[GRASS-user] Trento3D screenshots redone

[Jachym Cepicky]

I would suggets to use both - vvar and pvar options of v.trees3d ;-)

jachym


On Fri, May 19, 2006 at 01:04:03PM +1200, Hamish wrote:
> > > > How would you go about adding 3D objects like trees?  Or are you
> > > > only dreaming?
> > >
> > > http://les-ejk.cz/?cat=grass
> > >
> > > Not dreaming... :D
> > 
> > Neat module Jachym !
> > 
> > g.region res=4
> > r.mapcalc "trees= if(ndvi >= 0.5, 1, null())"
> > g.region res=8
> > r.to.vect in=trees out=trees_pts feature=point
> > g.region res=4
> > v.trees3d in=trees_pts out=t3d elevation=elev_4m oak=50 pine=50 \
> > spruce=0  nviz elev=elev_4m color=ikonos.rgb vect=t3d
> > 
> > output:
> > http://169.237.35.250/~dylan/temp/pinn_trees.jpg
> 
> I see your trees are in geometric lines. For a more natural looking
> picture I would suggest perturbing your vector points (v.perturb) by 
> a random amount up to about 1/2 of the initial raster resolution.
> 
> 
> Hamish
> 
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-- 
Jachym Cepicky
e-mail: jachym.cepicky at centrum.cz
URL: http://les-ejk.cz
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