    warpTo = vtkWarpTo()
    warpTo.SetInputConnection(tubeFilter.GetOutputPort())
    warpTo.SetPosition(10, 1, 0)
    warpTo.SetScaleFactor(5)
    warpTo.AbsoluteOn()

--
    arrowWT = vtkWarpTo()
    arrowWT.SetInputConnection(arrowCF.GetOutputPort())
    arrowWT.SetPosition(5, 0, 5)
    arrowWT.SetScaleFactor(0.85)
    arrowWT.AbsoluteOn()

--
    arrowWT2 = vtkWarpTo()
    arrowWT2.SetInputConnection(arrowCF.GetOutputPort())
    arrowWT2.SetPosition(5, 0, 2.5)
    arrowWT2.SetScaleFactor(0.95)
    arrowWT2.AbsoluteOn()

--
    arrowWT = vtkWarpTo()
    arrowWT.SetInputConnection(arrowCF.GetOutputPort())
    arrowWT.SetPosition(5, 0, 5)
    arrowWT.SetScaleFactor(0.85)
    arrowWT.AbsoluteOn()

--
    arrowWT2 = vtkWarpTo()
    arrowWT2.SetInputConnection(arrowCF.GetOutputPort())
    arrowWT2.SetPosition(5, 0, 2.5)
    arrowWT2.SetScaleFactor(0.95)
    arrowWT2.AbsoluteOn()

