摘要
介绍了等高线特征点空间抽样的准则以及传统的空间抽样方法,给出了Douglas-Peuker算法的实现方法,利用实际测量数据进行了实验。实验表明本算法是有效的,具有较高的效率、较大的压缩比和较好的保形性。
Curve compression has important application value in geographic information system.Described is the 3D sampling principle of contour feature points;presented are the methods of the traditional 3D sampling and Douglas-Peuker algorithm implementation.Moreover,based on the actually measured data the experiment was taken.The experiment results show that the algorithm outlined in this paper is effective and has higher efficiency,larger compressing ration and low distortion.
出处
《天然气与石油》
2005年第3期11-13,共3页
Natural Gas and Oil
