Hi,<br><br>I'm not sure to understand the difference between your v.triangle and the v.delaunay (<a href="http://grass.osgeo.org/grass64/manuals/html64_user/v.delaunay.html">http://grass.osgeo.org/grass64/manuals/html64_user/v.delaunay.html</a>) already in grass core ... for what I see in your pdf exemple, it seems that your new module is giving almost the same result as v.delaunay would do ...<br>
<br>can you explain the differences ? I like to learn new things in grass ;)<br><br><br>cheers,<br>Sylvain<br><br><br><div class="gmail_quote">2012/4/20 Alexander Muriy <span dir="ltr"><<a href="mailto:amuriy@gmail.com">amuriy@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi all. <br><div class="gmail_quote"><br>I wrote a shell-script module <v.triangle> that is "front-end" for the famous <Triangle> utility (<a href="http://www.cs.cmu.edu/%7Equake/triangle.html" target="_blank">http://www.cs.cmu.edu/~quake/triangle.html</a>) of J.R. Shewchuk. I'm planning to add it to GRASS-Addons wiki page :)<br>
<br><Triangle> makes exact Delaunay triangulations, constrained Delaunay triangulations, conforming Delaunay triangulations and high-quality triangular meshes. On GIS terminology, it produces 2D TIN, optionally with "breaklines".<br>
<br>Link: <a href="https://raw.github.com/amuriy/GRASS-scripts/master/v.triangle" target="_blank">https://raw.github.com/amuriy/GRASS-scripts/master/v.triangle</a><br><br><br>P.S. It generally works but centroids in final TIN have "0" heights. Now I think about some hack to make the right centroids in all areas of TIN.<br>
<br>-----------------------------------------------------------------<br>Comparison of the one resulting TIN with the TIN produced in ArcView 3D Analyst see in linked PDF (<a href="http://dl.dropbox.com/u/42016908/ArcView_GRASS_TIN_breaklines.pdf" target="_blank">http://dl.dropbox.com/u/42016908/ArcView_GRASS_TIN_breaklines.pdf</a>) <br>
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