itowns
Version:
A JS/WebGL framework for 3D geospatial data visualization
81 lines (65 loc) • 2.98 kB
HTML
<html>
<head>
<title>Itowns - WebXR Example</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" type="text/css" href="css/example.css">
</head>
<body>
<div id="viewerDiv"></div>
<script type="importmap">
{
"imports": {
"three/addons/": "https://cdn.jsdelivr.net/npm/three@0.170.0/examples/jsm/"
}
}
</script>
<!-- Import iTowns source code -->
<script src="../dist/itowns.js"></script>
<script type="module">
import { VRButton } from 'three/addons/webxr/VRButton.js';
// ---------- SETUP THE VR VIEW : ----------
// Define camera initial position
const placement = {
coord: new itowns.Coordinates('EPSG:4326', 6.227, 45.167),
range: 15000,
tilt: 5,
heading: 62,
}
// `viewerDiv` will contain iTowns' rendering area (`<canvas>`)
const viewerDiv = document.getElementById('viewerDiv');
// Create a GlobeView
const view = new itowns.GlobeView(viewerDiv, placement, {
webXR: { scale: 0.005 },
});
// Temporary workaround to https://github.com/iTowns/itowns/issues/2473
view.scene.matrixWorldAutoUpdate = true;
// Instantiate three's VR Button
const vrButton = VRButton.createButton(view.renderer);
viewerDiv.appendChild(vrButton);
// ---------- DISPLAY ORTHO-IMAGES : ----------
// Add one imagery layer to the scene. This layer's properties are
// defined in a json file, but it could be defined as a plain js
// object. See `Layer` documentation for more info.
itowns.Fetcher.json('./layers/JSONLayers/Ortho.json').then((config) => {
config.source = new itowns.WMTSSource(config.source);
view.addLayer(new itowns.ColorLayer('Ortho', config),
);
});
// ---------- DISPLAY A DIGITAL ELEVATION MODEL : ----------
// Add two elevation layers, each with a different level of detail.
// Here again, each layer's properties are defined in a json file.
function addElevationLayerFromConfig(config) {
config.source = new itowns.WMTSSource(config.source);
view.addLayer(
new itowns.ElevationLayer(config.id, config),
);
}
itowns.Fetcher.json('./layers/JSONLayers/IGN_MNT_HIGHRES.json')
.then(addElevationLayerFromConfig);
itowns.Fetcher.json('./layers/JSONLayers/WORLD_DTM.json')
.then(addElevationLayerFromConfig);
</script>
</body>
</html>