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IfcMeasureWithUnit

Definition from ISO/CD 10303-41:1992: A measure with unit is the specification of a physical quantity as defined in ISO 31 (clause 2).

IfcMeasureWithUnit has two usages:
1. For representing measure value together with its unit on the entity type attribute level; thus overriding the IFC model global unit assignments.
2. For conversion based unit to give the conversion rate and its base.

NOTE Corresponding STEP name: measure_with_unit, please refer to ISO/IS 10303-41:1994 for the final definition of the formal standard.
HISTORY New entity in IFC Release 1.5.1.

EXPRESS specification:

ENTITY IfcMeasureWithUnit;
ValueComponent  :  IfcValue;
UnitComponent  :  IfcUnit;
END_ENTITY;

Attribute definitions:

ValueComponent  :  The value of the physical quantity when expressed in the specified units.
UnitComponent  :  The unit in which the physical quantity is expressed.

Inheritance graph

ENTITY IfcMeasureWithUnit;
ENTITY IfcMeasureWithUnit;
ValueComponent  :  IfcValue;
UnitComponent  :  IfcUnit;
END_ENTITY;