由任意一点的坐标计算相应的中桩坐标的算法

The Algorithm for Determining the Coordinate of A Corresponding Central Stake Based on the Coordinate of An arbitrary Point

文中介绍一种根据不在道路中线上任一点的坐标，计算相应的中桩里程桩号、中桩坐标、该点至中桩的距离（距中）的算法．这一算法简明实用，其中有关缓和曲线段的算法收敛速度较快；具有一定编程能力的人据此可以在袖珍计算机或可编程计算器上编成有关的程序，以满足有关工作之需．文中给出了应用实例．

A algorithm is introduced in the paper for the determination of the coordinate of a corresponding central stake based on the coordinate of an arbitrary point not on the central line of a road. The algorithm proves to be less complicate and of effective for determining the mileage number of the central stake and the distance of the stake away form the arbitrary point. and especially for the rapid,determination of the transit curves What's more. a related program can be easily developed on a pocket computer or a programmable calculator for meeting the requirements in road survey. Typical cases of its practical applications arc cited .