NOTE This entity is not part of a standardized schema subset or implementation level.
ABSTRACT This definition may not be instantiated
126.96.36.199.1 Semantic definition
is used to describe the geometric and topological constraints that facilitate the physical connection of two objects. It is envisioned as a control that applies to the element connection relationships. IfcConnectionGeometry
NOTE The element connection relationship normally provides for a logical connection information, by referencing the relating and related elements. If in addition an is provided, physical connection information is given by specifying exactly where at the relating and related element the element connection occurs. Using the eccentricity subtypes, the connection can also be described when there is a physical distance (or eccentricity) between the connection elements. IfcConnectionGeometry
allows for the provision of connection constraints between geometric and topological elements, the following connection geometry/topology types are in scope: IfcConnectionGeometry
point | vertex point
curve | edge curve
surface | face surface
solid model | closed shell
HISTORY New entity in IFC1.5.
IFC2x3-CHANGE The definition of the subtypes has been enhanced by allowing either geometric representation items (point | curve | surface) or topological representation items with associated geometry (vertex point | edge curve | face surface).
188.8.131.52.2 Entity inheritance
184.108.40.206.4 Formal representation
ABSTRACT SUPERTYPE OF (ONEOF