MapServer 4.x; GetFeatureInfo's SRS vs CRS

[Arnaud Diederen]

Hi Bart,

Bart van den Eijnden (OSGIS) wrote:

> Arnaud,
> which SRS's are you advertizing in the MAP file? You need to advertize 
> them using WMS_SRS (or the more general OWS_SRS) metadata.


In the (attached) map file -a barely modified itasca.map from the demo- 
I advertise epsg 26915, but I thought (erroneously) that the epsg 4326 
would be supported as well.
Still, I found it funny that both CRS and SRS work for valid Epsg IDs, 
and that SRS doesn't work for invalid Epsg IDs.

Regards,
         Arnaud

>
> Can you post your current MAP file?
>
> Best regards,
> Bart
>
> Arnaud Diederen wrote:
>
>> 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&TRANSPARENT=TRUE&BGCOLOR=0xFFFFFF&EXCEPTIONS=application/vnd.ogc.se_xml&WIDTH=800&HEIGHT=400&LAYERS=airports&STYLES=&REQUEST=GetFeatureInfo&VERSION=1.3&SERVICE=WMS&INFO_FORMAT=gml&X=363&Y=121&FEATURE_COUNT=100&QUERY_LAYERS=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!
>>
>>
>
>

-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: itasca.map
URL: <http://lists.osgeo.org/pipermail/mapserver-users/attachments/20060619/198a89cb/attachment.ksh>