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487 lines
14 KiB
487 lines
14 KiB
<html>
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<head>
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<title>vis.js | timeline documentation</title>
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<link href='css/prettify.css' type='text/css' rel='stylesheet'>
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<link href='css/style.css' type='text/css' rel='stylesheet'>
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<script type="text/javascript" src="lib/prettify/prettify.js"></script>
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</head>
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<body onload="prettyPrint();">
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<div id="container">
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<h1>Timeline documentation</h1>
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<table>
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<tr>
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<td>Author</td>
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<td>Jos de Jong, <a href="http://www.almende.com" target="_blank">Almende B.V.</a></td>
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</tr>
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<tr>
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<td>Webpage</td>
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<td><a href="http://visjs.org" target="_blank">http://visjs.org</a></td>
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</tr>
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<tr>
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<td>License</td>
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<td> <a href="http://www.apache.org/licenses/LICENSE-2.0" target="_blank">Apache License, Version 2.0</a></td>
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</tr>
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</table>
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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="#Example">Example</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="#Styles">Styles</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="Overview">Overview</h2>
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<p>
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The Timeline is an interactive visualization chart to visualize data in time.
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The data items can take place on a single date, or have a start and end date (a range).
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You can freely move and zoom in the timeline by dragging and scrolling in the
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Timeline. Items can be created, edited, and deleted in the timeline.
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The time scale on the axis is adjusted automatically, and supports scales ranging
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from milliseconds to years.
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</p>
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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 Timeline 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"><!DOCTYPE HTML>
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<html>
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<head>
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<title>Timeline | Basic demo</title>
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<style type="text/css">
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body, html {
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font-family: sans-serif;
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}
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</style>
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<script src="../../vis.js"></script>
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</head>
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<body>
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<div id="visualization"></div>
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<script type="text/javascript">
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var container = document.getElementById('visualization');
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var items = [
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{id: 1, content: 'item 1', start: '2013-04-20'},
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{id: 2, content: 'item 2', start: '2013-04-14'},
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{id: 3, content: 'item 3', start: '2013-04-18'},
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{id: 4, content: 'item 4', start: '2013-04-16', end: '2013-04-19'},
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{id: 5, content: 'item 5', start: '2013-04-25'},
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{id: 6, content: 'item 6', start: '2013-04-27'}
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];
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var options = {};
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var timeline = new vis.Timeline(container, items, options);
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</script>
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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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Install or download the <a href="http://visjs.org" target="_blank">vis.js</a> library.
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in a subfolder of your project. Include the library script in the head of your html code:
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</p>
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<pre class="prettyprint lang-html">
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<script type="text/javascript" src="vis/vis.js"></script>
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</pre>
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The constructor of the Timeline is <code>vis.Timeline</code>
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<pre class="prettyprint lang-js">var timeline = new vis.Timeline(container, items, options);</pre>
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The constructor accepts three parameters:
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<ul>
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<li>
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<code>container</code> is the DOM element in which to create the graph.
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</li>
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<li>
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<code>items</code> is an Array containing items. The properties of an
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item are described in section <a href="#Data_Format">Data Format</a>.
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</li>
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<li>
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<code>options</code> is an optional Object containing a name-value map
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with options. Options can also be set using the method
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<code>setOptions</code>.
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</li>
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</ul>
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<h2 id="Data_Format">Data Format</h2>
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<p>
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The Timeline uses regular Arrays and Objects as data format.
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Data items can contain the properties <code>start</code>,
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<code>end</code> (optional), <code>content</code>,
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<code>group</code> (optional), and <code>className</code> (optional).
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</p>
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<p>
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A table is constructed as:
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</p>
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<pre class="prettyprint lang-js">
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var items = [
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{
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start: new Date(2010, 7, 15),
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end: new Date(2010, 8, 2), // end is optional
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content: 'Trajectory A'
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// Optional: a field 'group'
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// Optional: a field 'className'
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// Optional: a field 'editable'
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}
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// more items...
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]);
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</pre>
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<h3>Properties</h3>
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<p>
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The item properties are defined as:
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</p>
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<table>
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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>start</td>
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<td>Date</td>
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<td>yes</td>
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<td>The start date of the item, for example <code>new Date(2010,09,23)</code>.</td>
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</tr>
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<tr>
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<td>end</td>
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<td>Date</td>
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<td>no</td>
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<td>The end date of the item. The end date is optional, and can be left <code>null</code>.
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If end date is provided, the item is displayed as a range.
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If not, the item is displayed as a box.</td>
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</tr>
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<tr>
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<td>content</td>
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<td>String</td>
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<td>yes</td>
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<td>The contents of the item. This can be plain text or html code.</td>
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</tr>
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<tr>
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<td>group</td>
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<td>any type</td>
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<td>no</td>
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<td>This field is optional. When the group column is provided,
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all items with the same group are placed on one line.
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A vertical axis is displayed showing the groups.
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Grouping items can be useful for example when showing availability of multiple
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people, rooms, or other resources next to each other.<br>
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</td>
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</tr>
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<tr>
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<td>className</td>
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<td>String</td>
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<td>no</td>
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<td>This field is optional. A className can be used to give items
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and individual css style. For example, when an item has className
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'red', one can define a css style
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<code>
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.red {
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background-color: red;
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border-color: dark-red;
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}
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</code>.
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More details on how to style items can be found in the section
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<a href="#Styles">Styles</a>.
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</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 timeline.
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Options are defined as a JSON object. 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: '30px'
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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>
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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>align</td>
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<td>String</td>
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<td>"center"</td>
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<td>Alignment of items with style 'box'. Available values are
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'center' (default), 'left', or 'right').</td>
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</tr>
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<tr>
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<td>autoResize</td>
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<td>boolean</td>
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<td>false</td>
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<td>If true, the Timeline will automatically detect when its
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container is resized, and redraw itself accordingly.</td>
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</tr>
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<tr>
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<td>end</td>
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<td>Date</td>
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<td>none</td>
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<td>The initial end date for the axis of the timeline.
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If not provided, the latest date present in the items set is taken as
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end date.</td>
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</tr>
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<tr>
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<td>height</td>
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<td>String</td>
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<td>none</td>
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<td>The height of the timeline in pixels or as a percentage.
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When height is undefined or null, the height of the timeline is automatically
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adjusted to fit the contents.
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It is possible to set a maximum height using option <code>maxHeight</code>
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to prevent the timeline from getting too high in case of automatically
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calculated height.
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</td>
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</tr>
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<tr>
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<td>margin.axis</td>
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<td>Number</td>
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<td>20</td>
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<td>The minimal margin in pixels between items and the time axis.</td>
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</tr>
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<tr>
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<td>margin.item</td>
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<td>Number</td>
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<td>10</td>
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<td>The minimal margin in pixels between items.</td>
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</tr>
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<tr>
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<td>max</td>
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<td>Date</td>
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<td>none</td>
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<td>Set a maximum Date for the visible range.
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It will not be possible to move beyond this maximum.
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</td>
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</tr>
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<tr>
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<td>maxHeight</td>
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<td>Number</td>
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<td>none</td>
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<td>Specifies a maximum height for the Timeline in pixels.
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</td>
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</tr>
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<tr>
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<td>min</td>
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<td>Date</td>
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<td>none</td>
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<td>Set a minimum Date for the visible range.
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It will not be possible to move beyond this minimum.
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</td>
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</tr>
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<tr>
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<td>order</td>
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<td>function</td>
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<td>none</td>
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<td>Provide a custom sort function to order the items. The order of the
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items is determining the way they are stacked. The function
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order is called with two parameters, both of type
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`vis.components.items.Item`.
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</td>
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</tr>
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<tr>
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<td>orientation</td>
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<td>String</td>
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<td>'bottom'</td>
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<td>Orientation of the timeline: 'top' or 'bottom' (default).
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If orientation is 'bottom', the time axis is drawn at the bottom,
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and if 'top', the axis is drawn on top.</td>
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</tr>
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<tr>
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<td>padding</td>
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<td>Number</td>
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<td>5</td>
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<td>The padding of items, needed to correctly calculate the size
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of item ranges. Must correspond with the css of item ranges.</td>
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</tr>
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<tr>
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<td>showMajorLabels</td>
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<td>boolean</td>
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<td>true</td>
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<td>By default, the timeline shows both minor and major date labels on the
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time axis.
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For example the minor labels show minutes and the major labels show hours.
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When <code>showMajorLabels</code> is <code>false</code>, no major labels
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are shown.</td>
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</tr>
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<tr>
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<td>showMinorLabels</td>
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<td>boolean</td>
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<td>true</td>
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<td>By default, the timeline shows both minor and major date labels on the
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time axis.
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For example the minor labels show minutes and the major labels show hours.
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When <code>showMinorLabels</code> is <code>false</code>, no minor labels
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are shown. When both <code>showMajorLabels</code> and
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<code>showMinorLabels</code> are false, no horizontal axis will be
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visible.</td>
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</tr>
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<tr>
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<td>start</td>
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<td>Date</td>
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<td>none</td>
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<td>The initial start date for the axis of the timeline.
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If not provided, the earliest date present in the events is taken as start date.</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>'box'</td>
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<td>Specifies the style for the timeline items. Choose from 'dot' or 'box'.
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Note that the content of the items can override this global style,
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and can contain additional html formatting.
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</td>
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</tr>
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<tr>
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<td>width</td>
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<td>String</td>
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<td>'100%'</td>
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<td>The width of the timeline in pixels or as a percentage.</td>
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</tr>
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<tr>
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<td>zoomMax</td>
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<td>Number</td>
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<td>315360000000000</td>
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<td>Set a maximum zoom interval for the visible range in milliseconds.
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It will not be possible to zoom out further than this maximum.
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Default value equals about 10000 years.
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</td>
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</tr>
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<tr>
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<td>zoomMin</td>
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<td>Number</td>
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<td>10</td>
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<td>Set a minimum zoom interval for the visible range in milliseconds.
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It will not be possible to zoom in further than this minimum.
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</td>
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</tr>
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</table>
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<h2 id="Methods">Methods</h2>
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<p>
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The Timeline supports the following methods.
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</p>
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<table>
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<tr>
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<th>Method</th>
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<th>Return Type</th>
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<th>Description</th>
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</tr>
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<tr>
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<td>setGroups(groups)</td>
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<td>none</td>
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<td>Set a data set with groups for the Timeline.
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<code>groups</code> can be an Array with Objects,
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a DataSet, or a DataView.
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</td>
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</tr>
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<tr>
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<td>setItems(items)</td>
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<td>none</td>
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<td>Set a data set with items for the Timeline.
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<code>items</code> can be an Array with Objects,
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a DataSet, or a DataView.
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</td>
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</tr>
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<tr>
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<td>setOptions(options)</td>
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<td>none</td>
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<td>Set or update options. It is possible to change any option
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of the timeline at any time. You can for example switch orientation
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on the fly.
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</td>
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</tr>
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</table>
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<h2 id="Styles">Styles</h2>
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<p>
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All parts of the Timeline have a class name and a default css style.
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The styles can be overwritten, which enables full customization of the layout
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of the Timeline.
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</p>
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<p>For example, to change the border and background color of all items, include the
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following code inside the head of your html code or in a separate stylesheet.</p>
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<pre class="prettyprint lang-html"><style>
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.graph .item {
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border-color: orange;
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background-color: yellow;
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}
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</style>
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</pre>
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<h2 id="Data_Policy">Data Policy</h2>
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<p>
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All code and data are processed and rendered in the browser. No data is sent to any server.
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</p>
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</div>
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</body>
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</html>
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