    appendFilter = vtkAppendPolyData()
    appendFilter.AddInputData(input1)
    appendFilter.AddInputData(input2)

    appendFilter.Update()

--
    appendF = vtkAppendPolyData()
    appendF.AddInputConnection(tpd1.GetOutputPort())
    appendF.AddInputConnection(tpd2.GetOutputPort())
    appendF.AddInputConnection(tpd3.GetOutputPort())

    # The vtkProbeFilter takes two inputs. One is a dataset to use as the probe
--
    appendF = vtkAppendPolyData()
    appendF.AddInputConnection(plane.GetOutputPort())
    appendF.AddInputConnection(plane2.GetOutputPort())
    appendF.AddInputConnection(plane3.GetOutputPort())

    # Warp
--
    appendF = vtkAppendPolyData()
    appendF.AddInputConnection(plane.GetOutputPort())
    appendF.AddInputConnection(plane2.GetOutputPort())
    appendF.AddInputConnection(plane3.GetOutputPort())

    warp = vtkWarpScalar()
--
    appendAll = vtkAppendPolyData()
    appendAll.AddInputConnection(VTransformFilter.GetOutputPort())
    appendAll.AddInputConnection(TTransformFilter.GetOutputPort())
    appendAll.AddInputConnection(KTransformFilter.GetOutputPort())

    # Create normals.
--
    camAPD = vtkAppendPolyData()
    camAPD.AddInputConnection(camCBS.GetOutputPort())
    camAPD.AddInputConnection(camCS.GetOutputPort())

    camMapper = vtkPolyDataMapper()
    camMapper.SetInputConnection(camAPD.GetOutputPort())
