基于nasa的worldwind的3D导航界面的设定画线程序，利用鼠标点击，显示规划的路线-Nasa' s worldwind-based 3D navigation interface of the set procedures for drawing a line using the mouse click, indicating the route planning

DEM、影像处理工具，分影像金字塔，投影转换，worldwind工具-DEM, image processing tools, sub-image pyramid, projection conversion, worldwind tool

Java程序，利用WorldWind工具包进行3D地卫系统仿真，可以实现地球自转，卫星绕地球飞行，卫星轨道显示等。-Java program, the use of WorldWind toolkit for 3D defense system simulation, can achieve the Earth s rotation, satellite orbit around the Earth, satellite orbit display.