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<p>Hi again,<br>
</p>
<div class="moz-cite-prefix">Le 20/11/2020 à 11:30, P M a écrit :<br>
</div>
<blockquote type="cite"
cite="mid:CACf7ODsD09wdR1d-VKkrs5aCfd8VuYJBTwsK6wCbKhOWP5gnfg@mail.gmail.com">
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<div>OK,</div>
<div>some more background:</div>
<div><br>
</div>
<div>I actually want to perform a delaunay triangulation on a
set of X-Y-Z-coordinates.</div>
</div>
</blockquote>
I suppose you mean a triangulation of scattered X-Y-Z but you call
mesh2d with X-Y only ?<br>
<blockquote type="cite"
cite="mid:CACf7ODsD09wdR1d-VKkrs5aCfd8VuYJBTwsK6wCbKhOWP5gnfg@mail.gmail.com">
<div dir="ltr">
<div><br>
</div>
<div>I know of CGLAB, but it seems only available to Scilab
6.0.x, while I am on Scilab 6.1.0</div>
</div>
</blockquote>
CGLAB is based on a very old version of CGAL and thus is very hard
to maintain as is. There is a lot of work...<br>
<blockquote type="cite"
cite="mid:CACf7ODsD09wdR1d-VKkrs5aCfd8VuYJBTwsK6wCbKhOWP5gnfg@mail.gmail.com">
<div dir="ltr">
<div><br>
</div>
<div>So the nearest thing to a delaunay triangulation I found is
mesh2d...</div>
</div>
</blockquote>
Yeah. Suboptimal choice indeed...<br>
<blockquote type="cite"
cite="mid:CACf7ODsD09wdR1d-VKkrs5aCfd8VuYJBTwsK6wCbKhOWP5gnfg@mail.gmail.com">
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<div>Because of the delaunay triangulation, I am not sure if the
order of points may change.<br>
</div>
</div>
</blockquote>
What do you mean ?<br>
<blockquote type="cite"
cite="mid:CACf7ODsD09wdR1d-VKkrs5aCfd8VuYJBTwsK6wCbKhOWP5gnfg@mail.gmail.com">
<div dir="ltr">
<div><br>
</div>
<div>About unique:</div>
<div><br>
</div>
<div>The result I get is actual of same size as the input
matrix...I therefore do assume that each point is unique in
the first place (which they actually should).</div>
<div><br>
</div>
<div>What does repeat are individual x, y, z coordinates, but in
different combinations.</div>
<div>So the actual point is different.</div>
<div><br>
</div>
<div><br>
</div>
<div>e.g.: x may repeat, but than the y-z-coordinates are
different from point to point</div>
</div>
</blockquote>
<p>Could you share the data (you can send me a private message) ?<br>
</p>
<p>S.<br>
</p>
<blockquote type="cite"
cite="mid:CACf7ODsD09wdR1d-VKkrs5aCfd8VuYJBTwsK6wCbKhOWP5gnfg@mail.gmail.com">
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<div> <br>
</div>
<div>Thanks,</div>
<div>Philipp<br>
</div>
<div>
<div><br>
</div>
<div><br>
</div>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">Am Fr., 20. Nov. 2020 um
10:57 Uhr schrieb Stéphane Mottelet <<a
href="mailto:stephane.mottelet@utc.fr"
moz-do-not-send="true">stephane.mottelet@utc.fr</a>>:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>Hi Philipp,</p>
<p>Glad to hear that some people use mesh2d. I know we have
to improve the error message by getting the numbers at the
Fortran level... There is also other errors which are not
easy to fix without knowing the number of the problematic
point (point too close to the boundary, for example). Can
you file a bug on BZ ?</p>
<p>S.<br>
</p>
<div>Le 20/11/2020 à 10:03, P M a écrit :<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>Dear all,</div>
<div><br>
</div>
<div>using the mesh2d - function I get an error:
mesh2di: some points are identical.</div>
<div><br>
</div>
<div><br>
</div>
<div>How to identify these points and remove the
duplicates?</div>
<div><br>
</div>
<div>There are roughly 500'000 coordinates....</div>
<div><br>
</div>
<div>Thank you,</div>
<div>Philipp<br>
</div>
</div>
<br>
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<pre cols="72">--
Stéphane Mottelet
Ingénieur de recherche
EA 4297 Transformations Intégrées de la Matière Renouvelable
Département Génie des Procédés Industriels
Sorbonne Universités - Université de Technologie de Compiègne
CS 60319, 60203 Compiègne cedex
Tel : +33(0)344234688
<a href="https://antispam.utc.fr/proxy/1/c3RlcGhhbmUubW90dGVsZXRAdXRjLmZy/www.utc.fr/~mottelet" target="_blank" moz-do-not-send="true">http://www.utc.fr/~mottelet</a>
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<pre class="moz-signature" cols="72">--
Stéphane Mottelet
Ingénieur de recherche
EA 4297 Transformations Intégrées de la Matière Renouvelable
Département Génie des Procédés Industriels
Sorbonne Universités - Université de Technologie de Compiègne
CS 60319, 60203 Compiègne cedex
Tel : +33(0)344234688
<a class="moz-txt-link-freetext" href="http://www.utc.fr/~mottelet">http://www.utc.fr/~mottelet</a>
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