IFC 4.3.2.20250327 (IFC4X3_ADD2) under development

8.9.3.11 IfcBoundedSurface

ABSTRACT This definition may not be instantiated

8.9.3.11.1 Semantic definition

An IfcBoundedSurface is a surface of finite area.

Informal Propositions

  1. A bounded surface has finite non-zero surface area.
  2. A bounded surface has boundary curves.

8.9.3.11.2 Entity inheritance

8.9.3.11.3 Attributes

# Attribute Type Description
IfcRepresentationItem (2)
Click to show 2 hidden inherited attributes
IfcSurface (1)
* Dim IfcDimensionCount

This attribute is formally derived.

3

The space dimensionality of IfcSurface. It is always a three-dimensional geometric representation item.

Table 8.9.3.11.A

8.9.3.11.4 Formal representation

ENTITY IfcBoundedSurface
ABSTRACT SUPERTYPE OF (ONEOF
(IfcBSplineSurface
,IfcCurveBoundedPlane
,IfcCurveBoundedSurface
,IfcRectangularTrimmedSurface))
SUBTYPE OF (IfcSurface);
END_ENTITY;

8.9.3.11.5 References

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8.9.3.11.6 Changelog

8.9.3.11.6.1 IFC4

  • abstract, Is now abstract