itowns
Version:
A JS/WebGL framework for 3D geospatial data visualization
69 lines (58 loc) • 2.89 kB
HTML
<html>
<head>
<title>Itowns - Planar + vector-tiles</title>
<meta charset="UTF-8">
<link rel="stylesheet" type="text/css" href="css/example.css">
<link rel="stylesheet" type="text/css" href="css/noto.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>
<div id="debug" width="400" height="300"></div>
<script src="js/GUI/GuiTools.js"></script>
<script src="../dist/itowns.js"></script>
<script src="../dist/debug.js"></script>
<script src="js/GUI/LoadingScreen.js"></script>
<script>
// # Planar view with one single layer of vector tile
// Define geographic extent: CRS, min/max X, min/max Y
var extent = new itowns.Extent(
'EPSG:3857',
-20037508.342789244, 20037508.342789244,
-20037508.342789255, 20037508.342789244);
// `viewerDiv` will contain iTowns' rendering area (`<canvas>`)
var viewerDiv = document.getElementById('viewerDiv');
// Instanciate PlanarView
var view = new itowns.PlanarView(viewerDiv, extent, {
maxSubdivisionLevel: 20,
controls: {
// We do not want the user to zoom out too much
maxAltitude: 40000000,
// We want to keep the rotation disabled, to only have a view from the top
enableRotation: false,
// Don't zoom too much on smart zoom
smartTravelHeightMax: 100000,
},
});
var menuGlobe = new GuiTools('menuDiv', view, 300);
setupLoadingScreen(viewerDiv, view);
// Defines a VectorTilesSource to load Vector Tiles data from the geoportail
var mvtSource = new itowns.VectorTilesSource({
style: "https://data.geopf.fr/annexes/ressources/vectorTiles/styles/PLAN.IGN/standard.json",
// We don't display mountains related data to ease visualisation
filter: (layer) => !layer['source-layer'].includes('oro_') && !layer['source-layer'].includes('parcellaire'),
});
var mvtLayer = new itowns.ColorLayer('MVT', {
source: mvtSource,
addLabelLayer: { performance: true },
});
view.addLayer(mvtLayer).then(menuGlobe.addLayerGUI.bind(menuGlobe));
// Request redraw
view.notifyChange(true);
debug.createTileDebugUI(menuGlobe.gui, view);
</script>
</body>
</html>