    # File lib/compass/sass_extensions/sprites/layout_methods.rb, line 62
            def tile_images_that_repeat
              @images.map {|img| img if img.repeat_x?}.compact.each do |image|
                x = image.left - (image.left / image.width).ceil * image.width
                  while x < @width do
                    begin
                      img = image.dup
                      img.top = image.top
                      img.left = x.to_i
                      @images << img
                      x += image.width
                    end
                  end
                end
            end