Based on profound study of various position relations between a line segment and a circle, a simple and rapid clipping algorithm for circular window is presented in this paper.
通过对直线段相对圆的各种位置关系作深入的研究，提出了一种简单而迅速的圆形窗口裁剪算法。
A rapid judgment on relative position relations between a line segment and a circle is presented in this paper.
提出了一种直线段相对于圆形区域位置关系的快速判别方法。
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