扫描线算法的一种做法,填充法,计算机图形学作业-scan line algorithm approach, filling law, computer graphics operations

了解键盘结构，学习扫描法和行反转法判断按键的方法。了解用8个I/O设计更多的按键的方法。学会运用C语言编写键盘模块，并能体现SCI模块的功能。 -Understanding of the keyboard structure, learning method and line reversal scan to determine the method keys. Learn to use 8 I/O design more of the key methods. Learn to use t

描述了关于线段树的一些原理及基本操作，后面引用两个例题详细介绍了离散化，扫描线，以及二维线段树-Describes the segment tree some of the principles and basic operation, followed by reference to the two examples described in detail the discretization, scan lines, as well as two-dimensional segment tr