Schema documentation for component gml:ConventionalUnitType

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Annotations

Attributes

Diagrams

Source

Used by

Complex Type gml:ConventionalUnitType

Namespace

http://www.opengis.net/gml

Annotations

Definition of a unit of measure which is related to a preferred unit for this quantity type through a conversion formula.  A method for deriving this unit by algebraic combination of more primitive units, may also be provided.

Diagram

Type

extension of gml:UnitDefinitionType

Type hierarchy

gml:AbstractGMLType
- gml:DefinitionType
  - gml:UnitDefinitionType
    - gml:ConventionalUnitType

Used by

Element

gml:ConventionalUnit

Model

gml:metaDataProperty* , gml:description{0,1} , gml:name+ , gml:quantityType , gml:catalogSymbol{0,1} , (gml:conversionToPreferredUnit | gml:roughConversionToPreferredUnit) , gml:derivationUnitTerm*

Children

gml:catalogSymbol, gml:conversionToPreferredUnit, gml:derivationUnitTerm, gml:description, gml:metaDataProperty, gml:name, gml:quantityType, gml:roughConversionToPreferredUnit

Attributes

QName

Type

Fixed

Default

Use

Annotation

gml:id

required

Database handle for the object.  It is of XML type ID, so is constrained to be unique in the XML document within which it occurs.  An external identifier for the object in the form of a URI may be constructed using standard XML and XPointer methods.  This is done by concatenating the URI for the document, a fragment separator, and the value of the id attribute.

Source

<complexType name="ConventionalUnitType">
  <annotation>
    <documentation>Definition of a unit of measure which is related to a preferred unit for this quantity type through a conversion formula. A method for deriving this unit by algebraic combination of more primitive units, may also be provided.</documentation>
  </annotation>
  <complexContent>
    <extension base="gml:UnitDefinitionType">
      <sequence>
        <choice>
          <element ref="gml:conversionToPreferredUnit"/>
          <element ref="gml:roughConversionToPreferredUnit"/>
        </choice>
        <element ref="gml:derivationUnitTerm" minOccurs="0" maxOccurs="unbounded"/>
      </sequence>
    </extension>
  </complexContent>
</complexType>

Schema location

http://schemas.opengis.net/gml/3.1.1/base/units.xsd