@@ -190,7 +190,7 @@ public:
#else
points[0].set(min_x(), min_y());
points[1].set(max_x(), min_y());
- points[2].set((max_x() - min_x()) / 2, max_y());
+ points[2].set((min_x() + max_x()) / 2, max_y());
#endif
}