IfcTunnelPartTypeEnum

Item	SPF	XML	Change	Description
IFC4X3_ADD2 to IFC4X4_draft
IfcTunnelPartTypeEnum			ADDED

Semantic definitions at the type

Type definition

A list of types to further identify the tunnel part. Some property sets may be specifically applicable to one of these types.

Enumeration definition

Constant	Description
TUNNELSECTION	A longitudinal section of a tunnel of an arbitrary length.
CROSSWAY	A place in a tunnel system where several routes meet, link or cross each other.
RINGSECTION	A longitudinal section corresponding to a ring as used in segmental lining in the context of mechanized tunneling.
PORTAL	The longitudinal section which is the entrance to or exit from a tunnel.
USERDEFINED	User-defined type.
NOTDEFINED	Undefined type.

Formal representations

XML Specification

 <xs:simpleType name="IfcTunnelPartTypeEnum">

  <xs:restriction base="xs:string">

   <xs:enumeration value="tunnelsection"/>

   <xs:enumeration value="crossway"/>

   <xs:enumeration value="ringsection"/>

   <xs:enumeration value="portal"/>

   <xs:enumeration value="userdefined"/>

   <xs:enumeration value="notdefined"/>

  </xs:restriction>

 </xs:simpleType>

EXPRESS Specification


TYPE IfcTunnelPartTypeEnum = ENUMERATION OF (

 TUNNELSECTION, 
 CROSSWAY, 
 RINGSECTION, 
 PORTAL, 
 USERDEFINED, 
 NOTDEFINED);
END_TYPE;


 EXPRESS-G diagram