IfcRelAssociatesLibrary

Item	SPF	XML	Change	Description
IFC2x3 to IFC4
IfcRelAssociatesLibrary
OwnerHistory			MODIFIED	Instantiation changed to OPTIONAL.
RelatedObjects	X	X	MODIFIED	Type changed from IfcRoot to IfcDefinitionSelect.

Semantic definitions at the entity

Entity definition

The objectified relationship (IfcRelAssociatesLibrary) handles the assignment of a library item (items of the select IfcLibrarySelect) to subtypes of IfcObjectDefinition or IfcPropertyDefinition.

The relationship is used to assign a library reference or a more detailed link to a library information to objects, property sets or types. A single library reference can be applied to multiple items.

The inherited attribute RelatedObjects define the items to which the library association is applied. The attribute RelatingLibrary is the reference to a library reference, applied to the item(s).

HISTORY New entity in IFC2x.

Attribute definitions

#	Attribute	Type	Cardinality	Description	G
6	RelatingLibrary	IfcLibrarySelect		Reference to a library, from which the definition of the property set is taken.	X

Inherited definitions from supertypes

Entity inheritance

Attribute inheritance

#	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
IfcRelAssociates
5	RelatedObjects	IfcDefinitionSelect	S[1:?]	Set of object or property definitions to which the external references or information is associated. It includes object and type objects, property set templates, property templates and property sets and contexts. IFC4 CHANGE The attribute datatype has been changed from IfcRoot to IfcDefinitionSelect.	X
IfcRelAssociatesLibrary
6	RelatingLibrary	IfcLibrarySelect		Reference to a library, from which the definition of the property set is taken.	X

#	Concept	Template	Model View
IfcRoot
	Identity	Software Identity	General Usage
	Revision Control	Revision Control	General Usage

Formal representations

XML Specification

 <xs:element name="IfcRelAssociatesLibrary" type="ifc:IfcRelAssociatesLibrary" substitutionGroup="ifc:IfcRelAssociates" nillable="true"/>

 <xs:complexType name="IfcRelAssociatesLibrary">

  <xs:complexContent>

   <xs:extension base="ifc:IfcRelAssociates">

    <xs:sequence>

     <xs:element name="RelatingLibrary">

      <xs:complexType>

       <xs:group ref="ifc:IfcLibrarySelect"/>

      </xs:complexType>

     </xs:element>

    </xs:sequence>

   </xs:extension>

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcRelAssociatesLibrary

 SUBTYPE OF (IfcRelAssociates);

  RelatingLibrary : IfcLibrarySelect;

END_ENTITY;

 EXPRESS-G diagram

IfcRelAssociatesLibrary

Semantic definitions at the entity

Inherited definitions from supertypes

Definitions applying to General Usage

Examples

Formal representations

	Ordnet Bibliothek zu - Relation
	Rel Associates Library
	Association à librairie