[vtkusers] Change Key Binding of vtkInteractorStyleTrackballCamera class

[David Doria]

On Thu, Jan 13, 2011 at 6:04 AM, Anand.rp <anand.rp at teamta.in> wrote:
>
> I want to change the mouse key bindings associated with
> vtkInteractorStyleTrackballCamera class. How can I change
> it.
>
> I want --------  Left button down - rotate
>                        right button down- pan
>                    both button down - zoom
>
>
> pls help

Try subclassing the style as is done here:
http://www.vtk.org/Wiki/VTK/Examples/Cxx/Interaction/MouseEvents

but call the new button assignment with the old button event handler:
    virtual void OnLeftButtonDown()
    {
      vtkInteractorStyleTrackballCamera::OnRightButtonDown();
    }

David