datamap

Join: Buildings and Noise

Count noise complaints within 1000 meters of each OpenStreetMap building and color the 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

• near join with a distance
• joining onto an OSM layer table

This example comes from the autk-grammar repository.