墨卡托海图与高斯公里网图坐标转换方法

Method of coordination transformation between Mercator chart and Gauss kilometre map

海上活动使用的墨卡托海图和陆地测量使用的高斯公里网图由于投影的性质不同,因此具有不同的坐标系统,有时为了某些需要需将两种坐标进行相互转换。系统论述了墨卡托海图和高斯公里网图的投影原理和坐标特点,探讨了两种坐标之间进行转换的数学模型和在计算机上实现的算法及运算步骤。在此基础上完成的实用坐标转换程序实现了快速、准确实现两种坐标间转换的功能。

The Mercator chart, used in sea action, and the Gauss kilometre net map, used in land measure, have different projection characters. So the coordinates system is not the same. Some time,it has to transform the coordinates between two kinds of system for some need. This paper introduces the projection principles and coordinates characteristics of two kinds of system, probes into the model of coordinates transformation and the algorithm and the programme applied in computer. It is indicated that the programme can transform the coordinates quickly and accurately.