itowns
Version:
A JS/WebGL framework for 3D geospatial data visualization
121 lines (102 loc) • 5.03 kB
HTML
<html>
<head>
<title>Itowns - 3D Tiles on 2.5D map example</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" class="viewer"></div>
<script src="../dist/itowns.js"></script>
<script src="js/GUI/LoadingScreen.js"></script>
<script src="../dist/debug.js"></script>
<script src="js/GUI/GuiTools.js"></script>
<script src="js/3dTilesHelper.js"></script>
<script type="text/javascript">
// Define crs projection that we will use (taken from https://epsg.io/3946, Proj4js section)
itowns.proj4.defs('EPSG:3946', '+proj=lcc +lat_1=45.25 +lat_2=46.75 +lat_0=46 +lon_0=3 +x_0=1700000 +y_0=5200000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs');
// Define geographic extent: CRS, min/max X, min/max Y
var extent = new itowns.Extent( 'EPSG:3946',
1837816.94334, 1847692.32501,
5170036.4587, 5178412.82698);
// `viewerDiv` will contain iTowns' rendering area (`<canvas>`)
var viewerDiv = document.getElementById('viewerDiv');
// Instanciate PlanarView*
var cameraCoord = new itowns.Coordinates('EPSG:3946', 1841980,
5175682, 3000)
var view = new itowns.PlanarView(viewerDiv, extent, { placement: {
coord: cameraCoord, heading: 30, range: 4000, tilt: 30 } });
setupLoadingScreen(viewerDiv, view);
// Add a WMS imagery source
var wmsImagerySource = new itowns.WMSSource({
extent: extent,
name: 'Ortho2009_vue_ensemble_16cm_CC46',
url: 'https://download.data.grandlyon.com/wms/grandlyon',
version: '1.3.0',
crs: 'EPSG:3946',
format: 'image/jpeg',
});
// Add a WMS imagery layer
var wmsImageryLayer = new itowns.ColorLayer('wms_imagery', {
updateStrategy: {
type: itowns.STRATEGY_DICHOTOMY,
options: {},
},
source: wmsImagerySource,
});
view.addLayer(wmsImageryLayer);
// Add a WMS elevation source
var wmsElevationSource = new itowns.WMSSource({
extent: extent,
url: 'https://download.data.grandlyon.com/wms/grandlyon',
name: 'MNT2012_Altitude_10m_CC46',
crs: 'EPSG:3946',
width: 256,
format: 'image/jpeg',
});
// Add a WMS elevation layer
var wmsElevationLayer = new itowns.ElevationLayer('wms_elevation', {
useColorTextureElevation: true,
colorTextureElevationMinZ: 144,
colorTextureElevationMaxZ: 622,
source: wmsElevationSource,
});
view.addLayer(wmsElevationLayer);
// Add 3D Tiles layer
// This 3D Tiles tileset uses the draco compression that is an
// extension of gltf. We need to enable it.
itowns.enableDracoLoader('./libs/draco/');
var $3dTilesLayer = new itowns.C3DTilesLayer(
'3d-tiles-layer-building', {
name: 'Lyon-2015-building',
source: new itowns.C3DTilesSource({
url:
'http://rict.liris.cnrs.fr/DataStore/Lyon1er-2015/tileset.json',
}),
}, view);
// Lights
var dirLight = new itowns.THREE.DirectionalLight(0xffffff, 1);
dirLight.position.set(-0.9, 0.3, 1);
dirLight.updateMatrixWorld();
view.scene.add( dirLight );
var ambLight = new itowns.THREE.AmbientLight(0xffffff, 0.2);
view.scene.add( ambLight );
// Pick 3D Tiles features when hovering them with the mouse and
// display their semantic information in an html div
var pickingArgs = {};
pickingArgs.htmlDiv = document.getElementById('featureInfo');
pickingArgs.view = view;
pickingArgs.layer = $3dTilesLayer;
itowns.View.prototype.addLayer.call(view, $3dTilesLayer);
// Request redraw
view.notifyChange();
// Add a debug UI
var menu = new GuiTools('menuDiv', view);
var d = new debug.Debug(view, menu.gui);
debug.createTileDebugUI(menu.gui, view, view.tileLayer, d);
debug.create3dTilesDebugUI(menu.gui, view, $3dTilesLayer, d);
</script>
</body>
</html>