在地质勘探现场工作中经常会遇到地理坐标和投影坐标转换的问题。本文通过对地理坐标和投影坐标原理的简要分析,根据高斯—克吕格投影平面下投影坐标转换成地理坐标的高斯反算公式,分析算法原理、设计算法流程,编制程序,并用MAPGIS软件进行比对分析,发现该程序能较好、有效地满足实际应用需求。% It is frequently encountered on the spot of geological exploration to make changes between geographic coordi-nate and projection coordinates. Based on brief analysis of the principles of geographic and projection coordinates, the Gauss inversion formula that transforms Gauss-Krueger projection coordinates into geographic coordinates, this paper analyzed the principle of algorithm, designed process of algorithm and made programming, conducted comparison anal-ysis using MAPGIS software, found the program capable of meeting practical demand.
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