itowns
Version:
A JS/WebGL framework for 3D geospatial data visualization
151 lines (128 loc) • 6.29 kB
HTML
<html>
<head>
<title>Itowns - 3D Tiles Style Widget </title>
<script type="importmap">
{
"imports": {
"itowns": "../dist/itowns.js",
"debug": "../dist/debug.js",
"dat": "https://unpkg.com/dat.gui@0.7.9/build/dat.gui.module.js",
"GuiTools": "./jsm/GUI/GuiTools.js",
"LoadingScreen": "./jsm/GUI/LoadingScreen.js",
"itowns_widgets": "../dist/itowns_widgets.js",
"three": "https://unpkg.com/three@0.170.0/build/three.module.js",
"three/addons/": "https://unpkg.com/three@0.170.0/examples/jsm/"
}
}
</script>
<meta charset="UTF-8">
<link rel="stylesheet" type="text/css" href="css/example.css">
<link rel="stylesheet" type="text/css" href="css/widgets.css">
<link rel="stylesheet" type="text/css" href="css/LoadingScreen.css">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<div id="viewerDiv" class="viewer"></div>
<script type="module">
import GuiTools from 'GuiTools';
import setupLoadingScreen from 'LoadingScreen';
import * as THREE from 'three';
import * as itowns from 'itowns';
import * as debug from 'debug';
import * as itowns_widgets from 'itowns_widgets';
// Define crs projection that we will use (taken from https://epsg.io/3946, Proj4js section)
itowns.CRS.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
const extent = new itowns.Extent( 'EPSG:3946',
1840816.94334, 1843692.32501,
5175036.4587, 5177412.82698);
// `viewerDiv` will contain iTowns' rendering area (`<canvas>`)
const viewerDiv = document.getElementById('viewerDiv');
// Instanciate PlanarView*
const cameraCoord = new itowns.Coordinates('EPSG:3946', 1841980,
5175682, 3000)
const view = new itowns.PlanarView(viewerDiv, extent, { placement: {
coord: cameraCoord, heading: 30, range: 4000, tilt: 30 } });
setupLoadingScreen(viewerDiv, view);
// Add a WMS imagery source
const wmsImagerySource = new itowns.WMSSource({
extent: extent,
name: 'ortho_latest',
url: 'https://imagerie.data.grandlyon.com/wms/grandlyon',
version: '1.3.0',
crs: 'EPSG:3946',
format: 'image/jpeg',
});
// Add a WMS imagery layer
const wmsImageryLayer = new itowns.ColorLayer('wms_imagery', {
updateStrategy: {
type: itowns.STRATEGY_DICHOTOMY,
options: {},
},
source: wmsImagerySource,
});
view.addLayer(wmsImageryLayer);
// Add a WMS elevation source
const wmsElevationSource = new itowns.WMSSource({
extent: extent,
url: 'https://imagerie.data.grandlyon.com/wms/grandlyon',
name: 'MNT2018_Altitude_2m',
crs: 'EPSG:3946',
width: 256,
format: 'image/jpeg',
});
// Add a WMS elevation layer
const wmsElevationLayer = new itowns.ElevationLayer('wms_elevation', {
useColorTextureElevation: true,
colorTextureElevationMinZ: 144,
colorTextureElevationMaxZ: 622,
source: wmsElevationSource,
});
view.addLayer(wmsElevationLayer);
const $3dTilesLayer = new itowns.C3DTilesLayer(
0, {
name: 'First Lyon Rounding 2018',
source: new itowns.C3DTilesSource({
url: 'https://raw.githubusercontent.com/iTowns/iTowns2-sample-data/master/' +
'3DTiles/lyon1_with_surface_type_2018/tileset.json',
})
}, view);
itowns.View.prototype.addLayer.call(view, $3dTilesLayer);
// Lights
const dirLight = new THREE.DirectionalLight(0xffffff, 1);
dirLight.position.set(-0.9, 0.3, 1);
dirLight.updateMatrixWorld();
view.scene.add( dirLight );
const ambLight = new THREE.AmbientLight(0xffffff, 0.2);
view.scene.add( ambLight );
// Request redraw
view.notifyChange();
// Add 3D Tiles Style Widget
const widget = new itowns_widgets.C3DTilesStyle(view);
widget.domElement.setAttribute('id', 'widgets-3dtilesstyle');
// Add a box3 to C3DTileFeature onclick
const geometry = new THREE.BoxGeometry();
const material = new THREE.MeshBasicMaterial( {color: 0x00ff00, opacity: 0.5, transparent: true} );
const cube = new THREE.Mesh( geometry, material );
view.domElement.onclick = (event) => {
const intersects = view.pickObjectsAt(event, 5, [$3dTilesLayer]);
const c3DTileFeatureClicked = $3dTilesLayer.getC3DTileFeatureFromIntersectsArray(intersects);
if (c3DTileFeatureClicked) {
const worldBox3 = c3DTileFeatureClicked.computeWorldBox3();
cube.scale.copy(worldBox3.max.clone().sub(worldBox3.min));
worldBox3.getCenter(cube.position);
cube.updateMatrixWorld();
view.scene.add(cube);
view.notifyChange();
}
}
// Add a debug UI
const menu = new GuiTools('menuDiv', view);
const d = new debug.Debug(view, menu.gui);
debug.createTileDebugUI(menu.gui, view, view.tileLayer, d);
window.view = view;
window.itowns = itowns;
window.THREE = THREE;
</script>
</body>
</html>