[Tagging] Simplify building:part areas
t.pfeifer at computer.org
Fri Aug 18 08:01:38 UTC 2017
On 18.08.2017 02:30, Clifford Snow wrote:
> On Thu, Aug 17, 2017 at 4:12 PM, Javier Sánchez Portero <javiersanp at gmail.com
> <mailto:javiersanp at gmail.com>> wrote:
> * In the wiki  says that the outline should be tagged with building:levels and height, but
> this, if the parts cover the whole outline, is a duplication since these tags will always be in
> some of the parts. Could I delete the part(s) whose labels match those of the outline?
> If you use a multipolygon, then the multipolygon would contain the levels and height.
The building outline represents the "footprint" of the building on the ground, and provides all
non-3D properties such as building type (e.g. building=apartments), address, overall height, etc.
Thus it provides backward compatibility for a data consumer who does not want to evaluate building:part.
If e.g. the lower floors of the apartment building is wider than the upper floors, you can tag the
outline with both, building=apartments and building:part=yes and the appropriate 3D-properties, and
the narrower upper floors with building:part=yes and 3D-properties, but without building=*.
More information about the Tagging