IfcRelDefinesByTemplate

Natural language names
Definiert durch Vorlage - Relation
Rel Defines By Template
Définition par modèle
Change log
ItemSPFXMLChangeDescription
IFC2x3 to IFC4 4.0.0.0
    IfcRelDefinesByTemplateADDED
IFC2x3 to IFC4 4.0.0.0
    IfcRelDefinesByTemplateADDED
Semantic definitions at the entity
Entity definition

The objectified relationship IfcRelDefinesByTemplate defines the relationships between property set template and property sets. Common information about property sets, e.g. the applicable name, description, contained properties, is defined by the property set template and assigned to all property sets.

NOTE  The assignment of an IfcPropertySetTemplate is supported for IfcPropertySet and IfcQuantitySet.

The IfcRelDefinesByTemplate is a 1-to-N relationship, as it allows for the assignment of one property set template to a single or to many property sets or quantity sets. Those property sets then share the same property set template definition.

HISTORY  New entity in IFC4.

Attribute definitions
#AttributeTypeCardinalityDescription G
5RelatedPropertySetsIfcPropertySetDefinitionS[1:?] One or many property sets or quantity sets that obtain their definitions from the single property set template. X
6RelatingTemplateIfcPropertySetTemplate Property set template that provides the common definition of related property sets. X
Inherited definitions from supertypes
Entity inheritance IfcRelDefines IfcRelationship IfcRoot
Attribute inheritance
#AttributeTypeCardinalityDescriptionG
IfcRoot
1GlobalIdIfcGloballyUniqueId Assignment of a globally unique identifier within the entire software world. X
2OwnerHistoryIfcOwnerHistory? 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
3NameIfcLabel? 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
4DescriptionIfcText? Optional description, provided for exchanging informative comments. X
IfcRelationship
IfcRelDefines
IfcRelDefinesByTemplate
5RelatedPropertySetsIfcPropertySetDefinitionS[1:?] One or many property sets or quantity sets that obtain their definitions from the single property set template. X
6RelatingTemplateIfcPropertySetTemplate Property set template that provides the common definition of related property sets. X
Definitions applying to General Usage

Concept inheritance

#ConceptTemplateModel View
IfcRoot
IdentitySoftware IdentityGeneral Usage
Revision ControlRevision ControlGeneral Usage
Formal representations
XML Specification
 <xs:element name="IfcRelDefinesByTemplate" type="ifc:IfcRelDefinesByTemplate" substitutionGroup="ifc:IfcRelDefines" nillable="true"/>
 <xs:complexType name="IfcRelDefinesByTemplate">
  <xs:complexContent>
   <xs:extension base="ifc:IfcRelDefines">
    <xs:sequence>
     <xs:element name="RelatedPropertySets">
      <xs:complexType>
       <xs:sequence>
        <xs:element ref="ifc:IfcPropertySetDefinition" maxOccurs="unbounded"/>
       </xs:sequence>
       <xs:attribute ref="ifc:itemType" fixed="ifc:IfcPropertySetDefinition"/>
       <xs:attribute ref="ifc:cType" fixed="set"/>
       <xs:attribute ref="ifc:arraySize" use="optional"/>
      </xs:complexType>
     </xs:element>
     <xs:element name="RelatingTemplate" type="ifc:IfcPropertySetTemplate" nillable="true"/>
    </xs:sequence>
   </xs:extension>
  </xs:complexContent>
 </xs:complexType>
EXPRESS Specification
ENTITY IfcRelDefinesByTemplate
 SUBTYPE OF (IfcRelDefines);
  RelatedPropertySets : SET [1:?] OF IfcPropertySetDefinition;
  RelatingTemplate : IfcPropertySetTemplate;
END_ENTITY;

Link to EXPRESS-G diagram EXPRESS-G diagram

References  References: IfcPropertySetDefinition IfcPropertySetTemplate

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