8.11.3.7 IfcMeasureWithUnit
RV ⓘ
AbV ⓘ
8.11.3.7.1 Semantic definition
Definition according to 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.
Corresponding ISO 10303 name: measure_with_unit, please refer to ISO/IS 10303-41 for the final definition of the formal standard. New entity in IFC1.5.1.8.11.3.7.2 Entity inheritance
8.11.3.7.3 Attributes
| # | Attribute | Type | Description |
|---|---|---|---|
| IfcMeasureWithUnit (2) | |||
| 1 | ValueComponent | IfcValue |
The value of the physical quantity when expressed in the specified units. |
| 2 | UnitComponent | IfcUnit |
The unit in which the physical quantity is expressed. |
8.11.3.7.4 Examples
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Figure 8.11.3.7.A -
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Figure 8.11.3.7.Q
8.11.3.7.5 Formal representation
ENTITY IfcMeasureWithUnit;
ValueComponent : IfcValue;
UnitComponent : IfcUnit;
END_ENTITY;