used vtkSmartPointer

diff --git a/common/vvImage.h b/common/vvImage.h
index 07987c7..29573cd 100644 (file)
--- a/common/vvImage.h
+++ b/common/vvImage.h
@@ -42,7 +42,7 @@ public :
   void SetImage(std::vector<vtkImageData*> images);
   void AddImage(vtkImageData* image);
   const std::vector<vtkImageData*>& GetVTKImages();
-  vtkImageData* GetFirstVTKImageData();
+  vtkSmartPointer<vtkImageData> GetFirstVTKImageData();
   int GetNumberOfDimensions() const;
   int GetNumberOfSpatialDimensions();
   void GetScalarRange(double* range);