[vtkusers] [VTK] Possible bug in clipVolume2 and clipVolume3 tests

[David Cole]

> The compiler complains about the following statement:
>
>   dataset->SetDataSet(sample->GetOutput());
>
> The function SetDataSet expects a vtkDataSet * argument type and gets
> a vtkImageData * argument type.

Did you include "vtkImageData.h"? The vtkImageData class is a direct
subclass of vtkDataSet, so it should not be a problem.

HTH,
David C.