Mapserver-4.4.0-beta2 wms client renderin g problem

Lars Holm Loldrup LLO at CARLBRO.DK
Wed Nov 10 11:51:52 EST 2004


I filed a bug: http://mapserver.gis.umn.edu/bugs/show_bug.cgi?id=1050
with  a simple setup to reproduce the error.

/Lars

> Lars Holm Loldrup wrote:
> > Rendering a wms client layer, the image is slight distorted, and shifted
> > 1 pixel north-west - se the attached images: 1.png is the original from
> > the wms-server, and 2.png is the resulting image that mapserver
> > generates.
> >
> > Observerd on my own win32 build & on the win32 version from
> > http://dl.maptools.org/dl/
>
> Lars,
>
> OK, I see the resulting problem.  Can you file a bug (and have it assigned
> to me) that shows the steps to reproduce this?  Ideally a mapfile with
just
> the WMS layer, and a mapserv request that will generate the slightly
offset
> result.
>
> I *suspect* that the world file attached internally to images fetched from
> remote WMS'es is off by half a pixel and this is causing a sampling error
> or offset.
>
> > BTW. The true color bug
> > http://mapserver.gis.umn.edu/bugs/show_bug.cgi?id=468
> > seems to be resolved in beta2.
>
> OK, I have close it now.
>
> Best regards,
> --
>
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