Schema Central > NIEM 3.1 > dynamicFeature.xsd > gml:DynamicFeature
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gml:DynamicFeature

States are captured by time-stamped instances of a feature. The content model extends the standard gml:AbstractFeatureType with the gml:dynamicProperties model group.
Each time-stamped instance represents a 'snapshot' of a feature. The dynamic feature classes will normally be extended to suit particular applications.  A dynamic feature bears either a time stamp or a history.

Element information

Type: gml:DynamicFeatureType

Properties: Global, Qualified

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:AbstractGMLType

Used in

Substitution hierarchy

Sample instance

<gml:DynamicFeature 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:boundedBy>
      <gml:Envelope>
         <gml:lowerCorner>1.0 1.0</gml:lowerCorner>
         <gml:upperCorner>1.0 1.0</gml:upperCorner>
      </gml:Envelope>
   </gml:boundedBy>
   <gml:location>
      <gml:MultiGeometry 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:geometryMember>...
         </gml:geometryMember>
         <gml:geometryMembers>...
         </gml:geometryMembers>
      </gml:MultiGeometry>
   </gml:location>
   <gml:validTime>
      <gml:TimeInstant 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:relatedTime>...
         </gml:relatedTime>
         <gml:timePosition>12:00:00</gml:timePosition>
      </gml:TimeInstant>
   </gml:validTime>
   <gml:history>
      <gml:MovingObjectStatus 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:validTime>...
         </gml:validTime>
         <gml:dataSource>string</gml:dataSource>
         <gml:position>...
         </gml:position>
         <gml:speed uom="">1.0</gml:speed>
         <gml:bearing>...
         </gml:bearing>
         <gml:acceleration uom="">1.0</gml:acceleration>
         <gml:elevation uom="">1.0</gml:elevation>
         <gml:status>string</gml:status>
         <gml:statusReference/>
      </gml:MovingObjectStatus>
   </gml:history>
   <gml:dataSource>string</gml:dataSource>
   <gml:dataSourceReference/>
</gml:DynamicFeature>

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