From d164d13517fccf180ddbc7a0fc29b3b48963ca8d Mon Sep 17 00:00:00 2001
From: Alessandro Ranellucci <aar@cpan.org>
Date: Tue, 1 May 2012 19:19:31 +0200
Subject: [PATCH] Bugfix: arc compensation code was filling some small holes

---
 lib/Slic3r/Layer.pm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/Slic3r/Layer.pm b/lib/Slic3r/Layer.pm
index 779f75815..8b718b91e 100644
--- a/lib/Slic3r/Layer.pm
+++ b/lib/Slic3r/Layer.pm
@@ -198,7 +198,10 @@ sub make_perimeters {
             next unless $area <= $Slic3r::small_perimeter_area;
             my $radius = sqrt($area / PI);
             my $new_radius = (scale($Slic3r::flow_width) + sqrt((scale($Slic3r::flow_width)**2) + (4*($radius**2)))) / 2;
+            # holes are always turned to contours, so reverse point order before and after
+            $hole->reverse;
             @$hole = map Slic3r::Point->new($_), @{ +($hole->offset(+ ($new_radius - $radius)))[0] };
+            $hole->reverse;
         }
         
         # create other offsets