IfcSurfaceOrFaceSurface

Definition from IAI: The 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.

SELECT

- IfcSurface
- IfcFaceSurface
- IfcFaceBasedSurfaceModel (a connected face set, representing a faceted surface as an approximation of a non planar, non rectangular bounded surface)

> HISTORY New select type in IFC2x Edition 3.

EXPRESS specification:

TYPE IfcSurfaceOrFaceSurface = SELECT
( | IfcSurface, IfcFaceSurface, IfcFaceBasedSurfaceModel);
END_TYPE;