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