IFC 4.3.1.0 (IFC4X3_ADD1) development

8.18.3.21 IfcWellKnownText

8.18.3.21.1 Semantic 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.

8.18.3.21.2 Entity inheritance

8.18.3.21.3 Attributes

# Attribute Type Description
IfcWellKnownText (2)
1 WellKnownText IfcWellKnownTextLiteral

The WKT literal this entity encapsulates.

2 CoordinateReferenceSystem IfcCoordinateReferenceSystem

The IfcCoordinateReferenceSystem for which this the WKT definition is provided.

Table 8.18.3.21.A

8.18.3.21.4 Formal representation

ENTITY IfcWellKnownText;
	WellKnownText : IfcWellKnownTextLiteral;
	CoordinateReferenceSystem : IfcCoordinateReferenceSystem;
END_ENTITY;

8.18.3.21.5 References

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8.18.3.21.6 Changelog

8.18.3.21.6.1 IFC4.3_DEV_9f90c1f0

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