    mapper = vtkGlyph3DMapper()
    mapper.SetInputData(pd)
    mapper.SetSourceConnection(sphere_source.GetOutputPort())
    mapper.ScalarVisibilityOff()
    mapper.ScalingOff()

--
    pointMapper = vtkGlyph3DMapper()
    pointMapper.SetInputData(polyData)
    pointMapper.SetSourceConnection(sphere.GetOutputPort())

    pointActor = vtkActor()
    pointActor.SetMapper(pointMapper)
--
        point_mapper = vtkGlyph3DMapper()
        point_mapper.SetInputData(cells[key][0])
        point_mapper.SetSourceConnection(sphere.GetOutputPort())
        point_mapper.ScalingOn()
        point_mapper.ScalarVisibilityOff()

--
        point_mapper = vtkGlyph3DMapper()
        point_mapper.SetInputData(cells[key][0])
        point_mapper.SetSourceConnection(sphere.GetOutputPort())
        point_mapper.ScalingOn()
        point_mapper.ScalarVisibilityOff()

--
    mapper = vtkGlyph3DMapper()
    mapper.SetInputData(pd)
    mapper.SetSourceConnection(sphere_source.GetOutputPort())
    mapper.ScalarVisibilityOff()
    mapper.ScalingOff()

--
    pointMapper = vtkGlyph3DMapper()
    pointMapper.SetInputConnection(reader.GetOutputPort())
    pointMapper.SetSourceConnection(sphere.GetOutputPort())
    pointMapper.ScalingOff()
    pointMapper.ScalarVisibilityOff()

