TYPE_ROTATION_VECTOR,TYPE_ORIENTATION也会给出不同的偏差结果

Question

我已经实现了旋转矢量和方向矢量的监听器,虽然我知道它已经折旧我想测试两者.

我知道旋转矢量是一个融合传感器并推荐但是根据它,NORTH(getOrientation返回的值[0](rotationMatrix,value)geaving bearing 0)与Orientation传感器的NORTH不匹配.我还从playstore的不同应用程序中得出结论,方向传感器值似乎更接近它们.

此外很多次我从Rotation_Vector的方位角值[0]然后getOrientation刚刚射击并保持在-180到180之间振荡

PS"getRotationMatrix(float [] R,float [] I,float [] gravity,float [] geomagnetic)"也给出与旋转向量相同的结果.

 public final void onSensorChanged(SensorEvent event)
{
   float rotationMatrix[];      
  switch(event.sensor.getType())
  {  
   .
       .
       .       
  case Sensor.TYPE_ROTATION_VECTOR:
       rotationMatrix=new float[16];
       mSensorManager.getRotationMatrixFromVector(rotationMatrix,event.values);
       determineOrientation(rotationMatrix);
       break; 

   case Sensor.TYPE_ORIENTATION:
        sensorZValue.setText(""+event.values[0]); //rotation about geographical z axis  
        sensorXValue.setText(""+event.values[1]); //rotation about geographical x axis  
        sensorYValue.setText(""+event.values[2]); //rotation about geographical y axis

 }//switch case ends
}


private void determineOrientation(float[] rotationMatrix)
    {
    float[] orientationValues = new float[3];
    SensorManager.getOrientation(rotationMatrix, orientationValues);
    double azimuth = Math.toDegrees(orientationValues[0]);
    double pitch = Math.toDegrees(orientationValues[1]);
    double roll = Math.toDegrees(orientationValues[2]);

    sensorZValue.setText(String.valueOf(azimuth));  //rotation about geographical z axis
    sensorXValue.setText(String.valueOf(pitch)); //rotation about geographical x axis   
    sensorYValue.setText(String.valueOf(roll)); //rotation about geographical y axis


    }

我想确定手机的Y轴和指向北的Vector之间的角度,这是我最初的实现.请建议.

Answer 1

我认为这会有所帮助...

Android 指南针可补偿倾斜和俯仰

这使用更可靠的来源计算北。

希望这可以帮助。