利用Android手机的磁力感应器和OpenGL开发的3D罗盘。可以学到感应器数据的获取和OpenGL图形绘制的内容。-Android phones using magnetic sensors and the development of OpenGL 3D compass. Can learn a sensor data acquisition and OpenGL graphics rendering content.

一个完整的安卓指南针源码，直接导入eclipse即可运行，是很好的安卓开发学习资料-A complete Andrews Compass source directly into the eclipse to run, Andrews development is a good learning materials

调用安卓开发相关的API利用传感器可以实现一个指南针的效果-Call the Android development related API use sensor can achieve a compass effect