<!DOCTYPE HTML>
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<html>
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<head>
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<title>Graph2d | 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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span.label {
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width:150px;
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display:inline-block;
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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="https://code.jquery.com/jquery-3.3.1.min.js"
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integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8="
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crossorigin="anonymous">
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</script>
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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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</head>
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<body>
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<br />
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Click the button then choose a file to graph.
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<button onclick="openFile(dispFile)">Open a file</button>
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<pre id="contents"></pre>
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<div id="visualization">
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<script type="text/javascript">
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function dispFile(contents)
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{
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console.log(contents);
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console.log(typeof contents);
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var container = document.getElementById('visualization');
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var items = JSON.parse(contents);
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var dataset = new vis.DataSet(items);
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var options = {};
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var graph2d = new vis.Graph2d(container, dataset, options);
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}
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function clickElem(elem)
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{
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// Thx user1601638 on Stack Overflow (6/6/2018 - https://stackoverflow.com/questions/13405129/javascript-create-and-save-file )
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var eventMouse = document.createEvent("MouseEvents");
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eventMouse.initMouseEvent("click", true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
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elem.dispatchEvent(eventMouse);
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}
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function openFile(func)
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{
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readFile = function(e)
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{
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var file = e.target.files[0];
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if (!file)
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{
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return;
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}
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var reader = new FileReader();
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reader.onload = function(e)
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{
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var contents = e.target.result;
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fileInput.func(contents);
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document.body.removeChild(fileInput);
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}
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reader.readAsText(file);
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}
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fileInput = document.createElement("input");
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fileInput.type='file';
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fileInput.style.display='none';
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fileInput.onchange=readFile;
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fileInput.func=func;
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document.body.appendChild(fileInput);
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clickElem(fileInput);
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}
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</script>
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</div>
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</body>
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</html>
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