Frank Warmerdam wrote: > > I believe you want to pass the warp option INIT_DEST=-9999 to set all > pixels that do not come from the source file to -9999. > > This is done with the -wo flag to gdalwarp. > > eg. > > gdalwarp -wo INIT_DEST=-9999 ... > Frank, is the above warp option different to dstnodata -9999 ? Hermann