[OpenLayers-Users] parse GML v3 with OpenLayers.Format.GML.v3

[Alexandre Dube]

Hi,

  I'm currently trying the Protocol.WFS new features and I'm facing a 
similar problem.  I use TinyOWS 0.6.0 and OL 2.7.

  I've followed the wfs-protocol-transactions example to reproduce the 
same kind of actions ( add-modify features )  Here's the post request 
that OL produces for my application :

 <wfs:Transaction xmlns:wfs="http://www.opengis.net/wfs" service="WFS" 
version="1.0.0" outputFormat="GML2">
  <wfs:Insert>
    <feature:bdga_route_l_arc xmlns:feature="http://127.0.0.1:9999/">
      <feature:the_geom>
        <gml:MultiLineString xmlns:gml="http://www.opengis.net/gml" 
srsName="EPSG:32198">
          <gml:lineStringMember>
            <gml:LineString>
              <gml:coordinates decimal="." cs="," ts=" 
">-389909.9750701957,184819.27638712854 
-390597.89136538754,183513.99931420037</gml:coordinates>
            </gml:LineString>
          </gml:lineStringMember>
        </gml:MultiLineString>
      </feature:the_geom>
    </feature:bdga_route_l_arc>
  </wfs:Insert>
</wfs:Transaction>

  This post is very similar the the post produced by the 
wfs-protocol-transactions example.  But, the example uses Geoserver and 
no error occurs.  Tinyows gives 2 errors :

==> element Transaction: Schemas validity error : Element 
'{http://www.opengis.net/wfs}Transaction', attribute 'outputFormat': The 
attribute 'outputFormat' is not allowed.

==> element bdga_route_l_arc: Schemas validity error : Element 
'{http://127.0.0.1:9999/}bdga_route_l_arc': This element is not 
expected. Expected is one of ( {http://www.opengis.net/gml}_Feature, 
{http://www.opengis.net/wfs}FeatureCollection ).

  Both means that the schema WFS-transaction is not respected...  I 
don't know why it works with GeoServer, but I think it shouldn't.  
Normand ( one of my co-workers ) modified TinyOWS to make it ignore 
schema errors, and then it works fine.  But, I think that's not a good 
solution.  The post request should respect the schema.  It should looks 
more like Sébastien's first post, with "<gml:FeatureColletion>" and all.

  So far, I tried GML3 and also tried to edit OL code to change this 
behavior, but without success.

Any comments / suggestions / hints would be appreciated, please.

Alexandre

Eric Lemoine wrote:
> Hi Seb. I'd have expected the GML format to automatically pick the
> appropriate format version for you, but apparently not. Does your GML
> file advertise the correct version number? Cheers. Eric
>
> 2008/10/10, Sébastien Geindre <sebastien.geindre at meteo.fr>:
>   
>> It works better with :
>> <gml:featureMembers .....>
>>      <wims:tma>
>>          <wims:geometry>
>>              <gml:Polygon srsName="EPSG:4326">
>>                  <gml:exterior>
>>                      <gml:LinearRing>
>>                          <gml:posList>49.97 0.67 49.97 3.90 47.66 3.90
>> 47.66 0.67 49.97 0.67</gml:posList>
>>                      </gml:LinearRing>
>>                  </gml:exterior>
>>              </gml:Polygon>
>>          </wims:geometry>
>>      </wims:tma>
>> </gml:featureMembers>
>>
>> and
>>      var tma = new OpenLayers.Layer.GML("CDG TMA", "tmaCDG.gml",
>>      {
>>          format: OpenLayers.Format.GML.v3,
>>          formatOptions : {
>>              featureType: "tma",
>>              featureNS: "http://www.flysafe-eu.org/wims",
>>              geometryName: "geometry",
>>              srsName: "urn:x-ogc:def:crs:EPSG:4326",
>>              schemaLocation: "http://www.flysafe-eu.org/wims memo.xsd"
>>          }
>>      });
>>
>> Sébastien Geindre a écrit :
>>     
>>> hello all,
>>>
>>> In OL2.7, I try to parse a simple GML v3 feature, but it does not work.
>>>
>>>
>>> var tma = new OpenLayers.Layer.GML("CDG TMA", "tmaCDG.gml", {format:
>>> OpenLayers.Format.GML.v3});
>>>
>>> the file tmaCDG.gml :
>>>
>>> <?xml version="1.0" encoding="URF-8"?>
>>> <gml:FeatureCollection xmlns:gml="http://www.opengis.net/gml">
>>> 	<gml:featureMember>
>>> 		<gml:Polygon srsName="EPSG:4326">
>>> 			<gml:exterior>
>>> 				<gml:LinearRing>
>>> 					<gml:posList>49.97 0.67 49.97 3.90 47.66 3.90 47.66 0.67 49.97
>>> 0.67</gml:posList>
>>> 				</gml:LinearRing>
>>> 			</gml:exterior>
>>> 		</gml:Polygon>
>>> 	</gml:featureMember>
>>> </gml:FeatureCollection>
>>>
>>> The file is well-parsed but features in GML.js line 139 is empty...
>>> this.readNode(elements[i], {features: features});
>>>
>>> is there any example of parsing GML v3 ?
>>>
>>> thanks
>>>
>>>
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>>>
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-- 
Alexandre Dubé
Mapgears
www.mapgears.com