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IfcDirectionSenseEnum

Definition from IAI: Enumeration denoting whether sense of direction is positive or negative along the given axis.

ENUMERATION
Positive
Negative

HISTORY New Enumeration in IFC 2.x.
ISSUE See issue and change log for changes made in IFC 2x.

EXPRESS specification:

TYPE IfcDirectionSenseEnum = ENUMERATION OF
( POSITIVE,
NEGATIVE);
END_TYPE;

References (1):

Name Type Referred through Express-G
IfcMaterialLayerSetUsage Entity
Attribute 'DirectionSense'
Diagram 1