Graphics clipping and covering is one of the key points in computer graphics field. After more study and practice, a new algorithm is give, which is for clipping and covering in circular window.
图形的裁剪与覆盖是计算机图形学中较为热点研究的问题，作者对此进行了深入的研究与实践，提出了较为理想的圆形窗口“裁剪与覆盖”的计算机辅助设计新算法。
At the middle level, a portable graphics engine provides support for line draws, area fills, polygons, clipping, and color models.
在中间层，可移植的图形引擎提供对线的绘制、区域的填充、多边形、裁剪以及颜色模型的支持。
Clipping is one of basic problems in computer graphics.
裁剪是计算机图形学中的一个基本问题。
Clipping algorithm is an basic algorithm in the Computer Graphics and the base of a lot of important task.
裁剪算法是计算机图形学中的基本算法，也是其它诸多重要问题的基础。
Two commonly used operations in computer graphics are clipping and masking.
两个常用的操作在计算机图形学中是剪裁和掩蔽。
In computer graphics and CAD, the clipping Windows researched up to now are all rectangular or polygonal. But in practice circular or elliptic clipping Windows are often used.
在计算机图形学及CAD中，到目前为止所研究的裁剪窗口都是矩形或多边形的，而在实际应用中经常要用到圆形或椭圆形裁剪窗口。
The technology of line clipping plays an important role, and is a foundation of many important problems in the computer graphics process. There are a lot of good algorithms about a line clipping.
线裁剪技术在计算机图形处理中占有重要地位，是计算机图形学中许多重要问题的基础，关于线段的二维裁剪有许多成熟的算法。
The technology of line clipping plays an important role, and is a foundation of many important problems in the computer graphics process. There are a lot of good algorithms about a line clipping.
线裁剪技术在计算机图形处理中占有重要地位，是计算机图形学中许多重要问题的基础，关于线段的二维裁剪有许多成熟的算法。
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