IfcDuctSegmentTypeEnum

BACnet MVD

#### IfcDuctSegmentTypeEnum

Natural language names

| Duct Segment Type Enum
| Énumération des types de tronçon de gaine

##### Semantic definitions at the type

Type definition

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.

> HISTORY New enumeration in IFC2x2.

Enumeration definition

Constant | Description
--- | ---
RIGIDSEGMENT | A rigid segment is a 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.

##### Formal representations

XML Specification
`<xs:simpleType name="IfcDuctSegmentTypeEnum">
<xs:restriction base="xs:string">
<xs:enumeration value="rigidsegment"/>
<xs:enumeration value="flexiblesegment"/>
<xs:enumeration value="userdefined"/>
<xs:enumeration value="notdefined"/>
</xs:restriction>
</xs:simpleType>
`
EXPRESS Specification
`TYPE IfcDuctSegmentTypeEnum = ENUMERATION OF (
RIGIDSEGMENT,
FLEXIBLESEGMENT,
USERDEFINED,
NOTDEFINED);
END_TYPE;

EXPRESS-G diagram

`

References: IfcDuctSegment IfcDuctSegmentType

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