IfcSpatialReferenceSelect

Natural language names
Change log
ItemSPFXMLChangeDescription
IFC4x2 to IFC4x3_RC1
    IfcSpatialReferenceSelectADDED
IFC4x3_RC2 Update
    IfcSpatialReferenceSelect
      IfcGroupADDED
      IfcSystemDELETED
IFC4x3_RC3 to IFC4x3_RC4
    IfcSpatialReferenceSelectMOVEDSchema changed from IFCSHAREDINFRASTRUCTUREELEMENTS to IFCPRODUCTEXTENSION.
Semantic definitions at the type
Type definition

IfcSpatialReferenceSelect provides the option to either select a group occurrence, IfcGroup (and all relevent subtypes), or a product occurance, IfcProduct. for referencing to a spatial element

HISTORY  New select type in IFC4x3.

 

Select definition
TypeDescription
IfcProduct
IfcGroup
Formal representations
XML Specification
 <xs:group name="IfcSpatialReferenceSelect">
  <xs:choice>
   <xs:element ref="ifc:IfcGroup"/>
   <xs:element ref="ifc:IfcProduct"/>
  </xs:choice>
 </xs:group>
EXPRESS Specification
TYPE IfcSpatialReferenceSelect = SELECT (
 IfcProduct,
 IfcGroup);
END_TYPE;

Link to EXPRESS-G diagram EXPRESS-G diagram

References  References: IfcRelReferencedInSpatialStructure

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