IfcCourseTypeEnum

Item	SPF	XML	Change	Description
IFC4x2 to IFC4x3_RC1
IfcCourseTypeEnum			ADDED

Semantic definitions at the type

Type definition

This container defines the different predefined types of course elements that can further specify an IfcCourse or IfcCourseType.

Enumeration definition

Constant	Description
ARMOUR	An Aggregate layer whose primary function is to protect against erosion of the underlying material by water e.g. riprap. NOTE Definition from ISO 21650: protective layer on a breakwater, seawall or other rubble mound structures composed of armour units
FILTER	An Intermediate layer whose primary function is to prevent the washing through of fine materials.
BALLASTBED	Layer composed of broken stones under the sleepers.
CORE	A core course is the bulk internal structure of aggregate structures.
PAVEMENT	A layer within a pavement structure that forms a paved area or road.
PROTECTION	Layer with the primary task to provide protection against erosion and scour.
USERDEFINED	User-defined type
NOTDEFINED	Undefined type.

Formal representations

XML Specification

 <xs:simpleType name="IfcCourseTypeEnum">

  <xs:restriction base="xs:string">

   <xs:enumeration value="armour"/>

   <xs:enumeration value="filter"/>

   <xs:enumeration value="ballastbed"/>

   <xs:enumeration value="core"/>

   <xs:enumeration value="pavement"/>

   <xs:enumeration value="protection"/>

   <xs:enumeration value="userdefined"/>

   <xs:enumeration value="notdefined"/>

  </xs:restriction>

 </xs:simpleType>

EXPRESS Specification


TYPE IfcCourseTypeEnum = ENUMERATION OF (

 ARMOUR, 
 FILTER, 
 BALLASTBED, 
 CORE, 
 PAVEMENT, 
 PROTECTION, 
 USERDEFINED, 
 NOTDEFINED);
END_TYPE;


 EXPRESS-G diagram