itowns
Version:
A JS/WebGL framework for 3D geospatial data visualization
139 lines (109 loc) • 5.29 kB
HTML
<html>
<head>
<title>Itowns - Navigation widget</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">
<!-- Import stylesheet for itowns Widgets plugin. This stylesheet is included in the bundles if you downloaded
them, or it can be found in `node_modules/itowns/examples/css` if you installed iTowns with npm. Otherwise, it
can be found here : https://raw.githubusercontent.com/iTowns/itowns/master/examples/css/widgets.css -->
<link rel="stylesheet" type="text/css" href="css/widgets.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: 6000,
tilt: 50,
}
// `viewerDiv` contains 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);
const debugMenu = new GuiTools('menuDiv', view);
// ---------- DISPLAY CONTEXTUAL DATA : ----------
// 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((config) => {
config.source = new itowns.WMTSSource(config.source);
view.addLayer(
new itowns.ColorLayer(config.id, config),
).then(debugMenu.addLayerGUI.bind(debugMenu));
});
// 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),
).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);
// ---------- ADD NAVIGATION WIDGET : ----------
const widgets = new itowns_widgets.Navigation(view);
// Example on how to add a new button to the widgets menu
widgets.addButton(
'rotate-up',
'<p style="font-size: 20px">↓</p>',
'rotate camera up',
() => {
view.controls.lookAtCoordinate({
tilt: view.controls.getTilt() - 10,
time: 500,
});
},
'button-bar-rotation',
);
widgets.addButton(
'rotate-down',
'<p style="font-size: 20px">↑</p>',
'rotate camera down',
() => {
view.controls.lookAtCoordinate({
tilt: view.controls.getTilt() + 10,
time: 500,
});
},
'button-bar-rotation',
);
widgets.addButton(
'reset-position',
'↺',
'reset position',
() => { view.controls.lookAtCoordinate(placement) },
);
// ---------- DEBUG TOOLS : ----------
debug.createTileDebugUI(debugMenu.gui, view);
window.view = view;
window.itowns = itowns;
window.THREE = THREE;
</script>
</body>
</html>