The system was provided with function of workspace, data and map management, object operation, spatial query and analysis in the environment of GIS.
该系统具有GIS工作空间管理功能、数据管理功能、地图管理功能、对象操作功能、查询及空间分析功能;
The design of spatial data accessing engine is the key for object RDMBS to memory and query spatial data.
为使对象关系数据库更方便存储和查询空间数据,空间数据访问引擎的设计是关键。
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