[OSGeo-Discuss] WCS/WMS accuracy tests?

[Pablo Carreira]

Hi Simone,
The issue 
http://jira.codehaus.org/browse/GEOS-3702217is not avaliable.


Pablo Torres Carreira




> Date: Wed, 27 Jan 2010 18:39:51 +0100
> Subject: Re: [OSGeo-Discuss] WCS/WMS accuracy tests?
> From: simone.giannecchini at geo-solutions.it
> To: discuss at lists.osgeo.org
> 
> Hi there,
> any feedback on this from the gdal/mapserver folks?
> Anyone looked into my findings?
> 
> Simone.
> -------------------------------------------------------
> Ing. Simone Giannecchini
> GeoSolutions S.A.S.
> Founder - Software Engineer
> Via Carignoni 51
> 55041  Camaiore (LU)
> Italy
> 
> phone: +39 0584983027
> fax:      +39 0584983027
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> 
> 
> http://www.geo-solutions.it
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> http://www.linkedin.com/in/simonegiannecchini
> http://twitter.com/simogeo
> 
> -------------------------------------------------------
> 
> 
> 
> On Thu, Dec 10, 2009 at 11:45 PM, Simone Giannecchini
> <simone.giannecchini at geo-solutions.it> wrote:
> >
> > Dear All,
> > I have spent some time investigating this isue with GeoServer trunk.
> >
> > Here:
> >
> > http://jira.codehaus.org/browse/GEOS-3702217
> >
> > you can find a quick detailed report. I am particularly interested in FrankW
> > feedback.
> >
> >
> > Ciao,
> > Simone
> >
> > Steven M. Ottens wrote:
> >>
> >>
> >> On Dec 7, 2009, at 5:47 PM, Stephen Woodbridge wrote:
> >>
> >>> Steven M. Ottens wrote:
> >>>>
> >>>> I know there have been speed tests between different WMS services,
> >>>> but I'm wondering has there been any data-quality/accuracy test been
> >>>> done between WMS and/or WCS services?
> >>>
> >>> I wonder if this is the difference between pixel as a point versus pixel
> >>> as an area. Mapserver uses gdal to handle GeoTiff files and Frank has put
> >>> a lot of effort in Gdal to handle this correctly.
> >>>
> >> That's our feeling as well. Andrea mentioned that there's an issue with
> >> different interpretations on the location of a pixel (centre vs.
> >> top-left).
> >>
> >>> Also, I'm surprised that there is any shift in mapserver because I do not
> >>> think mapserver reprojects data if the in and out projections are the
> >>> same. I can speak for the other services as I don't know how they work.
> >>
> >> I'll be doing more detailed tests tomorrow and will post an overview then
> >> with the exact versions and configurations and results if people want to
> >> reproduce them. I f people have suggestions for specific tests or
> >> configurations I'm happy to apply those if possible.
> >>
> >> Going to test with the latest Geoserver nightly, Mapserver 5.6.0-rc1,
> >> Deegree 2.3 rc1 on a windows 2003 machine. With two different GeoTIFFs
> >> (one in epsg:4326 and one in epsg:3035)
> >>
> >> Steven_______________________________________________
> >> Discuss mailing list
> >> Discuss at lists.osgeo.org
> >> http://lists.osgeo.org/mailman/listinfo/discuss
> >>
> >>
> >
> > --
> > View this message in context: http://n2.nabble.com/WCS-WMS-accuracy-tests-tp4127002p4148407.html
> > Sent from the OSGeo Discuss mailing list archive at Nabble.com.
> > _______________________________________________
> > Discuss mailing list
> > Discuss at lists.osgeo.org
> > http://lists.osgeo.org/mailman/listinfo/discuss
> >
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