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<p style="margin-top:0;margin-bottom:0">Hi Mark,</p>
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<p style="margin-top:0;margin-bottom:0">One example of non-affine (hex8's vertex) coordinate transformation is in usrdat() of </p>
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<p style="margin-top:0;margin-bottom:0"><a href="https://github.com/Nek5000/NekExamples/blob/master/vortex/r1854a.usr" class="OWAAutoLink" id="LPlnk311574" previewremoved="true">https://github.com/Nek5000/NekExamples/blob/master/vortex/r1854a.usr</a></p>
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<p style="margin-top:0;margin-bottom:0">Aleks<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Nek5000-users <nek5000-users-bounces@lists.mcs.anl.gov> on behalf of nek5000-users@lists.mcs.anl.gov <nek5000-users@lists.mcs.anl.gov><br>
<b>Sent:</b> Saturday, November 25, 2017 10:17:58 PM<br>
<b>To:</b> nek5000-users<br>
<b>Subject:</b> [Nek5000-users] mesh deformation</font>
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<div>Hi, Neks!<br>
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I am interesting in how could I deform only the bottom layer of points in a spectal element? In usrdat2 i,j,k, indices correspond to different axes of the global mesh. For example, xm1(1,1,1,e) could be a coordinate of different vertices for different elements.<br>
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Best regards,<br>
Mark </div>
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