Let P and Q be two nonintersecting simple polygons in the plane, this paper discusses the rotational movability of them if P rotates around a point and collides with Q .
设P和Q为平面内两个互不相交的简单多边形 ，若 P在平面内绕某点旋转 ，文中讨论了其旋转可移动性问题 。
A closest distance computation method for simple polygons has been presented in this paper, which can be used to get the line segments (one chain from each polygon) of polygons at the same time.
提出简单多边形距离计算方法，在计算简单多边形最近距离的同时，可以求得多边形之间彼此面对的线段链。
A closed curve is a path that repeats itself, and thus encloses one or more regions. Simple examples include circles, ellipses, and polygons.
封闭曲线的路径是循环的，包围一个或更多区域，简单的例子如圆、椭圆、多边形。
A closed curve is a path that repeats itself, and thus encloses one or more regions. Simple examples include circles, ellipses, and polygons.
封闭曲线的路径是循环的，包围一个或更多区域，简单的例子如圆、椭圆、多边形。
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