IfcUnit

IfcUnit

Definition from ISO/CD 10303-41:1992: A unit is a physical quantity, with a value of one, which is used as a standard in terms of which other quantities are expressed.

NOTE: Select item IfcMonetaryUnit is an addition to ISO/CD 10303-41:1992.

SELECT

IfcNamedUnit A unit which is identified by a name.
IfcDerivedUnit A unit which is derived from an expression of units.
IfcMonetaryUnit A unit for defining currencies.

EXPRESS specification:

TYPE IfcUnit = SELECT

(	IfcDerivedUnit, IfcNamedUnit, IfcMonetaryUnit);

END_TYPE;

References (2):

Name

Type

Referred through

Express-G

IfcMeasureWithUnit

Entity

Attribute 'UnitComponent'

Diagram 1

IfcUnitAssignment

Entity

Attribute 'Units'

Diagram 1