    reader = vtkMCubesReader()
    reader.SetFileName(fileName)
    if not noConnectivity:
        reader.Update()
        print('Before Connectivity.')
        print('There are: ', NumberOfTriangles(reader.GetOutput()), 'triangles')
--
    reader = vtkMCubesReader()
    reader.SetFileName(fileName)
    reader.FlipNormalsOff()
    reader.Update()
    print('Before Decimation.')
    print('There are: ', NumberOfTriangles(reader.GetOutput()), 'triangles')
