摄影测量中的空间前方交会程序，采用的是matlab编写的点投影系数法和共线条件方程法，结合空间后方交会求解的双像外方位元素，可以进行待定点的三维坐标的求解。(The program of space intersection in photogrammetry, using the projection coefficient method and collinear equation method to prepare the MATLAB, combined with the space resection for double image exterior orientation elements, can be solved three dimensional coordinates.)