IfcPropertySetDefinitionSelect

Item	SPF	XML	Change	Description
IFC2x3 to IFC4
IfcPropertySetDefinitionSelect			ADDED

Semantic definitions at the type

Type definition

The purpose of this select type is enabling th assignment of a set of IfcPropertySet's using the relationship IfcRelDefinesByProperties relationship in addition to a single IfcPropertySet.

NOTE The sole purpose of this select type is to enable an upward compatible enhancement of the objectified relationship IfcRelDefinesByProperties in order to assign multiple IfcPropertySet's, IfcElementQuantity's or other subtypes of IfcPropertySetDefinition to objects using a single instance of IfcRelDefinesByProperties.

HISTORY New select type in IFC4.

Enumeration definition

Constant	Description
IfcPropertySetDefinitionSet
IfcPropertySetDefinition

Formal representations

XSD Specification

 <xs:group name="IfcPropertySetDefinitionSelect">

  <xs:choice>

   <xs:element ref="ifc:IfcPropertySetDefinition"/>

   <xs:element ref="ifc:IfcPropertySetDefinitionSet-wrapper"/>

  </xs:choice>

 </xs:group>

EXPRESS Specification


TYPE IfcPropertySetDefinitionSelect = SELECT (

 IfcPropertySetDefinitionSet, 
 IfcPropertySetDefinition);
END_TYPE;


 EXPRESS-G diagram