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在空间数据的更新过程中,需要利用多种数据源对现有数据进行更新,这样可能会导致在获得的空间数据中出现重复记录。利用计算机自动对这些重复记录进行检查处理,将会极大地降低数据生产者的工作量。本文根据在数字制图系统研制过程中所遇到的此类问题,提出了对重复空间数据进行检查与处理的方法,并在所研制的数字制图系统中得到了应用。

During the course of updating of spatial data,we need to use kinds of data sources,which may lead to duplicate records.If we use computer to check and dispose them automatically,it will reduce the workload greatly.According to the problems occurred in the design and implementation of the digital mapping system,this paper proposes a cleaning method to check and process duplicate records of spatial data.This method has been applied in a practical system.