From df4612a209dc172b629166d8565f83d609638372 Mon Sep 17 00:00:00 2001
From: Alessandro Ranellucci <aar@cpan.org>
Date: Fri, 5 Jul 2013 17:00:14 +0200
Subject: [PATCH] Prefer starting points that are NOT in overhangs

---
 lib/Slic3r/GCode.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Slic3r/GCode.pm b/lib/Slic3r/GCode.pm
index 2d6e27f8..833fe18c 100644
--- a/lib/Slic3r/GCode.pm
+++ b/lib/Slic3r/GCode.pm
@@ -156,7 +156,7 @@ sub extrude_loop {
     # find candidate starting points
     # start looking for concave vertices not being overhangs
     my @concave = $loop->polygon->concave_points;
-    my @candidates = grep Boost::Geometry::Utils::point_covered_by_multi_polygon($_, $self->_layer_overhangs),
+    my @candidates = grep !Boost::Geometry::Utils::point_covered_by_multi_polygon($_, $self->_layer_overhangs),
         @concave;
     if (!@candidates) {
         # if none, look for any concave vertex