Schema Central > NIEM 3.1 > coordinateReferenceSystems.xsd > gml:DerivedCRS
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gml:DerivedCRS

gml:DerivedCRS is a single coordinate reference system that is defined by its coordinate conversion from another single coordinate reference system known as the base CRS. The base CRS can be a projected coordinate reference system, if this DerivedCRS is used for a georectified grid coverage as described in ISO 19123, Clause 8.

Element information

Content

Attributes

NameOccTypeDescriptionNotes
gml:id [1..1]xsd:IDThe attribute gml:id supports provision of a handle for the XML element representing a GML Object. Its use is mandatory for all GML objects. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs.from type gml:DefinitionBaseType

Used in

Substitution hierarchy

Sample instance

<gml:DerivedCRS 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:description>...
         </gmd:description>
         <gmd:geographicElement>...
         </gmd:geographicElement>
         <gmd:temporalElement>...
         </gmd:temporalElement>
         <gmd:verticalElement>...
         </gmd:verticalElement>
      </gmd:EX_Extent>
   </gml:domainOfValidity>
   <gml:scope>string</gml:scope>
   <gml:conversion>
      <gml:Conversion gml:id="ID">
         <gml:metaDataProperty>...
         </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>...
         </gml:domainOfValidity>
         <gml:scope>string</gml:scope>
         <gml:coordinateOperationAccuracy>...
         </gml:coordinateOperationAccuracy>
         <gml:method>...
         </gml:method>
         <gml:parameterValue>...
         </gml:parameterValue>
      </gml:Conversion>
   </gml:conversion>
   <gml:baseCRS>
      <gml:ProjectedCRS gml:id="ID">
         <gml:metaDataProperty>...
         </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>...
         </gml:domainOfValidity>
         <gml:scope>string</gml:scope>
         <gml:conversion>...
         </gml:conversion>
         <gml:baseGeodeticCRS>...
         </gml:baseGeodeticCRS>
         <gml:cartesianCS>...
         </gml:cartesianCS>
      </gml:ProjectedCRS>
   </gml:baseCRS>
   <gml:derivedCRSType codeSpace="http://www.example.com/">string</gml:derivedCRSType>
   <gml:coordinateSystem>
      <gml:EllipsoidalCS gml:id="ID">
         <gml:metaDataProperty>...
         </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:axis>...
         </gml:axis>
      </gml:EllipsoidalCS>
   </gml:coordinateSystem>
</gml:DerivedCRS>

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