8.9.2.15 IfcVectorOrDirection
8.9.2.15.1 Semantic definition
The IfcVectorOrDirection enables a choice between IfcVector and IfcDirection for vector functions.
8.9.2.15.2 Type values
8.9.2.15.3 Formal representation
TYPE IfcVectorOrDirection = SELECT (IfcDirection ,IfcVector); END_TYPE;