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。
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。
It can suppress various shaped, circular tablet, engraved with the trademark double-sided and can be suppressed, text and simple graphics tablet.
它可压制各种异形、环形片剂，并可压制双面刻有商标、文字及简单图形的片剂。
Hand ring is a set of decorations on the wrist, the shape is circular, can be wide and narrow, the surface to print a text or graphics, for advertising or decoration.
手环是一种套在手腕上的装饰品，形状为环形，可宽可窄，表面多印有文字或图案，用以宣传或装饰。
Hand ring is a set of decorations on the wrist, the shape is circular, can be wide and narrow, the surface to print a text or graphics, for advertising or decoration.
手环是一种套在手腕上的装饰品，形状为环形，可宽可窄，表面多印有文字或图案，用以宣传或装饰。
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