IFC 4.3.x development

5.1.3.34 IfcRelConnects

5.1.3.34.1 Semantic definitions at the entity

IfcRelConnects is a connectivity relationship that connects objects under some criteria. As a general connectivity it does not imply constraints, however subtypes of the relationship define the applicable object types for the connectivity relationship and the semantics of the particular connectivity.

HISTORY  New entity in IFC2x.

#Attribute Type Description
IfcRoot
1GlobalId IfcGloballyUniqueId Assignment of a globally unique identifier within the entire software world.
2OwnerHistoryOPTIONAL IfcOwnerHistoryAssignment 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.
3Name 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.
4Description OPTIONAL IfcText Optional description, provided for exchanging informative comments.

5.1.3.34.1 Entity inheritance

dot_inheritance IfcRelConnects_children 15 more... IfcRelConnects IfcRelConnects IfcRelConnects_children->IfcRelConnects IfcRelationship IfcRelationship IfcRelConnects->IfcRelationship IfcRelationship_children 5 more... IfcRelationship_children->IfcRelationship IfcRoot IfcRoot IfcRelationship->IfcRoot IfcObjectDefinition IfcObjectDefinition IfcObjectDefinition->IfcRoot IfcPropertyDefinition IfcPropertyDefinition IfcPropertyDefinition->IfcRoot

5.1.3.34.2 Definitions applying to General Usage

5.1.3.34.2.1 Identity

IfcRoot assigns the globally unique ID. In addition it may provide for a name and a description about the concept.

5.1.3.34.2.2 Revision Control

Ownership, history, and merge state is captured using IfcOwnerHistory.

5.1.3.34.3 Formal representations

ENTITY IfcRelConnects
 ABSTRACT SUPERTYPE OF (ONEOF
	(IfcRelConnectsElements
	,IfcRelConnectsPortToElement
	,IfcRelConnectsPorts
	,IfcRelConnectsStructuralActivity
	,IfcRelConnectsStructuralMember
	,IfcRelContainedInSpatialStructure
	,IfcRelCoversBldgElements
	,IfcRelCoversSpaces
	,IfcRelFillsElement
	,IfcRelFlowControlElements
	,IfcRelInterferesElements
	,IfcRelPositions
	,IfcRelReferencedInSpatialStructure
	,IfcRelSequence
	,IfcRelServicesBuildings
	,IfcRelSpaceBoundary))
 SUBTYPE OF (IfcRelationship);
END_ENTITY;