我正在尝试使用以下方法以度数(即0-360)获取指南针方位:
float[] mGravity;
float[] mGeomagnetic;
public void onSensorChanged(SensorEvent event) {
if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER)
mGravity = event.values;
if (event.sensor.getType() == Sensor.TYPE_MAGNETIC_FIELD)
mGeomagnetic = event.values;
if (mGravity != null && mGeomagnetic != null) {
float R[] = new float[9];
float I[] = new float[9];
boolean success = SensorManager.getRotationMatrix(R, I, mGravity,
mGeomagnetic);
if (success) {
float orientation[] = new float[3];
SensorManager.getOrientation(R, orientation);
float azimut = orientation[0];
bearing.setText("Bearing: "+ azimut);
}
}
}
方位角值(即
orientation[0]
)应该是0 <= 方位角 < 360,但我旋转设备时只得到-3到3的值。请问有人能告诉我问题可能是什么吗?