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<p class="MsoNormal"><span style="color:#1F497D">Kyle,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I am cleaning up old e-mails, and found this one.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">My best (and only) guess is that you have a bad graphics driver on your remote computer. I suspect ParaView uses OpenGL PolyOffset for surface with edges, and the driver could be giving you issues. Update it?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Alan<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> paraview-bounces@paraview.org [mailto:paraview-bounces@paraview.org]
<b>On Behalf Of </b>Gamble, Kyle<br>
<b>Sent:</b> Friday, May 31, 2013 6:59 AM<br>
<b>To:</b> paraview@paraview.org<br>
<b>Subject:</b> [EXTERNAL] [Paraview] Triangulation of Mesh<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:.5in"><b><span lang="EN-CA" style="color:#1F497D">UNRESTRICTED | ILLIMITÉ</span></b><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA">Hello All,<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA">I am trying to understand why when I use show with surface with edges I am getting bizarre results. I have used a program called cubit to create an exodus file of my mesh on my local machine
with quad8 (quadratic) elements. To explain the behaviour, I have created a simple case called junk. When I open this exodus file (without results) into Paraview on my local machine I obtain the mesh shown in the attached image JunkParaviewLocal.jpg.
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA">Now, I run my simulations remotely to another computer used by someone else because it is faster than the computer I currently use locally. This is done through linux and ssh. If I secure copy
the same exodus file to the remote machine and open it in Paraview on the remote machine I obtain the mesh shown in ParaviewJunkRemote.jpg, which is obviously the incorrect representation of the mesh. I’ve run the simulation assuming the triangulation was
just a graphics issue but the results were based upon the triangular mesh which is incorrect.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA">Why does paraview triangulize the mesh when running remotely? I ask this because if I run the simulation using the mesh from this exodus file, I obtain results based on the triangular mesh rather
than the quadrilateral mesh I designed, and this leads to incorrect results.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA">I thought it may be an issue with the copying of the file so I went to the remote machine with the exodus file on a usb key and copied the file to the hard drive. I tried opening the file locally
on the remote machine and when I click surface with edges, Paraview immediately exits with a seg fault.
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA">Why would paraview exit with a seg fault when clicking surface with edges, when the exodus file opens fine on my local machine? In addition other exodus files open perfectly fine in Paraview
on the remote machine indicating to me there is nothing wrong with the installation of Paraview either.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA">Again this seems like unusual behaviour and I need to be able to run my simulations on the remote computer on the correct mesh. I do not experience this behaviour using first order quad4 elements.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA">If anyone has any ideas on why this behaviour is observed and how to correct it would be greatly appreciated.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA">Thank you,<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA">Kyle Gamble<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-CA"><o:p> </o:p></span></p>
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