坐标方位角的方算，方便了要计算的坐标正反算工作-Azimuth coordinates of the operator side and make it easier to calculate the coordinates of the positive and negative balance of work

进行经纬度点坐标的距离计算程序，用C++编写的，基于MFC界面编程的程序-Latitude and longitude coordinates from the calculation procedure, the with C++ write MFC interface-based programming procedures

工程测量中道路测设时，计算道路放样点坐标时的VC++程序，专业应用软件(版权所属：tang jian bo, CSU)-The engineering survey road survey and design, calculate the the road stakeout point coordinates VC++ program, professional applications (copyright belongs: tang jian bo, CSU)

填写坐标信息，调用地磁模型WMM2015，计算当前位置磁场值-填写坐标信息，调用地磁模型WMM2015，计算当前位置磁场值 填写坐标信息，调用地磁模型WMM2015，计算当前位置磁场值 Fill in the coordinate information, call the geomagnetic model WMM2015, calculate the current position of the magnetic field value