vis.js is a dynamic, browser-based visualization library
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<!DOCTYPE html>
<html>
<head>
<script src="../dist/vis.js"></script>
<link type="text/css" rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/vis/4.9.0/vis.min.css">
<style>
#mynetwork {
width: 1400px;
height: 800px;
border: 1px solid gray;
}
</style>
</head>
<body onload="draw()">
<script src="https://rawgit.com/Tooa/6e17f2d7b8e34ef94719/raw/a10096a6b88c992c57d032b1ed3079d7cc4b1f51/data.js"></script>
<div id="mynetwork"></div>
<script>
function draw() {
// create an array with nodes
nodes = new vis.DataSet([
{id: 1, label: 'N1', color:"#FF0000"},
{id: 2, label: 'N2'}
]);
edges = new vis.DataSet([
{id: '1%2', from: 1, to: 2},
{id: '2%1',from: 2, to: 1}
]);
var container = document.getElementById('mynetwork');
var data = {
nodes: nodes,
edges: edges
};
var options = {edges:{arrows:'to'}};
network = new vis.Network(container, data, options);
nodes.update({id: '1', color: null});
nodes.update({id: '1', color: "#FF00FF"});
}
var network, nodes, edges;
</script>
</body>
</html>