From 1ecadc10fb94b0b15efc7ebc87387995f9074479 Mon Sep 17 00:00:00 2001
From: Alessandro Ranellucci <aar@cpan.org>
Date: Sun, 28 Oct 2012 19:27:54 +0100
Subject: [PATCH] Fixed regression causing one perimeter to be generated even
 when perimeters where set to 0. #759

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

diff --git a/lib/Slic3r/Layer/Region.pm b/lib/Slic3r/Layer/Region.pm
index d57105a486..0fbd1f495d 100644
--- a/lib/Slic3r/Layer/Region.pm
+++ b/lib/Slic3r/Layer/Region.pm
@@ -196,7 +196,7 @@ sub make_perimeters {
         
         # generate perimeters inwards (loop 0 is the external one)
         my $loop_number = $Slic3r::Config->perimeters + ($surface->additional_inner_perimeters || 0);
-        push @perimeters, [[@last_offsets]];
+        push @perimeters, [[@last_offsets]] if $loop_number > 0;
         for (my $loop = 1; $loop < $loop_number; $loop++) {
             # offsetting a polygon can result in one or many offset polygons
             my @new_offsets = ();