标准分幅数字线划图的坐标转换  

Method on map coordinate conversion of digital line graph

作　　者：来丽芳[1] 陈桂珍[1] 余华芬 

机构地区：[1]浙江建设职业技术学院城市建设工程系,浙江杭州311231 [2]浙江省第二测绘院,浙江杭州310012

出　　处：《浙江工业大学学报》2012年第3期313-316,共4页Journal of Zhejiang University of Technology

基　　金：住房和城乡建设部科学技术项目(2011-K3-35)

摘　　要：数字线划图(DLG)数据坐标转换是测绘中较重要的一项工作.笔者在扼要介绍了DLG数据坐标转至2000国家大地坐标系试生产研究的背景后,分析了标准分幅DLG数据坐标转换分幅的作业流程及技术方法,并着重对转换分幅过程中较易遇到的一些问题进行了说明.转换技术方法在2011年度浙江省测绘部门的基础测绘生产的多个项目中得到了应用,结果表明:该转换方法满足采用2000国家大地坐标系时DLG坐标转换分幅生产的技术要求,转换分幅效率大大提高,为浙江省标准分幅DLG数据批量生产采用2000国家大地坐标系奠定了良好的基础.Map coordinate conversion of Digital Line Graph（DLG） is very important in survey field. The paper comprehensively presents the workflow and technical method of framing of National Standard Division Rangers DLG in map coordinate conversion, and specially introduce key problems occurred during framing of DLG after concisely reviews of background on map coordinate conversion from DLG＇s coordinate to China Geodetic Coordinate System 2000. The technical method of conversion has been applied to several projects of the foundation of surveying and mapping of Zhejiang province during 2011. The results indicated that the technical method of conversion met the technical requirements of map coordinate conversion from DLG＇s coordinate to China Geodetic Coordinate System 2000, and conversion efficiency was improved. The conversion method established a good foundation by using mass production of map coordinate conversion.

关 键 词：数字线划图 坐标转换 2000国家大地坐标系 标准分幅 

分 类 号：P226.3[天文地球—大地测量学与测量工程]