itowns
Version:
A JS/WebGL framework for 3D geospatial data visualization
95 lines (77 loc) • 4.46 kB
HTML
<html>
<head>
<title>Itowns - collada</title>
<meta charset="UTF-8">
<link rel="stylesheet" type="text/css" href="css/example.css">
<link rel="stylesheet" type="text/css" href="css/LoadingScreen.css">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script src="https://cdnjs.cloudflare.com/ajax/libs/dat-gui/0.7.6/dat.gui.min.js"></script>
</head>
<body>
<div id="viewerDiv"></div>
<script src="js/GUI/GuiTools.js"></script>
<script src="../dist/itowns.js"></script>
<script src="js/ThreeLoader.js"></script>
<script src="js/GUI/LoadingScreen.js"></script>
<script src="../dist/debug.js"></script>
<script type="text/javascript">
// # Simple Globe viewer
// Define initial camera position
// Coordinate can be found on https://www.geoportail.gouv.fr/carte
// setting is "coordonnée geographiques en degres decimaux"
// Position near Gerbier mountain.
var positionOnGlobe = { longitude: 4.21655, latitude: 44.84415, altitude: 2000 };
// `viewerDiv` will contain iTowns' rendering area (`<canvas>`)
var viewerDiv = document.getElementById('viewerDiv');
// Instanciate iTowns GlobeView*
var view = new itowns.GlobeView(viewerDiv, positionOnGlobe);
var menuGlobe = new GuiTools('menuDiv', view);
setupLoadingScreen(viewerDiv, view);
function addLayerCb(layer) {
view.addLayer(layer).then(menuGlobe.addLayerGUI.bind(menuGlobe));
}
// Add one imagery layer to the scene
// This layer is defined in a json file but it could be defined as a plain js
// object. See Layer* for more info.
itowns.Fetcher.json('./layers/JSONLayers/Ortho.json').then(function _(config) {
config.source = new itowns.WMTSSource(config.source);
var layer = new itowns.ColorLayer(config.id, config);
view.addLayer(layer).then(menuGlobe.addLayerGUI.bind(menuGlobe));
});
// Add two elevation layers.
// These will deform iTowns globe geometry to represent terrain elevation.
function addElevationLayerFromConfig(config) {
config.source = new itowns.WMTSSource(config.source);
var layer = new itowns.ElevationLayer(config.id, config);
view.addLayer(layer).then(menuGlobe.addLayerGUI.bind(menuGlobe));
}
itowns.Fetcher.json('./layers/JSONLayers/WORLD_DTM.json').then(addElevationLayerFromConfig);
itowns.Fetcher.json('./layers/JSONLayers/IGN_MNT_HIGHRES.json').then(addElevationLayerFromConfig);
// ThreeLoader can load each format proposed in ThreeJs examples loaders : https://github.com/mrdoob/three.js/tree/dev/examples/js/loaders
var promiseCollada = ThreeLoader.load('Collada', 'https://raw.githubusercontent.com/iTowns/iTowns2-sample-data/master/models/collada/building.dae')
.then(collada => {
var model = collada.scene;
// building coordinate
var coord = new itowns.Coordinates('EPSG:4326', 4.2165, 44.844, 1417);
var colladaID = view.mainLoop.gfxEngine.getUniqueThreejsLayer();
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);
// set camera's layer to do not disturb the picking
model.traverse(function _(obj) { obj.layers.set(colladaID); });
view.camera.camera3D.layers.enable(colladaID);
// update coordinate of the mesh
model.updateMatrixWorld();
view.scene.add(model);
view.notifyChange();
});
// Listen for globe full initialisation event
view.addEventListener(itowns.GLOBE_VIEW_EVENTS.GLOBE_INITIALIZED, function init() {
view.controls.lookAtCoordinate({ heading: 180, tilt: 60 });
});
</script>
</body>
</html>