<div dir="ltr">Michael,<div><br></div><div>A change has just went into ParaView that should prevent this problem in the future.</div><div><br></div><div><a href="https://gitlab.kitware.com/paraview/paraview/commit/a57c26237a41955465326a0cde8b586aecada416">https://gitlab.kitware.com/paraview/paraview/commit/a57c26237a41955465326a0cde8b586aecada416</a><br></div><div><br></div><div>If one really wants integer precision in the contour coordinates, it is still possible with this change.<br></div><div><br></div><div>Thanks,</div><div>Cory</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Apr 16, 2015 at 9:05 AM, Greenwood, Michael <span dir="ltr"><<a href="mailto:Michael.Greenwood@nrcan-rncan.gc.ca" target="_blank">Michael.Greenwood@nrcan-rncan.gc.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Yup, that was the issue, it was a simple matter of changing the coordinates of my grid to floating point instead of integer.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Cory Quammen [mailto:<a href="mailto:cory.quammen@kitware.com" target="_blank">cory.quammen@kitware.com</a>]
<br>
<b>Sent:</b> April 15, 2015 21:30<br>
<b>To:</b> Greenwood, Michael<br>
<b>Cc:</b> Berk Geveci; <a href="mailto:paraview@paraview.org" target="_blank">paraview@paraview.org</a></span></p><div><div class="h5"><br>
<b>Subject:</b> Re: [Paraview] Contours of unstructured grid paraview 3 vs paraview 4<u></u><u></u></div></div><p></p><div><div class="h5">
<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">This email explains a bit more detail what I think the problem might be:<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal"><a href="http://www.paraview.org/pipermail/paraview/2014-October/032458.html" target="_blank">http://www.paraview.org/pipermail/paraview/2014-October/032458.html</a><u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">- Cory<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">On Wed, Apr 15, 2015 at 6:11 PM, Cory Quammen <<a href="mailto:cory.quammen@kitware.com" target="_blank">cory.quammen@kitware.com</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal">Michael,<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">I remember tracking down a similar bug like this. I recall it had to do with the type of the points being specified as an integral type. The change between 3 and 4 was that interpolation for the isocontours is now performed with the precision
available in the point type, so if your point type is an integral value, you'll get this chunky result.<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Try changing your point type in your data file to float or double.<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Hope that helps,<u></u><u></u></p>
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<p class="MsoNormal">Cory<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">On Wed, Apr 15, 2015 at 4:09 PM, Greenwood, Michael <<a href="mailto:Michael.Greenwood@nrcan-rncan.gc.ca" target="_blank">Michael.Greenwood@nrcan-rncan.gc.ca</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">The data file is being held in moderation since its larger size, let me see if I can find a place to
store it and send a link.</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span><u></u><u></u></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> ParaView
[mailto:<a href="mailto:paraview-bounces@paraview.org" target="_blank">paraview-bounces@paraview.org</a>]
<b>On Behalf Of </b>Greenwood, Michael<br>
<b>Sent:</b> April 15, 2015 16:08<br>
<b>To:</b> Berk Geveci<br>
<b>Cc:</b> <a href="mailto:paraview@paraview.org" target="_blank">paraview@paraview.org</a><br>
<b>Subject:</b> Re: [Paraview] Contours of unstructured grid paraview 3 vs paraview 4</span><u></u><u></u></p>
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<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">It seems that in paraview 3 it would interpolate inside the cell between the mesh points when building
the polymesh for the contour and now it is snapping the interpolation to nearest grid point of my unstructured mesh.</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span><u></u><u></u></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Berk
Geveci [<a href="mailto:berk.geveci@kitware.com" target="_blank">mailto:berk.geveci@kitware.com</a>]
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<b>Sent:</b> April 15, 2015 15:57<br>
<b>To:</b> Greenwood, Michael<br>
<b>Cc:</b> <a href="mailto:paraview@paraview.org" target="_blank">paraview@paraview.org</a><br>
<b>Subject:</b> Re: [Paraview] Contours of unstructured grid paraview 3 vs paraview 4</span><u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
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<p class="MsoNormal">Very strange. I can't recall a change that can cause this. Do you have a dataset that we can reproduce this with?<u></u><u></u></p>
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<p class="MsoNormal"> <u></u><u></u></p>
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<p class="MsoNormal">Best,<u></u><u></u></p>
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<p class="MsoNormal">-berk<u></u><u></u></p>
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<p class="MsoNormal"> <u></u><u></u></p>
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<p class="MsoNormal">On Wed, Apr 15, 2015 at 3:49 PM, Greenwood, Michael <<a href="mailto:Michael.Greenwood@nrcan-rncan.gc.ca" target="_blank">Michael.Greenwood@nrcan-rncan.gc.ca</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal">Hi I’ve upgraded to paraview 4 and now when building contours of my 3D unstructured grid, the contours are pixelated. This was not the case in 3, and when you look at a slice of
the contour overlayed with a slice of the volume data it is obvious that the contour in paraview 4 seems to be “hugging” the boundaries of my mesh instead of interpolating through it. How can I get my nice smooth contours I had in version 3?<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Thanks<u></u><u></u></p>
<p class="MsoNormal"><img border="0" width="403" height="394" src="cid:image001.png@01D07824.8183F910" alt="cid:image001.png@01D07796.42933DD0"><u></u><u></u></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
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<p class="MsoNormal"> <u></u><u></u></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
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<p class="MsoNormal"><br>
<br clear="all">
<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal"><span><span style="color:#888888">-- <u></u><u></u></span></span></p>
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<p class="MsoNormal"><span style="color:#888888">Cory Quammen<br>
R&D Engineer<br>
Kitware, Inc.</span><u></u><u></u></p>
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<p class="MsoNormal"><br>
<br clear="all">
<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
</div>
<p class="MsoNormal">-- <u></u><u></u></p>
<div>
<p class="MsoNormal">Cory Quammen<br>
R&D Engineer<br>
Kitware, Inc.<u></u><u></u></p>
</div>
</div>
</div></div></div>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature">Cory Quammen<br>R&D Engineer<br>Kitware, Inc.</div>
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