The Analytical Expressions of the Constraints in Cartographic Generalization

摘要：

Optimization approaches applied in cartographie generalization seek to a sound solution based on a series of predefined constraints.In this paper,five types of constraints in the cartographic generalization are distinguished:position, simplification,shape characteristic,spatial relations and spatial distribution.Several observations in terms of measures for constraints are introduced.Accordingly to least squares adjustment theory,the analytical expressions (namely observation equations and conditional equations about residuals) of part graphic constraints are established. Furthermore,the simple example is given,the method of least square based on constraint is used to simplify building ground plan.The practice shows that the constraint method is feasible and effective.

关键词： Cartographic Generalization Optimization Constraints Least Squares Method Compromise

作者: Huake Hu Chunyan Zheng Yueming Hu

作者单位: School of Geographic Science and Tourism,Jiayin University,Meizhou,514015,China School of Geographic Science and Tourism,Jiaying University,Meizhou,514015,China College of nformatics,South China Agricultural University,Guangzhou,510642,China

会议类型: 国际会议

会议名称: The Fourth International Joint Conference on Computational Science and Optimization(第四届计算科学与优化国际大会 CSO 2011)

会议地点: 昆明、丽江

会议语种:英文

页码: 506-510

在线出版日期: 2011-04-15（万方平台首次上网日期，不代表论文的发表时间）