[GRASSLIST:5862] Re: vector point cropping

[RAVI KUMAR]

Thanks for the solution.
I will try..
 But in GRASS60
Iam unable to
 cut a area vector with a points vector
 to result in only vectors that contain points.
I find that the result area has vector even not
including any points.
IS THERE A SNAP LIMIT OR WHAT??
Ravi 



--- Hamish <hamish_nospam at yahoo.com> wrote:

> > GRASS60, I tried cropping 
> > area vector with points but failed.
> > in GRASS5.7 it was OK.
> 
> more details are needed. Exact commands? Exact
> output? Can you reproduce
> it with the spearfish57 data set?
> 
> 
> 
> > > I have a points-vector & I want to cut out all
> > > points that fall within a polygon.
> > > 
> > > In GRASS 5.4 you could use s.mask to do this.
> > > 
> > > 
> > > In GRASS 5.7, v.select looks like it would work
> if
> > > there was a "operator=not" option [for v.select]
> or if v.overlay
> > > worked for points.
> > >
> > > Any ideas?
> > >
> > > Hamish
> 
> Solution:
> 
> [v.hull +] v.in.region + 'v.overlay operator=not' to
> make a negative
> mask of a the polygon, and then 'v.select
> op=overlap' to only keep the
> points in the negative-mask.
> 
> 
> Hamish
> 



		
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