+ private static final Comparator<RoutePoint> RG_COMP = (o1, o2) -> {
+ if (o1.getX() < o2.getX())
+ return -1;
+ else if (o1.getX() > o2.getX())
+ return 1;
+ if (o1.getY() < o2.getY())
+ return -1;
+ else if (o1.getY() > o2.getY())
+ return 1;
+ return 0;
+ };
+