Tomas Lanczos wrote:
Hello,

thank You Boris, it is something new for me, how can I integrate octave to grass? is there a tutorial for that?

No, I think you have to export your map with r.out.mat and then use the result in matlab.

However, maybe r3.cross.rast can do the trick for you directly in GRASS ?

Moritz


thank You

Tomas


Boris Avdeev wrote:
Using Matlab (or octave):

n=1;index=zeros(prod(dim(rast2d)),3)
for [i j]=1:dim(rast2d,[1 2])
  k=round(rast2d(i,j))
  index(n,:)=[i j k]
end
answer=rast3d(index)

Boris

On Nov 17, 2007 6:14 PM, Tomas Lanczos <[EMAIL PROTECTED]> wrote:
Hello everybody,

I have a 3D raster and several 2D elevation rasters. Is it possible to
perform somehow (within GRASS, or outside) intersection betwwen the 2D
and 3D rasters and get 2D raster with values of the 3D rasters where
they are intersected?

Tomas
GRASS 6.3 CVS, 2.2, Ubuntu 7.10 Gutsy


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