[GRASSLIST:71] Re: v.in.dxf

Hamish hamish_nospam at yahoo.com
Tue Mar 14 01:04:38 EST 2006


> Sorry for the cross-post, but I'm trying to do almost exactly the 
> opposite. That is, export a (raster) DEM to dxf. I was browsing the 
> diverse grass modules, and the problem is I couldn't find a way to 
> convert a raster DEM to a vector "surface" or "3d" file. So I can
> later export it using v.out.dxf. I tried r.to.vect with horrible(and
> maybe simply "not applicable") results.
> I found some (non- free) programs that seem to do this (r2v, from 
> ablesoft, by example) but it intrigues me if it can actually be done 
> with grass(or with free software).

Sounds like you want a TIN. see:

http://baron.flightgear.org/pipermail/terragear-devel/2004-November/001087.html

or v.3Dtin
http://www.fle.czu.cz/~jachym/programs/grass.html
http://grass.gdf-hannover.de/twiki/bin/view/GRASS/GrassAddOns



Hamish




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