Meanwhile, the sufficient and necessary condition for the orientation of an arbitrary simple polygon is given.
同时，给出了任意简单多边形走向的充要条件。
The polygon shape supports an arbitrary list of coordinate points that allow you to define irregular shapes.
多边形支援座标点的任意清单，可让您定义非标准图形。
The polygon shape supports an arbitrary list of coordinate points that allow you to define irregular shapes.
多边形支援座标点的任意清单，可让您定义非标准图形。
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