5.1.2.6 IfcDefinitionSelect

IfcDefinitionSelect provides the option to either select an object or type object IfcObjectDefinition, or a property set template or property set, IfcPropertyDefinition.

HISTORY  New select type in IFC4.

XSD Specification:

 <xs:group name="IfcDefinitionSelect">
  <xs:choice>
   <xs:element ref="ifc:IfcObjectDefinition"/>
   <xs:element ref="ifc:IfcPropertyDefinition"/>
  </xs:choice>
 </xs:group>

EXPRESS Specification:

TYPE IfcDefinitionSelect = SELECT (
IfcObjectDefinition,
IfcPropertyDefinition);
END_TYPE;

Link to EXPRESS-G diagram EXPRESS-G diagram

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