问题描述
我在做一个OpenGL APPLN在我所旋转摄像头，如果Android设备旋转/沿Z轴的倾斜。
I am doing an Opengl appln in which i have to rotate the camera, if the android device is rotated/tilted along Z axis.
我试过 SensorManager.getOrientation（R，orientVals）。但值都非常波动。
陀螺仪也可在我的设备。
I tried the SensorManager.getOrientation(R, orientVals); using the magnetic and accelerometer sensors. But the values are very much fluctuating.Gyroscope is also available in my device.
由于我动画（旋转）相机，我需要一个平滑的旋转值
Since I am animating (rotate) the camera, I need a smooth rotation values
请指导我在这方面。
推荐答案
请参阅计算旋转速度，以及（如果可用）陀螺仪。
See How do you calculate the rate of rotation using the accelerometer values in Android for a particular axis on how to read Android's software-derived sensors that combine the data from the accelerometers, magnetometers, and (if available) gyroscopes.
要平滑值，使用低通滤波器或（更好，但更复杂的）一个卡尔曼滤波。我怀疑Android的软件衍生传感器，如旋转传感器已经使用卡尔曼滤波器将数据从不同的传感器相结合。 （人们可以搜索源$ C $ C ...）
To smooth values, use a low-pass filter or (better but more complicated) a Kalman filter. I suspect that Android's software-derived sensors such as the "rotation sensor" already use a Kalman filter to combine data from the different sensors. (One could search the source code...)
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