<div>Hello all,</div>
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<div>I would like to use vtkSmoothPolyDataFilter on an unstructuredGrid, but i read the particular filter applies only to vtkPolyData.</div>
<div>My unstructuredGrid consists of hexahedrons.</div>
<div>How could i use the filter?</div>
<div>One idea i thought is to extract the surface iterately and apply to these surfaces, but i don't know if it's ok.</div>
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