Census Tract/Ward [on hold]
Table of contents
One Census Ward
Starting with a clean slate osm3Ddistricts_param.json will download a country-level.osm.pbf, extract a region via osmconvert and a .poly to generate a LoD1 City Model for one census ward / tract with 2550 buildings:levels tagged: runtime: 1:34:21.201458
Similarly (country-level.osm.pbf to region via osmconvert and a .poly) districts interactiveOnly.ipynb will produce a dynamic .html.
Many Census Wards with many raster DEM
osm3DdistrictsKaya_param.json combines the 12 adjacent census wards / tracts of Khayelitsha along with the mosaic, clip and reprojection of 2 raster DEM.
The param.json will use an existing .osm.pbf (the extract.osm.pbf created in the previous, One Census Ward, example: "CapeTown-extract.osm.pbf"). runtime is at 0:08:00.895749 due to the low number of building:level tags (57 buildings).
With the same rationale; interactiveOnlyMany.ipynb will reuse an -extract.osm.pbf and harvest more than one adjacent boundary=administrative.
Extra
Its possible to trim a different region from the same country-level.osm.pbf (as One Census Ward) with a different .poly. osm3DdistrictsTshwane_param.json. runtime: 0:06:20.492880 to produce a LoD1 City Model of one census ward / tract; 32 buildings:levels tagged in another part of a country.