Unit

A precisely specified quantity in terms of which the magnitudes of other quantities of the same kind can be stated. The different systems to define units are represented by the subclasses of this class (e.g. SIUnit, ImperialUnit).

General Information

AttributeValue
Ownerphysical_information
Applied Stereotype
Base Classifier
Is Abstracttrue
Derived ClassifiersCompositeUnit, CustomUnit, IECUnit, ImperialUnit, OtherUnit, SIUnit, USUnit

Attributes

NameTypeMult.DescriptionOwning Classifier
exponentInteger0..1

Defines the exponent with which this unit instance should be used. In order to define square meters for example, the SIUnit "metre" with an exponent of 2 will be used. If no exponent is defined it is equivalent to the value 1.

Unit
unEceCodeString0..1

The UNECE provides a list of "Codes for Units of Measurement used in the International Trade". This attribute shall be used for traceability of Units defined in the VEC into the UNECE system only. It provides additional meta information about the unit, but shall not be used as the only definition of a Unit. Specifying a UNECE code does not exempt the creating system from generating a correct VEC mapping of the corresponding unit. In case of doubt, the VEC mapping has priority.

Unit

Incoming Relations

This EndOther EndGeneral
RoleMult.Agg.UniqueOrderedTypeMult.Description
baseUnit1NYNLocalGeometrySpecification

The Unit in which all coordinates (e.g. cartesian points) are defined. Shall be a unit of length (e.g. millimetre).

baseUnit1NYNBuildingBlockSpecification2D0..*
baseUnit1NYNBuildingBlockSpecification3D0..*
baseUnit1NYNCavityPositionDetail0..*

The Unit in which all coordinates (e.g. cartesian points) of this CavityPositionDetail are defined. Shall be a unit of length (e.g. millimetre).

factors1..*NYNCompositeUnit

References the Units that are used as factors to create the CompositeUnit.

unit0..*YYNVecContent1Specifies the Units used in the VEC-file.
unitComponent1NYNValueWithUnit0..*References the unit of the value.
unitComponent1NYNDimension0..*
Previous