[GRASS-dev] Re: [GRASS-user] v.clean tool=prune - 'thresh' interpreted wrong?

[Moritz Lennert]

Maciej Sieczka wrote:
> Moritz Lennert wrote:
> 
>> To echo Hamish' question: Do you need to remove vertices from lines
>> without changing the form of the line, or do you want to generalize the
>> form of the line (in the way that is shown here:
>> http://mpa.itc.it/markus/como2006/img9.html ?
> 
> The latter. I want to remove all the vertices that are distant from the
> line starting node not more than the give thresh. A line:
> 
> x--o1-o2-->----o3--x
> 
> "x" - node
> "o" - vertex
> ">" - line direction
> "-" - 1 length unit
> 
> thresh=3 would remove o1, thresh=5 the o1 and o2 and so on

This sounds like something still different, as you make it dependent on 
the starting node. I don't think that the prune tool was ever thought to 
work this way.

Moritz