object oriented gis semantic model 面向对象gis语义模型
GIS Semantic Transformation GIS语义转换
gis semantic data model gis语义数据模型
gis data semantic level gis数据语义
semantic gis web services 语义gisweb服务
The GIS semantic data modeling approach has been used as a tool to design the needed conceptual model.
采用语义数据模型的方法，提出利用地理特征这一概念作为建模的基本概念。
Supported by current large database platform and communication mechanism, we construct a fairly-new distributed and generalized SDE model by GIS language of semantic object.
在通用大型数据库平台与通信机制支持下，用语义对象模式的GIS语言构建了一个全新的分布式广义sde模型。
In this paper, after analysis of the spatial and temporal properties of GIS, a semantic definition of spatiotemporal topological relationships has been suggested.
本文在分析GIS的时空特性后，给出了一个语义层时空拓扑关系定义。
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