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798 lines
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798 lines
25 KiB
<!DOCTYPE html>
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<title>graph3d - vis.js - A dynamic, browser based visualization library.</title>
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<a href="https://github.com/almende/vis" class="hidden-xs hidden-sm hidden-md"><img style="position: absolute; top: 0; right: 0; border: 0;" src="https://camo.githubusercontent.com/38ef81f8aca64bb9a64448d0d70f1308ef5341ab/68747470733a2f2f73332e616d617a6f6e6177732e636f6d2f6769746875622f726962626f6e732f666f726b6d655f72696768745f6461726b626c75655f3132313632312e706e67" alt="Fork me on GitHub" data-canonical-src="https://s3.amazonaws.com/github/ribbons/forkme_right_darkblue_121621.png"></a>
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<div class="container full">
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<h1>Graph3d</h1>
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<h2 id="Overview">Overview</h2>
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<p>
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Graph3d is an interactive visualization chart to draw data in a three dimensional
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graph. You can freely move and zoom in the graph by dragging and scrolling in the
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window. Graph3d also supports animation of a graph.
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</p>
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<p>
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Graph3d uses <a href="https://developer.mozilla.org/en-US/docs/Web/HTML/Canvas">HTML canvas</a>
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to render graphs, and can render up to a few thousands of data points smoothly.
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</p>
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<h2 id="Contents">Contents</h2>
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<ul>
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<li><a href="#Overview">Overview</a></li>
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<li><a href="#Loading">Loading</a></li>
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<li><a href="#Data_Format">Data Format</a></li>
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<li><a href="#Configuration_Options">Configuration Options</a></li>
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<li><a href="#Methods">Methods</a></li>
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<li><a href="#Events">Events</a></li>
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<li><a href="#Data_Policy">Data Policy</a></li>
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</ul>
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<h2 id="Example">Example</h2>
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<p>
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The following code shows how to create a Graph3d and provide it with data.
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More examples can be found in the <a href="../examples">examples</a> directory.
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</p>
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<pre class="prettyprint lang-html">
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<!DOCTYPE HTML>
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<html>
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<head>
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<title>Graph 3D demo</title>
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<style>
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body {font: 10pt arial;}
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</style>
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<script type="text/javascript" src="../../dist/vis.js"></script>
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<script type="text/javascript">
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var data = null;
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var graph = null;
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function custom(x, y) {
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return (Math.sin(x/50) * Math.cos(y/50) * 50 + 50);
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}
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// Called when the Visualization API is loaded.
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function drawVisualization() {
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// Create and populate a data table.
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var data = new vis.DataSet();
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// create some nice looking data with sin/cos
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var steps = 50; // number of datapoints will be steps*steps
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var axisMax = 314;
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var axisStep = axisMax / steps;
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for (var x = 0; x < axisMax; x+=axisStep) {
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for (var y = 0; y < axisMax; y+=axisStep) {
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var value = custom(x, y);
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data.add({
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x: x,
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y: y,
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z: value,
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style: value
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});
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}
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}
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// specify options
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var options = {
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width: '600px',
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height: '600px',
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style: 'surface',
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showPerspective: true,
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showGrid: true,
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showShadow: false,
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keepAspectRatio: true,
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verticalRatio: 0.5
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};
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// create a graph3d
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var container = document.getElementById('mygraph');
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graph3d = new vis.Graph3d(container, data, options);
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}
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</script>
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</head>
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<body onload="drawVisualization();">
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<div id="mygraph"></div>
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</body>
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</html>
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</pre>
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<h2 id="Loading">Loading</h2>
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<p>
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The class name of the Graph3d is <code>vis.Graph3d</code>.
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When constructing a Graph3d, an HTML DOM container must be provided to attach
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the graph to. Optionally, data an options can be provided.
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Data is a vis <code>DataSet</code> or an <code>Array</code>, described in
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section <a href="#Data_Format">Data Format</a>.
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Options is a name-value map in the JSON format. The available options
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are described in section <a href="#Configuration_Options">Configuration Options</a>.
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</p>
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<pre class="prettyprint lang-js">var graph = new vis.Graph3d(container [, data] [, options]);</pre>
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<p>
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Data and options can be set or changed later on using the functions
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<code>Graph3d.setData(data)</code> and <code>Graph3d.setOptions(options)</code>.
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</p>
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<h2 id="Data_Format">Data Format</h2>
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<p>
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Graph3d can load data from an <code>Array</code>, a <code>DataSet</code> (offering 2 way data binding), or a <code>DataView</code> (offering 1 way data binding).
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JSON objects are added to this DataSet by using the <code>add()</code> function.
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Data points must have properties <code>x</code>, <code>y</code>, and <code>z</code>,
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and can optionally have a property <code>style</code> and <code>filter</code>.
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<h3>Definition</h3>
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<p>
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The DataSet JSON objects are defined as:
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</p>
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<table class="properties">
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<tr>
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<th>Name</th>
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<th>Type</th>
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<th>Required</th>
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<th>Description</th>
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</tr>
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<tr>
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<td>x</td>
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<td>number</td>
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<td>yes</td>
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<td>Location on the x-axis.</td>
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</tr>
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<tr>
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<td>y</td>
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<td>number</td>
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<td>yes</td>
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<td>Location on the y-axis.</td>
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</tr>
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<tr>
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<td>z</td>
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<td>number</td>
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<td>yes</td>
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<td>Location on the z-axis.</td>
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</tr>
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<tr>
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<td>style</td>
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<td>number</td>
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<td>no</td>
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<td>The data value, required for graph styles <code>dot-color</code> and
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<code>dot-size</code>.
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</td>
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</tr>
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<tr>
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<td>filter</td>
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<td>*</td>
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<td>no</td>
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<td>Filter values used for the animation.
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This column may have any type, such as a number, string, or Date.</td>
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</tr>
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</table>
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<h2 id="Configuration_Options">Configuration Options</h2>
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<p>
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Options can be used to customize the graph. Options are defined as a JSON object.
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All options are optional.
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</p>
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<pre class="prettyprint lang-js">
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var options = {
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width: '100%',
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height: '400px',
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style: 'surface'
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};
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</pre>
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<p>
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The following options are available.
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</p>
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<table class="options">
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<tr>
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<th>Name</th>
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<th>Type</th>
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<th>Default</th>
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<th>Description</th>
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</tr>
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<tr>
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<td>animationInterval</td>
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<td>number</td>
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<td>1000</td>
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<td>The animation interval in milliseconds. This determines how fast
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the animation runs.</td>
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</tr>
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<tr>
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<td>animationPreload</td>
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<td>boolean</td>
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<td>false</td>
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<td>If false, the animation frames are loaded as soon as they are requested.
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if <code>animationPreload</code> is true, the graph will automatically load
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all frames in the background, resulting in a smoother animation as soon as
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all frames are loaded. The load progress is shown on screen.</td>
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</tr>
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<tr>
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<td>animationAutoStart</td>
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<td>boolean</td>
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<td>false</td>
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<td>If true, the animation starts playing automatically after the graph
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is created.</td>
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</tr>
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<tr>
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<td>axisColor</td>
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<td>string</td>
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<td>'#4D4D4D'</td>
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<td>The color of the axis lines and the text along the axis.</td>
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</tr>
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<tr>
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<td>backgroundColor</td>
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<td>string or Object</td>
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<td>{fill: 'white', stroke: 'gray', strokeWidth: 1}</td>
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<td>The background color for the main area of the chart.
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Can be either a simple HTML color string, for example: 'red' or '#00cc00',
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or an object with the following properties.</td>
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</tr>
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<tr>
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<td>backgroundColor.fill</td>
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<td>string</td>
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<td>'white'</td>
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<td>The chart fill color, as an HTML color string.</td>
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</tr>
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<tr>
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<td>backgroundColor.stroke</td>
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<td>string</td>
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<td>'gray'</td>
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<td>The color of the chart border, as an HTML color string.</td>
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</tr>
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<tr>
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<td>backgroundColor.strokeWidth</td>
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<td>number</td>
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<td>1</td>
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<td>The border width, in pixels.</td>
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</tr>
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<tr>
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<td>cameraPosition</td>
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<td>Object</td>
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<td>{horizontal: 1.0, vertical: 0.5, distance: 1.7}</td>
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<td>Set the initial rotation and position of the camera.
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The object <code>cameraPosition</code> contains three parameters:
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<code>horizontal</code>, <code>vertical</code>, and <code>distance</code>.
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Parameter <code>horizontal</code> is a value in radians and can have any
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value (but normally in the range of 0 and 2*Pi).
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Parameter <code>vertical</code> is a value in radians between 0 and 0.5*Pi.
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Parameter <code>distance</code> is the (normalized) distance from the
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camera to the center of the graph, in the range of 0.71 to 5.0. A
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larger distance puts the graph further away, making it smaller.
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All parameters are optional.
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</tr>
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<tr>
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<td>dataColor</td>
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<td>string or object</td>
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<td>{fill: '#7DC1FF', stroke: '#3267D2', strokeWidth: 1}</td>
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<td>When <code>dataColor</code> is a string, it will set the color for both border and fill color of dots and bars. Applicable for styles <code>dot-size</code>, <code>bar-size</code>, and <code>line</code>. When an object, it can contain the properties descibed below.</td>
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</tr>
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<tr>
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<td>dataColor.fill</td>
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<td>string</td>
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<td>'#7DC1FF'</td>
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<td>The border color of the dots or bars. Applicable when using styles <code>dot-size</code> or <code>bar-size</code>.</td>
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</tr>
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<tr>
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<td>dataColor.stroke</td>
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<td>string</td>
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<td>'#3267D2'</td>
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<td>The fill color of the dots or bars. Applicable when using styles <code>dot-size</code>, <code>bar-size</code>, or <code>line</code>.</td>
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</tr>
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<tr>
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<td>dataColor.strokeWidth</td>
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<td>number</td>
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<td>1</td>
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<td>The line width of dots, bars and lines. Applicable for all styles.</td>
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</tr>
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<tr>
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<td>dotSizeRatio</td>
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<td>number</td>
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<td>0.02</td>
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<td>Ratio of the size of the dots with respect to the width of the graph.</td>
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</tr>
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<tr>
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<td>gridColor</td>
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<td>string</td>
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<td>'#D3D3D3'</td>
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<td>The color of the grid lines.</td>
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</tr>
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|
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<tr>
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<td>height</td>
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<td>string</td>
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<td>'400px'</td>
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<td>The height of the graph in pixels or as a percentage.</td>
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</tr>
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|
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<tr>
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<td>keepAspectRatio</td>
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<td>boolean</td>
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<td>true</td>
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<td>If <code>keepAspectRatio</code> is true, the x-axis and the y-axis
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keep their aspect ratio. If false, the axes are scaled such that they
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both have the same, maximum with.</td>
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</tr>
|
|
|
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<tr>
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<td>showAnimationControls</td>
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<td>boolean</td>
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<td>true</td>
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<td>If true, animation controls are created at the bottom of the Graph.
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The animation controls consists of buttons previous, start/stop, next,
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and a slider showing the current frame.
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Only applicable when the provided data contains an animation.</td>
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</tr>
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<tr>
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<td>showGrid</td>
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<td>boolean</td>
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<td>true</td>
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<td>If true, grid lines are draw in the x-y surface (the bottom of the 3d
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graph).</td>
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</tr>
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<tr>
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<td>showPerspective</td>
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<td>boolean</td>
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<td>true</td>
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<td>If true, the graph is drawn in perspective: points and lines which
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are further away are drawn smaller.
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Note that the graph currently does not support a gray colored bottom side
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when drawn in perspective.
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</td>
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</tr>
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<tr>
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<td>showShadow</td>
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<td>boolean</td>
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<td>false</td>
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<td>Show shadow on the graph.</td>
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</tr>
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<tr>
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<td>style</td>
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<td>string</td>
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<td>'dot'</td>
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<td>The style of the 3d graph. Available styles:
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<code>bar</code>,
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<code>bar-color</code>,
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<code>bar-size</code>,
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<code>dot</code>,
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<code>dot-line</code>,
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<code>dot-color</code>,
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<code>dot-size</code>,
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<code>line</code>,
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<code>grid</code>,
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or <code>surface</code></td>
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</tr>
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|
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<tr>
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<td>tooltip</td>
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<td>boolean | function</td>
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<td>false</td>
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<td>Show a tooltip showing the values of the hovered data point.
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The contents of the tooltip can be customized by providing a callback
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function as <code>tooltip</code>. In this case the function is called
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with an object containing parameters <code>x</code>,
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<code>y</code>, and <code>z</code> argument,
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and must return a string which may contain HTML.
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</td>
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</tr>
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<tr>
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<td>valueMax</td>
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<td>number</td>
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<td>none</td>
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<td>The maximum value for the value-axis. Only available in combination
|
|
with the styles <code>dot-color</code> and <code>dot-size</code>.</td>
|
|
</tr>
|
|
<tr>
|
|
<td>valueMin</td>
|
|
<td>number</td>
|
|
<td>none</td>
|
|
<td>The minimum value for the value-axis. Only available in combination
|
|
with the styles <code>dot-color</code> and <code>dot-size</code>.</td>
|
|
</tr>
|
|
<tr>
|
|
<td>verticalRatio</td>
|
|
<td>number</td>
|
|
<td>0.5</td>
|
|
<td>A value between 0.1 and 1.0. This scales the vertical size of the graph
|
|
When keepAspectRatio is set to false, and verticalRatio is set to 1.0,
|
|
the graph will be a cube.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>width</td>
|
|
<td>string</td>
|
|
<td>'400px'</td>
|
|
<td>The width of the graph in pixels or as a percentage.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>xBarWidth</td>
|
|
<td>number</td>
|
|
<td>none</td>
|
|
<td>The width of bars in x direction. By default, the width is equal to the distance
|
|
between the data points, such that bars adjoin each other.
|
|
Only applicable for styles <code>'bar'</code> and <code>'bar-color'</code>.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>xCenter</td>
|
|
<td>string</td>
|
|
<td>'55%'</td>
|
|
<td>The horizontal center position of the graph, as a percentage or in
|
|
pixels.</td>
|
|
</tr>
|
|
<tr>
|
|
<td>xMax</td>
|
|
<td>number</td>
|
|
<td>none</td>
|
|
<td>The maximum value for the x-axis.</td>
|
|
</tr>
|
|
<tr>
|
|
<td>xMin</td>
|
|
<td>number</td>
|
|
<td>none</td>
|
|
<td>The minimum value for the x-axis.</td>
|
|
</tr>
|
|
<tr>
|
|
<td>xStep</td>
|
|
<td>number</td>
|
|
<td>none</td>
|
|
<td>Step size for the grid on the x-axis.</td>
|
|
</tr>
|
|
<tr>
|
|
<td>xValueLabel</td>
|
|
<td>function</td>
|
|
<td>none</td>
|
|
<td>A function for custom formatting of the labels along the x-axis,
|
|
for example <code>function (x) {return (x * 100) + '%'}</code>.
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>yBarWidth</td>
|
|
<td>number</td>
|
|
<td>none</td>
|
|
<td>The width of bars in y direction. By default, the width is equal to the distance
|
|
between the data points, such that bars adjoin each other.
|
|
Only applicable for styles <code>'bar'</code> and <code>'bar-color'</code>.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>yCenter</td>
|
|
<td>string</td>
|
|
<td>'45%'</td>
|
|
<td>The vertical center position of the graph, as a percentage or in
|
|
pixels.</td>
|
|
</tr>
|
|
<tr>
|
|
<td>yMax</td>
|
|
<td>number</td>
|
|
<td>none</td>
|
|
<td>The maximum value for the y-axis.</td>
|
|
</tr>
|
|
<tr>
|
|
<td>yMin</td>
|
|
<td>number</td>
|
|
<td>none</td>
|
|
<td>The minimum value for the y-axis.</td>
|
|
</tr>
|
|
<tr>
|
|
<td>yStep</td>
|
|
<td>number</td>
|
|
<td>none</td>
|
|
<td>Step size for the grid on the y-axis.</td>
|
|
</tr>
|
|
<tr>
|
|
<td>yValueLabel</td>
|
|
<td>function</td>
|
|
<td>none</td>
|
|
<td>A function for custom formatting of the labels along the y-axis,
|
|
for example <code>function (y) {return (y * 100) + '%'}</code>.
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>zMin</td>
|
|
<td>number</td>
|
|
<td>none</td>
|
|
<td>The minimum value for the z-axis.</td>
|
|
</tr>
|
|
<tr>
|
|
<td>zMax</td>
|
|
<td>number</td>
|
|
<td>none</td>
|
|
<td>The maximum value for the z-axis.</td>
|
|
</tr>
|
|
<tr>
|
|
<td>zStep</td>
|
|
<td>number</td>
|
|
<td>none</td>
|
|
<td>Step size for the grid on the z-axis.</td>
|
|
</tr>
|
|
<tr>
|
|
<td>zValueLabel</td>
|
|
<td>function</td>
|
|
<td>none</td>
|
|
<td>A function for custom formatting of the labels along the z-axis,
|
|
for example <code>function (z) {return (z * 100) + '%'}</code>.
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>xLabel</td>
|
|
<td>String</td>
|
|
<td>x</td>
|
|
<td>Label on the X axis.</td>
|
|
</tr>
|
|
<tr>
|
|
<td>yLabel</td>
|
|
<td>String</td>
|
|
<td>y</td>
|
|
<td>Label on the Y axis.</td>
|
|
</tr>
|
|
<tr>
|
|
<td>zLabel</td>
|
|
<td>String</td>
|
|
<td>z</td>
|
|
<td>Label on the Z axis.</td>
|
|
</tr>
|
|
<tr>
|
|
<td>filterLabel</td>
|
|
<td>String</td>
|
|
<td>time</td>
|
|
<td>Label for the filter column.</td>
|
|
</tr>
|
|
<tr>
|
|
<td>legendLabel</td>
|
|
<td>String</td>
|
|
<td>value</td>
|
|
<td>Label for the style description.</td>
|
|
</tr>
|
|
</table>
|
|
|
|
|
|
<h2 id="Methods">Methods</h2>
|
|
<p>
|
|
Graph3d supports the following methods.
|
|
</p>
|
|
|
|
<table class="methods">
|
|
<tr>
|
|
<th>Method</th>
|
|
<th>Return Type</th>
|
|
<th>Description</th>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>animationStart()</td>
|
|
<td>none</td>
|
|
<td>Start playing the animation.
|
|
Only applicable when animation data is available.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>animationStop()</td>
|
|
<td>none</td>
|
|
<td>Stop playing the animation.
|
|
Only applicable when animation data is available.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>getCameraPosition()</td>
|
|
<td>An object with parameters <code>horizontal</code>,
|
|
<code>vertical</code> and <code>distance</code></td>
|
|
<td>Returns an object with parameters <code>horizontal</code>,
|
|
<code>vertical</code> and <code>distance</code>,
|
|
which each one of them is a number, representing the rotation and position
|
|
of the camera.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>redraw()</td>
|
|
<td>none</td>
|
|
<td>Redraw the graph. Useful after the camera position is changed externally,
|
|
when data is changed, or when the layout of the webpage changed.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>setData(data)</td>
|
|
<td>none</td>
|
|
<td>Replace the data in the Graph3d.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>setOptions(options)</td>
|
|
<td>none</td>
|
|
<td>Update options of Graph3d.
|
|
The provided options will be merged with current options.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>setSize(width, height)</td>
|
|
<td>none</td>
|
|
<td>Parameters <code>width</code> and <code>height</code> are strings,
|
|
containing a new size for the graph. Size can be provided in pixels
|
|
or in percentages.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>setCameraPosition (pos)</td>
|
|
<td>{horizontal: 1.0, vertical: 0.5, distance: 1.7}</td>
|
|
<td>Set the rotation and position of the camera. Parameter <code>pos</code>
|
|
is an object which contains three parameters: <code>horizontal</code>,
|
|
<code>vertical</code>, and <code>distance</code>.
|
|
Parameter <code>horizontal</code> is a value in radians and can have any
|
|
value (but normally in the range of 0 and 2*Pi).
|
|
Parameter <code>vertical</code> is a value in radians between 0 and 0.5*Pi.
|
|
Parameter <code>distance</code> is the (normalized) distance from the
|
|
camera to the center of the graph, in the range of 0.71 to 5.0. A
|
|
larger distance puts the graph further away, making it smaller.
|
|
All parameters are optional.
|
|
</td>
|
|
</tr>
|
|
|
|
</table>
|
|
|
|
<h2 id="Events">Events</h2>
|
|
<p>
|
|
Graph3d fires events after the camera position has been changed.
|
|
The event can be catched by creating a listener.
|
|
Here an example on how to catch a <code>cameraPositionChange</code> event.
|
|
</p>
|
|
|
|
<pre class="prettyprint lang-js">
|
|
function onCameraPositionChange(event) {
|
|
alert('The camera position changed to:\n' +
|
|
'Horizontal: ' + event.horizontal + '\n' +
|
|
'Vertical: ' + event.vertical + '\n' +
|
|
'Distance: ' + event.distance);
|
|
}
|
|
// assuming var graph3d = new vis.Graph3d(document.getElementById('mygraph'));
|
|
graph3d.on('cameraPositionChange', onCameraPositionChange);
|
|
</pre>
|
|
|
|
<p>
|
|
The following events are available.
|
|
</p>
|
|
|
|
<table class="events">
|
|
<tr>
|
|
<th>name</th>
|
|
<th>Properties</th>
|
|
<th>Description</th>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>cameraPositionChange</td>
|
|
<td>
|
|
<ul>
|
|
<li><code>horizontal</code>: Number. The horizontal angle of the camera.</li>
|
|
<li><code>vertical</code>: Number. The vertical angle of the camera.</li>
|
|
<li><code>distance</code>: Number. The distance of the camera to the center of the graph.</li>
|
|
</ul>
|
|
</td>
|
|
<td>The camera position changed. Fired after the user modified the camera position
|
|
by moving (dragging) the graph, or by zooming (scrolling),
|
|
but not after a call to <code>setCameraPosition</code> method.
|
|
The new camera position can be retrieved by calling the method
|
|
<code>getCameraPosition</code>.</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<h2 id="Data_Policy">Data Policy</h2>
|
|
<p>
|
|
All code and data are processed and rendered in the browser. No data is sent to any server.
|
|
</p>
|
|
|
|
</div>
|
|
|
|
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|
|
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|
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