itowns
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A JS/WebGL framework for 3D geospatial data visualization
156 lines (123 loc) • 6.62 kB
HTML
<html>
<head>
<title>Itowns - Globe + vector-tiles 3d</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">
<link rel="stylesheet" type="text/css" href="css/widgets.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="text/javascript">
// ---------- CREATE A GlobeView FOR SUPPORTING DATA VISUALIZATION : ----------
// Define camera initial position
const placement = {
coord: new itowns.Coordinates('EPSG:4326', 2.351323, 48.856712),
range: 5000,
tilt: 45,
};
// `viewerDiv` will contain iTowns' rendering area (`<canvas>`)
const viewerDiv = document.getElementById('viewerDiv');
// Create a GlobeView
const view = new itowns.GlobeView(viewerDiv, placement);
// Define poles texture
view.tileLayer.noTextureColor = new itowns.THREE.Color(0x95c1e1);
// Disable atmosphere lighting
view.getLayerById('atmosphere').visible = false;
view.getLayerById('atmosphere').fog.enable = false;
// Setup loading screen and debug menu
setupLoadingScreen(viewerDiv, view);
const debugMenu = new GuiTools('menuDiv', view, 300);
// ---------- DISPLAY CONTEXTUAL DATA : ----------
// Add two elevation layers, each with a different level of detail. 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))
.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 ORTHO-IMAGES : ----------
const ortho = itowns.Fetcher.json('./layers/JSONLayers/Ortho.json').then(function _(config) {
config.source = new itowns.WMTSSource(config.source);
var layer = new itowns.ColorLayer('Ortho', config);
return view.addLayer(layer);
});
// ---------- DISPLAY VECTOR TILED MAP DATA AS A ColorLayer : ----------
// Define the source of the ColorLayer data : a vector tiled map from the geoportail.
const mapSource = new itowns.VectorTilesSource({
style: "https://data.geopf.fr/annexes/ressources/vectorTiles/styles/PLAN.IGN/standard.json",
// We don't display mountains and parcels related data to ease visualisation. Also, we don't display
// buildings related data as it will be displayed in another Layer.
filter: (layer) => {
return !layer['source-layer'].includes('bati_surf')
&& !layer['source-layer'].includes('oro_')
&& !layer['source-layer'].includes('routier_ponc')
&& !layer['source-layer'].includes('parcellaire')
}
});
// Create a ColorLayer to support map data.
const mapLayer = new itowns.ColorLayer('MVT', {
source: mapSource,
effect_type: itowns.colorLayerEffects.removeLightColor,
effect_parameter: 2.5,
addLabelLayer: { performance: true },
style: {
text: {
color: '#000000',
haloColor: '#ffffff',
haloWidth: 3,
haloBlur: 2,
}
},
});
// Add the ColorLayer to the scene and to the debug menu.
view.addLayer(mapLayer)
.then(debugMenu.addLayerGUI.bind(debugMenu));
// ---------- DISPLAY VECTOR TILED BUILDING DATA AS 3D MESHES : ----------
// Define the source of the building data : those are vector tiled data from the geoportail.
const buildingsSource = new itowns.VectorTilesSource({
style: "https://data.geopf.fr/annexes/ressources/vectorTiles/styles/PLAN.IGN/standard.json",
// We only want to display buildings related data.
filter: (layer) => {
return layer['source-layer'].includes('bati_surf')
&& layer.paint["fill-color"];
},
});
// Create a FeatureGeometryLayer to support building data.
var buildingsLayer = new itowns.FeatureGeometryLayer('VTBuilding',{
source: buildingsSource,
zoom: { min: 15 },
accurate: false,
style: {
fill: {
base_altitude: (p) => p.alti_sol || 0,
extrusion_height: (p) => p.hauteur || 0,
}
},
});
// Add the FeatureGeometryLayer to the scene and to the debug menu.
view.addLayer(buildingsLayer)
.then((layer) => {
const gui = debug.GeometryDebug.createGeometryDebugUI(debugMenu.gui, view, layer);
debug.GeometryDebug.addWireFrameCheckbox(gui, view, layer);
})
// ---------- DEBUG TOOLS : ----------
debug.createTileDebugUI(debugMenu.gui, view);
view.addEventListener(itowns.GLOBE_VIEW_EVENTS.GLOBE_INITIALIZED, function () {
ortho.then(function () {
itowns.ColorLayersOrdering.moveLayerToIndex(view, 'Ortho', 0);
}).catch(console.error);
});
</script>
</body>
</html>