[vtkusers] vtkimageReader wrongly read Volume Data File

[Steven Wu]

such a piece code but got wrong reading
vtkImageReader reader
reader SetFileName "/ImageData/3diMAGES/SPHERE40.RAW"
reader SetDataExtent 0 39 0 39 0 39
reader SetDataScalarTypeToUnsignedChar
reader SetDataSpacing 1 1 1
reader SetDataOrigin 0 0 0

I tried to test for other volume raw files but none
was readed correctly.  but if vtkImageReader reads 
multi files as volume data, it is ok.

Does anyone know what's problem in VTK 4.0



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