通过在计算机上实现直线的扫描转换,学习和理解基本图形生成的原理和算法,掌握将数学的,模拟的图形变成数字的离散的计算机图形过程中的设计思想,计算方法和设计要求-Through the computer to achieve a straight line of scan conversion, learning and understanding generated by basic graphics principles and algorithms, will grasp the math,