IFC 4.3.0.1 (IFC4X3_TC1)

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)
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.

Click to show 2 hidden inherited attributes Click to hide 2 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

8.9.3.11.6 Changelog

8.9.3.11.6.1 IFC4

  • abstract, Is now abstract