example/camera-auto-orbit/index.html

<head>
  <style> body { margin: 0; } </style>

  <script src="//unpkg.com/3d-force-graph"></script>
  <!--<script src="../../dist/3d-force-graph.js"></script>-->
</head>

<body>
  <div id="3d-graph"></div>

  <script>
    // Random tree
    const N = 300;
    const gData = {
      nodes: [...Array(N).keys()].map(i => ({ id: i })),
      links: [...Array(N).keys()]
        .filter(id => id)
        .map(id => ({
          source: id,
          target: Math.round(Math.random() * (id-1))
        }))
    };

    const distance = 1400;

    const Graph = new ForceGraph3D(document.getElementById('3d-graph'))
        .enableNodeDrag(false)
        .enableNavigationControls(false)
        .showNavInfo(false)
        .cameraPosition({ z: distance })
        .graphData(gData);

    // camera orbit
    let angle = 0;
    setInterval(() => {
      Graph.cameraPosition({
        x: distance * Math.sin(angle),
        z: distance * Math.cos(angle)
      });
      angle += Math.PI / 300;
    }, 10);
  </script>
</body>