augmented1 java

augmented1.java

public class CameraViewActivity extends Activity implements
     SurfaceHolder.Callback,OnLocationChangedListener,OnAzimuthChangedListener{

private Camera mCamera;
private SurfaceHolder mSurfaceHolder;
private boolean isCameraviewOn = false;
private AugmentedPOI mPoi;

private double mAzimuthReal = 0;
private double mAzimuthTeoretical = 0;
private static double AZIMUTH_ACCURACY = 5;
private double mMyLatitude = 0;
private double mMyLongitude = 0;

private MyCurrentAzimuth myCurrentAzimuth;
private MyCurrentLocation myCurrentLocation;

TextView descriptionTextView;
ImageView pointerIcon;


  @Override
  public void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.activity_camera_view);
     setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

     setupListeners();
     setupLayout();
     setAugmentedRealityPoint();
  }

/**Here is the place where you can setup your points of interest. In our example we will stick to just one but you can extend algorithm to work with DB etc. **/
  private void setAugmentedRealityPoint() {
      poi = new AugmentedPOI(
     "Kościół Mariacki", 
     "Kościół Mariacki w Krakowie", 
     50.06169631, 
     19.93919566 
);
  }

  public double calculateTeoreticalAzimuth() {
     ....
  }
 
  private List<Double> calculateAzimuthAccuracy(double azimuth) {
     ....
  }

  private boolean isBetween(double minAngle, double maxAngle, double azimuth) {
     ....
  }

  private void updateDescription() {
    descriptionTextView.setText(mPoi.getPoiName() + " azimuthTeoretical "
        + mAzimuthTeoretical + " azimuthReal " + mAzimuthReal + " latitude "
        + mMyLatitude + " longitude " + mMyLongitude);
  }

  @Override
  public void getCurrentLocation(Location location) {
     ....
  }

  @Override
  public void onAzimuthChanged(float azimuthChangedFrom, float azimuthChangedTo) {
     ....
  }

  private void setupListeners() {
     myCurrentLocation = new MyCurrentLocation(this);
     myCurrentLocation.buildGoogleApiClient(this);
     myCurrentLocation.start();

     myCurrentAzimuth = new MyCurrentAzimuth(this, this);
     myCurrentAzimuth.start();
  }


  private void setupLayout() {
     descriptionTextView = (TextView) findViewById(R.id.cameraTextView);

     getWindow().setFormat(PixelFormat.UNKNOWN);
     SurfaceView surfaceView = (SurfaceView) findViewById(R.id.cameraview);
     surfaceHolder = surfaceView.getHolder();
     surfaceHolder.addCallback(this);
     surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
  }

  @Override
  public void surfaceChanged(SurfaceHolder holder, int format, int width,
                       int height) {
     if (isCameraviewOn) {
        mCamera.stopPreview();
        isCameraviewOn = false;
     }

     if (mCamera != null) {
        try {
           mCamera.setPreviewDisplay(surfaceHolder);
           mCamera.startPreview();
           isCameraviewOn = true;
        } catch (IOException e) {
           e.printStackTrace();
        }
     }
  }

  @Override
  public void surfaceCreated(SurfaceHolder holder) {
     mCamera = Camera.open();
     mCamera.setDisplayOrientation(90);
  }

  @Override
  public void surfaceDestroyed(SurfaceHolder holder) {
     mCamera.stopPreview();
     mCamera.release();
     mCamera = null;
     isCameraviewOn = false;
  }
}