himap二次开发GPS地图导航代码.包括绘制点,线,面,计算距离,监控,导航,-himap secondary development of map navigation code.

GPS Direction Tool This program reads the cordination from a serial GPS device and parses all the GPGGA, GPRMC sentences. 1- It extracts the correct location on the map. 2- User can select a destination on the map. 3- A very nice gauge,

gps map using google earth