Information
?Some informations embedded in the vector data
Display vector data (KML, GeoJSON, GPX, GML) using the native Giro3D loaders.
Some informations embedded in the vector data
import {
Fill, Stroke, Style, RegularShape,
} from 'ol/style.js';
import TileWMS from 'ol/source/TileWMS.js';
import GPX from 'ol/format/GPX.js';
import KML from 'ol/format/KML.js';
import GeoJSON from 'ol/format/GeoJSON.js';
import GML32 from 'ol/format/GML32.js';
import { MapControls } from 'three/examples/jsm/controls/MapControls.js';
import BilFormat from '@giro3d/giro3d/formats/BilFormat.js';
import Extent from '@giro3d/giro3d/core/geographic/Extent.js';
import Instance from '@giro3d/giro3d/core/Instance.js';
import TiledImageSource from '@giro3d/giro3d/sources/TiledImageSource.js';
import ColorLayer from '@giro3d/giro3d/core/layer/ColorLayer.js';
import ElevationLayer from '@giro3d/giro3d/core/layer/ElevationLayer.js';
import Map from '@giro3d/giro3d/entities/Map.js';
import Inspector from '@giro3d/giro3d/gui/Inspector.js';
import VectorSource from '@giro3d/giro3d/sources/VectorSource.js';
// # Planar (EPSG:3946) viewer
// Defines 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');
Instance.registerCRS('EPSG:4171', '+proj=longlat +ellps=GRS80 +no_defs +type=crs');
// Defines 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');
// Creates the Giro3D instance
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 colorSource = new TiledImageSource({
source: new TileWMS({
url: 'https://data.geopf.fr/wms-r',
projection: 'EPSG:3946',
params: {
LAYERS: ['HR.ORTHOIMAGERY.ORTHOPHOTOS'],
FORMAT: 'image/jpeg',
},
}),
});
const colorLayer = new ColorLayer({
name: 'wms_imagery',
extent,
source: colorSource,
});
map.addLayer(colorLayer);
// Adds a WMS elevation layer
const elevationSource = new TiledImageSource({
source: new TileWMS({
url: 'https://data.geopf.fr/wms-r',
projection: 'EPSG:3946',
crossOrigin: 'anonymous',
params: {
LAYERS: ['ELEVATION.ELEVATIONGRIDCOVERAGE.HIGHRES'],
FORMAT: 'image/x-bil;bits=32',
},
}),
format: new BilFormat(),
noDataValue: -1000,
});
const elevationLayer = new ElevationLayer({
name: 'wms_elevation',
extent,
source: elevationSource,
});
map.addLayer(elevationLayer);
// Adds our first layer from a geojson file
// Initial source: https://data.grandlyon.com/jeux-de-donnees/parcs-places-jardins-indice-canopee-metropole-lyon/info
const geoJsonLayer = new ColorLayer({
name: 'geojson',
source: new VectorSource({
data: 'https://3d.oslandia.com/lyon/evg_esp_veg.evgparcindiccanope_latest.geojson',
// Defines the dataProjection to reproject the data,
// GeoJSON specifications say that the crs should be EPSG:4326 but
// here we are using a different one.
dataProjection: 'EPSG:4171',
format: new GeoJSON(),
style: feature => new Style({
fill: new Fill({
color: `rgba(0, 128, 0, ${feature.get('indiccanop')})`,
}),
stroke: new Stroke({
color: 'white',
}),
}),
}),
});
map.addLayer(geoJsonLayer);
// Adds a second vector layer from a gpx file
const gpxLayer = new ColorLayer({
name: 'gpx',
source: new VectorSource({
data: 'https://3d.oslandia.com/lyon/track.gpx',
// Defines the dataProjection to reproject the data,
// KML and GPX specifications say that the crs is EPSG:4326.
dataProjection: 'EPSG:4326',
format: new GPX(),
style: new Style({
stroke: new Stroke({
color: '#FA8C22',
width: 2,
}),
}),
}),
});
map.addLayer(gpxLayer);
// Adds a third source from a KML file
// Initial source: https://data.grandlyon.com/jeux-de-donnees/lignes-metro-funiculaire-reseau-transports-commun-lyonnais-v2/info
// Edited for convering to KML+adding proper colors
const kmlLayer = new ColorLayer({
name: 'kml',
source: new VectorSource({
data: 'https://3d.oslandia.com/lyon/tcl_sytral.tcllignemf_2_0_0.kml',
dataProjection: 'EPSG:3946',
format: new KML(),
// With KML format, there is not necessary to specify style rules,
// there are already present in the file.
}),
});
map.addLayer(kmlLayer);
// Adds our fourth layer from a gml file
// Initial source: https://data.grandlyon.com/jeux-de-donnees/bornes-fontaine-metropole-lyon/info
// Edited for having a simple GML FeatureCollection
const gmlLayer = new ColorLayer({
name: 'gml',
source: new VectorSource({
data: 'https://3d.oslandia.com/lyon/adr_voie_lieu.adrbornefontaine_latest.gml',
dataProjection: 'EPSG:4171',
format: new GML32(),
style: (feature, resolution) => {
const meters = 1 / resolution; // Assuming pixel ratio is 1
// We want to display a 5*5m square, except
// for when we're too far away, use a 2*2px square
const size = Math.max(5 * meters, 2);
return new Style({
image: new RegularShape({
radius: size,
points: 4,
stroke: new Stroke({
width: 1,
color: [255, 255, 255, 1],
}),
fill: new Fill({
color: [0, 0, 128, 1],
}),
}),
});
},
}),
});
map.addLayer(gmlLayer);
// Sets the camera position
instance.camera.camera3D.position.set(extent.west(), extent.south(), 2000);
// Creates controls
const controls = new MapControls(instance.camera.camera3D, instance.domElement);
// Then looks at extent's center
controls.target = extent.centerAsVector3();
controls.saveState();
controls.enableDamping = true;
controls.dampingFactor = 0.2;
controls.maxPolarAngle = Math.PI / 2.3;
instance.useTHREEControls(controls);
Inspector.attach(document.getElementById('panelDiv'), instance);
const resultTable = document.getElementById('results');
instance.domElement.addEventListener('mousemove', e => {
const pickedObject = instance.pickObjectsAt(e, {
radius: 5,
limit: 1,
pickFeatures: true,
sortByDistance: true,
}).at(0);
resultTable.innerHTML = '';
if (pickedObject?.features && pickedObject.features.length > 0) {
for (const { layer, feature } of pickedObject.features) {
const layerName = layer.name;
const featureName = feature.get('nom') ?? feature.get('name') ?? feature.get('gid');
resultTable.innerHTML += `${layerName}: ${featureName}<br>`;
}
}
});
// Bind events
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Giro3D - Native Vector Data</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>
<div class="p-2 position-absolute top-0 end-0 col-2" style="min-height: 9rem">
<div class="card">
<h5 class="card-header">Information</h5>
<!-- tooltip -->
<span class="badge bg-secondary position-absolute top-0 end-0 m-2" data-bs-toggle="popover"
data-bs-content="pickingHelper">?</span>
<p class="card-text d-none" id="pickingHelper">Some informations embedded in the vector data</p>
<div class="card-body overflow-auto">
<!-- Result table -->
<div id="results"></div>
</div>
</div>
</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": "planar_vector",
"dependencies": {
"@giro3d/giro3d": "0.34.2"
},
"devDependencies": {
"vite": "^3.2.3"
},
"scripts": {
"start": "vite",
"build": "vite build"
}
}