    # File ../lib/fox/glshapes.rb, line 583
        def initialize(*args)
          if args.length == 4
            super(args[0], args[1], args[2], SHADING_SMOOTH|STYLE_SURFACE)
          else
            super(args[0], args[1], args[2], SHADING_SMOOTH|STYLE_SURFACE,
                  args[4], args[4])
          end
          @radius = args[3] ? args[3] : 1.0
          @slices = SLICES_NUMBER
          @stacks = STACKS_NUMBER
          setRange(FXRange.new(-@radius, @radius, -@radius, @radius, -@radius, @radius))
        end