[vtkusers] Re: Flipping the image with vtkCamera::Yaw() makes image disappear

[Dean Inglis]

Hi Jesús,

sorry about the cut n paste error,
to flip horizontal, forget about the view up
flipping...

/// flip horizontal --------

  vtkRenderer* renderer;
  if (this->ImageViewer && (renderer = this->ImageViewer->GetRenderer()) !=
NULL )
    {
    int axis = this->ImageViewer->GetSliceOrientation();
    double cameraPosition[3];
    renderer->GetActiveCamera()->GetPosition(cameraPosition);
    double cameraFocalPoint[3];
    renderer->GetActiveCamera()->GetPosition(cameraFocalPoint);
    for ( int i = 0; i < 3; ++i )
      {
      cameraPosition[i] = 2.0*cameraFocalPoint[i] - cameraPosition[i];
      }
    renderer->GetActiveCamera()->SetPosition(cameraPosition);
    renderer->ResetCameraClippingRange();
    this->ImageViewer->Render();
    }

Dean