<!doctype html>
<html>
<head>
<title>Network | Fully random nodes clustering</title>
<style type="text/css">
body {
font: 10pt sans;
}
#mynetwork {
width: 600px;
height: 600px;
border: 1px solid lightgray;
}
</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;
function draw() {
nodes = [];
edges = [];
// randomly create some nodes and edges
var nodeCount = parseInt(document.getElementById('nodeCount').value);
for (var i = 0; i < nodeCount; i++) {
nodes.push({
id: i,
label: String(i)
});
}
for (var i = 0; i < nodeCount; i++) {
var from = i;
var to = i;
to = i;
while (to == i) {
to = Math.floor(Math.random() * (nodeCount));
}
edges.push({
from: from,
to: to
});
}
// create a network
var clusteringOn = document.getElementById('clustering').checked;
var container = document.getElementById('mynetwork');
var data = {
nodes: nodes,
edges: edges
};
var options = {
physics: {barnesHut:{springLength:120}}, // this is the correct way to set the length of the springs
clustering: {
enabled: clusteringOn
},
stabilize: false
};
network = new vis.Network(container, data, options);
// add event listeners
network.on('select', function(params) {
document.getElementById('selection').innerHTML = 'Selection: ' + params.nodes;
});
}
</script>
</head>
<body onload="draw();">
<h2>Clustering - Fully random network</h2>
<div style="width:700px; font-size:14px; text-align: justify;">
This example shows a fully randomly generated set of nodes and connected edges.
By clicking the checkbox you can turn clustering on and off. If you increase the number of nodes to
a value higher than 100, automatic clustering is used before the initial draw (assuming the checkbox is checked).
<br />
<br />
Clustering is done automatically when zooming out. When zooming in over the cluster, the cluster pops open. When the cluster is very big, a special instance
will be created and the cluster contents will only be simulated in there. Double click will also open a cluster.
<br />
<br />
Try values of 500 and 5000 with and without clustering. All thresholds can be changed to suit your dataset.
</div>
<br />
<form onsubmit="draw(); return false;">
<label for="nodeCount">Number of nodes:</label>
<input id="nodeCount" type="text" value="50" style="width: 50px;">
<label for="clustering">Enable Clustering:</label>
<input id="clustering" type="checkbox" onChange="draw()" checked="true">
<input type="submit" value="Go">
</form>
<br>
<div id="mynetwork"></div>
<p id="selection"></p>
</body>
</html>