IfcVirtualElementTypeEnum

Constant	Description
BOUNDARY	An imaginary boundary, such as between two adjacent spaces that are not separated by a physcial boundary.
CLEARANCE	The virtual element denotes a clearance area or volume. EXAMPLE The space allocated as a placeholder for mechanical equipment or furniture.
PROVISIONFORVOID	The proxy denotes a provision for voids (an proposed opening not applied as void yet).
USERDEFINED	A specially defined member.
NOTDEFINED	Undefined type.

Formal representations

XML Specification

 <xs:simpleType name="IfcVirtualElementTypeEnum">

  <xs:restriction base="xs:string">

   <xs:enumeration value="boundary"/>

   <xs:enumeration value="clearance"/>

   <xs:enumeration value="provisionforvoid"/>

   <xs:enumeration value="userdefined"/>

   <xs:enumeration value="notdefined"/>

  </xs:restriction>

 </xs:simpleType>

EXPRESS Specification


TYPE IfcVirtualElementTypeEnum = ENUMERATION OF (

 BOUNDARY, 
 CLEARANCE, 
 PROVISIONFORVOID, 
 USERDEFINED, 
 NOTDEFINED);
END_TYPE;


 EXPRESS-G diagram

IfcVirtualElementTypeEnum

Semantic definitions at the type

Formal representations