Researching on the Methods of Censoring the Underwater Topographic Vector Data Based on GIS
Haifeng Qian · Modern Surveying and Mapping · 2011
Taking the underwater topographic vector data of the Yangtze river in Nanjing as an example,this article examined the quality of vector data,analyzed topographic error — the main factor that affected the data quality and designed the algorithm for modifying a batch of topographic errors.This software is designed for examining the attribute of elevation,which improves the efficiency of examining the data quality and guarantees the quality of digitized underwater vector data.