# File vtk/tk/vtkTkRenderWidget.rb, line 453
def vtkRenderWidgetConeExample
??
    # create root window
    root = TkRoot.new

    # create vtkTkRenderWidget
    pane = Vtk::TkRenderWidget.new(root,'width'=>300,'height'=>300)

    ren = Vtk::Renderer.new
    pane.GetRenderWindow.AddRenderer(ren)

    cone = Vtk::ConeSource.new
    cone.SetResolution(8)

    coneMapper = Vtk::PolyDataMapper.new
    coneMapper.SetInput(cone.GetOutput)

    coneActor = Vtk::Actor.new
    coneActor.SetMapper(coneMapper)

    ren.AddActor(coneActor)

    # pack the pane into the tk root
    pane.pack

    # start the tk mainloop
    Tk.mainloop
end