IfcDocumentInformationRelationship

标签：IfcResourceLevelRelationship Name IfcLabel ENTITY IfcDocumentInformationRelation

IfcDocumentInformationRelationship

实体定义

IfcDocumentInformationRelationship是一种关系实体，它使文档能够引用其他文档。它用于描述一个文档可以引用一个或多个其他子文档的关系，或者一个文档用作另一个文档的替换（但原始文档和替换文档都需要保留）。

 

IFC2x中的新实体。

IFC4从IFCRSourceLevel关系更改子类型，属性的顺序已更改。

 

 

 

Attribute inheritance

#	Attribute	Type	Cardinality	Description	C
IfcResourceLevelRelationship
1	Name	IfcLabel	[0:1]	A name used to identify or qualify the relationship.	X
2	Description	IfcText	[0:1]	A description that may apply additional information about the relationship.	X

 

 

 

EXPRESS Specification

ENTITY IfcResourceLevelRelationship
 ABSTRACT SUPERTYPE OF(ONEOF(IfcApprovalRelationship, IfcCurrencyRelationship, IfcDocumentInformationRelationship, IfcExternalReferenceRelationship, IfcMaterialRelationship, IfcOrganizationRelationship, IfcPropertyDependencyRelationship, IfcResourceApprovalRelationship, IfcResourceConstraintRelationship));
  Name : OPTIONAL IfcLabel;
  Description : OPTIONAL IfcText;
END_ENTITY;

 

 

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标签：IfcResourceLevelRelationship,Name,IfcLabel,ENTITY,IfcDocumentInformationRelation
From： https://www.cnblogs.com/herd/p/16609338.html