contrails/frustumMap.html at main · pless/contrails · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
  <title>WorldScope Camera Frustums</title>

  <!-- CesiumJS from CDN -->
  <script src="https://cesium.com/downloads/cesiumjs/releases/1.114/Build/Cesium/Cesium.js"></script>
  <link href="https://cesium.com/downloads/cesiumjs/releases/1.114/Build/Cesium/Widgets/widgets.css" rel="stylesheet"/>

  <style>
    html, body, #cesiumContainer {
      width: 100%; height: 100%;
      margin: 0; padding: 0;
      overflow: hidden;
      background: #000;
      font-family: sans-serif;
    }
    #loadingOverlay {
      position: absolute;
      top: 50%; left: 50%;
      transform: translate(-50%, -50%);
      color: white;
      font-size: 1.2em;
      z-index: 10;
      pointer-events: none;
    }
  </style>
</head>
<body>
  <div id="cesiumContainer"></div>
  <div id="loadingOverlay">Loading frustums...</div>

  <script>
    // ── Replace with your Cesium Ion token ──────────────────────────────────
    Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiI2MTQ4YzNkZC1mNzkzLTQyMWUtYWM3NS05NTNmMjhkMWY0ZmUiLCJpZCI6MzU1NzMxLCJpYXQiOjE3NjE4ODgwMjJ9.7-GbwS9vE6N-pPZjhVd1MElMsJKNyWCqU0-wMyVmSvA';
    // ────────────────────────────────────────────────────────────────────────

    const viewer = new Cesium.Viewer('cesiumContainer', {
      terrain: Cesium.Terrain.fromWorldTerrain(),
      animation: false,
      baseLayerPicker: true,
      fullscreenButton: true,
      geocoder: false,
      homeButton: true,
      infoBox: true,
      sceneModePicker: true,
      selectionIndicator: true,
      timeline: false,
      navigationHelpButton: true,
    });

    // Enable underground and better 3D rendering
    viewer.scene.globe.depthTestAgainstTerrain = false;

    const KML_URL = './frustums-all-large.kml';

    const dataSource = Cesium.KmlDataSource.load(KML_URL, {
      camera: viewer.scene.camera,
      canvas: viewer.scene.canvas,
      clampToGround: false,   // keep 3D altitude
    });

    viewer.dataSources.add(dataSource).then(function (ds) {
      document.getElementById('loadingOverlay').style.display = 'none';
      // Fly camera to fit all frustums in view
      viewer.flyTo(ds);
    }).catch(function (err) {
      document.getElementById('loadingOverlay').textContent =
        'Error loading KML: ' + err.message;
      console.error(err);
    });
  </script>
</body>
</html>