Schema Central > NIEM 2.1 > temporalReferenceSystems.xsd > gml:TimeReferenceSystem
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gml:TimeReferenceSystem

A reference system is characterized in terms of its domain of validity: the spatial and temporal extent over which it is applicable. The basic GML element for temporal reference systems is gml:TimeReferenceSystem.  Its content model extends gml:DefinitionType with one additional property, gml:domainOfValidity.

Element information

Content

Attributes

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

Used in

Substitution hierarchy

Sample instance

<gml:TimeReferenceSystem 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>string</gml:domainOfValidity>
</gml:TimeReferenceSystem>

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