运行程序前请先把\"地图\"文件夹中的地图集和图层拷到mapX4.0的maps文件夹中 刚开始的登录界面里 用户名和密码都为空,直接点击 \"确认\" 即可-post before running the program the "map" folder and the Atlas layer of metadata mapX4.0 maps folder at the beginning Lane user interface login names and pass

从GPS接收机里提取数据，在C++builder中配合地图实现轨迹重现，并显示鼠标所在位置的经纬度-Lane from the GPS receiver to extract data, in which C builder with the locus maps recreated, and display the location of the mouse coordinates