WebGIS空间数据分布式缓存技术研究

基金项目: 国家863计划资助项目(2002AA131040)

详细信息

Research on Spatial Data Distributed Cache Technology in WebGIS

¹ State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing, Wuhan University,129 Luoyu Road,Wuhan 430079,China; ² National Geomatics Center of China,1 Baishengcun,Zizhuyuan,Beijing 100044,China

Funds: 国家863计划资助项目(2002AA131040)

摘要: 在分析常用的WebGIS空间数据缓存技术的基础之上,提出了一种WebGIS空间数据分布式缓存体系,并通过一个实例对分布式缓存系统的性能进行了分析。
- WebGIS /
- 分布式缓存 /
- 空间实体 /
- 缓存一致性
Abstract: According to the characteristics of WebGIS and spatial data,a distributed cache system is proposed in this paper.Some key problems needed to be resolved in the implementation of distributed cache system including cache spatial data selecting,distributed cache building,distributed cache management and cache consistency maintaining are discussed.Finally,the performance of this distributed cache system is analyzed with a case study.
- WebGIS /
- distributed cache /
- spatial entity /
- cache consistency