#!/usr/bin/ruby -w require 'RMagick' gc = Magick::Draw.new gc.pattern('checkerboard', 0, 0, 16, 16) { gc.fill('red') gc.stroke('black') gc.rectangle(0,0,7,7) gc.rectangle(8,8,15,15) gc.fill('black') gc.rectangle(8,0,15,7) gc.rectangle(0,8,7,15) } gc.stroke('checkerboard') gc.stroke_width(16) gc.fill_opacity(0) gc.ellipse(150, 75, 130, 60, 0, 360) i = Magick::ImageList.new i.new_image(300, 150, Magick::HatchFill.new('white','gray90',8)) gc.draw(i) #i.display i.write('pattern1.gif') exit