| IfcRationalBSplineSurfaceWithKnots |
| Entité | Attributs |
|---|---|
| IfcRepresentationItem | LayerAssignment, StyledByItem |
| IfcSurface | Dim |
| IfcBSplineSurface | UDegree, VDegree, ControlPointsList, SurfaceForm, UClosed, VClosed, SelfIntersect, UUpper, VUpper, ControlPoints |
| Nom | Type |
|---|---|
| UMultiplicities | IfcInteger |
| VMultiplicities | IfcInteger |
| UKnots | IfcParameterValue |
| VKnots | IfcParameterValue |
| KnotSpec | IfcKnotType |
| KnotVUpper | IfcInteger |
| KnotUUpper | IfcInteger |