Thank you, Etienne, for writing this code. I greatly appreciate it! I updated my svn checkout, then applied your patch with no errors. I tried to warp my landcover files which use color tables (which is why mode is so important to me) and they did not work. Here is the output:
jmt@nala:~/git/mathuin/TopoMC$ /home/jmt/svn/gdal/apps/.libs/gdalwarp --debug -multi -tr 6 6 -te 2087232 2395968 2104512 2410176 -r mode regions/Provincetown/Datasets/L1L.tif L1L-new.tif Copying color table from regions/Provincetown/Datasets/L1L.tif to new file. Creating output file that is 2880P x 2368L. Processing input file regions/Provincetown/Datasets/L1L.tif. Warning: Input file regions/Provincetown/Datasets/L1L.tif has a color table, which will likely lead to bad results when using a resampling method other than nearest neighbour. Converting the dataset prior to 24/32 bit is advised. ERROR 5: GDALWarpOptions.Validate() eResampleArg=6 is not a supported value. jmt@nala:~/git/mathuin/TopoMC$ Let me know if I can provide any additional information to help you out! Jack. -- mathuin at gmail dot com On Sun, Apr 7, 2013 at 1:19 PM, Etienne Tourigny <[email protected]>wrote: > I have implemented mode and average warping algorithms, based on those > used in overview creation. > > http://trac.osgeo.org/gdal/ticket/5049 > > This code has been tested on a few datasets (see attachments) with all > datatypes (Byte, Int, Float) but not all cases have been looked into (e.g. > color tables, various projections). > > Any feedback and testing would be appreciated. > > Cheers > Etienne > > > On Wed, Mar 27, 2013 at 6:13 PM, John Twilley <[email protected]> wrote: > >> I'm interested in this feature request as well. Adding the mode >> resampling algorithm to gdalwarp would be very beneficial to my projects, >> right up there with being able to access the warp API from Python. Is this >> at all possible? Should I submit a feature request on Trac, or what? Just >> let me know! >> >> Jack. >> >> -- >> mathuin at gmail dot com >> >> >> On Mon, Feb 18, 2013 at 8:17 AM, Jan Hartmann <[email protected]>wrote: >> >>> >>> Hi devs, >>> >>> Would it be possible to add gauss and other interpolations to gdalwarp? >>> At the moment I georeference large scans to 2000*2000 tiles at the most >>> detailed scale, and then create 2000*2000 tiles at resolutions of 2, 4 6 >>> etc times the original scale, using gdaladdo and gauss or other >>> interpolations. It would help immensely if I could do that directly with >>> gdalwarp. >>> >>> >>> Funding would probably no problem. The question is: can and should it be >>> done? >>> >>> Jan >>> >>> >>> >>> _______________________________________________ >>> gdal-dev mailing list >>> [email protected] >>> http://lists.osgeo.org/mailman/listinfo/gdal-dev >>> >> >> >> _______________________________________________ >> gdal-dev mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/gdal-dev >> > >
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