IfcLibrarySelect

Natural language names
enLibrary Select
frSélection de bibliothèque
Semantic definitions at the type
Type definition

The IfcLibrarySelect enables selection of whether library information is to be contained within an IFC model or is to be referenced from an external source.

It is expected that selection will be IfcLibraryReference and only rarely IfcLibraryInformation. IfcLibraryInformation should only be selected in circumstances where there could be a need to indicate the libraries that will be used without making individual references. This may occur for higher level objects such as a IfcProject or IfcBuilding.
HISTORY  New select type in IFC2x
Enumeration definition
ConstantDescription
IfcLibraryReference
IfcLibraryInformation
Formal representations
XSD Specification
 <xs:group name="IfcLibrarySelect">
  <xs:choice>
   <xs:element ref="ifc:IfcLibraryInformation"/>
   <xs:element ref="ifc:IfcLibraryReference"/>
  </xs:choice>
 </xs:group>
EXPRESS Specification
TYPE IfcLibrarySelect = SELECT (
 IfcLibraryReference,
 IfcLibraryInformation);
END_TYPE;

Link to EXPRESS-G diagram EXPRESS-G diagram

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