Hi Ariel,
Not sure if I'm totally wrong but maybe it could be a simple pixel CENTER vs
pixel CORNER difference.
Usually gdalinfo shows the coordinate of the corner of the pixel. Not sure
whether the origin in describeCoverage is referred to the center too or to
the corner.
Could you check whether the difference between the value you see on WCS and
the value reported by gdal is equal to half pixel resolution?
Daniele
On Wed, Jun 1, 2011 at 6:05 PM, Ariel Nunez <[email protected]>wrote:
> Hello list,
>
> We are using GeoServer for impact calculations and noticed that the
> GeoServer WCS module is not able to report the origin attribute with
> sufficient precision (for our application) We expected (105.29857,
> -5.56523) but got (105.30417, -5.570833).
>
> Has anyone experienced a similar issue? What's a good way to start
> debugging this?
>
> Ariel.
>
> More details and a script to reproduce it (including sample data) below:
>
> https://gist.github.com/825323
>
> Using the following version of GeoServer
> version = 2.2-SNAPSHOT
> svn revision = 15968
> build date = 01-Jun-2011 03:32
> geotools version = 8-SNAPSHOT
> geotools revision = 37354
> hudson build = 725
>
> Origin obtained using gdalinfo in the original file:
> Origin = (105.298569999999998,-5.565233000000000)
>
> Origin obtained using WCS DescribeCoverage in the original file:
> <gml:pos>105.30417 -5.570833</gml:pos>
>
>
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--
-------------------------------------------------------
Ing. Daniele Romagnoli
GeoSolutions S.A.S.
Software Engineer
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 962313
http://www.geo-solutions.it
http://geo-solutions.blogspot.com/
http://www.youtube.com/user/GeoSolutionsIT
http://it.linkedin.com/in/danieleromagnoli
-------------------------------------------------------
------------------------------------------------------------------------------
Simplify data backup and recovery for your virtual environment with vRanger.
Installation's a snap, and flexible recovery options mean your data is safe,
secure and there when you need it. Data protection magic?
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