基于多项式拟合模型的规划与地形图数据坐标转换方法研究与实现  

Research and Implementation of Planning and Topographic Map Data Coordinate Transformation Method Based on Polynomial Fitting Model

作　　者：申学林 曹伟超 申坚 SHEN Xuelin;CAO Weichao;SHEN Jian(The Sixth Topographic Surveying Team,MNR,Chengdu 610500,China;Sichuan Yaoxin Surveying and Mapping Co.,Ltd.,Chengdu 610500,China)

机构地区：[1]自然资源部第六地形测量队,四川成都610500 [2]四川遥信测绘有限公司,四川成都610500

出　　处：《测绘与空间地理信息》2023年第2期186-189,192,共5页Geomatics & Spatial Information Technology

摘　　要：针对地方坐标系与国家坐标系之间中央子午线经差较大可能导致其坐标转换时残差偏大的情况,本文从坐标模型选择、参数计算、图形数据转换等方面进行技术方法研究,并基于VBA结合Visual LISP开发了坐标转软件,实现AutoCad图形数据批量、自动、快速坐标转换处理,大幅提高了生产效率。In view of the large longitude difference of the central meridian between the local coordinate system and the national coordinate system,which may lead to large residual error during coordinate transformation.This paper studies the technical methods from the aspects of coordinate model selection,parameter calculation and graph data transformation,and develops the coordinate transformation software based on VBA and Visual LISP to realize the batch,automatic and fast coordinate transformation processing of AutoCad graph data,greatly improves production efficiency.

关 键 词：投影变形 坐标转换 多项式拟合法 图元 

分 类 号：P282.[天文地球—地图制图学与地理信息工程]