[GRASS-dev] v.clean tool=rmline thresh= ?

[Hamish]

Hamish:
> > any reason why 'v.clean tool=rmline' doesn't respect thresh= to
> > remove small lines? (like rmarea) Or is it just a matter of writing
> > the code?
> >   http://trac.osgeo.org/grass/changeset/24404

Martin:
> rmline should remove only collapsed lines/boundaries (zero-length).
> To clean map geometry.
> 
> > workaround:
> >  v.db.addcol column='DOUBLE length'
> >  v.to.db option=length column=length
> >  v.extract where='length > $thresh'
> 
> or better
> 
> to remove all lines/boundaries shorter than $thresh
> v.edit a1 tool=delete query=length type=line,boundary thresh=-$thresh

Excellent. Thanks.

> longer than $thresh
> v.edit a1 tool=delete query=length type=line,boundary thresh=-$thresh

(did you mean "thresh=$thresh" or "thresh=+$thresh" ?)

> It would be possible to modify rmline tool in v.clean to be
> thresh-sensitive. Since v.edit do the job in the better way I think
> we can leave rmline as it is.

ok, but it's a bit inconsistent.


Hamish





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