Extrude polygons for 3D indoor mapping | UNL Map JS Docs

Create a 3D indoor map with the fill-extrude-height paint property.

Note

If you want to test this example, edit it in JSFiddle or CodePen and replace the "YOUR-OWN-API-KEY" and "YOUR-OWN-VPM-ID" placeholders with your actual api key and vpm id.

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Extrude polygons for 3D indoor mapping</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
<script src="https://unpkg.com/unl-map-js@0.1.5/lib/unl-map-js.js"></script>
<link href="https://unpkg.com/unl-map-js@0.1.5/lib/unl-map-js.css" rel="stylesheet" />
<link
href="https://unpkg.com/maplibre-gl@2.1.9/dist/maplibre-gl.css"
rel="stylesheet"
/>
<style>
	body { margin: 0; padding: 0; }
	#map { position: absolute; top: 0; bottom: 0; width: 100%; }
</style>
</head>
<body>
<div id="map"></div>
<script>
var map = new UnlSdk.Map({
container: "map",
apiKey: "YOUR-OWN-API-KEY",
vpmId: "YOUR-OWN-VPM-ID",
center: [-87.61694, 41.86625],
zoom: 15.99,
pitch: 40,
bearing: 20,
antialias: true,
});
 
map.on("load", function () {
map.addSource("floorplan", {
// GeoJSON Data source used in vector tiles, documented at
// https://gist.github.com/ryanbaumann/a7d970386ce59d11c16278b90dde094d
type: "geojson",
data: "https://u-n-l.github.io/unl-map-js-docs/assets/indoor-3d-map.geojson",
});
map.addLayer({
id: "room-extrusion",
type: "fill-extrusion",
source: "floorplan",
paint: {
// Get the fill-extrusion-color from the source 'color' property.
"fill-extrusion-color": ["get", "color"],
 
// Get fill-extrusion-height from the source 'height' property.
"fill-extrusion-height": ["get", "height"],
 
// Get fill-extrusion-base from the source 'base_height' property.
"fill-extrusion-base": ["get", "base_height"],
 
// Make extrusions slightly opaque for see through indoor walls.
"fill-extrusion-opacity": 0.5,
},
});
});
</script>
 
</body>
</html>