[GRASS-user] NVIZ and rgb ortofotos

GRASS GRASS user
1

Hello all,
perhaps its a too simple question,
how can I drape a coloured ortofoto on an elevation model with NVIZ?

Thanks for any hints!
Manuel

--

_______________________________________________________________________
Dr. Manuel Seeger
Wiss. Assistent Scientific Assistant
Physische Geographie Dpt. of Physical Geography
FB VI - Geographie/Geowissenschaften Geography/Geosciences
Universität Trier University of Trier
D - 54286 Trier
Tel.: +49-651-201 4557
Fax: +49-651-201 3976
Web: http://www-neu.uni-trier.de/index.php?id=9607

2

Dr. Manuel Seeger wrote:

how can I drape a coloured ortofoto on an elevation model with NVIZ?

# to get best resolution. Consider resampling DEM to match.
g.region rast=ortofoto

# then just
nviz elevation=dem_map color=ortofoto

Hamish

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3

On Mon, Mar 03, 2008 at 01:51:57AM -0800, we recorded a bogon-computron collision of the <hamish_b@yahoo.com> flavor, containing:

Dr. Manuel Seeger wrote:
> how can I drape a coloured ortofoto on an elevation model with NVIZ?

# to get best resolution. Consider resampling DEM to match.
g.region rast=ortofoto

# then just
nviz elevation=dem_map color=ortofoto

I think the original poster meant that his orthophoto was in separate
r, g, and b bands, so the photo can't be draped as simply as that without
an r.composite step to combine the bands in a single raster.
--
Tom Russo KM5VY SAR502 DM64ux http://www.swcp.com/~russo/
Tijeras, NM QRPL#1592 K2#398 SOC#236 AHTB#1 http://kevan.org/brain.cgi?DDTNM
"And, isn't sanity really just a one-trick pony anyway? I mean all you get is
one trick, rational thinking, but when you're good and crazy, oooh, oooh,
oooh, the sky is the limit!" --- The Tick

4

Tom Russo schrieb:

On Mon, Mar 03, 2008 at 01:51:57AM -0800, we recorded a bogon-computron collision of the <hamish_b@yahoo.com> flavor, containing:
  

Dr. Manuel Seeger wrote:
    

how can I drape a coloured ortofoto on an elevation model with NVIZ?
      

# to get best resolution. Consider resampling DEM to match.
g.region rast=ortofoto

# then just
nviz elevation=dem_map color=ortofoto
    
I think the original poster meant that his orthophoto was in separate r, g, and b bands, so the photo can't be draped as simply as that without
an r.composite step to combine the bands in a single raster.
  

Hey Tom,

thanks!

That was what I was looking for!

Manuel

--

_______________________________________________________________________
Dr. Manuel Seeger
Wiss. Assistent Scientific Assistant
Physische Geographie Dpt. of Physical Geography
FB VI - Geographie/Geowissenschaften Geography/Geosciences
Universität Trier University of Trier
D - 54286 Trier
Tel.: +49-651-201 4557
Fax: +49-651-201 3976
Web: http://www-neu.uni-trier.de/index.php?id=9607