Schema Central > NIEM 2.1 > datums.xsd > gml:PrimeMeridian
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A gml:PrimeMeridian defines the origin from which longitude values are determined. The default value for the prime meridian gml:identifier value is "Greenwich".

Element information

Type: gml:PrimeMeridianType

Properties: Global, Qualified



gml:id [1..1]xsd:IDfrom type gml:DefinitionBaseType

Substitution hierarchy

Sample instance

<gml:PrimeMeridian gml:id="ID">
      <gml:GenericMetaData>Any text, intermingled with:
         <!--any element-->
   <gml:identifier codeSpace="">string</gml:identifier>
   <gml:greenwichLongitude uom="">1.0</gml:greenwichLongitude>

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