IfcLightFixtureTypeEnum

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

Item	SPF	XML	Change	Description
IFC2x3 to IFC4 4.0.0.0
IfcLightFixtureTypeEnum
SECURITYLIGHTING			ADDED

	Light Fixture Type Enum
	Enumération des types de fixation de lampe