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<p class="MsoNormal"><span lang="EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I’m sending a small reproducer (made of a quadratic hexaedron element connected to a quadratic wedge ) for the following bug : depending on the orientation of the elements, the triangulation algorithm failed to delivers
an input usable by the surface mapper with a NonLinearSubdivisionLevel >=1: <o:p>
</o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span lang="EN-US"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US">for a value of 0, the external boundaries are displayed correctly,<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span lang="EN-US"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US">for a value of 1, the shared faces/nodes between the hexaedron and the wedge is displayed as an external boundary (i.e. the shared faces are considered different whereas they are based on the same nodes.)<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span lang="EN-US"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US">for a value of 2 and more, the subdivision leads to a buggy on-screen representation.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The first file (*_ok.vtk) will show the expected behavior for a NonLinearSubdvisionLevel value of 0 and 1.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The second file (*_ko.vtk) will show the incorrect behavior for a NonLinearSubdvisionLevel value 1.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">If you look at the subelements used for dividing each faces of the hexaedron and the wedge (with a surface mapper and an opacity of 0.5 for instance), you will notice a mismatch between the ones created on the hexaedron
and the ones created on the wedge. This leads to an incorrect vizualisation of an unshared face between both cells…<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Are you aware of this issue (present in 5.10.1 version at least and still there in 6.1.0.rc1) ?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Can this easily be fixed (the behavior seen in 5.6.1 is correct for a NonLinearSubdivisionLevel value-like of 1) ?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Eloi<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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