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<div class="moz-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; orphans: 2; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: 2;
word-spacing: 0px; -webkit-text-stroke-width: 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; orphans: 2;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 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; orphans: 2; text-align: start;
text-indent: 0px; text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 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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