用于测量与地图制图的高斯投影转换，提供了北京54、全国80、WGS84三个坐标系下的正算、反算。输出结果精确到小数点后7位。-for measuring and mapping the Gauss projection conversion, the Beijing 54, 80, 3 WGS84 coordinates the count is, anti-counting. Output accurate to seven deci

用于测量与地图制图的高斯投影转换，提供了北京54、全国80、WGS84三个坐标系下的正算、反算。输出结果精确到小数点后7位。-for measuring and mapping the Gauss projection conversion, the Beijing 54, 80, 3 WGS84 coordinates the count is, anti-counting. Output accurate to seven deci

高斯投影变换的VC源码，能够完成高斯变换，可以选择BJ54坐标或者西安80坐标-Gauss projection transform VC source, able to complete the Gaussian transform, or you can choose BJ54 coordinate Xi' an 80 coordinate