Difference between revisions of "Extensions.Quantities.Unit"
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m (Hb moved page Unit to Extensions.Quantities.Unit: #3153) |
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{{DISPLAYTITLE:Data Type '''Unit'''}}[[Category:DataType]][[Category:Quantities]] | {{DISPLAYTITLE:Data Type '''Unit'''}}[[Category:DataType]][[Category:Quantities]] | ||
== Classification == | == Classification == | ||
| − | {{ClassificationDataType | Unit | A physical unit which is defined in a UNIT-SPEC. | [[ | + | {{ClassificationDataType | Unit | A physical unit which is defined in a UNIT-SPEC. | [[Core.DataTypes.SimpleDataType|Simple Data Type]] | [[Core.DataTypes.SimpleDataType.SimpleType|SimpleType]] | - | Literal=Yes }} |
== Description == | == Description == | ||
Revision as of 08:11, 21 September 2018
Classification
| Name | Unit |
| Short Description | A physical unit which is defined in a UNIT-SPEC. |
| Class | Simple Data Type |
| Base Data Type | SimpleType |
| Default Value | Empty |
| Provide a Literal | Yes |
| SpecifiedBy | ISO 13209-3 |
| Standard Compliant | Yes |
Description
A Unit represents a physical unit which is defined in a UNIT-SPEC. A Unit can be associated to a physical value when creating a Quantity, but it can also be used stand-alone, e.g. when comparing the display Unit of a Quantity to another Unit object.
Literal
The syntax for Literals for complex data types should be used, UnitLiteral be used to create a Unit object based on a unit definition contained in UNIT-SPEC document.
Value = LiteralCore Conversion
The following table shows the rules for conversion to another data type:
| Conversion | Result | Sample |
| ToBoolean | Undefined (should not be used) | |
| ToInteger | Undefined (should not be used) | |
| ToFloat | Undefined (should not be used) | |
| ToString | Returns the name of the Unit object | String s = ToString(@Unit:"km"); // Returns "km" |
| ToByteField | Undefined (should not be used) |
Sample
Unit MyUnitVariable = @Unit:"km";