Because there are many coordinates system in the long route engineering,which bring a lot of inconveniences for design and construction.
而长距离的线路勘测工程中不可避免地会出现多个坐标系,这也给设计和施工带来诸多不便。
Combined with the complex features of GPS coordinates calculation on gyrated line points on expressway and city overpass ramp,it introduces the calculating methods of gyrated line s transformation to alleviated curve.
结合高速公路和城市立交匝道上回旋线段任意点的GPS坐标计算的复杂性,详细地介绍了回旋线段转化为缓和曲线的计算方法,并通过工程实例进行了说明,以达到快速准确地计算回旋线段任意点的GPS坐标的目的。