[Gdal-dev] Re: gdalwarp error

[Frank Warmerdam]

Huajun Zhang wrote:
> 
> Thanks, Frank. It works now. But the cellsize of the image was changed a 
> little bit (e.g. cellsize of the original image is 14.25, the cellsize 
> is  changed to 14.33 after gdalwarp). Do you have any idea what the 
> problem is?

Huajun,

When reprojecting an image, gdalwarp needs to try and pick an apparent
appropriate pixel size in the new image which can vary a bit from the old
one.

If you want to stay with the same pixel size you can specify it explicitly
when running gdalwarp by adding "-tr 14.25 14.25" to the commandline.

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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