道路中线、边桩坐标自动计算，只要输入现有数据，即可得到你想要任一点的坐标，方便现场施工测量(The coordinates of the centerline and side piles of the road can be calculated automatically. As long as the input data is available, the coordinates of any point you want are obtained, so that the field construction survey can be conveniently carried out)