[vtkusers] Rotating a vtkPlaneWidget around the normal

[Rasmus Reinhold Paulsen]

I am using the vtkPlaneWidget to guide the placement of another model. Is
there a way to rotate the widget around the normal, or do I have to
implement it myself?

With the standard interactors it is possible to rotate the actor around
the view vector by pressing CTRL. I am looking for a similar method for
the plane.

Any ideas?

Regards,
Rasmus