矢量地理信息成果批量坐标转换的实现与优化  

Realization and Optimization of Batch Coordinate Transformation of Vector Geo-information Data

作　　者：蒋莹[1] 李晓华[1] 安艳辉[1] JIANG Ying;LI Xiaohua;AN Yanhui(Jiangsu Provincial Institute of Surveying&Mapping Engineering,Nanjing 210013,China)

机构地区：[1]江苏省测绘工程院,江苏南京210013

出　　处：《测绘与空间地理信息》2022年第7期78-80,84,共4页Geomatics & Spatial Information Technology

基　　金：江苏省自然资源科技计划项目——江苏省自然资源CGCS2000转换技术流程改造(2020049)资助。

摘　　要：随着自然资源部的组建,国土、规划、林业、海洋等多部门地理信息成果的共建共享问题日益突出。为更好地履行自然资源“两统一”职责,需将相关存量数据统一转换为CGCS2000成果。本文首先介绍了常用的坐标转换参数模型和计算方法;然后,结合不同种类矢量地理信息数据特点,利用C#、AutoCAD和ArcEngine平台环境设计了批量坐标转换工具,并重点对AutoCAD和shp/MDB/GDB格式的矢量地理信息成果坐标转换实现的关键点进行描述;最后,结合AutoCAD自带函数对程序进行了优化,大幅提升了利用四参数转换模型的转换效率。论文的成果对今后自然资源不同类型存量数据的坐标转换工作具有一定的指导意义。With the establishment of the Ministry of Natural Resources,the problem of joint construction and sharing of geographic information results in land,planning,forestry,marine and other departments is becoming more and more serious.In order to further fulfill the responsibility of“two unifications of natural resources”,relevant stock data should be converted into the results of CGCS2000.This paper first introduces the commonly used coordinate transformation parameter model and calculation method.Then combined with the characteristics of different kinds of vector geographic information data,it uses C#,AutoCAD and ArcEngine platform environment to achieve coordinate batch conversion tools,and AutoCAD and SHP/MDB/GDB vector geographic information coordinate conversion key points are described.Finally,the program is optimized with AutoCAD function,which greatly improves the conversion efficiency of the four-parameter conversion model.The results have a certain guiding significance for the coordinate transformation of different types of natural resource stock data in the future.

关 键 词：CGCS2000 坐标转换 布尔莎模型 平面四参数 矢量成果 

分 类 号：P208[天文地球—地图制图学与地理信息工程]