不同基准下坐标转换的方法及注意事项

摘要

不同基准的坐标转换，如果其转换范围较大，都是在空间直角坐标系下进行的；如果其坐标的表示形式是大地坐标或高斯平面坐标，则需要首先将其转换成空间直角坐标，然后才能依据转换参数及模型进行转换。本文以一个实例，叙述了不同基准坐标转换的具体过程。%Coordinate transformations under different datum ellipsoid, if the conversion range widely, are based on the space rectangular coordinates; if surveying coordinates are in the form of geodetic coordinate or Gauss plane coordinates, it need to be firstly converted into a rectangular space coordinates, and then to be converted on the basis of transformation parameters and model. Through an example, the paper describes the specific process of different reference coordinate.