gml:datumRef

deprecated

Element information

Content

• Choice [1..1]
  from subst. group gml:AbstractDatum
  gml:GeodeticDatum [0..1]    gml:GeodeticDatum is a geodetic datum defines the precise location and orientation in 3-dimensional space of a defined ellipsoid (or sphere), or of a Cartesian coordinate system centered in this ellipsoid (or sphere).
  gml:EngineeringDatum [0..1]    gml:EngineeringDatum defines the origin of an engineering coordinate reference system, and is used in a region around that origin. This origin may be fixed with respect to the earth (such as a defined point at a construction site), or be a defined point on a moving vehicle (such as on a ship or satellite).
  gml:ImageDatum [0..1]    gml:ImageDatum defines the origin of an image coordinate reference system, and is used in a local context only. For an image datum, the anchor definition is usually either the centre of the image or the corner of the image. For more information, see ISO 19111 B.3.5.
  gml:VerticalDatum [0..1]    gml:VerticalDatum is a textual description and/or a set of parameters identifying a particular reference level surface used as a zero-height surface, including its position with respect to the Earth for any of the height types recognized by this International Standard.
  gml:TemporalDatum [0..1]    A gml:TemporalDatum defines the origin of a Temporal Reference System. This type omits the "anchorDefinition" and "realizationEpoch" elements and adds the "origin" element with the dateTime type.

Attributes

Sample instance

<gml:datumRef>
   <gml:GeodeticDatum gml:id="ID">
      <gml:metaDataProperty>
         <gml:GenericMetaData>Any text, intermingled with:...
         </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:anchorDefinition>string</gml:anchorDefinition>
      <gml:realizationEpoch>2000-01-01</gml:realizationEpoch>
      <gml:primeMeridian>
         <gml:PrimeMeridian gml:id="ID">...
         </gml:PrimeMeridian>
      </gml:primeMeridian>
      <gml:ellipsoid>
         <gml:Ellipsoid gml:id="ID">...
         </gml:Ellipsoid>
      </gml:ellipsoid>
   </gml:GeodeticDatum>
</gml:datumRef>