[GRASSLIST:2472] New command: s.hull

[Andrea Aime]

Hi everybody,
as Heiko Kehlenbrink pointed out, s.geom was the only command
able to compute the convex hull of a site point and now
has gone away. This weekend I have coded s.hull, a free (GPL)
replacement to compute a convex hull. Markus provided also
some nice addictions and has put it in the current CVS so
that everyone interested can use it. I've tested it a bit
with random site files and prevented some ill site file configurations
(such as trying to calculate the hull over two points only), 
everything seems to work properly.
Best regards
Andrea Aime
> 
> Hi!
> 
> I have a little problem.
> I got a site-file with a long, small echolot-survey of a part of a
> habour.
> To get the hull-vector of this file I would normally use s.geom,
> but as you know it is not longer part of GRASS because it is no free
> software.
> I solve the problem by creating a vector in v.digit by hand, but I would
> be really happy if
> GRASS could do it for me.
> 
> Regards
> 
> Heiko Kehlenbrink