[GRASS-user] Merging Boundaries and Centroids

["Peter Löwe"]

The "v.patch -a --o" sequence is just what was needed.

Thank you !

Peter
-------- Original-Nachricht --------
> Datum: Fri, 20 Mar 2009 12:53:46 +0200
> Von: Micha Silver <micha at arava.co.il>
> An: Moritz Lennert <mlennert at club.worldonline.be>
> CC: peter.loewe at gmx.de, grass-user at lists.osgeo.org
> Betreff: Re: [GRASS-user] Merging Boundaries and Centroids

> Hi Moritz:
> Thanks for the corrections.
> -- 
> Micha
> 
> Moritz Lennert wrote:
> >
> >>>  
> >> You can do this with v.patch, *provided* that both vectors have 
> >> equivalent attribute table columns.
> >
> > If you can use the append flag (-a) you don't need to have matching 
> > tables. Just v.patch -a input=LayerA output=LayerB.
> >
> >
> > From the man page:
> >
> > columns=name
> >     Column definition in SQL style (points mode)
> >
> > So, not possible for lines/areas. I guess this is due to the more 
> > complicated file format for lines and areas which makes it difficult 
> > to integrate attributes.
> >
> > Moritz
> >

-- 
Dr. Peter Löwe
<peter.loewe at gmx.de>





Aufgepasst: Sind Ihre Daten beim Online-Banking auch optimal geschützt?
Jetzt absichern: https://homebanking.gmx.net/?mc=mail@footer.hb