How can I cut (clip) PolyData without closing the surface using vtk.js ?

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How can I cut PolyData without closing the surface using vtk.js ?
I would need something like vtkClipPolyData.
I have seen that there is vtkClipClosedSurface but it closes the surface.
I want something like this:
TestImplicitPlaneWidget2

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You can add clipping planes on the poly data mapper.

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I don’t understand how to do it
Do you mean this ? vtk.js
Could you give me a small example ?

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