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8.9.3.43 IfcOuterBoundaryCurve

8.9.3.43.1 Semantic definition

The IfcOuterBoundaryCurve defines the outer boundary of a bounded surface.

8.9.3.43.2 Entity inheritance

8.9.3.43.3 Attributes

# Attribute Type Description
IfcRepresentationItem (2)
IfcCurve (1)
IfcCompositeCurve (4)
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IfcCompositeCurveOnSurface (1)
* BasisSurface SET [0:1] OF IfcSurface

This attribute is formally derived.

IfcGetBasisSurface(SELF)

The surface on which the composite curve is defined.

Table 8.9.3.43.A

8.9.3.43.4 Formal representation

ENTITY IfcOuterBoundaryCurve
SUBTYPE OF (IfcBoundaryCurve);
END_ENTITY;

8.9.3.43.5 References

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8.9.3.43.6 Changelog

8.9.3.43.6.1 IFC4

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