- m.add_at_edge (X_AXIS, RIGHT, yb, 0);
- m.add_at_edge (X_AXIS, LEFT, yb, 0);
+ Stencil m = Lookup::round_filled_box (b, blot);
+ Stencil yb = Lookup::round_filled_box (Box (Interval (-0.5, 0.5) * ythick, Interval (-ss, ss)), blot);
+
+ m.add_at_edge (X_AXIS, RIGHT, yb, 0, 0);
+ m.add_at_edge (X_AXIS, LEFT, yb, 0, 0);