| Entité | Attributs |
|---|---|
| IfcRepresentationItem | LayerAssignment, StyledByItem |
| IfcSurface | Dim |
| IfcBSplineSurface | UDegree, VDegree, ControlPointsList, SurfaceForm, UClosed, VClosed, SelfIntersect, UUpper, VUpper, ControlPoints |
| IfcBSplineSurfaceWithKnots | UMultiplicities, VMultiplicities, UKnots, VKnots, KnotSpec, KnotVUpper, KnotUUpper |
| Nom | Type |
|---|---|
| WeightsData | IfcReal |
| Weights | IfcReal |