Orientation

BNav uses the android.sensors package to gather orientation data

Global Variables

• static SensorManager _sensorManager;
• • access sensor information
• Sensor _accelerometer;
• Sensor _magnetometer;
• float[] _r = new float[9];
• • matrix to define orientation
• float[] _orientation
• • stores x, y and z data
• float[] _lastAccelerometer
• float[] _lastMagnetometer
• boolean _lastAccelerometerSet
• boolean _lastMagnetometerSet
• double heading
• • angle of current direction

Methods

• String turnDirection(double heading, double bearing)
• • returns direction given heading and bearing
• double convertRadiantoDegree(double rad)
• • convert radians to degrees (0,360]
• void onSensorChanged(SensorEvent event)
• • reading orientation data and stores heading

References

• Sensor Manager