MAPGIS中北京54坐标系与西安80坐标系坐标转换的研究

Transformation of Beijing 54 Coordinate System and Xi'an 80 Coordinate System in MAPGIS

通过研究椭球参数之间的转换来解决北京54坐标系和西安80坐标系之间的转换。利用MAPGIS中的投影换代功能,在常用的几种数学模型中选择使用七参数布尔莎模型提高了转换的精度,详细描述了转换的操作过程。

By studying the transition between ellipsoid parameters to resolve the conversion of Beijing 54 coordinate system and Xi＇an 80 coordinate system.Using MAPGIS replacement functions and seven parameters in Bursa model commonly used mathematical models improves the accuracy of the conversion,detailed description of the conversion process.