Proposed features/Roof position
|Status:||Draft (under way)|
|Definition:||Notation of roof bottom shapes|
This proposal describes tagging of elements with bottom:shape=*, bottom:height=*, min_heght=* tags for 3D modeling similar to Simple 3D Building Specification.
Some roofs have negative value of the roof:height=* tag. This should be used for 3D modeling:
Some complex openings may be described as a sum of two or more building:part elements with bottom=* elements.
Following example - round opening in the wall is modeled with 2 elements:
Use of bottom:shape=* and bottom:height=* tags for building:part=* elements with bottom surfaces.