![]()  | Surface Or Face Surface | 
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.
HISTORY New select type in IFC2x3.
| Constant | Description | 
|---|---|
| IfcSurface | |
| IfcFaceSurface | |
| IfcFaceBasedSurfaceModel | 
 <xs:group name="IfcSurfaceOrFaceSurface">
  <xs:choice>
   <xs:element ref="ifc:IfcFaceBasedSurfaceModel"/>
   <xs:element ref="ifc:IfcFaceSurface"/>
   <xs:element ref="ifc:IfcSurface"/>
  </xs:choice>
 </xs:group>
TYPE IfcSurfaceOrFaceSurface = SELECT (
 IfcSurface, 
 IfcFaceSurface, 
 IfcFaceBasedSurfaceModel);
END_TYPE;