[GRASS-user] Trento3D screenshots redone

[Dylan Beaudette]

On Friday 19 May 2006 11:38, Jachym Cepicky wrote:
> I would suggets to use both - vvar and pvar options of v.trees3d ;-)
>
> jachym
>

Right... Should had read the man pages before doing that.

fun and exciting output with vvar and hvar options set:

 v.trees3d in=trees_pts out=t3d elevation=elev_4m oak=50 pine=50 spruce=0 
vvar=75 hvar=40

http://169.237.35.250/~dylan/temp/pinn_trees_rnd.jpg

Thanks for the pointers.

Dylan

> 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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> > grassuser at grass.itc.it
> > http://grass.itc.it/mailman/listinfo/grassuser

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