[vtkusers] Casting vtkAxisActor2D* to vtkProp*

[Leonardo M. Ramé]

Hi, I need add a vtkActor2D* I'm getting with 
distanceWidget->GetRepresentation())->GetAxis() to a vtkProp*
to add it to a vtkPropPicker using this code:

picker->AddPickList(
  vtkDistanceRepresentation2D::SafeDownCast(
    distanceWidget->GetRepresentation())->GetAxis()
  )
);


If I use this, I get a "cannot dynamic_cast..." error.

lAxisActor = vtkDistanceRepresentation2D::SafeDownCast(
    distanceWidget->GetRepresentation()
  )->GetAxis();

picker->AddPickList(
        dynamic_cast<vtkProp *>( lAxisActor )
    );

Thanks in advance.

-- 
Leonardo M. Ramé
http://leonardorame.blogspot.com