 | Verbindet Anschlüsse - Relation |
 | Rel Connects Ports |
 | Connection de ports |
| Item | SPF | XML | Change | Description | IFC2x3 to IFC4 4.0.0.0 |
|---|---|---|---|---|
| IfcRelConnectsPorts | ||||
| OwnerHistory | MODIFIED | Instantiation changed to OPTIONAL. |
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.
HISTORY New entity in IFC2.0, modified in IFC2x.
IFC4 CHANGE Previously the containment of the IfcPort within the IfcDistributionElement had been realized using the IfcRelConnectsPortToElement relationship.
| # | Attribute | Type | Cardinality | Description | G |
|---|---|---|---|---|---|
| 5 | RelatingPort | IfcPort | Reference to the first port that is connected by the objectified relationship. | X | |
| 6 | RelatedPort | IfcPort | Reference to the second port that is connected by the objectified relationship. | X | |
| 7 | RealizingElement | IfcElement | ? | Defines the element that realizes a port connection relationship. | X |
| Rule | Description |
|---|---|
| NoSelfReference | The instance of the RelatingPort shall not be the same instance as the RelatedPort. |
| # | Attribute | Type | Cardinality | Description | G |
|---|---|---|---|---|---|
| IfcRoot | |||||
| 1 | GlobalId | IfcGloballyUniqueId | Assignment of a globally unique identifier within the entire software world. | X | |
| 2 | OwnerHistory | 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. | X |
| 3 | Name | 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. | X |
| 4 | Description | IfcText | ? | Optional description, provided for exchanging informative comments. | X |
| IfcRelationship | |||||
| IfcRelConnects | |||||
| IfcRelConnectsPorts | |||||
| 5 | RelatingPort | IfcPort | Reference to the first port that is connected by the objectified relationship. | X | |
| 6 | RelatedPort | IfcPort | Reference to the second port that is connected by the objectified relationship. | X | |
| 7 | RealizingElement | IfcElement | ? | Defines the element that realizes a port connection relationship. | X |
| # | Concept | Template | Model View |
|---|---|---|---|
| IfcRoot | |||
| Identity | Software Identity | General Usage | |
| Revision Control | Revision Control | General Usage | |
<xs:element name="IfcRelConnectsPorts" type="ifc:IfcRelConnectsPorts" substitutionGroup="ifc:IfcRelConnects" nillable="true"/>
<xs:complexType name="IfcRelConnectsPorts">
<xs:complexContent>
<xs:extension base="ifc:IfcRelConnects">
<xs:sequence>
<xs:element name="RelatingPort" type="ifc:IfcPort" nillable="true"/>
<xs:element name="RelatedPort" type="ifc:IfcPort" nillable="true"/>
<xs:element name="RealizingElement" type="ifc:IfcElement" nillable="true" minOccurs="0"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
ENTITY IfcRelConnectsPorts
SUBTYPE OF (IfcRelConnects);
RelatingPort : IfcPort;
RelatedPort : IfcPort;
RealizingElement : OPTIONAL IfcElement;
WHERE
NoSelfReference : RelatingPort :<>: RelatedPort;
END_ENTITY;
References: IfcPort
EXPRESS-G diagram
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