8.11.3.1 IfcContextDependentUnit
NOTE This entity is not part of a standardized schema subset or implementation level.
{ .extDef}
NOTE Definition according to ISO/CD 10303-41:1992
A context dependent unit is a unit which is not related to the SI system.NOTE The number of parts in an assembly is a physical quantity measured in units that may be called "parts" but which cannot be related to an SI unit.NOTE Corresponding ISO 10303 name: context_dependent_unit, please refer to ISO/IS 10303-41 for the final definition of the formal standard.HISTORY New entity in IFC1.5.1.
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Attribute
Type
Description
IfcNamedUnit
(2)
1
Dimensions
IfcDimensionalExponents
The dimensional exponents of the SI base units by which the named unit is defined.
2
UnitType
IfcUnitEnum
The type of the unit.
IfcContextDependentUnit
(2)
3
Name
IfcLabel
The word, or group of words, by which the context dependent unit is referred to.
HasExternalReference
SET [0:?] OF IfcExternalReferenceRelationship FOR RelatedResourceObjects
Reference to external information, e.g. library, classification, or document information, which is associated with the context dependent unit.
IFC4-CHANGE New inverse attribute
Table A ENTITY IfcContextDependentUnit SUBTYPE OF ( IfcNamedUnit ) ;
Name : IfcLabel ;
INVERSE
HasExternalReference : SET [ 0 : ? ] OF IfcExternalReferenceRelationship FOR RelatedResourceObjects ;
END_ENTITY ;
3 contributor(s):
Last change: Improve definition split (#876)
* bring back headers
headers were previously removed by mistake, now bringing them back
* add new lines and rename the tag
add the word 'short' in it
* unify newlines
make exactly one newline before and two after the tag
* resolving typos
Because bringing back headers required to go back in time to previous version, I'm now re-resolving the issues: #861, #860, #856 by ArturTomczak on 2024-07-16T16:07:28+02:00
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