从Google Earth中提取高程，形成txt文本，可从经纬度范围提取。-From Google Earth to extract elevation, to form a txt text can be extracted from the latitude and longitude range.

一个处理经纬度转换处理的程序，可用在坐标和GPS信号处理方面，同时提供一种保存坐标的内存和XMl文档样例　vc2003-I have seen many articles here at CodeProject about coordinates and GPS signal handling, like "Writing your own GPS Applications" and "Distance between locations using latitude and longitude

在ASP.NET中调用Google maps 时，点击这一图标可以显示其经纬度。-when you click icon on google maps,the map will show the longitude and latitude of the icon.

Geo映射算法，将经纬度坐标系转换为屏幕坐标系上。-GeoReference GPS To Screen

Winform调用百度地图，实现地图加载，地物查询，获取经纬度-Winform using baidumap to load the map and query places ,and show the latitude and longitude