itowns
Version:
A JS/WebGL framework for 3D geospatial data visualization
150 lines (130 loc) • 6.43 kB
HTML
<html>
<head>
<title>Itowns - Globe + color layers from vector data</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",
"FeatureToolTip": "./jsm/plugins/FeatureToolTip.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/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';
import FeatureToolTip from 'FeatureToolTip';
// # Simple Globe viewer
/* global itowns, setupLoadingScreen, GuiTools, ToolTip */
// Define initial camera position
var placement = {
coord: new itowns.Coordinates('EPSG:4326', 3.5, 44),
range: 1000000,
}
// `viewerDiv` will contain iTowns' rendering area (`<canvas>`)
var viewerDiv = document.getElementById('viewerDiv');
// Instanciate iTowns GlobeView*
var view = new itowns.GlobeView(viewerDiv, placement);
var menuGlobe = new GuiTools('menuDiv', view);
setupLoadingScreen(viewerDiv, view);
FeatureToolTip.init(viewerDiv, view);
// Add one imagery layer to the scene
// This layer is defined in a json file but it could be defined as a plain js
// object. See Layer* for more info.
itowns.Fetcher.json('./layers/JSONLayers/Ortho.json').then(function _(config) {
config.source = new itowns.WMTSSource(config.source);
var layer = new itowns.ColorLayer('Ortho', config);
view.addLayer(layer).then(function _() {
menuGlobe.addLayerGUI.bind(menuGlobe);
itowns.ColorLayersOrdering.moveLayerToIndex(view, 'Ortho', 0);
});
});
// Add two elevation layers.
// These will deform iTowns globe geometry to represent terrain elevation.
function addElevationLayerFromConfig(config) {
config.source = new itowns.WMTSSource(config.source);
var layer = new itowns.ElevationLayer(config.id, config);
view.addLayer(layer).then(menuGlobe.addLayerGUI.bind(menuGlobe));
}
itowns.Fetcher.json('./layers/JSONLayers/IGN_MNT_HIGHRES.json').then(addElevationLayerFromConfig);
itowns.Fetcher.json('./layers/JSONLayers/WORLD_DTM.json').then(addElevationLayerFromConfig);
// Display the content of two GeoJSON files on terrain with ColorLayer and FileSource.
// The GeoJSONs are loaded from url, set in FileSource
// Declare the source for the data on Ariege area
const ariegeSource = new itowns.FileSource({
url: 'https://raw.githubusercontent.com/gregoiredavid/france-geojson/master/departements/09-ariege/departement-09-ariege.geojson',
crs: 'EPSG:4326',
format: 'application/json',
});
// Create a ColorLayer for the Ariege area
const ariegeLayer = new itowns.ColorLayer('ariege', {
name: 'ariege',
transparent: true,
source: ariegeSource,
style: {
fill: {
color: 'orange',
opacity: 0.5,
},
stroke: {
color: 'white',
},
},
});
// Add the Ariege ColorLayer to the view and grant it a tooltip
view.addLayer(ariegeLayer).then(FeatureToolTip.addLayer);
// Declare the source for the data on Pyrenees Orientales area
const pyoSource = new itowns.FileSource({
url: 'https://raw.githubusercontent.com/gregoiredavid/france-geojson/master/departements/66-pyrenees-orientales/departement-66-pyrenees-orientales.geojson',
crs: 'EPSG:4326',
format: 'application/json',
});
// Create a ColorLayer for the Pyrenees Orientales area
const pyoLayer = new itowns.ColorLayer('pyrenees-orientales', {
name: 'pyrenees-orientales',
transparent: true,
source: pyoSource,
style: {
fill: {
pattern: {
source: 'images/cross.png',
},
opacity: 0.8,
},
stroke: {
color:'IndianRed',
},
},
});
// Add The Pyrennees Orientales ColorLayer to the view and grant it a tooltip
view.addLayer(pyoLayer).then(FeatureToolTip.addLayer);
// Center the camera on the data extents
view.addEventListener(itowns.GLOBE_VIEW_EVENTS.GLOBE_INITIALIZED, function () {
const layersExtent = ariegeSource.extent.clone();
layersExtent.union(pyoSource.extent);
view.controls.lookAtCoordinate(layersExtent, false);
});
debug.createTileDebugUI(menuGlobe.gui, view);
window.view = view;
window.itowns = itowns;
window.THREE = THREE;
</script>
</body>
</html>