Helmut Kudrnovsky wrote > hi devs, > > I've added a script [1] with following calculations ideas: > > - do some calculations with r.slope.aspect output > - coarse the resolution (but meet the DEM extent) > - do some calculations with r.slope.aspect output at the coarser > resolution > - coarse the resolution again (but meet the DEM extent) > - do some calculations with r.slope.aspect output at the again coarser > resolution > - combine all the results for some index calculation > > as the extent of the r.slope.aspect output is 1 pixel less then DEM input, > the extent of the calculation output shrinks from one step to the next as > the resolution is coarsening. > > any idea how to overcome such a shrinking? > > [1] > http://trac.osgeo.org/grass/browser/grass-addons/grass7/raster/r.valley.bottom/r.valley.bottom.py
for illustrating a screenshot (resolution coarsening: 30x30 -> 90x90 -> 270x270) <http://osgeo-org.1560.x6.nabble.com/file/n5179919/test.png> in the screenshot: original extent of the input DEM and extent of the script output. any ideas? ----- best regards Helmut -- View this message in context: http://osgeo-org.1560.x6.nabble.com/r-slope-aspect-one-pixel-less-in-the-output-at-the-border-shrinks-region-extent-in-further-calculatis-tp5179874p5179919.html Sent from the Grass - Dev mailing list archive at Nabble.com. _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
