itowns
Version:
A JS/WebGL framework for 3D geospatial data visualization
116 lines (99 loc) • 4.59 kB
HTML
<html>
<head>
<title>Itowns - Planar 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="description">
Key bindings
<ul>
<li>Left-Click: camera translation (drag)</li>
<li>Right-Click: camera translation (pan)</li>
<li>Ctrl + Left-Click: camera rotation (orbit)</li>
<li>Spacebar / Wheel-Click: smart zoom</li>
<li>Mouse Wheel: zoom in/out</li>
<li>T: orient camera to a top view</li>
<li>Y: move camera to start position</li>
</ul>
</div>
<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 type="text/javascript">
// Define 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');
/* global itowns, setupLoadingScreen, GuiTools, debug */
// # Planar (EPSG:3946) viewer
var extent;
var viewerDiv;
var view;
var p;
var menuGlobe;
var d;
// Define geographic extent: CRS, min/max X, min/max Y
extent = new itowns.Extent(
'EPSG:3946',
1837816.94334, 1847692.32501,
5170036.4587, 5178412.82698);
// `viewerDiv` will contain iTowns' rendering area (`<canvas>`)
viewerDiv = document.getElementById('viewerDiv');
// Instanciate PlanarView*
view = new itowns.PlanarView(viewerDiv, extent, { disableSkirt: true });
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',
projection: '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',
projection: 'EPSG:3946',
width: 256,
format: 'image/jpeg',
});
// Add a WMS elevation layer
var wmsElevationLayer = new itowns.ElevationLayer('wms_elevation', {
useColorTextureElevation: true,
colorTextureElevationMinZ: 37,
colorTextureElevationMaxZ: 240,
source: wmsElevationSource,
});
view.addLayer(wmsElevationLayer);
p = { coord: extent.center(), heading: -49.6, range: 6200, tilt: 17 };
itowns.CameraUtils.transformCameraToLookAtTarget(view, view.camera.camera3D, p);
// instanciate controls
// eslint-disable-next-line no-new
new itowns.PlanarControls(view, {});
// Request redraw
view.notifyChange();
if (view.isDebugMode) {
menuGlobe = new GuiTools('menuDiv', view);
menuGlobe.addImageryLayersGUI(view.getLayers(function gui(l) { return l.isColorLayer; }));
menuGlobe.addElevationLayerGUI(wmsElevationLayer);
debug.createTileDebugUI(menuGlobe.gui, view);
}
</script>
</body>
</html>