Defined in File Ifc2x3.h
This enumeration is used to identify the primary purpose of a duct segment. This is a very basic categorization mechanism to generically identify the duct segment type. Subcategories of duct segments are not enumerated. The IfcDuctSegmentTypeEnum contains the following:
RIGIDSEGMENT: A rigid segment is continuous linear segment of duct that cannot be deformed. FLEXIBLESEGMENT: A flexible segment is a continuous non-linear segment of duct that can be deformed and change the direction of flow. USERDEFINED: User-defined segment. NOTDEFINED: Undefined segment.
HISTORY: New enumeration in IFC 2x2