[GRASS-user] r.watershed resolution issue

[Hamish]

Justin Cole wrote:
> I am using r.watershed module in GRASS 6.4
> running in QGIS 1.4 and every time I run it I get the result
> very quickly but it is very course.  I have tried it in
> both windows and mac working and they give the same result.
>  I cannot tell if I am doing something wrong but I need to
> figure out how to get the same result but to match the rest
> of the data so I can do other calculations on it.  I am
> using LiDAR data of 5ft per pixel.  

check that the computational region settings are set to match the 5ft/pixel.
(g.region) This isn't done automatically.

also check that the threshold setting is set to something appropriate.


Hamish