摘要
阐述了应用椭球变换建立区域独立坐标系的方法。以某山区道路为例,分别运用椭球膨胀法、椭球平移法、椭球变形法建立区域独立坐标系,对这些方法建立的独立坐标系的投影变形值进行了分析,比较了3种方法的特点。
This paper discussed the method of establishing local independent coordinate system through Ellipsoid transformation. Taking a road in mountain area as an example,it established local independent coordinate system using Ellipsoid Expanding Model,Ellipsoid Shift Model, and Ellipsoid Distortion Model. Then it analyzed the projection distortion value of the independent coordinate system by these different models. It also compared the characteristics of the three models.
出处
《测绘与空间地理信息》
2008年第1期168-169,共2页
Geomatics & Spatial Information Technology
关键词
椭球变换
区域独立坐标
投影变形
Ellipsoid transformation
local independent system
projection distortion
