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<font face="monospace">I am working on a high order finite element
code and using VTK to output my results for plotting with
Paraview. Since each cell contains potentially much more
information than a single VTK bilinear cell can hold (we typically
use order polynomials of order 2 or 3, but sometimes up to 5), I
have implemented subcell sampling to output each cell as multiple
cells to VTK. The problem with this approach is that it is pretty
important to us to view the actual grid used, but this tricks VTK
and Paraview into thinking we are using a finer grid. I would like
to be able to output the real coarse grid that we are using and
overlay this on top of the surface plots that we are getting from
the subcell sampling strategy.<br>
<br>
So, first of all, does anyone know how this could be done? I am
also open to other alternatives to my subcell sampling approach,
since I could see this getting complicated with triangles and
eventually moving into 3D.<br>
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<pre class="moz-signature" cols="72">--
Truman Ellis</pre>
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