Display multiple maps that share the same layer.
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 Map from '@giro3d/giro3d/entities/Map.js';
import Inspector from '@giro3d/giro3d/gui/Inspector.js';
import StadiaMaps from 'ol/source/StadiaMaps.js';
import TiledImageSource from '@giro3d/giro3d/sources/TiledImageSource.js';
// Defines geographic extent: CRS, min/max X, min/max Y
const extent = new Extent(
'EPSG:3857',
-20037508.342789244,
20037508.342789244,
-20037508.342789244,
20037508.342789244,
);
// `viewerDiv` will contain Giro3D' rendering area (the canvas element)
const viewerDiv = document.getElementById('viewerDiv');
// Creates a Giro3D instance
const instance = new Instance(viewerDiv, {
crs: extent.crs(),
renderer: {
clearColor: 0x0a3b59,
},
});
// Adds an TMS imagery layer
const layer = new ColorLayer({
name: 'osm',
source: new TiledImageSource({
source: new StadiaMaps({ layer: 'stamen_watercolor', wrapX: false }),
}),
});
let index = 0;
const promises = [];
for (const ex of extent.split(8, 8)) {
const mapExtent = ex.withRelativeMargin(-0.05);
// Creates a map that will contain the layer
const map = new Map(`planar ${index++}`, { extent: mapExtent });
instance.add(map);
const promise = map.addLayer(layer).catch(e => console.error(e));
promises.push(promise);
}
Promise.allSettled(promises).then(() => {
// Instanciates camera
instance.camera.camera3D.position.set(0, 0, 25000000);
// Instanciates controls
const controls = new MapControls(instance.camera.camera3D, instance.domElement);
instance.useTHREEControls(controls);
Inspector.attach(document.getElementById('panelDiv'), instance);
});
<!doctype html>
<html lang="en">
<head>
<title>Share layer between maps</title>
<meta charset="UTF-8" />
<meta name="name" content="share_layers_between_maps" />
<meta name="description" content="Display multiple maps that share the same layer." />
<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": "share_layers_between_maps",
"dependencies": {
"@giro3d/giro3d": "0.37.3"
},
"devDependencies": {
"vite": "^3.2.3"
},
"scripts": {
"start": "vite",
"build": "vite build"
}
}