浅析GIS空间数据模型

his paper makes analysis and evaluation about current GIS spatial data models.Through doing research on expression and manipulation of spatial data, it points out that the shortcomings of the topological data model, entity-oriented data model and object-oriented data model, and draws the conclusion that either topological data model or entity-oriented data model can be combined with object-oriented data model, or three data models can integrate into one data model in order to make up or reduce the defect among each other under different circumstances.