gdalwarp does have -tap which may be of some use. Quoting the doc page: -tap:(GDAL >= 1.8.0) (target aligned pixels) align the coordinates of the extent of the output file to the values of the -tr, such that the aligned extent includes the minimum extent.
Best Regards, Eli On Tue, Jun 4, 2013 at 12:35 AM, Ari Jolma <ari.jo...@gmail.com> wrote: > JM, > > Looks to me that GDAL has clipped to the nearest pixel boundaries and not to > the window you have provided. This is probably a feature. Maybe gdalwarp > would do the kind of resampling you wish, but I'm not sure. > > Regards, > > Ari > > > On 06/03/2013 03:37 PM, JM wrote: > > Hello List. > > > > At first i wanna thanks for the great work you are doing with the gdal > library. It is a source of great tools and opportunities for spatial issues > which whom i involed in. > > > > Among others i am using the commandline tool gdal_translate for clipping > raster files via the following example command: > > > > gdal_translate -projwin 13.6666664938 53.2000002428 > 13.8333334784 53.1000017686 source.tif target.tif > > > > The source tif is already georeferenced (EPSG:4326). I would now assume that > the boundingbox of the following GTiff is somethink like this: > > > > Lower Left: 13.6666664938 53.1000017686 > > Upper Right: 13.8333334784 53.2000002428 > > > > Instead it is something like this (the full gdalinfo dialog you can see in > the attach to this mail): > > > > Lower Left: 13.6666610463 53.1000244672 > > Upper Right: 13.8333191458 53.2000151873 > > > > So there is a small imprecision in the clipping result. My question is now > if this imprecision is normal (maybe a result of rounding operations within > the clipping process) or if i do something wrong (do i miss something in my > command). > > > > I am using libgdal1 version 1.9.0-3.1ubunut1. Looking forward to hearing > from you. > > > > Kind regards, > > > > JM > > > > > > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/gdal-dev > > > > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/gdal-dev _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev