gml:history

A generic sequence of events constitute a gml:history of an object.
The gml:history element contains a set of elements in the substitution group headed by the abstract element gml:AbstractTimeSlice, representing the time-varying properties of interest. The history property of a dynamic feature associates a feature instance with a sequence of time slices (i.e. change events) that encapsulate the evolution of the feature.

Element information

Content

from subst. group gml:AbstractTimeSlice
gml:MovingObjectStatus [1..*]

Attributes

Used in

• Group gml:dynamicProperties
• Type gml:DynamicFeatureCollectionType via reference to gml:dynamicProperties (Element gml:DynamicFeatureCollection)
• Type gml:DynamicFeatureType via reference to gml:dynamicProperties (Element gml:DynamicFeature)

Substitution hierarchy

• gml:history
  • can be substituted with gml:track

Sample instance

<gml:history>
   <gml:MovingObjectStatus 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:validTime>
         <gml:TimeInstant gml:id="ID">...
         </gml:TimeInstant>
      </gml:validTime>
      <gml:dataSource>string</gml:dataSource>
      <gml:position>
         <gml:MultiGeometry gml:id="ID">...
         </gml:MultiGeometry>
      </gml:position>
      <gml:speed uom="">1.0</gml:speed>
      <gml:bearing>
         <gml:DirectionVector>...
         </gml:DirectionVector>
      </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>