摘要
在GPS RTK道路中线测设时,常遇到下一个点在何处的问题,做法是随测一个点的坐标,反算出该点趋向道路中线的方向与垂距,在行进之中,实现导向与导距.道路路线是由不同线元(直线、圆曲线、缓和曲线)组合而成的,随测点与哪个(些)线元相关.导出了自行查找关联线元的方法,并侧重研究了点对缓和曲线反算问题的算法.本算法已在掌上电脑上以程序实现,最后给出应用软件计算操作实例.
The next point to be staked is a common issue in the GPS RTK staking. It is proposed in this paper that the coordinate of a certain point be used to determine its direction and perpendicular distance from the road center. Horizontal alignment of a road is defined by polyline （straight line, circular curve, transition curve）. The process of finding the relative point（s） is studied, with an emphasis on the algorithm of inverse point to transition curve. Finally, the algorithm is introduced to polyline by application software on pocket PC.
出处
《昆明理工大学学报（理工版）》
北大核心
2009年第2期40-44,共5页
Journal of Kunming University of Science and Technology(Natural Science Edition)
