itowns
Version:
A JS/WebGL framework for 3D geospatial data visualization
121 lines (93 loc) • 5.12 kB
HTML
<html>
<head>
<title>Itowns - Globe travel</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">
<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">
</head>
<body>
<div id="viewerDiv"></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';
// ---------- CREATE A GlobeView FOR SUPPORTING DATA VISUALIZATION : ----------
// Define camera initial position
const placement = {
coord: new itowns.Coordinates('EPSG:4326', 2.351323, 48.856712),
range: 25000000,
}
// `viewerDiv` will contain iTowns' rendering area (`<canvas>`)
const viewerDiv = document.getElementById('viewerDiv');
// Create a GlobeView
const view = new itowns.GlobeView(viewerDiv, placement);
// Setup loading screen and debug menu
setupLoadingScreen(viewerDiv, view);
// Display a realistic atmosphere
view.getLayerById('atmosphere').setRealisticOn(true);
// ---------- DISPLAY ORTHO-IMAGES : ----------
// Add one imagery layer to the scene. This layer's properties are defined in a json file, but it could be
// defined as a plain js object. See `Layer` documentation for more info.
itowns.Fetcher.json('./layers/JSONLayers/Ortho.json').then(function _(config) {
config.source = new itowns.WMTSSource(config.source);
view.addLayer(
new itowns.ColorLayer('Ortho', config),
);
});
// ---------- DISPLAY A DIGITAL ELEVATION MODEL : ----------
// Add two elevation layers, each with a different level of detail. Here again, 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),
);
}
itowns.Fetcher.json('./layers/JSONLayers/IGN_MNT_HIGHRES.json').then(addElevationLayerFromConfig);
itowns.Fetcher.json('./layers/JSONLayers/WORLD_DTM.json').then(addElevationLayerFromConfig);
// ---------- ANIMATE CAMERA : ----------
const time = 50000;
// Array containing CameraTransformOptions (see
// http://www.itowns-project.org/itowns/docs/#api/Controls/CameraUtils) for each step of the animation.
const pathTravel = [];
pathTravel.push({ coord: new itowns.Coordinates('EPSG:4326', 2.0889, 42.809), range: 100000, time: time * 0.2 });
pathTravel.push({ range: 13932, time: time * 0.2, tilt: 7.59, heading: 110.9 });
pathTravel.push({ tilt: 8, time: time * 0.2 });
pathTravel.push({ range: 70000, time: time * 0.2, tilt: 5, heading: 90 });
pathTravel.push({ coord: new itowns.Coordinates('EPSG:4326', 7.0193, 43.991), tilt: 11.5, heading: 127.211, time: time });
pathTravel.push({ range: 10414, time: time * 0.2 });
pathTravel.push({ tilt: 8, time: time * 0.2 });
pathTravel.push({ range: 60000, heading: -40, time: time * 0.2 });
pathTravel.push({ coord: new itowns.Coordinates('EPSG:4326', 9.114, 41.973), tilt: 15.92, heading: 13.18, time: time });
pathTravel.push({ range: 16601, time: time * 0.2 });
function travel() {
return itowns.CameraUtils
.sequenceAnimationsToLookAtTarget(view, view.camera3D, pathTravel);
}
// Listen for globe full initialisation event
view.addEventListener(itowns.GLOBE_VIEW_EVENTS.GLOBE_INITIALIZED, function init() {
// eslint-disable-next-line no-console
console.info('Globe initialized');
travel().then(travel).catch(console.error);
});
</script>
</body>
</html>