    hexagonalPrism = vtkHexagonalPrism()
    for i in range(0, numberOfVertices):
        hexagonalPrism.GetPointIds().SetId(i, i)

    ug = vtkUnstructuredGrid()
    ug.InsertNextCell(hexagonalPrism.GetCellType(),
--
    hexagonal_prism = vtkHexagonalPrism()

    scale = 2.0
    hexagonal_prism.GetPoints().SetPoint(0, 11 / scale, 10 / scale, 10 / scale)
    hexagonal_prism.GetPoints().SetPoint(1, 13 / scale, 10 / scale, 10 / scale)
    hexagonal_prism.GetPoints().SetPoint(2, 14 / scale, 12 / scale, 10 / scale)
