itowns
Version:
A JS/WebGL framework for 3D geospatial data visualization
123 lines (92 loc) • 4.51 kB
HTML
<html>
<head>
<title>Itowns - collada</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">
<link rel="stylesheet" type="text/css" href="css/LoadingScreen.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/dat-gui/0.7.6/dat.gui.min.js"></script>
</head>
<body>
<div id="viewerDiv"></div>
<!-- Import iTowns source code -->
<script src="../dist/itowns.js"></script>
<script src="../dist/debug.js"></script>
<!-- Import iTowns LoadingScreen and GuiTools plugins -->
<script src="js/GUI/GuiTools.js"></script>
<script src="js/GUI/LoadingScreen.js"></script>
<script type="importmap">
{
"imports": {
"three": "https://cdn.jsdelivr.net/npm/three@0.170.0/build/three.module.js",
"three/addons/": "https://cdn.jsdelivr.net/npm/three@0.170.0/examples/jsm/"
}
}
</script>
<script type="module">
// Warning: For now, three is imported twice: in the itowns bundle
// and from the unpkg CDN.
import * as THREE from 'three';
import { ColladaLoader } from 'three/addons/loaders/ColladaLoader.js';
// ---------- CREATE A GlobeView FOR SUPPORTING DATA VISUALIZATION : ----------
// Define camera initial position
const placement = {
coord: new itowns.Coordinates('EPSG:4326', 4.21655, 44.84415),
range: 500,
heading: 180,
tilt: 60,
};
// `viewerDiv` will contain iTowns' rendering area (`<canvas>`)
const viewerDiv = document.getElementById('viewerDiv');
// Create a GlobeView
const view = new itowns.GlobeView(viewerDiv, placement);
// Setup loading screen and debug menu
setupLoadingScreen(viewerDiv, view);
const debugMenu = new GuiTools('menuDiv', view);
// ---------- DISPLAY CONTEXTUAL DATA : ----------
// Display ortho-images
itowns.Fetcher.json('./layers/JSONLayers/Ortho.json')
.then(function _(config) {
config.source = new itowns.WMTSSource(config.source);
view.addLayer(
new itowns.ColorLayer('Ortho', config),
).then(debugMenu.addLayerGUI.bind(debugMenu));
});
// Display elevation data
function addElevationLayerFromConfig(config) {
config.source = new itowns.WMTSSource(config.source);
view.addLayer(
new itowns.ElevationLayer(config.id, config),
).then(debugMenu.addLayerGUI.bind(debugMenu));
}
itowns.Fetcher.json('./layers/JSONLayers/IGN_MNT_HIGHRES.json')
.then(addElevationLayerFromConfig);
itowns.Fetcher.json('./layers/JSONLayers/WORLD_DTM.json')
.then(addElevationLayerFromConfig);
// ---------- DISPLAY COLLADA DATA : ----------
const url = 'https://raw.githubusercontent.com/iTowns/iTowns2-sample-data/master/models/collada/building.dae';
const loader = new ColladaLoader();
loader.load(url, function (collada) {
const model = collada.scene;
// building coordinate
const coord = new itowns.Coordinates(
'EPSG:4326', 4.2165, 44.844, 1417,
);
model.position.copy(coord.as(view.referenceCrs));
// align up vector with geodesic normal
model.lookAt(model.position.clone().add(coord.geodesicNormal));
// user rotate building to align with ortho image
model.rotateZ(-Math.PI * 0.2);
model.scale.set(1.2, 1.2, 1.2);
// update coordinate of the mesh
model.updateMatrixWorld();
view.scene.add(model);
view.notifyChange();
});
// Warning: the following code is not part of this example, those
// variables are only exposed for internal functional test uses.
window.view = view;
</script>
</body>
</html>