[vtkusers] vtkCutter using vtkPolyPlane extends beyond polyline's endpoints

[Luca Pallozzi Lavorante]

Hi vtkusers,

I have a vtkUnstruturedGrid showing depositional data and I'd like to cut
this data using contiguous vertical slices defined by a vtkPolyLine. I have
seen in the documentation that vtkPolyPlane generates the right implicit
function which I can pass to vtkCutter.
The resulting cuts are OK, but my vertical slices extends beyond my
polyline's endpoints. I would like to end the cutting planes exaclty at my
polyline's first and last point. Is this possible?
I am using VTK 7.0 on Linux.

  Thank you very much for any help

                Luca
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