[GRASS-dev] v.spline??

Markus Neteler neteler at itc.it
Thu Sep 21 11:50:39 EDT 2006


> On Thu, Sep 21, 2006 at 04:08:57PM +0200, Jachym Cepicky wrote:
> > hi,
> > try 
> > 
> > v.clean tool=prune
> > 
> > jachym
> > 
> > On Thu, Sep 21, 2006 at 04:00:31PM +0200, Michaela Kinberger wrote:
> > > After r.to.vect I want to make my lines a little bit smoother. But I'm 
> > > not satisfied with the options of v.clean (prune,...).
> > > So I found the attached thread in another GRASS-list. Maybe anyone knows 
> > > something about the process of the mentioned new tool for clean?
> > > 
> > > I'm also happy with an helpful other solution for genaeralizing my lines 
> > > to get a nice boundary for my interpolated areas.
> > > 
> > > lg
> > > michaela

It would be great to add the Douglas-Peucker algorithm in
lib/vector/Vlib/line.c (as derivate of Vect_line_prune() ).

The DP algorithms is available here:
http://www.ngdc.noaa.gov/mgg/shorelines/data/gshhs/version1.3/
-> gshhs_dp.c (in the package there)

Markus




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