城镇地籍数据库的空间数据结构及其算法

Spatial Datastructures and Al gorithms for Urban Cadastral Databases

对栅格结构、点拓扑式矢量结构和链拓扑式矢量结构等各种类型的空间数据结构进行了研讨比较，指出链拓扑式矢量结构最适宜城镇地籍数据库．以此为基础设计了一组空间数据存取和更新的算法。研究结果对于城镇地籍的初始建立和变更处理都是切实有效的。

ompared with raster and point-topology-based vector datastructures,a chain-topology-based vector datastructure is found to be the most suitable spatial datastructure to urban cadastral databases. A set of algorithms of spatial access and renewal is developed and applied to a practical project.