[GRASS-user] Viewsheds

[PA Light]

Hi GRASS list,

We are conducting some viewshed analyses at work. We have been using MF 
Works for this, but it appears as though it does not account for the 
curvature of the Earth. Before I recommend to my boss that we use GRASS for 
this, I wanted to confirm that r.los does, in fact, account for the Earth's 
curvature. Unfortunately, the online manpage makes no mention of it, so I 
was wondering if anyone can tell me if it does or doesn't.

Thanks in advance.

Paul