IfcFacilityUsageEnum

Item	Change	Description
IFC4x2 to IFC4x3_RC1
IfcFacilityUsageEnum	ADDED
IFC4x3_RC3 to IFC4x3_RC4
IfcFacilityUsageEnum	MOVED	Schema changed from IFCSHAREDINFRASTRUCTUREELEMENTS to IFCPRODUCTEXTENSION.

Semantic definitions at the type

Type definition

This container defines the different usage types of conveyor segments that can further specify an IfcFacilityPart.

Enumeration definition

Constant	Description
LATERAL	A Lateral usage implies a facility part is a lateral (left, right, centre etc.) subdivision of a longitudinal segment or facility. common uses include traffic lanes, road or rail side embankments etc.
REGION	A regional usage implies a bounded subdivision in the "X-Y plane" of a parent IfcSpatialStructureElement. The parent IfcSpatialStructureElement can be longitudinal or regional in nature.
VERTICAL	A vertical usage implies a subdivision in the "Z plane" usually signifying a defined elevation level or controlled volume within a segment of the Z plane.
LONGITUDINAL	A longitidunal usage implies a subdivision along a linear facility where the part has a defined start and end along the facility alignment(s).
USERDEFINED	User-defined type
NOTDEFINED	Undefined type.

Formal representations

XML Specification

 <xs:simpleType name="IfcFacilityUsageEnum">

  <xs:restriction base="xs:string">

   <xs:enumeration value="lateral"/>

   <xs:enumeration value="region"/>

   <xs:enumeration value="vertical"/>

   <xs:enumeration value="longitudinal"/>

   <xs:enumeration value="userdefined"/>

   <xs:enumeration value="notdefined"/>

  </xs:restriction>

 </xs:simpleType>

EXPRESS Specification


TYPE IfcFacilityUsageEnum = ENUMERATION OF (

 LATERAL, 
 REGION, 
 VERTICAL, 
 LONGITUDINAL, 
 USERDEFINED, 
 NOTDEFINED);
END_TYPE;


 EXPRESS-G diagram