【摘要】 介绍了WEBGIS的基本结构和工作原理 ,分析并提出了基于WEBGIS的城市基础设施管理信息系统结构和功能。以ORACLESPATIAL为例分析了空间对象模型 ,阐述了空间数据访问的基本模式及系统的开发方法。更多还原

【Abstract】 Introduced hereby are the baoic structure and operation principle of WEB GIS, with analysis of the general structure and functions of the City Infrastructure Management Information System on the basis thereof. In addition, the spatial object is studied with ORACLE SPATIAL as an example, including the basic modes for access to spatial data. The way of developing such a system is also provided.更多还原