使用道格拉斯抽稀算法依据给定参数将折线进行抽稀以在尽量保证折线特点的前提下减少点的数量。-Using Douglas thinning algorithm based on the given parameters will be thinning line to try to ensure polyline features in the premise of reducing the number of points.

道格拉斯-普克抽稀算法python实现。用于空间数据抽稀。(Douglas-Puck thinning algorithm implemented in python. Used for thinning spatial data.)