example/text-links/index-3d.html

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

  <script src="//unpkg.com/react/umd/react.production.min.js"></script>
  <script src="//unpkg.com/react-dom/umd/react-dom.production.min.js"></script>
  <script src="//unpkg.com/@babel/standalone"></script>

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

<body>
  <div id="graph"></div>

  <script type="importmap">{ "imports": { "three": "https://unpkg.com/three/build/three.module.js" }}</script>
  <script type="text/jsx" data-type="module">
    import SpriteText from "//unpkg.com/three-spritetext/dist/three-spritetext.mjs";

    fetch('../datasets/miserables.json').then(res => res.json()).then(data => {
      ReactDOM.render(
        <ForceGraph3D
          graphData={data}
          nodeLabel="id"
          nodeAutoColorBy="group"
          linkThreeObjectExtend={true}
          linkThreeObject={link => {
            // extend link with text sprite
            const sprite = new SpriteText(`${link.source} > ${link.target}`);
            sprite.color = 'lightgrey';
            sprite.textHeight = 1.5;
            return sprite;
          }}
          linkPositionUpdate={(sprite, { start, end }) => {
            const middlePos = Object.assign(...['x', 'y', 'z'].map(c => ({
              [c]: start[c] + (end[c] - start[c]) / 2 // calc middle point
            })));

            // Position sprite
            Object.assign(sprite.position, middlePos);
          }}
        />,
        document.getElementById('graph')
      );
    });
  </script>
</body>