IfcConnectionSurfaceGeometry

Definition from IAI: The IfcConnectionSurfaceGeometry is used to describe the geometric constraints that facilitate the physical connection of two objects at a surface or at a face with surface geometry associated. It is envisioned as a control that applies to the element connection relationships.

> HISTORY New entity in IFC Release 2x.
> IFC2x Edition 3 CHANGE The provision of topology with associated geometry, IfcFaceSurface, is enabled by using the IfcSurfaceOrFaceSurface.

Geometry Use Definitions:

The IfcSurface (or the IfcFaceSurface with an associated IfcSurface) at the SurfaceOnRelatingElement attribute defines the surface where the basic geometry items of the connected elements connects. The surface geometry and coordinates are provided within the local coordinate system of the RelatingElement, as specified at the IfcRelConnectsSubtype that utilizes the IfcConnectionSurfaceGeometry. Optionally, the same surface geometry and coordinates can also be provided within the local coordinate system of the RelatedElement by using the SurfaceOnRelatedElement attribute.

EXPRESS specification:

ENTITY IfcConnectionSurfaceGeometry
SUBTYPE OF ( | IfcConnectionGeometry);
SurfaceOnRelatingElement | : | IfcSurfaceOrFaceSurface;
SurfaceOnRelatedElement | : | OPTIONAL IfcSurfaceOrFaceSurface;
END_ENTITY;

Attribute definitions:

SurfaceOnRelatingElement | : | Surface at which related object is aligned at the relating element, given in the LCS of the relating element.
SurfaceOnRelatedElement | : | Surface at which the relating element is aligned at the related element, given in the LCS of the related element. If the information is omitted, then the origin of the related element is used.

Inheritance graph

ENTITY IfcConnectionSurfaceGeometry;
ENTITY IfcConnectionGeometry;
ENTITY IfcConnectionSurfaceGeometry;
SurfaceOnRelatingElement | : | IfcSurfaceOrFaceSurface;
SurfaceOnRelatedElement | : | OPTIONAL IfcSurfaceOrFaceSurface;
END_ENTITY;