[GRASS-user] extrude vector points

[Martin Landa]

Hi,

ok, now a little bit simplified (table parameter)...

# create table containing transformation parameters
echo "create table archsites_t (cat int, zs double)" | db.execute
# insert transformation parameters for category 1
echo "insert into archsites_t values (1, 1000)" | db.execute
# insert transformation parameters for category 2
echo "insert into archsites_t values (2, 2000)" | db.execute

# perform transformation
v.transform -t input=archsites output=archsites1 column="zshift:zs"
table="archsites_t"

# drop table contaning transformation parameters
echo "drop table archsites_t" | db.execute

Martin


2007/9/7, Martin Landa <landa.martin at gmail.com>:
> Hi,
>
> now in CVS possible also using v.transform.
>
> Martin
>
> E.g.
>
> # create table containing transformation parameters
> echo "create table archsites_trans (cat int, zs double)" | db.execute
> # insert transformation parameters for category 1
> echo "insert into archsites_trans values (1, 1000)" | db.execute
> # insert transformation parameters for category 2
> echo "insert into archsites_trans values (2, 2000)" | db.execute
> # connect table contaning transformation parameters
> v.db.connect archsites layer=1 table=archsites_trans -o
> # perform transformation
> v.transform in=archsites out=archsites_t col="zshift:zs"
> # reconnect original table
> v.db.connect archsites layer=1 table=archsites -o
> # drop table contaning transformation parameters
> echo "drop table archsites_trans" | db.execute
>
> 2007/8/23, Luigi Ponti <lponti at infinito.it>:
> > Dear list,
> >
> > Is there a way to "extrude" 2D vector points to 3D points based on
> > attribute column values, similar to what I have read v.extrude can do
> > with lines? I have tried to use v.extrude with points but an empty 3D
> > vector was created.
> >
> > Thanks and regards,
> >
> > Luigi
> >
> > _______________________________________________
> > grassuser mailing list
> > grassuser at grass.itc.it
> > http://grass.itc.it/mailman/listinfo/grassuser
> >
>
>
> --
> Martin Landa <landa.martin at gmail.com> * http://gama.fsv.cvut.cz/~landa *
>


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