GML

From MapbenderWiki

GML translates into Geographic Markup Language. It is the standardized format for geographic features. The current version is GML2 but GML3 is already well under way. As it is with all standards the new GML3 is heavily complex and currently there is no single software package available that implements all of GML3.

This is GML document contains a postal code area (53111 Bonn) and is simple example of a GML2 feature that has been rendered by a UMN MapServer OGC WFS installation operated by WhereGroup:

(the format of the GML has been modified for HTML presentation in this Wiki and might not conform to the specification)

<?xml version='1.0' encoding="ISO-8859-1" ?>  
<wfs:~FeatureCollection  
   xmlns="!http://www.ttt.org/myns"  
   xmlns:myns="!http://www.ttt.org/myns"  
   xmlns:wfs="!http://www.opengis.net/wfs"  
   xmlns:gml="!http://www.opengis.net/gml"  
   xmlns:ogc="!http://www.opengis.net/ogc"  
   xmlns:xsi="!http://www.w3.org/2001/XMLSchema-instance"  
   xsi:schemaLocation="!http://www.opengis.net/wfs ../wfs/1.0.0/WFS-basic.xsd   
                       !http://www.ttt.org/myns  
                       !http://wms1.ccgis.de/cgi-bin/mapserv?
                               map=/data/umn/germany_demo/germany_demo_wfs.map&  
                               SERVICE=WFS&  
                               VERSION=1.0.0&  
                               REQUEST=~DescribeFeatureType  
                               TYPENAME=Postleitzahlbereiche">  
      <gml:boundedBy>  
      	<gml:Box srsName="epsg:31467">  
      		<gml:coordinates>  
      			-1.000000,-1.000000 -1.000000,-1.000000  
      		</gml:coordinates>  
      	</gml:Box>  
      </gml:boundedBy>  
    <gml:featureMember>  
      <Postleitzahlbereiche>  
        <gml:boundedBy>  
        	<gml:Box srsName="epsg:31467">  
        		<gml:coordinates>  
        			7.089682,50.732651 7.113803,50.749050  
        		</gml:coordinates>  
        	</gml:Box>  
        </gml:boundedBy>  
        <gml:polygonProperty>  
          <gml:Polygon srsName="epsg:31467">  
          	<gml:outerBoundaryIs>  
          		<gml:~LinearRing>  
          			<gml:coordinates>  
          				3365496.566430,5624978.448441 
          				3365521.124423,5625013.908323  
          				3365565.223312,5625084.526916  
          				3365629.214635,5625160.583843   
          				3365723.363724,5625232.038551  
          				3365777.825572,5625277.769189  
          				3365867.287406,5625324.293319  
          				3366081.776121,5625376.954252  
          				3366242.558916,5625409.342895  
          				3366447.711508,5625422.348649  
          				3366677.856852,5625435.565091   
          				3366826.787403,5624801.669664   
          				3366855.035066,5624566.573031   
          				3366925.451142,5624182.224968   
          				3366715.750264,5624144.261254   
          				3366650.863977,5624128.508596   
          				3366600.955317,5624112.804621   
          				3366531.383108,5624081.886701   
          				3366506.401347,5624071.486493   
          				3366442.053224,5624025.159618   
          				3366392.576627,5623979.714963   
          				3366347.846258,5623958.781918   
          				3366303.629382,5623898.347600   
          				3366254.562142,5623822.330657   
          				3366204.783816,5623801.958859   
          				3366170.529172,5623746.359034   
          				3366096.979434,5623625.121634   
          				3365763.215463,5623795.455427   
          				3365500.779929,5623942.335246   
          				3365218.803228,5624068.496482   
          				3365237.785434,5624138.909926   
          				3365251.877503,5624209.028949   
          				3365265.770476,5624284.252033   
          				3365279.898174,5624354.790930   
          				3365313.834894,5624430.338190   
          				3365342.788540,5624515.791264   
          				3365381.492255,5624611.601424   
          				3365424.880011,5624732.334672   
          				3365458.518013,5624832.944095   
          				3365502.496403,5624908.664231   
          				3365531.735324,5624963.958282   
          				3365496.566430,5624978.448441   
          			</gml:coordinates>  
          		</gml:~LinearRing>  
          	</gml:outerBoundaryIs>  
          </gml:Polygon>  
        </gml:polygonProperty>  
        <gid>3695</gid>  
        <oid>15223704</oid>  
        <plz99>53111</plz99>  
        <item_plz>53111</item_plz>  
        <buffer_>500</buffer_>  
      </Postleitzahlbereiche>  
    </gml:featureMember>  
</wfs:~FeatureCollection>