District coverage calculation basically working.
District coverage calculation basically working.

thomaskonrad/osm_austria_building_coverage,thomaskonrad/osm-austria-building-coverage,thomaskonrad/osm_austria_building_coverage,thomaskonrad/osm_austria_building_coverage,thomaskonrad/osm-austria-building-coverage,thomaskonrad/osm_austria_building_coverage,thomaskonrad/osm-austria-building-coverage,thomaskonrad/osm-austria-building-coverage