[GRASS-user] r.los questions

[gary]

I ended up having to install the cumulative viewshed analysis for 
lat/lon. I would appreciate if someone could write up how to do the 
reprojection so that I could use r.los with lat/lon. Don't be afraid to 
dumb it down.

Brad Douglas wrote:
> On Sun, 2007-07-29 at 18:54 +0300, atlasis at telecom.ntua.gr wrote:
>> 1. Is there an estimation of the time that r.los will be implemented for
>> Lat-Long projections too?
> 
> Not really.  It's on my list of 100000 things to do...very low on the
> list.  Not terribly difficult to implement, but my time is being used
> elsewhere. :(
> 
>> 2. Is there a similar module, or a way usinf r.los, to compute los
>> coverage in a specific altitude above the ground (i.e. 2000m)?
> 
> r.los obs_height=2000 in=in_map out=out_map coord=x,y
> 
> option "obs_height" is your height above ground.
> 
> Unless I'm working with a large region, I find it generally best to
> reproject in a more specific projection/datum.  It does depend somewhat
> on the data I'm working with, though.
> 
>