[GRASS-user] Shortest path for a new road

[Wolf Bergenheim]

Dylan Beaudette wrote:
> Hi Wolf,
> 
> The usual approach in GRASS for this type of problem is:
> 
> 1. define cost surface (slope is commonly used) but a distance map would work 
> as well (r.mapcalc "dist = 1")
> 

I ended up using slope + some other costs added with r.mapcalc to a cost 
surface.

> 2. create cumulative cost map (r.cost) along with the cost surface from step 1
> 

This was the crucial step that I had somehow missed. Thank you very 
much! You have made me a very happy man!

--Wolf

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<:3 )---- Wolf Bergenheim ----( 8:>