[GRASS-user] eliminate some lines

[Hamish]

Moritz Lennert wrote:
> > When I looked at v.to.db, I thought whether I could calculate
> > the "length of a polygon" as well.
> 
> Depends on the polygon. If it defined as a boundary, then try setting
> type=boundary and option=length
> 
> If it is an area then type=area and option=perimeter


note "v.clean tool=rmarea thresh=.. " is prefered for removing small
areas, as polygon boundary length is a fractal problem.



Hamish