【摘要】 全球定位系统(GPS)在提供精确定位和数据更新方面具有重要价值。在各种"3S"技术中应用GPS采集坐标数据也日趋广泛,所以实现WGS-84和BJ-54坐标的转换有着重要意义。本文着重介绍WGS-84和BJ-54坐标及其空间转换思想和模型,通过实际算例,探讨七参数转换方法、转换模型、转换精度以及基于VisualBasic语言的计算机实现。更多还原

【Abstract】 The global positioning system has very important value at many aspects,especially in providing precise positioning and data renewal.Thus in different kinds of "3S" technology applications using GPS to collect data has become widely.This paper introduces the coordinate system WGS-84 and BJ-54,and introduces the ideas of spatial transformation and the model of transformation.This paper also introduces the method and the model of transformation of seven-parameter.At last,this paper discusses the program how to come true by using Visual Basic.更多还原