8.7.2.8 IfcSurfaceOrFaceSurface
8.7.2.8.1 Semantic definition
IfcSurfaceOrFaceSurface provides the option to either select a geometric surface (IfcSurface and subtypes) within a geometric model, or a face with associated surface geometry and coordinates (IfcFaceSurface) within a topological model.
8.7.2.8.2 Type values
8.7.2.8.3 Formal representation
TYPE IfcSurfaceOrFaceSurface = SELECT
(IfcFaceBasedSurfaceModel
,IfcFaceSurface
,IfcSurface);
END_TYPE;