[GRASS-user] IN: raster-flow-direction OUT:vector-network?

[Hamish]

achim wrote:
> I am searching for a good idea to convert a
> raster-flow-direction map into a vector-network map.
> 
> Probably I will have to write a script. If it is possible
> at all...
> 
> In case of writing a script it mean to me: how to produce a
> line within r.mapcalc?
> 
> Has anyone a hint?

the process of converting an accumulation flow map to a vector
streams map is described in the Examples section of the
r.watershed help page:

http://grass.osgeo.org/grass64/manuals/html64_user/r.watershed.html


If I understand it correctly you are starting with an aspect
map?



Hamish