[vtkusers] How to get neighbor points in a polydata without cells?

[soheilghafurian]

I have used vtkCutter to cut a polydata by a plane and I have save the output
contour as polydata. Now, I want to get the neighbor points to a point on
it, but I don't know how to do it.

I usually use polydata->GetPointCells() and then polydata->GetCellPoints(),
but the problem is the contour doesn't seem to have any cells! does anyone
know how I could get the neighbor points?

Thanks a lot

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