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讨论了三维地理信息系统(GIS)的空间数据结构,分析了常用的几种三维空间数据结构.针对矿区井下复杂的开采条件,提出了一种三维拓扑矢量结构,并指出三维可视化实现的必要性.
The spatial data structure of three-dimensional geographic information system (GIS) is discussed and several commonly used three-dimensional spatial data structures are analyzed.Aiming at the complicated mining conditions in underground mine, a three-dimensional topological vector structure is proposed and the necessity of three-dimensional visualization is pointed out .