Display features from a WFS source as 3D meshes
import { Color, CubeTextureLoader } from 'three';
import { CSS2DObject } from 'three/examples/jsm/renderers/CSS2DRenderer.js';
import { MapControls } from 'three/examples/jsm/controls/MapControls.js';
import GeoJSON from 'ol/format/GeoJSON.js';
import VectorSource from 'ol/source/Vector.js';
import TileWMS from 'ol/source/TileWMS.js';
import { createXYZ } from 'ol/tilegrid.js';
import { tile } from 'ol/loadingstrategy.js';
import Extent from '@giro3d/giro3d/core/geographic/Extent.js';
import Instance from '@giro3d/giro3d/core/Instance.js';
import ColorLayer from '@giro3d/giro3d/core/layer/ColorLayer.js';
import Inspector from '@giro3d/giro3d/gui/Inspector.js';
import FeatureCollection from '@giro3d/giro3d/entities/FeatureCollection.js';
import Map from '@giro3d/giro3d/entities/Map.js';
import TiledImageSource from '@giro3d/giro3d/sources/TiledImageSource.js';
// Define projection that we will use (taken from https://epsg.io/3946, Proj4js section)
Instance.registerCRS(
'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',
);
// Define a geographic extent: CRS, min/max X, min/max Y
const extent = new Extent('EPSG:3946', 1837816.94334, 1847692.32501, 5170036.4587, 5178412.82698);
// `viewerDiv` will contain Giro3D' rendering area (the canvas element)
const viewerDiv = document.getElementById('viewerDiv');
// Instantiate Giro3D
const instance = new Instance(viewerDiv, { crs: 'EPSG:3946' });
// Adds the map that will contain the layers.
const map = new Map('planar', { extent });
instance.add(map);
// Adds a WMS imagery layer
const olSource = new TileWMS({
url: 'https://data.geopf.fr/wms-r',
projection: 'EPSG:3946',
params: {
LAYERS: ['HR.ORTHOIMAGERY.ORTHOPHOTOS'],
FORMAT: 'image/jpeg',
},
});
const wmsSource = new TiledImageSource({ source: olSource });
const colorLayer = new ColorLayer({
name: 'wms_imagery',
source: wmsSource,
});
map.addLayer(colorLayer);
// define the source of our data
const busLinesSource = new VectorSource({
format: new GeoJSON(),
url: function url(tileExtent) {
return `${
'https://download.data.grandlyon.com/wfs/rdata' +
'?SERVICE=WFS' +
'&VERSION=2.0.0' +
'&request=GetFeature' +
'&typename=tcl_sytral.tcllignebus_2_0_0' +
'&outputFormat=application/json;%20subtype=geojson' +
'&SRSNAME=EPSG:3946' +
'&startIndex=0' +
'&bbox='
}${tileExtent.join(',')},EPSG:3946`;
},
strategy: tile(createXYZ({ tileSize: 512 })),
});
// Create the `FeatureCollection` entity that will load our features as meshes.
const busLines = new FeatureCollection('bus lines', {
source: busLinesSource,
extent,
minLevel: 0,
maxLevel: 0,
elevation: 50,
// we can modify the mesh through the `style` property
style: feat => {
const lineName = feat.getProperties().ligne;
// color according to line name
let color;
if (lineName.startsWith('C')) {
color = new Color('red');
} else if (lineName.startsWith('S')) {
color = new Color('yellow');
} else {
color = new Color('blue');
}
return { color };
},
});
// Let's add our bus lines feature collection to the scene
instance.add(busLines);
// define another source
const busStopSource = new VectorSource({
format: new GeoJSON(),
url: function url(tileExtent) {
return `${
'https://download.data.grandlyon.com/wfs/rdata' +
'?SERVICE=WFS' +
'&VERSION=2.0.0' +
'&request=GetFeature' +
'&typename=tcl_sytral.tclarret' +
'&outputFormat=application/json; subtype=geojson' +
'&SRSNAME=EPSG:3946' +
'&bbox='
}${tileExtent.join(',')},EPSG:3946`;
},
strategy: tile(createXYZ({ tileSize: 512 })),
});
// Create the `FeatureCollection` entity that will load our features as meshes.
const busStops = new FeatureCollection('bus stops', {
source: busStopSource,
extent,
minLevel: 3,
maxLevel: 3,
elevation: 50,
// we can use the `style` callback, but it's also possible to modify the resulting mesh directly
// with the `onMeshCreated` option
onMeshCreated: mesh => {
mesh.material.size = 5;
mesh.material.sizeAttenuation = false;
mesh.material.color = new Color('#ffe44c');
},
});
instance.add(busStops);
// add a skybox background, just to look nicer :-)
const cubeTextureLoader = new CubeTextureLoader();
cubeTextureLoader.setPath('image/skyboxsun25deg_zup/');
const cubeTexture = cubeTextureLoader.load([
'px.jpg',
'nx.jpg',
'py.jpg',
'ny.jpg',
'pz.jpg',
'nz.jpg',
]);
instance.scene.background = cubeTexture;
// Place camera at the bottom left corner of the map
instance.camera.camera3D.position.set(extent.west(), extent.south(), 10000);
// and look at the center of our extent
instance.camera.camera3D.lookAt(extent.centerAsVector3());
// we need to tell Giro3D we changed the camera position
instance.notifyChange(instance.camera.camera3D);
// Creates controls
const controls = new MapControls(instance.camera.camera3D, viewerDiv);
// MapControls needs a target, let's set it at our lookAt position
controls.target = extent.centerAsVector3();
controls.saveState();
controls.enableDamping = true;
controls.dampingFactor = 0.2;
instance.useTHREEControls(controls);
// display labels
const text = document.createElement('div');
text.className = 'label';
// Any CSS style is supported
text.style.color = '#ffffff';
text.style.padding = '0.2em 1em';
text.style.maxWidth = '200px';
text.style.border = '2px solid #cccccc';
text.style.backgroundColor = '#080808';
text.style.textAlign = 'center';
text.style.opacity = 0.7;
const wrapper = document.createElement('div');
wrapper.style.marginTop = '2rem';
wrapper.appendChild(text);
// then wrap it in a CSS2DObject
const label = new CSS2DObject(wrapper);
instance.add(label);
instance.domElement.addEventListener('mousemove', e => {
const found = instance
.pickObjectsAt(e, {
radius: 2,
limit: 1,
where: [busStops, busLines],
})
.at(0);
if (found) {
const obj = found.object;
if (found.entity === busStops) {
text.innerText = `Bus stop "${obj.userData.properties.nom}"`;
} else if (found.entity === busLines) {
text.innerText = `Bus line ${obj.userData.properties.ligne}`;
}
// Virtually any inner markup is supported, here we're just inserting text
label.name = text.innerText;
// take the middle vertex as position
label.position.set(found.point.x, found.point.y, found.point.z);
label.updateMatrixWorld();
label.visible = true;
instance.notifyChange(label);
} else {
label.visible = false;
instance.notifyChange(label);
}
});
Inspector.attach(document.getElementById('panelDiv'), instance);
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Giro3D - WFS as 3D meshes</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-T3c6CoIi6uLrA9TneNEoa7RxnatzjcDSCmG1MXxSR1GAsXEV/Dwwykc2MPK8M2HN" crossorigin="anonymous">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-C6RzsynM9kWDrMNeT87bh95OGNyZPhcTNXj1NW7RuBCsyN/o0jlpcV8Qyq46cDfL" crossorigin="anonymous"></script>
<style>
body {
padding: 0;
margin: 0;
width: 100vw;
height: 100vh;
}
#viewerDiv {
width: 100%;
height: 100%;
}
#panelDiv {
position: absolute;
top: 0;
left: 0;
}
</style>
</head>
<body>
<div id="viewerDiv"></div>
<div id="panelDiv"></div>
<script type="module" src="index.js"></script>
<script>
/* activate popovers */
const popoverTriggerList = [].slice.call(document.querySelectorAll('[data-bs-toggle="popover"]'));
popoverTriggerList.map(
// bootstrap is used as script in the template, disable warning about undef
// eslint-disable-next-line no-undef
popoverTriggerEl => new bootstrap.Popover(popoverTriggerEl, {
trigger: 'hover',
placement: 'left',
content: document.getElementById(popoverTriggerEl.getAttribute('data-bs-content')).innerHTML,
html: true,
}),
);
</script>
</body>
</html>
{
"name": "wfs_mesh",
"dependencies": {
"@giro3d/giro3d": "0.35.0"
},
"devDependencies": {
"vite": "^3.2.3"
},
"scripts": {
"start": "vite",
"build": "vite build"
}
}