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<!DOCTYPE HTML>
<html>
<head>
<title>Timeline | navigation menu</title>
<style type="text/css">
body, html, input {
font-family: sans-serif;
font-size: 12pt;
}
#visualization {
position: relative;
}
.menu {
position: absolute;
top: 0;
right: 0;
margin: 10px;
z-index: 9999;
}
</style>
<script src="../../../dist/vis.js"></script>
<link href="../../../dist/vis-timeline-graph2d.min.css" rel="stylesheet" type="text/css" />
<script src="../../googleAnalytics.js"></script>
</head>
<body>
<p>
Create your own navigation menu by creating an overlay with buttons to zoom and move.
</p>
<div id="visualization">
<div class="menu">
<input type="button" id="zoomIn" value="Zoom in"/>
<input type="button" id="zoomOut" value="Zoom out"/>
<input type="button" id="moveLeft" value="Move left"/>
<input type="button" id="moveRight" value="Move right"/>
</div>
</div>
<script type="text/javascript">
// create a timeline with some data
var container = document.getElementById('visualization');
var items = new vis.DataSet([
{id: 1, content: 'item 1', start: '2014-04-20'},
{id: 2, content: 'item 2', start: '2014-04-14'},
{id: 3, content: 'item 3', start: '2014-04-18'},
{id: 4, content: 'item 4', start: '2014-04-16', end: '2014-04-19'},
{id: 5, content: 'item 5', start: '2014-04-25'},
{id: 6, content: 'item 6', start: '2014-04-27', type: 'point'}
]);
var options = {};
var timeline = new vis.Timeline(container, items, options);
/**
* Move the timeline a given percentage to left or right
* @param {Number} percentage For example 0.1 (left) or -0.1 (right)
*/
function move (percentage) {
var range = timeline.getWindow();
var interval = range.end - range.start;
timeline.setWindow({
start: range.start.valueOf() - interval * percentage,
end: range.end.valueOf() - interval * percentage
});
}
// attach events to the navigation buttons
document.getElementById('zoomIn').onclick = function () { timeline.zoomIn( 0.2); };
document.getElementById('zoomOut').onclick = function () { timeline.zoomOut( 0.2); };
document.getElementById('moveLeft').onclick = function () { move( 0.2); };
document.getElementById('moveRight').onclick = function () { move(-0.2); };
</script>
</body>
</html>
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