对于实现三维漫游、空间信息查询和洪水淹没分析具有重要的作用。
And it is important to realize 3-d browsing, space information query and submerging flood analysis.
空间信息查询与检索:包括属性查图、图查属性、统计分析、DEM查询等。
Spatial information inquiry and index: which contains inquire map information from attribute information, inquire attribute information from map information, statistical analysis, DEM inquiry, etc.
清单7显示了一个相似的查询,但是这次也使用一些与服务相关的信息,即希望得到的命名空间(Namespace)名字。
Listing 7 shows a similar query but this time some of the service-related information is also used, namely the desired namespace name.
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