<html><head></head><body><div style="font-family:times new roman, new york, times, serif;font-size:16px;"><div>Hi Riccardo<span>I have communicate with alexander muriy and he works for a portability v.triangle on windows. Currently this scipt work only on unix.<br>https://github.com/amuriy/GRASS-scripts<br>The answer of Alexander Muriy :<br>"Hello! <v.triangle> is a shell script and uses some Unix utilities (sed, awk), so you should use Unix-like environment in Windows (like MSYS or Cygwin). So you can't simply run this script."<br>Maybe could you insist to advance his script?<br><br>For OPenJump what is the problem with polygon 2.5D?<br><br>Best regards<br><br>Ted</span></div><div><br></div>
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Le lundi 2 avril 2018 à 22:21:30 UTC+2, Casoli-Risorsaterra <casoli@risorsaterra.it> a écrit :
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<p>Thak you Teddy <br>
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<p>I tried installing Openjump and Interpolate Points with
breaklines using the proper Sextante tool but even, if the
triangulation was right (respect to the breaklines), the quotes
of the 2,5D polygons generated by the tool were not right! Maybe
I missed something?<br>
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<p>Looking around for some tools useful for my purpuse, I found
the v.Triangle (1) Grass module that is no more contained in the
Grass Processing Tool in Qgis (or at least I couldn't find it!)</p>
<p>It's simply a "front-end" to the famous utility <a class="ydp4ca42e35yiv8027093574external ydp4ca42e35yiv8027093574text" href="http://www.cs.cmu.edu/%7Equake/triangle.html" rel="nofollow" target="_blank">Triangle</a>
(2) of J.R. Shewchuk ...and It should be exactly what I need in
Qgis.</p>
<p>Could I do something to support the (re)developping or new
adding of this processsing module?</p>
<p>Thanks in advance.</p>
<p>Riccardo</p>
<p style="margin-bottom:0cm;" align="LEFT"><i><u><b>Riccardo
Casoli</b></u>, Geologo<font size="2"> (email:<a href="mailto:casoli@risorsaterra.it" rel="nofollow" target="_blank">casoli@risorsaterra.it</a>;
cell:3289026131)</font></i></p>
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<p align="CENTER">Studio Associato Risorsaterra<br>
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<p align="CENTER"><i>di Massimo Barbonaglia, Riccardo
Casoli, <br>
Michele Colombo, Federico Cravello</i></p>
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<p align="CENTER"><font size="4">via Coda, 22/E - 13900
Biella Chiavazza</font><br>
Tel e fax: 01523346<br>
e-mail: <a href="mailto:info@risorsaterra.it" rel="nofollow" target="_blank">info@risorsaterra.it</a><br>
PEC: <a href="mailto:risorsaterra@professionistipec.it" rel="nofollow" target="_blank">risorsaterra@professionistipec.it</a></p>
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<p align="CENTER">C.F. e P.Iva: IT02413380029</p>
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(1) <a class="ydp4ca42e35yiv8027093574moz-txt-link-freetext" href="https://grasswiki.osgeo.org/wiki/TIN_with_breaklines" rel="nofollow" target="_blank">https://grasswiki.osgeo.org/wiki/TIN_with_breaklines</a><br>
(2) <a class="ydp4ca42e35yiv8027093574moz-txt-link-freetext" href="http://www.cs.cmu.edu/%7Equake/triangle.html" rel="nofollow" target="_blank">http://www.cs.cmu.edu/~quake/triangle.html</a><br>
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<b>Data:</b> Venerdì, 30.03.2018 11:01 +0200<br>
<b>A:</b> <a href="mailto:qgis-user@lists.osgeo.org" rel="nofollow" target="_blank">qgis-user@lists.osgeo.org</a><br>
<b>Oggetto:</b> Qgis-user Digest, Vol 145, Issue 62 <br>
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<pre>Message: 1
Date: Wed, 28 Mar 2018 20:10:21 +0200
From: teddy guerin <a class="ydp4ca42e35yiv8027093574moz-txt-link-rfc2396E" href="mailto:teddyguerin@yahoo.fr" rel="nofollow" target="_blank"><teddyguerin@yahoo.fr></a>
To: <a class="ydp4ca42e35yiv8027093574moz-txt-link-rfc2396E" href="mailto:casoli@risorsaterra.it" rel="nofollow" target="_blank">"casoli@risorsaterra.it"</a> <a class="ydp4ca42e35yiv8027093574moz-txt-link-rfc2396E" href="mailto:casoli@risorsaterra.it" rel="nofollow" target="_blank"><casoli@risorsaterra.it></a>
Cc: <a class="ydp4ca42e35yiv8027093574moz-txt-link-abbreviated" href="mailto:qgis-user@lists.osgeo.org" rel="nofollow" target="_blank">qgis-user@lists.osgeo.org</a>
Subject: Re: [Qgis-user] TIN Interpolation from points (survey) with
break (interrupt or constraint) lines
Message-ID: <a class="ydp4ca42e35yiv8027093574moz-txt-link-rfc2396E" href="mailto:21A57A6C-C608-4C42-8E50-BDDB4B0FF75F@yahoo.fr" rel="nofollow" target="_blank"><21A57A6C-C608-4C42-8E50-BDDB4B0FF75F@yahoo.fr></a>
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Hi,
I seem that you use grass (module of qgis) for this action or openjump 😉.
Regards
Ted
Envoyé de mon iPad
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<pre>Le 28 mars 2018 à 19:23, <a class="ydp4ca42e35yiv8027093574moz-txt-link-rfc2396E" href="mailto:casoli@risorsaterra.it" rel="nofollow" target="_blank">"casoli@risorsaterra.it"</a> <a class="ydp4ca42e35yiv8027093574moz-txt-link-rfc2396E" href="mailto:casoli@risorsaterra.it" rel="nofollow" target="_blank"><casoli@risorsaterra.it></a> a écrit :
Hi everybody
I have a PointSHP with Z field value that represents the survey on a step vineyard: points have been token along base and edge of steps to represent slope breaks.
In order to build a TIN (DEM) I created a line SHP and drew a series of lines linking related points (respecting morphological alignements).
Then I tried to build a triangulagion TIN (DEM) by "Interpolation TIN" tool using my points with their Z elevation field and my breaklinesline SHP to constrain triangulation inside each slope or step.
But the TIN obtained is a regular inclined surface that follows the general slope of the whole survey given by mean of z value of points: no steps no slopes.
Where I miss? What is the way to build a TIN from points with constrain lines?
I send an image that represents the points and breaklines on a orthophoto foreground and beside the same vector elements on the resulting TIN by interpolation.
Thanks in advance.
--
Riccardo Casoli, Geologo (<a class="ydp4ca42e35yiv8027093574moz-txt-link-abbreviated" href="mailto:email:casoli@risorsaterra.it" rel="nofollow" target="_blank">email:casoli@risorsaterra.it</a>; cell:3289026131)
Studio Associato Risorsaterra
di Barbonaglia, Casoli, Colombo, Cravello
Agricoltura, geologia, foreste
via Coda, 22/e
13900 Biella Chiavazza
Tel e fax: 01523346
e-mail: <a class="ydp4ca42e35yiv8027093574moz-txt-link-abbreviated" href="mailto:info@risorsaterra.it" rel="nofollow" target="_blank">info@risorsaterra.it</a>
C.F. e P.Iva: IT02413380029
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