IfcWellKnownTextLiteral

Semantic definitions at the type

Type definition

A Well Known Text (WKT) literal is a structured textual representation of the definition of a coordinate reference systems according to ISO 19125-1:2004 or ISO 19162:2019.

NOTE Well Known Text can also be used to define textual representation of geometric elements, such as POINT (30 10) according to ISO 13249-3:2016. This kind of content is currently not in scope for this defined type in IFC. HISTORY New type in IFC4X3_ADD1.

Formal representations

XML Specification

 <xs:simpleType name="IfcWellKnownTextLiteral">

  <xs:restriction base="xs:normalizedString"/>

 </xs:simpleType>

EXPRESS Specification


TYPE IfcWellKnownTextLiteral = STRING;
END_TYPE;


 EXPRESS-G diagram