks.length - 1]).width;
+			var firstRotated;
+			var lastRotated;
+
+			this.paddingRight = lastWidth / 2 + 3;
+			this.paddingLeft = firstWidth / 2 + 3;
+
+			this.labelRotation = 0;
+
+			if (this.options.display && this.isHorizontal()) {
+				var originalLabelWidth = helpers.longestText(this.ctx, labelFont, this.ticks);
+				var cosRotation;
+				var sinRotation;
+				var firstRotatedWidth;
+
+				this.labelWidth = originalLabelWidth;
+
+				// Allow 3 pixels x2 padding either side for label readability
+				// only the index matters for a dataset scale, but we want a consistent interface between scales
+
+				var tickWidth = this.getPixelForTick(1) - this.getPixelForTick(0) - 6;
+
+				//Max label rotation can be set or default to 90 - also act as a loop counter
+				while (this.labelWidth > tickWidth && this.labelRotation <= this.options.ticks.maxRotation) {
+					cosRotation = Math.cos(helpers.toRadians(this.labelRotation));
+					sinRotation = Math.sin(helpers.toRadians(this.labelRotation));
+
+					firstRotated = cosRotation * firstWidth;
+					lastRotated = cosRotation * lastWidth;
+
+					// We're right aligning the text now.
+					if (firstRotated + this.options.ticks.fontSize / 2 > this.yLabelWidth) {
+						this.paddingLeft = firstRotated + this.options.ticks.fontSize / 2;
+					}
+
+					this.paddingRight = this.options.ticks.fontSize / 2;
+
+					if (sinRotation * originalLabelWidth > this.maxHeight) {
+						// go back one step
+						this.labelRotation--;
+						break;
+					}
+
+					this.labelRotation++;
+					this.labelWidth = cosRotation * originalLabelWidth;
+
+				}
+			} else {
+				this.labelWidth = 0;
+				this.paddingRight = 0;
+				this.paddingLeft = 0;
+			}
+
+			if (this.margins) {
+				this.paddingLeft -= this.margins.left;
+				this.paddingRight -= this.margins.right;
+
+				this.paddingLeft = Math.max(this.paddingLeft, 0);
+				this.paddingRight = Math.max(this.paddingRight, 0);
+			}
+		},
+		afterCalculateTickRotation: helpers.noop,
+
+		//
+
+		beforeFit: helpers.noop,
+		fit: function() {
+
+			this.minSize = {
+				width: 0,
+				height: 0,
+			};
+
+			// Width
+			if (this.isHorizontal()) {
+				this.minSize.width = this.maxWidth; // fill all the width
+			} else {
+				this.minSize.width = this.options.gridLines.show && this.options.display ? 10 : 0;
+			}
+
+			// height
+			if (this.isHorizontal()) {
+				this.minSize.height = this.options.gridLines.show && this.options.display ? 10 : 0;
+			} else {
+				this.minSize.height = this.maxHeight; // fill all the height
+			}
+
+			// Are we showing a title for the scale?
+            if (this.options.scaleLabel.show) {
+                if (this.isHorizontal()) {
+                    this.minSize.height += (this.options.scaleLabel.fontSize * 1.5);
+                } else {
+                    this.minSize.width += (this.options.scaleLabel.fontSize * 1.5);
+                }
+            }
+
+			if (this.options.ticks.show && this.options.display) {
+				// Don't bother fitting the ticks if we are not showing them
+				var labelFont = helpers.fontString(this.options.ticks.fontSize,
+					this.options.ticks.fontStyle, this.options.ticks.fontFamily);
+
+				if (this.isHorizontal()) {
+					// A horizontal axis is more constrained by the height.
+					var maxLabelHeight = this.maxHeight - this.minSize.height;
+					var longestLabelWidth = helpers.longestText(this.ctx, labelFont, this.ticks);
+					var labelHeight = (Math.sin(helpers.toRadians(this.labelRotation)) * longestLabelWidth) + 1.5 * this.options.ticks.fontSize;
+
+					this.minSize.height = Math.min(this.maxHeight, this.minSize.height + labelHeight);
+
+					labelFont = helpers.fontString(this.options.ticks.fontSize, this.options.ticks.fontStyle, this.options.ticks.fontFamily);
+					this.ctx.font = labelFont;
+
+					var firstLabelWidth = this.ctx.measureText(this.ticks[0]).width;
+					var lastLabelWidth = this.ctx.measureText(this.ticks[this.ticks.length - 1]).width;
+
+					// Ensure that our ticks are always inside the canvas. When rotated, ticks are right aligned which means that the right padding is dominated
+					// by the font height 
+					var cosRotation = Math.cos(helpers.toRadians(this.labelRotation));
+					var sinRotation = Math.sin(helpers.toRadians(this.labelRotation));
+					this.paddingLeft = this.labelRotation !== 0 ? (cosRotation * firstLabelWidth) + 3 : firstLabelWidth / 2 + 3; // add 3 px to move away from canvas edges
+					this.paddingRight = this.labelRotation !== 0 ? (sinRotation * (this.options.ticks.fontSize / 2)) + 3 : lastLabelWidth / 2 + 3; // when rotated
+				} else {
+					// A vertical axis is more constrained by the width. Labels are the dominant factor here, so get that length first
+					var maxLabelWidth = this.maxWidth - this.minSize.width;
+					var largestTextWidth = helpers.longestText(this.ctx, labelFont, this.ticks);
+
+					if (largestTextWidth < maxLabelWidth) {
+						// We don't need all the room
+						this.minSize.width += largestTextWidth;
+					} else {
+						// Expand to max size
+						this.minSize.width = this.maxWidth;
+					}
+
+					this.paddingTop = this.options.ticks.fontSize / 2;
+					this.paddingBottom = this.options.ticks.fontSize / 2;
+				}
+			}
+
+			if (this.margins) {
+				this.paddingLeft -= this.margins.left;
+				this.paddingTop -= this.margins.top;
+				this.paddingRight -= this.margins.right;
+				this.paddingBottom -= this.margins.bottom;
+
+				this.paddingLeft = Math.max(this.paddingLeft, 0);
+				this.paddingTop = Math.max(this.paddingTop, 0);
+				this.paddingRight = Math.max(this.paddingRight, 0);
+				this.paddingBottom = Math.max(this.paddingBottom, 0);
+			}
+
+			this.width = this.minSize.width;
+			this.height = this.minSize.height;
+
+		},
+		afterFit: helpers.noop,
+
+		// Shared Methods
+		isHorizontal: function() {
+			return this.options.position == "top" || this.options.position == "bottom";
+		},
+
+		// Used to get data value locations.  Value can either be an index or a numerical value
+		getPixelForValue: helpers.noop,
+
+		// Used for tick location, should 
+		getPixelForTick: function(index, includeOffset) {
+			if (this.isHorizontal()) {
+				var innerWidth = this.width - (this.paddingLeft + this.paddingRight);
+				var tickWidth = innerWidth / Math.max((this.ticks.length - ((this.options.gridLines.offsetGridLines) ? 0 : 1)), 1);
+				var pixel = (tickWidth * index) + this.paddingLeft;
+
+				if (includeOffset) {
+					pixel += tickWidth / 2;
+				}
+				return this.left + Math.round(pixel);
+			} else {
+				var innerHeight = this.height - (this.paddingTop + this.paddingBottom);
+				return this.top + (index * (innerHeight / (this.ticks.length - 1)));
+			}
+		},
+
+		// Utility for getting the pixel location of a percentage of scale
+		getPixelForDecimal: function(decimal, includeOffset) {
+			if (this.isHorizontal()) {
+				var innerWidth = this.width - (this.paddingLeft + this.paddingRight);
+				var valueOffset = (innerWidth * decimal) + this.paddingLeft;
+
+				return this.left + Math.round(valueOffset);
+			} else {
+				return this.top + (decimal * (this.height / this.ticks.length));
+			}
+		},
+
+		// Actualy draw the scale on the canvas
+		// @param {rectangle} chartArea : the area of the chart to draw full grid lines on
+		draw: function(chartArea) {
+			if (this.options.display) {
+
+				var setContextLineSettings;
+				var isRotated = this.labelRotation !== 0;
+				var skipRatio;
+				var scaleLabelX;
+				var scaleLabelY;
+
+				// Make sure we draw text in the correct color
+				this.ctx.fillStyle = this.options.ticks.fontColor;
+
+				if (this.isHorizontal()) {
+					setContextLineSettings = true;
+					var yTickStart = this.options.position == "bottom" ? this.top : this.bottom - 10;
+					var yTickEnd = this.options.position == "bottom" ? this.top + 10 : this.bottom;
+					skipRatio = false;
+
+					if ((this.options.ticks.fontSize + 4) * this.ticks.length > (this.width - (this.paddingLeft + this.paddingRight))) {
+						skipRatio = 1 + Math.floor(((this.options.ticks.fontSize + 4) * this.ticks.length) / (this.width - (this.paddingLeft + this.paddingRight)));
+					}
+
+					helpers.each(this.ticks, function(label, index) {
+						// Blank ticks
+						if ((skipRatio > 1 && index % skipRatio > 0) || (label === undefined || label === null)) {
+							return;
+						}
+						var xLineValue = this.getPixelForTick(index); // xvalues for grid lines
+						var xLabelValue = this.getPixelForTick(index, this.options.gridLines.offsetGridLines); // x values for ticks (need to consider offsetLabel option)
+
+						if (this.options.gridLines.show) {
+							if (index === (typeof this.zeroLineIndex !== 'undefined' ? this.zeroLineIndex : 0)) {
+								// Draw the first index specially
+								this.ctx.lineWidth = this.options.gridLines.zeroLineWidth;
+								this.ctx.strokeStyle = this.options.gridLines.zeroLineColor;
+								setContextLineSettings = true; // reset next time
+							} else if (setContextLineSettings) {
+								this.ctx.lineWidth = this.options.gridLines.lineWidth;
+								this.ctx.strokeStyle = this.options.gridLines.color;
+								setContextLineSettings = false;
+							}
+
+							xLineValue += helpers.aliasPixel(this.ctx.lineWidth);
+
+							// Draw the label area
+							this.ctx.beginPath();
+
+							if (this.options.gridLines.drawTicks) {
+								this.ctx.moveTo(xLineValue, yTickStart);
+								this.ctx.lineTo(xLineValue, yTickEnd);
+							}
+
+							// Draw the chart area
+							if (this.options.gridLines.drawOnChartArea) {
+								this.ctx.moveTo(xLineValue, chartArea.top);
+								this.ctx.lineTo(xLineValue, chartArea.bottom);
+							}
+
+							// Need to stroke in the loop because we are potentially changing line widths & colours
+							this.ctx.stroke();
+						}
+
+						if (this.options.ticks.show) {
+							this.ctx.save();
+							this.ctx.translate(xLabelValue, (isRotated) ? this.top + 12 : this.options.position === "top" ? this.bottom - 10 : this.top + 10);
+							this.ctx.rotate(helpers.toRadians(this.labelRotation) * -1);
+							this.ctx.font = this.font;
+							this.ctx.textAlign = (isRotated) ? "right" : "center";
+							this.ctx.textBaseline = (isRotated) ? "middle" : this.options.position === "top" ? "bottom" : "top";
+							this.ctx.fillText(label, 0, 0);
+							this.ctx.restore();
+						}
+					}, this);
+
+					if (this.options.scaleLabel.show) {
+						// Draw the scale label
+						this.ctx.textAlign = "center";
+						this.ctx.textBaseline = 'middle';
+						this.ctx.font = helpers.fontString(this.options.scaleLabel.fontSize, this.options.scaleLabel.fontStyle, this.options.scaleLabel.fontFamily);
+
+						scaleLabelX = this.left + ((this.right - this.left) / 2); // midpoint of the width
+						scaleLabelY = this.options.position == 'bottom' ? this.bottom - (this.options.scaleLabel.fontSize / 2) : this.top + (this.options.scaleLabel.fontSize / 2);
+
+						this.ctx.fillText(this.options.scaleLabel.labelString, scaleLabelX, scaleLabelY);
+					}
+
+				} else {
+					setContextLineSettings = true;
+					var xTickStart = this.options.position == "right" ? this.left : this.right - 5;
+					var xTickEnd = this.options.position == "right" ? this.left + 5 : this.right;
+
+					helpers.each(this.ticks, function(label, index) {
+						var yLineValue = this.getPixelForTick(index); // xvalues for grid lines
+
+						if (this.options.gridLines.show) {
+							if (index === (typeof this.zeroLineIndex !== 'undefined' ? this.zeroLineIndex : 0)) {
+								// Draw the first index specially
+								this.ctx.lineWidth = this.options.gridLines.zeroLineWidth;
+								this.ctx.strokeStyle = this.options.gridLines.zeroLineColor;
+								setContextLineSettings = true; // reset next time
+							} else if (setContextLineSettings) {
+								this.ctx.lineWidth = this.options.gridLines.lineWidth;
+								this.ctx.strokeStyle = this.options.gridLines.color;
+								setContextLineSettings = false;
+							}
+
+							yLineValue += helpers.aliasPixel(this.ctx.lineWidth);
+
+							// Draw the label area
+							this.ctx.beginPath();
+
+							if (this.options.gridLines.drawTicks) {
+								this.ctx.moveTo(xTickStart, yLineValue);
+								this.ctx.lineTo(xTickEnd, yLineValue);
+							}
+
+							// Draw the chart area
+							if (this.options.gridLines.drawOnChartArea) {
+								this.ctx.moveTo(chartArea.left, yLineValue);
+								this.ctx.lineTo(chartArea.right, yLineValue);
+							}
+
+							// Need to stroke in the loop because we are potentially changing line widths & colours
+							this.ctx.stroke();
+						}
+
+						if (this.options.ticks.show) {
+							var xLabelValue;
+							var yLabelValue = this.getPixelForTick(index, this.options.gridLines.offsetGridLines); // x values for ticks (need to consider offsetLabel option)
+
+							this.ctx.save();
+
+							if (this.options.position == "left") {
+								if (this.options.ticks.mirror) {
+									xLabelValue = this.right + this.options.ticks.padding;
+									this.ctx.textAlign = "left";
+								} else {
+									xLabelValue = this.right - this.options.ticks.padding;
+									this.ctx.textAlign = "right";
+								}
+							} else {
+								// right side
+								if (this.options.ticks.mirror) {
+									xLabelValue = this.left - this.options.ticks.padding;
+									this.ctx.textAlign = "right";
+								} else {
+									xLabelValue = this.left + this.options.ticks.padding;
+									this.ctx.textAlign = "left";
+								}
+							}
+
+							
+							this.ctx.translate(xLabelValue, yLabelValue);
+							this.ctx.rotate(helpers.toRadians(this.labelRotation) * -1);
+							this.ctx.font = this.font;
+							this.ctx.textBaseline = "middle";
+							this.ctx.fillText(label, 0, 0);
+							this.ctx.restore();
+						}
+					}, this);
+
+					if (this.options.scaleLabel.show) {
+						// Draw the scale label
+						scaleLabelX = this.options.position == 'left' ? this.left + (this.options.scaleLabel.fontSize / 2) : this.right - (this.options.scaleLabel.fontSize / 2);
+						scaleLabelY = this.top + ((this.bottom - this.top) / 2);
+						var rotation = this.options.position == 'left' ? -0.5 * Math.PI : 0.5 * Math.PI;
+
+						this.ctx.save();
+						this.ctx.translate(scaleLabelX, scaleLabelY);
+						this.ctx.rotate(rotation);
+						this.ctx.textAlign = "center";
+						this.ctx.font = helpers.fontString(this.options.scaleLabel.fontSize, this.options.scaleLabel.fontStyle, this.options.scaleLabel.fontFamily);
+						this.ctx.textBaseline = 'middle';
+						this.ctx.fillText(this.options.scaleLabel.labelString, 0, 0);
+						this.ctx.restore();
+					}
+				}
+			}
+		}
+	});
+
+}).call(this);

src/core/core.scaleService.js

@@ -0,0 +1,335 @@
+(function() {
+	"use strict";
+
+	var root = this,
+		Chart = root.Chart,
+		helpers = Chart.helpers;
+
+	// The scale service is used to resize charts along with all of their axes. We make this as
+	// a service where scales are registered with their respective charts so that changing the
+	// scales does not require 
+	Chart.scaleService = {
+		// Scale registration object. Extensions can register new scale types (such as log or DB scales) and then
+		// use the new chart options to grab the correct scale
+		constructors: {},
+		// Use a registration function so that we can move to an ES6 map when we no longer need to support
+		// old browsers
+
+		// Scale config defaults
+		defaults: {},
+		registerScaleType: function(type, scaleConstructor, defaults) {
+			this.constructors[type] = scaleConstructor;
+			this.defaults[type] = helpers.scaleMerge(Chart.defaults.scale, defaults);
+		},
+		getScaleConstructor: function(type) {
+			return this.constructors.hasOwnProperty(type) ? this.constructors[type] : undefined;
+		},
+		getScaleDefaults: function(type) {
+			return this.defaults.hasOwnProperty(type) ? this.defaults[type] : {};
+		},
+		// The interesting function
+		update: function(chartInstance, width, height) {
+			var xPadding = width > 30 ? 5 : 2;
+			var yPadding = height > 30 ? 5 : 2;
+
+			if (chartInstance) {
+				var leftScales = helpers.where(chartInstance.scales, function(scaleInstance) {
+					return scaleInstance.options.position == "left";
+				});
+				var rightScales = helpers.where(chartInstance.scales, function(scaleInstance) {
+					return scaleInstance.options.position == "right";
+				});
+				var topScales = helpers.where(chartInstance.scales, function(scaleInstance) {
+					return scaleInstance.options.position == "top";
+				});
+				var bottomScales = helpers.where(chartInstance.scales, function(scaleInstance) {
+					return scaleInstance.options.position == "bottom";
+				});
+
+				// Scales that overlay the chartarea such as the radialLinear scale
+				var chartAreaScales = helpers.where(chartInstance.scales, function(scaleInstance) {
+					return scaleInstance.options.position == "chartArea";
+				});
+
+				// Essentially we now have any number of scales on each of the 4 sides.
+				// Our canvas looks like the following.
+				// The areas L1 and L2 are the left axes. R1 is the right axis, T1 is the top axis and 
+				// B1 is the bottom axis
+				// |------------------------------------------------------|
+				// |          |             T1                      |     |
+				// |----|-----|-------------------------------------|-----|
+				// |    |     |                                     |     |
+				// | L1 |  L2 |         Chart area                  |  R1 |
+				// |    |     |                                     |     |
+				// |    |     |                                     |     |
+				// |----|-----|-------------------------------------|-----|
+				// |          |             B1                      |     |
+				// |          |                                     |     |
+				// |------------------------------------------------------|
+
+				// What we do to find the best sizing, we do the following
+				// 1. Determine the minimum size of the chart area. 
+				// 2. Split the remaining width equally between each vertical axis
+				// 3. Split the remaining height equally between each horizontal axis
+				// 4. Give each scale the maximum size it can be. The scale will return it's minimum size
+				// 5. Adjust the sizes of each axis based on it's minimum reported size. 
+				// 6. Refit each axis
+				// 7. Position each axis in the final location
+				// 8. Tell the chart the final location of the chart area
+				// 9. Tell any axes that overlay the chart area the positions of the chart area
+
+				// Step 1
+				var chartWidth = width / 2; // min 50%
+				var chartHeight = height / 2; // min 50%
+
+				chartWidth -= (2 * xPadding);
+				chartHeight -= (2 * yPadding);
+
+				// Step 2
+				var verticalScaleWidth = (width - chartWidth) / (leftScales.length + rightScales.length);
+
+				// Step 3
+				var horizontalScaleHeight = (height - chartHeight) / (topScales.length + bottomScales.length);
+
+				// Step 4;
+				var minimumScaleSizes = [];
+
+				var verticalScaleMinSizeFunction = function(scaleInstance) {
+					var minSize = scaleInstance.update(verticalScaleWidth, chartHeight);
+					minimumScaleSizes.push({
+						horizontal: false,
+						minSize: minSize,
+						scale: scaleInstance,
+					});
+				};
+
+				var horizontalScaleMinSizeFunction = function(scaleInstance) {
+					var minSize = scaleInstance.update(chartWidth, horizontalScaleHeight);
+					minimumScaleSizes.push({
+						horizontal: true,
+						minSize: minSize,
+						scale: scaleInstance,
+					});
+				};
+
+				// vertical scales
+				helpers.each(leftScales, verticalScaleMinSizeFunction);
+				helpers.each(rightScales, verticalScaleMinSizeFunction);
+
+				// horizontal scales
+				helpers.each(topScales, horizontalScaleMinSizeFunction);
+				helpers.each(bottomScales, horizontalScaleMinSizeFunction);
+
+				// Step 5
+				var maxChartHeight = height - (2 * yPadding);
+				var maxChartWidth = width - (2 * xPadding);
+
+				helpers.each(minimumScaleSizes, function(wrapper) {
+					if (wrapper.horizontal) {
+						maxChartHeight -= wrapper.minSize.height;
+					} else {
+						maxChartWidth -= wrapper.minSize.width;
+					}
+				});
+
+				// At this point, maxChartHeight and maxChartWidth are the size the chart area could
+				// be if the axes are drawn at their minimum sizes.
+
+				// Step 6
+				var verticalScaleFitFunction = function(scaleInstance) {
+					var wrapper = helpers.findNextWhere(minimumScaleSizes, function(wrapper) {
+						return wrapper.scale === scaleInstance;
+					});
+
+					if (wrapper) {
+						scaleInstance.update(wrapper.minSize.width, maxChartHeight);
+					}
+				};
+
+				var horizontalScaleFitFunction = function(scaleInstance) {
+					var wrapper = helpers.findNextWhere(minimumScaleSizes, function(wrapper) {
+						return wrapper.scale === scaleInstance;
+					});
+
+					var scaleMargin = {
+						left: totalLeftWidth,
+						right: totalRightWidth,
+						top: 0,
+						bottom: 0,
+					};
+
+					if (wrapper) {
+						scaleInstance.update(maxChartWidth, wrapper.minSize.height, scaleMargin);
+					}
+				};
+
+				var totalLeftWidth = xPadding;
+				var totalRightWidth = xPadding;
+				var totalTopHeight = yPadding;
+				var totalBottomHeight = yPadding;
+
+				helpers.each(leftScales, verticalScaleFitFunction);
+				helpers.each(rightScales, verticalScaleFitFunction);
+
+				// Figure out how much margin is on the left and right of the horizontal axes
+				helpers.each(leftScales, function(scaleInstance) {
+					totalLeftWidth += scaleInstance.width;
+				});
+
+				helpers.each(rightScales, function(scaleInstance) {
+					totalRightWidth += scaleInstance.width;
+				});
+
+				helpers.each(topScales, horizontalScaleFitFunction);
+				helpers.each(bottomScales, horizontalScaleFitFunction);
+
+				helpers.each(topScales, function(scaleInstance) {
+					totalTopHeight += scaleInstance.height;
+				});
+				helpers.each(bottomScales, function(scaleInstance) {
+					totalBottomHeight += scaleInstance.height;
+				});
+
+				// Let the left scale know the final margin
+				helpers.each(leftScales, function(scaleInstance) {
+					var wrapper = helpers.findNextWhere(minimumScaleSizes, function(wrapper) {
+						return wrapper.scale === scaleInstance;
+					});
+
+					var scaleMargin = {
+						left: 0,
+						right: 0,
+						top: totalTopHeight,
+						bottom: totalBottomHeight
+					};
+
+					if (wrapper) {
+						scaleInstance.update(wrapper.minSize.width, maxChartHeight, scaleMargin);
+					}
+				});
+
+				helpers.each(rightScales, function(scaleInstance) {
+					var wrapper = helpers.findNextWhere(minimumScaleSizes, function(wrapper) {
+						return wrapper.scale === scaleInstance;
+					});
+
+					var scaleMargin = {
+						left: 0,
+						right: 0,
+						top: totalTopHeight,
+						bottom: totalBottomHeight
+					};
+
+					if (wrapper) {
+						scaleInstance.update(wrapper.minSize.width, maxChartHeight, scaleMargin);
+					}
+				});
+
+				// Recalculate because the size of each scale might have changed slightly due to the margins (label rotation for instance)
+				totalLeftWidth = xPadding;
+				totalRightWidth = xPadding;
+				totalTopHeight = yPadding;
+				totalBottomHeight = yPadding;
+
+				helpers.each(leftScales, function(scaleInstance) {
+					totalLeftWidth += scaleInstance.width;
+				});
+
+				helpers.each(rightScales, function(scaleInstance) {
+					totalRightWidth += scaleInstance.width;
+				});
+
+				helpers.each(topScales, function(scaleInstance) {
+					totalTopHeight += scaleInstance.height;
+				});
+				helpers.each(bottomScales, function(scaleInstance) {
+					totalBottomHeight += scaleInstance.height;
+				});
+
+				// Figure out if our chart area changed. This would occur if the dataset scale label rotation
+				// changed due to the application of the margins in step 6. Since we can only get bigger, this is safe to do
+				// without calling `fit` again
+				var newMaxChartHeight = height - totalTopHeight - totalBottomHeight;
+				var newMaxChartWidth = width - totalLeftWidth - totalRightWidth;
+
+				if (newMaxChartWidth !== maxChartWidth || newMaxChartHeight !== maxChartHeight) {
+					helpers.each(leftScales, function(scale) {
+						scale.height = newMaxChartHeight;
+					});
+
+					helpers.each(rightScales, function(scale) {
+						scale.height = newMaxChartHeight;
+					});
+
+					helpers.each(topScales, function(scale) {
+						scale.width = newMaxChartWidth;
+					});
+
+					helpers.each(bottomScales, function(scale) {
+						scale.width = newMaxChartWidth;
+					});
+
+					maxChartHeight = newMaxChartHeight;
+					maxChartWidth = newMaxChartWidth;
+				}
+
+				// Step 7 
+				// Position the scales
+				var left = xPadding;
+				var top = yPadding;
+				var right = 0;
+				var bottom = 0;
+
+				var verticalScalePlacer = function(scaleInstance) {
+					scaleInstance.left = left;
+					scaleInstance.right = left + scaleInstance.width;
+					scaleInstance.top = totalTopHeight;
+					scaleInstance.bottom = totalTopHeight + maxChartHeight;
+
+					// Move to next point
+					left = scaleInstance.right;
+				};
+
+				var horizontalScalePlacer = function(scaleInstance) {
+					scaleInstance.left = totalLeftWidth;
+					scaleInstance.right = totalLeftWidth + maxChartWidth;
+					scaleInstance.top = top;
+					scaleInstance.bottom = top + scaleInstance.height;
+
+					// Move to next point 
+					top = scaleInstance.bottom;
+				};
+
+				helpers.each(leftScales, verticalScalePlacer);
+				helpers.each(topScales, horizontalScalePlacer);
+
+				// Account for chart width and height
+				left += maxChartWidth;
+				top += maxChartHeight;
+
+				helpers.each(rightScales, verticalScalePlacer);
+				helpers.each(bottomScales, horizontalScalePlacer);
+
+				// Step 8
+				chartInstance.chartArea = {
+					left: totalLeftWidth,
+					top: totalTopHeight,
+					right: totalLeftWidth + maxChartWidth,
+					bottom: totalTopHeight + maxChartHeight,
+				};
+
+				// Step 9
+				helpers.each(chartAreaScales, function(scaleInstance) {
+					scaleInstance.left = chartInstance.chartArea.left;
+					scaleInstance.top = chartInstance.chartArea.top;
+					scaleInstance.right = chartInstance.chartArea.right;
+					scaleInstance.bottom = chartInstance.chartArea.bottom;
+					
+					scaleInstance.update(maxChartWidth, maxChartHeight);
+				});
+			}
+		}
+	};
+
+
+}).call(this);

src/core/core.tooltip.js

@@ -0,0 +1,347 @@
+(function() {
+
+	"use strict";
+
+	var root = this,
+		Chart = root.Chart,
+		helpers = Chart.helpers;
+
+	Chart.defaults.global.tooltips = {
+		enabled: true,
+		custom: null,
+		backgroundColor: "rgba(0,0,0,0.8)",
+		fontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif",
+		fontSize: 10,
+		fontStyle: "normal",
+		fontColor: "#fff",
+		titleFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif",
+		titleFontSize: 12,
+		titleFontStyle: "bold",
+		titleFontColor: "#fff",
+		yPadding: 6,
+		xPadding: 6,
+		caretSize: 8,
+		cornerRadius: 6,
+		xOffset: 10,
+		template: [
+			'<% if(label){ %>',
+			'<%=label %>: ',
+			'<% } %>',
+			'<%=value %>',
+		].join(''),
+		multiTemplate: [
+			'<%if (datasetLabel){ %>',
+			'<%=datasetLabel %>: ',
+			'<% } %>',
+			'<%=value %>'
+		].join(''),
+		multiKeyBackground: '#fff',
+	};
+
+	Chart.Tooltip = Chart.Element.extend({
+		initialize: function() {
+			var options = this._options;
+			helpers.extend(this, {
+				_model: {
+					// Positioning
+					xPadding: options.tooltips.xPadding,
+					yPadding: options.tooltips.yPadding,
+					xOffset: options.tooltips.xOffset,
+
+					// Labels
+					textColor: options.tooltips.fontColor,
+					_fontFamily: options.tooltips.fontFamily,
+					_fontStyle: options.tooltips.fontStyle,
+					fontSize: options.tooltips.fontSize,
+
+					// Title
+					titleTextColor: options.tooltips.titleFontColor,
+					_titleFontFamily: options.tooltips.titleFontFamily,
+					_titleFontStyle: options.tooltips.titleFontStyle,
+					titleFontSize: options.tooltips.titleFontSize,
+
+					// Appearance
+					caretHeight: options.tooltips.caretSize,
+					cornerRadius: options.tooltips.cornerRadius,
+					backgroundColor: options.tooltips.backgroundColor,
+					opacity: 0,
+					legendColorBackground: options.tooltips.multiKeyBackground,
+				},
+			});
+		},
+		update: function() {
+
+			var ctx = this._chart.ctx;
+
+			switch (this._options.hover.mode) {
+				case 'single':
+					helpers.extend(this._model, {
+						text: helpers.template(this._options.tooltips.template, {
+							// These variables are available in the template function. Add others here
+							element: this._active[0],
+							value: this._data.datasets[this._active[0]._datasetIndex].data[this._active[0]._index],
+							label: this._active[0]._model.label !== undefined ? this._active[0]._model.label : this._data.labels ? this._data.labels[this._active[0]._index] : '',
+						}),
+					});
+
+					var tooltipPosition = this._active[0].tooltipPosition();
+					helpers.extend(this._model, {
+						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 = helpers.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]);
+							}
+						}, this);
+
+						// Reverse labels if stacked
+						helpers.each(this._options.stacked ? elements.reverse() : elements, function(element) {
+							xPositions.push(element._view.x);
+							yPositions.push(element._view.y);
+
+							//Include any colour information about the element
+							labels.push(helpers.template(this._options.tooltips.multiTemplate, {
+								// These variables are available in the template function. Add others here
+								element: element,
+								datasetLabel: this._data.datasets[element._datasetIndex].label,
+								value: this._data.datasets[element._datasetIndex].data[element._index],
+							}));
+							colors.push({
+								fill: element._view.backgroundColor,
+								stroke: element._view.borderColor
+							});
+
+						}, this);
+
+						yMin = helpers.min(yPositions);
+						yMax = helpers.max(yPositions);
+
+						xMin = helpers.min(xPositions);
+						xMax = helpers.max(xPositions);
+
+						return {
+							x: (xMin > this._chart.width / 2) ? xMin : xMax,
+							y: (yMin + yMax) / 2,
+						};
+					}).call(this, dataIndex);
+
+					// Apply for now
+					helpers.extend(this._model, {
+						x: medianPosition.x,
+						y: medianPosition.y,
+						labels: labels,
+						title: (function() {
+							return this._data.timeLabels ? this._data.timeLabels[this._active[0]._index] :
+								(this._data.labels && this._data.labels.length) ? this._data.labels[this._active[0]._index] :
+								'';
+						}).call(this),
+						legendColors: colors,
+						legendBackgroundColor: this._options.tooltips.multiKeyBackground,
+					});
+
+
+					// Calculate Appearance Tweaks
+
+					this._model.height = (labels.length * this._model.fontSize) + ((labels.length - 1) * (this._model.fontSize / 2)) + (this._model.yPadding * 2) + this._model.titleFontSize * 1.5;
+
+					var titleWidth = ctx.measureText(this._model.title).width,
+						//Label has a legend square as well so account for this.
+						labelWidth = helpers.longestText(ctx, this.font, labels) + this._model.fontSize + 3,
+						longestTextWidth = helpers.max([labelWidth, titleWidth]);
+
+					this._model.width = longestTextWidth + (this._model.xPadding * 2);
+
+
+					var halfHeight = this._model.height / 2;
+
+					//Check to ensure the height will fit on the canvas
+					if (this._model.y - halfHeight < 0) {
+						this._model.y = halfHeight;
+					} else if (this._model.y + halfHeight > this._chart.height) {
+						this._model.y = this._chart.height - halfHeight;
+					}
+
+					//Decide whether to align left or right based on position on canvas
+					if (this._model.x > this._chart.width / 2) {
+						this._model.x -= this._model.xOffset + this._model.width;
+					} else {
+						this._model.x += this._model.xOffset;
+					}
+					break;
+			}
+
+			return this;
+		},
+		draw: function() {
+
+			var ctx = this._chart.ctx;
+			var vm = this._view;
+
+			switch (this._options.hover.mode) {
+				case 'single':
+
+					ctx.font = helpers.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._options.tooltips.custom) {
+						this._options.tooltips.custom(this);
+					}
+					if (!this._options.tooltips.enabled) {
+						return;
+					}
+
+					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;
+					}
+
+					helpers.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':
+
+					// Custom Tooltips
+					if (this._options.tooltips.custom) {
+						this._options.tooltips.custom(this);
+					}
+					if (!this._options.tooltips.enabled) {
+						return;
+					}
+
+					helpers.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 = helpers.fontString(vm.fontSize, vm._titleFontStyle, vm._titleFontFamily);
+					ctx.fillText(vm.title, vm.x + vm.xPadding, this.getLineHeight(0));
+
+					ctx.font = helpers.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.legendColors[index].stroke).alpha(vm.opacity).rgbString();
+						ctx.fillRect(vm.x + vm.xPadding - 1, this.getLineHeight(index + 1) - vm.fontSize / 2 - 1, vm.fontSize + 2, vm.fontSize + 2);
+
+						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._view.y - (this._view.height / 2) + this._view.yPadding,
+				afterTitleIndex = index - 1;
+
+			//If the index is zero, we're getting the title
+			if (index === 0) {
+				return baseLineHeight + this._view.titleFontSize / 2;
+			} else {
+				return baseLineHeight + ((this._view.fontSize * 1.5 * afterTitleIndex) + this._view.fontSize / 2) + this._view.titleFontSize * 1.5;
+			}
+
+		},
+	});
+
+}).call(this);

src/elements/element.arc.js

@@ -0,0 +1,96 @@
+/*!
+ * Chart.js
+ * http://chartjs.org/
+ * Version: {{ version }}
+ *
+ * Copyright 2015 Nick Downie
+ * Released under the MIT license
+ * https://github.com/nnnick/Chart.js/blob/master/LICENSE.md
+ */
+
+
+(function() {
+
+	"use strict";
+
+	var root = this,
+		Chart = root.Chart,
+		helpers = Chart.helpers;
+
+	Chart.defaults.global.elements.arc = {
+		backgroundColor: Chart.defaults.global.defaultColor,
+		borderColor: "#fff",
+		borderWidth: 2
+	};
+
+	Chart.elements.Arc = Chart.Element.extend({
+		inLabelRange: function(mouseX) {
+			var vm = this._view;
+
+			if (vm) {
+				return (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hoverRadius, 2));
+			} else {
+				return false;
+			}
+		},
+		inRange: function(chartX, chartY) {
+
+			var vm = this._view;
+
+			if (vm) {
+				var pointRelativePosition = helpers.getAngleFromPoint(vm, {
+					x: chartX,
+					y: chartY
+				});
+
+				// Put into the range of (-PI/2, 3PI/2]
+				var startAngle = vm.startAngle < (-0.5 * Math.PI) ? vm.startAngle + (2.0 * Math.PI) : vm.startAngle > (1.5 * Math.PI) ? vm.startAngle - (2.0 * Math.PI) : vm.startAngle;
+				var endAngle = vm.endAngle < (-0.5 * Math.PI) ? vm.endAngle + (2.0 * Math.PI) : vm.endAngle > (1.5 * Math.PI) ? vm.endAngle - (2.0 * Math.PI) : vm.endAngle
+
+				//Check if within the range of the open/close angle
+				var betweenAngles = (pointRelativePosition.angle >= startAngle && pointRelativePosition.angle <= endAngle),
+					withinRadius = (pointRelativePosition.distance >= vm.innerRadius && pointRelativePosition.distance <= vm.outerRadius);
+
+				return (betweenAngles && withinRadius);
+			} else {
+				return false;
+			}			
+		},
+		tooltipPosition: function() {
+			var vm = this._view;
+
+			var centreAngle = vm.startAngle + ((vm.endAngle - vm.startAngle) / 2),
+				rangeFromCentre = (vm.outerRadius - vm.innerRadius) / 2 + vm.innerRadius;
+			return {
+				x: vm.x + (Math.cos(centreAngle) * rangeFromCentre),
+				y: vm.y + (Math.sin(centreAngle) * rangeFromCentre)
+			};
+		},
+		draw: function() {
+
+			var ctx = this._chart.ctx;
+			var vm = this._view;
+
+			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();
+			}
+		}
+	});
+
+
+}).call(this);

src/elements/element.line.js

@@ -0,0 +1,192 @@
+/*!
+ * Chart.js
+ * http://chartjs.org/
+ * Version: {{ version }}
+ *
+ * Copyright 2015 Nick Downie
+ * Released under the MIT license
+ * https://github.com/nnnick/Chart.js/blob/master/LICENSE.md
+ */
+
+
+(function() {
+
+	"use strict";
+
+	var root = this,
+		Chart = root.Chart,
+		helpers = Chart.helpers;
+
+	Chart.defaults.global.elements.line = {
+		tension: 0.4,
+		backgroundColor: Chart.defaults.global.defaultColor,
+		borderWidth: 3,
+		borderColor: Chart.defaults.global.defaultColor,
+		borderCapStyle: 'butt',
+		borderDash: [],
+		borderDashOffset: 0.0,
+		borderJoinStyle: 'miter',
+		fill: true, // do we fill in the area between the line and its base axis
+		skipNull: true,
+		drawNull: false,
+	};
+
+
+	Chart.elements.Line = Chart.Element.extend({
+		draw: function() {
+
+			var vm = this._view;
+			var ctx = this._chart.ctx;
+			var first = this._children[0];
+			var last = this._children[this._children.length - 1];
+
+			ctx.save();
+
+			// Draw the background first (so the border is always on top)
+			helpers.each(this._children, function(point, index) {
+				var previous = helpers.previousItem(this._children, index);
+				var next = helpers.nextItem(this._children, index);
+
+				// First point only
+				if (index === 0) {
+					ctx.moveTo(point._view.x, point._view.y);
+					return;
+				}
+
+				// Start Skip and drag along scale baseline
+				if (point._view.skip && vm.skipNull && !this._loop) {
+					ctx.lineTo(previous._view.x, point._view.y);
+					ctx.moveTo(next._view.x, point._view.y);
+				}
+				// End Skip Stright line from the base line
+				else if (previous._view.skip && vm.skipNull && !this._loop) {
+					ctx.moveTo(point._view.x, previous._view.y);
+					ctx.lineTo(point._view.x, point._view.y);
+				}
+
+				if (previous._view.skip && vm.skipNull) {
+					ctx.moveTo(point._view.x, point._view.y);
+				}
+				// Normal Bezier Curve
+				else {
+					if (vm.tension > 0) {
+						ctx.bezierCurveTo(
+							previous._view.controlPointNextX,
+							previous._view.controlPointNextY,
+							point._view.controlPointPreviousX,
+							point._view.controlPointPreviousY,
+							point._view.x,
+							point._view.y
+						);
+					} else {
+						ctx.lineTo(point._view.x, point._view.y);
+					}
+				}
+			}, this);
+
+			// For radial scales, loop back around to the first point
+			if (this._loop) {
+				if (vm.tension > 0 && !first._view.skip) {
+
+					ctx.bezierCurveTo(
+						last._view.controlPointNextX,
+						last._view.controlPointNextY,
+						first._view.controlPointPreviousX,
+						first._view.controlPointPreviousY,
+						first._view.x,
+						first._view.y
+					);
+				} else {
+					ctx.lineTo(first._view.x, first._view.y);
+				}
+			}
+
+			// If we had points and want to fill this line, do so.
+			if (this._children.length > 0 && vm.fill) {
+				//Round off the line by going to the base of the chart, back to the start, then fill.
+				ctx.lineTo(this._children[this._children.length - 1]._view.x, vm.scaleZero);
+				ctx.lineTo(this._children[0]._view.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.lineCap = vm.borderCapStyle || Chart.defaults.global.elements.line.borderCapStyle;
+
+			// IE 9 and 10 do not support line dash
+			if (ctx.setLineDash) {
+				ctx.setLineDash(vm.borderDash || Chart.defaults.global.elements.line.borderDash);
+			}
+
+			ctx.lineDashOffset = vm.borderDashOffset || Chart.defaults.global.elements.line.borderDashOffset;
+			ctx.lineJoin = vm.borderJoinStyle || Chart.defaults.global.elements.line.borderJoinStyle;
+			ctx.lineWidth = vm.borderWidth || Chart.defaults.global.elements.line.borderWidth;
+			ctx.strokeStyle = vm.borderColor || Chart.defaults.global.defaultColor;
+			ctx.beginPath();
+
+			helpers.each(this._children, function(point, index) {
+				var previous = helpers.previousItem(this._children, index);
+				var next = helpers.nextItem(this._children, index);
+
+				// First point only
+				if (index === 0) {
+					ctx.moveTo(point._view.x, point._view.y);
+					return;
+				}
+
+				// Start Skip and drag along scale baseline
+				if (point._view.skip && vm.skipNull && !this._loop) {
+					ctx.moveTo(previous._view.x, point._view.y);
+					ctx.moveTo(next._view.x, point._view.y);
+					return;
+				}
+				// End Skip Stright line from the base line
+				if (previous._view.skip && vm.skipNull && !this._loop) {
+					ctx.moveTo(point._view.x, previous._view.y);
+					ctx.moveTo(point._view.x, point._view.y);
+					return;
+				}
+
+				if (previous._view.skip && vm.skipNull) {
+					ctx.moveTo(point._view.x, point._view.y);
+					return;
+				}
+				// Normal Bezier Curve
+				if (vm.tension > 0) {
+					ctx.bezierCurveTo(
+						previous._view.controlPointNextX,
+						previous._view.controlPointNextY,
+						point._view.controlPointPreviousX,
+						point._view.controlPointPreviousY,
+						point._view.x,
+						point._view.y
+					);
+				} else {
+					ctx.lineTo(point._view.x, point._view.y);
+				}
+			}, this);
+
+			if (this._loop && !first._view.skip) {
+				if (vm.tension > 0) {
+
+					ctx.bezierCurveTo(
+						last._view.controlPointNextX,
+						last._view.controlPointNextY,
+						first._view.controlPointPreviousX,
+						first._view.controlPointPreviousY,
+						first._view.x,
+						first._view.y
+					);
+				} else {
+					ctx.lineTo(first._view.x, first._view.y);
+				}
+			}
+
+			ctx.stroke();
+			ctx.restore();
+		},
+	});
+
+}).call(this);

src/elements/element.point.js

@@ -0,0 +1,89 @@
+/*!
+ * Chart.js
+ * http://chartjs.org/
+ * Version: {{ version }}
+ *
+ * Copyright 2015 Nick Downie
+ * Released under the MIT license
+ * https://github.com/nnnick/Chart.js/blob/master/LICENSE.md
+ */
+
+
+(function() {
+
+	"use strict";
+
+	var root = this,
+		Chart = root.Chart,
+		helpers = Chart.helpers;
+
+	Chart.defaults.global.elements.point = {
+		radius: 3,
+		backgroundColor: Chart.defaults.global.defaultColor,
+		borderWidth: 1,
+		borderColor: Chart.defaults.global.defaultColor,
+		// Hover
+		hitRadius: 1,
+		hoverRadius: 4,
+		hoverBorderWidth: 1,
+	};
+
+
+	Chart.elements.Point = Chart.Element.extend({
+		inRange: function(mouseX, mouseY) {
+			var vm = this._view;
+
+			if (vm) {
+				var hoverRange = vm.hitRadius + vm.radius;
+				return ((Math.pow(mouseX - vm.x, 2) + Math.pow(mouseY - vm.y, 2)) < Math.pow(hoverRange, 2));
+			} else {
+				return false;
+			}
+		},
+		inLabelRange: function(mouseX) {
+			var vm = this._view;
+
+			if (vm) {
+				return (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hitRadius, 2));
+			} else {
+				return false;
+			}
+		},
+		tooltipPosition: function() {
+			var vm = this._view;
+			return {
+				x: vm.x,
+				y: vm.y,
+				padding: vm.radius + vm.borderWidth
+			};
+		},
+		draw: function() {
+
+			var vm = this._view;
+			var ctx = this._chart.ctx;
+
+
+			if (vm.skip) {
+				return;
+			}
+
+			if (vm.radius > 0 || vm.borderWidth > 0) {
+
+				ctx.beginPath();
+
+				ctx.arc(vm.x, vm.y, vm.radius || Chart.defaults.global.elements.point.radius, 0, Math.PI * 2);
+				ctx.closePath();
+
+				ctx.strokeStyle = vm.borderColor || Chart.defaults.global.defaultColor;
+				ctx.lineWidth = vm.borderWidth || Chart.defaults.global.elements.point.borderWidth;
+
+				ctx.fillStyle = vm.backgroundColor || Chart.defaults.global.defaultColor;
+
+				ctx.fill();
+				ctx.stroke();
+			}
+		}
+	});
+
+
+}).call(this);

src/elements/element.rectangle.js

@@ -0,0 +1,97 @@
+(function() {
+
+	"use strict";
+
+	var root = this,
+		Chart = root.Chart,
+		helpers = Chart.helpers;
+
+	Chart.defaults.global.elements.rectangle = {
+		backgroundColor: Chart.defaults.global.defaultColor,
+		borderWidth: 0,
+		borderColor: Chart.defaults.global.defaultColor,
+	};
+
+	Chart.elements.Rectangle = Chart.Element.extend({
+		draw: function() {
+
+			var ctx = this._chart.ctx;
+			var vm = this._view;
+
+			var halfWidth = vm.width / 2,
+				leftX = vm.x - halfWidth,
+				rightX = vm.x + halfWidth,
+				top = vm.base - (vm.base - vm.y),
+				halfStroke = vm.borderWidth / 2;
+
+			// Canvas doesn't allow us to stroke inside the width so we can
+			// adjust the sizes to fit if we're setting a stroke on the line
+			if (vm.borderWidth) {
+				leftX += halfStroke;
+				rightX -= halfStroke;
+				top += halfStroke;
+			}
+
+			ctx.beginPath();
+
+			ctx.fillStyle = vm.backgroundColor;
+			ctx.strokeStyle = vm.borderColor;
+			ctx.lineWidth = vm.borderWidth;
+
+			// 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._view;
+			return vm.base - vm.y;
+		},
+		inRange: function(mouseX, mouseY) {
+			var vm = this._view;
+			var inRange = false;
+
+			if (vm) {
+				if (vm.y < vm.base) {
+					inRange = (mouseX >= vm.x - vm.width / 2 && mouseX <= vm.x + vm.width / 2) && (mouseY >= vm.y && mouseY <= vm.base);
+				} else {
+					inRange = (mouseX >= vm.x - vm.width / 2 && mouseX <= vm.x + vm.width / 2) && (mouseY >= vm.base && mouseY <= vm.y);
+				}
+			}
+
+			return inRange;
+		},
+		inLabelRange: function(mouseX) {
+			var vm = this._view;
+
+			if (vm) {
+				return (mouseX >= vm.x - vm.width / 2 && mouseX <= vm.x + vm.width / 2);
+			} else {
+				return false;
+			}
+		},
+		tooltipPosition: function() {
+			var vm = this._view;
+			if (vm.y < vm.base) {
+				return {
+					x: vm.x,
+					y: vm.y
+				};
+			} else {
+				return {
+					x: vm.x,
+					y: vm.base
+				};
+			}
+		},
+	});
+
+
+
+}).call(this);

src/scales/scale.category.js

@@ -0,0 +1,47 @@
+(function() {
+    "use strict";
+
+    var root = this,
+        Chart = root.Chart,
+        helpers = Chart.helpers;
+
+    // Default config for a category scale
+    var defaultConfig = {
+        position: "bottom",
+    };
+
+    var DatasetScale = Chart.Scale.extend({
+        buildTicks: function(index) {
+            this.ticks = this.data.labels;
+        },
+
+        // Used to get data value locations.  Value can either be an index or a numerical value
+        getPixelForValue: function(value, index, datasetIndex, includeOffset) {
+
+            if (this.isHorizontal()) {
+                var innerWidth = this.width - (this.paddingLeft + this.paddingRight);
+                var valueWidth = innerWidth / Math.max((this.data.labels.length - ((this.options.gridLines.offsetGridLines) ? 0 : 1)), 1);
+                var valueOffset = (valueWidth * index) + this.paddingLeft;
+
+                if (this.options.gridLines.offsetGridLines && includeOffset) {
+                    valueOffset += (valueWidth / 2);
+                }
+
+                return this.left + Math.round(valueOffset);
+            } else {
+                var innerHeight = this.height - (this.paddingTop + this.paddingBottom);
+                var valueHeight = innerHeight / Math.max((this.data.labels.length - ((this.options.gridLines.offsetGridLines) ? 0 : 1)), 1);
+                var valueOffset = (valueHeight * index) + this.paddingTop;
+
+                if (this.options.gridLines.offsetGridLines && includeOffset) {
+                    valueOffset += (valueHeight / 2);
+                }
+
+                return this.top + Math.round(valueOffset);
+            }
+        },
+    });
+
+    Chart.scaleService.registerScaleType("category", DatasetScale, defaultConfig);
+
+}).call(this);

src/scales/scale.linear.js

@@ -0,0 +1,177 @@
+(function() {
+	"use strict";
+
+	var root = this,
+		Chart = root.Chart,
+		helpers = Chart.helpers;
+
+	var defaultConfig = {
+		position: "left",
+	};
+
+	var LinearScale = Chart.Scale.extend({
+		buildTicks: function() {
+
+			// First Calculate the range
+			this.min = null;
+			this.max = null;
+
+			var positiveValues = [];
+			var negativeValues = [];
+
+			if (this.options.stacked) {
+				helpers.each(this.data.datasets, function(dataset) {
+					if (this.isHorizontal() ? dataset.xAxisID === this.id : dataset.yAxisID === this.id) {
+						helpers.each(dataset.data, function(rawValue, index) {
+
+							var value = this.getRightValue(rawValue);
+
+							positiveValues[index] = positiveValues[index] || 0;
+							negativeValues[index] = negativeValues[index] || 0;
+
+							if (this.options.relativePoints) {
+								positiveValues[index] = 100;
+							} else {
+								if (value < 0) {
+									negativeValues[index] += value;
+								} else {
+									positiveValues[index] += value;
+								}
+							}
+						}, this);
+					}
+				}, this);
+
+				var values = positiveValues.concat(negativeValues);
+				this.min = helpers.min(values);
+				this.max = helpers.max(values);
+
+			} else {
+				helpers.each(this.data.datasets, function(dataset) {
+					if (this.isHorizontal() ? dataset.xAxisID === this.id : dataset.yAxisID === this.id) {
+						helpers.each(dataset.data, function(rawValue, index) {
+							var value = this.getRightValue(rawValue);
+
+							if (this.min === null) {
+								this.min = value;
+							} else if (value < this.min) {
+								this.min = value;
+							}
+
+							if (this.max === null) {
+								this.max = value;
+							} else if (value > this.max) {
+								this.max = value;
+							}
+						}, this);
+					}
+				}, this);
+			}
+
+			if (this.min === this.max) {
+				this.min--;
+				this.max++;
+			}
+
+
+			// Then calulate the ticks
+			this.ticks = [];
+
+			// Figure out what the max number of ticks we can support it is based on the size of
+			// the axis area. For now, we say that the minimum tick spacing in pixels must be 50
+			// We also limit the maximum number of ticks to 11 which gives a nice 10 squares on 
+			// the graph
+
+			var maxTicks;
+
+			if (this.isHorizontal()) {
+				maxTicks = Math.min(11, Math.ceil(this.width / 50));
+			} else {
+				// The factor of 2 used to scale the font size has been experimentally determined.
+				maxTicks = Math.min(11, Math.ceil(this.height / (2 * this.options.ticks.fontSize)));
+			}
+
+			// Make sure we always have at least 2 ticks 
+			maxTicks = Math.max(2, maxTicks);
+
+			// To get a "nice" value for the tick spacing, we will use the appropriately named 
+			// "nice number" algorithm. See http://stackoverflow.com/questions/8506881/nice-label-algorithm-for-charts-with-minimum-ticks
+			// for details.
+
+			// If we are forcing it to begin at 0, but 0 will already be rendered on the chart,
+			// do nothing since that would make the chart weird. If the user really wants a weird chart
+			// axis, they can manually override it
+			if (this.options.ticks.beginAtZero) {
+				var minSign = helpers.sign(this.min);
+				var maxSign = helpers.sign(this.max);
+
+				if (minSign < 0 && maxSign < 0) {
+					// move the top up to 0
+					this.max = 0;
+				} else if (minSign > 0 && maxSign > 0) {
+					// move the botttom down to 0
+					this.min = 0;
+				}
+			}
+
+			var niceRange = helpers.niceNum(this.max - this.min, false);
+			var spacing = helpers.niceNum(niceRange / (maxTicks - 1), true);
+			var niceMin = Math.floor(this.min / spacing) * spacing;
+			var niceMax = Math.ceil(this.max / spacing) * spacing;
+
+			// Put the values into the ticks array
+			for (var j = niceMin; j <= niceMax; j += spacing) {
+				this.ticks.push(j);
+			}
+
+			if (this.options.position == "left" || this.options.position == "right") {
+				// We are in a vertical orientation. The top value is the highest. So reverse the array
+				this.ticks.reverse();
+			}
+
+			// At this point, we need to update our max and min given the tick values since we have expanded the
+			// range of the scale
+			this.max = helpers.max(this.ticks);
+			this.min = helpers.min(this.ticks);
+
+			if (this.options.ticks.reverse) {
+				this.ticks.reverse();
+
+				this.start = this.max;
+				this.end = this.min;
+			} else {
+				this.start = this.min;
+				this.end = this.max;
+			}
+
+			this.zeroLineIndex = this.ticks.indexOf(0);
+		},
+
+		// Utils
+		getPixelForValue: function(value, index, datasetIndex, includeOffset) {
+			// This must be called after fit has been run so that 
+			//      this.left, this.top, this.right, and this.bottom have been defined
+			var pixel;
+			var range = this.end - this.start;
+
+			if (this.isHorizontal()) {
+
+				var innerWidth = this.width - (this.paddingLeft + this.paddingRight);
+				pixel = this.left + (innerWidth / range * (this.getRightValue(value) - this.start));
+				return Math.round(pixel + this.paddingLeft);
+			} else {
+				var innerHeight = this.height - (this.paddingTop + this.paddingBottom);
+				pixel = (this.bottom - this.paddingBottom) - (innerHeight / range * (this.getRightValue(value) - this.start));
+				return Math.round(pixel);
+			}
+		},
+
+		// Get the correct value. If the value type is object get the x or y based on whether we are horizontal or not
+		getRightValue: function(rawValue) {
+			return (typeof(rawValue) === "object" && rawValue !== null) ? (this.isHorizontal() ? rawValue.x : rawValue.y) : rawValue;
+		},
+
+	});
+	Chart.scaleService.registerScaleType("linear", LinearScale, defaultConfig);
+
+}).call(this);

src/scales/scale.logarithmic.js

@@ -0,0 +1,161 @@
+(function() {
+	"use strict";
+
+	var root = this,
+		Chart = root.Chart,
+		helpers = Chart.helpers;
+
+	var defaultConfig = {
+		position: "left",
+
+		// label settings
+		ticks: {
+			template: "<%var remain = value / (Math.pow(10, Math.floor(Chart.helpers.log10(value))));if (remain === 1 || remain === 2 || remain === 5) {%><%=value.toExponential()%><%} else {%><%= null %><%}%>",
+		}
+	};
+
+	var LogarithmicScale = Chart.Scale.extend({
+		buildTicks: function() {
+
+			// Calculate Range (we may break this out into it's own lifecycle function)
+
+			this.min = null;
+			this.max = null;
+
+			var values = [];
+
+			if (this.options.stacked) {
+				helpers.each(this.data.datasets, function(dataset) {
+					if (this.isHorizontal() ? dataset.xAxisID === this.id : dataset.yAxisID === this.id) {
+						helpers.each(dataset.data, function(rawValue, index) {
+
+							var value = this.getRightValue(rawValue);
+
+							values[index] = values[index] || 0;
+
+							if (this.options.relativePoints) {
+								values[index] = 100;
+							} else {
+								// Don't need to split positive and negative since the log scale can't handle a 0 crossing
+								values[index] += value;
+							}
+						}, this);
+					}
+				}, this);
+
+				this.min = helpers.min(values);
+				this.max = helpers.max(values);
+
+			} else {
+				helpers.each(this.data.datasets, function(dataset) {
+					if (this.isHorizontal() ? dataset.xAxisID === this.id : dataset.yAxisID === this.id) {
+						helpers.each(dataset.data, function(rawValue, index) {
+							var value = this.getRightValue(rawValue);
+
+							if (this.min === null) {
+								this.min = value;
+							} else if (value < this.min) {
+								this.min = value;
+							}
+
+							if (this.max === null) {
+								this.max = value;
+							} else if (value > this.max) {
+								this.max = value;
+							}
+						}, this);
+					}
+				}, this);
+			}
+
+			if (this.min === this.max) {
+				if (this.min !== 0 && this.min !== null) {
+					this.min = Math.pow(10, Math.floor(helpers.log10(this.min)) - 1);
+					this.max = Math.pow(10, Math.floor(helpers.log10(this.max)) + 1);
+				} else {
+					this.min = 1;
+					this.max = 10;
+				}
+			}
+
+
+			// Reset the ticks array. Later on, we will draw a grid line at these positions
+			// The array simply contains the numerical value of the spots where ticks will be
+			this.tickValues = [];
+
+			// Figure out what the max number of ticks we can support it is based on the size of
+			// the axis area. For now, we say that the minimum tick spacing in pixels must be 50
+			// We also limit the maximum number of ticks to 11 which gives a nice 10 squares on 
+			// the graph
+
+			var minExponent = Math.floor(helpers.log10(this.min));
+			var maxExponent = Math.ceil(helpers.log10(this.max));
+
+			for (var exponent = minExponent; exponent < maxExponent; ++exponent) {
+				for (var i = 1; i < 10; ++i) {
+					this.tickValues.push(i * Math.pow(10, exponent));
+				}
+			}
+
+			this.tickValues.push(1.0 * Math.pow(10, maxExponent));
+
+			if (this.options.position == "left" || this.options.position == "right") {
+				// We are in a vertical orientation. The top value is the highest. So reverse the array
+				this.tickValues.reverse();
+			}
+
+			// At this point, we need to update our max and min given the tick values since we have expanded the
+			// range of the scale
+			this.max = helpers.max(this.tickValues);
+			this.min = helpers.min(this.tickValues);
+
+			if (this.options.ticks.reverse) {
+				this.tickValues.reverse();
+
+				this.start = this.max;
+				this.end = this.min;
+			} else {
+				this.start = this.min;
+				this.end = this.max;
+			}
+
+			this.ticks = this.tickValues.slice();
+		},
+		// Get the correct value. If the value type is object get the x or y based on whether we are horizontal or not
+		getRightValue: function(rawValue) {
+			return typeof rawValue === "object" ? (this.isHorizontal() ? rawValue.x : rawValue.y) : rawValue;
+		},
+		getPixelForTick: function(index, includeOffset) {
+			return this.getPixelForValue(this.tickValues[index], null, null, includeOffset);
+		},
+		getPixelForValue: function(value, index, datasetIndex, includeOffset) {
+			var pixel;
+
+			var newVal = this.getRightValue(value);
+			var range = helpers.log10(this.end) - helpers.log10(this.start);
+
+			if (this.isHorizontal()) {
+
+				if (newVal === 0) {
+					pixel = this.left + this.paddingLeft;
+				} else {
+					var innerWidth = this.width - (this.paddingLeft + this.paddingRight);
+					pixel = this.left + (innerWidth / range * (helpers.log10(newVal) - helpers.log10(this.start)));
+					return pixel + this.paddingLeft;
+				}
+			} else {
+				// Bottom - top since pixels increase downard on a screen
+				if (newVal === 0) {
+					pixel = this.top + this.paddingTop;
+				} else {
+					var innerHeight = this.height - (this.paddingTop + this.paddingBottom);
+					return (this.bottom - this.paddingBottom) - (innerHeight / range * (helpers.log10(newVal) - helpers.log10(this.start)));
+				}
+			}
+
+		},
+
+	});
+	Chart.scaleService.registerScaleType("logarithmic", LogarithmicScale, defaultConfig);
+
+}).call(this);

src/scales/scale.radialLinear.js

@@ -0,0 +1,396 @@
+(function() {
+	"use strict";
+
+	var root = this,
+		Chart = root.Chart,
+		helpers = Chart.helpers;
+
+	var defaultConfig = {
+		display: true,
+
+		//Boolean - Whether to animate scaling the chart from the centre
+		animate: true,
+		lineArc: false,
+		position: "chartArea",
+
+		angleLines: {
+			show: true,
+			color: "rgba(0, 0, 0, 0.1)",
+			lineWidth: 1
+		},
+
+		// label settings
+		ticks: {
+			//Boolean - Show a backdrop to the scale label
+			showLabelBackdrop: true,
+
+			//String - The colour of the label backdrop
+			backdropColor: "rgba(255,255,255,0.75)",
+
+			//Number - The backdrop padding above & below the label in pixels
+			backdropPaddingY: 2,
+
+			//Number - The backdrop padding to the side of the label in pixels
+			backdropPaddingX: 2,
+		},
+
+		pointLabels: {
+			//String - Point label font declaration
+			fontFamily: "'Arial'",
+
+			//String - Point label font weight
+			fontStyle: "normal",
+
+			//Number - Point label font size in pixels
+			fontSize: 10,
+
+			//String - Point label font colour
+			fontColor: "#666",
+		},
+	};
+
+	var LinearRadialScale = Chart.Scale.extend({
+		getValueCount: function() {
+			return this.data.labels.length;
+		},
+		setDimensions: function() {
+			// Set the unconstrained dimension before label rotation
+			this.width = this.maxWidth;
+			this.height = this.maxHeight;
+			this.xCenter = Math.round(this.width / 2);
+			this.yCenter = Math.round(this.height / 2);
+			
+			var minSize = helpers.min([this.height, this.width]);
+			this.drawingArea = (this.options.display) ? (minSize / 2) - (this.options.ticks.fontSize / 2 + this.options.ticks.backdropPaddingY) : (minSize / 2);
+		},
+		buildTicks: function() {
+			this.min = null;
+			this.max = null;
+
+			helpers.each(this.data.datasets, function(dataset) {
+				helpers.each(dataset.data, function(value, index) {
+					if (value === null) return;
+
+					if (this.min === null) {
+						this.min = value;
+					} else if (value < this.min) {
+						this.min = value;
+					}
+
+					if (this.max === null) {
+						this.max = value;
+					} else if (value > this.max) {
+						this.max = value;
+					}
+				}, this);
+			}, this);
+
+			if (this.min === this.max) {
+				this.min--;
+				this.max++;
+			}
+
+			this.ticks = [];
+
+			// Figure out what the max number of ticks we can support it is based on the size of
+			// the axis area. For now, we say that the minimum tick spacing in pixels must be 50
+			// We also limit the maximum number of ticks to 11 which gives a nice 10 squares on 
+			// the graph
+			var maxTicks = Math.min(11, Math.ceil(this.drawingArea / (1.5 * this.options.ticks.fontSize)));
+			maxTicks = Math.max(2, maxTicks); // Make sure we always have at least 2 ticks 
+
+			// To get a "nice" value for the tick spacing, we will use the appropriately named 
+			// "nice number" algorithm. See http://stackoverflow.com/questions/8506881/nice-label-algorithm-for-charts-with-minimum-ticks
+			// for details.
+
+			// If we are forcing it to begin at 0, but 0 will already be rendered on the chart,
+			// do nothing since that would make the chart weird. If the user really wants a weird chart
+			// axis, they can manually override it
+			if (this.options.ticks.beginAtZero) {
+				var minSign = helpers.sign(this.min);
+				var maxSign = helpers.sign(this.max);
+
+				if (minSign < 0 && maxSign < 0) {
+					// move the top up to 0
+					this.max = 0;
+				} else if (minSign > 0 && maxSign > 0) {
+					// move the botttom down to 0
+					this.min = 0;
+				}
+			}
+
+			var niceRange = helpers.niceNum(this.max - this.min, false);
+			var spacing = helpers.niceNum(niceRange / (maxTicks - 1), true);
+			var niceMin = Math.floor(this.min / spacing) * spacing;
+			var niceMax = Math.ceil(this.max / spacing) * spacing;
+
+			// Put the values into the ticks array
+			for (var j = niceMin; j <= niceMax; j += spacing) {
+				this.ticks.push(j);
+			}
+
+			// At this point, we need to update our max and min given the tick values since we have expanded the
+			// range of the scale
+			this.max = helpers.max(this.ticks);
+			this.min = helpers.min(this.ticks);
+
+			if (this.options.ticks.reverse) {
+				this.ticks.reverse();
+
+				this.start = this.max;
+				this.end = this.min;
+			} else {
+				this.start = this.min;
+				this.end = this.max;
+			}
+
+			this.zeroLineIndex = this.ticks.indexOf(0);
+		},
+		getCircumference: function() {
+			return ((Math.PI * 2) / this.getValueCount());
+		},
+		fit: function() {
+			/*
+			 * Right, this is really confusing and there is a lot of maths going on here
+			 * The gist of the problem is here: https://gist.github.com/nnnick/696cc9c55f4b0beb8fe9
+			 *
+			 * Reaction: https://dl.dropboxusercontent.com/u/34601363/toomuchscience.gif
+			 *
+			 * Solution:
+			 *
+			 * We assume the radius of the polygon is half the size of the canvas at first
+			 * at each index we check if the text overlaps.
+			 *
+			 * Where it does, we store that angle and that index.
+			 *
+			 * After finding the largest index and angle we calculate how much we need to remove
+			 * from the shape radius to move the point inwards by that x.
+			 *
+			 * We average the left and right distances to get the maximum shape radius that can fit in the box
+			 * along with labels.
+			 *
+			 * Once we have that, we can find the centre point for the chart, by taking the x text protrusion
+			 * on each side, removing that from the size, halving it and adding the left x protrusion width.
+			 *
+			 * This will mean we have a shape fitted to the canvas, as large as it can be with the labels
+			 * and position it in the most space efficient manner
+			 *
+			 * https://dl.dropboxusercontent.com/u/34601363/yeahscience.gif
+			 */
+
+
+			// Get maximum radius of the polygon. Either half the height (minus the text width) or half the width.
+			// Use this to calculate the offset + change. - Make sure L/R protrusion is at least 0 to stop issues with centre points
+			var largestPossibleRadius = helpers.min([(this.height / 2 - this.options.pointLabels.fontSize - 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 = helpers.fontString(this.options.pointLabels.fontSize, this.options.pointLabels.fontStyle, this.options.pointLabels.fontFamily);
+			for (i = 0; i < this.getValueCount(); i++) {
+				// 5px to space the text slightly out - similar to what we do in the draw function.
+				pointPosition = this.getPointPosition(i, largestPossibleRadius);
+				textWidth = this.ctx.measureText(helpers.template(this.options.ticks.template, {
+					value: this.data.labels[i]
+				})).width + 5;
+				if (i === 0 || i === this.getValueCount() / 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.getValueCount() / 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.getValueCount() / 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 = (helpers.isNumber(radiusReductionRight)) ? radiusReductionRight : 0;
+			radiusReductionLeft = (helpers.isNumber(radiusReductionLeft)) ? radiusReductionLeft : 0;
+
+			this.drawingArea = Math.round(largestPossibleRadius - (radiusReductionLeft + radiusReductionRight) / 2);
+			this.setCenterPoint(radiusReductionLeft, radiusReductionRight);
+		},
+		setCenterPoint: function(leftMovement, rightMovement) {
+
+			var maxRight = this.width - rightMovement - this.drawingArea,
+				maxLeft = leftMovement + this.drawingArea;
+
+			this.xCenter = Math.round(((maxLeft + maxRight) / 2) + this.left);
+			// Always vertically in the centre as the text height doesn't change
+			this.yCenter = Math.round((this.height / 2) + this.top);
+		},
+
+		getIndexAngle: function(index) {
+			var angleMultiplier = (Math.PI * 2) / this.getValueCount();
+			// Start from the top instead of right, so remove a quarter of the circle
+
+			return index * angleMultiplier - (Math.PI / 2);
+		},
+		getDistanceFromCenterForValue: function(value) {
+			if (value === null) return 0; // null always in center
+			// Take into account half font size + the yPadding of the top value
+			var scalingFactor = this.drawingArea / (this.max - this.min);
+			if (this.options.reverse) {
+				return (this.max - value) * scalingFactor;
+			} else {
+				return (value - this.min) * scalingFactor;
+			}
+		},
+		getPointPosition: function(index, distanceFromCenter) {
+			var thisAngle = this.getIndexAngle(index);
+			return {
+				x: (Math.cos(thisAngle) * distanceFromCenter) + this.xCenter,
+				y: (Math.sin(thisAngle) * distanceFromCenter) + this.yCenter
+			};
+		},
+		getPointPositionForValue: function(index, value) {
+			return this.getPointPosition(index, this.getDistanceFromCenterForValue(value));
+		},
+		draw: function() {
+			if (this.options.display) {
+				var ctx = this.ctx;
+				helpers.each(this.ticks, function(label, index) {
+					// Don't draw a centre value (if it is minimum)
+					if (index > 0 || this.options.reverse) {
+						var yCenterOffset = this.getDistanceFromCenterForValue(this.ticks[index]);
+						var yHeight = this.yCenter - yCenterOffset;
+
+						// Draw circular lines around the scale
+						if (this.options.gridLines.show) {
+							ctx.strokeStyle = this.options.gridLines.color;
+							ctx.lineWidth = this.options.gridLines.lineWidth;
+
+							if (this.options.lineArc) {
+								// Draw circular arcs between the points
+								ctx.beginPath();
+								ctx.arc(this.xCenter, this.yCenter, yCenterOffset, 0, Math.PI * 2);
+								ctx.closePath();
+								ctx.stroke();
+							} else {
+								// Draw straight lines connecting each index
+								ctx.beginPath();
+								for (var i = 0; i < this.getValueCount(); i++) {
+									var pointPosition = this.getPointPosition(i, this.getDistanceFromCenterForValue(this.ticks[index]));
+									if (i === 0) {
+										ctx.moveTo(pointPosition.x, pointPosition.y);
+									} else {
+										ctx.lineTo(pointPosition.x, pointPosition.y);
+									}
+								}
+								ctx.closePath();
+								ctx.stroke();
+							}
+						}
+
+						if (this.options.ticks.show) {
+							ctx.font = helpers.fontString(this.options.ticks.fontSize, this.options.ticks.fontStyle, this.options.ticks.fontFamily);
+
+							if (this.options.ticks.showLabelBackdrop) {
+								var labelWidth = ctx.measureText(label).width;
+								ctx.fillStyle = this.options.ticks.backdropColor;
+								ctx.fillRect(
+									this.xCenter - labelWidth / 2 - this.options.ticks.backdropPaddingX,
+									yHeight - this.options.ticks.fontSize / 2 - this.options.ticks.backdropPaddingY,
+									labelWidth + this.options.ticks.backdropPaddingX * 2,
+									this.options.ticks.fontSize + this.options.ticks.backdropPaddingY * 2
+								);
+							}
+
+							ctx.textAlign = 'center';
+							ctx.textBaseline = "middle";
+							ctx.fillStyle = this.options.ticks.fontColor;
+							ctx.fillText(label, this.xCenter, yHeight);
+						}
+					}
+				}, this);
+
+				if (!this.options.lineArc) {
+					ctx.lineWidth = this.options.angleLines.lineWidth;
+					ctx.strokeStyle = this.options.angleLines.color;
+
+					for (var i = this.getValueCount() - 1; i >= 0; i--) {
+						if (this.options.angleLines.show) {
+							var outerPosition = this.getPointPosition(i, this.getDistanceFromCenterForValue(this.options.reverse ? this.min : 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.getDistanceFromCenterForValue(this.options.reverse ? this.min : this.max) + 5);
+						ctx.font = helpers.fontString(this.options.pointLabels.fontSize, this.options.pointLabels.fontStyle, this.options.pointLabels.fontFamily);
+						ctx.fillStyle = this.options.pointLabels.fontColor;
+
+						var labelsCount = this.data.labels.length,
+							halfLabelsCount = this.data.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.data.labels[i], pointLabelPosition.x, pointLabelPosition.y);
+					}
+				}
+			}
+		}
+	});
+	Chart.scaleService.registerScaleType("radialLinear", LinearRadialScale, defaultConfig);
+
+
+}).call(this);

src/scales/scale.time.js

@@ -0,0 +1,194 @@
+(function() {
+	"use strict";
+
+	if (!window.moment) {
+		console.warn('Chart.js - Moment.js could not be found! You must include it before Chart.js to use the time scale. Download at http://momentjs.com/');
+		return;
+	}
+
+	var root = this,
+		Chart = root.Chart,
+		helpers = Chart.helpers;
+
+	var time = {
+		units: [
+			'millisecond',
+			'second',
+			'minute',
+			'hour',
+			'day',
+			'week',
+			'month',
+			'quarter',
+			'year',
+		],
+		unit: {
+			'millisecond': {
+				display: 'SSS [ms]', // 002 ms
+				maxStep: 1000,
+			},
+			'second': {
+				display: 'h:mm:ss a', // 11:20:01 AM
+				maxStep: 60,
+			},
+			'minute': {
+				display: 'h:mm:ss a', // 11:20:01 AM
+				maxStep: 60,
+			},
+			'hour': {
+				display: 'MMM D, hA', // Sept 4, 5PM
+				maxStep: 24,
+			},
+			'day': {
+				display: 'll', // Sep 4 2015
+				maxStep: 7,
+			},
+			'week': {
+				display: 'll', // Week 46, or maybe "[W]WW - YYYY" ?
+				maxStep: 4.3333,
+			},
+			'month': {
+				display: 'MMM YYYY', // Sept 2015
+				maxStep: 12,
+			},
+			'quarter': {
+				display: '[Q]Q - YYYY', // Q3
+				maxStep: 4,
+			},
+			'year': {
+				display: 'YYYY', // 2015
+				maxStep: false,
+			},
+		}
+	};
+
+	var defaultConfig = {
+		position: "bottom",
+
+		time: {
+			format: false, // false == date objects or use pattern string from http://momentjs.com/docs/#/parsing/string-format/
+			unit: false, // false == automatic or override with week, month, year, etc.
+			round: false, // none, or override with week, month, year, etc.
+			displayFormat: false, // defaults to unit's corresponding unitFormat below or override using pattern string from http://momentjs.com/docs/#/displaying/format/
+		},
+	};
+
+	var TimeScale = Chart.Scale.extend({
+		buildTicks: function(index) {
+
+			this.ticks = [];
+			this.labelMoments = [];
+
+			// Parse each label into a moment
+			this.data.labels.forEach(function(label, index) {
+				var labelMoment = this.parseTime(label);
+				if (this.options.time.round) {
+					labelMoment.startOf(this.options.time.round);
+				}
+				this.labelMoments.push(labelMoment);
+			}, this);
+
+			// Find the first and last moments, and range
+			this.firstTick = moment.min.call(this, this.labelMoments).clone();
+			this.lastTick = moment.max.call(this, this.labelMoments).clone();
+
+			// Set unit override if applicable
+			if (this.options.time.unit) {
+				this.tickUnit = this.options.time.unit || 'day';
+				this.displayFormat = time.unit[this.tickUnit].display;
+				this.tickRange = Math.ceil(this.lastTick.diff(this.firstTick, this.tickUnit, true));
+			} else {
+				// Determine the smallest needed unit of the time
+				var innerWidth = this.width - (this.paddingLeft + this.paddingRight);
+				var labelCapacity = innerWidth / this.options.ticks.fontSize + 4;
+				var buffer = this.options.time.round ? 0 : 2;
+
+				// Start as small as possible
+				this.tickUnit = 'millisecond';
+				this.tickRange = Math.ceil(this.lastTick.diff(this.firstTick, this.tickUnit, true) + buffer);
+				this.displayFormat = time.unit[this.tickUnit].display;
+
+				// Work our way up to comfort
+				helpers.each(time.units, function(format) {
+					if (this.tickRange <= labelCapacity) {
+						return;
+					}
+					this.tickUnit = format;
+					this.tickRange = Math.ceil(this.lastTick.diff(this.firstTick, this.tickUnit) + buffer);
+					this.displayFormat = time.unit[format].display;
+
+				}, this);
+			}
+
+			this.firstTick.startOf(this.tickUnit);
+			this.lastTick.endOf(this.tickUnit);
+			this.smallestLabelSeparation = this.width;
+
+			var i = 0;
+
+			for (i = 1; i < this.labelMoments.length; i++) {
+				this.smallestLabelSeparation = Math.min(this.smallestLabelSeparation, this.labelMoments[i].diff(this.labelMoments[i - 1], this.tickUnit, true));
+			}
+
+			// Tick displayFormat override
+			if (this.options.time.displayFormat) {
+				this.displayFormat = this.options.time.displayFormat;
+			}
+
+			// For every unit in between the first and last moment, create a moment and add it to the ticks tick
+			for (i = 0; i <= this.tickRange; ++i) {
+				this.ticks.push(this.firstTick.clone().add(i, this.tickUnit));
+			}
+		},
+		convertTicksToLabels: function() {
+			this.ticks = this.ticks.map(function(tick, index, ticks) {
+				var formattedTick = tick.format(this.options.time.displayFormat ? this.options.time.displayFormat : time.unit[this.tickUnit].display);
+
+				if (this.options.ticks.userCallback) {
+					return this.options.ticks.userCallback(formattedTick, index, ticks);
+				} else {
+					return formattedTick;
+				}
+			}, this);
+		},
+		getPixelForValue: function(value, index, datasetIndex, includeOffset) {
+
+			var offset = this.labelMoments[index].diff(this.firstTick, this.tickUnit, true);
+
+			var decimal = offset / this.tickRange;
+
+			if (this.isHorizontal()) {
+				var innerWidth = this.width - (this.paddingLeft + this.paddingRight);
+				var valueWidth = innerWidth / Math.max(this.ticks.length - 1, 1);
+				var valueOffset = (innerWidth * decimal) + this.paddingLeft;
+
+				return this.left + Math.round(valueOffset);
+			} else {
+				//return this.top + (decimal * (this.height / this.ticks.length));
+				var innerHeight = this.height - (this.paddingTop + this.paddingBottom);
+				var valueHeight = innerHeight / Math.max(this.ticks.length - 1, 1);
+				var heightOffset = (innerHeight * decimal) + this.paddingTop;
+
+				return this.top + Math.round(heightOffset);
+			}
+		},
+		parseTime: function(label) {
+			// Date objects
+			if (typeof label.getMonth === 'function' || typeof label == 'number') {
+				return moment(label);
+			}
+			// Moment support
+			if (label.isValid && label.isValid()) {
+				return label;
+			}
+			// Custom parsing (return an instance of moment)
+			if (typeof this.options.time.format !== 'string' && this.options.time.format.call) {
+				return this.options.time.format(label);
+			}
+			// Moment format parsing
+			return moment(label, this.options.time.format);
+		},
+	});
+	Chart.scaleService.registerScaleType("time", TimeScale, defaultConfig);
+
+}).call(this);

test/controller.bar.tests.js

@@ -0,0 +1,586 @@
+// Test the bar controller
+describe('Bar controller tests', function() {
+	it('Should be constructed', function() {
+		var chart = {
+			data: {
+				datasets: [{
+
+				}, {
+					xAxisID: 'myXAxis',
+					yAxisID: 'myYAxis',
+					data: []
+				}]
+			}
+		};
+
+		var controller = new Chart.controllers.bar(chart, 1);
+		expect(controller).not.toBe(undefined);
+		expect(controller.index).toBe(1);
+		expect(chart.data.datasets[1].metaData).toEqual([]);
+
+		controller.updateIndex(0);
+		expect(controller.index).toBe(0);
+	});
+
+	it('Should use the first scale IDs if the dataset does not specify them', function() {
+		var chart = {
+			data: {
+				datasets: [{
+
+				}, {
+					data: []
+				}]
+			},
+			options: {
+				scales: {
+					xAxes: [{
+						id: 'firstXScaleID'
+					}],
+					yAxes: [{
+						id: 'firstYScaleID'
+					}]
+				}
+			}
+		};
+
+		var controller = new Chart.controllers.bar(chart, 1);
+		expect(chart.data.datasets[1].xAxisID).toBe('firstXScaleID');
+		expect(chart.data.datasets[1].yAxisID).toBe('firstYScaleID');
+	});
+
+	it('should correctly count the number of bar datasets', function() {
+		var chart = {
+			data: {
+				datasets: [{
+					type: 'line'
+				}, {
+					type: 'bar'
+				}, {
+					// no type, defaults to bar
+				}]
+			},
+			config: {
+				type: 'bar'
+			},
+			options: {
+				scales: {
+					xAxes: [{
+						id: 'firstXScaleID'
+					}],
+					yAxes: [{
+						id: 'firstYScaleID'
+					}]
+				}
+			}
+		};
+
+		var controller = new Chart.controllers.bar(chart, 1);
+		expect(controller.getBarCount()).toBe(2);
+	});
+
+	it('Should create rectangle elements for each data item during initialization', function() {
+		var chart = {
+			data: {
+				datasets: [{}, {
+					data: [10, 15, 0, -4]
+				}]
+			},
+			config: {
+				type: 'bar'
+			},
+			options: {
+				scales: {
+					xAxes: [{
+						id: 'firstXScaleID'
+					}],
+					yAxes: [{
+						id: 'firstYScaleID'
+					}]
+				}
+			}
+		};
+
+		var controller = new Chart.controllers.bar(chart, 1);
+
+		expect(chart.data.datasets[1].metaData.length).toBe(4); // 4 rectangles created
+		expect(chart.data.datasets[1].metaData[0] instanceof Chart.elements.Rectangle).toBe(true);
+		expect(chart.data.datasets[1].metaData[1] instanceof Chart.elements.Rectangle).toBe(true);
+		expect(chart.data.datasets[1].metaData[2] instanceof Chart.elements.Rectangle).toBe(true);
+		expect(chart.data.datasets[1].metaData[3] instanceof Chart.elements.Rectangle).toBe(true);
+	});
+
+	it('should remove elements', function() {
+		var chart = {
+			data: {
+				datasets: [{}, {
+					data: [10, 15, 0, -4]
+				}]
+			},
+			config: {
+				type: 'bar'
+			},
+			options: {
+				scales: {
+					xAxes: [{
+						id: 'firstXScaleID'
+					}],
+					yAxes: [{
+						id: 'firstYScaleID'
+					}]
+				}
+			}
+		};
+
+		var controller = new Chart.controllers.bar(chart, 1);
+		controller.removeElement(1);
+		expect(chart.data.datasets[1].metaData.length).toBe(3);
+	});
+
+	it('should update elements', function() {
+		var data = {
+			datasets: [{
+				data: [1, 2],
+				label: 'dataset1',
+				xAxisID: 'firstXScaleID',
+				yAxisID: 'firstYScaleID'
+			}, {
+				data: [10, 15, 0, -4],
+				label: 'dataset2'
+			}],
+			labels: ['label1', 'label2', 'label3', 'label4']
+		};
+		var mockContext = window.createMockContext();
+
+		var VerticalScaleConstructor = Chart.scaleService.getScaleConstructor('linear');
+		var verticalScaleConfig = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('linear'));
+		verticalScaleConfig = Chart.helpers.scaleMerge(verticalScaleConfig, Chart.defaults.bar.scales.yAxes[0]);
+		var yScale = new VerticalScaleConstructor({
+			ctx: mockContext,
+			options: verticalScaleConfig,
+			data: data,
+			id: 'firstYScaleID'
+		});
+
+		// Update ticks & set physical dimensions
+		var verticalSize = yScale.update(50, 200);
+		yScale.top = 0;
+		yScale.left = 0;
+		yScale.right = verticalSize.width;
+		yScale.bottom = verticalSize.height;
+
+		var HorizontalScaleConstructor = Chart.scaleService.getScaleConstructor('category');
+		var horizontalScaleConfig = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('category'));
+		horizontalScaleConfig = Chart.helpers.scaleMerge(horizontalScaleConfig, Chart.defaults.bar.scales.xAxes[0]);
+		var xScale = new HorizontalScaleConstructor({
+			ctx: mockContext,
+			options: horizontalScaleConfig,
+			data: data,
+			id: 'firstXScaleID'
+		});
+
+		// Update ticks & set physical dimensions
+		var horizontalSize = xScale.update(200, 50);
+		xScale.left = yScale.right;
+		xScale.top = yScale.bottom;
+		xScale.right = horizontalSize.width + xScale.left;
+		xScale.bottom = horizontalSize.height + xScale.top;
+
+		var chart = {
+			data: data,
+			config: {
+				type: 'bar'
+			},
+			options: {
+				elements: {
+					rectangle: {
+						backgroundColor: 'rgb(255, 0, 0)',
+						borderColor: 'rgb(0, 0, 255)',
+						borderWidth: 2,
+					}
+				},
+				scales: {
+					xAxes: [{
+						id: 'firstXScaleID'
+					}],
+					yAxes: [{
+						id: 'firstYScaleID'
+					}]
+				}
+			},
+			scales: {
+				firstXScaleID: xScale,
+				firstYScaleID: yScale,
+			}
+		};
+
+		var controller = new Chart.controllers.bar(chart, 1);
+
+		chart.data.datasets[1].data = [1, 2]; // remove 2 items
+		controller.buildOrUpdateElements();
+		controller.update();
+
+		expect(chart.data.datasets[1].metaData.length).toBe(2);
+		
+		var bar1 = chart.data.datasets[1].metaData[0];
+		var bar2 = chart.data.datasets[1].metaData[1];
+
+		expect(bar1._datasetIndex).toBe(1);
+		expect(bar1._index).toBe(0);
+		expect(bar1._xScale).toBe(chart.scales.firstXScaleID);
+		expect(bar1._yScale).toBe(chart.scales.firstYScaleID);
+		expect(bar1._model).toEqual({
+			x: 106.80000000000003,
+			y: 194,
+			label: 'label1',
+			datasetLabel: 'dataset2',
+
+			base: 194,
+			width: 12.240000000000002,
+			backgroundColor: 'rgb(255, 0, 0)',
+			borderColor: 'rgb(0, 0, 255)',
+			borderWidth: 2,
+		});
+
+		expect(bar2._datasetIndex).toBe(1);
+		expect(bar2._index).toBe(1);
+		expect(bar2._xScale).toBe(chart.scales.firstXScaleID);
+		expect(bar2._yScale).toBe(chart.scales.firstYScaleID);
+		expect(bar2._model).toEqual({
+			x: 140.8,
+			y: -15,
+			label: 'label2',
+			datasetLabel: 'dataset2',
+
+			base: 194,
+			width: 12.240000000000002,
+			backgroundColor: 'rgb(255, 0, 0)',
+			borderColor: 'rgb(0, 0, 255)',
+			borderWidth: 2,
+		});
+
+		chart.data.datasets[1].data = [1, 2, 3];
+		controller.buildOrUpdateElements();
+		controller.update();
+
+		expect(chart.data.datasets[1].metaData.length).toBe(3); // should add a new meta data item
+	});
+
+	it ('should draw all bars', function() {
+		var data = {
+			datasets: [{}, {
+				data: [10, 15, 0, -4],
+				label: 'dataset2',
+				xAxisID: 'firstXScaleID',
+				yAxisID: 'firstYScaleID'
+			}],
+			labels: ['label1', 'label2', 'label3', 'label4']
+		};
+		var mockContext = window.createMockContext();
+
+		var VerticalScaleConstructor = Chart.scaleService.getScaleConstructor('linear');
+		var verticalScaleConfig = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('linear'));
+		verticalScaleConfig = Chart.helpers.scaleMerge(verticalScaleConfig, Chart.defaults.bar.scales.yAxes[0]);
+		var yScale = new VerticalScaleConstructor({
+			ctx: mockContext,
+			options: verticalScaleConfig,
+			data: data,
+			id: 'firstYScaleID'
+		});
+
+		// Update ticks & set physical dimensions
+		var verticalSize = yScale.update(50, 200);
+		yScale.top = 0;
+		yScale.left = 0;
+		yScale.right = verticalSize.width;
+		yScale.bottom = verticalSize.height;
+
+		var HorizontalScaleConstructor = Chart.scaleService.getScaleConstructor('category');
+		var horizontalScaleConfig = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('category'));
+		horizontalScaleConfig = Chart.helpers.scaleMerge(horizontalScaleConfig, Chart.defaults.bar.scales.xAxes[0]);
+		var xScale = new HorizontalScaleConstructor({
+			ctx: mockContext,
+			options: horizontalScaleConfig,
+			data: data,
+			id: 'firstXScaleID'
+		});
+
+		// Update ticks & set physical dimensions
+		var horizontalSize = xScale.update(200, 50);
+		xScale.left = yScale.right;
+		xScale.top = yScale.bottom;
+		xScale.right = horizontalSize.width + xScale.left;
+		xScale.bottom = horizontalSize.height + xScale.top;
+
+
+		var chart = {
+			data: data,
+			config: {
+				type: 'bar'
+			},
+			options: {
+				scales: {
+					xAxes: [{
+						id: 'firstXScaleID'
+					}],
+					yAxes: [{
+						id: 'firstYScaleID'
+					}]
+				}
+			},
+			scales: {
+				firstXScaleID: xScale,
+				firstYScaleID: yScale,
+			}
+		};
+
+		var controller = new Chart.controllers.bar(chart, 1);
+
+		spyOn(chart.data.datasets[1].metaData[0], 'draw');
+		spyOn(chart.data.datasets[1].metaData[1], 'draw');
+		spyOn(chart.data.datasets[1].metaData[2], 'draw');
+		spyOn(chart.data.datasets[1].metaData[3], 'draw');
+
+		controller.draw();
+
+		expect(chart.data.datasets[1].metaData[0].draw.calls.count()).toBe(1);
+		expect(chart.data.datasets[1].metaData[1].draw.calls.count()).toBe(1);
+		expect(chart.data.datasets[1].metaData[2].draw.calls.count()).toBe(1);
+		expect(chart.data.datasets[1].metaData[3].draw.calls.count()).toBe(1);
+	});
+
+	it ('should set hover styles on rectangles', function() {
+		var data = {
+			datasets: [{}, {
+				data: [10, 15, 0, -4],
+				label: 'dataset2',
+				xAxisID: 'firstXScaleID',
+				yAxisID: 'firstYScaleID'
+			}],
+			labels: ['label1', 'label2', 'label3', 'label4']
+		};
+		var mockContext = window.createMockContext();
+
+		var VerticalScaleConstructor = Chart.scaleService.getScaleConstructor('linear');
+		var verticalScaleConfig = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('linear'));
+		verticalScaleConfig = Chart.helpers.scaleMerge(verticalScaleConfig, Chart.defaults.bar.scales.yAxes[0]);
+		var yScale = new VerticalScaleConstructor({
+			ctx: mockContext,
+			options: verticalScaleConfig,
+			data: data,
+			id: 'firstYScaleID'
+		});
+
+		// Update ticks & set physical dimensions
+		var verticalSize = yScale.update(50, 200);
+		yScale.top = 0;
+		yScale.left = 0;
+		yScale.right = verticalSize.width;
+		yScale.bottom = verticalSize.height;
+
+		var HorizontalScaleConstructor = Chart.scaleService.getScaleConstructor('category');
+		var horizontalScaleConfig = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('category'));
+		horizontalScaleConfig = Chart.helpers.scaleMerge(horizontalScaleConfig, Chart.defaults.bar.scales.xAxes[0]);
+		var xScale = new HorizontalScaleConstructor({
+			ctx: mockContext,
+			options: horizontalScaleConfig,
+			data: data,
+			id: 'firstXScaleID'
+		});
+
+		// Update ticks & set physical dimensions
+		var horizontalSize = xScale.update(200, 50);
+		xScale.left = yScale.right;
+		xScale.top = yScale.bottom;
+		xScale.right = horizontalSize.width + xScale.left;
+		xScale.bottom = horizontalSize.height + xScale.top;
+
+
+		var chart = {
+			data: data,
+			config: {
+				type: 'bar'
+			},
+			options: {
+				elements: {
+					rectangle: {
+						backgroundColor: 'rgb(255, 0, 0)',
+						borderColor: 'rgb(0, 0, 255)',
+						borderWidth: 2,
+					}
+				},
+				scales: {
+					xAxes: [{
+						id: 'firstXScaleID'
+					}],
+					yAxes: [{
+						id: 'firstYScaleID'
+					}]
+				}
+			},
+			scales: {
+				firstXScaleID: xScale,
+				firstYScaleID: yScale,
+			}
+		};
+
+		var controller = new Chart.controllers.bar(chart, 1);
+		controller.update();
+		var bar = chart.data.datasets[1].metaData[0];
+		controller.setHoverStyle(bar);
+
+		expect(bar._model.backgroundColor).toBe('rgb(230, 0, 0)');
+		expect(bar._model.borderColor).toBe('rgb(0, 0, 230)');
+		expect(bar._model.borderWidth).toBe(2);
+
+		// Set a dataset style
+		chart.data.datasets[1].hoverBackgroundColor = 'rgb(128, 128, 128)';
+		chart.data.datasets[1].hoverBorderColor = 'rgb(0, 0, 0)';
+		chart.data.datasets[1].hoverBorderWidth = 5;
+
+		controller.setHoverStyle(bar);
+
+		expect(bar._model.backgroundColor).toBe('rgb(128, 128, 128)');
+		expect(bar._model.borderColor).toBe('rgb(0, 0, 0)');
+		expect(bar._model.borderWidth).toBe(5);
+
+		// Should work with array styles so that we can set per bar
+		chart.data.datasets[1].hoverBackgroundColor = ['rgb(255, 255, 255)', 'rgb(128, 128, 128)'];
+		chart.data.datasets[1].hoverBorderColor = ['rgb(9, 9, 9)', 'rgb(0, 0, 0)'];
+		chart.data.datasets[1].hoverBorderWidth = [2.5, 5];
+
+		controller.setHoverStyle(bar);
+
+		expect(bar._model.backgroundColor).toBe('rgb(255, 255, 255)');
+		expect(bar._model.borderColor).toBe('rgb(9, 9, 9)');
+		expect(bar._model.borderWidth).toBe(2.5);
+
+		// Should allow a custom style
+		bar.custom = {
+			hoverBackgroundColor: 'rgb(255, 0, 0)',
+			hoverBorderColor: 'rgb(0, 255, 0)',
+			hoverBorderWidth: 1.5
+		};
+
+		controller.setHoverStyle(bar);
+
+		expect(bar._model.backgroundColor).toBe('rgb(255, 0, 0)');
+		expect(bar._model.borderColor).toBe('rgb(0, 255, 0)');
+		expect(bar._model.borderWidth).toBe(1.5);
+	});
+
+	it ('should remove a hover style from a bar', function() {
+		var data = {
+			datasets: [{}, {
+				data: [10, 15, 0, -4],
+				label: 'dataset2',
+				xAxisID: 'firstXScaleID',
+				yAxisID: 'firstYScaleID'
+			}],
+			labels: ['label1', 'label2', 'label3', 'label4']
+		};
+		var mockContext = window.createMockContext();
+
+		var VerticalScaleConstructor = Chart.scaleService.getScaleConstructor('linear');
+		var verticalScaleConfig = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('linear'));
+		verticalScaleConfig = Chart.helpers.scaleMerge(verticalScaleConfig, Chart.defaults.bar.scales.yAxes[0]);
+		var yScale = new VerticalScaleConstructor({
+			ctx: mockContext,
+			options: verticalScaleConfig,
+			data: data,
+			id: 'firstYScaleID'
+		});
+
+		// Update ticks & set physical dimensions
+		var verticalSize = yScale.update(50, 200);
+		yScale.top = 0;
+		yScale.left = 0;
+		yScale.right = verticalSize.width;
+		yScale.bottom = verticalSize.height;
+
+		var HorizontalScaleConstructor = Chart.scaleService.getScaleConstructor('category');
+		var horizontalScaleConfig = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('category'));
+		horizontalScaleConfig = Chart.helpers.scaleMerge(horizontalScaleConfig, Chart.defaults.bar.scales.xAxes[0]);
+		var xScale = new HorizontalScaleConstructor({
+			ctx: mockContext,
+			options: horizontalScaleConfig,
+			data: data,
+			id: 'firstXScaleID'
+		});
+
+		// Update ticks & set physical dimensions
+		var horizontalSize = xScale.update(200, 50);
+		xScale.left = yScale.right;
+		xScale.top = yScale.bottom;
+		xScale.right = horizontalSize.width + xScale.left;
+		xScale.bottom = horizontalSize.height + xScale.top;
+
+
+		var chart = {
+			data: data,
+			config: {
+				type: 'bar'
+			},
+			options: {
+				elements: {
+					rectangle: {
+						backgroundColor: 'rgb(255, 0, 0)',
+						borderColor: 'rgb(0, 0, 255)',
+						borderWidth: 2,
+					}
+				},
+				scales: {
+					xAxes: [{
+						id: 'firstXScaleID'
+					}],
+					yAxes: [{
+						id: 'firstYScaleID'
+					}]
+				}
+			},
+			scales: {
+				firstXScaleID: xScale,
+				firstYScaleID: yScale,
+			}
+		};
+
+		var controller = new Chart.controllers.bar(chart, 1);
+		controller.update();
+		var bar = chart.data.datasets[1].metaData[0];
+
+		// Change default
+		chart.options.elements.rectangle.backgroundColor = 'rgb(128, 128, 128)';
+		chart.options.elements.rectangle.borderColor = 'rgb(15, 15, 15)';
+		chart.options.elements.rectangle.borderWidth = 3.14;
+
+		// Remove to defaults
+		controller.removeHoverStyle(bar);
+
+		expect(bar._model.backgroundColor).toBe('rgb(128, 128, 128)');
+		expect(bar._model.borderColor).toBe('rgb(15, 15, 15)');
+		expect(bar._model.borderWidth).toBe(3.14);
+
+		// Should work with array styles so that we can set per bar
+		chart.data.datasets[1].backgroundColor = ['rgb(255, 255, 255)', 'rgb(128, 128, 128)'];
+		chart.data.datasets[1].borderColor = ['rgb(9, 9, 9)', 'rgb(0, 0, 0)'];
+		chart.data.datasets[1].borderWidth = [2.5, 5];
+
+		controller.removeHoverStyle(bar);
+
+		expect(bar._model.backgroundColor).toBe('rgb(255, 255, 255)');
+		expect(bar._model.borderColor).toBe('rgb(9, 9, 9)');
+		expect(bar._model.borderWidth).toBe(2.5);
+
+		// Should allow a custom style
+		bar.custom = {
+			backgroundColor: 'rgb(255, 0, 0)',
+			borderColor: 'rgb(0, 255, 0)',
+			borderWidth: 1.5
+		};
+
+		controller.removeHoverStyle(bar);
+
+		expect(bar._model.backgroundColor).toBe('rgb(255, 0, 0)');
+		expect(bar._model.borderColor).toBe('rgb(0, 255, 0)');
+		expect(bar._model.borderWidth).toBe(1.5);
+	});	
+});

test/controller.doughnut.tests.js

@@ -0,0 +1,431 @@
+// Test the bar controller
+describe('Doughnut controller tests', function() {
+	it('Should be constructed', function() {
+		var chart = {
+			data: {
+				datasets: [{
+					data: []
+				}]
+			}
+		};
+
+		var controller = new Chart.controllers.doughnut(chart, 0);
+		expect(controller).not.toBe(undefined);
+		expect(controller.index).toBe(0);
+		expect(chart.data.datasets[0].metaData).toEqual([]);
+
+		controller.updateIndex(1);
+		expect(controller.index).toBe(1);
+	});
+
+	it('Should create arc elements for each data item during initialization', function() {
+		var chart = {
+			data: {
+				datasets: [{
+					data: [10, 15, 0, 4]
+				}]
+			},
+			config: {
+				type: 'doughnut'
+			},
+			options: {
+			}
+		};
+
+		var controller = new Chart.controllers.doughnut(chart, 0);
+
+		expect(chart.data.datasets[0].metaData.length).toBe(4); // 4 rectangles created
+		expect(chart.data.datasets[0].metaData[0] instanceof Chart.elements.Arc).toBe(true);
+		expect(chart.data.datasets[0].metaData[1] instanceof Chart.elements.Arc).toBe(true);
+		expect(chart.data.datasets[0].metaData[2] instanceof Chart.elements.Arc).toBe(true);
+		expect(chart.data.datasets[0].metaData[3] instanceof Chart.elements.Arc).toBe(true);
+	});
+
+	it ('Should remove elements', function() {
+		var chart = {
+			data: {
+				datasets: [{
+					data: [10, 15, 0, 4]
+				}]
+			},
+			config: {
+				type: 'doughnut'
+			},
+			options: {
+			}
+		};
+
+		var controller = new Chart.controllers.doughnut(chart, 0);
+		controller.removeElement(1);
+		expect(chart.data.datasets[0].metaData.length).toBe(3);
+	});
+
+	it ('Should reset and update elements', function() {
+		var chart = {
+			chart: {
+				width: 100,
+				height: 200,
+			},
+			data: {
+				datasets: [{
+					data: [10, 15, 0, 4]
+				}, {
+					data: [1]
+				}],
+				labels: ['label0', 'label1', 'label2', 'label3']
+			},
+			config: {
+				type: 'doughnut'
+			},
+			options: {
+				animation: {
+					animateRotate: false,
+					animateScale: false
+				},
+				cutoutPercentage: 50,
+				elements: {
+					arc: {
+						backgroundColor: 'rgb(255, 0, 0)',
+						borderColor: 'rgb(0, 0, 255)',
+						borderWidth: 2,
+						hoverBackgroundColor: 'rgb(255, 255, 255)'
+					}
+				}
+			}
+		};
+
+		var controller = new Chart.controllers.doughnut(chart, 0);
+		controller.reset(); // reset first
+
+		expect(chart.data.datasets[0].metaData[0]._model).toEqual({
+			x: 50,
+			y: 100,
+			startAngle: Math.PI * -0.5,
+			circumference: 2.166614539857563,
+			outerRadius: 49,
+			innerRadius: 36.75,
+		});
+
+		expect(chart.data.datasets[0].metaData[1]._model).toEqual({
+			x: 50,
+			y: 100,
+			startAngle: Math.PI * -0.5,
+			circumference: 3.2499218097863447,
+			outerRadius: 49,
+			innerRadius: 36.75,
+		});
+
+		expect(chart.data.datasets[0].metaData[2]._model).toEqual({
+			x: 50,
+			y: 100,
+			startAngle: Math.PI * -0.5,
+			circumference: 0,
+			outerRadius: 49,
+			innerRadius: 36.75,
+		});
+
+		expect(chart.data.datasets[0].metaData[3]._model).toEqual({
+			x: 50,
+			y: 100,
+			startAngle: Math.PI * -0.5,
+			circumference: 0.8666458159430251,
+			outerRadius: 49,
+			innerRadius: 36.75,
+		});
+
+		controller.update();
+
+		expect(chart.data.datasets[0].metaData[0]._model).toEqual({
+			x: 50,
+			y: 100,
+			startAngle: Math.PI * -0.5,
+			endAngle: 0.5958182130626666,
+			circumference: 2.166614539857563,
+			outerRadius: 49,
+			innerRadius: 36.75,
+
+			backgroundColor: 'rgb(255, 0, 0)',
+			borderColor: 'rgb(0, 0, 255)',
+			borderWidth: 2,
+			hoverBackgroundColor: 'rgb(255, 255, 255)',
+
+			label: 'label0',
+		});
+
+		expect(chart.data.datasets[0].metaData[1]._model).toEqual({
+			x: 50,
+			y: 100,
+			startAngle: 0.5958182130626666,
+			endAngle: 3.8457400228490113,
+			circumference: 3.2499218097863447,
+			outerRadius: 49,
+			innerRadius: 36.75,
+
+			backgroundColor: 'rgb(255, 0, 0)',
+			borderColor: 'rgb(0, 0, 255)',
+			borderWidth: 2,
+			hoverBackgroundColor: 'rgb(255, 255, 255)',
+
+			label: 'label1'
+		});
+
+		expect(chart.data.datasets[0].metaData[2]._model).toEqual({
+			x: 50,
+			y: 100,
+			startAngle: 3.8457400228490113,
+			endAngle: 3.8457400228490113,
+			circumference: 0,
+			outerRadius: 49,
+			innerRadius: 36.75,
+
+			backgroundColor: 'rgb(255, 0, 0)',
+			borderColor: 'rgb(0, 0, 255)',
+			borderWidth: 2,
+			hoverBackgroundColor: 'rgb(255, 255, 255)',
+
+			label: 'label2'
+		});
+
+		expect(chart.data.datasets[0].metaData[3]._model).toEqual({
+			x: 50,
+			y: 100,
+			startAngle: 3.8457400228490113,
+			endAngle: 4.712385838792036,
+			circumference: 0.8666458159430251,
+			outerRadius: 49,
+			innerRadius: 36.75,
+
+			backgroundColor: 'rgb(255, 0, 0)',
+			borderColor: 'rgb(0, 0, 255)',
+			borderWidth: 2,
+			hoverBackgroundColor: 'rgb(255, 255, 255)',
+			
+			label: 'label3'
+		});
+
+		// Change the amount of data and ensure that arcs are updated accordingly
+		chart.data.datasets[0].data = [1, 2]; // remove 2 elements from dataset 0
+		controller.buildOrUpdateElements();
+		controller.update();
+
+		expect(chart.data.datasets[0].metaData.length).toBe(2);
+		expect(chart.data.datasets[0].metaData[0] instanceof Chart.elements.Arc).toBe(true);
+		expect(chart.data.datasets[0].metaData[1] instanceof Chart.elements.Arc).toBe(true);
+
+		// Add data
+		chart.data.datasets[0].data = [1, 2, 3, 4];
+		controller.buildOrUpdateElements();
+		controller.update();
+
+		expect(chart.data.datasets[0].metaData.length).toBe(4);
+		expect(chart.data.datasets[0].metaData[0] instanceof Chart.elements.Arc).toBe(true);
+		expect(chart.data.datasets[0].metaData[1] instanceof Chart.elements.Arc).toBe(true);
+		expect(chart.data.datasets[0].metaData[2] instanceof Chart.elements.Arc).toBe(true);
+		expect(chart.data.datasets[0].metaData[3] instanceof Chart.elements.Arc).toBe(true);
+	});
+
+	it ('should draw all arcs', function() {
+		var chart = {
+			chart: {
+				width: 100,
+				height: 200,
+			},
+			data: {
+				datasets: [{
+					data: [10, 15, 0, 4]
+				}],
+				labels: ['label0', 'label1', 'label2', 'label3']
+			},
+			config: {
+				type: 'doughnut'
+			},
+			options: {
+				animation: {
+					animateRotate: false,
+					animateScale: false
+				},
+				cutoutPercentage: 50,
+				elements: {
+					arc: {
+						backgroundColor: 'rgb(255, 0, 0)',
+						borderColor: 'rgb(0, 0, 255)',
+						borderWidth: 2,
+						hoverBackgroundColor: 'rgb(255, 255, 255)'
+					}
+				}
+			}
+		};
+
+		var controller = new Chart.controllers.doughnut(chart, 0);
+
+		spyOn(chart.data.datasets[0].metaData[0], 'draw');
+		spyOn(chart.data.datasets[0].metaData[1], 'draw');
+		spyOn(chart.data.datasets[0].metaData[2], 'draw');
+		spyOn(chart.data.datasets[0].metaData[3], 'draw');
+
+		controller.draw();
+
+		expect(chart.data.datasets[0].metaData[0].draw.calls.count()).toBe(1);
+		expect(chart.data.datasets[0].metaData[1].draw.calls.count()).toBe(1);
+		expect(chart.data.datasets[0].metaData[2].draw.calls.count()).toBe(1);
+		expect(chart.data.datasets[0].metaData[3].draw.calls.count()).toBe(1);
+	});
+
+	it ('should set the hover style of an arc', function() {
+		var chart = {
+			chart: {
+				width: 100,
+				height: 200,
+			},
+			data: {
+				datasets: [{
+					data: [10, 15, 0, 4]
+				}],
+				labels: ['label0', 'label1', 'label2', 'label3']
+			},
+			config: {
+				type: 'doughnut'
+			},
+			options: {
+				animation: {
+					animateRotate: false,
+					animateScale: false
+				},
+				cutoutPercentage: 50,
+				elements: {
+					arc: {
+						backgroundColor: 'rgb(255, 0, 0)',
+						borderColor: 'rgb(0, 0, 255)',
+						borderWidth: 2,
+					}
+				}
+			}
+		};
+
+		var controller = new Chart.controllers.doughnut(chart, 0);
+		controller.reset(); // reset first
+		controller.update();
+
+		var arc = chart.data.datasets[0].metaData[0];
+
+		controller.setHoverStyle(arc);
+
+		expect(arc._model.backgroundColor).toBe('rgb(230, 0, 0)');
+		expect(arc._model.borderColor).toBe('rgb(0, 0, 230)');
+		expect(arc._model.borderWidth).toBe(2);
+
+		// Set a dataset style to take precedence
+		chart.data.datasets[0].hoverBackgroundColor = 'rgb(9, 9, 9)';
+		chart.data.datasets[0].hoverBorderColor = 'rgb(18, 18, 18)';
+		chart.data.datasets[0].hoverBorderWidth = 1.56;
+
+		controller.setHoverStyle(arc);
+
+		expect(arc._model.backgroundColor).toBe('rgb(9, 9, 9)');
+		expect(arc._model.borderColor).toBe('rgb(18, 18, 18)');
+		expect(arc._model.borderWidth).toBe(1.56);
+
+		// Dataset styles can be an array
+		chart.data.datasets[0].hoverBackgroundColor = ['rgb(255, 255, 255)', 'rgb(9, 9, 9)'];
+		chart.data.datasets[0].hoverBorderColor = ['rgb(18, 18, 18)'];
+		chart.data.datasets[0].hoverBorderWidth = [0.1, 1.56];
+
+		controller.setHoverStyle(arc);
+
+		expect(arc._model.backgroundColor).toBe('rgb(255, 255, 255)');
+		expect(arc._model.borderColor).toBe('rgb(18, 18, 18)');
+		expect(arc._model.borderWidth).toBe(0.1);
+
+		// Element custom styles also work
+		arc.custom = {
+			hoverBackgroundColor: 'rgb(7, 7, 7)',
+			hoverBorderColor: 'rgb(17, 17, 17)',
+			hoverBorderWidth: 3.14159,
+		};
+
+		controller.setHoverStyle(arc);
+
+		expect(arc._model.backgroundColor).toBe('rgb(7, 7, 7)');
+		expect(arc._model.borderColor).toBe('rgb(17, 17, 17)');
+		expect(arc._model.borderWidth).toBe(3.14159);
+	});
+
+	it ('should unset the hover style of an arc', function() {
+		var chart = {
+			chart: {
+				width: 100,
+				height: 200,
+			},
+			data: {
+				datasets: [{
+					data: [10, 15, 0, 4]
+				}],
+				labels: ['label0', 'label1', 'label2', 'label3']
+			},
+			config: {
+				type: 'doughnut'
+			},
+			options: {
+				animation: {
+					animateRotate: false,
+					animateScale: false
+				},
+				cutoutPercentage: 50,
+				elements: {
+					arc: {
+						backgroundColor: 'rgb(255, 0, 0)',
+						borderColor: 'rgb(0, 0, 255)',
+						borderWidth: 2,
+					}
+				}
+			}
+		};
+
+		var controller = new Chart.controllers.doughnut(chart, 0);
+		controller.reset(); // reset first
+		controller.update();
+
+		var arc = chart.data.datasets[0].metaData[0];
+
+		controller.removeHoverStyle(arc);
+
+		expect(arc._model.backgroundColor).toBe('rgb(255, 0, 0)');
+		expect(arc._model.borderColor).toBe('rgb(0, 0, 255)');
+		expect(arc._model.borderWidth).toBe(2);
+
+		// Set a dataset style to take precedence
+		chart.data.datasets[0].backgroundColor = 'rgb(9, 9, 9)';
+		chart.data.datasets[0].borderColor = 'rgb(18, 18, 18)';
+		chart.data.datasets[0].borderWidth = 1.56;
+
+		controller.removeHoverStyle(arc);
+
+		expect(arc._model.backgroundColor).toBe('rgb(9, 9, 9)');
+		expect(arc._model.borderColor).toBe('rgb(18, 18, 18)');
+		expect(arc._model.borderWidth).toBe(1.56);
+
+		// Dataset styles can be an array
+		chart.data.datasets[0].backgroundColor = ['rgb(255, 255, 255)', 'rgb(9, 9, 9)'];
+		chart.data.datasets[0].borderColor = ['rgb(18, 18, 18)'];
+		chart.data.datasets[0].borderWidth = [0.1, 1.56];
+
+		controller.removeHoverStyle(arc);
+
+		expect(arc._model.backgroundColor).toBe('rgb(255, 255, 255)');
+		expect(arc._model.borderColor).toBe('rgb(18, 18, 18)');
+		expect(arc._model.borderWidth).toBe(0.1);
+
+		// Element custom styles also work
+		arc.custom = {
+			backgroundColor: 'rgb(7, 7, 7)',
+			borderColor: 'rgb(17, 17, 17)',
+			borderWidth: 3.14159,
+		};
+
+		controller.removeHoverStyle(arc);
+
+		expect(arc._model.backgroundColor).toBe('rgb(7, 7, 7)');
+		expect(arc._model.borderColor).toBe('rgb(17, 17, 17)');
+		expect(arc._model.borderWidth).toBe(3.14159);
+	});
+});

test/controller.line.tests.js

@@ -0,0 +1,918 @@
+// Test the line controller
+describe('Line controller tests', function() {
+	it('Should be constructed', function() {
+		var chart = {
+			data: {
+				datasets: [{
+					xAxisID: 'myXAxis',
+					yAxisID: 'myYAxis',
+					data: []
+				}]
+			}
+		};
+
+		var controller = new Chart.controllers.line(chart, 0);
+		expect(controller).not.toBe(undefined);
+		expect(controller.index).toBe(0);
+		expect(chart.data.datasets[0].metaData).toEqual([]);
+
+		controller.updateIndex(1);
+		expect(controller.index).toBe(1);
+	});
+
+	it('Should use the first scale IDs if the dataset does not specify them', function() {
+		var chart = {
+			data: {
+				datasets: [{
+					data: []
+				}]
+			},
+			options: {
+				scales: {
+					xAxes: [{
+						id: 'firstXScaleID'
+					}],
+					yAxes: [{
+						id: 'firstYScaleID'
+					}]
+				}
+			}
+		};
+
+		var controller = new Chart.controllers.line(chart, 0);
+		expect(chart.data.datasets[0].xAxisID).toBe('firstXScaleID');
+		expect(chart.data.datasets[0].yAxisID).toBe('firstYScaleID');
+	});
+
+	it('Should create line elements and point elements for each data item during initialization', function() {
+		var chart = {
+			data: {
+				datasets: [{
+					data: [10, 15, 0, -4]
+				}]
+			},
+			config: {
+				type: 'line'
+			},
+			options: {
+				scales: {
+					xAxes: [{
+						id: 'firstXScaleID'
+					}],
+					yAxes: [{
+						id: 'firstYScaleID'
+					}]
+				}
+			}
+		};
+
+		var controller = new Chart.controllers.line(chart, 0);
+
+		expect(chart.data.datasets[0].metaData.length).toBe(4); // 4 points created
+		expect(chart.data.datasets[0].metaData[0] instanceof Chart.elements.Point).toBe(true);
+		expect(chart.data.datasets[0].metaData[1] instanceof Chart.elements.Point).toBe(true);
+		expect(chart.data.datasets[0].metaData[2] instanceof Chart.elements.Point).toBe(true);
+		expect(chart.data.datasets[0].metaData[3] instanceof Chart.elements.Point).toBe(true);
+		expect(chart.data.datasets[0].metaDataset instanceof Chart.elements.Line).toBe(true); // 1 line element
+	});
+
+	it('should remove elements', function() {
+		var chart = {
+			data: {
+				datasets: [{
+					data: [10, 15, 0, -4]
+				}]
+			},
+			config: {
+				type: 'line'
+			},
+			options: {
+				scales: {
+					xAxes: [{
+						id: 'firstXScaleID'
+					}],
+					yAxes: [{
+						id: 'firstYScaleID'
+					}]
+				}
+			}
+		};
+
+		var controller = new Chart.controllers.line(chart, 0);
+		controller.removeElement(0);
+		expect(chart.data.datasets[0].metaData.length).toBe(3);
+	});
+
+	it ('should draw all elements', function() {
+		var chart = {
+			data: {
+				datasets: [{
+					data: [10, 15, 0, -4]
+				}]
+			},
+			config: {
+				type: 'line'
+			},
+			options: {
+				scales: {
+					xAxes: [{
+						id: 'firstXScaleID'
+					}],
+					yAxes: [{
+						id: 'firstYScaleID'
+					}]
+				}
+			}
+		};
+
+		var controller = new Chart.controllers.line(chart, 0);
+
+		spyOn(chart.data.datasets[0].metaDataset, 'draw');
+		spyOn(chart.data.datasets[0].metaData[0], 'draw');
+		spyOn(chart.data.datasets[0].metaData[1], 'draw');
+		spyOn(chart.data.datasets[0].metaData[2], 'draw');
+		spyOn(chart.data.datasets[0].metaData[3], 'draw');
+
+		controller.draw();
+
+		expect(chart.data.datasets[0].metaDataset.draw.calls.count()).toBe(1);
+		expect(chart.data.datasets[0].metaData[0].draw.calls.count()).toBe(1);
+		expect(chart.data.datasets[0].metaData[2].draw.calls.count()).toBe(1);
+		expect(chart.data.datasets[0].metaData[3].draw.calls.count()).toBe(1);
+	});
+
+	it ('should update elements', function() {
+		var data = {
+			datasets: [{
+				data: [10, 15, 0, -4],
+				label: 'dataset2',
+				xAxisID: 'firstXScaleID',
+				yAxisID: 'firstYScaleID'
+			}],
+			labels: ['label1', 'label2', 'label3', 'label4']
+		};
+		var mockContext = window.createMockContext();
+
+		var VerticalScaleConstructor = Chart.scaleService.getScaleConstructor('linear');
+		var verticalScaleConfig = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('linear'));
+		verticalScaleConfig = Chart.helpers.scaleMerge(verticalScaleConfig, Chart.defaults.line.scales.yAxes[0]);
+		var yScale = new VerticalScaleConstructor({
+			ctx: mockContext,
+			options: verticalScaleConfig,
+			data: data,
+			id: 'firstYScaleID'
+		});
+
+		// Update ticks & set physical dimensions
+		var verticalSize = yScale.update(50, 200);
+		yScale.top = 0;
+		yScale.left = 0;
+		yScale.right = verticalSize.width;
+		yScale.bottom = verticalSize.height;
+
+		var HorizontalScaleConstructor = Chart.scaleService.getScaleConstructor('category');
+		var horizontalScaleConfig = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('category'));
+		horizontalScaleConfig = Chart.helpers.scaleMerge(horizontalScaleConfig, Chart.defaults.line.scales.xAxes[0]);
+		var xScale = new HorizontalScaleConstructor({
+			ctx: mockContext,
+			options: horizontalScaleConfig,
+			data: data,
+			id: 'firstXScaleID'
+		});
+
+		// Update ticks & set physical dimensions
+		var horizontalSize = xScale.update(200, 50);
+		xScale.left = yScale.right;
+		xScale.top = yScale.bottom;
+		xScale.right = horizontalSize.width + xScale.left;
+		xScale.bottom = horizontalSize.height + xScale.top;
+
+
+		var chart = {
+			chartArea: {
+				bottom: 200,
+				left: xScale.left,
+				right: 200,
+				top: 0
+			},
+			data: data,
+			config: {
+				type: 'line'
+			},
+			options: {
+				elements: {
+					line: {
+						backgroundColor: 'rgb(255, 0, 0)',
+						borderCapStyle: 'round',
+						borderColor: 'rgb(0, 255, 0)',
+						borderDash: [],
+						borderDashOffset: 0.1,
+						borderJoinStyle: 'bevel',
+						borderWidth: 1.2,
+						fill: true,
+						skipNull: true,
+						tension: 0.1,
+					},
+					point: {
+						backgroundColor: Chart.defaults.global.defaultColor,
+						borderWidth: 1,
+						borderColor: Chart.defaults.global.defaultColor,
+						hitRadius: 1,
+						hoverRadius: 4,
+						hoverBorderWidth: 1,
+						radius: 3,
+					}
+				},
+				scales: {
+					xAxes: [{
+						id: 'firstXScaleID'
+					}],
+					yAxes: [{
+						id: 'firstYScaleID'
+					}]
+				}
+			},
+			scales: {
+				firstXScaleID: xScale,
+				firstYScaleID: yScale,
+			}
+		};
+
+		var controller = new Chart.controllers.line(chart, 0);
+		controller.update();
+
+		// Line element
+		expect(chart.data.datasets[0].metaDataset._model).toEqual({
+			backgroundColor: 'rgb(255, 0, 0)',
+			borderCapStyle: 'round',
+			borderColor: 'rgb(0, 255, 0)',
+			borderDash: [],
+			borderDashOffset: 0.1,
+			borderJoinStyle: 'bevel',
+			borderWidth: 1.2,
+			fill: true,
+			drawNull: undefined,
+			skipNull: true,
+			tension: 0.1,
+
+			scaleTop: 0,
+			scaleBottom: 200,
+			scaleZero: 156,
+		});
+
+		expect(chart.data.datasets[0].metaData[0]._model).toEqual({
+			backgroundColor: Chart.defaults.global.defaultColor,
+			borderWidth: 1,
+			borderColor: Chart.defaults.global.defaultColor,
+			hitRadius: 1,
+			radius: 3,
+			skip: false,
+			tension: 0.1,
+			
+			// Point
+			x: 63,
+			y: 62,
+
+			// Control points
+			controlPointPreviousX: 63,
+			controlPointPreviousY: 62,
+			controlPointNextX: 67.5,
+			controlPointNextY: 57.3,
+		});
+
+		expect(chart.data.datasets[0].metaData[1]._model).toEqual({
+			backgroundColor: Chart.defaults.global.defaultColor,
+			borderWidth: 1,
+			borderColor: Chart.defaults.global.defaultColor,
+			hitRadius: 1,
+			radius: 3,
+			skip: false,
+			tension: 0.1,
+			
+			// Point
+			x: 108,
+			y: 15,
+
+			// Control points
+			controlPointPreviousX: 105.27827106822767,
+			controlPointPreviousY: 12.125364948465183,
+			controlPointNextX: 114.17827106822767,
+			controlPointNextY: 21.52536494846518,
+		});
+
+		expect(chart.data.datasets[0].metaData[2]._model).toEqual({
+			backgroundColor: Chart.defaults.global.defaultColor,
+			borderWidth: 1,
+			borderColor: Chart.defaults.global.defaultColor,
+			hitRadius: 1,
+			radius: 3,
+			skip: false,
+			tension: 0.1,
+			
+			// Point
+			x: 152,
+			y: 156,
+
+			// Control points
+			controlPointPreviousX: 145.63719249781943,
+			controlPointPreviousY: 143.20289277651324,
+			controlPointNextX: 154.53719249781943,
+			controlPointNextY: 161.10289277651324,
+		});
+
+		expect(chart.data.datasets[0].metaData[3]._model).toEqual({
+			backgroundColor: Chart.defaults.global.defaultColor,
+			borderWidth: 1,
+			borderColor: Chart.defaults.global.defaultColor,
+			hitRadius: 1,
+			radius: 3,
+			skip: false,
+			tension: 0.1,
+			
+			// Point
+			x: 197,
+			y: 194,
+
+			// Control points
+			controlPointPreviousX: 192.5,
+			controlPointPreviousY: 190.2,
+			controlPointNextX: 197,
+			controlPointNextY: 194,
+		});
+
+		// Use dataset level styles for lines & points
+		chart.data.datasets[0].tension = 0.2;
+		chart.data.datasets[0].backgroundColor = 'rgb(98, 98, 98)';
+		chart.data.datasets[0].borderColor = 'rgb(8, 8, 8)';
+		chart.data.datasets[0].borderWidth = 0.55;
+		chart.data.datasets[0].borderCapStyle = 'butt';
+		chart.data.datasets[0].borderDash = [2, 3];
+		chart.data.datasets[0].borderDashOffset = 7;
+		chart.data.datasets[0].borderJoinStyle = 'miter';
+		chart.data.datasets[0].fill = false;
+		chart.data.datasets[0].skipNull = false;
+		chart.data.datasets[0].drawNull = true;
+
+		// point styles
+		chart.data.datasets[0].radius = 22;
+		chart.data.datasets[0].hitRadius = 3.3;
+		chart.data.datasets[0].pointBackgroundColor = 'rgb(128, 129, 130)';
+		chart.data.datasets[0].pointBorderColor = 'rgb(56, 57, 58)';
+		chart.data.datasets[0].pointBorderWidth = 1.123;
+
+		controller.update();
+
+		expect(chart.data.datasets[0].metaDataset._model).toEqual({
+			backgroundColor: 'rgb(98, 98, 98)',
+			borderCapStyle: 'butt',
+			borderColor: 'rgb(8, 8, 8)',
+			borderDash: [2, 3],
+			borderDashOffset: 7,
+			borderJoinStyle: 'miter',
+			borderWidth: 0.55,
+			fill: false,
+			drawNull: true,
+			skipNull: false,
+			tension: 0.2,
+
+			scaleTop: 0,
+			scaleBottom: 200,
+			scaleZero: 156,
+		});
+
+		expect(chart.data.datasets[0].metaData[0]._model).toEqual({
+			backgroundColor: 'rgb(128, 129, 130)',
+			borderWidth: 1.123,
+			borderColor: 'rgb(56, 57, 58)',
+			hitRadius: 3.3,
+			radius: 22,
+			skip: false,
+			tension: 0.2,
+			
+			// Point
+			x: 63,
+			y: 62,
+
+			// Control points
+			controlPointPreviousX: 63,
+			controlPointPreviousY: 62,
+			controlPointNextX: 72,
+			controlPointNextY: 52.6,
+		});
+
+		expect(chart.data.datasets[0].metaData[1]._model).toEqual({
+			backgroundColor: 'rgb(128, 129, 130)',
+			borderWidth: 1.123,
+			borderColor: 'rgb(56, 57, 58)',
+			hitRadius: 3.3,
+			radius: 22,
+			skip: false,
+			tension: 0.2,
+			
+			// Point
+			x: 108,
+			y: 15,
+
+			// Control points
+			controlPointPreviousX: 102.55654213645535,
+			controlPointPreviousY: 9.250729896930364,
+			controlPointNextX: 120.35654213645535,
+			controlPointNextY: 28.050729896930367,
+		});
+
+		expect(chart.data.datasets[0].metaData[2]._model).toEqual({
+			backgroundColor: 'rgb(128, 129, 130)',
+			borderWidth: 1.123,
+			borderColor: 'rgb(56, 57, 58)',
+			hitRadius: 3.3,
+			radius: 22,
+			skip: false,
+			tension: 0.2,
+			
+			// Point
+			x: 152,
+			y: 156,
+
+			// Control points
+			controlPointPreviousX: 139.27438499563885,
+			controlPointPreviousY: 130.40578555302648,
+			controlPointNextX: 157.07438499563887,
+			controlPointNextY: 166.20578555302646,
+		});
+
+		expect(chart.data.datasets[0].metaData[3]._model).toEqual({
+			backgroundColor: 'rgb(128, 129, 130)',
+			borderWidth: 1.123,
+			borderColor: 'rgb(56, 57, 58)',
+			hitRadius: 3.3,
+			radius: 22,
+			skip: false,
+			tension: 0.2,
+			
+			// Point
+			x: 197,
+			y: 194,
+
+			// Control points
+			controlPointPreviousX: 188,
+			controlPointPreviousY: 186.4,
+			controlPointNextX: 197,
+			controlPointNextY: 194,
+		});
+
+		// Use custom styles for lines & first point
+		chart.data.datasets[0].metaDataset.custom = {
+			tension: 0.25,
+			backgroundColor: 'rgb(55, 55, 54)',
+			borderColor: 'rgb(8, 7, 6)',
+			borderWidth: 0.3,
+			borderCapStyle: 'square',
+			borderDash: [4, 3],
+			borderDashOffset: 4.4,
+			borderJoinStyle: 'round',
+			fill: true,
+			skipNull: true,
+			drawNull: false,
+		};
+
+		// point styles
+		chart.data.datasets[0].metaData[0].custom = {
+			radius: 2.2,
+			backgroundColor: 'rgb(0, 1, 3)',
+			borderColor: 'rgb(4, 6, 8)',
+			borderWidth: 0.787,
+			tension: 0.15,
+			skip: true,
+			hitRadius: 5,
+		};
+
+		controller.update();
+
+		expect(chart.data.datasets[0].metaDataset._model).toEqual({
+			backgroundColor: 'rgb(55, 55, 54)',
+			borderCapStyle: 'square',
+			borderColor: 'rgb(8, 7, 6)',
+			borderDash: [4, 3],
+			borderDashOffset: 4.4,
+			borderJoinStyle: 'round',
+			borderWidth: 0.3,
+			fill: true,
+			drawNull: true,
+			skipNull: false,
+			tension: 0.25,
+
+			scaleTop: 0,
+			scaleBottom: 200,
+			scaleZero: 156,
+		});
+
+		expect(chart.data.datasets[0].metaData[0]._model).toEqual({
+			backgroundColor: 'rgb(0, 1, 3)',
+			borderWidth: 0.787,
+			borderColor: 'rgb(4, 6, 8)',
+			hitRadius: 5,
+			radius: 2.2,
+			skip: true,
+			tension: 0.15,
+			
+			// Point
+			x: 63,
+			y: 62,
+
+			// Control points
+			controlPointPreviousX: 63,
+			controlPointPreviousY: 62,
+			controlPointNextX: 69.75,
+			controlPointNextY: 54.95,
+		});
+	});
+
+	it ('should handle number of data point changes in update', function() {
+		var data = {
+			datasets: [{
+				data: [10, 15, 0, -4],
+				label: 'dataset2',
+				xAxisID: 'firstXScaleID',
+				yAxisID: 'firstYScaleID'
+			}],
+			labels: ['label1', 'label2', 'label3', 'label4']
+		};
+		var mockContext = window.createMockContext();
+
+		var VerticalScaleConstructor = Chart.scaleService.getScaleConstructor('linear');
+		var verticalScaleConfig = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('linear'));
+		verticalScaleConfig = Chart.helpers.scaleMerge(verticalScaleConfig, Chart.defaults.line.scales.yAxes[0]);
+		var yScale = new VerticalScaleConstructor({
+			ctx: mockContext,
+			options: verticalScaleConfig,
+			data: data,
+			id: 'firstYScaleID'
+		});
+
+		// Update ticks & set physical dimensions
+		var verticalSize = yScale.update(50, 200);
+		yScale.top = 0;
+		yScale.left = 0;
+		yScale.right = verticalSize.width;
+		yScale.bottom = verticalSize.height;
+
+		var HorizontalScaleConstructor = Chart.scaleService.getScaleConstructor('category');
+		var horizontalScaleConfig = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('category'));
+		horizontalScaleConfig = Chart.helpers.scaleMerge(horizontalScaleConfig, Chart.defaults.line.scales.xAxes[0]);
+		var xScale = new HorizontalScaleConstructor({
+			ctx: mockContext,
+			options: horizontalScaleConfig,
+			data: data,
+			id: 'firstXScaleID'
+		});
+
+		// Update ticks & set physical dimensions
+		var horizontalSize = xScale.update(200, 50);
+		xScale.left = yScale.right;
+		xScale.top = yScale.bottom;
+		xScale.right = horizontalSize.width + xScale.left;
+		xScale.bottom = horizontalSize.height + xScale.top;
+
+
+		var chart = {
+			chartArea: {
+				bottom: 200,
+				left: xScale.left,
+				right: 200,
+				top: 0
+			},
+			data: data,
+			config: {
+				type: 'line'
+			},
+			options: {
+				elements: {
+					line: {
+						backgroundColor: 'rgb(255, 0, 0)',
+						borderCapStyle: 'round',
+						borderColor: 'rgb(0, 255, 0)',
+						borderDash: [],
+						borderDashOffset: 0.1,
+						borderJoinStyle: 'bevel',
+						borderWidth: 1.2,
+						fill: true,
+						skipNull: true,
+						tension: 0.1,
+					},
+					point: {
+						backgroundColor: Chart.defaults.global.defaultColor,
+						borderWidth: 1,
+						borderColor: Chart.defaults.global.defaultColor,
+						hitRadius: 1,
+						hoverRadius: 4,
+						hoverBorderWidth: 1,
+						radius: 3,
+					}
+				},
+				scales: {
+					xAxes: [{
+						id: 'firstXScaleID'
+					}],
+					yAxes: [{
+						id: 'firstYScaleID'
+					}]
+				}
+			},
+			scales: {
+				firstXScaleID: xScale,
+				firstYScaleID: yScale,
+			}
+		};
+
+		var controller = new Chart.controllers.line(chart, 0);
+		chart.data.datasets[0].data = [1, 2]; // remove 2 items
+		controller.buildOrUpdateElements();
+		controller.update();
+		expect(chart.data.datasets[0].metaData.length).toBe(2);
+		expect(chart.data.datasets[0].metaData[0] instanceof Chart.elements.Point).toBe(true);
+		expect(chart.data.datasets[0].metaData[1] instanceof Chart.elements.Point).toBe(true);
+
+		chart.data.datasets[0].data = [1, 2, 3, 4, 5]; // add 3 items
+		controller.buildOrUpdateElements();
+		controller.update();
+		expect(chart.data.datasets[0].metaData.length).toBe(5);
+		expect(chart.data.datasets[0].metaData[0] instanceof Chart.elements.Point).toBe(true);
+		expect(chart.data.datasets[0].metaData[1] instanceof Chart.elements.Point).toBe(true);
+		expect(chart.data.datasets[0].metaData[2] instanceof Chart.elements.Point).toBe(true);
+		expect(chart.data.datasets[0].metaData[3] instanceof Chart.elements.Point).toBe(true);
+		expect(chart.data.datasets[0].metaData[4] instanceof Chart.elements.Point).toBe(true);
+	});
+
+	it ('should set point hover styles', function() {
+		var data = {
+			datasets: [{
+				data: [10, 15, 0, -4],
+				label: 'dataset2',
+				xAxisID: 'firstXScaleID',
+				yAxisID: 'firstYScaleID'
+			}],
+			labels: ['label1', 'label2', 'label3', 'label4']
+		};
+		var mockContext = window.createMockContext();
+
+		var VerticalScaleConstructor = Chart.scaleService.getScaleConstructor('linear');
+		var verticalScaleConfig = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('linear'));
+		verticalScaleConfig = Chart.helpers.scaleMerge(verticalScaleConfig, Chart.defaults.line.scales.yAxes[0]);
+		var yScale = new VerticalScaleConstructor({
+			ctx: mockContext,
+			options: verticalScaleConfig,
+			data: data,
+			id: 'firstYScaleID'
+		});
+
+		// Update ticks & set physical dimensions
+		var verticalSize = yScale.update(50, 200);
+		yScale.top = 0;
+		yScale.left = 0;
+		yScale.right = verticalSize.width;
+		yScale.bottom = verticalSize.height;
+
+		var HorizontalScaleConstructor = Chart.scaleService.getScaleConstructor('category');
+		var horizontalScaleConfig = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('category'));
+		horizontalScaleConfig = Chart.helpers.scaleMerge(horizontalScaleConfig, Chart.defaults.line.scales.xAxes[0]);
+		var xScale = new HorizontalScaleConstructor({
+			ctx: mockContext,
+			options: horizontalScaleConfig,
+			data: data,
+			id: 'firstXScaleID'
+		});
+
+		// Update ticks & set physical dimensions
+		var horizontalSize = xScale.update(200, 50);
+		xScale.left = yScale.right;
+		xScale.top = yScale.bottom;
+		xScale.right = horizontalSize.width + xScale.left;
+		xScale.bottom = horizontalSize.height + xScale.top;
+
+
+		var chart = {
+			chartArea: {
+				bottom: 200,
+				left: xScale.left,
+				right: 200,
+				top: 0
+			},
+			data: data,
+			config: {
+				type: 'line'
+			},
+			options: {
+				elements: {
+					line: {
+						backgroundColor: 'rgb(255, 0, 0)',
+						borderCapStyle: 'round',
+						borderColor: 'rgb(0, 255, 0)',
+						borderDash: [],
+						borderDashOffset: 0.1,
+						borderJoinStyle: 'bevel',
+						borderWidth: 1.2,
+						fill: true,
+						skipNull: true,
+						tension: 0.1,
+					},
+					point: {
+						backgroundColor: 'rgb(255, 255, 0)',
+						borderWidth: 1,
+						borderColor: 'rgb(255, 255, 255)',
+						hitRadius: 1,
+						hoverRadius: 4,
+						hoverBorderWidth: 1,
+						radius: 3,
+					}
+				},
+				scales: {
+					xAxes: [{
+						id: 'firstXScaleID'
+					}],
+					yAxes: [{
+						id: 'firstYScaleID'
+					}]
+				}
+			},
+			scales: {
+				firstXScaleID: xScale,
+				firstYScaleID: yScale,
+			}
+		};
+
+		var controller = new Chart.controllers.line(chart, 0);
+		controller.update();
+		var point = chart.data.datasets[0].metaData[0];
+
+		controller.setHoverStyle(point);
+		expect(point._model.backgroundColor).toBe('rgb(229, 230, 0)');
+		expect(point._model.borderColor).toBe('rgb(230, 230, 230)');
+		expect(point._model.borderWidth).toBe(1);
+		expect(point._model.radius).toBe(4);
+
+		// Can set hover style per dataset
+		chart.data.datasets[0].pointHoverRadius = 3.3;
+		chart.data.datasets[0].pointHoverBackgroundColor = 'rgb(77, 79, 81)';
+		chart.data.datasets[0].pointHoverBorderColor = 'rgb(123, 125, 127)';
+		chart.data.datasets[0].pointHoverBorderWidth = 2.1;
+
+		controller.setHoverStyle(point);
+		expect(point._model.backgroundColor).toBe('rgb(77, 79, 81)');
+		expect(point._model.borderColor).toBe('rgb(123, 125, 127)');
+		expect(point._model.borderWidth).toBe(2.1);
+		expect(point._model.radius).toBe(3.3);
+
+		// Custom style
+		point.custom = {
+			hoverRadius: 4.4,
+			hoverBorderWidth: 5.5,
+			hoverBackgroundColor: 'rgb(0, 0, 0)',
+			hoverBorderColor: 'rgb(10, 10, 10)'
+		};
+
+		controller.setHoverStyle(point);
+		expect(point._model.backgroundColor).toBe('rgb(0, 0, 0)');
+		expect(point._model.borderColor).toBe('rgb(10, 10, 10)');
+		expect(point._model.borderWidth).toBe(5.5);
+		expect(point._model.radius).toBe(4.4);
+	});
+
+	it ('should remove hover styles', function() {
+		var data = {
+			datasets: [{
+				data: [10, 15, 0, -4],
+				label: 'dataset2',
+				xAxisID: 'firstXScaleID',
+				yAxisID: 'firstYScaleID'
+			}],
+			labels: ['label1', 'label2', 'label3', 'label4']
+		};
+		var mockContext = window.createMockContext();
+
+		var VerticalScaleConstructor = Chart.scaleService.getScaleConstructor('linear');
+		var verticalScaleConfig = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('linear'));
+		verticalScaleConfig = Chart.helpers.scaleMerge(verticalScaleConfig, Chart.defaults.line.scales.yAxes[0]);
+		var yScale = new VerticalScaleConstructor({
+			ctx: mockContext,
+			options: verticalScaleConfig,
+			data: data,
+			id: 'firstYScaleID'
+		});
+
+		// Update ticks & set physical dimensions
+		var verticalSize = yScale.update(50, 200);
+		yScale.top = 0;
+		yScale.left = 0;
+		yScale.right = verticalSize.width;
+		yScale.bottom = verticalSize.height;
+
+		var HorizontalScaleConstructor = Chart.scaleService.getScaleConstructor('category');
+		var horizontalScaleConfig = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('category'));
+		horizontalScaleConfig = Chart.helpers.scaleMerge(horizontalScaleConfig, Chart.defaults.line.scales.xAxes[0]);
+		var xScale = new HorizontalScaleConstructor({
+			ctx: mockContext,
+			options: horizontalScaleConfig,
+			data: data,
+			id: 'firstXScaleID'
+		});
+
+		// Update ticks & set physical dimensions
+		var horizontalSize = xScale.update(200, 50);
+		xScale.left = yScale.right;
+		xScale.top = yScale.bottom;
+		xScale.right = horizontalSize.width + xScale.left;
+		xScale.bottom = horizontalSize.height + xScale.top;
+
+
+		var chart = {
+			chartArea: {
+				bottom: 200,
+				left: xScale.left,
+				right: 200,
+				top: 0
+			},
+			data: data,
+			config: {
+				type: 'line'
+			},
+			options: {
+				elements: {
+					line: {
+						backgroundColor: 'rgb(255, 0, 0)',
+						borderCapStyle: 'round',
+						borderColor: 'rgb(0, 255, 0)',
+						borderDash: [],
+						borderDashOffset: 0.1,
+						borderJoinStyle: 'bevel',
+						borderWidth: 1.2,
+						fill: true,
+						skipNull: true,
+						tension: 0.1,
+					},
+					point: {
+						backgroundColor: 'rgb(255, 255, 0)',
+						borderWidth: 1,
+						borderColor: 'rgb(255, 255, 255)',
+						hitRadius: 1,
+						hoverRadius: 4,
+						hoverBorderWidth: 1,
+						radius: 3,
+					}
+				},
+				scales: {
+					xAxes: [{
+						id: 'firstXScaleID'
+					}],
+					yAxes: [{
+						id: 'firstYScaleID'
+					}]
+				}
+			},
+			scales: {
+				firstXScaleID: xScale,
+				firstYScaleID: yScale,
+			}
+		};
+
+		var controller = new Chart.controllers.line(chart, 0);
+		controller.update();
+		var point = chart.data.datasets[0].metaData[0];
+
+		chart.options.elements.point.backgroundColor = 'rgb(45, 46, 47)';
+		chart.options.elements.point.borderColor = 'rgb(50, 51, 52)';
+		chart.options.elements.point.borderWidth = 10.1;
+		chart.options.elements.point.radius = 1.01;
+
+		controller.removeHoverStyle(point);
+		expect(point._model.backgroundColor).toBe('rgb(45, 46, 47)');
+		expect(point._model.borderColor).toBe('rgb(50, 51, 52)');
+		expect(point._model.borderWidth).toBe(10.1);
+		expect(point._model.radius).toBe(1.01);
+
+		// Can set hover style per dataset
+		chart.data.datasets[0].radius = 3.3;
+		chart.data.datasets[0].pointBackgroundColor = 'rgb(77, 79, 81)';
+		chart.data.datasets[0].pointBorderColor = 'rgb(123, 125, 127)';
+		chart.data.datasets[0].pointBorderWidth = 2.1;
+
+		controller.removeHoverStyle(point);
+		expect(point._model.backgroundColor).toBe('rgb(77, 79, 81)');
+		expect(point._model.borderColor).toBe('rgb(123, 125, 127)');
+		expect(point._model.borderWidth).toBe(2.1);
+		expect(point._model.radius).toBe(3.3);
+
+		// Custom style
+		point.custom = {
+			radius: 4.4,
+			borderWidth: 5.5,
+			backgroundColor: 'rgb(0, 0, 0)',
+			borderColor: 'rgb(10, 10, 10)'
+		};
+
+		controller.removeHoverStyle(point);
+		expect(point._model.backgroundColor).toBe('rgb(0, 0, 0)');
+		expect(point._model.borderColor).toBe('rgb(10, 10, 10)');
+		expect(point._model.borderWidth).toBe(5.5);
+		expect(point._model.radius).toBe(4.4);
+	});
+});

test/core.element.tests.js

@@ -0,0 +1,45 @@
+// Test the core element functionality
+describe('Core element tests', function() {
+	it ('should transition model properties', function() {
+		var element = new Chart.Element({
+			_model: {
+				numberProp: 0,
+				numberProp2: 100,
+				_underscoreProp: 0,
+				stringProp: 'abc',
+				objectProp: {
+					myObject: true
+				},
+				colorProp: 'rgb(0, 0, 0)'
+			}
+		});
+
+		// First transition clones model into view
+		element.transition(0.25);
+		expect(element._view).toEqual(element._model);
+		expect(element._start).toEqual(element._model); // also cloned
+
+		expect(element._view.objectProp).toBe(element._model.objectProp); // not cloned
+		expect(element._start.objectProp).toEqual(element._model.objectProp); // not cloned
+
+		element._model.numberProp = 100;
+		element._model.numberProp2 = 250;
+		element._model._underscoreProp = 200;
+		element._model.stringProp = 'def'
+		element._model.newStringProp = 'newString';
+		element._model.colorProp = 'rgb(255, 255, 0)'
+
+		element.transition(0.25);
+		expect(element._view).toEqual({
+			numberProp: 25,
+			numberProp2: 137.5,
+			_underscoreProp: 0, // underscore props are not transition to a new value
+			stringProp: 'def',
+			newStringProp: 'newString',
+			objectProp: {
+				myObject: true
+			},
+			colorProp: 'rgb(64, 64, 0)',
+		});
+	});
+});

test/core.helpers.tests.js

@@ -0,0 +1,460 @@
+describe('Core helper tests', function() {
+
+	var helpers;
+
+	beforeAll(function() {
+		helpers = window.Chart.helpers;
+	});
+
+	it('Should iterate over an array and pass the extra data to that function', function() {
+		var testData = [0, 9, "abc"];
+		var scope = {}; // fake out the scope and ensure that 'this' is the correct thing
+
+		helpers.each(testData, function(item, index) {
+			expect(item).not.toBe(undefined);
+			expect(index).not.toBe(undefined);
+
+			expect(testData[index]).toBe(item);
+			expect(this).toBe(scope);
+		}, scope);
+
+		// Reverse iteration
+		var iterated = [];
+		helpers.each(testData, function(item, index) {
+			expect(item).not.toBe(undefined);
+			expect(index).not.toBe(undefined);
+
+			expect(testData[index]).toBe(item);
+			expect(this).toBe(scope);
+
+			iterated.push(item);
+		}, scope, true);
+
+		expect(iterated.slice().reverse()).toEqual(testData);
+	});
+
+	it('Should iterate over properties in an object', function() {
+		var testData = {
+			myProp1: 'abc',
+			myProp2: 276,
+			myProp3: ['a', 'b']
+		};
+
+		helpers.each(testData, function(value, key) {
+			if (key === 'myProp1') {
+				expect(value).toBe('abc');
+			} else if (key === 'myProp2') {
+				expect(value).toBe(276);
+			} else if (key === 'myProp3') {
+				expect(value).toEqual(['a', 'b']);
+			} else {
+				expect(false).toBe(true);
+			}
+		});
+	});
+
+	it('should not error when iterating over a null object', function() {
+		expect(function() {
+			helpers.each(undefined);
+		}).not.toThrow();
+	});
+
+	it('Should clone an object', function() {
+		var testData = {
+			myProp1: 'abc',
+			myProp2: ['a', 'b'],
+			myProp3: {
+				myProp4: 5,
+				myProp5: [1, 2]
+			}
+		};
+
+		var clone = helpers.clone(testData);
+		expect(clone).toEqual(testData);
+		expect(clone).not.toBe(testData);
+
+		expect(clone.myProp2).not.toBe(testData.myProp2);
+		expect(clone.myProp3).not.toBe(testData.myProp3);
+		expect(clone.myProp3.myProp5).not.toBe(testData.myProp3.myProp5);
+	});
+
+	it('should extend an object', function() {
+		var original = {
+			myProp1: 'abc',
+			myProp2: 56
+		};
+
+		var extension = {
+			myProp3: [2, 5, 6],
+			myProp2: 0
+		};
+
+		helpers.extend(original, extension);
+
+		expect(original).toEqual({
+			myProp1: 'abc',
+			myProp2: 0,
+			myProp3: [2, 5, 6],
+		});
+	});
+
+	it('Should merge a normal config without scales', function() {
+		var baseConfig = {
+			valueProp: 5,
+			arrayProp: [1, 2, 3, 4, 5, 6],
+			objectProp: {
+				prop1: 'abc',
+				prop2: 56
+			}
+		};
+
+		var toMerge = {
+			valueProp2: null,
+			arrayProp: ['a', 'c'],
+			objectProp: {
+				prop1: 'c',
+				prop3: 'prop3'
+			}
+		};
+
+		var merged = helpers.configMerge(baseConfig, toMerge);
+		expect(merged).toEqual({
+			valueProp: 5,
+			valueProp2: null,
+			arrayProp: ['a', 'c', 3, 4, 5, 6],
+			objectProp: {
+				prop1: 'c',
+				prop2: 56,
+				prop3: 'prop3'
+			}
+		});
+	});
+
+	it('should merge arrays containing objects', function() {
+		var baseConfig = {
+			arrayProp: [{
+				prop1: 'abc',
+				prop2: 56
+			}],
+		};
+
+		var toMerge = {
+			arrayProp: [{
+				prop1: 'myProp1',
+				prop3: 'prop3'
+			}, 2, {
+				prop1: 'myProp1'
+			}],
+		};
+
+		var merged = helpers.configMerge(baseConfig, toMerge);
+		expect(merged).toEqual({
+			arrayProp: [{
+				prop1: 'myProp1',
+				prop2: 56,
+				prop3: 'prop3'
+			},
+			2, {
+				prop1: 'myProp1'
+			}],
+		});
+	});
+
+	it ('Should merge scale configs', function() {
+		var baseConfig = {
+			scales: {
+				prop1: {
+					abc: 123,
+					def: '456'
+				},
+				prop2: 777,
+				yAxes: [{
+					type: 'linear',
+				}, {
+					type: 'log'
+				}]
+			}
+		};
+
+		var toMerge = {
+			scales: {
+				prop1: {
+					def: 'bbb',
+					ghi: 78
+				},
+				prop2: null,
+				yAxes: [{
+					type: 'linear',
+					axisProp: 456
+				}, {
+					// pulls in linear default config since axis type changes
+					type: 'linear',
+					position: 'right'
+				}, {
+					// Pulls in linear default config since axis not in base
+					type: 'linear'
+				}]
+			}
+		};
+
+		var merged = helpers.configMerge(baseConfig, toMerge);
+		expect(merged).toEqual({
+			scales: {
+				prop1: {
+					abc: 123,
+					def: 'bbb',
+					ghi: 78
+				},
+				prop2: null,
+				yAxes: [{
+					type: 'linear',
+					axisProp: 456
+				}, {
+					display: true,
+
+					gridLines: {
+						color: "rgba(0, 0, 0, 0.1)",
+						drawOnChartArea: true,
+						drawTicks: true, // draw ticks extending towards the label
+						lineWidth: 1,
+						offsetGridLines: false,
+						show: true,
+						zeroLineColor: "rgba(0,0,0,0.25)",
+						zeroLineWidth: 1,
+					},
+					position: "right",
+					scaleLabel: {
+						fontColor: '#666',
+						fontFamily: 'Helvetica Neue',
+						fontSize: 12,
+						fontStyle: 'normal',
+						labelString: '',
+						show: false,
+					},
+					ticks: {
+						beginAtZero: false,
+						fontColor: "#666",
+						fontFamily: "Helvetica Neue",
+						fontSize: 12,
+						fontStyle: "normal",
+						maxRotation: 90,
+						minRotation: 20,
+						mirror: false,
+						padding: 10,
+						reverse: false,
+						show: true,
+						template: "<%=value%>"
+					},
+					type: 'linear'
+				}, {
+					display: true,
+
+					gridLines: {
+						color: "rgba(0, 0, 0, 0.1)",
+						drawOnChartArea: true,
+						drawTicks: true, // draw ticks extending towards the label
+						lineWidth: 1,
+						offsetGridLines: false,
+						show: true,
+						zeroLineColor: "rgba(0,0,0,0.25)",
+						zeroLineWidth: 1,
+					},
+					position: "left",
+					scaleLabel: {
+						fontColor: '#666',
+						fontFamily: 'Helvetica Neue',
+						fontSize: 12,
+						fontStyle: 'normal',
+						labelString: '',
+						show: false,
+					},
+					ticks: {
+						beginAtZero: false,
+						fontColor: "#666",
+						fontFamily: "Helvetica Neue",
+						fontSize: 12,
+						fontStyle: "normal",
+						maxRotation: 90,
+						minRotation: 20,
+						mirror: false,
+						padding: 10,
+						reverse: false,
+						show: true,
+						template: "<%=value%>"
+					},
+					type: 'linear'
+				}]
+			}
+		});
+	});
+
+	it ('should get value or default', function() {
+		expect(helpers.getValueAtIndexOrDefault(98, 0, 56)).toBe(98);
+		expect(helpers.getValueAtIndexOrDefault(0, 0, 56)).toBe(0); 
+		expect(helpers.getValueAtIndexOrDefault(undefined, undefined, 56)).toBe(56);
+		expect(helpers.getValueAtIndexOrDefault([1, 2, 3], 1, 100)).toBe(2);
+		expect(helpers.getValueAtIndexOrDefault([1, 2, 3], 3, 100)).toBe(100);
+	});
+
+	it ('should filter an array', function() {
+		var data = [-10, 0, 6, 0, 7];
+		var callback = function(item) { return item > 2};
+		expect(helpers.where(data, callback)).toEqual([6, 7]);
+		expect(helpers.findNextWhere(data, callback)).toEqual(6);
+		expect(helpers.findNextWhere(data, callback, 2)).toBe(7);
+		expect(helpers.findNextWhere(data, callback, 4)).toBe(undefined);
+		expect(helpers.findPreviousWhere(data, callback)).toBe(7);
+		expect(helpers.findPreviousWhere(data, callback, 3)).toBe(6);
+		expect(helpers.findPreviousWhere(data, callback, 0)).toBe(undefined);
+	});
+
+	it ('Should get the correct sign', function() {
+		expect(helpers.sign(0)).toBe(0);
+		expect(helpers.sign(10)).toBe(1);
+		expect(helpers.sign(-5)).toBe(-1);
+	});
+
+	it ('should do a log10 operation', function() {
+		expect(helpers.log10(0)).toBe(-Infinity);
+		expect(helpers.log10(1)).toBe(0);
+		expect(helpers.log10(1000)).toBe(3);
+	});
+
+	it ('Should generate ids', function() {
+		expect(helpers.uid()).toBe('chart-0');
+		expect(helpers.uid()).toBe('chart-1');
+		expect(helpers.uid()).toBe('chart-2');
+		expect(helpers.uid()).toBe('chart-3');
+	});
+
+	it ('should detect a number', function() {
+		expect(helpers.isNumber(123)).toBe(true);
+		expect(helpers.isNumber('123')).toBe(true);
+		expect(helpers.isNumber(null)).toBe(false);
+		expect(helpers.isNumber(NaN)).toBe(false);
+		expect(helpers.isNumber(undefined)).toBe(false);
+		expect(helpers.isNumber('cbc')).toBe(false);
+	});
+
+	it ('should convert between radians and degrees', function() {
+		expect(helpers.toRadians(180)).toBe(Math.PI);
+		expect(helpers.toRadians(90)).toBe(0.5 * Math.PI);
+		expect(helpers.toDegrees(Math.PI)).toBe(180);
+		expect(helpers.toDegrees(Math.PI * 3 /2)).toBe(270);
+	});
+
+	it ('should get an angle from a point', function() {
+		var center = {
+			x: 0,
+			y: 0
+		};
+
+		expect(helpers.getAngleFromPoint(center, {x: 0, y: 10})).toEqual({
+			angle: Math.PI / 2,
+			distance: 10,
+		});
+
+		expect(helpers.getAngleFromPoint(center, {x: Math.sqrt(2), y: Math.sqrt(2)})).toEqual({
+			angle: Math.PI / 4,
+			distance: 2
+		});
+
+		expect(helpers.getAngleFromPoint(center, {x: -1.0 * Math.sqrt(2), y: -1.0 * Math.sqrt(2)})).toEqual({
+			angle: Math.PI * 1.25,
+			distance: 2
+		});
+	});
+
+	it ('should spline curves', function() {
+		expect(helpers.splineCurve({x: 0, y: 0}, {x: 1, y: 1}, { x: 2, y: 0}, 0)).toEqual({
+			previous: {
+				x: 1,
+				y: 1,
+			},
+			next: {
+				x: 1,
+				y: 1,
+			}
+		});
+
+		expect(helpers.splineCurve({x: 0, y: 0}, {x: 1, y: 1}, { x: 2, y: 0}, 1)).toEqual({
+			previous: {
+				x: 0,
+				y: 1,
+			},
+			next: {
+				x: 2,
+				y: 1,
+			}
+		});
+	});
+
+	it ('should get the next or previous item in an array', function() {
+		var testData = [0, 1, 2];
+
+		expect(helpers.nextItem(testData, 0, false)).toEqual(1);
+		expect(helpers.nextItem(testData, 2, false)).toEqual(2);
+		expect(helpers.nextItem(testData, 2, true)).toEqual(0);
+		expect(helpers.nextItem(testData, 1, true)).toEqual(2);
+		expect(helpers.nextItem(testData, -1, false)).toEqual(0);
+
+		expect(helpers.previousItem(testData, 0, false)).toEqual(0);
+		expect(helpers.previousItem(testData, 0, true)).toEqual(2);
+		expect(helpers.previousItem(testData, 2, false)).toEqual(1);
+		expect(helpers.previousItem(testData, 1, true)).toEqual(0);
+	});
+
+	it ('should clear a canvas', function() {
+		var context = window.createMockContext();
+		helpers.clear({
+			width: 100,
+			height: 150,
+			ctx: context
+		});
+
+		expect(context.getCalls()).toEqual([{
+			name: 'clearRect',
+			args: [0, 0, 100, 150]
+		}]);
+	});
+
+	it ('should draw a rounded rectangle', function() {
+		var context = window.createMockContext();
+		helpers.drawRoundedRectangle(context, 10, 20, 30, 40, 5);
+
+		expect(context.getCalls()).toEqual([{
+			name: 'beginPath',
+			args: []
+		}, {
+			name: 'moveTo',
+			args: [15, 20]
+		}, {
+			name: 'lineTo',
+			args: [35, 20]
+		}, {
+			name: 'quadraticCurveTo',
+			args: [40, 20, 40, 25]
+		}, {
+			name: 'lineTo',
+			args: [40, 55]
+		}, {
+			name: 'quadraticCurveTo',
+			args: [40, 60, 35, 60]
+		}, {
+			name: 'lineTo',
+			args: [15, 60]
+		}, {
+			name: 'quadraticCurveTo',
+			args: [10, 60, 10, 55]
+		}, {
+			name: 'lineTo',
+			args: [10, 25]
+		}, {
+			name: 'quadraticCurveTo',
+			args: [10, 20, 15, 20]
+		}, {
+			name: 'closePath',
+			args: []
+		}])
+	});
+});

test/element.arc.tests.js

@@ -0,0 +1,176 @@
+// Test the rectangle element
+
+describe('Arc element tests', function() {
+	it ('Should be constructed', function() {
+		var arc = new Chart.elements.Arc({
+			_datasetIndex: 2,
+			_index: 1
+		});
+
+		expect(arc).not.toBe(undefined);
+		expect(arc._datasetIndex).toBe(2);
+		expect(arc._index).toBe(1);
+	});
+
+	it ('should determine if in range', function() {
+		var arc = new Chart.elements.Arc({
+			_datasetIndex: 2,
+			_index: 1
+		});
+
+		// Make sure we can run these before the view is added
+		expect(arc.inRange(2, 2)).toBe(false);
+		expect(arc.inLabelRange(2)).toBe(false);
+
+		// Mock out the view as if the controller put it there
+		arc._view = {
+			startAngle: 0,
+			endAngle: Math.PI / 2,
+			x: 0,
+			y: 0,
+			innerRadius: 5,
+			outerRadius: 10,
+		};
+
+		expect(arc.inRange(2, 2)).toBe(false);
+		expect(arc.inRange(7, 0)).toBe(true);
+		expect(arc.inRange(0, 11)).toBe(false);
+		expect(arc.inRange(Math.sqrt(32), Math.sqrt(32))).toBe(true);
+		expect(arc.inRange(-1.0 * Math.sqrt(7), Math.sqrt(7))).toBe(false);
+	});
+
+	it ('should get the tooltip position', function() {
+		var arc = new Chart.elements.Arc({
+			_datasetIndex: 2,
+			_index: 1
+		});
+
+		// Mock out the view as if the controller put it there
+		arc._view = {
+			startAngle: 0,
+			endAngle: Math.PI / 2,
+			x: 0,
+			y: 0,
+			innerRadius: 0,
+			outerRadius: Math.sqrt(2),
+		};
+
+		var pos = arc.tooltipPosition();
+		expect(pos.x).toBeCloseTo(0.5);
+		expect(pos.y).toBeCloseTo(0.5);
+	});
+
+	it ('should draw correctly with no border', function() {
+		var mockContext = window.createMockContext();
+		var arc = new Chart.elements.Arc({
+			_datasetIndex: 2,
+			_index: 1,
+			_chart: {
+				ctx: mockContext,
+			}
+		});
+
+		// Mock out the view as if the controller put it there
+		arc._view = {
+			startAngle: 0,
+			endAngle: Math.PI / 2,
+			x: 10,
+			y: 5,
+			innerRadius: 1,
+			outerRadius: 3,
+
+			backgroundColor: 'rgb(0, 0, 255)',
+			borderColor: 'rgb(255, 0, 0)',
+		};
+
+		arc.draw();
+
+		expect(mockContext.getCalls()).toEqual([{
+			name: 'beginPath',
+			args: []
+		}, {
+			name: 'arc',
+			args: [10, 5, 3, 0, Math.PI / 2]
+		}, {
+			name: 'arc',
+			args: [10, 5, 1, Math.PI / 2, 0, true]
+		}, {
+			name: 'closePath',
+			args: []
+		}, {
+			name: 'setStrokeStyle',
+			args: ['rgb(255, 0, 0)']
+		}, {
+			name: 'setLineWidth',
+			args: [undefined]
+		}, {
+			name: 'setFillStyle',
+			args: ['rgb(0, 0, 255)']
+		}, {
+			name: 'fill',
+			args: []
+		}, {
+			name: 'setLineJoin',
+			args: ['bevel']
+		}]);
+	});
+
+	it ('should draw correctly with a border', function() {
+		var mockContext = window.createMockContext();
+		var arc = new Chart.elements.Arc({
+			_datasetIndex: 2,
+			_index: 1,
+			_chart: {
+				ctx: mockContext,
+			}
+		});
+
+		// Mock out the view as if the controller put it there
+		arc._view = {
+			startAngle: 0,
+			endAngle: Math.PI / 2,
+			x: 10,
+			y: 5,
+			innerRadius: 1,
+			outerRadius: 3,
+
+			backgroundColor: 'rgb(0, 0, 255)',
+			borderColor: 'rgb(255, 0, 0)',
+			borderWidth: 5
+		};
+
+		arc.draw();
+
+		expect(mockContext.getCalls()).toEqual([{
+			name: 'beginPath',
+			args: []
+		}, {
+			name: 'arc',
+			args: [10, 5, 3, 0, Math.PI / 2]
+		}, {
+			name: 'arc',
+			args: [10, 5, 1, Math.PI / 2, 0, true]
+		}, {
+			name: 'closePath',
+			args: []
+		}, {
+			name: 'setStrokeStyle',
+			args: ['rgb(255, 0, 0)']
+		}, {
+			name: 'setLineWidth',
+			args: [5]
+		}, {
+			name: 'setFillStyle',
+			args: ['rgb(0, 0, 255)']
+		}, {
+			name: 'fill',
+			args: []
+		}, {
+			name: 'setLineJoin',
+			args: ['bevel']
+		}, {
+			name: 'stroke',
+			args: []
+		}]);
+	});
+});

test/element.line.tests.js

@@ -0,0 +1,526 @@
+// Tests for the line element
+describe('Line element tests', function() {
+	it ('should be constructed', function() {
+		var line = new Chart.elements.Line({
+			_datasetindex: 2,
+			_points: [1, 2, 3, 4]
+		});
+
+		expect(line).not.toBe(undefined);
+		expect(line._datasetindex).toBe(2);
+		expect(line._points).toEqual([1, 2, 3, 4]);
+	});
+
+	it ('should draw with default settings', function() {
+		var mockContext = window.createMockContext();
+
+		// Create our points
+		var points = [];
+		points.push(new Chart.elements.Point({
+			_datasetindex: 2,
+			_index: 0,
+			_view: {
+				x: 0,
+				y: 10
+			}
+		}));
+		points.push(new Chart.elements.Point({
+			_datasetindex: 2,
+			_index: 1,
+			_view: {
+				x: 5,
+				y: 0
+			}
+		}));
+		points.push(new Chart.elements.Point({
+			_datasetindex: 2,
+			_index: 2,
+			_view: {
+				x: 15,
+				y: -10
+			}
+		}));
+		points.push(new Chart.elements.Point({
+			_datasetindex: 2,
+			_index: 3,
+			_view: {
+				x: 19,
+				y: -5
+			}
+		}));
+
+		var line = new Chart.elements.Line({
+			_datasetindex: 2,
+			_chart: {
+				ctx: mockContext,
+			},
+			_children: points,
+			// Need to provide some settings
+			_view: {
+				fill: false, // don't want to fill
+				tension: 0.0, // no bezier curve for now
+			}
+		})
+
+		line.draw();
+
+		expect(mockContext.getCalls()).toEqual([{
+			name: 'save',
+			args: [],
+		}, {
+			name: 'moveTo',
+			args: [0, 10]
+		}, {
+			name: 'lineTo',
+			args: [5, 0]
+		}, {
+			name: 'lineTo',
+			args: [15, -10]
+		}, {
+			name: 'lineTo',
+			args: [19, -5]
+		}, {
+			name: 'setLineCap',
+			args: ['butt']
+		}, {
+			name: 'setLineDash',
+			args: [[]]
+		}, {
+			name: 'setLineDashOffset',
+			args: [0.0]
+		}, {
+			name: 'setLineJoin',
+			args: ['miter']
+		}, {
+			name: 'setLineWidth',
+			args: [3]
+		}, {
+			name: 'setStrokeStyle',
+			args: ['rgba(0,0,0,0.1)']
+		}, {
+			name: 'beginPath',
+			args: []
+		}, {
+			name: 'moveTo',
+			args: [0, 10]
+		}, {
+			name: 'lineTo',
+			args: [5, 0]
+		}, {
+			name: 'lineTo',
+			args: [15, -10]
+		}, {
+			name: 'lineTo',
+			args: [19, -5]
+		}, {
+			name: 'stroke',
+			args: [],
+		}, {
+			name: 'restore',
+			args: []
+		}])
+	});
+
+	it ('should draw with custom settings', function() {
+		var mockContext = window.createMockContext();
+
+		// Create our points
+		var points = [];
+		points.push(new Chart.elements.Point({
+			_datasetindex: 2,
+			_index: 0,
+			_view: {
+				x: 0,
+				y: 10
+			}
+		}));
+		points.push(new Chart.elements.Point({
+			_datasetindex: 2,
+			_index: 1,
+			_view: {
+				x: 5,
+				y: 0
+			}
+		}));
+		points.push(new Chart.elements.Point({
+			_datasetindex: 2,
+			_index: 2,
+			_view: {
+				x: 15,
+				y: -10
+			}
+		}));
+		points.push(new Chart.elements.Point({
+			_datasetindex: 2,
+			_index: 3,
+			_view: {
+				x: 19,
+				y: -5
+			}
+		}));
+
+		var line = new Chart.elements.Line({
+			_datasetindex: 2,
+			_chart: {
+				ctx: mockContext,
+			},
+			_children: points,
+			// Need to provide some settings
+			_view: {
+				fill: true, 
+				scaleZero: 2, // for filling lines
+				tension: 0.0, // no bezier curve for now
+
+				borderCapStyle: 'round',
+				borderColor: 'rgb(255, 255, 0)',
+				borderDash: [2, 2],
+				borderDashOffset: 1.5,
+				borderJoinStyle: 'bevel',
+				borderWidth: 4,
+				backgroundColor: 'rgb(0, 0, 0)'
+			}
+		})
+
+		line.draw();
+
+		var expected = [{
+			name: 'save',
+			args: [],
+		}, {
+			name: 'moveTo',
+			args: [0, 10]
+		}, {
+			name: 'lineTo',
+			args: [5, 0]
+		}, {
+			name: 'lineTo',
+			args: [15, -10]
+		}, {
+			name: 'lineTo',
+			args: [19, -5]
+		}, {
+			name: 'lineTo',
+			args: [19, 2]
+		}, {
+			name: 'lineTo',
+			args: [0, 2]
+		}, {
+			name: 'setFillStyle',
+			args: ['rgb(0, 0, 0)']
+		}, {
+			name: 'closePath',
+			args: []
+		}, {
+			name: 'fill',
+			args: []
+		}, {
+			name: 'setLineCap',
+			args: ['round']
+		}, {
+			name: 'setLineDash',
+			args: [[2, 2]]
+		}, {
+			name: 'setLineDashOffset',
+			args: [1.5]
+		}, {
+			name: 'setLineJoin',
+			args: ['bevel']
+		}, {
+			name: 'setLineWidth',
+			args: [4]
+		}, {
+			name: 'setStrokeStyle',
+			args: ['rgb(255, 255, 0)']
+		}, {
+			name: 'beginPath',
+			args: []
+		}, {
+			name: 'moveTo',
+			args: [0, 10]
+		}, {
+			name: 'lineTo',
+			args: [5, 0]
+		}, {
+			name: 'lineTo',
+			args: [15, -10]
+		}, {
+			name: 'lineTo',
+			args: [19, -5]
+		}, {
+			name: 'stroke',
+			args: [],
+		}, {
+			name: 'restore',
+			args: []
+		}];
+		expect(mockContext.getCalls()).toEqual(expected)
+	});
+
+	it ('should be able to draw with a loop back to the beginning point', function() {
+		var mockContext = window.createMockContext();
+
+		// Create our points
+		var points = [];
+		points.push(new Chart.elements.Point({
+			_datasetindex: 2,
+			_index: 0,
+			_view: {
+				x: 0,
+				y: 10
+			}
+		}));
+		points.push(new Chart.elements.Point({
+			_datasetindex: 2,
+			_index: 1,
+			_view: {
+				x: 5,
+				y: 0
+			}
+		}));
+		points.push(new Chart.elements.Point({
+			_datasetindex: 2,
+			_index: 2,
+			_view: {
+				x: 15,
+				y: -10
+			}
+		}));
+		points.push(new Chart.elements.Point({
+			_datasetindex: 2,
+			_index: 3,
+			_view: {
+				x: 19,
+				y: -5
+			}
+		}));
+
+		var line = new Chart.elements.Line({
+			_datasetindex: 2,
+			_chart: {
+				ctx: mockContext,
+			},
+			_children: points,
+			_loop: true, // want the line to loop back to the first point
+			// Need to provide some settings
+			_view: {
+				fill: false, // don't want to fill
+				tension: 0.0, // no bezier curve for now
+			}
+		})
+
+		line.draw();
+
+		expect(mockContext.getCalls()).toEqual([{
+			name: 'save',
+			args: [],
+		}, {
+			name: 'moveTo',
+			args: [0, 10]
+		}, {
+			name: 'lineTo',
+			args: [5, 0]
+		}, {
+			name: 'lineTo',
+			args: [15, -10]
+		}, {
+			name: 'lineTo',
+			args: [19, -5]
+		}, {
+			name: 'lineTo',
+			args: [0, 10]
+		}, {
+			name: 'setLineCap',
+			args: ['butt']
+		}, {
+			name: 'setLineDash',
+			args: [[]]
+		}, {
+			name: 'setLineDashOffset',
+			args: [0.0]
+		}, {
+			name: 'setLineJoin',
+			args: ['miter']
+		}, {
+			name: 'setLineWidth',
+			args: [3]
+		}, {
+			name: 'setStrokeStyle',
+			args: ['rgba(0,0,0,0.1)']
+		}, {
+			name: 'beginPath',
+			args: []
+		}, {
+			name: 'moveTo',
+			args: [0, 10]
+		}, {
+			name: 'lineTo',
+			args: [5, 0]
+		}, {
+			name: 'lineTo',
+			args: [15, -10]
+		}, {
+			name: 'lineTo',
+			args: [19, -5]
+		}, {
+			name: 'lineTo',
+			args: [0, 10]
+		}, {
+			name: 'stroke',
+			args: [],
+		}, {
+			name: 'restore',
+			args: []
+		}])
+	});
+
+	it ('should draw with bezier curves if tension > 0', function() {
+		var mockContext = window.createMockContext();
+
+		// Create our points
+		var points = [];
+		points.push(new Chart.elements.Point({
+			_datasetindex: 2,
+			_index: 0,
+			_view: {
+				x: 0,
+				y: 10,
+				controlPointNextX: 1,
+				controlPointNextY: 1,
+				controlPointPreviousX: 0,
+				controlPointPreviousY: 0,
+			}
+		}));
+		points.push(new Chart.elements.Point({
+			_datasetindex: 2,
+			_index: 1,
+			_view: {
+				x: 5,
+				y: 0,
+				controlPointNextX: 6,
+				controlPointNextY: 7,
+				controlPointPreviousX: 4,
+				controlPointPreviousY: 3,
+			}
+		}));
+		points.push(new Chart.elements.Point({
+			_datasetindex: 2,
+			_index: 2,
+			_view: {
+				x: 15,
+				y: -10,
+				controlPointNextX: 16,
+				controlPointNextY: 17,
+				controlPointPreviousX: 14,
+				controlPointPreviousY: 13,
+			}
+		}));
+		points.push(new Chart.elements.Point({
+			_datasetindex: 2,
+			_index: 3,
+			_view: {
+				x: 19,
+				y: -5,
+				controlPointNextX: 20,
+				controlPointNextY: 21,
+				controlPointPreviousX: 18,
+				controlPointPreviousY: 17,
+			}
+		}));
+
+		var line = new Chart.elements.Line({
+			_datasetindex: 2,
+			_chart: {
+				ctx: mockContext,
+			},
+			_children: points,
+			// Need to provide some settings
+			_view: {
+				fill: true, 
+				scaleZero: 2, // for filling lines
+				tension: 0.5, // have bezier curves
+
+				borderCapStyle: 'round',
+				borderColor: 'rgb(255, 255, 0)',
+				borderDash: [2, 2],
+				borderDashOffset: 1.5,
+				borderJoinStyle: 'bevel',
+				borderWidth: 4,
+				backgroundColor: 'rgb(0, 0, 0)'
+			}
+		})
+
+		line.draw();
+
+		var expected = [{
+			name: 'save',
+			args: [],
+		}, {
+			name: 'moveTo',
+			args: [0, 10]
+		}, {
+			name: 'bezierCurveTo',
+			args: [1, 1, 4, 3, 5, 0]
+		}, {
+			name: 'bezierCurveTo',
+			args: [6, 7, 14, 13, 15, -10]
+		}, {
+			name: 'bezierCurveTo',
+			args: [16, 17, 18, 17, 19, -5]
+		}, {
+			name: 'lineTo',
+			args: [19, 2]
+		}, {
+			name: 'lineTo',
+			args: [0, 2]
+		}, {
+			name: 'setFillStyle',
+			args: ['rgb(0, 0, 0)']
+		}, {
+			name: 'closePath',
+			args: []
+		}, {
+			name: 'fill',
+			args: []
+		}, {
+			name: 'setLineCap',
+			args: ['round']
+		}, {
+			name: 'setLineDash',
+			args: [[2, 2]]
+		}, {
+			name: 'setLineDashOffset',
+			args: [1.5]
+		}, {
+			name: 'setLineJoin',
+			args: ['bevel']
+		}, {
+			name: 'setLineWidth',
+			args: [4]
+		}, {
+			name: 'setStrokeStyle',
+			args: ['rgb(255, 255, 0)']
+		}, {
+			name: 'beginPath',
+			args: []
+		}, {
+			name: 'moveTo',
+			args: [0, 10]
+		}, {
+			name: 'bezierCurveTo',
+			args: [1, 1, 4, 3, 5, 0]
+		}, {
+			name: 'bezierCurveTo',
+			args: [6, 7, 14, 13, 15, -10]
+		}, {
+			name: 'bezierCurveTo',
+			args: [16, 17, 18, 17, 19, -5]
+		}, {
+			name: 'stroke',
+			args: [],
+		}, {
+			name: 'restore',
+			args: []
+		}];
+		expect(mockContext.getCalls()).toEqual(expected)
+	});
+});

test/element.point.tests.js

@@ -0,0 +1,190 @@
+// Test the point element
+
+describe('Point element tests', function() {
+	it ('Should be constructed', function() {
+		var point = new Chart.elements.Point({
+			_datasetIndex: 2,
+			_index: 1
+		});
+
+		expect(point).not.toBe(undefined);
+		expect(point._datasetIndex).toBe(2);
+		expect(point._index).toBe(1);
+	});
+
+	it ('Should correctly identify as in range', function() {
+		var point = new Chart.elements.Point({
+			_datasetIndex: 2,
+			_index: 1
+		});
+
+		// Safely handles if these are called before the viewmodel is instantiated
+		expect(point.inRange(5)).toBe(false);
+		expect(point.inLabelRange(5)).toBe(false);
+
+		// Attach a view object as if we were the controller
+		point._view = {
+			radius: 2,
+			hitRadius: 3,
+			x: 10,
+			y: 15
+		};
+
+		expect(point.inRange(10, 15)).toBe(true);
+		expect(point.inRange(10, 10)).toBe(false);
+		expect(point.inRange(10, 5)).toBe(false);
+		expect(point.inRange(5, 5)).toBe(false);
+
+		expect(point.inLabelRange(5)).toBe(false);
+		expect(point.inLabelRange(7)).toBe(true);
+		expect(point.inLabelRange(10)).toBe(true);
+		expect(point.inLabelRange(12)).toBe(true);
+		expect(point.inLabelRange(15)).toBe(false);
+		expect(point.inLabelRange(20)).toBe(false);
+	});
+
+	it ('should get the correct tooltip position', function() {
+		var point = new Chart.elements.Point({
+			_datasetIndex: 2,
+			_index: 1
+		});
+
+		// Attach a view object as if we were the controller
+		point._view = {
+			radius: 2,
+			borderWidth: 6,
+			x: 10,
+			y: 15
+		};
+
+		expect(point.tooltipPosition()).toEqual({
+			x: 10,
+			y: 15,
+			padding: 8
+		});
+	});
+
+	it ('should draw correctly', function() {
+		var mockContext = window.createMockContext();
+		var point = new Chart.elements.Point({
+			_datasetIndex: 2,
+			_index: 1,
+			_chart: {
+				ctx: mockContext,
+			}
+		});
+
+		// Attach a view object as if we were the controller
+		point._view = {
+			radius: 2,
+			hitRadius: 3,
+			borderColor: 'rgba(1, 2, 3, 1)',
+			borderWidth: 6,
+			backgroundColor: 'rgba(0, 255, 0)',
+			x: 10,
+			y: 15,
+			ctx: mockContext
+		};
+
+		point.draw();
+
+		expect(mockContext.getCalls()).toEqual([{
+			name: 'beginPath',
+			args: []
+		}, {
+			name: 'arc',
+			args: [10, 15, 2, 0, 2 * Math.PI]
+		}, {
+			name: 'closePath',
+			args: [],
+		}, {
+			name: 'setStrokeStyle',
+			args: ['rgba(1, 2, 3, 1)']
+		}, {
+			name: 'setLineWidth',
+			args: [6]
+		}, {
+			name: 'setFillStyle',
+			args: ['rgba(0, 255, 0)']
+		}, {
+			name: 'fill',
+			args: [],
+		}, {
+			name: 'stroke',
+			args: []
+		}]);
+	});
+
+	it ('should draw correctly with default settings if necessary', function() {
+		var mockContext = window.createMockContext();
+		var point = new Chart.elements.Point({
+			_datasetIndex: 2,
+			_index: 1,
+			_chart: {
+				ctx: mockContext,
+			}
+		});
+
+		// Attach a view object as if we were the controller
+		point._view = {
+			radius: 2,
+			hitRadius: 3,
+			x: 10,
+			y: 15,
+			ctx: mockContext
+		};
+
+		point.draw();
+
+		expect(mockContext.getCalls()).toEqual([{
+			name: 'beginPath',
+			args: []
+		}, {
+			name: 'arc',
+			args: [10, 15, 2, 0, 2 * Math.PI]
+		}, {
+			name: 'closePath',
+			args: [],
+		}, {
+			name: 'setStrokeStyle',
+			args: ['rgba(0,0,0,0.1)']
+		}, {
+			name: 'setLineWidth',
+			args: [1]
+		}, {
+			name: 'setFillStyle',
+			args: ['rgba(0,0,0,0.1)']
+		}, {
+			name: 'fill',
+			args: [],
+		}, {
+			name: 'stroke',
+			args: []
+		}]);
+	});
+
+	it ('should not draw if skipped', function() {
+		var mockContext = window.createMockContext();
+		var point = new Chart.elements.Point({
+			_datasetIndex: 2,
+			_index: 1,
+			_chart: {
+				ctx: mockContext,
+			}
+		});
+
+		// Attach a view object as if we were the controller
+		point._view = {
+			radius: 2,
+			hitRadius: 3,
+			x: 10,
+			y: 15,
+			ctx: mockContext,
+			skip: true
+		};
+
+		point.draw();
+
+		expect(mockContext.getCalls()).toEqual([]);
+	});
+});

test/element.rectangle.tests.js

@@ -0,0 +1,246 @@
+// Test the rectangle element
+
+describe('Rectangle element tests', function() {
+	it ('Should be constructed', function() {
+		var rectangle = new Chart.elements.Rectangle({
+			_datasetIndex: 2,
+			_index: 1
+		});
+
+		expect(rectangle).not.toBe(undefined);
+		expect(rectangle._datasetIndex).toBe(2);
+		expect(rectangle._index).toBe(1);
+	});
+
+	it ('Should correctly identify as in range', function() {
+		var rectangle = new Chart.elements.Rectangle({
+			_datasetIndex: 2,
+			_index: 1
+		});
+
+		// Safely handles if these are called before the viewmodel is instantiated
+		expect(rectangle.inRange(5)).toBe(false);
+		expect(rectangle.inLabelRange(5)).toBe(false);
+
+		// Attach a view object as if we were the controller
+		rectangle._view = {
+			base: 0,
+			width: 4,
+			x: 10,
+			y: 15
+		};
+
+		expect(rectangle.inRange(10, 15)).toBe(true);
+		expect(rectangle.inRange(10, 10)).toBe(true);
+		expect(rectangle.inRange(10, 16)).toBe(false);
+		expect(rectangle.inRange(5, 5)).toBe(false);
+
+		expect(rectangle.inLabelRange(5)).toBe(false);
+		expect(rectangle.inLabelRange(7)).toBe(false);
+		expect(rectangle.inLabelRange(10)).toBe(true);
+		expect(rectangle.inLabelRange(12)).toBe(true);
+		expect(rectangle.inLabelRange(15)).toBe(false);
+		expect(rectangle.inLabelRange(20)).toBe(false);
+
+		// Test when the y is below the base (negative bar)
+		var negativeRectangle = new Chart.elements.Rectangle({
+			_datasetIndex: 2,
+			_index: 1
+		});
+
+		// Attach a view object as if we were the controller
+		negativeRectangle._view = {
+			base: 0,
+			width: 4,
+			x: 10,
+			y: -15
+		};
+
+		expect(negativeRectangle.inRange(10, -16)).toBe(false);
+		expect(negativeRectangle.inRange(10, 1)).toBe(false);
+		expect(negativeRectangle.inRange(10, -5)).toBe(true);
+	});
+
+	it ('should get the correct height', function() {
+		var rectangle = new Chart.elements.Rectangle({
+			_datasetIndex: 2,
+			_index: 1
+		});
+
+		// Attach a view object as if we were the controller
+		rectangle._view = {
+			base: 0,
+			width: 4,
+			x: 10,
+			y: 15
+		};
+
+		expect(rectangle.height()).toBe(-15);
+
+		// Test when the y is below the base (negative bar)
+		var negativeRectangle = new Chart.elements.Rectangle({
+			_datasetIndex: 2,
+			_index: 1
+		});
+
+		// Attach a view object as if we were the controller
+		negativeRectangle._view = {
+			base: -10,
+			width: 4,
+			x: 10,
+			y: -15
+		};
+		expect(negativeRectangle.height()).toBe(5);
+	});
+
+	it ('should get the correct tooltip position', function() {
+		var rectangle = new Chart.elements.Rectangle({
+			_datasetIndex: 2,
+			_index: 1
+		});
+
+		// Attach a view object as if we were the controller
+		rectangle._view = {
+			base: 0,
+			width: 4,
+			x: 10,
+			y: 15
+		};
+
+		expect(rectangle.tooltipPosition()).toEqual({
+			x: 10,
+			y: 0,
+		});
+
+		// Test when the y is below the base (negative bar)
+		var negativeRectangle = new Chart.elements.Rectangle({
+			_datasetIndex: 2,
+			_index: 1
+		});
+
+		// Attach a view object as if we were the controller
+		negativeRectangle._view = {
+			base: -10,
+			width: 4,
+			x: 10,
+			y: -15
+		};
+
+		expect(negativeRectangle.tooltipPosition()).toEqual({
+			x: 10,
+			y: -15,
+		});
+	});
+
+	it ('should draw correctly', function() {
+		var mockContext = window.createMockContext();
+		var rectangle = new Chart.elements.Rectangle({
+			_datasetIndex: 2,
+			_index: 1,
+			_chart: {
+				ctx: mockContext,
+			}
+		});
+
+		// Attach a view object as if we were the controller
+		rectangle._view = {
+			backgroundColor: 'rgb(255, 0, 0)',
+			base: 0,
+			borderColor: 'rgb(0, 0, 255)',
+			borderWidth: 1,
+			ctx: mockContext,
+			width: 4,
+			x: 10,
+			y: 15,
+		};
+
+		rectangle.draw();
+
+		expect(mockContext.getCalls()).toEqual([{
+			name: 'beginPath',
+			args: [],
+		}, {
+			name: 'setFillStyle',
+			args: ['rgb(255, 0, 0)']
+		}, {
+			name: 'setStrokeStyle',
+			args: ['rgb(0, 0, 255)'],
+		}, {
+			name: 'setLineWidth',
+			args: [1]
+		}, {
+			name: 'moveTo',
+			args: [8.5, 0]
+		}, {
+			name: 'lineTo',
+			args: [8.5, 15.5]
+		}, {
+			name: 'lineTo',
+			args: [11.5, 15.5]
+		}, {
+			name: 'lineTo',
+			args: [11.5, 0]
+		}, {
+			name: 'fill',
+			args: [],
+		}, {
+			name: 'stroke',
+			args: []
+		}]);
+	});
+
+	it ('should draw correctly with no stroke', function() {
+		var mockContext = window.createMockContext();
+		var rectangle = new Chart.elements.Rectangle({
+			_datasetIndex: 2,
+			_index: 1,
+			_chart: {
+				ctx: mockContext,
+			}
+		});
+
+		// Attach a view object as if we were the controller
+		rectangle._view = {
+			backgroundColor: 'rgb(255, 0, 0)',
+			base: 0,
+			borderColor: 'rgb(0, 0, 255)',
+			ctx: mockContext,
+			width: 4,
+			x: 10,
+			y: 15,
+		};
+
+		rectangle.draw();
+
+		expect(mockContext.getCalls()).toEqual([{
+			name: 'beginPath',
+			args: [],
+		}, {
+			name: 'setFillStyle',
+			args: ['rgb(255, 0, 0)']
+		}, {
+			name: 'setStrokeStyle',
+			args: ['rgb(0, 0, 255)'],
+		}, {
+			name: 'setLineWidth',
+			args: [undefined]
+		}, {
+			name: 'moveTo',
+			args: [8, 0]
+		}, {
+			name: 'lineTo',
+			args: [8, 15]
+		}, {
+			name: 'lineTo',
+			args: [12, 15]
+		}, {
+			name: 'lineTo',
+			args: [12, 0]
+		}, {
+			name: 'fill',
+			args: [],
+		}]);
+	});
+
+
+});

test/mockContext.js

@@ -0,0 +1,122 @@
+(function() {
+	// Code from http://stackoverflow.com/questions/4406864/html-canvas-unit-testing
+	var Context = function() {
+		this._calls = []; // names/args of recorded calls
+		this._initMethods();
+
+		this._fillStyle = null;
+		this._lineCap = null;
+		this._lineDashOffset = null;
+		this._lineJoin = null;
+		this._lineWidth = null;
+		this._strokeStyle = null;
+
+		// Define properties here so that we can record each time they are set
+		Object.defineProperties(this, {
+			"fillStyle": {
+				'get': function() { return this._fillStyle; },
+				'set': function(style) {
+					this._fillStyle = style;
+					this.record('setFillStyle', [style]);
+				}
+			},
+			'lineCap': {
+				'get': function() { return this._lineCap; },
+				'set': function(cap) {
+					this._lineCap = cap;
+					this.record('setLineCap', [cap]);
+				}
+			},
+			'lineDashOffset': {
+				'get': function() { return this._lineDashOffset; },
+				'set': function(offset) {
+					this._lineDashOffset = offset;
+					this.record('setLineDashOffset', [offset]);
+				}
+			},
+			'lineJoin': {
+				'get': function() { return this._lineJoin; },
+				'set': function(join) {
+					this._lineJoin = join;
+					this.record('setLineJoin', [join]);
+				}
+			},
+			'lineWidth': {
+				'get': function() { return this._lineWidth; },
+				'set': function (width) {
+					this._lineWidth = width;
+					this.record('setLineWidth', [width]);
+				}
+			},
+			'strokeStyle': {
+				'get': function() { return this._strokeStyle; },
+				'set': function(style) {
+					this._strokeStyle = style;
+					this.record('setStrokeStyle', [style]);
+				}
+			},
+		});
+	};
+	
+	Context.prototype._initMethods = function() {
+		// define methods to test here
+		// no way to introspect so we have to do some extra work :(
+		var methods = {
+			arc: function() {},
+			beginPath: function() {},
+			bezierCurveTo: function() {},
+			clearRect: function() {},
+			closePath: function() {},
+			fill: function() {},
+			fillRect: function() {},
+			fillText: function() {},
+			lineTo: function(x, y) {},
+			measureText: function(text) {
+				// return the number of characters * fixed size
+				return text ? { width: text.length * 10 } : {width: 0};
+			},
+			moveTo: function(x, y) {},
+			quadraticCurveTo: function() {},
+			restore: function() {},
+			rotate: function() {},
+			save: function() {},
+			setLineDash: function() {},
+			stroke: function() {},
+			translate: function() {},
+		};
+
+		// attach methods to the class itself
+		var scope = this;
+		var addMethod = function(name, method) {
+			scope[methodName] = function() {
+				scope.record(name, arguments);
+				return method.apply(scope, arguments);
+			};
+		}
+
+		for (var methodName in methods) {
+			var method = methods[methodName];
+
+			addMethod(methodName, method);
+		}
+	};
+
+	Context.prototype.record = function(methodName, args) {
+		this._calls.push({
+			name: methodName,
+			args: Array.prototype.slice.call(args)
+		});
+	},
+
+	Context.prototype.getCalls = function() {
+		return this._calls;
+	}
+
+	Context.prototype.resetCalls = function() {
+		this._calls = [];
+	};
+
+	window.createMockContext = function() {
+		return new Context();
+	};
+})();

test/scale.category.tests.js

@@ -0,0 +1,189 @@
+// Test the category scale
+
+describe('Category scale tests', function() {
+	it('Should register the constructor with the scale service', function() {
+		var Constructor = Chart.scaleService.getScaleConstructor('category');
+		expect(Constructor).not.toBe(undefined);
+		expect(typeof Constructor).toBe('function');
+	});
+
+	it('Should have the correct default config', function() {
+		var defaultConfig = Chart.scaleService.getScaleDefaults('category');
+		expect(defaultConfig).toEqual({
+			display: true,
+
+			gridLines: {
+				color: "rgba(0, 0, 0, 0.1)",
+				drawOnChartArea: true,
+				drawTicks: true, // draw ticks extending towards the label
+				lineWidth: 1,
+				offsetGridLines: false,
+				show: true,
+				zeroLineColor: "rgba(0,0,0,0.25)",
+				zeroLineWidth: 1,
+			},
+			position: "bottom",
+			scaleLabel: {
+				fontColor: '#666',
+				fontFamily: 'Helvetica Neue',
+				fontSize: 12,
+				fontStyle: 'normal',
+				labelString: '',
+				show: false,
+			},
+			ticks: {
+				beginAtZero: false,
+				fontColor: "#666",
+				fontFamily: "Helvetica Neue",
+				fontSize: 12,
+				fontStyle: "normal",
+				maxRotation: 90,
+				minRotation: 20,
+				mirror: false,
+				padding: 10,
+				reverse: false,
+				show: true,
+				template: "<%=value%>"
+			}
+		});
+	});
+
+	it('Should generate ticks from the data labales', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [{
+				yAxisID: scaleID,
+				data: [10, 5, 0, 25, 78]
+			}],
+			labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5']
+		};
+
+		var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('category'));
+		var Constructor = Chart.scaleService.getScaleConstructor('category');
+		var scale = new Constructor({
+			ctx: {},
+			options: config,
+			data: mockData,
+			id: scaleID
+		});
+
+		scale.buildTicks();
+		expect(scale.ticks).toEqual(mockData.labels);
+	});
+
+	it ('Should get the correct pixel for a value when horizontal', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [{
+				yAxisID: scaleID,
+				data: [10, 5, 0, 25, 78]
+			}],
+			labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick_last']
+		};
+
+		var mockContext = window.createMockContext();
+		var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('category'));
+		config.gridLines.offsetGridLines = true;
+		var Constructor = Chart.scaleService.getScaleConstructor('category');
+		var scale = new Constructor({
+			ctx: mockContext,
+			options: config,
+			data: mockData,
+			id: scaleID
+		});
+
+		var minSize = scale.update(200, 100);
+
+		expect(scale.width).toBe(200);
+		expect(scale.height).toBe(28);
+		expect(scale.paddingTop).toBe(0);
+		expect(scale.paddingBottom).toBe(0);
+		expect(scale.paddingLeft).toBe(28);
+		expect(scale.paddingRight).toBe(48);
+		expect(scale.labelRotation).toBe(0);
+
+		expect(minSize).toEqual({
+			width: 200,
+			height: 28,
+		});
+
+		scale.left = 5;
+		scale.top = 5;
+		scale.right = 205;
+		scale.bottom = 33;
+
+		expect(scale.getPixelForValue(0, 0, 0, false)).toBe(33);
+		expect(scale.getPixelForValue(0, 0, 0, true)).toBe(45);
+
+		expect(scale.getPixelForValue(0, 4, 0, false)).toBe(132);
+		expect(scale.getPixelForValue(0, 4, 0, true)).toBe(145);
+
+		config.gridLines.offsetGridLines = false;
+
+		expect(scale.getPixelForValue(0, 0, 0, false)).toBe(33);
+		expect(scale.getPixelForValue(0, 0, 0, true)).toBe(33);
+
+		expect(scale.getPixelForValue(0, 4, 0, false)).toBe(157);
+		expect(scale.getPixelForValue(0, 4, 0, true)).toBe(157);
+	});
+
+	it ('should get the correct pixel for a value when vertical', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [{
+				yAxisID: scaleID,
+				data: [10, 5, 0, 25, 78]
+			}],
+			labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick_last']
+		};
+
+		var mockContext = window.createMockContext();
+		var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('category'));
+		config.gridLines.offsetGridLines = true;
+		config.position = "left";
+		var Constructor = Chart.scaleService.getScaleConstructor('category');
+		var scale = new Constructor({
+			ctx: mockContext,
+			options: config,
+			data: mockData,
+			id: scaleID
+		});
+
+		var minSize = scale.update(100, 200);
+
+		expect(scale.width).toBe(100);
+		expect(scale.height).toBe(200);
+		expect(scale.paddingTop).toBe(6);
+		expect(scale.paddingBottom).toBe(6);
+		expect(scale.paddingLeft).toBe(0);
+		expect(scale.paddingRight).toBe(0);
+		expect(scale.labelRotation).toBe(0);
+
+		expect(minSize).toEqual({
+			width: 100,
+			height: 200,
+		});
+
+		scale.left = 5;
+		scale.top = 5;
+		scale.right = 105;
+		scale.bottom = 205;
+
+		expect(scale.getPixelForValue(0, 0, 0, false)).toBe(11);
+		expect(scale.getPixelForValue(0, 0, 0, true)).toBe(30);
+
+		expect(scale.getPixelForValue(0, 4, 0, false)).toBe(161);
+		expect(scale.getPixelForValue(0, 4, 0, true)).toBe(180);
+
+		config.gridLines.offsetGridLines = false;
+
+		expect(scale.getPixelForValue(0, 0, 0, false)).toBe(11);
+		expect(scale.getPixelForValue(0, 0, 0, true)).toBe(11);
+
+		expect(scale.getPixelForValue(0, 4, 0, false)).toBe(199);
+		expect(scale.getPixelForValue(0, 4, 0, true)).toBe(199);
+	});
+});

test/scale.logarithmic.tests.js

@@ -0,0 +1,379 @@
+describe('Logarithmic Scale tests', function() {
+
+	it('Should register the constructor with the scale service', function() {
+		var Constructor = Chart.scaleService.getScaleConstructor('logarithmic');
+		expect(Constructor).not.toBe(undefined);
+		expect(typeof Constructor).toBe('function');
+	});
+
+	it('Should have the correct default config', function() {
+		var defaultConfig = Chart.scaleService.getScaleDefaults('logarithmic');
+		expect(defaultConfig).toEqual({
+			display: true,
+			gridLines: {
+				color: "rgba(0, 0, 0, 0.1)",
+				drawOnChartArea: true,
+				drawTicks: true,
+				lineWidth: 1,
+				offsetGridLines: false,
+				show: true,
+				zeroLineColor: "rgba(0,0,0,0.25)",
+				zeroLineWidth: 1,
+			},
+			position: "left",
+			scaleLabel: {
+				fontColor: '#666',
+				fontFamily: 'Helvetica Neue',
+				fontSize: 12,
+				fontStyle: 'normal',
+				labelString: '',
+				show: false,
+			},
+			ticks: {
+				beginAtZero: false,
+				fontColor: "#666",
+				fontFamily: "Helvetica Neue",
+				fontSize: 12,
+				fontStyle: "normal",
+				maxRotation: 90,
+				minRotation: 20,
+				mirror: false,
+				padding: 10,
+				reverse: false,
+				show: true,
+				template: "<%var remain = value / (Math.pow(10, Math.floor(Chart.helpers.log10(value))));if (remain === 1 || remain === 2 || remain === 5) {%><%=value.toExponential()%><%} else {%><%= null %><%}%>",
+			},
+		});
+	});
+
+	it('Should correctly determine the max & min data values', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [{
+				yAxisID: scaleID,
+				data: [10, 5, 5000, 78, 450]
+			}, {
+				yAxisID: 'second scale',
+				data: [1, 1000, 10, 100],
+			}, {
+				yAxisID: scaleID,
+				data: [150]
+			}]
+		};
+
+		var mockContext = window.createMockContext();
+		var Constructor = Chart.scaleService.getScaleConstructor('logarithmic');
+		var scale = new Constructor({
+			ctx: mockContext,
+			options: Chart.scaleService.getScaleDefaults('logarithmic'), // use default config for scale
+			data: mockData,
+			id: scaleID
+		});
+
+		expect(scale).not.toEqual(undefined); // must construct
+		expect(scale.min).toBe(undefined); // not yet set
+		expect(scale.max).toBe(undefined);
+
+		scale.update(400, 400);
+		expect(scale.min).toBe(1);
+		expect(scale.max).toBe(10000);
+	});
+
+	it('Should correctly determine the max & min for scatter data', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [{
+				xAxisID: scaleID, // for the horizontal scale
+				yAxisID: scaleID,
+				data: [{
+					x: 10,
+					y: 100
+				}, {
+					x: 2,
+					y: 6
+				}, {
+					x: 65,
+					y: 121
+				}, {
+					x: 99,
+					y: 7
+				}]
+			}]
+		};
+
+		var mockContext = window.createMockContext();
+		var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('logarithmic'));
+		var Constructor = Chart.scaleService.getScaleConstructor('logarithmic');
+		var verticalScale = new Constructor({
+			ctx: mockContext,
+			options: config,
+			data: mockData,
+			id: scaleID
+		});
+
+		verticalScale.update(400, 400);
+		expect(verticalScale.min).toBe(1);
+		expect(verticalScale.max).toBe(1000);
+
+		var horizontalConfig = Chart.helpers.clone(config);
+		horizontalConfig.position = 'bottom';
+		var horizontalScale = new Constructor({
+			ctx: mockContext,
+			options: horizontalConfig,
+			data: mockData,
+			id: scaleID,
+		});
+
+		horizontalScale.update(400, 400);
+		expect(horizontalScale.min).toBe(1);
+		expect(horizontalScale.max).toBe(100);
+	});
+
+	it('Should correctly determine the min and max data values when stacked mode is turned on', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [{
+				yAxisID: scaleID,
+				data: [10, 5, 1, 5, 78, 100]
+			}, {
+				yAxisID: 'second scale',
+				data: [-1000, 1000],
+			}, {
+				yAxisID: scaleID,
+				data: [150, 10, 10, 100, 10, 9]
+			}]
+		};
+
+		var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('logarithmic'));
+		config.stacked = true; // enable scale stacked mode
+
+		var mockContext = window.createMockContext();
+		var Constructor = Chart.scaleService.getScaleConstructor('logarithmic');
+		var scale = new Constructor({
+			ctx: mockContext,
+			options: config,
+			data: mockData,
+			id: scaleID
+		});
+
+		scale.update(400, 400);
+		expect(scale.min).toBe(10);
+		expect(scale.max).toBe(1000);
+	});
+
+	it('Should ensure that the scale has a max and min that are not equal', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: []
+		};
+
+		var mockContext = window.createMockContext();
+		var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('logarithmic'));
+		var Constructor = Chart.scaleService.getScaleConstructor('logarithmic');
+		var scale = new Constructor({
+			ctx: mockContext,
+			options: config,
+			data: mockData,
+			id: scaleID
+		});
+
+		scale.update(400, 00);
+		expect(scale.min).toBe(1);
+		expect(scale.max).toBe(10);
+
+		mockData.datasets = [{
+			yAxisID: scaleID,
+			data: [0.15, 0.15]
+		}];
+
+		scale.update(400, 400);
+		expect(scale.min).toBe(0.01);
+		expect(scale.max).toBe(1);
+	});
+
+	it('Should generate tick marks', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [{
+				yAxisID: scaleID,
+				data: [10, 5, 1, 25, 78]
+			}, ]
+		};
+
+		var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('logarithmic'));
+		var Constructor = Chart.scaleService.getScaleConstructor('logarithmic');
+		var scale = new Constructor({
+			ctx: {},
+			options: config,
+			data: mockData,
+			id: scaleID
+		});
+
+		// Set arbitrary width and height for now
+		scale.width = 50;
+		scale.height = 400;
+
+		scale.buildTicks();
+
+		// Counts down because the lines are drawn top to bottom
+		expect(scale.ticks).toEqual([100, 90, 80, 70, 60, 50, 40, 30, 20, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1]);
+		expect(scale.start).toBe(1);
+		expect(scale.end).toBe(100);
+	});
+
+	it('Should generate tick marks in the correct order in reversed mode', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [{
+				yAxisID: scaleID,
+				data: [10, 5, 1, 25, 78]
+			}, ]
+		};
+
+		var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('logarithmic'));
+		config.ticks.reverse = true;
+
+		var Constructor = Chart.scaleService.getScaleConstructor('logarithmic');
+		var scale = new Constructor({
+			ctx: {},
+			options: config,
+			data: mockData,
+			id: scaleID
+		});
+
+		// Set arbitrary width and height for now
+		scale.width = 50;
+		scale.height = 400;
+
+		scale.buildTicks();
+
+		// Counts down because the lines are drawn top to bottom
+		expect(scale.ticks).toEqual([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100]);
+		expect(scale.start).toBe(100);
+		expect(scale.end).toBe(1);
+	});
+
+	it('Should build labels using the default template', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [{
+				yAxisID: scaleID,
+				data: [10, 5, 1, 25, 78]
+			}, ]
+		};
+
+		var mockContext = window.createMockContext();
+		var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('logarithmic'));
+		var Constructor = Chart.scaleService.getScaleConstructor('logarithmic');
+		var scale = new Constructor({
+			ctx: mockContext,
+			options: config,
+			data: mockData,
+			id: scaleID
+		});
+
+		scale.update(400, 400);
+
+		expect(scale.ticks).toEqual(['1e+2', '', '', '', '', '5e+1', '', '', '2e+1', '1e+1', '', '', '', '', '5e+0', '', '', '2e+0', '1e+0']);
+	});
+
+	it('Should build labels using the user supplied callback', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [{
+				yAxisID: scaleID,
+				data: [10, 5, 1, 25, 78]
+			}, ]
+		};
+
+		var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('logarithmic'));
+		config.ticks.userCallback = function(value, index) {
+			return index.toString();
+		};
+
+		var mockContext = window.createMockContext();
+		var Constructor = Chart.scaleService.getScaleConstructor('logarithmic');
+		var scale = new Constructor({
+			ctx: mockContext,
+			options: config,
+			data: mockData,
+			id: scaleID
+		});
+
+		scale.update(400, 400);
+
+		// Just the index
+		expect(scale.ticks).toEqual(['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18']);
+	});
+
+	it('Should get the correct pixel value for a point', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [{
+				xAxisID: scaleID, // for the horizontal scale
+				yAxisID: scaleID,
+				data: [10, 5, 1, 25, 78]
+			}]
+		};
+
+		var mockContext = window.createMockContext();
+		var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('logarithmic'));
+		var Constructor = Chart.scaleService.getScaleConstructor('logarithmic');
+		var verticalScale = new Constructor({
+			ctx: mockContext,
+			options: config,
+			data: mockData,
+			id: scaleID
+		});
+
+		verticalScale.update(50, 100);
+
+		// Fake out positioning of the scale service
+		verticalScale.left = 0;
+		verticalScale.top = 0;
+		verticalScale.right = 50;
+		verticalScale.bottom = 110;
+		verticalScale.paddingTop = 5;
+		verticalScale.paddingBottom = 5;
+		verticalScale.width = 50;
+		verticalScale.height = 110;
+
+		expect(verticalScale.getPixelForValue(100, 0, 0)).toBe(5); // top + paddingTop
+		expect(verticalScale.getPixelForValue(1, 0, 0)).toBe(105); // bottom - paddingBottom
+		expect(verticalScale.getPixelForValue(10, 0, 0)).toBe(55); // halfway
+
+		var horizontalConfig = Chart.helpers.clone(config);
+		horizontalConfig.position = 'bottom';
+		var horizontalScale = new Constructor({
+			ctx: mockContext,
+			options: horizontalConfig,
+			data: mockData,
+			id: scaleID,
+		});
+
+		horizontalScale.update(100, 50);
+
+		// Fake out positioning of the scale service
+		horizontalScale.left = 0;
+		horizontalScale.top = 0;
+		horizontalScale.right = 110;
+		horizontalScale.bottom = 50;
+		horizontalScale.paddingLeft = 5;
+		horizontalScale.paddingRight = 5;
+		horizontalScale.width = 110;
+		horizontalScale.height = 50;
+
+		expect(horizontalScale.getPixelForValue(100, 0, 0)).toBe(105); // right - paddingRight
+		expect(horizontalScale.getPixelForValue(1, 0, 0)).toBe(5); // left + paddingLeft
+		expect(horizontalScale.getPixelForValue(10, 0, 0)).toBe(55); // halfway
+	});
+});

test/scale.radialLinear.tests.js

@@ -0,0 +1,773 @@
+// Tests for the radial linear scale used by the polar area and radar charts
+describe('Test the radial linear scale', function() {
+	it('Should register the constructor with the scale service', function() {
+		var Constructor = Chart.scaleService.getScaleConstructor('radialLinear');
+		expect(Constructor).not.toBe(undefined);
+		expect(typeof Constructor).toBe('function');
+	});
+
+	it('Should have the correct default config', function() {
+		var defaultConfig = Chart.scaleService.getScaleDefaults('radialLinear');
+		expect(defaultConfig).toEqual({
+			angleLines: {
+				show: true,
+				color: "rgba(0, 0, 0, 0.1)",
+				lineWidth: 1
+			},
+			animate: true,
+			display: true,
+			gridLines: {
+				color: "rgba(0, 0, 0, 0.1)",
+				drawOnChartArea: true,
+				drawTicks: true,
+				lineWidth: 1,
+				offsetGridLines: false,
+				show: true,
+				zeroLineColor: "rgba(0,0,0,0.25)",
+				zeroLineWidth: 1,
+			},
+			lineArc: false,
+			pointLabels: {
+				fontColor: "#666",
+				fontFamily: "'Arial'",
+				fontSize: 10,
+				fontStyle: "normal",
+			},
+			position: "chartArea",
+			scaleLabel: {
+				fontColor: '#666',
+				fontFamily: 'Helvetica Neue',
+				fontSize: 12,
+				fontStyle: 'normal',
+				labelString: '',
+				show: false,
+			},
+			ticks: {
+				backdropColor: "rgba(255,255,255,0.75)",
+				backdropPaddingY: 2,
+				backdropPaddingX: 2,
+				beginAtZero: false,
+				fontColor: "#666",
+				fontFamily: "Helvetica Neue",
+				fontSize: 12,
+				fontStyle: "normal",
+				maxRotation: 90,
+				minRotation: 20,
+				mirror: false,
+				padding: 10,
+				reverse: false,
+				showLabelBackdrop: true,
+				show: true,
+				template: "<%=value%>",
+
+			},
+		});
+	});
+
+	it('Should correctly determine the max & min data values', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [{
+				yAxisID: scaleID,
+				data: [10, 5, 0, -5, 78, -100]
+			}, {
+				yAxisID: scaleID,
+				data: [150]
+			}],
+			labels: ['lablel1', 'label2', 'label3', 'label4', 'label5', 'label6']
+		};
+
+		var mockContext = window.createMockContext();
+		var Constructor = Chart.scaleService.getScaleConstructor('radialLinear');
+		var scale = new Constructor({
+			ctx: mockContext,
+			options: Chart.scaleService.getScaleDefaults('radialLinear'), // use default config for scale
+			data: mockData,
+			id: scaleID,
+		});
+
+		scale.update(200, 300);
+		expect(scale.min).toBe(-100);
+		expect(scale.max).toBe(200);
+	});
+
+	it('Should ensure that the scale has a max and min that are not equal', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [],
+			labels: []
+		};
+
+		var mockContext = window.createMockContext();
+		var Constructor = Chart.scaleService.getScaleConstructor('radialLinear');
+		var scale = new Constructor({
+			ctx: mockContext,
+			options: Chart.scaleService.getScaleDefaults('radialLinear'), // use default config for scale
+			data: mockData,
+			id: scaleID,
+		});
+
+		scale.update(200, 300);
+		expect(scale.min).toBe(-1);
+		expect(scale.max).toBe(1);
+	});
+
+	it('should forcibly include 0 in the range if the beginAtZero option is used', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [{
+				yAxisID: scaleID,
+				data: [20, 30, 40, 50]
+			}],
+			labels: [],
+		};
+
+		var mockContext = window.createMockContext();
+		var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('radialLinear'));
+		var Constructor = Chart.scaleService.getScaleConstructor('radialLinear');
+		var scale = new Constructor({
+			ctx: mockContext,
+			options: config,
+			data: mockData,
+			id: scaleID,
+		});
+
+		config.ticks.beginAtZero = false;
+		scale.update(400, 400);
+		expect(scale.ticks).toEqual(['20', '25', '30', '35', '40', '45', '50']);
+
+		config.ticks.beginAtZero = true;
+		scale.update(400, 400);
+		expect(scale.ticks).toEqual(['0', '5', '10', '15', '20', '25', '30', '35', '40', '45', '50']);
+
+		mockData.datasets[0].data = [-20, -30, -40, -50];
+		scale.update(400, 400);
+		expect(scale.ticks).toEqual(['-50', '-45', '-40', '-35', '-30', '-25', '-20', '-15', '-10', '-5', '0']);
+
+		config.ticks.beginAtZero = false;
+		scale.update(400, 400);
+		expect(scale.ticks).toEqual(['-50', '-45', '-40', '-35', '-30', '-25', '-20']);
+	});
+
+	it('Should generate tick marks in the correct order in reversed mode', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [{
+				yAxisID: scaleID,
+				data: [10, 5, 0, 25, 78]
+			}],
+			labels: []
+		};
+
+		var mockContext = window.createMockContext();
+		var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('radialLinear'));
+		config.ticks.reverse = true;
+		var Constructor = Chart.scaleService.getScaleConstructor('radialLinear');
+		var scale = new Constructor({
+			ctx: mockContext,
+			options: config,
+			data: mockData,
+			id: scaleID,
+		});
+
+		scale.update(200, 300);
+
+		// Reverse mode makes this count up
+		expect(scale.ticks).toEqual(['80', '60', '40', '20', '0']);
+		expect(scale.start).toBe(80);
+		expect(scale.end).toBe(0);
+	});
+
+	it('Should build labels using the user supplied callback', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [{
+				yAxisID: scaleID,
+				data: [10, 5, 0, 25, 78]
+			}],
+			labels: []
+		};
+
+		var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('radialLinear'));
+		config.ticks.userCallback = function(value, index) {
+			return index.toString();
+		};
+
+		var mockContext = window.createMockContext();
+		var Constructor = Chart.scaleService.getScaleConstructor('radialLinear');
+		var scale = new Constructor({
+			ctx: mockContext,
+			options: config,
+			data: mockData,
+			id: scaleID,
+		});
+
+		scale.update(200, 300);
+
+		// Just the index
+		expect(scale.ticks).toEqual(['0', '1', '2', '3', '4']);
+	});
+
+	it('should correctly set the center point', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [{
+				yAxisID: scaleID,
+				data: [10, 5, 0, 25, 78]
+			}],
+			labels: ['point1', 'point2', 'point3', 'point4', 'point5'] // used in radar charts which use the same scales
+		};
+
+		var mockContext = window.createMockContext();
+		var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('radialLinear'));
+		var Constructor = Chart.scaleService.getScaleConstructor('radialLinear');
+		var scale = new Constructor({
+			ctx: mockContext,
+			options: config,
+			data: mockData,
+			id: scaleID,
+		});
+
+		scale.left = 10;
+		scale.right = 210;
+		scale.top = 5;
+		scale.bottom = 305;
+		scale.update(200, 300);
+
+		expect(scale.drawingArea).toBe(36);
+		expect(scale.xCenter).toBe(110);
+		expect(scale.yCenter).toBe(155);
+	});
+
+	it('should get the correct distance from the center point', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [{
+				yAxisID: scaleID,
+				data: [10, 5, 0, 25, 78]
+			}],
+			labels: ['point1', 'point2', 'point3', 'point4', 'point5'] // used in radar charts which use the same scales
+		};
+
+		var mockContext = window.createMockContext();
+		var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('radialLinear'));
+		var Constructor = Chart.scaleService.getScaleConstructor('radialLinear');
+		var scale = new Constructor({
+			ctx: mockContext,
+			options: config,
+			data: mockData,
+			id: scaleID,
+		});
+
+		scale.left = 0;
+		scale.right = 200;
+		scale.top = 0;
+		scale.bottom = 300;
+		scale.update(200, 300);
+
+		expect(scale.getDistanceFromCenterForValue(scale.min)).toBe(0);
+		expect(scale.getDistanceFromCenterForValue(scale.max)).toBe(36);
+		expect(scale.getPointPositionForValue(1, 5)).toEqual({
+			x: 102.13987716166409,
+			y: 149.30471176265638,
+		});
+
+		config.reverse = true;
+
+		scale.update(200, 300);
+
+		expect(scale.getDistanceFromCenterForValue(scale.min)).toBe(36);
+		expect(scale.getDistanceFromCenterForValue(scale.max)).toBe(0);
+	});
+
+	it('should draw correctly when there are no point labels', function() {
+		var scaleID = 'myScale';
+
+		var mockData = {
+			datasets: [{
+				yAxisID: scaleID,
+				data: [10, 5, 0, 25, 78]
+			}, ],
+			labels: ['point1', 'point2', 'point3', 'point4', 'point5'] // used in radar charts which use the same scales
+		};
+
+		var mockContext = window.createMockContext();
+		var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('radialLinear'));
+		config.lineArc = true;
+		var Constructor = Chart.scaleService.getScaleConstructor('radialLinear');
+		var scale = new Constructor({
+			ctx: mockContext,
+			options: config,
+			data: mockData,
+			id: scaleID,
+		});
+
+		scale.left = 0;
+		scale.right = 200;
+		scale.top = 0;
+		scale.bottom = 300;
+		scale.update(200, 300);
+
+		scale.draw();
+
+		var expected = [{
+			"name": "measureText",
+			"args": ["0"]
+		}, {
+			"name": "measureText",
+			"args": ["80"]
+		}, {
+			"name": "measureText",
+			"args": ["point1"]
+		}, {
+			"name": "measureText",
+			"args": ["point2"]
+		}, {
+			"name": "measureText",
+			"args": ["point3"]
+		}, {
+			"name": "measureText",
+			"args": ["point4"]
+		}, {
+			"name": "measureText",
+			"args": ["point5"]
+		}, {
+			"name": "setStrokeStyle",
+			"args": ["rgba(0, 0, 0, 0.1)"]
+		}, {
+			"name": "setLineWidth",
+			"args": [1]
+		}, {
+			"name": "beginPath",
+			"args": []
+		}, {
+			"name": "arc",
+			"args": [100, 150, 9, 0, 6.283185307179586]
+		}, {
+			"name": "closePath",
+			"args": []
+		}, {
+			"name": "stroke",
+			"args": []
+		}, {
+			"name": "measureText",
+			"args": ["20"]
+		}, {
+			"name": "setFillStyle",
+			"args": ["rgba(255,255,255,0.75)"]
+		}, {
+			"name": "fillRect",
+			"args": [88, 133, 24, 16]
+		}, {
+			"name": "setFillStyle",
+			"args": ["#666"]
+		}, {
+			"name": "fillText",
+			"args": ["20", 100, 141]
+		}, {
+			"name": "setStrokeStyle",
+			"args": ["rgba(0, 0, 0, 0.1)"]
+		}, {
+			"name": "setLineWidth",
+			"args": [1]
+		}, {
+			"name": "beginPath",
+			"args": []
+		}, {
+			"name": "arc",
+			"args": [100, 150, 18, 0, 6.283185307179586]
+		}, {
+			"name": "closePath",
+			"args": []
+		}, {
+			"name": "stroke",
+			"args": []
+		}, {
+			"name": "measureText",
+			"args": ["40"]
+		}, {
+			"name": "setFillStyle",
+			"args": ["rgba(255,255,255,0.75)"]
+		}, {
+			"name": "fillRect",
+			"args": [88, 124, 24, 16]
+		}, {
+			"name": "setFillStyle",
+			"args": ["#666"]
+		}, {
+			"name": "fillText",
+			"args": ["40", 100, 132]
+		}, {
+			"name": "setStrokeStyle",
+			"args": ["rgba(0, 0, 0, 0.1)"]
+		}, {
+			"name": "setLineWidth",
+			"args": [1]
+		}, {
+			"name": "beginPath",
+			"args": []
+		}, {
+			"name": "arc",
+			"args": [100, 150, 27, 0, 6.283185307179586]
+		}, {
+			"name": "closePath",
+			"args": []
+		}, {
+			"name": "stroke",
+			"args": []
+		}, {
+			"name": "measureText",
+			"args": ["60"]
+		}, {
+			"name": "setFillStyle",
+			"args": ["rgba(255,255,255,0.75)"]
+		}, {
+			"name": "fillRect",
+			"args": [88, 115, 24, 16]
+		}, {
+			"name": "setFillStyle",
+			"args": ["#666"]
+		}, {
+			"name": "fillText",
+			"args": ["60", 100, 123]
+		}, {
+			"name": "setStrokeStyle",
+			"args": ["rgba(0, 0, 0, 0.1)"]
+		}, {
+			"name": "setLineWidth",
+			"args": [1]
+		}, {
+			"name": "beginPath",
+			"args": []
+		}, {
+			"name": "arc",
+			"args": [100, 150, 36, 0, 6.283185307179586]
+		}, {
+			"name": "closePath",
+			"args": []
+		}, {
+			"name": "stroke",
+			"args": []
+		}, {
+			"name": "measureText",
+			"args": ["80"]
+		}, {
+			"name": "setFillStyle",
+			"args": ["rgba(255,255,255,0.75)"]
+		}, {
+			"name": "fillRect",
+			"args": [88, 106, 24, 16]
+		}, {
+			"name": "setFillStyle",
+			"args": ["#666"]
+		}, {
+			"name": "fillText",
+			"args": ["80", 100, 114]
+		}];
+		expect(mockContext.getCalls()).toEqual(expected);
+
+		mockContext.resetCalls();
+		config.lineArc = false;
+		scale.draw();
+
+		expect(mockContext.getCalls()).toEqual([{
+			"name": "setStrokeStyle",
+			"args": ["rgba(0, 0, 0, 0.1)"]
+		}, {
+			"name": "setLineWidth",
+			"args": [1]
+		}, {
+			"name": "beginPath",
+			"args": []
+		}, {
+			"name": "moveTo",
+			"args": [100, 141]
+		}, {
+			"name": "lineTo",
+			"args": [108.55950864665638, 147.21884705062547]
+		}, {
+			"name": "lineTo",
+			"args": [105.29006727063226, 157.28115294937453]
+		}, {
+			"name": "lineTo",
+			"args": [94.70993272936774, 157.28115294937453]
+		}, {
+			"name": "lineTo",
+			"args": [91.44049135334362, 147.21884705062547]
+		}, {
+			"name": "closePath",
+			"args": []
+		}, {
+			"name": "stroke",
+			"args": []
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