The IfcRelConnectsElements objectified relationship provides the generalization of the connectivity between elements. It is a 1 to 1 relationship. The concept of two elements being physically or logically connected is described independently from the connecting elements. The connectivity may be related to the shape representation of the connected entities by providing a connection geometry.
HISTORY New entity in IFC1.0.
|1||GlobalId||IfcGloballyUniqueId||Assignment of a globally unique identifier within the entire software world.|
|2||OwnerHistory||OPTIONAL IfcOwnerHistory||Assignment of the information about the current ownership of that object, including owning actor, application, local identification and information captured about the recent changes of the object, |
> NOTE only the last modification in stored - either as addition, deletion or modification.
> IFC4 CHANGE The attribute has been changed to be OPTIONAL.
|3||Name||OPTIONAL IfcLabel||Optional name for use by the participating software systems or users. For some subtypes of IfcRoot the insertion of the Name attribute may be required. This would be enforced by a where rule.|
|4||Description||OPTIONAL IfcText||Optional description, provided for exchanging informative comments.|
|5||ConnectionGeometry||OPTIONAL IfcConnectionGeometry||The geometric shape representation of the connection geometry that is provided in the object coordinate system of the RelatingElement (mandatory) and in the object coordinate system of the RelatedElement (optionally).|
|6||RelatingElement||IfcElement||Reference to a subtype of IfcElement that is connected by the connection relationship in the role of RelatingElement.|
|7||RelatedElement||IfcElement||Reference to a subtype of IfcElement that is connected by the connection relationship in the role of RelatedElement.|
IfcRoot assigns the globally unique ID. In addition it may provide for a name and a description about the concept.
Ownership, history, and merge state is captured using IfcOwnerHistory.
ENTITY IfcRelConnectsElements SUPERTYPE OF (ONEOF (IfcRelConnectsPathElements ,IfcRelConnectsWithRealizingElements)) SUBTYPE OF (IfcRelConnects); ConnectionGeometry : OPTIONAL IfcConnectionGeometry; RelatingElement : IfcElement; RelatedElement : IfcElement; WHERE NoSelfReference : RelatingElement :<>: RelatedElement; END_ENTITY;