public float getBearing() {
        // even thought google map support rotation, if the marker for current position is set as
        // flat (.flat(true)), the rotation is relative to map north, not view top, so the correct
        // value to be returned in this method is 0. TODO?
        return 0;
    }
needed to provide current coordinates for distanceDrawer
called only in GooglePositionAndHistory
main/src/main/java/cgeo/geocaching/maps/google/v2/GoogleMapView.java