[mapserver-users] WFS Client returns data at random with very same call

[Even Rouault]

Please include your mapfile and the wfs-request-testlayer.xml file to 
reproduce. I'm confused by the mapfile you posted yesterday that uses 
epsg:25832 and the fact that GDAL through mapserver would issue a 
GetFeature in EPSG:3857 as suggested below. I can't see how that could 
happen (given the MapServer/GDAL integration, GDAL should always request 
in the native SRS of the layer and MapServer will do the reprojection to 
the SRSNAME of the WFS request)

But as Daniel suggested using the CONNECTION WFS is probably a better 
way of doing what you want

Le 28/05/2021 à 13:13, Lars Fricke via mapserver-users a écrit :
> So here is the working not working setup. Unfortunately the working 
> OGR WFS client layers are all private so I can not share them.
>
> This call delivers objects as expected:
> http://localhost:8181/cgi-bin/mapserv?map=/var/www/html/wfs.map&SRSNAME=EPSG:3857&SERVICE=WFS&VERSION=1.1.0&REQUEST=GetFeature&Maxfeatures=10&TYPENAME=TestLayer
> This one, too:
> http://localhost:8181/cgi-bin/mapserv?map=/var/www/html/wfs.map&SRSNAME=EPSG:3857&SERVICE=WFS&VERSION=1.1.0&REQUEST=GetFeature&Maxfeatures=10&TYPENAME=TestLayer
>
> Data is delivered in the correct srs (verified manually with QGIS).
>
> This call doesn't work as described before as BBOX is not transmitted 
> to external server:
> http://localhost:8181/cgi-bin/mapserv?map=/var/www/html/wfs.map&SRSNAME=EPSG:3857&SERVICE=WFS&VERSION=1.0.0&REQUEST=GetFeature&BBOX=791880.72463009,6321925.37255709,792929.63787777,6322786.10157277&TYPENAME=TestLayer
>
> While the same direct call works:
> http://sg.geodatenzentrum.de/wfs_info?SRSNAME=EPSG:3857&SERVICE=WFS&VERSION=1.0.0&REQUEST=GetFeature&BBOX=791880.72463009,6321925.37255709,792929.63787777,6322786.10157277&TYPENAME=info:dop
> (funny, epsg 3857 is not in the capabilities but works anyhow)
>
> I hope you can find out what is going wrong. Thanks so much for 
> looking into this!
>
> Best
>
> Lars
> SkenData Email Signatur
>
>
> Am 27.05.21 um 18:28 schrieb Rahkonen Jukka (MML):
>> SkenData Email Signatur
>>
>> Hi,
>>
>> Have you already tried to use WFS connection instead of OGR connection?
>>
>> -Jukka Rahkonen-
>>
>> *Lähettäjä:* mapserver-users 
>> <mapserver-users-bounces at lists.osgeo.org> *Puolesta *Lars Fricke
>> *Lähetetty:* torstai 27. toukokuuta 2021 14.59
>> *Vastaanottaja:* mapserver-users at lists.osgeo.org
>> *Aihe:* Re: [mapserver-users] WFS Client returns data at random with 
>> very same call
>>
>> Dear all,
>> I apologize for finding and posting bits and pieces not all at one time.
>> I fired up 'CONFIG "CPL_DEBUG" "ON"' and there I see, that
>> """
>>
>> HTTP: 
>> Fetch(http://url-to-external-server?SERVICE=WFS&VERSION=1.1.0&MAXFEATURES=1000&REQUEST=GetFeature&TYPENAME=dop 
>> <http://url-to-external-server?SERVICE=WFS&VERSION=1.1.0&MAXFEATURES=1000&REQUEST=GetFeature&TYPENAME=dop>)
>> """
>> So there is no BBOX. On other layers I see
>> """
>> GDALOpen(/vsicurl_streaming/https:...
>> """
>> with BBOX.
>> No wonder I do not get reliable results if the server is calling some 
>> 1000 whatsoever result objects and starts filtering the bbox after.
>>
>> Any idea what is happening? Or is this something for a GDAL thread?
>>
>> Best
>> Lars
>>
>
>
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