model-element-samples/boundingbox.html at main · zachernuk/model-element-samples · GitHub

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<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Model: Bounding-box information</title>
    <link rel="stylesheet" href="style.css" />
  </head>
  <body>
    <h1>Model: Bounding-box information</h1>
    <hr />
    <p>
      after <code>model.ready</code> promise is resolved, a model can report its
      <code>DOMPoint boundingBoxExtents</code> and
      <code>DOMPoint boundingBoxCenter</code>.
    </p>

    <model alt="A model of a teapot">
      <source src="./teapot.usdz" type="model/vnd.usdz+zip" />
      <source src="./teapot.glb" type="model/gltf-binary" />
      <img src="./teapot-fallback-black.jpg" alt="An image of a model of a teapot" >
    </model>
    <br />
    <h2>Report:</h2>
    <div id="log"></div>
  </body>

  <script type="module">
    function writePoint(pt) {
      return `x: ${pt.x}, y: ${pt.y}, z: ${pt.z}`;
    }

    const model = document.querySelector("model");
    await model.ready;

    const log = document.getElementById("log");
    log.innerHTML = `bounding box center: ${writePoint(
      model.boundingBoxCenter
    )} <br/>
    bounding box extents: ${writePoint(model.boundingBoxExtents)}`;
  </script>
</html>