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:

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

EXPRESS specification:

ENTITY IfcBoundedSurface
SUPERTYPE OF | (ONEOF(IfcCurveBoundedPlane, IfcRectangularTrimmedSurface))
SUBTYPE OF ( | IfcSurface);
END_ENTITY;

Inheritance graph

ENTITY IfcBoundedSurface;
ENTITY IfcRepresentationItem;
INVERSE
LayerAssignments | : | SET OF IfcPresentationLayerAssignment FOR AssignedItems;
StyledByItem | : | SET [0:1] OF IfcStyledItem FOR Item;
ENTITY IfcGeometricRepresentationItem;
ENTITY IfcSurface;
ENTITY IfcBoundedSurface;
END_ENTITY;