IfcUnit

Natural language names
Einheit
Unit
Unité
Semantic definitions at the type
Type definition

NOTE  Definition according to 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 10303-41.

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

SELECT

HISTORY  New type in IFC1.5.1.

Select definition
TypeDescription
IfcDerivedUnit
IfcNamedUnit
IfcMonetaryUnit
Formal representations
XML Specification
 <xs:group name="IfcUnit">
  <xs:choice>
   <xs:element ref="ifc:IfcDerivedUnit"/>
   <xs:element ref="ifc:IfcMonetaryUnit"/>
   <xs:element ref="ifc:IfcNamedUnit"/>
  </xs:choice>
 </xs:group>
EXPRESS Specification
TYPE IfcUnit = SELECT (
 IfcDerivedUnit,
 IfcNamedUnit,
 IfcMonetaryUnit);
END_TYPE;

Link to EXPRESS-G diagram EXPRESS-G diagram

References  References: IfcSimplePropertyTemplate IfcTimeSeries IfcMeasureWithUnit IfcUnitAssignment IfcPropertyBoundedValue IfcPropertyEnumeration IfcPropertyListValue IfcPropertySingleValue IfcPropertyTableValue IfcTableColumn

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