[GRASSLIST:159] 3d vector files in nviz

GRASS GRASS user
1

Hi guys!
I just created a new line vector file with a column in the tab called
ELEVATION. I wanna display it in nviz over my them; i do this:
1) Convert to rast using elevation as value
2) Re-convert to vect, enabling the creation of z values (only points)
Are there some easy way?
Thx
Luca
--
"E' molto più bello sapere qualcosa di tutto, che tutto di una cosa (Blaise
Pascal)."

GENTOO-GIS Development Team
jabber: casagrande@jabber.linux.it

2

Il giorno gio, 16/03/2006 alle 11.03 +0000, Luca Casagrande ha scritto:

Hi guys!
I just created a new line vector file with a column in the tab called
ELEVATION. I wanna display it in nviz over my them; i do this:
1) Convert to rast using elevation as value
2) Re-convert to vect, enabling the creation of z values (only points)
Are there some easy way?

Luca,
not sure about what you need, but you should give a look to v.drape in
6.1

Regards,
Stefano

--
Stefano Costa
http://www.iosa.it Software Open Source per l'Archeologia
Jabber: steko@jabber.linux.it
GnuPG Key ID 1024D/0xD0D30245
Linux Registered User #385969 counter.li.org

3

Hi Stefano and thx for your answer...
I Just wanna see a 2d line vector in 3d space, using for z value, a coloumn
called elevation.
Thx
Luca
Alle 13:44, giovedì 16 marzo 2006, Stefano Costa ha scritto:

Il giorno gio, 16/03/2006 alle 11.03 +0000, Luca Casagrande ha scritto:
> Hi guys!
> I just created a new line vector file with a column in the tab called
> ELEVATION. I wanna display it in nviz over my them; i do this:
> 1) Convert to rast using elevation as value
> 2) Re-convert to vect, enabling the creation of z values (only points)
> Are there some easy way?

Luca,
not sure about what you need, but you should give a look to v.drape in
6.1

Regards,
Stefano

--
"E' molto più bello sapere qualcosa di tutto, che tutto di una cosa (Blaise
Pascal)."

GENTOO-GIS Development Team
jabber: casagrande@jabber.linux.it

4

On Thursday 16 March 2006 06:49 am, Luca Casagrande wrote:

Hi Stefano and thx for your answer...
I Just wanna see a 2d line vector in 3d space, using for z value, a coloumn
called elevation.
Thx
Luca

Luca,

You will need to somehow assign that elevation value to the "z-coordinate" of
each vertex in that line. Two ways of doing this come to mind:

3 column ascii file:
1. v.in.ascii -z x=1 y=2 z=3

2. use a DEM and v.drape in 6.1-CVS

Cheers,

--
Dylan Beaudette
Soils and Biogeochemistry Graduate Group
University of California at Davis
530.754.7341