    # File lib/rvg/embellishable.rb, line 117
                def polypoints(points)
                    case points.length
                        when 1
                            points = Array(points[0])
                        when 2
                            x_coords = Array(points[0])
                            y_coords = Array(points[1])
                            unless x_coords.length > 0 && y_coords.length > 0
                                raise ArgumentError, "array arguments must contain at least one point"
                            end
                            n = x_coords.length - y_coords.length
                            short = n > 0 ? y_coords : x_coords
                            olen = short.length
                            n.abs.times {|x| short << short[x % olen]}
                            points = x_coords.zip(y_coords).flatten
                    end
                    n = points.length
                    if n < 4 || n % 2 != 0
                        raise ArgumentError, "insufficient/odd number of points specified: #{n}"
                    end
                    return Magick::RVG.convert_to_float(*points)
                end