vtkImagePlaneWidget doesn't interpolate the slices
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
The value of ResliceInterpolate for defaults to VTK_LINEAR_RESLICE, but when the image is displayed, interpolation is off. Calling SetResliceInterpolateToLinear() does not fix this. The only way to do linear interpolation is to first set the ResliceInterpolate to something other than VTK_LINEAR_RESLICE, and then change it back to VTK_LINEAR_RESLICE.