You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
153 lines
4.3 KiB
153 lines
4.3 KiB
<!doctype html>
|
|
<html>
|
|
<head>
|
|
<title>Network | Random nodes</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 destroy() {
|
|
if (network !== null) {
|
|
network.destroy();
|
|
network = null;
|
|
}
|
|
}
|
|
|
|
function draw() {
|
|
destroy();
|
|
nodes = [];
|
|
edges = [];
|
|
var connectionCount = [];
|
|
|
|
// randomly create some nodes and edges
|
|
var nodeCount = document.getElementById('nodeCount').value;
|
|
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 directionInput = document.getElementById("direction").value;
|
|
var options = {
|
|
layout: {
|
|
hierarchical:{
|
|
direction: directionInput
|
|
}
|
|
}
|
|
};
|
|
network = new vis.Network(container, data, options);
|
|
|
|
// add event listeners
|
|
network.on('select', function(params) {
|
|
document.getElementById('selection').innerHTML = 'Selection: ' + params.nodes;
|
|
});
|
|
}
|
|
|
|
</script>
|
|
<script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-61231638-1', 'auto');ga('send', 'pageview');</script></head>
|
|
|
|
<body onload="draw();">
|
|
<h2>Hierarchical Layout - Scale-Free-Network</h2>
|
|
<div style="width:700px; font-size:14px; text-align: justify;">
|
|
This example shows the randomly generated <b>scale-free-network</b> set of nodes and connected edges from example 2.
|
|
In this example, hierarchical layout has been enabled and the vertical levels are determined automatically.
|
|
</div>
|
|
<br />
|
|
<form onsubmit="draw(); return false;">
|
|
<label for="nodeCount">Number of nodes:</label>
|
|
<input id="nodeCount" type="text" value="25" style="width: 50px;">
|
|
<input type="submit" value="Go">
|
|
</form>
|
|
<input type="button" id="btn-UD" value="Up-Down">
|
|
<input type="button" id="btn-DU" value="Down-Up">
|
|
<input type="button" id="btn-LR" value="Left-Right">
|
|
<input type="button" id="btn-RL" value="Right-Left">
|
|
<input type="hidden" id='direction' value="UD">
|
|
|
|
<script language="javascript">
|
|
var directionInput = document.getElementById("direction");
|
|
var btnUD = document.getElementById("btn-UD");
|
|
btnUD.onclick = function() {
|
|
directionInput.value = "UD";
|
|
draw();
|
|
}
|
|
var btnDU = document.getElementById("btn-DU");
|
|
btnDU.onclick = function() {
|
|
directionInput.value = "DU";
|
|
draw();
|
|
};
|
|
var btnLR = document.getElementById("btn-LR");
|
|
btnLR.onclick = function() {
|
|
directionInput.value = "LR";
|
|
draw();
|
|
};
|
|
var btnRL = document.getElementById("btn-RL");
|
|
btnRL.onclick = function() {
|
|
directionInput.value = "RL";
|
|
draw();
|
|
};
|
|
</script>
|
|
<br>
|
|
|
|
<div id="mynetwork"></div>
|
|
|
|
<p id="selection"></p>
|
|
</body>
|
|
</html>
|