<div>vtkGeometryFilter works fine. I wonder if i could get back to unstructuredGrid and hexahedrons by using the points.</div>
<div>I noticed that the number of points are the same in unstructuredGrid and vtkGeometryFilter (vtkPolyData).</div>
<div>Could i "reproduce" the original hexahedron topology?</div>
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<div>Thanks,</div>
<div>Bill<br><br></div>
<div class="gmail_quote">2009/12/11 David Gobbi <span dir="ltr"><<a href="mailto:david.gobbi@gmail.com">david.gobbi@gmail.com</a>></span><br>
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<div class="h5">On Fri, Dec 11, 2009 at 7:11 AM, Bill Chivas <<a href="mailto:noo134@googlemail.com">noo134@googlemail.com</a>> wrote:<br>> Hello all,<br>><br>> I would like to use vtkSmoothPolyDataFilter on an unstructuredGrid, but i<br>
> read the particular filter applies only to vtkPolyData.<br>> My unstructuredGrid consists of hexahedrons.<br>> How could i use the filter?<br>> One idea i thought is to extract the surface iterately and apply to these<br>
> surfaces, but i don't know if it's ok.<br><br></div></div>I've seen some people create a "skin" polydata with vtkGeometryFilter,<br>apply the smoothing to the "skin" and then use a custom filter to<br>
propagate the smoothing throughout the interior of their mesh. The<br>vtkGeometryFilter is a basic anything-to-polydata filter, so it is<br>easy to use. The final step of using the smoothed polydata to create<br>a smoothed mesh is nontrivial, though.<br>
<font color="#888888"><br> David<br></font></blockquote></div><br>