A Spatial Indexing System for Visualizing Database

摘要：

The XML-enabled Spatial Visualizing Database can be widely used because of its high security and convenience of management.It is often implemented by relational databases.But,these databases cant index points,curves and surfaces separately based on their characteristics.In addition,the indexing systems of these databases are not capable of creating the function of indexing on a wide range of relational databases.These limitations were solved by the following two steps in the paper.Firstly,referring to the SVG spatial expressional model,bring up a solution to index points,curves,and surfaces separately with different algorithms.Secondly,elaborately design a spatial indexing system with high cohesion and low coupling by using three design patterns:Template Method,Bridge and Adapter.Eventually,our system has three achievements:1) separately index points,curves and surfaces with different algorithms catering for the users;2) index SVG visualizing data on heterogeneous relational databases;3) many of the open-source spatial indexing projects can be used in this system after modifying some codes.Experiments have been carried out to prove the conclusions mentioned above.

关键词： SVG visualizing Database spatial indexing system design patterns

作者: Ma Jie Li Yan Dong Xuemin

作者单位: Computer School,South China Normal University,Guangzhou,China,510631 Computer School,South China Normal University,Guangzhou,China,510631;Spatial Information Research Ce

会议类型: 国际会议

会议名称: 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)

会议地点: 广州

会议语种:英文

在线出版日期: 2008-06-28（万方平台首次上网日期，不代表论文的发表时间）