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<p class="MsoNormal"><span style="color:#1F497D">Ken,<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">Thanks a lot for your reply.<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">After a few trials I realized that to animate deformation it is best to define the nodal coordinates at each time step, therefore I am not using WarpByVector for the animation and the facets are not an issue
for me at this time. However, your suggestion about putting a feature request could be useful when we want to animate w/o defining time steps.<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">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Carlos<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"><b>From:</b> Moreland, Kenneth [mailto:kmorel@sandia.gov] <br>
<b>Sent:</b> Tuesday, April 26, 2016 12:25 PM<br>
<b>To:</b> Carlos Baumann <CBaumann@slb.com>; paraview@paraview.org<br>
<b>Subject:</b> Re: [Paraview] Paraview not using normals data when rendering WarpByVector<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Carlos,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">I suspect the warp by vector filter is removing the normals because in general warping a surface invalidates the normals. Perhaps a feature request could be to add an option to warp by vector to
preserve the normals.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">There is a filter to generate normals on a polygonal surface. It works by averaging the normals of incident polygons, but I don't think it is weighted by area.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">-Ken<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">ParaView <<a href="mailto:paraview-bounces@paraview.org">paraview-bounces@paraview.org</a>> on behalf of Carlos Baumann <<a href="mailto:CBaumann@slb.com">CBaumann@slb.com</a>><br>
<b>Date: </b>Monday, April 25, 2016 at 11:16 AM<br>
<b>To: </b>"<a href="mailto:paraview@paraview.org">paraview@paraview.org</a>" <<a href="mailto:paraview@paraview.org">paraview@paraview.org</a>><br>
<b>Subject: </b>[EXTERNAL] [Paraview] Paraview not using normals data when rendering WarpByVector</span><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Hello Paraview !<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">The attached .vtk file has quad elements defining a tube,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">for each point or node it has defined a scalar Pressure, and two vectors, Displacement and Normals.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">When I render “Displacement Magnitude” on the surface, the normal are used, this is perfect and this is what I want, see attached snapshot,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">However when I use WarpByVector to deform the geometry, and plotting “Displacement Magnitude” on the surface, the normals are not used,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">each element uses its own normal, and I see the facets. How can I change this so that the normals that I have defined in the .vtk file are used ?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Ideally I would want Paraview to use the normal at any point/node by averaging the normal of all the elements attached, weighted by the area,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">can this be done automatically with GUI settings ?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Thank you in advance for your help.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Regards,<br>
Carlos<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
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