| IfcOuterBoundaryCurve |
| Entité | Attributs |
|---|---|
| IfcRepresentationItem | LayerAssignment, StyledByItem |
| IfcCurve | Dim |
| IfcCompositeCurve | Segments, SelfIntersect, NSegments, ClosedCurve |
| IfcCompositeCurveOnSurface | BasisSurface |
| Entité | Liste d'attributs |
|---|---|
| IfcCurveBoundedSurface | Boundaries |