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

[Even Rouault]

oops, sorry, didn't notice 😅

Le 28/05/2021 à 13:52, Lars Fricke a écrit :
> I put in the files as attach. Is that filtered?
> SkenData Email Signatur
>
> Am 28.05.21 um 13:43 schrieb 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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>>> mapserver-users at lists.osgeo.org
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>> -- 
>> http://www.spatialys.com
>> My software is free, but my time generally not.
>
-- 
http://www.spatialys.com
My software is free, but my time generally not.

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