<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif">What version of ParaView? Mine works just fine..... 5.5.0-323-g37ce137a21 64-bit</div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif"><img src="cid:ii_jhi31wdy0" alt="image.png" width="447" height="562"><img src="cid:ii_jhi33kb11" alt="image.png" width="520" height="562"><br><br><br></div></div><br><div class="gmail_quote"><div dir="ltr">On Tue, May 22, 2018 at 3:05 PM Weiguang Guan <<a href="mailto:guanw@rhpcs.mcmaster.ca">guanw@rhpcs.mcmaster.ca</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div class="m_-6136872159320263761moz-cite-prefix">Dear Paraview users,<br>
<br>
Based on the documentation, Delaunay3D will construct a <span style="color:rgb(64,64,64);font-family:Lato,proxima-nova,"Helvetica Neue",Arial,sans-serif;font-size:16px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(252,252,252);text-decoration-style:initial;text-decoration-color:initial;display:inline!important;float:none">3D Delaunay triangulation from a list
of input points if alpha=0. But I did an experiment that gave a
different result. Here are the steps:<br>
(1) Sources->Point source, and set Number of points to N (I
experiment with different N=5 and N=20)<br>
(2) Using sphere glyph to display these points<br>
(3) Apply filter "</span><span style="color:rgb(64,64,64);font-family:Lato,proxima-nova,"Helvetica Neue",Arial,sans-serif;font-size:16px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(252,252,252);text-decoration-style:initial;text-decoration-color:initial;display:inline!important;float:none">Delaunay 3D"
to the points with alpha=0 and display the resultant
unstructured grid as wireframe.<br>
<br>
When N=20, I can see some of the points are ignored in the
process of Delauney triangulation. <br>
When N=5, The resultant unstructured grid has 3 cells while I
think it should have only 2 tetrahedra.<br>
<br>
Can someone explain it? Thanks a lot.<br>
<br>
Weiguang<br>
<br>
</span><span style="color:rgb(64,64,64);font-family:Lato,proxima-nova,"Helvetica Neue",Arial,sans-serif;font-size:16px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(252,252,252);text-decoration-style:initial;text-decoration-color:initial;display:inline!important;float:none"><span> </span></span>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>William J. Schroeder, PhD<br>Kitware, Inc. - Building the World's Technical Computing Software<br>28 Corporate Drive<br>Clifton Park, NY 12065<br><a href="mailto:will.schroeder@kitware.com" target="_blank">will.schroeder@kitware.com</a><br><a href="http://www.kitware.com" target="_blank">http://www.kitware.com</a><br>(518) 881-4902</div></div></div>