8.12.2.2 IfcColourOrFactor
8.12.2.2.1 Semantic definition
The IfcColourOrFactor enables the selection of either a RGB colour value or a scalar factor value for the use as values of the reflectance components.
8.12.2.2.2 Type values
8.12.2.2.3 Formal representation
TYPE IfcColourOrFactor = SELECT (IfcColourRgb ,IfcNormalisedRatioMeasure); END_TYPE;