[GRASSLIST:1990] Re: Aspect and Shaded relief

[mlennert at club.worldonline.be]

I don't know if I understand your question exactly (do you want 2D or 3D ?), 
but have you looked at nviz ? It allows you to look at a 3D landscape from 
wherever you want and with adjustable lighting.

Moritz

> Hello everybody!
> 
> With Arcview and some others, it is possible to make a nice picture of the
> relief called 'sheade relief' or something, where you can choose the
> orientation and hight of the light source (sun). There is also something
> called aspect map, but it only gives a result of slope orientation without
> accounting for inclination (thus you get a look of V shaped valleys instaed
> of U shaped, fo rinstance).
> 
> I know about and until now used grass ASPECT map to get more or less a
> shaded relief.  I didn't find any module that seams to allow making shaded
> reliefs like in arcview or so.
> 
> I am wondering, did I miss something or deos it not exist in grass yet?
> I that's the case, I guess it should be possible to compute something with
> slope and aspect map, and wonder if someone has an idea how that is done
> (what algorithms or whatever needed)?
> 
> Thanx in advance for your help
> In Kindness
> Karine
> 
>