Invalid geometry resulting from touching building parts?

geoflow3d / gfp-building-reconstruction

Geoflow plugin for building LoD2 reconstruction from a point cloud

GNU Affero General Public License v3.0

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Invalid geometry resulting from touching building parts? #33

Open Ylannl opened 3 years ago

Ylannl commented 3 years ago

bag id 0518100000268185

Ylannl commented 3 years ago

Another example:

bag id 0599100010056423, tile 3344

This turns out to be an edge case of a building with a non-manifold edge which splits the building into two parts, but the ground surface is not split correctly and added as a whole to only one of the building parts. The other part does not have a groundsurface.