IFC (IFC4X3_ADD1) IfcRelConnectsPorts Semantic definition

An IfcRelConnectsPorts relationship defines the relationship that is made between two ports at their point of connection. It may include the connection geometry between two ports.

The objectified relationship IfcRelConnectsPorts is required for defining how two instances of IfcPort connect together. Each of the ports is logically contained within the IfcDistributionElement by using the ordered collection IfcRelNests. Entity inheritance Attributes

# Attribute Type Description
IfcRoot (4)
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,

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.

Click to show 4 hidden inherited attributes Click to hide 4 inherited attributes
IfcRelConnectsPorts (3)
5 RelatingPort IfcPort

Reference to the first port that is connected by the objectified relationship.

6 RelatedPort IfcPort

Reference to the second port that is connected by the objectified relationship.

7 RealizingElement OPTIONAL IfcElement

Defines the element that realizes a port connection relationship.

Table Formal propositions

Name Description

The instance of the RelatingPort shall not be the same instance as the RelatedPort.

RelatingPort :<>: RelatedPort
Table Concept usage

Concept Usage Description
IfcRoot (2)
Revision Control General

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

Software Identity General

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

Click to show 2 hidden inherited concepts Click to hide 2 inherited concepts
Table Formal representation

ENTITY IfcRelConnectsPorts
 SUBTYPE OF (IfcRelConnects);
	RelatingPort : IfcPort;
	RelatedPort : IfcPort;
	RealizingElement : OPTIONAL IfcElement;
	NoSelfReference : RelatingPort :<>: RelatedPort;
END_ENTITY; References Changelog IFC4

  • where rule, NoSelfReference