On 18.08.2017 02:30, Clifford Snow wrote:
On Thu, Aug 17, 2017 at 4:12 PM, Javier Sánchez Portero <javiers...@gmail.com
<mailto:javiers...@gmail.com>> wrote:
* In the wiki [1] 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=*.
tom
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