@Override
  public void install(TileView tileView) {
    tileView.addReadyListener(this);
    tileView.addListener(this);
    mScale = tileView.getScale();
  }
Note that coordinates are generally expressed as lat, lng
while 2D space is generally x, y
these are reversed - latitude is the y-axis of the earth, and longitude is the x-axis

North and south are longitude; east and west are latitude.
tileview/src/main/java/com/moagrius/tileview/plugins/CoordinatePlugin.java