3d-force-graph
Version:
UI component for a 3D force-directed graph using ThreeJS and d3-force-3d layout engine
50 lines (39 loc) • 1.39 kB
HTML
<head>
<style> body { margin: 0; } </style>
<script src="//cdn.jsdelivr.net/npm/3d-force-graph"></script>
<!--<script src="../../dist/3d-force-graph.js"></script>-->
</head>
<body>
<div id="3d-graph"></div>
<script type="module">
import { forceCollide } from 'https://esm.sh/d3-force-3d';
const N = 50;
const nodes = [...Array(N).keys()].map(() => ({
// Initial velocity in random direction
vx: Math.random(),
vy: Math.random(),
vz: Math.random()
}));
const Graph = new ForceGraph3D(document.getElementById('3d-graph'));
Graph.cooldownTime(Infinity)
.d3AlphaDecay(0)
.d3VelocityDecay(0)
// Deactivate existing forces
.d3Force('center', null)
.d3Force('charge', null)
// Add collision and bounding box forces
.d3Force('collide', forceCollide(Graph.nodeRelSize()))
.d3Force('box', () => {
const CUBE_HALF_SIDE = Graph.nodeRelSize() * N * 0.5;
nodes.forEach(node => {
const x = node.x || 0, y = node.y || 0, z = node.z || 0;
// bounce on box walls
if (Math.abs(x) > CUBE_HALF_SIDE) { node.vx *= -1; }
if (Math.abs(y) > CUBE_HALF_SIDE) { node.vy *= -1; }
if (Math.abs(z) > CUBE_HALF_SIDE) { node.vz *= -1; }
});
})
// Add nodes
.graphData({ nodes, links: [] });
</script>
</body>