Spatial Data Storage Model Based on Map Calculus for Online Map Generalization
Online map generalization has appeared as a vast and intricate research domain with growth of WEBGIS. The aim of this paper is to propose a “map calculus storage model of spatial data for online automatic map generalization which is to change the traditional online automatic map generalization storage model of certain scales LOD on the basis of geographic cognitive model of domain. This model grounds on single large scale spatial data to accomplish the indefinite scales zoom of online maps which is based on map calculus and spatial nesting relations with utilizing the nesting character of semi-structured spatial data and provides a new way to explore the further implementation of online map indefinite scales automatic generalization. A simplified case study in the application domain of online cadastre involving is examined closely.
Online automatic map generalization Map Calculus Semi-structured spatial data
Yang jun
Geography Information Science Centre Southwest Jiaotong University,Chengdu 610031,Sichuan Province,China
国际会议
福州
英文
204-207
2011-06-29（万方平台首次上网日期，不代表论文的发表时间）