        label_mapper = vtkLabeledDataMapper()
        label_mapper.SetInputData(cells[key][0])
        label_mapper.SetLabelTextProperty(label_property)

        label_actor = vtkActor2D()
        label_actor.SetMapper(label_mapper)
--
        label_mapper = vtkLabeledDataMapper()
        label_mapper.SetInputData(cells[key][0])
        label_mapper.SetLabelTextProperty(label_property)

        label_actor = vtkActor2D()
        label_actor.SetMapper(label_mapper)
--
    labelMapper = vtkLabeledDataMapper()
    labelMapper.SetInputConnection(reader.GetOutputPort())
    labelActor = vtkActor2D()
    labelActor.SetMapper(labelMapper)

    # The geometry
