8.6.3.8 IfcExternalReferenceRelationship
8.6.3.8.1 Semantic definition
IfcExternalReferenceRelationship is a relationship entity that enables objects from the IfcResourceObjectSelect to have the ability to be tagged by external references.
8.6.3.8.2 Entity inheritance
8.6.3.8.3 Attributes
| # | Attribute | Type | Description |
|---|---|---|---|
| IfcResourceLevelRelationship (2) | |||
| 1 | Name | OPTIONAL IfcLabel |
A name used to identify or qualify the relationship. |
| 2 | Description | OPTIONAL IfcText |
A description that may apply additional information about the relationship. |
| Click to show 2 hidden inherited attributes Click to hide 2 inherited attributes | |||
| IfcExternalReferenceRelationship (2) | |||
| 3 | RelatingReference | IfcExternalReference |
An external reference that can be used to tag an object within the range of IfcResourceObjectSelect. |
| 4 | RelatedResourceObjects | SET [1:?] OF IfcResourceObjectSelect |
Objects within the list of IfcResourceObjectSelect that can be tagged by an external reference to a dictionary, library, catalogue, classification or documentation. |
8.6.3.8.4 Formal representation
ENTITY IfcExternalReferenceRelationship
SUBTYPE OF (IfcResourceLevelRelationship);
RelatingReference : IfcExternalReference;
RelatedResourceObjects : SET [1:?] OF IfcResourceObjectSelect;
END_ENTITY;