An efficient algorithm for polygon triangulation.

求任何多边形的重心VB程序，总结了各种在线算法的精华，多边形拐点顺序没有限制。-Seek the center of gravity of any polygon VB program, summed up the essence of a variety of online algorithms, polygon turning point of order there is no limit.

这是一个判断点是否在多边形内的很漂亮的算法。-This is a point to determine whether the polygon is very beautiful algorithms.