[OSGeo-Discuss] WCS/WMS accuracy tests?

[Christopher Schmidt]

On Wed, Jan 27, 2010 at 04:35:59PM -0200, Pablo Carreira wrote:
> 
> Hi Simone,
> The issue 
> http://jira.codehaus.org/browse/GEOS-3702217is not avaliable.

http://jira.codehaus.org/browse/GEOS-3702

> 
> 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
> > mob:    +39 333 8128928
> > 
> > 
> > http://www.geo-solutions.it
> > http://geo-solutions.blogspot.com/
> > 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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> > http://lists.osgeo.org/mailman/listinfo/discuss
>  		 	   		  
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-- 
Christopher Schmidt
Web Developer