    pfn['Bour'] = vtkParametricBour()
    pfn['CatalanMinimal'] = vtkParametricCatalanMinimal()
    pfn['Henneberg'] = vtkParametricHenneberg()
    pfn['Kuen'] = vtkParametricKuen()
    pfn['PluckerConoid'] = vtkParametricPluckerConoid()
    pfn['Pseudosphere'] = vtkParametricPseudosphere()
--
    surface = vtkParametricBour()

    source = vtkParametricFunctionSource()
    source.SetUResolution(u_resolution)
    source.SetVResolution(v_resolution)
    source.GenerateTextureCoordinatesOn()
