An IfcOffsetCurve3D is a curve defined by an offset in 3D space from its BasisCurve.
- At no point on the curve shall ref direction be parallel, or opposite to, the direction of the tangent vector.
|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.
This attribute is formally derived.
The curve that is being offset.
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The distance of the offset curve from the basis curve. The distance may be positive, negative or zero.
An indication of whether the offset curve self-intersects, this is for information only.
The direction used to define the direction of the offset curve 3d from the basis curve.
The underlying curve shall be defined in three-dimensional space.
ENTITY IfcOffsetCurve3D SUBTYPE OF (IfcOffsetCurve); Distance : IfcLengthMeasure; SelfIntersect : IfcLogical; RefDirection : IfcDirection; WHERE DimIs2D : BasisCurve.Dim = 3; END_ENTITY;