[GRASS-user] Re: tin to raster dem: SOLVED

[Thomas Adams]

Ivan,

Do you mind posting an example of your results? Also, out of curiosity, 
how do you plan on making use of this capability?

Regards,
Tom


ivan marchesini wrote:
> Dear all, dear Maciek,
> many thanks to all for the answers..
> the solution proposed by Maciek works really well...
> it seems that the module v.surf.nnbathy modified changing in line 138
> "-P alg=nn" with "-P alg=l" is able to create a plane passing for tree
> rasterized points!!!!
> many thanks!!!
> Ivan
>
>
>
> Il giorno sab, 17/06/2006 alle 13.00 +0200, Maciek Sieczka ha scritto:
>   
>> 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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>>
>> www.skarpatravel.pl
>>
>>
>>     


-- 
Thomas E Adams
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