vis.js is a dynamic, browser-based visualization library
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<!doctype html>
<html>
<head>
<title>Network | Animation</title>
<style type="text/css">
body {
font: 10pt sans;
}
#mynetwork {
width: 600px;
height: 600px;
border: 1px solid lightgray;
}
div.left {
position:relative;
float:left;
width:300px;
border: 1px #c7c7c7 solid;
height:590px;
padding:5px;
}
div.right {
padding-left:10px;
float:left;
width:600px;
}
div.bottom {
position:absolute;
bottom:5px;
}
</style>
<script type="text/javascript" src="../../dist/vis.js"></script>
<link href="../../dist/vis.css" rel="stylesheet" type="text/css" />
<script type="text/javascript">
var nodes = null;
var edges = null;
var network = null;
var doButton, focusButton, showButton;
var statusUpdateSpan;
var finishMessage = '';
function destroy() {
if (network !== null) {
network.destroy();
network = null;
}
}
function draw() {
destroy();
statusUpdateSpan = document.getElementById('statusUpdate');
doButton = document.getElementById('btnDo');
focusButton = document.getElementById('btnFocus');
showButton = document.getElementById('btnShow');
nodes = [];
edges = [];
var connectionCount = [];
// randomly create some nodes and edges
var nodeCount = 25;
for (var i = 0; i < nodeCount; i++) {
nodes.push({
id: i,
label: String(i)
});
connectionCount[i] = 0;
// create edges in a scale-free-network way
if (i == 1) {
var from = i;
var to = 0;
edges.push({
from: from,
to: to
});
connectionCount[from]++;
connectionCount[to]++;
}
else if (i > 1) {
var conn = edges.length * 2;
var rand = Math.floor(Math.random() * conn);
var cum = 0;
var j = 0;
while (j < connectionCount.length && cum < rand) {
cum += connectionCount[j];
j++;
}
var from = i;
var to = j;
edges.push({
from: from,
to: to
});
connectionCount[from]++;
connectionCount[to]++;
}
}
// create a network
var container = document.getElementById('mynetwork');
var data = {
nodes: nodes,
edges: edges
};
var options = {
physics: {
stabilization: {
iterations: 1200
}
}
};
network = new vis.Network(container, data, options);
// add event listeners
network.on('select', function(params) {
document.getElementById('selection').innerHTML = 'Selection: ' + params.nodes;
});
network.on('stabilized', function (params) {
document.getElementById('stabilization').innerHTML = 'Stabilization took ' + params.iterations + ' iterations.';
});
network.on('animationFinished', function() {
statusUpdateSpan.innerHTML = finishMessage;
})
}
function zoomExtentAnimated() {
var offsetx = parseInt(document.getElementById('offsetx').value);
var offsety = parseInt(document.getElementById('offsety').value);
var duration = parseInt(document.getElementById('duration').value);
var easingFunction = document.getElementById('easingFunction').value;
var options = {offset: {x:offsetx,y:offsety},
duration: duration,
easingFunction: easingFunction
};
statusUpdateSpan.innerHTML = 'Doing ZoomExtent() Animation.';
finishMessage = 'Animation finished.';
network.fit(options);
}
function doDefaultAnimation() {
var offsetx = parseInt(document.getElementById('offsetx').value);
var offsety = parseInt(document.getElementById('offsety').value);
var scale = parseFloat(document.getElementById('scale').value);
var positionx = parseInt(document.getElementById('positionx').value);
var positiony = parseInt(document.getElementById('positiony').value);
var easingFunction = document.getElementById('easingFunction').value;
var options = {
position: {x:positionx,y:positiony},
scale: scale,
offset: {x:offsetx,y:offsety},
animation: true // default duration is 1000ms and default easingFunction is easeInOutQuad.
};
statusUpdateSpan.innerHTML = 'Doing Animation.';
finishMessage = 'Animation finished.';
network.moveTo(options);
}
function doAnimation() {
var offsetx = parseInt(document.getElementById('offsetx').value);
var offsety = parseInt(document.getElementById('offsety').value);
var duration = parseInt(document.getElementById('duration').value);
var scale = parseFloat(document.getElementById('scale').value);
var positionx = parseInt(document.getElementById('positionx').value);
var positiony = parseInt(document.getElementById('positiony').value);
var easingFunction = document.getElementById('easingFunction').value;
var options = {
position: {x:positionx,y:positiony},
scale: scale,
offset: {x:offsetx,y:offsety},
animation: {
duration: duration,
easingFunction: easingFunction
}
};
statusUpdateSpan.innerHTML = 'Doing Animation.';
finishMessage = 'Animation finished.';
network.moveTo(options);
}
function focusRandom() {
var nodeId = Math.floor(Math.random() * 25);
var offsetx = parseInt(document.getElementById('offsetx').value);
var offsety = parseInt(document.getElementById('offsety').value);
var duration = parseInt(document.getElementById('duration').value);
var scale = parseFloat(document.getElementById('scale').value);
var easingFunction = document.getElementById('easingFunction').value;
var options = {
// position: {x:positionx,y:positiony}, // this is not relevant when focusing on nodes
scale: scale,
offset: {x:offsetx,y:offsety},
animation: {
duration: duration,
easingFunction: easingFunction
}
};
statusUpdateSpan.innerHTML = 'Focusing on node: ' + nodeId;
finishMessage = 'Node: ' + nodeId + ' in focus.';
network.focus(nodeId, options);
}
var showInterval = false;
var showPhase = 1;
function startShow() {
if (showInterval !== false) {
showInterval = false;
showButton.value = 'Start a show!';
network.fit();
}
else {
showButton.value = 'Stop the show!';
var duration = parseInt(document.getElementById('duration').value);
focusRandom();
setTimeout(doTheShow, duration);
showInterval = true;
}
}
function doTheShow() {
if (showInterval == true) {
var duration = parseInt(document.getElementById('duration').value);
if (showPhase == 0) {
focusRandom();
showPhase = 1;
}
else {
zoomExtentAnimated();
showPhase = 0;
}
setTimeout(doTheShow, duration);
}
}
</script>
<script src="../googleAnalytics.js"></script>
</head>
<body onload="draw();">
<h2>Camera animations</h2>
<div style="width:700px; font-size:14px;">
You can move the view around programmatically using the .moveTo(options) function. The options supplied to this function can
also be (partially) supplied to the .zoomExtent() and .focusOnNode() methods. These are explained in the docs.
<br /><br/>
The buttons below take the fields from the table when they can. For instance, the "Animate with default settings." takes the position, scale and offset while using
the default animation values for duration and easing function. The focusOnNode takes everything except the position and the zoomExtent takes only the duration and easing function.
<br/><br/>
Here you can see a full description of the options you can supply to moveTo:
</div>
<pre>
var moveToOptions = {
position: {x:x, y:x}, // position to animate to (Numbers)
scale: 1.0, // scale to animate to (Number)
offset: {x:x, y:y}, // offset from the center in DOM pixels (Numbers)
animation: { // animation object, can also be Boolean
duration: 1000, // animation duration in milliseconds (Number)
easingFunction: "easeInOutQuad" // Animation easing function, available are:
} // linear, easeInQuad, easeOutQuad, easeInOutQuad,
} // easeInCubic, easeOutCubic, easeInOutCubic,
// easeInQuart, easeOutQuart, easeInOutQuart,
// easeInQuint, easeOutQuint, easeInOutQuint
</pre>
<div class="left">
<table>
<tr>
<td>position x</td><td><input type="text" value="300" id="positionx" style="width:170px;"></td>
</tr>
<tr>
<td>position y</td><td><input type="text" value="300" id="positiony" style="width:170px;"></td>
</tr>
<tr>
<td>scale</td><td><input type="text" value="1.0" id="scale" style="width:170px;"></td>
</tr>
<tr>
<td>offset x</td><td><input type="text" value="0" id="offsetx" style="width:170px;"> px</td>
</tr>
<tr>
<td>offset y</td><td><input type="text" value="0" id="offsety" style="width:170px;"> px</td>
</tr>
<tr>
<td>duration</td><td><input type="text" value="2500" id="duration" style="width:170px;"> ms</td>
</tr>
<tr>
<td>easingFunction</td><td>
<select id="easingFunction" style="width:174px;">
<option value="linear">linear</option>
<option value="easeInQuad">easeInQuad</option>
<option value="easeOutQuad">easeOutQuad</option>
<option value="easeInOutQuad" selected="selected">easeInOutQuad</option>
<option value="easeInCubic">easeInCubic</option>
<option value="easeOutCubic">easeOutCubic</option>
<option value="easeInOutCubic">easeInOutCubic</option>
<option value="easeInQuart">easeInQuart</option>
<option value="easeOutQuart">easeOutQuart</option>
<option value="easeInOutQuart">easeInOutQuart</option>
<option value="easeInQuint">easeInQuint</option>
<option value="easeOutQuint">easeOutQuint</option>
<option value="easeInOutQuint">easeInOutQuint</option>
</select>
</td>
</tr>
</table>
<div class="bottom">
<span id="statusUpdate"></span><br />
Examples:
<input type="button" onclick="doAnimation();" value="Animate with above settings." style="width:300px;" id="btnDo"> <br/>
<input type="button" onclick="doDefaultAnimation();" value="Animate with default settings." style="width:300px;" id="btnDoDefault"> <br/>
<input type="button" onclick="zoomExtentAnimated();" value="Animated ZoomExtent()." style="width:300px;" id="btnZoom"> <br/>
<input type="button" onclick="focusRandom();" value="Focus on random node." style="width:300px;" id="btnFocus"><br/>
<input type="button" onclick="startShow();" value="Start a show!" style="width:300px;" id="btnShow"><br/>
</div>
</div>
<div class="right">
<div id="mynetwork"></div>
<p id="selection"></p>
<p id="stabilization"></p>
</div>
</body>
</html>