国家坐标系与基于工程投影面的地方坐标系坐标变换通用计算模型研究

The Research of the Model in Coordinate Conversion Between National Coordinate System and Ellipsoid Constructing Based Local Coordinate System

依据参考椭球的构造原理,在对目前常用转换计算方法分析比较的基础上,通过选取不同的参数和变换模型构造出了9种不同的任意中央子午线任意投影面之间坐标变换计算方法,设计了相应的通用计算软件,并应用于某城市道路实测数据的分析计算。

In this paper, according to the principle of constructing a reference ellipsoid, the general methods of coordinate conversion are compared and analyzed, nine models that coordinate conversion can be made between any middle meridian and any projection plane are proposed, At last, the corresponding software is designed and applied in the projection of city road line surveying.