[GRASS-user] DTM/DEM to TIN

[Helmut Kudrnovsky]

giohappy wrote
> Hi Mark,
> thanks for the reply but it's not what I'm looking for. v.triangle is a
> front-end to Triangle, to generate a Delaunay triangulation on points and,
> eventually, breaklines.
> I'm lookink for something that generates a TIN from an elevation grid
> (raster).
> 
> giovanni
> Il 05/dic/2014 14:14 "Mark Seibel" <

> mseibel@

> > ha scritto:
> 
>> Hi.
>>
>>
>>>  I can't find tools to generate TINs, given a certain amount of
>>> tolerance, which preserve significative locations (like those obtained
>>> by
>>> TPI for example) and shapes (in a morphonetric sense)
>>>
>>
>> Does the v.triangle add-on accomplish the goal?
>>
>>
>> https://raw.githubusercontent.com/amuriy/GRASS-scripts/a7df12d996abfe6461f509fce6feb6c869af2d5e/v.triangle
>>
>>
>> Mark
>>
> 
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maybe some ideas there:

http://grasswiki.osgeo.org/wiki/Triangle_Mesh



-----
best regards
Helmut
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