    source1 = vtkImageMandelbrotSource()
    source1.SetWholeExtent(0, 255, 0, 255, 0, 0)
    source1.Update()

    source1Double = vtkImageCast()
    source1Double.SetInputConnection(0, source1.GetOutputPort())
--
    source = vtkImageMandelbrotSource()
    source.Update()

    print(source.GetOutput().GetScalarTypeAsString())

    castFilter = vtkImageCast()
