IfcValue

Definition from IAI: A select type for selecting between more specialised select types IfcSimpleValue, IfcMeasureValue and IfcDerivedMeasureValue.

SELECT

IfcSimpleValue A select type for basic defined types of simple data type.
IfcMeasureValue A select type for basic measure types of ISO/CD 10303-41.
IfcDerivedMeasureValue A select type for derived measure types.

HISTORY New type in IFC Release 2x.

EXPRESS specification:

TYPE IfcValue = SELECT

(	IfcMeasureValue, IfcSimpleValue, IfcDerivedMeasureValue);

END_TYPE;