[Geoserver-devel] Problems with 900913 projection in new Versions

Hi,

I have tried to get support on this on the geoserver-users list
(http://www.nabble.com/WMS-Calls-with-SRS-900913-not-working-in-new-version-(from-1.6.3-)-to17084331.html#a17084331),
but I could not fix it. I guess this might be a bug so I am posting it here:

I changed from geoserver 1.6.0 to 1.6.3 (also to 1.7.0 alpha1 - same
result). As front end I am using openlayers (2.6). I put a layer of
geoserver over one from google, therefore I needed 'sphericalMercator':
true, - and it worked (Except it did not show russia on my map as
'wrapDateLine': true, appears not to work yet.

When I changed to 1.6.3. everything worked fine, except the calls for the
900913 projection get a blank (e.g. 256x256) png back, instead of my lovely
maps. As I did not change anything else, and everything else (that I needed
so far) works, it might be either a bug or some specs have changed (I
haven't found anything in the documentation).

What I have tried to solve the problem:
- tried out both 1.6.3 and 1.7.0 alpha 1 of geoserver
- did a whole new clean install (base system, tomcat, geoserver, postgis,
openlayers)
- played around with all options I could imagine in openlayers that produce
the calls
- I played around with the calls of the maps, e.g.:
http://www.ecoresearch.net/geoserver/wms?LAYERS=ecoresearch%3Aus2008&TRANSPARENT=TRUE&SRS=EPSG%3A900913&FORMAT=image%2Fpng&TILED=true&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&BBOX=0,6887893.491874998,626172.135625,7514065.6275&WIDTH=256&HEIGHT=256

The pasted URL works, as on that server still version 1.6.0 is running. When
I post that query to my test server that runs a newer version, I get the
blank tile png (e.g.
http://www.ecoresearch.net/geoserver/wms?HEIGHT=543&SRS=EPSG%3A4326&WIDTH=1200&STYLES=&LAYERS=ecoresearch%3Aus2008&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&BBOX=-464.06282758712814,-213.17687224745768,464.06264448165916,206.79990386366856
works on both the 1.6.0 and 1.7.0 versions - so that's checked)

What I need to know now is if that is a bug or I am simple too stupid to get
it running (of course I would then be happy to get support). If this is a
feature rather than a bug (meaning some attributes have to be changed) I
would volunteer to complement the documentation.

Thanks,
Reinhard
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