摘要
平面裁剪是计算机图形设计和处理中的基本问题之一。本文利用图形有效边界相交其交点的出入性质,不需要任何判别就能正确迅速地输出被裁剪后的图形.特别是根本不需要任何前处理,就能够解决裁剪窗口为具有凹凸性的带有内孔的任意形状的裁剪问题,并将内、外裁剪统一成为了一个通用算法。
The 20 clipping is one of the basic problems in Computer Graphics.This paper utilizes the characteritstics of the coming in and going out of the intersec- tion point which is on the effective boundary of the grapic.There is no need for any discrimination.The clipped graphic can be draw up directly and quickly.
关键词
图形设计
裁剪窗口
裁剪
计算机
effective boundary
characteristic of come in and go out
concave convex
arbitrary shape
clipping window
inside
outside clippmg
