基于象素的圆窗口的图形裁剪算法  

AN ALGORITHM FOR GRAPHICS' CLIPPING BASED ON PIXEL WITH CIRCULAR WINDOW

作　　者：唐棣[1] 孙岩[1] 

机构地区：[1]辽宁师范大学计算机系,大连116029

出　　处：《计算机应用与软件》2003年第10期68-69,共2页Computer Applications and Software

摘　　要：通过对现有的图形裁剪算法进行深入的研究后 ,认为现有的图形裁剪算法只能单纯的对简单的图形元素 (如直线 )进行裁剪 ,对复杂图形 (如自由曲线、不规则图形 )则不适用。本文提出了一种新颖而实用的在圆窗口下的对任意图形特别是图像进行裁剪的有效方法 ,越复杂的图形或图像越能体现本算法的优势 ,此算法的提出解决了对复杂图形的裁剪问题。本算法适用面广 ,并且裁剪过程简单。After studying in depth the recent algorithms for graphics clipping, we found that the recent algorithms can only be used for simple graphics(such as straight line)clipping and not for complicated graphics(such as curve and irregular graphics).The paper bring up a novel and practical clipping algorithm for arbitrary graphics clipping,especially image clipping,against circular window.Moreover the more complicated the graphics or the image,the more advantageous the algorithm.The algorithm solves the problem of complicated graphics clipping,and is used widely and simply.

关 键 词：计算机图形学 象素 圆窗口 图形裁剪算法 图形元素 线裁剪算法 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]