通过Mif文件（mapinfo的文件格式）在自己的地图窗口中创建点状对象-through Mif (MapInfo file format) in the Map window to create point target

前方交会测量程序，给出目标的两个点坐标和方向角，通过测量算法求出目标交会的第三个点，广泛应用在大地测量等领域-Intersection measurement procedure, two points are given target coordinates and orientation, by measuring the algorithm the objective point of intersection of the third