| IfcBoundedSurface, IfcElementarySurface, IfcSweptSurface |
| Entité | Attributs |
|---|---|
| IfcRepresentationItem | LayerAssignments, StyledByItem |
| Entité | Liste d'attributs |
|---|---|
| IfcFaceSurface | FaceSurface |
| IfcHalfSpaceSolid | BaseSurface |
| IfcPointOnSurface | BasisSurface |
| IfcRectangularTrimmedSurface | BasisSurface |
| IfcSurfaceCurveSweptAreaSolid | ReferenceSurface |