Hi David, Thanks for that info. But, in case of the oblique slicing how can i calculate new spacing ? Regards Zarko -- View this message in context: http://vtk.1045678.n5.nabble.com/vtkImageReslice-and-appending-slices-tp5728537p5728608.html Sent from the VTK - Users mailing list archive at Nabble.com.