gml:operationRef

Element information

Content

• Choice [0..1]
  from subst. group gml:AbstractGeneralConversion
  gml:Conversiongml:Conversion is a concrete operation on coordinates that does not include any change of Datum. The best-known example of a coordinate conversion is a map projection. The parameters describing coordinate conversions are defined rather than empirically derived. Note that some conversions have no parameters. This concrete complex type can be used without using a GML Application Schema that defines operation-method-specialized element names and contents, especially for methods with only one Conversion instance. The usesValue property elements are an unordered list of composition associations to the set of parameter values used by this conversion operation.
  from subst. group gml:Conversion
  gmx:ML_Conversion
  from subst. group gml:AbstractGeneralTransformation
  gml:Transformationgml:Transformation is a concrete object element derived from gml:GeneralTransformation (13.6.2.13). This concrete object can be used for all operation methods, without using a GML Application Schema that defines operation-method-specialized element names and contents, especially for methods with only one Transformation instance. The parameterValue elements are an unordered list of composition associations to the set of parameter values used by this conversion operation.
  from subst. group gml:Transformation
  gmx:ML_Transformation

Attributes

Sample instance

<gml:operationRef>
   <gml:Conversion gml:id="ID">
      <gml:metaDataProperty>
         <gml:GenericMetaData>Any text, intermingled with:
            <!--any element-->
         </gml:GenericMetaData>
      </gml:metaDataProperty>
      <gml:description>string</gml:description>
      <gml:descriptionReference/>
      <gml:identifier codeSpace="http://www.example.com/">string</gml:identifier>
      <gml:name>string</gml:name>
      <gml:remarks>string</gml:remarks>
      <gml:domainOfValidity>
         <gmd:EX_Extent>............
         </gmd:EX_Extent>
      </gml:domainOfValidity>
      <gml:scope>string</gml:scope>
      <gml:coordinateOperationAccuracy>
         <gmd:DQ_RelativeInternalPositionalAccuracy>........................
         </gmd:DQ_RelativeInternalPositionalAccuracy>
      </gml:coordinateOperationAccuracy>
      <gml:method>
         <gml:OperationMethod gml:id="ID">...
         </gml:OperationMethod>
      </gml:method>
      <gml:parameterValue>
         <gml:ParameterValue>......
         </gml:ParameterValue>
      </gml:parameterValue>
   </gml:Conversion>
</gml:operationRef>