Contents Preface xiii About the Authors xv CHAPTER 1. INTRODUCTION 1 1.1 About this Book 2 1.1.1 Typographic Conventions 3 1.2 Graphics on Handheld Devices 3 2.1 2.2 Coordinate Systems 27 29 29 31 31 32 33 33 34 1.2.1 1.2.2 1.2.3 1.2.4 1.2.5 Device