This enumeration defines the different predefined types of geographic elements that can further specify an IfcGeographicElement or an IfcGeographicElementType.
NOTE Cuurently no other predefined types beside terrain are defined.
HISTORY New enumeration in IFC2x2.
TYPE IfcGeographicElementTypeEnum = ENUMERATION OF (SOIL_BORING_POINT ,TERRAIN ,USERDEFINED ,NOTDEFINED); END_TYPE;