通用地理坐标转换类设计与实现

Design and implementation of general geographic coordinates transformation class

为了解决地图制图中不同坐标系之间的相互转换的问题,采用构建通用地理坐标转换类方法,实现常用大地坐标系和平面投影坐标系之间在相同或不同参考椭球参数下的相互转换。介绍了大地坐标系及投影坐标系,对实现大地坐标系、投影坐标系的相互转换方法作了详细的论述,并探讨了通用地理坐标转换类设计和实现的优化方法,通过实际数据验证了该地理坐标转换类在实际的应用中是切实可行的。

To solve the problems of difference geographic coordinates transformation, the paper adopts the methods of establishing general coordinate transformation class, and implements the coordinate transformation. The paper introduces the geodetic coordinate system and the projected coordinate system; it elaborates the transforming ways between the geodetic coordinate system and the projected coordinate system. Besides, the paper also discusses the ways of optimizing transformation, verifies the results through practical data.