3D Buildings

Use extrusions to display buildings' height in 3D.

Based on: https://maplibre.org/maplibre-gl-js/docs/examples/3d-buildings/

<script lang="ts">
  import { MapLibre, FillExtrusionLayer } from 'svelte-maplibre-gl';
</script>

<MapLibre
  class="h-[55vh] min-h-[300px]"
  style="https://basemaps.cartocdn.com/gl/voyager-gl-style/style.json"
  zoom={14.5}
  pitch={70}
  minZoom={14}
  bearing={0}
  center={[-74.01, 40.7075]}
>
  <FillExtrusionLayer
    source="carto"
    sourceLayer="building"
    minzoom={14}
    filter={['!=', ['get', 'hide_3d'], true]}
    paint={{
      'fill-extrusion-color': [
        'interpolate',
        ['linear'],
        ['get', 'render_height'],
        0,
        '#aaccbb',
        200,
        'royalblue',
        400,
        'purple'
      ],
      'fill-extrusion-height': ['interpolate', ['linear'], ['zoom'], 14, 0, 15, ['get', 'render_height']],
      'fill-extrusion-base': ['case', ['>=', ['get', 'zoom'], 14], ['get', 'render_min_height'], 0]
    }}
  />
</MapLibre>
Our examples use Tailwind CSS and shadcn-svelte.