[Geotiff] User defined datum: Transformation parameters

Pierre Soille Pierre.Soille at jrc.it
Mon Mar 3 03:32:35 EST 2008


Hello Christian,

Christian Zietz wrote:
> Frank Warmerdam schrieb:
>
>   
>> It would be convenient if you could also supply a small sample file
>> demonstrating the new geokey.
>>     
>
> OK, here is a sample file for GeogToWGS84GeoKey placed into the public
> domain: <http://www.chzsoft.com.ar/storage/GeogToWGS84GeoKey5.zip>
>
> Note however, that the file won't stay at that URL indefinitely.
>
> BTW: Can it be that the calculation of the corner coordinates by listgeo
> is wrong for RasterPixelIsPoint files? I switched to RasterPixelIsArea
> for my test file to avoid any ambiguities.
>
>   
I also believe that the corner coordinates generated by listgeo
are wrong for RasterPixelIsPoint.  This issue is still pending,
see the previous threads (with a tentative patch in the second):

http://lists.maptools.org/pipermail/geotiff/2006-January/000212.html
http://lists.maptools.org/pipermail/geotiff/2006-January/000213.html

I submitted the error report along with my patch to

http://bugzilla.remotesensing.org/enter_bug.cgi?product=libgeotiff

but the link/ http://bugzilla.remotesensing.org/show_bug.cgi?id=1040/ does not seem
to be active anymore.

See also comments on this issue by Frank in
http://lists.maptools.org/pipermail/geotiff/2006-March/000259.html


Regards,

Pierre





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