[Paraview] Delaunay3D

[Will Schroeder]

What version of ParaView? Mine works just fine..... 5.5.0-323-g37ce137a21
64-bit

[image: image.png][image: image.png]



On Tue, May 22, 2018 at 3:05 PM Weiguang Guan <guanw at rhpcs.mcmaster.ca>
wrote:

> Dear Paraview users,
>
> Based on the documentation, Delaunay3D will construct a 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:
> (1) Sources->Point source, and set Number of points to N (I experiment
> with different N=5 and N=20)
> (2) Using sphere glyph to display these points
> (3) Apply filter "Delaunay 3D" to the points with alpha=0 and display the
> resultant unstructured grid as wireframe.
>
> When N=20, I can see some of the points are ignored in the process of
> Delauney triangulation.
> When N=5, The resultant unstructured grid has 3 cells while I think it
> should have only 2 tetrahedra.
>
> Can someone explain it? Thanks a lot.
>
> Weiguang
>
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-- 
William J. Schroeder, PhD
Kitware, Inc. - Building the World's Technical Computing Software
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