[GRASS-user] movement direction surface in r.drain

Mohammed Rashad mohammedrashadkm at gmail.com
Sat Dec 22 13:30:12 PST 2012


Hi,

I made some modifications to the r.drain code (direction part) which gave
me the following output?

Is this correct?. If so I can finish polishing it ;)

Please see the attachments in the ticket[0]

[0] http://trac.osgeo.org/grass/ticket/1840

input
http://trac.osgeo.org/grass/attachment/ticket/1840/d.rast.num_input.png

output
http://trac.osgeo.org/grass/attachment/ticket/1840/d.rast.output.png
http://trac.osgeo.org/grass/attachment/ticket/1840/d.rast.rum.output.png






On Sat, Dec 22, 2012 at 7:13 PM, Markus Neteler <neteler at osgeo.org> wrote:

> On Wed, Dec 19, 2012 at 3:25 PM, Margherita Di Leo <diregola at gmail.com>
> wrote:
> > Hi All,
> >
> > I have a friction map, a start polygon and an end polygon and would like
> to
> > find the least cost path, meaning not a corridor but a thin line.
>
> I tried the r.drain example from the manual page to no avail:
>
> http://trac.osgeo.org/grass/ticket/1840
>
> Test data in GRASS 7 source code:
> http://trac.osgeo.org/grass/browser/grass/trunk/raster/r.drain/tests
>
> Markus
> _______________________________________________
> grass-user mailing list
> grass-user at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/grass-user
>



-- 
Regards,
   Rashad
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