摘要
当前2000国家大地坐标系在全国范围内广泛开展使用,而大多数测绘成果均基于1954年北京坐标系和1980西安坐标系,急需快速而高效地转换至2000国家大地坐标系以满足城市规划建设的需要。为此,实现了基于四参数模型和七参数模型的,支持1954年北京坐标系、1980西安坐标系、1984世界大地坐标系(WGS84)、2000国家大地坐标系(CGCS2000)和地方独立坐标系任意坐标系之间互相转换的在线坐标转换系统。本系统支持处理SHP(Shapefile)、DWG和DXF格式的矢量数据,IMG和TIF格式的栅格数据,MDB和GDB格式的数据库数据以及Excel格式的文本数据。
Currently,the China Geodetic Coordinate System 2000 is widely used throughout the country,and most of the surveying and mapping results are based on the Beijing Geodetic Coordinate System 1954 and the Xi'an Geodetic Coordinate System 1980.There is an urgent need to quickly and efficiently convert to the China Geodetic Coordinate System 2000 to meet the urban planning and construction requirements.To this end,the four-parameter model and the seven-parameter model were implemented,supporting the Beijing Geodetic Coordinate System 1954,the Xi'an Geodetic Coordinate System 1980,the World Geodetic System of 1984(WGS84),the China Geodetic Coordinate System 2000(CGCS2000),and any local independent coordinate system.An online graphics conversion system that converts coordinate systems to each other.The system supports vector data in SHP(Shapefile),DWG and DXF formats,raster data in IMG and TIF formats,database data in MDB and GDB formats,and text data in Excel format.The system runs stably.
作者
钱晓山
杨志敏
吴继忠
Qian Xiaoshan;Yang Zhimin;Wu Jizhong(Nanjing Tech University,Nanjing 211800,China;Wuhan Geomatics Institute,Wuhan 430022,China)
出处
《城市勘测》
2020年第3期130-133,共4页
Urban Geotechnical Investigation & Surveying
基金
国家自然科学基金(41504024)。
关键词
四参数模型
七参数模型
坐标转换
four-parameter model
seven-parameter model
coordinate conversion
