[GRASS-user] How update vector layers?

Vincent Bain bain at toraval.fr
Sat Mar 7 15:21:33 EST 2009

Having a look at the man page of the v.patch command, I was surprised by
a semantic ambiguity : saying v.patch "Create[s] a new vector map layer
by combining other vector map layers" sounds quite odd, shouldn't we
say :"Create a new vector map by combining other vector maps", given
that only layer 1 is supported ? well, maybe there is no confusion and
I misunderstand something ?

In the current french translation of wxpython GUI, there are several
confusions between these notions of maps and layers*, which IMHO should
be clearly distinguished if we want to show a coherent vector data


* I know I should keep working on translation files, but for the moment
I'm really over-loaded.

Le samedi 07 mars 2009 à 21:02 +0100, Markus Neteler a écrit :
> On Sat, Mar 7, 2009 at 8:03 PM, Thybério Luna Freire <thyberio at gmail.com> wrote:
> > Hi Vincent,
> > I've tried the following command:
> >
> > v.patch -ae input=sugarcane,sugarcane_update output=sugarcane --o
> >
> > it returns:
> > ERROR: Output vector map <sugarcane> is used as input
> You have to write the output to a new map name.
> Markus
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