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765 lines
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765 lines
20 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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<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="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>
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<ul>
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<li><a href="#items">Items</a></li>
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<li><a href="#groups">Groups</a></li>
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</ul>
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</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="#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="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="../../dist/vis.js"></script>
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<link href="../../dist/vis.css" rel="stylesheet" type="text/css" />
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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 libraries script and css files in the
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head of your html code:
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</p>
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<pre class="prettyprint lang-html">
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<script src="vis/dist/vis.js"></script>
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<link href="vis/dist/vis.css" rel="stylesheet" type="text/css" />
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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 can be provided with two types of data:
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</p>
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<ul>
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<li><a href="#items">Items</a> containing a set of items to be displayed in time.</li>
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<li><a href="#groups">Groups</a> containing a set of groups used to group items
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together.</li>
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</ul>
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<h3 id="items">Items</h3>
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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: fields 'id', 'type', 'group', 'className'
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}
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// more items...
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]);
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</pre>
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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>id</td>
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<td>String | Number</td>
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<td>no</td>
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<td>An id for the item. Using an id is not required but highly
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recommended. An id is needed when dynamically adding, updating,
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and removing items in a DataSet.</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>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>type</td>
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<td>String</td>
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<td>'box'</td>
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<td>The type of the item. Can be 'box' (default), 'range', or 'point'.
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<!-- TODO: describe rangeoverflow -->
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</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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an 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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<h3 id="groups">Groups</h3>
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<p>
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Like the items, groups are regular JavaScript Arrays and Objects.
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Using groups, items can be grouped together.
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Items are filtered per group, and displayed as
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Group items can contain the properties <code>id</code>,
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<code>content</code>, and <code>className</code> (optional).
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</p>
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<p>
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Groups can be applied to a timeline using the method <code>setGroups</code>.
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A table with groups can be created like:
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</p>
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<pre class="prettyprint lang-js">
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var groups = [
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{
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id: 1,
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content: 'Group 1'
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// Optional: a field 'className'
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}
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// more groups...
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]);
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</pre>
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<p>
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Groups can have the following properties:
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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>id</td>
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<td>String | Number</td>
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<td>yes</td>
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<td>An id for the group. The group will display all items having a
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property <code>group</code> which matches the <code>id</code>
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of the group.</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 group. This can be plain text or html code.</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 groups
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an individual css style. For example, when a group 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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color: red;
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}
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</code>.
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More details on how to style groups 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 type '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>true</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>editable</td>
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<td>Boolean</td>
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<td>true</td>
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<td>If true, the items on the timeline can be dragged.</td>
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<!-- TODO: update documentation as soon as items can be deleted, created, changed -->
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</tr>
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<tr>
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<td>end</td>
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<td>Date | Number | String</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>groupOrder</td>
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<td>String | Function</td>
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<td>none</td>
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<td>Order the groups by a field name or custom sort function.
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By default, groups are not ordered.
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</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 | Number | String</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 | Number | String</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>selectable</td>
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<td>Boolean</td>
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<td>true</td>
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<td>If true, the items on the timeline can be selected.</td>
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</tr>
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<tr>
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<td>showCurrentTime</td>
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<td>boolean</td>
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<td>false</td>
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<td>Show a vertical bar at the current time.</td>
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</tr>
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|
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<tr>
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<td>showCustomTime</td>
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<td>boolean</td>
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<td>false</td>
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<td>Show a vertical bar displaying a custom time. This line can be dragged by the user. The custom time can be utilized to show a state in the past or in the future. When the custom time bar is dragged by the user, the event <code>timechange</code> is fired repeatedly. After the bar is dragged, the event <code>timechanged</code> is fired once.</td>
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</tr>
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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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|
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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 | Number | String</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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|
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<tr>
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<td>type</td>
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<td>String</td>
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<td>'box'</td>
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<td>Specifies the type for the timeline items. Choose from 'dot' or 'point'.
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Note that individual items can override this global type.
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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.
|
|
</td>
|
|
</tr>
|
|
|
|
|
|
</table>
|
|
|
|
<h2 id="Methods">Methods</h2>
|
|
<p>
|
|
The Timeline supports the following methods.
|
|
</p>
|
|
|
|
<table>
|
|
<tr>
|
|
<th>Method</th>
|
|
<th>Return Type</th>
|
|
<th>Description</th>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>getCustomTime()</td>
|
|
<td>Date</td>
|
|
<td>Retrieve the custom time. Only applicable when the option <code>showCustomTime</code> is true.
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>setCustomTime(time)</td>
|
|
<td>none</td>
|
|
<td>Adjust the custom time bar. Only applicable when the option <code>showCustomTime</code> is true. <code>time</code> is a Date object.
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>getSelection()</td>
|
|
<td>ids</td>
|
|
<td>Get an array with the ids of the currently selected items.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>on(event, callback)</td>
|
|
<td>none</td>
|
|
<td>Create an event listener. The callback function is invoked every time the event is triggered. Avialable events: <code>rangechange</code>, <code>rangechanged</code>, <code>select</code>. The callback function is invoked as <code>callback(properties)</code>, where <code>properties</code> is an object containing event specific properties. See section <a href="#Events">Events for more information</a>.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>off(event, callback)</td>
|
|
<td>none</td>
|
|
<td>Remove an event listener created before via function <code>on(event, callback)</code>. See section <a href="#Events">Events for more information</a>.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>setGroups(groups)</td>
|
|
<td>none</td>
|
|
<td>Set a data set with groups for the Timeline.
|
|
<code>groups</code> can be an Array with Objects,
|
|
a DataSet, or a DataView. For each of the groups, the items of the
|
|
timeline are filtered on the property <code>group</code>, which
|
|
must correspond with the id of the group.
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>setItems(items)</td>
|
|
<td>none</td>
|
|
<td>Set a data set with items for the Timeline.
|
|
<code>items</code> can be an Array with Objects,
|
|
a DataSet, or a DataView.
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>setOptions(options)</td>
|
|
<td>none</td>
|
|
<td>Set or update options. It is possible to change any option of the timeline at any time. You can for example switch orientation on the fly.
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>setSelection([ids])</td>
|
|
<td>none</td>
|
|
<td>Select or deselect items. Currently selected items will be unselected.
|
|
</td>
|
|
</tr>
|
|
|
|
</table>
|
|
|
|
|
|
<h2 id="Events">Events</h2>
|
|
<p>
|
|
Timeline fires events when changing the visible window by dragging, when
|
|
selecting items, and when dragging the custom time bar.
|
|
</p>
|
|
|
|
<p>
|
|
Here an example on how to listen for a <code>select</code> event.
|
|
</p>
|
|
|
|
<pre class="prettyprint lang-js">
|
|
timeline.on('select', function (properties) {
|
|
alert('selected items: ' + properties.nodes);
|
|
});
|
|
</pre>
|
|
|
|
<p>
|
|
A listener can be removed via the function <code>off</code>:
|
|
</p>
|
|
|
|
<pre class="prettyprint lang-js">
|
|
function onSelect (properties) {
|
|
alert('selected items: ' + properties.nodes);
|
|
}
|
|
|
|
// add event listener
|
|
timeline.on('select', onSelect);
|
|
|
|
// do stuff...
|
|
|
|
// remove event listener
|
|
timeline.off('select', onSelect);
|
|
</pre>
|
|
|
|
|
|
<p>
|
|
The following events are available.
|
|
</p>
|
|
|
|
<table>
|
|
<colgroup>
|
|
<col style="width: 20%;">
|
|
<col style="width: 40%;">
|
|
<col style="width: 40%;">
|
|
</colgroup>
|
|
|
|
<tr>
|
|
<th>name</th>
|
|
<th>Description</th>
|
|
<th>Properties</th>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>rangechange</td>
|
|
<td>Fired repeatedly when the user is dragging the timeline window.
|
|
</td>
|
|
<td>
|
|
<ul>
|
|
<li><code>start</code> (Number): timestamp of the current start of the window.</li>
|
|
<li><code>end</code> (Number): timestamp of the current end of the window.</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>rangechanged</td>
|
|
<td>Fired once after the user has dragged the timeline window.
|
|
</td>
|
|
<td>
|
|
<ul>
|
|
<li><code>start</code> (Number): timestamp of the current start of the window.</li>
|
|
<li><code>end</code> (Number): timestamp of the current end of the window.</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>select</td>
|
|
<td>Fired after the user selects or deselects items by tapping or holding them.
|
|
Not fired when the method <code>setSelection</code>is executed.
|
|
</td>
|
|
<td>
|
|
<ul>
|
|
<li><code>items</code>: an array with the ids of the selected items</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>timechange</td>
|
|
<td>Fired repeatedly when the user is dragging the custom time bar.
|
|
Only available when the custom time bar is enabled.
|
|
</td>
|
|
<td>
|
|
<ul>
|
|
<li><code>time</code> (Date): the current time.</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td>timechanged</td>
|
|
<td>Fired once after the user has dragged the custom time bar.
|
|
Only available when the custom time bar is enabled.
|
|
</td>
|
|
<td>
|
|
<ul>
|
|
<li><code>time</code> (Date): the current time.</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
|
|
</table>
|
|
|
|
|
|
<h2 id="Styles">Styles</h2>
|
|
<p>
|
|
All parts of the Timeline have a class name and a default css style.
|
|
The styles can be overwritten, which enables full customization of the layout
|
|
of the Timeline.
|
|
</p>
|
|
|
|
<p>For example, to change the border and background color of all items, include the
|
|
following code inside the head of your html code or in a separate stylesheet.</p>
|
|
<pre class="prettyprint lang-html"><style>
|
|
.graph .item {
|
|
border-color: orange;
|
|
background-color: yellow;
|
|
}
|
|
</style>
|
|
</pre>
|
|
|
|
|
|
<h2 id="Data_Policy">Data Policy</h2>
|
|
<p>
|
|
All code and data is processed and rendered in the browser.
|
|
No data is sent to any server.
|
|
</p>
|
|
|
|
</div>
|
|
</body>
|
|
</html>
|