[GRASS-user] r.sun for selected points

[Tyler Smith]

On Thu, Aug 14, 2014, at 02:42 AM, roy wrote:
> 
> Il 13/08/2014 22:46, Tyler Smith ha scritto:
> >   but I can't figure
> > out how to limit the analysis to these spots. Is it possible? Does
> > anyone have any suggestions?
> >
> 
> you sure can use the region settings and the r.mask GRASS module to
> limit the analysis area:
> 
> use
> "g.region" and "r.mask"
> 

Thanks Roy.

I've tried this. However, the spread of my points covers most of the
area involved. So I can't reduce the total area very much, especially
when I need to keep a buffer around the points for r.horizon. What I'm
looking for is a way to tell GRASS to calculate r.horizon values only
for a list of points, rather than an area. And for the second step, to
calculate r.sun beam values using the same points.

Best,

Tyler