[GRASS-user] r.clump with diagonal cells

[Markus Neteler]

On Mon, Jan 13, 2014 at 12:39 PM, Johannes Radinger
<johannesradinger at gmail.com> wrote:
> Dear all,
>
> I just tried r.clump on a rastarized river with alternating patches of good
> and bad habitat (values 1 and 2). However, due to its linear structure, many
> cells of the same habitat patch are often only diagonally connected. So this
> is a case where r.clump does not work (as stated in its manual).
>
> So, as a suggestion, it'd be nice if also diagonal cells could be considered
> by r.clump (e.g. by setting a flag).

Note that there is a more modern version here:

http://grasswiki.osgeo.org/wiki/AddOns/GRASS_6#r.clump2

http://grasswiki.osgeo.org/wiki/AddOns/GRASS7/raster#r.clump2

Markus