International Organization for Standardization

ISO 16739-1:2024(E)

4.2.1 Coordinate Reference System in WKT

The following diagram shows the generic classes and relationships used when applying this concept.

G IfcCoordinateReferenceSystem IfcCoordinateReferenceSystem CRSName 1. Name [0:1] 2. Description [0:1] 3. GeodeticDatum [0:1]      HasCoordinateOperation [0:1] HasWKTDescription      WellKnownText [0:1] IfcWellKnownText IfcWellKnownText WKTLiteral 1. WellKnownText [1:1] 2. CoordinateReferenceSystem [1:1] IfcCoordinateReferenceSystem:WellKnownText1->IfcWellKnownText:CoordinateReferenceSystem0 IfcLabel_0 IfcLabel IfcCoordinateReferenceSystem:Name1->IfcLabel_0:IfcLabel0 IfcWellKnownTextLiteral_0 IfcWellKnownTextLiteral IfcWellKnownText:WellKnownText1->IfcWellKnownTextLiteral_0:IfcWellKnownTextLiteral0 constraint_0 ='WKT' IfcLabel_0->constraint_0
Figure 4.2.1.A