# encoding: utf-8 # # This transformation is used to rotate the user space. Give it an angle # and an :origin point about which to rotate and a block. # Everything inside the block will be drawn with the rotated coordinates. # # The angle is in degrees. # # If you omit the :origin option the page origin will be used. # require File.expand_path(File.join(File.dirname(__FILE__), %w[.. example_helper])) filename = File.basename(__FILE__).gsub('.rb', '.pdf') Prawn::Example.generate(filename) do stroke_axis fill_circle [250, 200], 2 12.times do |i| rotate(i * 30, :origin => [250, 200]) do stroke_rectangle [350, 225], 100, 50 draw_text "Rotated #{i * 30}°", :size => 10, :at => [360, 205] end end end