Building Simplification Algorithms Based on User Cognition in Mobile Environment
With the development of LBS,mobile map should adaptively satisfy the cognitive requirement of user.User cognition in mobile environment is much more objective oriented and also seem to be a heavier burden than the user in static environment.The holistic idea and methods of map generalization can not fully suitable for the mobile map.This paper took the building simplification in habitation generalization as example,analyzed the characteristic of user cognition in mobile environment and the basic rules of building simplification,collected and studied the state-of-the-art of algorithms of building simplification in the static and mobile environment,put forward the idea of hierarchical building simplification based on user cognition.This paper took Hunan road business district of Nanjing as test area and took the building data with shapfile format of ESRI as test data and realized the simplification algorithm.The method took user as center,calculated the distance between user and the building which will be simplified and took the distance as the basis for choosing different simplification algorithm for different spaces.This contribution aimed to hierarchically present the building in different level of detail by real-time simplification.
Building simplification generalization cognition
Shen Jie Shi Junfei Wang Meizhen Wu Chenyan
Institute of Geographic Science,Nanjing Normal University;Key Laboratory of Virtual Geographic Environment,Ministry of Education,Nanjing Normal University,No.1 Wenyuan Road,210046 Nanjing,P.R.China
国际会议
第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)
广州
英文
2008-06-28（万方平台首次上网日期，不代表论文的发表时间）