[GRASS-PSC] SVN write access request

[Helmut Kudrnovsky]

stevenpawley wrote
> [...]
> r.tri - the terrain ruggedness index of Riley et al. (1999), which can be
> extended in the script to be calculated over 3x3 to 11x11 window sizes.
> [...]

nice contributions to the GRASS GIS addons!

looking at
https://trac.osgeo.org/grass/browser/grass-addons/grass7/raster/r.tri/r.tri.py#L57

may be some hints regarding a simplified moving window by r.mapcalc in a
python script:

https://grasswiki.osgeo.org/wiki/GRASS_Python_Scripting_Library#r.mapcalc_example:_defining_a_moving_window

or

https://trac.osgeo.org/grass/browser/grass-addons/grass7/raster/r.valley.bottom/r.valley.bottom.py#L130




-----
best regards
Helmut
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