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65 lines
2.0 KiB
65 lines
2.0 KiB
<!DOCTYPE HTML>
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<html>
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<head>
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<title>Timeline | performance</title>
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<style>
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body, html {
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font-family: arial, sans-serif;
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font-size: 11pt;
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}
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</style>
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<!-- note: moment.js must be loaded before vis.js, else vis.js uses its embedded version of moment.js -->
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<script src="http://cdnjs.cloudflare.com/ajax/libs/moment.js/2.8.4/moment.min.js"></script>
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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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<script src="../googleAnalytics.js"></script>
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</head>
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<body>
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<p>
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Test the performance with a lot of items. The Timeline can load hundreds of thousands of items, but the performance of rendering them in the browser is limited. Rendering typically runs smooth for up to a few hundreds of items at once (you can set a <code>zoomMax</code> to prevent the user from zooming out too far).
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</p>
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<p>
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<label for="count">Number of items</label>
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<input id="count" value="10000">
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<input id="draw" type="button" value="draw">
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</p>
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<div id="visualization"></div>
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<script>
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// create a dataset with items
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var now = moment().minutes(0).seconds(0).milliseconds(0);
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var items = new vis.DataSet({
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type: {start: 'ISODate', end: 'ISODate' }
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});
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// create data
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function createData() {
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var count = parseInt(document.getElementById('count').value) || 100;
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var newData = [];
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var start = now;
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for (var i = 0; i < count; i++) {
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newData.push({id: i, content: 'item ' + i, start: start + 24*3600*1000 * i}); // much much faster than now.clone add days
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}
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items.clear();
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items.add(newData);
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}
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createData();
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document.getElementById('draw').onclick = createData;
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var container = document.getElementById('visualization');
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var options = {
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editable: true,
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start: now.clone().add(-3, 'days'),
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end: now.clone().add(11, 'days'),
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zoomMin: 1000 * 60 * 60 * 24, // a day
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zoomMax: 1000 * 60 * 60 * 24 * 30 * 3 // three months
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};
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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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