IfcBoundedSurface

IfcBoundedSurface

Definition from ISO/CD 10303-42:1992: A bounded surface is a surface of finite area with identifiable boundaries.

NOTE Corresponding STEP name: bounded_surface, only the following subtypes have been incorporated into IFC: rectangular_trimmed_surface as IfcRectangularTrimmedSurface. Please refer to ISO/IS 10303-42:1994, p.78 for the final definition of the formal standard.

HISTORY New class in IFC Release 2x

Informal propositions:

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

EXPRESS specification:

ENTITY IfcBoundedSurface

SUPERTYPE OF

(ONEOF(IfcCurveBoundedPlane, IfcRectangularTrimmedSurface))

SUBTYPE OF (

IfcSurface);

END_ENTITY;

References (3):

Name

Type

Referred through

Express-G

IfcCurveBoundedPlane

Entity

Supertype

IfcRectangularTrimmedSurface

Entity

Supertype

Entity

Subtype

Inheritance graph

ENTITY IfcBoundedSurface;

ENTITY IfcRepresentationItem;

ENTITY IfcGeometricRepresentationItem;

ENTITY IfcSurface;

ENTITY IfcBoundedSurface;

END_ENTITY;