MapServer 4.x; GetFeatureInfo's SRS vs CRS

[Arnaud Diederen]

Hi again,

Arnaud Diederen wrote:

> Hi Tom,
> thank you for your reply!
>
> Kralidis,Tom [Burlington] wrote:
>
>> MapServer doesn't support WMS 1.3.0, only 1.1.1 1.0.0, and some in
>> between in ad hoc fashion.
>>
>> You're GetFeatureInfo request cites version=1.3, where it should pass
>> 1.1.1.  What happens if you send a request like:
>>
>>
>> http://localhost/cgi-bin/mapserv?map=/var/www/workshop/itasca.map&SRS=EP
>> SG:4326&BBOX=-99.30245,43.4354,-87.36445,49.404399999999995&TRANSPARENT=
>> TRUE&BGCOLOR=0xFFFFFF&EXCEPTIONS=application/vnd.ogc.se_xml&WIDTH=800&HE
>> IGHT=400&LAYERS=airports&STYLES=&REQUEST=GetFeatureInfo&VERSION=1.1.1&SE
>> RVICE=WMS&INFO_FORMAT=gml&X=363&Y=121&FEATURE_COUNT=100&QUERY_LAYERS=air
>> ports
>>  
>>
> It behaves exactly the same (the results with SRS and CRS are the same).


The same as before, I mean :)

SRS -> error
CRS -> ok

Regards,
        Arnaud

>
> Regards,
>
>          Arnaud
>
>
>
>> ..Tom
>>
>>
>>  
>>
>>> Hello,
>>>
>>> When I issue a GetCapabilities on my installation of mapserver, 
>>> using the following URL:
>>>
>>> http://localhost/cgi-bin/mapserv?map=/var/www/workshop/ita 
>>> sca.map&service=WMS&version=1.3&request=GetCapabilities
>>>
>>> I get a capabilities document showing:
>>>
>>> <WMT_MS_Capabilities version="1.1.1">
>>>
>>>
>>>
>>> So, the service expects requests of version 1.1.1 of the WMS spec, 
>>> but when I issue a GetFeatureInfo with this URL:
>>>
>>> http://localhost/cgi-bin/mapserv?map=/var/www/workshop/itasca.
>>>   
>>
>> map&SRS=EPSG:4326&BBOX=-99.30245,43.4354,-87.36445,49.404399999999995&TR
>> ANSPARENT=TRUE&BGCOLOR=0xFFFFFF&EXCEPTIONS=application/vnd.ogc.se_xml&WI
>> DTH=800&HEIGHT=400&LAYERS=airports&STYLES=&REQUEST=GetFeatureInfo&VERSIO
>> N=1.3&SERVICE=WMS&INFO_FORMAT=gml&X=363&Y=121&FEATURE_COUNT=100&QUERY_LA
>> YERS=airports
>>
>> I get the following error:
>>
>> <ServiceExceptionReport version="1.1.1">
>>  <ServiceException code="InvalidSRS">
>>    msWMSLoadGetMapParams(): WMS server error. Invalid SRS given : SRS 
>> must be valid for all requested layers.
>>  </ServiceException>
>> </ServiceExceptionReport>
>>
>> hmm. But then, if I change the SRS parameter name to CRS, I get a 
>> valid (though empty) result:
>>
>> <msGMLOutput
>>     xmlns:gml="http://www.opengis.net/gml"
>>     xmlns:xlink="http://www.w3.org/1999/xlink"
>>     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
>> </msGMLOutput>
>>
>> The weird thing is that in the version 1.1.1 of the spec, there is no 
>> CRS parameter for the GetFeatureInfo, but an SRS parameter. SRS was 
>> changed to CRS at version 1.3.
>> It looks to me like a bug, am I wrong?
>>
>> Best regards,
>>
>>         Arnaud
>>
>> Last Minute Addendum: When I try with the equivalent (projected) 
>> native logical bbox, in the native SRS (EPSG:26915, this is the 
>> Itasca demo!) mapserver doesn't mind the name of the SRS param. Both 
>> SRS and CRS work.
>>
>> Now, I'm totally lost o_O
>> Will mapserver refuse to work properly if asked for features with a 4326
>>
>> box?
>>
>>
>> Thanks for any information!
>>  
>>
>>  
>>