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109 lines
3.1 KiB
109 lines
3.1 KiB
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<title>Graph 3D camera position</title>
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<style>
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body {font: 10pt arial;}
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td {font: 10pt arial}
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</style>
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<script type="text/javascript" src="../../dist/vis.js"></script>
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<script type="text/javascript">
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var data = null;
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var graph = null;
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function custom(x, y) {
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return (Math.sin(x/50) * Math.cos(y/50) * 50 + 50);
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}
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// callback function, called when the camera position has changed
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function onCameraPositionChange() {
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// adjust the values of startDate and endDate
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var pos = graph.getCameraPosition();
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document.getElementById('horizontal').value = parseFloat(pos.horizontal.toFixed(3));
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document.getElementById('vertical').value = parseFloat(pos.vertical.toFixed(3));
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document.getElementById('distance').value = parseFloat(pos.distance.toFixed(3));
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}
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// set the camera position
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function setCameraPosition() {
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var horizontal = parseFloat(document.getElementById('horizontal').value);
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var vertical = parseFloat(document.getElementById('vertical').value);
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var distance = parseFloat(document.getElementById('distance').value);
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var pos = {
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horizontal: horizontal,
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vertical: vertical,
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distance: distance
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};
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graph.setCameraPosition(pos);
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// retrieve the camera position again, to get the applied values
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onCameraPositionChange();
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}
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// Called when the Visualization API is loaded.
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function drawVisualization() {
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// Create and populate a data table.
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data = new vis.DataSet();
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// create some nice looking data with sin/cos
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var steps = 50; // number of datapoints will be steps*steps
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var axisMax = 314;
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var axisStep = axisMax / steps;
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for (var x = 0; x < axisMax; x+=axisStep) {
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for (var y = 0; y < axisMax; y+=axisStep) {
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var value = custom(x,y);
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data.add([
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{x:x,y:y,z:value,t:0,style:value}
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]);
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}
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}
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// specify options
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var options = {
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width: '600px',
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height: '600px',
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style: 'surface',
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showPerspective: true,
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showGrid: true,
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showShadow: false,
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keepAspectRatio: true,
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verticalRatio: 0.5
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};
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// create our graph
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var container = document.getElementById('mygraph');
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graph = new vis.Graph3d(container, data, options);
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graph.on('cameraPositionChange', onCameraPositionChange);
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}
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</script>
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</head>
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<body onload="drawVisualization()">
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<h1>Graph 3d camera position</h1>
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<table>
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<tr>
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<td>Horizontal angle (0 to 2*pi)</td>
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<td><input type="text" id="horizontal" value="1.0"></td>
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</tr>
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<tr>
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<td>Vertical angle (0 to 0.5*pi)</td>
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<td><input type="text" id="vertical" value="0.5"></td>
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</tr>
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<tr>
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<td>Distance (0.71 to 5.0)</td>
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<td><input type="text" id="distance" value="1.7"></td>
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</tr>
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<tr>
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<td></td>
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<td><input type="button" value="Set" onclick="setCameraPosition();"></td>
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</tr>
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</table>
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<div id="mygraph"></div>
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<div id="info"></div>
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</body>
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</html>
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