摘要
随着地质空间数据量呈几何级速度增长,三维地质信息系统深入应用和地学数据可视化对海量地质空间数据的高效存储需求更加迫切。分析地质数据特征,其多类型、多尺度以及空间分布特征是设计地质空间数据库结构的决定性因素。基于此提出顾及地质实体多类型多尺度特征的一体化对象-关系型数据库存储模型。模型采用分层、分区、分类的管理策略和要素扩展管理技术实现海量地质空间数据的一体化存储。中国地质大学的QuantyView三维地学软件平台已经基于该存储模型实现了海量空间数据的存储、调度和可视化,证明了该模型对于海量空间数据存储具有实际应用的有效性。
With the geometric progression growth of geo-spatial quantity, the efficient storage of massive geo-spatial data becomes more ur- gent to 3D geological information system development and geo-scientific data visualization. The analysis of the geological features concludes that its multi-type, multi-scale and spatial distribution characteristics are decisive factors for geo-spatial database structure design. Based on the above, while considering the muhi-type and multi-scale characteristics of geological entities, the paper presents the integrative object-rela- tional database storage model. The model adopts hierarchical, partitioned and classified organizational methods and feature expanding manage- ment techniques to realize the integrative storage of the massive geo-spatial data. On the basis the storage model, the 3D geo-scientific software called QuantyView has realized the storage, schedule and visualization for massive geo-spatial data, which indicates that the model is effective at practical application with massive spatial data storage.
出处
《计算机应用与软件》
CSCD
北大核心
2014年第7期36-39,共4页
Computer Applications and Software
基金
江西省教育厅科技计划项目(GJJ12398
GJJ12399)
东华理工大学博士基金项目(DHBK201101
DHBK201102)
关键词
地质空间
空间数据库
存储模型
要素扩展管理
Geological space
Spatial database
Storage model
Feature expanding management
