    cube = vtkAnnotatedCubeActor()
    cube.SetXPlusFaceText('R')  # Right
    cube.SetXMinusFaceText('L')  # Left
    cube.SetYPlusFaceText('A')  # Anterior
    cube.SetYMinusFaceText('P')  # Posterior
    cube.SetZPlusFaceText('S')  # Superior/Cranial
--
    cube = vtkAnnotatedCubeActor()
    cube.SetFaceTextScale(2.0 / 3.0)

    # Anatomic labelling.
    #
    cube.SetXPlusFaceText('A')
--
    annotated_cube = vtkAnnotatedCubeActor()
    annotated_cube.SetFaceTextScale(0.366667)

    # Anatomic labeling
    annotated_cube.SetXPlusFaceText('X+')
    annotated_cube.SetXMinusFaceText('X-')
--
    cube = vtkAnnotatedCubeActor()
    cube.SetXPlusFaceText(cube_labels[0])
    cube.SetXMinusFaceText(cube_labels[1])
    cube.SetYPlusFaceText(cube_labels[2])
    cube.SetYMinusFaceText(cube_labels[3])
    cube.SetZPlusFaceText(cube_labels[4])
--
    cube = vtkAnnotatedCubeActor()
    cube.SetXPlusFaceText(cube_labels[0])
    cube.SetXMinusFaceText(cube_labels[1])
    cube.SetYPlusFaceText(cube_labels[2])
    cube.SetYMinusFaceText(cube_labels[3])
    cube.SetZPlusFaceText(cube_labels[4])
--
    actor = vtkAnnotatedCubeActor()
    actor.GetCubeProperty().SetColor(colors.GetColor3d('PeachPuff'))

    # a renderer and render window
    renderer = vtkRenderer()
    renderWindow = vtkRenderWindow()
--
    axes_actor = vtkAnnotatedCubeActor()
    axes_actor.SetXPlusFaceText('L')
    axes_actor.SetXMinusFaceText('R')
    axes_actor.SetYMinusFaceText('I')
    axes_actor.SetYPlusFaceText('S')
    axes_actor.SetZMinusFaceText('P')
