[GRASS-user] linking different tables to one vector file...

GRASS GRASS user
1

Hi,

I wanted to ask if its possible to link different tables to a vector map with points, lines and areas (i.e link nodes to node_table, lines to lines_table and areas to area_table).

Thanks,

Jaime

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2

Hi,

2008/1/15, Jaime Carrera <jaicarrerahdez@yahoo.com>:

I wanted to ask if its possible to link different tables to a vector map
with points, lines and areas (i.e link nodes to node_table, lines to
lines_table and areas to area_table).

yes, it is possible. Vector map can be multi-layered. In your case
first sub-layer can contain points, the second lines, etc. You can
link different tables to sub-layers using v.db.connect. In your case
you just need to separate vector types to the different sub-layers.

Martin

--
Martin Landa <landa.martin@gmail.com> * http://gama.fsv.cvut.cz/~landa *

3

Hi,
may be the attached scheme is of some help.
Greetings
A.Clerici

-----Messaggio originale-----
Da: grass-user-bounces@lists.osgeo.org
[mailto:grass-user-bounces@lists.osgeo.org] Per conto di Martin Landa
Inviato: martedì 15 gennaio 2008 9.03
A: Jaime Carrera
Cc: grass-user@lists.osgeo.org
Oggetto: Re: [GRASS-user] linking different tables to one vector file...

Hi,

2008/1/15, Jaime Carrera <jaicarrerahdez@yahoo.com>:

I wanted to ask if its possible to link different tables to a vector map
with points, lines and areas (i.e link nodes to node_table, lines to
lines_table and areas to area_table).

yes, it is possible. Vector map can be multi-layered. In your case
first sub-layer can contain points, the second lines, etc. You can
link different tables to sub-layers using v.db.connect. In your case
you just need to separate vector types to the different sub-layers.

Martin

--
Martin Landa <landa.martin@gmail.com> * http://gama.fsv.cvut.cz/~landa *
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(attachments)

Scheme.pdf (10.5 KB)