基于AutoCAD的地形图数据新旧标准转换方法的研究

The Reseach Topographic Map Data Conversion Method Between the old and New Standard Based on AutoCAD

地形图数据标准发生变化时,如果由人工来完成新旧标准间地形图数据的转换难度很大,且容易出错,应该考虑采用程序的手段实现自动化转换。本文阐述了在AutoCAD环境下,通过定制转换规则,编写程序实现将旧标准的地形图数据转换成符合国家新标准要求的数据,提高了地形图转换的效率。同时,本文引入了SQLite数据库技术来管理转换规则库及要素编码信息,增强了程序的可维护性。

When topographic map data standards has changed,if done by hand between the old and new standards for data conversion is very difficult and error-prone,we should consider means to automate conversion process.This paper describes in AutoCAD environment,through the custom conversion rules,write programs achieve the old standard topographic map data converted into new data of matching national new standards,that will improve work efficiency.At the same time,the paper introduces the SQLite database technology to manage the library of transformation rules and feature code information,enhanced the program＇s maintainability.