摘要
2000国家大地坐标系启用后,城市原有的测绘成果需完成向2000国家大地坐标系的转换。针对DGN格式的图形文件开发了一套转换软件;采用格网改正法,结合武汉市系列比例尺DGN图形数据转换试验,分析比较了3种格网改正数方法的转换精度;总结了各种比例尺适宜的转换方法,对各地参心坐标系成果向CGCS2000的坐标系统转换具有一定的借鉴作用。
After China Geodetic Coordinate System 2000 （CGCS2000） being adopted as a new geocentric coordinate system of our country, the coordinates of surveying and mapping products under Reference-Ellipsoid-Centric Coordinate System are needed to be transformed. Grid was used in coordinate transformation with DGN files. Three methods of computation of grid were adopted to transform large scale and small scale topographical maps of Wuhan. After comparing the precision of these methods, the proposal of guiding maps transformation of the exist products of surving and mapping to CGCS2000 was put forward.
出处
《测绘科学技术学报》
北大核心
2012年第4期249-253,共5页
Journal of Geomatics Science and Technology
基金
精密工程与工业测量国家测绘地理信息局重点实验室开放基金项目()
作者简介
白洁（1982-），女，湖北武汉人，工程师，硕士，主要从事大地测量及GPS数据处理和应用研究。
