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IfcVectorOrDirection

Definition from ISO/CD 10303-42:1992: This type is used to identify the types of entity which can participate in vector computations.

NOTE Corresponding STEP type: vector_or_direction, please refer to ISO/IS 10303-42:1994, p. 20 for the final definition of the formal standard.
HISTORY New Type in IFC Release 1.5

EXPRESS specification:

TYPE IfcVectorOrDirection = SELECT
( IfcDirection,
IfcVector);
END_TYPE;