[vtkusers] Can't move vtkAxesActor with vtkInteractorStyleTrackballActor

[Karthik Krishnan]

The right way to modify the axes actor is to modify the camera. That's
its purpose (to follow the camera).
The trackball actor interactor style doesn't rotate the camera. It
simply changes the transform associated with individual actors as you
interact with them.


On Sun, Jan 10, 2010 at 3:59 PM, David Doria <daviddoria+vtk at gmail.com> wrote:
> If I use vtkInteractorStyleTrackballActor:
>
>  vtkSmartPointer<vtkInteractorStyleTrackballActor> style =
>      vtkSmartPointer<vtkInteractorStyleTrackballActor>::New(); //like paraview
>
>  renderWindowInteractor->SetInteractorStyle( style );
>
> I can move/rotate a normal actor:
>
>  vtkSmartPointer<vtkConeSource> coneSource =
> vtkSmartPointer<vtkConeSource>::New();
>  vtkSmartPointer<vtkPolyDataMapper> coneMapper =
> vtkSmartPointer<vtkPolyDataMapper>::New();
>  coneMapper->SetInput(coneSource->GetOutput());
>  vtkSmartPointer<vtkActor> coneActor = vtkSmartPointer<vtkActor>::New();
>  coneActor->SetMapper(coneMapper);
>  renderer->AddActor(coneActor);
>
> But I can't move/rotate an AxesActor:
>
> vtkSmartPointer<vtkAxesActor> axes = vtkSmartPointer<vtkAxesActor>::New();
> renderer->AddActor(axes);
>
> Anyone know why this might be?
>
> I tried setting:
> axes->DragableOn();
>
> but it appears 'true' is the default value, so that didn't change anything.
>
> Thanks,
>
> David
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