[mapserver-users] WMS request url gets misinterpreted calling on mapserver from python

[Lars Fricke]

Hi Jukka,

Thank you for the fast response. If you say there should be an image, 
maybe I'm doing something wrong in the receiving application. I will 
check on that first and then come back with the result.

Best

Lars

Am 11.02.2015 um 11:34 schrieb Rahkonen Jukka (MML):
> Hi,
>
> Do you mean that you get nothing else than those lines  into ms_errorfile ever, not valid images at all?
>
> The log entry looks good to me. The line you copied from access.log has been a success "200" with "14068" bytes sent out which fits well for a small jpeg image. Could it be that your DOP20 source data is little bit sparse and some 256x256 sized tiles just do not contain any data? Then it would be an expected result that you get those lines into your ms_error.
>
> -Jukka Rahkonen-
>
> Lars Fricke wrote:
>
> Hello List,
>
> I have a very strange effect I am stuck with. I have a python server
> (Twisted) from where I make a WMS request to Mapserver. Now the strange thing is, if I issue the request from my python server, I get a
> "msQueryByRect(): Search returned no results. No matching record(s) found." in ms_error.txt
>
> If I take the very request string from the apache access log and put it into the browser, I get a nice image as result. So I assume the BBOX may be interpreted differently depending on the client? Or can this be an encoding issue?
>
> Here's my line from access.log:
> 127.0.0.1 - - [11/Feb/2015:09:17:35 +0100] "GET /wms?SERVICE=WMS&FORMAT=image%2Fjpeg&REQUEST=GetMap&HEIGHT=256&SRS=EPSG%3A3857&VERSION=1.1.1&BBOX=1102680.5700419527%2C6719884.904662984%2C1102757.0070702378%2C6719961.341691271&LAYERS=DOP20&WIDTH=256&MAXNATIVEZOOM=20&TRANSPARENT=false
> HTTP/1.1" 200 14068 "-" "My Server"
>
> I do not see anything in the error.log of Apache at that time.
>
> Any help is highly appreciated. Thanks for taking the time!
>
> Best
>
> Lars
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