Illustrates the use of layers partially overlapping their parent Map.
import TileWMS from 'ol/source/TileWMS.js';
import { MapControls } from 'three/examples/jsm/controls/MapControls.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 TiledImageSource from '@giro3d/giro3d/sources/TiledImageSource.js';
import ElevationLayer from '@giro3d/giro3d/core/layer/ElevationLayer.js';
import BilFormat from '@giro3d/giro3d/formats/BilFormat.js';
import Map from '@giro3d/giro3d/entities/Map.js';
import Inspector from '@giro3d/giro3d/gui/Inspector.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',
);
// 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, hillshading: true, backgroundColor: 'white' });
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',
},
}),
});
// Define a smaller extent for the layer.
const layerExtent = extent.withMargin(-1000, -1000);
const colorLayer = new ColorLayer({
name: 'wms_imagery',
source: colorSource,
extent: layerExtent,
});
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);
// 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);
<!doctype html>
<html lang="en">
<head>
<title>Partial layers</title>
<meta charset="UTF-8" />
<meta name="name" content="partial_layer" />
<meta name="description" content="Illustrates the use of layers partially overlapping their parent Map." />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="icon" href="https://giro3d.org/images/favicon.svg" />
<link href="https://giro3d.org/assets/bootstrap-custom.css" rel="stylesheet" />
<script src="https://giro3d.org/assets/bootstrap.bundle.min.js"></script>
<link
rel="stylesheet"
type="text/css"
href="https://giro3d.org/latest/css/example.css"
/>
</head>
<body>
<div id="viewerDiv" class="m-0 p-0 w-100 h-100"></div>
<div id="panelDiv" class="position-absolute top-0 start-0 mh-100 overflow-auto"></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": "partial_layer",
"dependencies": {
"@giro3d/giro3d": "0.38.5"
},
"devDependencies": {
"vite": "^3.2.3"
},
"scripts": {
"start": "vite",
"build": "vite build"
}
}