[vtkusers] reslice problem

[lydia many]

Hi folks
I used vtkImageReslice to display a stack of slices in axial, coronal and 
saggital orientation.
The problem is that I need to display slice by slise using VisualC++ and 
inventor library.
The probelem is the following:Images conversion from vtkImageData to 
inventor images.
when I convert  vtkImagereader->Getoutput which gives a vtkImageData, it 
works if I use    vtkImagereader->SetDataExtent(0,0,255,255,i,i)
I can get an image structure which I can convert

BUT

When I use vtkImageReslice, and use SetOutputExtent(0,255,0,255,i,i)
it gives always the same image and dosn't change.
Is there any solution to this problem
Any help will be appreciated

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