Defined in File Ifc4.h
IfcLuminousIntensityDistributionMeasure: public IfcUtil::IfcBaseType¶
IfcLuminousIntensityDistributionMeasure is a measure of the luminous intensity of a light source that changes according to the direction of the ray. It is normally based on some standardized distribution light distribution curves.
Usually measured in Candela/Lumen (cd/lm) or (cd/klm).
HISTORY New type in IFC2x2.
operator double() const¶