[GRASS-user] [GRASSLIST:1105] tin to raster dem

[Maciek Sieczka]

On Fri, 16 Jun 2006 10:50:23 +0200
ivan marchesini <marchesini at unipg.it> wrote:

> Dear all...
> I have been able to create a tin starting from the v.delaunay module
> and then manual editing the v.delaunay output exported with v.in.ascii
> (format=standard) 
> now I can see, using nviz, the some filled triangles in the 3d
> space...!!!!
> now the problem:
> I would like to transfrom the tin surface in a raster surface...
> is it possible in some way!!!!
> any idea????


This *might* work:

Get the apices of your triangles into points vector, rasterize it
(v.to.rast) and feed to my r.surf.nnbathy
(http://grass.gdf-hannover.de/wiki/GRASS_AddOns).

You will only have to modify the script slightly. In line 138 put "-P
alg=l" instead of "-P alg=nn". This will make nnbathy triangulate
only, without any smoothing.

Let me know if it worked.

Maciek

P.S.

Please don't post to grasslist at baylor.edu. Post to 
grassuser at grass.itc.it.

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