一个用于生成多边形最小凸包的简单程序，基本功能就是用鼠标随意画一个多边形，然后计算并生成多边形最小凸包。很难得-Minimum convex polygon of a package used to generate a simple procedure, the basic function is free to draw a polygon with the mouse, and then calculates and generates the smallest convex polygo