=========================================================================*/
/* ---------------------------------------------------------------------
=========================================================================*/
/* ---------------------------------------------------------------------
mVtkCallback = VtkCallbackType::New();
mVtkCallback->SetBlackBox(this);
planeWidgetX->AddObserver(vtkCommand::InteractionEvent,mVtkCallback);
planeWidgetY->AddObserver(vtkCommand::InteractionEvent,mVtkCallback);
mVtkCallback = VtkCallbackType::New();
mVtkCallback->SetBlackBox(this);
planeWidgetX->AddObserver(vtkCommand::InteractionEvent,mVtkCallback);
planeWidgetY->AddObserver(vtkCommand::InteractionEvent,mVtkCallback);