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Course Requirements 课程要求：
Know the framework of a graphical system, as well as the software/hardware technology of it;
Know the basic problems of computer graphics (CG), command the basic concepts, methods and algorithms in CG;
Contents in Chap. 1
➢Research topics in CG ➢History of development ➢Application Fields ➢Research frontiers and trends
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1.1 Research topics in CG
represent, generate, process and display graphics. （表示、生成、处理、显示） CG is one of the most active, widely applied branches in computer science.
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Department of Mathematics
➢References： ➢孙家广等，《计算机图形学（3rd）》 ，
清华大学出版社，1998-1。 ➢陈元琰，张晓竟，计算机图形学实用技
术，科学出版社，2000 ➢David F. Rogers 著，石教英，彭群生等
译，Procedural Elements for Computer Graphics (Second Edition)计算机图形学 的算法基础，机械工业出版社，2002
Have a initial understanding of the applications related to CG and the current research hotspot on CG;
Have practical experience in CG and related coding ability
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1.1 Research topics in CG
图形硬件、图形标准、图形交互技术、光 栅图形生成算法、曲线曲面造型、实体造 型、真实感图形计算与显示算法，以及科 学计算可视化、计算机动画、自然景物仿 真、虚拟现实等。
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How to represent graphics in computers? How to use computers to perform
graphical computation, processing and display? What are the principles and algorithms?
Two categories in graphics:
基于线条信息表示 明暗图(Shading)
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Hale Waihona Puke Department of Mathematics
20th Century 1960s ➢In 1962, MIT林肯实验室的I. E. Sutherland
发表了一篇题为“Sketchpad：一个人机 交互通信的图形系统”的博士论文 ➢1962年，雷诺汽车公司的工程师Pierre Bézier 提出Bézier曲线、曲面的理论 ➢1964年MIT的教授Steven A. Coons提出了 超限插值的新思想，通过插值四条任意 的边界曲线来构造曲面。
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• 考核形式：平时*40%+考试*60% • 考试形式：开卷
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Department of Mathematics
Chap. 1 Introduction
What is CG？ CG is a subject that studies how to
➢ In 1958, Calcomp Corp. (US) developed drum plotters (滚筒式绘图仪), GerBer Corp. developed flatbed plotters (平板式绘图仪).
➢ At the end of 1950s, the Lincoln Lab. of MIT developed SAGE air defense system on Whilwind computer.
graphics图形与images图象
image指计算机内以位图(Bitmap)形式存在 的灰度(gray)信息。
graphics含有几何属性(geometric information)，更强调场景(scene)的几何表 示(geometric representation)，是由场景的 几何模型(geometric model)和景物的物理属 性(physical property)共同组成的。
Department of Mathematics
Computer Graphics(CG) 计算机图形学
314581243@
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Department of Mathematics
➢Textbook： ➢孙家广，胡事民，《计算机图形学基础
教程》，人民邮电出版社， 2005-7。
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1.2 History of CG development
20th Century 1950s
➢ In 1950, the first graphic display in the world was made, as the accessory of MIT’s Whirlwind I computer.