Automatic generalization of metro maps based on dynamic segmentation  

作　　者：DONG WeiHua 1,TIAN Yuan 2 & ZHANG Yi 2 1 Institute of Geography and Remote Sensing,Beijing Normal University,Beijing 100875,China 2 Institute of Remote Sensing and Geographic Information System,Peking University,Beijing 100871,China 

出　　处：《Science China(Technological Sciences)》2010年第S1期158-165,共8页中国科学（技术科学英文版）

基　　金：supported by the Research Fund for the Doctoral Programof Higher Education(Grant No.20090003120005);the Research Fundfrom State Key Laboratory of Information Engineering in Surveying,Map-ping and Remote Sensing(Grant No.09I03);the National Key Technologies R&D Program of China(Grant Nos.2008BAJ11B04,2006BAJ14B04);the National Natural Science Foundation of China(Grant Nos.40928001,40701134,40771171);the National Hi-Tech Research and Development Program of China("863"Project)(Grant Nos.2007AA120502,2007AA12Z212,2007AA12Z215)

摘　　要：A metro map is usually optimized for the readability of connections and transportation networks structure.In order to assure good readability and meet aesthetic considerations,a set of principles for good metro map layout are proposed.According to these principles,a new methodology based on dynamic segmentation is presented to produce the metro maps automatically.Firstly,routes are constructed according to the line attribute similarity and geometry continuity.Then a set of cartographic generalization methods about the shape,angle,length,and topology are presented for these routes.This method is validated by Beijing metro plan map.From the experiment results,it can be concluded that this new method is more effective than the static segmentation method to produce metro maps with better readability for route plans.A metro map is usually optimized for the readability of connections and transportation networks structure.In order to assure good readability and meet aesthetic considerations,a set of principles for good metro map layout are proposed.According to these principles,a new methodology based on dynamic segmentation is presented to produce the metro maps automatically.Firstly,routes are constructed according to the line attribute similarity and geometry continuity.Then a set of cartographic generalization methods about the shape,angle,length,and topology are presented for these routes.This method is validated by Beijing metro plan map.From the experiment results,it can be concluded that this new method is more effective than the static segmentation method to produce metro maps with better readability for route plans.

关 键 词：METRO MAPS GENERALIZATION DYNAMIC SEGMENTATION VISUALIZATION 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]