Defined in File Ifc2x3.h
This struct is a nested type of Struct Ifc2x3.
IfcConstraintEnum is an enumeration used to qualify a constraint.
HISTORY: New type in IFC Release 2.0
HARD Qualifies a constraint such that it must be followed rigidly within or at the values set.
SOFT Qualifies a constraint such that it should be followed within or at the values set.
ADVISORY Qualifies a constraint such that it is advised that it is followed within or at the values set.