IfcLightFixtureTypeEnum

BACnet MVD

#### IfcLightFixtureTypeEnum

Natural language names

| Light Fixture Type Enum
| Enumération des types de fixation de lampe

Change log

Item | SPF | XML | Change | Description
--- | --- | --- | --- | ---
IFC2x3 to IFC4
IfcLightFixtureTypeEnum |  |  |  |
SECURITYLIGHTING |  |  | ADDED |

##### Semantic definitions at the type

Type definition

The IfcLightFixtureTypeEnum defines the different types of light fixtures.

> HISTORY New type in IFC2x2.

> IFC4 CHANGE SECURITYLIGHTING added

Enumeration definition

Constant | Description
--- | ---
POINTSOURCE | A light fixture that is considered to have negligible area and that emit light with approximately equal intensity in all directions. A light fixture containing a tungsten, halogen or similar bulb is an example of a point source.
DIRECTIONSOURCE | A light fixture that is considered to have a length or surface area from which it emits light in a direction. A light fixture containing one or more fluorescent lamps is an example of a direction source.
SECURITYLIGHTING | A light fixture having specific purpose of directing occupants in an emergency, such as an illuminated exit sign or emergency flood light.
USERDEFINED | User-defined type.
NOTDEFINED | Undefined type.

##### Formal representations

XML Specification
`<xs:simpleType name="IfcLightFixtureTypeEnum">
<xs:restriction base="xs:string">
<xs:enumeration value="pointsource"/>
<xs:enumeration value="directionsource"/>
<xs:enumeration value="securitylighting"/>
<xs:enumeration value="userdefined"/>
<xs:enumeration value="notdefined"/>
</xs:restriction>
</xs:simpleType>
`
EXPRESS Specification
`TYPE IfcLightFixtureTypeEnum = ENUMERATION OF (
POINTSOURCE,
DIRECTIONSOURCE,
SECURITYLIGHTING,
USERDEFINED,
NOTDEFINED);
END_TYPE;

EXPRESS-G diagram

`

References: IfcLightFixture IfcLightFixtureType

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