6.4.20 Encoding and data formats

From Geostandards

Spatial data will be accessible via download and view services.

The approach to the encoding of spatial data in INSPIRE can be summarised as follows:

• Conformant spatial data in INSPIRE conforms to the INSPIRE data specifications.
• The encoding of the spatial data in INSPIRE depends on the encoding rule chosen for the data.
• All valid encoding rules conform to EN ISO 19118.
• A default EN ISO 19136 and CEN ISO/TS 19139-based encoding is specified. Additional or alternative encoding rules may be specified for each application schema.

The encoding rules and application-schema-specific data structure schemas used within INSPIRE are published in guidance documents.

The current version of the GML application schemas is available here.

The following XML instance is an example from the INSPIRE Annex I testing based on version 2.0 of the data specifications (showing a watercourse in Norway). The example follows the general GML encoding rules, the following aspects should be highlighted:

• the encoding of a geographical name (GN:GeographicalName)
• the encoding of an INSPIRE identifier (base:Identifier)
• the encoding of localised text (gmd:LocalisedCharacterString)
• the encoding of void values (elements with xsi:nil="true")

<HY:Watercourse gml:id="Watercourse.001006033"
   xmlns:GN="urn:x-inspire:specification:gmlas:GeographicalNames:2.0" 
   xmlns:HY="urn:x-inspire:specification:gmlas:Hydrography:2.0" 
   xmlns:base="urn:x-inspire:specification:gmlas:BaseTypes:3.1" 
   xmlns:gmd="http://www.isotc211.org/2005/gmd" 
   xmlns:gml="http://www.opengis.net/gml/3.2" 
   xmlns:xlink="http://www.w3.org/1999/xlink" 
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <gml:identifier codeSpace="http://inspire.jrc.ec.europa.eu/">urn:x-inspire:object:id:NONVEHY:001.FZ</gml:identifier>
  <HY:pointOfInterest nilReason="other:unpopulated" xsi:nil="true"/>
  <HY:neighbour nilReason="unknown" xsi:nil="true"/>
  <HY:hasEmbankment nilReason="other:unpopulated" xsi:nil="true"/>
  <HY:drainsCatchment xlink:href="urn:x-inspire:object:id:NONVEHY:Basin.602"/>
  <HY:shoreline nilReason="other:unpopulated" xsi:nil="true"/>
  <HY:theHydroFacility nilReason="other:unpopulated" xsi:nil="true"/>
  <HY:hasConstruction nilReason="other:unpopulated" xsi:nil="true"/>
  <HY:beginLifespanVersion>1993-07-01T12:00:00 </HY:beginLifespanVersion>
  <HY:endLifespanVersion nilReason="unknown" xsi:nil="true"/>
  <HY:geographicalName>
    <GN:GeographicalName>
      <GN:spelling>
        <GN:SpellingOfName>
          <GN:text>MJERMA/HALDENVASSDRAGET</GN:text>
        </GN:SpellingOfName>
      </GN:spelling>
    </GN:GeographicalName>
  </HY:geographicalName>
  <HY:geometry>
    <gml:LineString gml:id="Watercourse.001006033.Geom_0">
      <gml:posList>59.9415606105 11.6855411646 59.9408389910 11.6834773297</gml:posList>
    </gml:LineString>
  </HY:geometry>
  <HY:hydroId nilReason="other:unpopulated" xsi:nil="true"/>
  <HY:id>
    <base:Identifier>
      <base:localId>001.FZ</base:localId>
      <base:namespace>NONVEHY</base:namespace>
    </base:Identifier>
  </HY:id>
  <HY:localType>
    <gmd:LocalisedCharacterString locale="urn:x-inspire:def:locale:INSPIRE:no">ElvBekk</gmd:LocalisedCharacterString>
  </HY:localType>
  <HY:origin nilReason="other:unpopulated" xsi:nil="true"/>
  <HY:persistence nilReason="other:unpopulated" xsi:nil="true"/>
  <HY:isWfdRiver nilReason="unknown" xsi:nil="true"/>
  <HY:theWfdTransitionalWater nilReason="unknown" xsi:nil="true"/>
  <HY:hasNetworkSegment nilReason="unknown" xsi:nil="true"/>
  <HY:hasGlacier nilReason="other:unpopulated" xsi:nil="true"/>
  <HY:riverbank nilReason="other:unpopulated" xsi:nil="true"/>
  <HY:foreshore nilReason="other:unpopulated" xsi:nil="true"/>
  <HY:theCrossing nilReason="other:unpopulated" xsi:nil="true"/>
  <HY:asNetworkAggregate nilReason="unknown" xsi:nil="true"/>
  <HY:hasManMadeObject nilReason="other:unpopulated" xsi:nil="true"/>
  <HY:isAdminBoundary nilReason="other:unpopulated"/>
  <HY:condition nilReason="other:unpopulated" xsi:nil="true"/>
  <HY:fictitious nilReason="other:unpopulated" xsi:nil="true"/>
  <HY:length uom="m">153.106654548 </HY:length>
  <HY:level nilReason="other:unpopulated" xsi:nil="true"/>
  <HY:tidal nilReason="other:unpopulated" xsi:nil="true"/>
  <HY:waterCourseHierarchy nilReason="other:unpopulated" xsi:nil="true"/>
  <HY:width nilReason="other:unpopulated" xsi:nil="true"/>
</HY:Watercourse>

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