[mapserver-users] Problem using WMS GetFeatureInfo in OpenLayers with different projections

[thomas bonfort]

I believe this was fixed in https://github.com/mapserver/mapserver/pull/4403
https://github.com/mapserver/mapserver/pull/4778 might also be relevant.

On 14 February 2014 10:24, Dejan Gambin <dejan.gambin at coin.hr> wrote:
> I've upgraded to 6.4 and seems fine now
>
>
> On 13. vel. 2014., at 16:09, Rahkonen Jukka (Tike) wrote:
>
>> Hi,
>>
>> Just to eliminate one possibility, is the result the same if you use one DEM raster as a source instead of tileindex?
>>
>> -Jukka Rahkonen-
>>
>> Dejan Gambin wrote:
>>
>>> Since I didn't solve this yet, do you think it could be a bug and/or should I try
>>> with some newer MapServer version? I am currently using 6.0.3
>>>
>>> Thx
>>>
>>> Dejan Gambin
>>>
>>> On 22. sij. 2014., at 10:35, Dejan Gambin wrote:
>>>
>>>> Sorry for being late...
>>>>
>>>> So, I have tested it all with browser of course. Here are some working and
>>> non-working requests:
>>>>
>>>> Mapfile part:
>>>>
>>>> PROJECTION
>>>>   "init=epsg:4326"
>>>> END
>>>> METADATA
>>>>   "wms_srs"   "EPSG:4326"
>>>>   "wms_title"  "aster_dem"
>>>>   "gml_include_items" "value_0"
>>>>   "gml_value_0_alias" "Nadmorska_visina"
>>>> END
>>>> TILEINDEX "../aster/aster_index"  #original raster in 4326
>>>>
>>>>
>>>> Working GetMap request in 900913:
>>>>
>>>> http://mydomain.com/cgi-
>>> bin/mywms/?SERVICE=WMS&VERSION=1.1.1&REQUEST=G
>>>>
>>> etMap&LAYERS=aster_dem_info&STYLES=&SRS=EPSG:900913&FORMAT=image
>>> /png&W
>>>>
>>> IDTH=400&HEIGHT=300&BBOX=1496080.301904,5576310.226428,1593919.698
>>> 096,
>>>> 5649689.773572
>>>>
>>>> Non-working GetFeatureInfo request in 900913:
>>>>
>>>> http://mydomain.com/cgi-
>>> bin/mywms/?SERVICE=WMS&VERSION=1.1.1&REQUEST=G
>>>>
>>> etFeatureInfo&LAYERS=aster_dem_info&STYLES=&SRS=EPSG:900913&FORMAT
>>> =ima
>>>>
>>> ge/png&WIDTH=400&HEIGHT=300&BBOX=1496080.301904,5576310.226428,1
>>> 593919
>>>>
>>> .698096,5649689.773572&QUERY_LAYERS=aster_dem_info&INFO_FORMAT=g
>>> ml&X=2
>>>> 00&Y=100
>>>>
>>>> Working GetMap request in 4326:
>>>>
>>>> http://mydomain.com/cgi-
>>> bin/mywms/?SERVICE=WMS&VERSION=1.1.1&REQUEST=G
>>>>
>>> etMap&LAYERS=aster_dem_info&STYLES=&SRS=EPSG:4326&FORMAT=image/p
>>> ng&WID
>>>> TH=400&HEIGHT=300&BBOX=13.439518,44.712096,14.318424,45.178647
>>>>
>>>> Working GetFeatureInfo request in 4326:
>>>>
>>>> http://mydomain.com/cgi-
>>> bin/mywms/?SERVICE=WMS&VERSION=1.1.1&REQUEST=G
>>>>
>>> etFeatureInfo&LAYERS=aster_dem_info&STYLES=&SRS=EPSG:4326&FORMAT=i
>>> mage
>>>>
>>> /png&WIDTH=400&HEIGHT=300&BBOX=13.439518,44.712096,14.318424,45.17
>>> 8647
>>>> &QUERY_LAYERS=aster_dem_info&INFO_FORMAT=gml&X=200&Y=100
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On 17. sij. 2014., at 13:52, Rahkonen Jukka (Tike) wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> Please show us the complete GetFeatureInfo requests for both cases. Server
>>> urls are not interesting but all the WMS parameters. Have you already tried to
>>> send them from browser? Testing with OpenLayers is waste of time because you
>>> can't control what really happens but with hand written requests you are the
>>> master.
>>>>>
>>>>> -Jukka Rahkonen-
>>>>>
>>>>>
>>>>> Lars Lingner wrote:
>>>>>>
>>>>>> On 17.01.2014 11:10, Dejan Gambin wrote:
>>>>>>>> What is the mywms? MapServer binary, wrapper script, ...?
>>>>>>> wrapper script. Something like:
>>>>>>>
>>>>>>> #! /bin/sh MS_MAPFILE=/path_to_my_map_file export MS_MAPFILE
>>>>>>> /usr/lib/cgi-bin/mapserv6
>>>>>>>
>>>>>>
>>>>>> AFAIK nothing wrong here.
>>>>>>
>>>>>>>>
>>>>>>>> Did you check the actual requests? Does the bbox parameter fit to
>>>>>>>> the srs? Could you compare a working GetFeatureInfo request in
>>>>>>>> 900913 with a failing one in 4326?
>>>>>>> Yes, bbox parameter fits to srs in both cases. So, if I put
>>>>>>> bbox/srs params in 426 everything works, if I put them in 900913
>>>>>>> then error happens
>>>>>>
>>>>>> Does other maps work with 900913?
>>>>>>
>>>>>> I would check which pro4 epsg file mapserver is using, check if
>>>>>> there is a definition for 90013 and if it looks like
>>>>>>
>>>>>> +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0
>>>>>> ++y_0=0
>>>>>> +k=1.0 +units=m +nadgrids=@null +wktext  +no_defs
>>>>>>
>>>>>> On the other hand, if GetMap ist working fine, projection definition
>>>>>> should be fine too. Just thinking out loud...
>>>>>>
>>>>>>
>>>>>>>>
>>>>>>>> Raise the debug level to 3 at map level and layer level. You can
>>>>>>>> let MapServer write its own error logfile, so your apache log
>>>>>>>> stays clean.
>>>>>>
>>>>>> Could you find anything in the MapServer log file?
>>>>>>
>>>>>> Here I would identify a working 4326 GFI request and compare the
>>>>>> corresponding log with a 900913 request. There should be a difference.
>>>>>>
>>>>>>
>>>>>> Best wishes,
>>>>>>
>>>>>> Lars
>>>>>>
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