I am using vtkExtractPolyDataPiece in the mobile kiwi library. This filter is in Filters/Parallel, a module that depends on Parallel/Core and Parallel/MPI. The filter does not require MPI, nor does it require anything from Parallel/Core. It would be convenient (for me :-) if this filter (and similar filter vtkExtractUnstrcturedGridPiece) were moved to a module that doesn't depend on MPI (to Filters/Extraction maybe?) Or... I could develop my own routine to use instead of vtkExtractPolyDataPiece, since it does not do precisely what I'm after.<br>
<br>Pat<br>