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Building Height Squared

Square the height of every OpenStreetMap building on the GPU and color the 3D buildings by the result.

Live Playground

OpenStreetMap data

This spec reads a pre-downloaded OpenStreetMap extract through pbfFileUrl, so it loads in seconds. Remove pbfFileUrl to query the Overpass API live instead, which can take several minutes because Overpass is rate-limited.

Highlights

  • compute output written to outputColumnName
  • diverging colormap on 3D buildings

This example comes from the autk-grammar repository.

Released under the MIT License.