高度计

LanzhouGDG社区黑客马拉松获奖作品。高度计是一款由App Inventor生成的有趣、实用的软件。它可以通过所测物与水平面、手机平面形成的夹角，利用三角函数，远、近距离测量物体的高度，并且伴随着动听的音乐。 LanzhouGDG hacker community marathon winners. Altimeter is a generated by the App Inventor interesting, useful software. It can be measured by the angle between the object and the horizontal plane, the plane formed by phone using trigonometric functions, far, close to measure the height of the object, and accompanied by the sounds of music.