If the dip were in the opposite direction, it would be positive. 如果倾斜方向相反的话，它就是正的了。
If you are using a tilt sensitive tablet you can also spray images that distort depending on the stylus pressure and tilt direction and tilt angle. 假如你使用倾斜敏感书写板你也能够喷射图象其扭曲根据铁笔压力和倾斜方向和倾斜角度。
