[GRASS5] shortest path with r.drain?

[Jachym Cepicky]

hi,
on the costsurface, you are always seeking the best path to lowest
point.

what about to create friction surface and to search for the path on it?

jachym

On Fri, Jan 20, 2006 at 09:14:21AM +0100, benducke at compuserve.de wrote:
> How do I calculate the shortest path
> _between two given points_
> on a cost surface using r.drain?
> The manual says to use the 'vector_points=start,stop'
> Parameters, but when I do so,
> all I get is flowlines down to the lowest
> point from each of the points in both maps
> , not a least cost path _between_ them.
> Am I doing/thinking something wrong here?
> 
> Best,
> 
> Benjamin
> 
> _______________________________________________
> grass5 mailing list
> grass5 at grass.itc.it
> http://grass.itc.it/mailman/listinfo/grass5

-- 
Jachym Cepicky
e-mail: jachym.cepicky at centrum.cz
URL: http://les-ejk.cz
GPG: http://les-ejk.cz/gnupg_public_key/
-----------------------------------------
OFFICE:
Department of Geoinformation Technologies
LDF MZLU v Brně
Zemědělská 3
613 00 Brno
e-mail: xcepicky at node.mendelu.cz
URL:    http://mapserver.mendelu.cz
Tel.:   +420 545 134 514