FME道路实体连通性检测算法

针对测绘成果中入库数据道路实体连通性检测方面的问题,基于FME平台设计开发了一种道路实体连通性检测算法。该算法充分考虑了重复路段的情形,既适用于单线形结构的常规道路实体,也适用于三岔路结构的非常规道路实体,并且实现了对各种不同类型道路实体不连通错误的精细化检测。利用模拟数据和地理国情普查成果数据验证了算法的正确性与鲁棒性。所提算法为入库道路数据的连通性质量检查与修改提供了有力的工具,为数据库建设中道路数据的实体化编码和网络构建等数据深加工处理奠定了坚实的基础。

An algorithm of road object connectivity checking based on FME

In order to deal with the problem of road object connectivity checking in surveying and mapping products,an algorithm of road object connectivity checking is proposed and implemented based on FME platform,which takes duplicate road segments into account,applies to both conventional single track structure and unconventional fork structure and realizes a specific detection of different disconnection error types.Experiments with both simulated data and geographical conditions survey products demonstrate that the algorithm is correct and robust.The algorithm provides a powerful tool for connectivity quality inspection and modification of road object in the data to put in storage and lays a solid foundation for further processes such as object coding and network modeling in the construction of databases.