[GRASS-user] cutting a 3d volume with a 2d surface

[Carlos Grohmann]

Hello Markus, thanks for your reply.

Actually is something more like the png attached. The result is not a
2.5D surface, but a 3D solid.
Maybe Paraview can do it?

best

Carlos


On Wed, May 26, 2010 at 18:52, Markus Neteler <neteler at osgeo.org> wrote:
> On Wed, May 26, 2010 at 7:50 PM, Carlos Grohmann
> <carlos.grohmann at gmail.com> wrote:
>> Dears, can I "cut" a 3d volume using a 2d (ok, 2.5d) surface?
>
> Do you mean this?
> http://grass.osgeo.org/grass64/manuals/html64_user/r3.cross.rast.html
>
>> interpolating wir r3.* gives me the results inside a rectangular
>> prism. can I use a surface (like topography) to remove the upper part
>> of the volume?
>
> .. sounds more like a job for r3.mapcalc...
>
> Markus
>



-- 
Prof. Carlos Henrique Grohmann - Geologist D.Sc.
Institute of Geosciences - Univ. of São Paulo, Brazil
http://www.igc.usp.br/pessoais/guano
http://lattes.cnpq.br/5846052449613692
Linux User #89721
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