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chore(examples): ESMify multiple 2.5D maps
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- Use an importmap to import OrbitControls addon from a CDN
- Refactor this example's script as an ES6 module
- Bump OrbitControls to 0.154.0
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@Desplandis
Desplandis committed Dec 8, 2023
1 parent b82622d commit ac9cea4
Showing 1 changed file with 56 additions and 50 deletions.
106 changes: 56 additions & 50 deletions examples/view_multi_25d.html
View file
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<!DOCTYPE html>
<html>
<head>
<title>Itowns - 6 planes on a cube</title>
Expand All @@ -12,30 +13,29 @@
<div id="viewerDiv"></div>
<script src="../dist/itowns.js"></script>
<script src="js/GUI/LoadingScreen.js"></script>
<script type="text/javascript">
window.THREE = itowns.THREE;

<script type="importmap">
{
"imports": {
"three": "https://unpkg.com/[email protected]/build/three.module.js",
"three/addons/": "https://unpkg.com/[email protected]/examples/jsm/"
}
}
</script>
<script src="https://unpkg.com/[email protected]/examples/js/controls/OrbitControls.js"></script>
<script type="text/javascript">

<script type="module">
// Warning: For now, three is imported twice: in the itowns bundle
// and from the unpkg CDN.
import * as THREE from 'three';
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';

var view;

// Define crs 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');
// # Planar (EPSG:3946) viewer

var extent;
var viewerDiv;
var view;
var controls;
var scale;
var parent;
var index;
var wms;
var wmsUrl;
var obj;
var offset;
var tileLayer;
var config;

var wmsSources = [
const wmsSources = [
{
name: 'fpc_fond_plan_communaut.fpcilot',
url: 'https://download.data.grandlyon.com/wms/grandlyon',
Expand All @@ -62,60 +62,60 @@
},
];

var cubeTransformations = [
const cubeTransformations = [
{
position: new itowns.THREE.Vector3(0, 0, 0.5),
rotation: new itowns.THREE.Euler(),
position: new THREE.Vector3(0, 0, 0.5),
rotation: new THREE.Euler(),
},
{
position: new itowns.THREE.Vector3(0, 0, -0.5),
rotation: new itowns.THREE.Euler().set(Math.PI, 0, 0),
position: new THREE.Vector3(0, 0, -0.5),
rotation: new THREE.Euler().set(Math.PI, 0, 0),
},
{
position: new itowns.THREE.Vector3(0, 0.5, 0),
rotation: new itowns.THREE.Euler().set(-Math.PI * 0.5, 0, 0),
position: new THREE.Vector3(0, 0.5, 0),
rotation: new THREE.Euler().set(-Math.PI * 0.5, 0, 0),
},
{
position: new itowns.THREE.Vector3(0, -0.5, 0),
rotation: new itowns.THREE.Euler().set(Math.PI * 0.5, 0, 0),
position: new THREE.Vector3(0, -0.5, 0),
rotation: new THREE.Euler().set(Math.PI * 0.5, 0, 0),
},
{
position: new itowns.THREE.Vector3(0.5, 0, 0),
rotation: new itowns.THREE.Euler().set(0, Math.PI * 0.5, 0),
position: new THREE.Vector3(0.5, 0, 0),
rotation: new THREE.Euler().set(0, Math.PI * 0.5, 0),
},
{
position: new itowns.THREE.Vector3(-0.5, 0, 0),
rotation: new itowns.THREE.Euler().set(0, -Math.PI * 0.5, 0),
position: new THREE.Vector3(-0.5, 0, 0),
rotation: new THREE.Euler().set(0, -Math.PI * 0.5, 0),
},
];

// Define geographic extent: CRS, min/max X, min/max Y
extent = new itowns.Extent(
const extent = new itowns.Extent(
'EPSG:3946',
1837900, 1837900 + 8000,
5170100, 5170100 + 8000);

// `viewerDiv` will contain iTowns' rendering area (`<canvas>`)
viewerDiv = document.getElementById('viewerDiv');
const viewerDiv = document.getElementById('viewerDiv');

itowns.THREE.Object3D.DEFAULT_UP.set(0, 0, 1);
THREE.Object3D.DEFAULT_UP.set(0, 0, 1);

scale = new itowns.THREE.Vector3(1, 1, 1).divideScalar(extent.planarDimensions().x);
const scale = new THREE.Vector3(1, 1, 1).divideScalar(extent.planarDimensions().x);

// Instanciate View
view = new itowns.View(extent.crs, viewerDiv);
setupLoadingScreen(viewerDiv, view);

view.mainLoop.gfxEngine.renderer.setClearColor(0x999999);

parent = new itowns.THREE.Mesh(
new itowns.THREE.BoxGeometry(8000, 8000, 8000),
new itowns.THREE.MeshBasicMaterial({ color: 0xdddddd }));
const parent = new THREE.Mesh(
new THREE.BoxGeometry(8000, 8000, 8000),
new THREE.MeshBasicMaterial({ color: 0xdddddd }));
parent.scale.copy(scale);
parent.updateMatrixWorld(true);

view.scene.add(parent);
var elevationSource = new itowns.WMSSource({
const elevationSource = new itowns.WMSSource({
extent,
version: '1.3.0',
name: 'MNT2018_Altitude_2m',
Expand All @@ -125,34 +125,34 @@
url: 'https://imagerie.data.grandlyon.com/wms/grandlyon',
});

for (index = 0; index < wmsSources.length; index++) {
wms = wmsSources[index];
obj = new itowns.THREE.Object3D();
offset = extent.center().toVector3().negate().applyEuler(cubeTransformations[index].rotation);
for (let index = 0; index < wmsSources.length; index++) {
const wms = wmsSources[index];
const obj = new THREE.Object3D();
const offset = extent.center().toVector3().negate().applyEuler(cubeTransformations[index].rotation);
offset.add(cubeTransformations[index].position.divide(scale));
obj.position.copy(offset);
obj.rotation.copy(cubeTransformations[index].rotation);
parent.add(obj);
obj.updateMatrixWorld(true);

tileLayer = new itowns.PlanarLayer('planar' + wms.name + index,
const tileLayer = new itowns.PlanarLayer('planar' + wms.name + index,
extent, obj, { disableSkirt: true });

view.addLayer(tileLayer);

var colorSource = new itowns.WMSSource({
const colorSource = new itowns.WMSSource({
url: wms.url,
version: '1.3.0',
name: wms.name,
crs: 'EPSG:3946',
format: 'image/jpeg',
extent,
});
var colorLayer = new itowns.ColorLayer('wms_imagery' + wms.name + index, {
const colorLayer = new itowns.ColorLayer('wms_imagery' + wms.name + index, {
source: colorSource,
});
view.addLayer(colorLayer, tileLayer);
var elevationLayer = new itowns.ElevationLayer('wms_elevation' + wms.name + index, {
const elevationLayer = new itowns.ElevationLayer('wms_elevation' + wms.name + index, {
source: elevationSource,
useColorTextureElevation: true,
colorTextureElevationMinZ: 144,
Expand All @@ -166,14 +166,20 @@
// Position the camera at south-west corner
view.camera3D.position.set(3, 2, 3);
view.camera3D.updateMatrixWorld(true);
view.camera3D.lookAt(new itowns.THREE.Vector3(0, 0, 0));
view.camera3D.lookAt(new THREE.Vector3(0, 0, 0));

controls = new itowns.THREE.OrbitControls(view.camera3D, viewerDiv);
const controls = new OrbitControls(view.camera3D, viewerDiv);
controls.minDistance = 1;
controls.addEventListener('change', function _() { view.notifyChange(view.camera3D); });

// Request redraw
view.notifyChange();


// Warning: the following code is not part of this example, those
// variables are only exposed for internal functional test uses.
window.view = view;

</script>
</body>
</html>

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