ABSTRACT This definition may not be instantiated
An IfcCurve is a curve in two-dimensional or three-dimensional space. It includes definitions for bounded and unbounded curves.
- A curve shall be arcwise connected
- A curve shall have an arc length greater than zero.
|LayerAssignment||SET [0:1] OF IfcPresentationLayerAssignment FOR AssignedItems||
Assignment of the representation item to a single or multiple layer(s). The LayerAssignments can override a LayerAssignments of the IfcRepresentation it is used within the list of Items.
|StyledByItem||SET [0:1] OF IfcStyledItem FOR Item||
Reference to the IfcStyledItem that provides presentation information to the representation, e.g. a curve style, including colour and thickness to a geometric curve.
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This attribute is formally derived.
ENTITY IfcCurve ABSTRACT SUPERTYPE OF (ONEOF (IfcBoundedCurve ,IfcConic ,IfcLine ,IfcOffsetCurve ,IfcPcurve ,IfcPolynomialCurve ,IfcSpiral ,IfcSurfaceCurve)) SUBTYPE OF (IfcGeometricRepresentationItem); DERIVE Dim : IfcDimensionCount := IfcCurveDim(SELF); END_ENTITY;