| Preprocessing of Spatial Query in Distributed GIS |
| |
| 作者姓名： | Shengsheng Wang Dayou Liu Jie Liu |
| |
| 作者单位： | College of Computer Science and Technology, Key Laboratory of Symbolic Computing and Knowledge Engineering of Ministry of Education, Jilin University, Changchun 130012, China |
| |
| 摘 要： |
|
| 关 键 词： | 地理信息系统 数据处理 操作系统 信息共享 |
Preprocessing of Spatial Query in Distributed GIS |
| |
| Shengsheng Wang Dayou Liu Jie Liu.Preprocessing of Spatial Query in Distributed GIS[J].Journal of Communication and Computer,2005,2(5):1-5. |
| |
| Abstract: | This paper focuses on spatial query optimization in distributed GIS. A new qualitative spatial relation model and its consistency problem solution which is composed of topology, direction, distance and size, are proposed. Research integrating the four aspects has not appeared before. A new method to deduce the constraints of spatial query is given, so it saves the query process time in distributed GIS. Finally, the methods and theories are applied to a distributed GIS project, and the experiment result is satisfactory. |
| |
| Keywords: | Distributed GIS Spatial Query Optimization Constraints |
| 本文献已被 维普 等数据库收录！ |
|
