IFC 4.3.0.1 (IFC4X3_TC1)

8.9.3.40 IfcOffsetCurve

ABSTRACT This definition may not be instantiated

8.9.3.40.1 Semantic definition

An IfcOffsetCurve is an abstract entity describing a curve that is defined relative to another curve according to an offset that may be constant or variable along the referenced curve.

8.9.3.40.2 Entity inheritance

8.9.3.40.3 Attributes

# Attribute Type Description
IfcRepresentationItem (2)
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.

IfcCurve (1)
* Dim IfcDimensionCount

This attribute is formally derived.

IfcCurveDim(SELF)

The space dimensionality of this abstract class, defined differently for all subtypes, i.e. for IfcLine, IfcConic and IfcBoundedCurve.

Click to show 3 hidden inherited attributes Click to hide 3 inherited attributes
IfcOffsetCurve (1)
1 BasisCurve IfcCurve

The curve that is being offset.

Table 8.9.3.40.A

8.9.3.40.4 Formal representation

ENTITY IfcOffsetCurve
 ABSTRACT SUPERTYPE OF (ONEOF
	(IfcOffsetCurve2D
	,IfcOffsetCurve3D
	,IfcOffsetCurveByDistances))
 SUBTYPE OF (IfcCurve);
	BasisCurve : IfcCurve;
END_ENTITY;

8.9.3.40.5 References

8.9.3.40.6 Changelog

8.9.3.40.6.1 IFC4.3_TC1

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