7.1.2.5 IfcPermeableCoveringOperationEnum

This enumeration defines the valid types of permeable coverings.

HISTORY  New enumeration in IFC2.0.

Enumerated Item Definitions:

GRILL  protective screen of metal bars or wires
LOUVER  set of fixed or movable strips of wood, metal, etc. arranged to let air in while keeping light or rain out
SCREEN  upright, fixed or movable, sometimes folding framework used for protection against heat, light, access or similar
USERDEFINED  user defined permeable covering type
NOTDEFINED  no information available

XSD Specification:

 <xs:simpleType name="IfcPermeableCoveringOperationEnum">
  <xs:restriction base="xs:string">
   <xs:enumeration value="grill"/>
   <xs:enumeration value="louver"/>
   <xs:enumeration value="screen"/>
   <xs:enumeration value="userdefined"/>
   <xs:enumeration value="notdefined"/>
  </xs:restriction>
 </xs:simpleType>

EXPRESS Specification:

TYPE IfcPermeableCoveringOperationEnum = ENUMERATION OF (
GRILL,
LOUVER,
SCREEN,
USERDEFINED,
NOTDEFINED);
END_TYPE;

Link to EXPRESS-G diagram EXPRESS-G diagram

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