[vtkusers] Restrict vtkSplineWidget to actor

[Dean Inglis]

Hi Mathieu,

vtkSplineWidget does not use point placer classes internally, so it
wouldn't be straight forward to restrict
the widget to a given actor.  You could use a callback to restrict the
handle positions to the actor, but the complexity
of restricting the handles will depend on the surface geometry of the actor.
It may be easier to use a vtkContourWidget has a vtkContourRepresentation
which has methods to set a point placer.

Dean


On Wed, Jun 5, 2013 at 3:51 AM, Mathieu Moigner <mmoigner at phenix-systems.com
> wrote:

> Hi all,
>
>
> Is it possible to restrict a vtkSplineWidget to a given actor ?
>
> I'd like to modify HandleRepresentation of the first and last point using
> a vtkPolygonalSurfacePointPlacer instead of default point placer.
>
>
> But looks like the representation of the handles in the vtkSplineWidget
> are private. There are no option to set the individual handles to the Prop.
>
> Any idea ?
>
> Thanks for your help.
>
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