Defined in File Ifc4.h
IfcThermalExpansionCoefficientMeasure: public IfcUtil::IfcBaseType¶
IfcThermalExpansionCoeffientMeasure is a measure of the thermal expansion coefficient of a material, which expresses its elongation (as a ratio) per temperature difference. It is usually measured in 1/K. A positive elongation per (positive) rise of temperature is expressed by a positive value. Type: REAL
HISTORY New type in IFC2x2.
operator double() const¶