IfcMeasureValue

BACnet MVD

#### IfcMeasureValue

Natural language names

| Measure Value
| Valeur de mesure

Change log

Item | SPF | XML | Change | Description
--- | --- | --- | --- | ---
IFC2x3 to IFC4
IfcMeasureValue |  |  |  |
IfcNonNegativeLengthMeasure |  |  | ADDED |

##### Semantic definitions at the type

Type definition

> NOTE Definition according to ISO/CD 10303-41:1992
> A measure value is a value as defined in ISO 31-0 (clause 2).

> NOTE IfcMeasureValue is a select data type for most basic measure types coming from ISO 10303-41. Select item IfcNonNegativeLengthMeasure is in addition to ISO 10303-41.

> NOTE Corresponding ISO 10303 name: measure_value, please refer to ISO/IS 10303-41 for the final definition of the formal standard.

> HISTORY New type in IFC1.5.1.

> IFC 2x4 CHANGE IfcNonNegativeLengthMeasure added.

Select definition

Type | Description
--- | ---
IfcVolumeMeasure |
IfcTimeMeasure |
IfcThermodynamicTemperatureMeasure |
IfcSolidAngleMeasure |
IfcPositiveRatioMeasure |
IfcRatioMeasure |
IfcPositivePlaneAngleMeasure |
IfcPlaneAngleMeasure |
IfcParameterValue |
IfcNumericMeasure |
IfcMassMeasure |
IfcPositiveLengthMeasure |
IfcLengthMeasure |
IfcElectricCurrentMeasure |
IfcDescriptiveMeasure |
IfcCountMeasure |
IfcContextDependentMeasure |
IfcAreaMeasure |
IfcAmountOfSubstanceMeasure |
IfcLuminousIntensityMeasure |
IfcNormalisedRatioMeasure |
IfcComplexNumber |
IfcNonNegativeLengthMeasure |

##### Formal representations

XML Specification
`<xs:group name="IfcMeasureValue">
<xs:choice>
<xs:element ref="ifc:IfcAmountOfSubstanceMeasure-wrapper"/>
<xs:element ref="ifc:IfcAreaMeasure-wrapper"/>
<xs:element ref="ifc:IfcComplexNumber-wrapper"/>
<xs:element ref="ifc:IfcContextDependentMeasure-wrapper"/>
<xs:element ref="ifc:IfcCountMeasure-wrapper"/>
<xs:element ref="ifc:IfcDescriptiveMeasure-wrapper"/>
<xs:element ref="ifc:IfcElectricCurrentMeasure-wrapper"/>
<xs:element ref="ifc:IfcLengthMeasure-wrapper"/>
<xs:element ref="ifc:IfcLuminousIntensityMeasure-wrapper"/>
<xs:element ref="ifc:IfcMassMeasure-wrapper"/>
<xs:element ref="ifc:IfcNonNegativeLengthMeasure-wrapper"/>
<xs:element ref="ifc:IfcNormalisedRatioMeasure-wrapper"/>
<xs:element ref="ifc:IfcNumericMeasure-wrapper"/>
<xs:element ref="ifc:IfcParameterValue-wrapper"/>
<xs:element ref="ifc:IfcPlaneAngleMeasure-wrapper"/>
<xs:element ref="ifc:IfcPositiveLengthMeasure-wrapper"/>
<xs:element ref="ifc:IfcPositivePlaneAngleMeasure-wrapper"/>
<xs:element ref="ifc:IfcPositiveRatioMeasure-wrapper"/>
<xs:element ref="ifc:IfcRatioMeasure-wrapper"/>
<xs:element ref="ifc:IfcSolidAngleMeasure-wrapper"/>
<xs:element ref="ifc:IfcThermodynamicTemperatureMeasure-wrapper"/>
<xs:element ref="ifc:IfcTimeMeasure-wrapper"/>
<xs:element ref="ifc:IfcVolumeMeasure-wrapper"/>
</xs:choice>
</xs:group>
`
EXPRESS Specification
`TYPE IfcMeasureValue = SELECT (
IfcVolumeMeasure,
IfcTimeMeasure,
IfcThermodynamicTemperatureMeasure,
IfcSolidAngleMeasure,
IfcPositiveRatioMeasure,
IfcRatioMeasure,
IfcPositivePlaneAngleMeasure,
IfcPlaneAngleMeasure,
IfcParameterValue,
IfcNumericMeasure,
IfcMassMeasure,
IfcPositiveLengthMeasure,
IfcLengthMeasure,
IfcElectricCurrentMeasure,
IfcDescriptiveMeasure,
IfcCountMeasure,
IfcContextDependentMeasure,
IfcAreaMeasure,
IfcAmountOfSubstanceMeasure,
IfcLuminousIntensityMeasure,
IfcNormalisedRatioMeasure,
IfcComplexNumber,
IfcNonNegativeLengthMeasure);
END_TYPE;

EXPRESS-G diagram

`

References: IfcValue

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