IfcPermeableCoveringOperationEnum

Semantic definitions at the type

Type definition

This enumeration defines the valid types of permeable coverings.

HISTORY New enumeration in IFC2.0.

Enumeration definition

Constant	Description
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.

Formal representations

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;


 EXPRESS-G diagram