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     //设置vtkImagePlaneWidget
     app->pview4->pvtkImagePlaneWidget->DisplayTextOn();
     app->pview4->pvtkImagePlaneWidget->SetInput((vtkDataSet *)pvtkImageReader->GetOutput());
     app->pview4->pvtkImagePlaneWidget->SetPlaneOrientationToXAxes();
     app->pview4->pvtkImagePlaneWidget->SetInteractor(/*(vtkRenderWindowInteractor *)*/app->pview4->pvtkMyMFCWindow_View4->GetRenderWindow()->GetInteractor());

     app->pview4->pvtkImagePlaneWidget->RestrictPlaneToVolumeOn();
     app->pview4->pvtkImagePlaneWidget->GetPlaneProperty()->SetColor(1,0,0);

     app->pview4->pvtkImagePlaneWidget->SetPlaneOrientationToXAxes();
     app->pview4->pvtkImagePlaneWidget->SetSliceIndex(32);
     app->pview4->pvtkImagePlaneWidget->DisplayTextOn();
     app->pview4->pvtkImagePlaneWidget->On();
     app->pview4->pvtkImagePlaneWidget->InteractionOff();
     app->pview4->pvtkImagePlaneWidget->InteractionOn();