| Entité | Attributs |
|---|---|
| IfcRepresentationItem | LayerAssignment, StyledByItem |
| IfcCurve | Dim |
| IfcBSplineCurve | Degree, ControlPointsList, CurveForm, ClosedCurve, SelfIntersect, UpperIndexOnControlPoints, ControlPoints |
| IfcBSplineCurveWithKnots | KnotMultiplicities, Knots, KnotSpec, UpperIndexOnKnots |
| Nom | Type |
|---|---|
| WeightsData | IfcReal |
| Weights | IfcReal |