christophKaiser

Thanks. I already have the code changes - just have to do a little bit of cosmetics and put them into nice commits.

Commit aae0c68 is only an optional suggestion from my side. At the end of the setup process, probably not everyone takes a detailed look into the Doyxgen guidelines.

## Trimming of IfcFaceSurface, respectively IfcAdvancedFace ### About IfcFaceSurface and IfcAdvancedFace According to buildingSmart [[1]](https://standards.buildingsmart.org/IFC/RELEASE/IFC4_1/FINAL/HTML/link/ifcfacesurface.htm), the `IfcFaceSurface` is an entity which connects the topology of a face with its geometry....