Fix 1153 -- close measure-grouping triangle

diff --git a/lily/lookup.cc b/lily/lookup.cc
index 2d7ae3e89db8db8755143fe4745e67b6a3b1591b..207dd06bf444e242740ae7dc5ac11cada8afad2d 100644 (file)
--- a/lily/lookup.cc
+++ b/lily/lookup.cc
@@ -534,6 +534,7 @@ Lookup::triangle (Interval iv, Real thick, Real protrude)
   points.push_back (Offset (iv[LEFT], 0));
   points.push_back (Offset (iv[RIGHT], 0));
   points.push_back (Offset (iv.center (), protrude));
+  points.push_back (Offset (iv[LEFT], 0));  // close triangle
 
   return points_to_line_stencil (thick, points);