[Paraview] vtkPointDataToCellData but only for selected PointData

[David E DeMarle]

The pass arrays filter comes to mind.

If creating withing your python programmable filter it will be called
vtk.vtkPassArrays then follow that with a vtk.vtkPointDataToCellData.



David E DeMarle
Kitware, Inc.
Principal Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909

On Tue, Apr 10, 2018 at 10:07 AM, Dennis Conklin <
dennis_conklin at goodyear.com> wrote:

> All,
>
>
>
> Well, this list solved my problem so easily (and made me feel slightly
> less than the sharpest pencil in the box) yesterday, so I thought I’d try
> again.
>
>
>
> I am doing some Python calcs inside a programmable filter and some of the
> results I want to average from the Points onto the Cells.   But,  I don’t
> want all my PointData moved over to CellData – I want to transfer some of
> them over within my Filter.
>
>
>
> Right now I’m looping thru all the elements and finding all their nodes,
> then averaging them and assigning to the cells.  It is dog slow and is
> choking off the usefulness of this filter.
>
>
>
> Is there anything like vtkPointDataToCellData that lets me specify which
> quantities to convert – could I do something tricky like store original
> list of PointData, make up a new list, then run PointDataToCellData, then
> restore the list of PointData ??
>
>
>
> I realize this may have all sorts of unexpected side effects, so I’m just
> asking!
>
>
>
> Thanks again, this group is great!
>
>
>
> Dennis
>
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