后方交会实现地面坐标点计算，通过读取TXT文件将数据导入，并将计算结果输入，快速并且很准确，值得初学者学习-Resection achieve ground coordinates calculated by reading the data into a TXT file and enter the result, fast and very accurate, worth learning for beginners

利用IGS提供的广播星历计算GPS卫星坐标，经度可以达到1m，文件输出计算结果-Using IGS provides GPS satellites broadcast ephemeris to calculate the coordinates, longitude can reach 1m, file output results

MFC编写的摄影测量学航空摄影航带设计程序，计算航摄基线长度，计算曝光时间，根据航带设计要求，计算摄站点坐标-MFC prepared photogrammetry aerial photography with aircraft design program that calculates aerial baseline length, exposure time is calculated according to aircraft with the design requirements,