Douglas-Peuker算法压缩地图线数据

\Douglas-Pcucker算法的源代码和解析-Douglas-Pcucker

道格拉斯普克算法，用于轨迹或者地图形状压缩； 这类算法在地理信息系统中有大量的类似算法，并且有很多研究人员予以了改进(Douglas Peucker algorithm for trajectory or map shape compression; This kind of algorithm has a large number of similar algorithms in the geographic information system, and many researche