【摘要】 在任何领域内的GIS软件开发中,对地图文件的读取、保存、放大、缩小、开窗放大、漫游等操作都需要进行频繁的经纬度与像素坐标转换计算。关于大地坐标与像素坐标的转换关系已经有多个学者研究过,但提供的算法非常复杂,本文通过对地球上小区域地图数据处理总结出一套简单可行的计算公式供读者参考。更多还原

【Abstract】 In the GIS software development in any fields,all the operations such as reading,saving,zooming in,zooming out,zooming in window,roaming need frequent conversion calculation among latitude,longitude coordinates and pixel coordinates.There are many researchers who have researched the conversion relation between geodetic coordinates and pixel coordinates,but the algorithms proposed are very complex.In this paper,through processing map data on a small region on the earth,a set of simple and practical formulas are summarized for readers’ reference.更多还原