<html>
<head>
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<div class="moz-cite-prefix">Hi Will,<br>
<br>
Thank you very much for your time. I've tried v5.5 and v5.2. This
"issue" doesn't seem to have anything to do with the versions.<br>
<br>
First of all, I would like to change my words for the N=5 case,
where there might be 2, 3, or even 4 terahedra depending on the
relative locations of the 5 points. <br>
<br>
However, the question for the N=20 case is still pending one. You
can see the dangling points if you change the representation from
"surface" to "wireframe". I basically have similar result as
yours. Because the point source generates point cloud with random
positions of points, you will see different results each time you
change the parameters of Point Source (either number of point or
the radius).<br>
<br>
Another question: is there another filter that constructs a grid
from a set of points?<br>
<br>
Weiguang<br>
<br>
<br>
On 5/22/2018 3:42 PM, Will Schroeder wrote:<br>
</div>
<blockquote
cite="mid:CAEiDrtV5T+0YN+fYwgY5KG7i-VJWex4m2ff1p3WxkRB1wrE31Q@mail.gmail.com"
type="cite">
<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:part1.00050101.08000605@rhpcs.mcmaster.ca"
alt="image.png" height="562" width="447"><img
src="cid:part2.05080909.09000005@rhpcs.mcmaster.ca"
alt="image.png" height="562" width="520"><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 moz-do-not-send="true"
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">
<div text="#000000" bgcolor="#FFFFFF">
<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> </div>
</div>
_______________________________________________<br>
Powered by <a moz-do-not-send="true"
href="http://www.kitware.com" rel="noreferrer"
target="_blank">www.kitware.com</a><br>
<br>
Visit other Kitware open-source projects at <a
moz-do-not-send="true"
href="http://www.kitware.com/opensource/opensource.html"
rel="noreferrer" target="_blank">http://www.kitware.com/opensource/opensource.html</a><br>
<br>
Please keep messages on-topic and check the ParaView Wiki at:
<a moz-do-not-send="true"
href="http://paraview.org/Wiki/ParaView" rel="noreferrer"
target="_blank">http://paraview.org/Wiki/ParaView</a><br>
<br>
Search the list archives at: <a moz-do-not-send="true"
href="http://markmail.org/search/?q=ParaView"
rel="noreferrer" target="_blank">http://markmail.org/search/?q=ParaView</a><br>
<br>
Follow this link to subscribe/unsubscribe:<br>
<a moz-do-not-send="true"
href="https://public.kitware.com/mailman/listinfo/paraview"
rel="noreferrer" target="_blank">https://public.kitware.com/mailman/listinfo/paraview</a><br>
</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 moz-do-not-send="true"
href="mailto:will.schroeder@kitware.com" target="_blank">will.schroeder@kitware.com</a><br>
<a moz-do-not-send="true" href="http://www.kitware.com"
target="_blank">http://www.kitware.com</a><br>
(518) 881-4902</div>
</div>
</div>
</blockquote>
<br>
<br>
<pre class="moz-signature" cols="72">--
--
Weiguang Guan
Research Scientist
RHPCS, McMaster University
Phone: 905-525-9140 x22540
</pre>
</body>
</html>