As far as I can see GRASS doesn't provide any ready-to-go tool to generate
TINs from grid digital elevation models. I know I can transform a grid to a
regular mesh somehow (probably using the Triangle lib for the last step)
but I can't find tools to generate TINs, given a certain amount of
From what I can see of GRASS-user postings, most of the discussion is about
quite technical aspects of GRASS.
Please can someone address my very basic problems?
1 - after running GRASS for about half an hour, the layer selection becomes
unresponsive.
2 - I get wired interaction
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?
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
On Fri, Dec 5, 2014 at 7:14 AM, Neil Wyatt stub.mand...@gmail.com wrote:
From what I can see of GRASS-user postings, most of the discussion is
about quite technical aspects of GRASS.
Please can someone address my very basic problems?
1 – after running GRASS for about half an hour, the
Thanks for the suggestions. I already had a look at that page, but nothing
seems to fulfill my requirements.
Using v.random is not a solution. I should select significative points, and
significative lines, to feed Triangle. Random selection will probably miss
important locations (e.g. peaks,
I've just discoevered r.refine, which seems to do exactly what I need ;)
https://github.com/jontodd/r.refine
giovanni
2014-12-05 16:21 GMT+01:00 G. Allegri gioha...@gmail.com:
Thanks for the suggestions. I already had a look at that page, but nothing
seems to fulfill my requirements.
Using
On 05/12/14 16:24, G. Allegri wrote:
I've just discoevered r.refine, which seems to do exactly what I need ;)
https://github.com/jontodd/r.refine
Looks great. Maybe you can convince the author to put the code into the
GRASS addons SVN ?
Moritz
2014-12-05 17:37 GMT+01:00 Moritz Lennert mlenn...@club.worldonline.be:
On 05/12/14 16:24, G. Allegri wrote:
I've just discoevered r.refine, which seems to do exactly what I need ;)
https://github.com/jontodd/r.refine
Looks great. Maybe you can convince the author to put the code into the
Hi Giovanni,
A module for this would be really neat! I am not sure if this will be helpful,
but here is what I have done in the past.
Set your region of interest of course. My notes indicate that I had to add an
extra unit to the north and west region (not sure why).
r.out.vtk -v
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