检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]南京大学GIS与遥感研究所,南京210093
出 处:《中国图象图形学报(A辑)》2000年第3期179-185,共7页Journal of Image and Graphics
基 金:江苏省青年科技基金资助项目!( BQ980 2 6 );国家自然科学基金资助项目 !( 49870 16 2 )
摘 要:空间数据引擎是近年来发展起来的采用大型 RDBMS管理空间数据的新技术 ,它为 GIS海量数据的组织与共享提供了极大的方便 .该文从 GIS现状和空间数据引擎的原理及相关技术与标准出发 ,提出了基于空间数据引擎的企业化 GIS构建模式和构建步骤 ,指出了用空间数据引擎建立企业化 GIS的优点和不足 ,并借鉴 Internet GIS中的数据获取部件来弥补它互操作的不足 ,最后对当今与空间数据引擎有关的Spatial Data Engine, as a new advanced technology, hasn't been cared for much interiorly. Until recently, relational DBMSs were not adept in handling complex data types such as spatial information. However, DBMS vendors such as Oracle have moved quickly to accommodate complex data type. At the same time, the GIS industry has been moving from propriety, PC based storage techniques towards open standards and advanced DBMS technology. The two converging streams urges the emerging of Spatial Data Engine. With Spatial Data Engine, spatial data and other data are integrated into relation DBMS. It can avoid format transform and integrate spatial and attribute info tightly. Furthermore, it may take advantage of relational DBMS: data integrity, data consistency, multi users access and interoperability among systems, etc. So, spatially enabled RDBMS makes info sharing more easily and people can develop large scale GIS projects such as Enterprise GIS. As a result, more and more companies and organizations will use GIS technology. This paper summarizes the principle of Spatial Data Engine and the correlative technology and standards, then presents the mode and steps while constructing Enterprise GIS based on Spatial Data Engine, at last reflects on some issues on current GIS development about Spatial Data Engine.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.28