how to rotate camer on a reslice image and change the image display?

I display a image in renderer, and rotate some degree of camera, but the image of displaying don’t have difference. after rotation, I got the parameter of image, it has changed.

vtkSmartPointer reader = vtkSmartPointer::New();
reader->SetDirectoryName(“D:\test”);
reader->Update();
vtkSmartPointer m_Renderer = vtkSmartPointer::New();
vtkSmartPointer RenderWindowInteractor = vtkSmartPointer::New();

vtkSmartPointer m_RenderWindow = vtkSmartPointer::New();
m_RenderWindow->AddRenderer(m_Renderer);
m_RenderWindow->SetSize(640, 480);
m_RenderWindow->SetWindowName(“ImageViewerTest”);

RenderWindowInteractor->SetRenderWindow(m_RenderWindow);
RenderWindowInteractor->Initialize();

vtkSmartPointer< vtkImagePlaneWidget > m_ImagePlaneWidget = vtkSmartPointer< vtkImagePlaneWidget >::New();
vtkSmartPointer< vtkResliceCursorThickLineRepresentation > m_ResliceCursorRep = vtkSmartPointer< vtkResliceCursorThickLineRepresentation >::New();
vtkSmartPointer< vtkResliceCursor > m_ResliceCursor = vtkSmartPointer< vtkResliceCursor >::New();
vtkSmartPointer< vtkResliceCursorWidget> m_ResliceCursorWidget = vtkSmartPointer< vtkResliceCursorWidget>::New();

m_ResliceCursorRep->GetResliceCursorActor()->
GetCursorAlgorithm()->SetResliceCursor(m_ResliceCursor);
m_ResliceCursorRep->GetResliceCursorActor()->
GetCursorAlgorithm()->SetReslicePlaneNormal(1);
m_ResliceCursorWidget->SetInteractor(m_RenderWindow->GetInteractor());
m_ImagePlaneWidget->SetInteractor(m_RenderWindow->GetInteractor());
m_ImagePlaneWidget->SetDefaultRenderer(m_Renderer);
m_ResliceCursorWidget->SetDefaultRenderer(m_Renderer);
m_ResliceCursorWidget->SetRepresentation(m_ResliceCursorRep);

m_ResliceCursorWidget->SetEnabled(1);

m_ImagePlaneWidget->SetInputData(reader->GetOutput());
m_ImagePlaneWidget->SetPlaneOrientation(1);
m_ImagePlaneWidget->SetSliceIndex(256); //
double pos[3];
reader->GetOutput()->GetCenter(pos);
m_ResliceCursor->SetImage(reader->GetOutput());
m_ResliceCursor->SetCenter(pos);

m_ImagePlaneWidget->On();
m_ImagePlaneWidget->InteractionOn();

//////////////////////////////////////////////////////////////////////////
double range[2];
reader->GetOutput()->GetScalarRange(range);
m_ResliceCursorWidget->GetResliceCursorRepresentation()->
SetWindowLevel(range[1] - range[0], (range[0] + range[1]) / 2.0);
m_ImagePlaneWidget->SetWindowLevel(range[1] - range[0], (range[0] + range[1]) / 2.0);

m_Renderer->ResetCamera();
m_Renderer->SetBackground(1, 1, 1);

double *focus = m_Renderer->GetActiveCamera()->GetFocalPoint();
double *range1 = m_Renderer->GetActiveCamera()->GetClippingRange();
vtkSmartPointeraCamera = vtkSmartPointer::New();
aCamera = m_Renderer->GetActiveCamera();
//Azimuth Ele no result, roll can result yaw disappear
double *ori = aCamera->GetOrientation();
double *viewup = aCamera->GetViewPlaneNormal();
m_Renderer->GetActiveCamera()->Yaw(60);
double *pos1 = aCamera->GetPosition();
aCamera->Azimuth(60);
aCamera->ComputeViewPlaneNormal();
double *viewup1 = aCamera->GetViewPlaneNormal();
m_Renderer->SetActiveCamera(aCamera);
m_RenderWindow->Render();
RenderWindowInteractor->Start();

Could you describe what would you like to achieve? What you would like to visualize and how?

I want to see the back of image.
for example, when I reslice a image and display the front of image, now I want to rotate camera to the back of image and see the back of image. but I found I can’t see the back whatever I rotate the camera as if the camera didn’t move any more. I want to know, why the camera’s rotate setting why not effect? thanks