摘要
目前全国多地都在积极推进新型基础测绘试点工作,其中,通过存量地形图数据生产地理实体是一项重要工作内容。本文介绍了地形图数据转换为基础地理实体的原理与主要流程,提出了一种从现有的DWG图和地形图数据库自动化生产地理实体的方法;基于iData数据工厂软件进行了实际数据的生产试验,验证了从地形图提取地理实体的可行性;总结了生产过程中的数据处理步骤和方法,统计了整个过程的自动化效率等详细信息,并分析了影响自动化效率的因素和提高自动化效率的方法,对从存量地形图数据生产地理实体的工作具有一定参考意义。
Presently,new fundamental surveying and mapping are carrying out around the country.Among them,one of the most significant process is producing geo-entities from existing topographic map.This paper introduces the principle and process of transforming topographic maps into geo-entities,and proposes a method to automatically produce geo-entities from existing DWG data and topographic map database.We are carrying out data production experiments on iData software to verify the feasibility of this process.This paper summarizes the requirements of processing methods and statistics the automation efficiency of the whole process.Futhermore,we analyze the factors which may affect the efficiency of automation and operating few methods to improve the efficiency of automation.This paper has certain reference significance for producing geo-entities from the existing topographic maps.
作者
邹磊
杨鹏
曹文涛
谢刚生
ZOU Lei;YNAG Peng;CAO Wentao;XIE Gangsheng(SOUTHGIS Technology Company,Guangzhou 510665,China;Wuhan Geomatics Institute,Wuhan 430022,China)
出处
《测绘通报》
CSCD
北大核心
2022年第12期147-152,共6页
Bulletin of Surveying and Mapping
