一种基于多分辨率模型简化算法的等高线自动综合方法研究  

Research on the Method of the Auto-Generalization of Contour Based on the Algorithm of Multi-resolution Simplification

作　　者：朱文博[1] 毕如田[1] 郭磐石 张锦[3] 

机构地区：[1]山西农业大学资源环境学院,山西太谷030801 [2]山西亚太遥感新技术有限公司,山西太原030006 [3]太原理工大学矿业工程学院,山西太原030001

出　　处：《山西农业大学学报（自然科学版）》2008年第3期332-337,共6页Journal of Shanxi Agricultural University(Natural Science Edition)

基　　金：国家自然科学基金(40501071);山西省自然科学基金(20080110611)

摘　　要：提出了一种基于多分辨率模型简化算法实现等高线综合的方法。将离散点数据源建立原始TIN模型,利用最大独立点集法对TIN进行多分辨率变换,重新追踪等高线,从而实现等高线的自动综合。实验表明,该方法具有算法简单,实用性强,能良好的保持地形特征等优点。本研究是对综合领域的一种新方法的探索和实践,达到了对地貌进行综合的要求和目的,是实现地貌综合中的新的途径。This paper deals with the research on the auto-generalization of contour based on the algorithm of multi-resolution DEM tested in an experiment. The TIN was constructed based on the discrete regional point data and the contour was retraced and created after the TIN scale had changed by utilizing the algorithm of the most independent points aggregation. Consequently the auto--generalization was realized. This method is characterized by the advantages of simple algorithm, high practicability, as well as the ability to keep the original terrain. The research in this paper is the exploration and practice of a new method in the field of generalization, which can help to realize generalization. It proves to be an innovative way in the realization of relief form generalization.

关 键 词：等高线综合 多分辨率 DEM TIN 

分 类 号：P283.7[天文地球—地图制图学与地理信息工程]