IfcConstraintEnum

8.2.2.2 IfcConstraintEnum

IfcConstraintEnum is an enumeration used to qualify a constraint.

HISTORY New enumeration in IFC2.0

Enumerated Item Definitions:

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.
USERDEFINED: A user-defined grade indicated by a separate attribute at the referencing entity.
NOTDEFINED: Grade has not been specified.

XSD Specification:

<xs:simpleType name="IfcConstraintEnum">
  <xs:restriction base="xs:string">
   <xs:enumeration value="hard"/>
   <xs:enumeration value="soft"/>
   <xs:enumeration value="advisory"/>
   <xs:enumeration value="userdefined"/>
   <xs:enumeration value="notdefined"/>
  </xs:restriction>
</xs:simpleType>

EXPRESS Specification:

TYPE IfcConstraintEnum = ENUMERATION OF (

HARD,
SOFT,
ADVISORY,
USERDEFINED,
NOTDEFINED);

END_TYPE;

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