非完整缓和曲线点的既有坐标计算方法探讨  

The Method of Calculating the Existing Coordinates about the Points in Incomplete Easement Curve

作　　者：胡菊英[1] 陈文贵 朱良文 

机构地区：[1]兰州交通大学测绘与地理信息学院,甘肃兰州730070 [2]铁道部甘肃省第一勘测设计院兰州分院,甘肃兰州730070 [3]甘肃省核工业地质局,甘肃兰州730070

出　　处：《矿山测量》2013年第6期70-72,8,共3页Mine Surveying

摘　　要：文中针对设置非完整缓和曲线后线路中桩点坐标计算的实际要求,从回旋线的基本性质出发,将非完整缓和曲线看成完整缓和曲线的一部分,根据起算数据先求出相同变更率的完整缓和曲线原点的坐标及原点的切线方向,再按完整缓和曲线点既有坐标的计算方法,可得到非完整缓和曲线点的坐标,该方法使得非完整缓和曲线点的坐标计算简单且有规律。The author considers the incomplete transition curve as a part of the complete transition curve against at the actual requirements of the pile points coordinate calculation of setting the incomplete transition curve beginning with the basic nature of the cyclotron line,calculates the coordinates and the tangent direction of the transition curve origin with the same change rate according to the initial data,and then obtains the coordinates of the non-complete transition curve points using the calculation method of the existing coordinates.It is simple and regularity with the coordinate calculation of the non- complete transition curve points.

关 键 词：非完整缓和曲线 完整缓和曲线 缓和曲线变更率 缓和曲线原点 

分 类 号：TB22[天文地球—大地测量学与测量工程]