网络环境中GIS图层信息的实时共享  

Real-Time Sharing of GIS Layer Information in Net Environment

作　　者：张鹏[1] 马琦[1] 聂镭[1] 

机构地区：[1]国防科学技术大学,ATR国家重点实验室,湖南长沙410073

出　　处：《兵工自动化》2005年第6期57-58,61,共3页Ordnance Industry Automation

摘　　要：将MapX与OracleSpatial结合,可实现网络环境GIS图层信息实时共享。共享应用程序采用C/S结构,通过OCI接口访问Oracle中图层信息。并在数据库中建立目标数据表和地图刷新数据表,以存储图元属性及图元属性发生变化时各节点的MapX控件数据集。其共享流程含标绘、修改、删除图元及图元信息异地同步。The real-time sharing of GIS layer information in the net environment is realized by the combination of MapX and Oracle Spatial. The C/S structure was adopted in sharing application and the layer information in Oracle was accessed by OCI interface. The object data table and map renovation data table was established in database to store primitive attribute and the MapX control＇s data set of each node. The sharing flow contains marking, modifying, deleting figure and synchronization of figure information.

关 键 词：GIS 图层信息 实时共享 网络环境 MAPX 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论]