From 795df7e315c3d691717f8b077d4668e5ef31ac64 Mon Sep 17 00:00:00 2001
From: Kaalleen <36401965+kaalleen@users.noreply.github.com>
Date: Tue, 4 Jul 2023 06:27:33 +0200
Subject: avoid error message on small contour fill with single or double
 spiral (#2403)

---
 lib/stitches/contour_fill.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'lib/stitches/contour_fill.py')

diff --git a/lib/stitches/contour_fill.py b/lib/stitches/contour_fill.py
index 2ea61afb..993fa104 100644
--- a/lib/stitches/contour_fill.py
+++ b/lib/stitches/contour_fill.py
@@ -569,6 +569,7 @@ def _make_fermat_spiral(rings, stitch_length, starting_point):
 
 def _make_spiral(rings, stitch_length, starting_point):
     path = []
+    spiral_part = None
 
     for ring1, ring2 in zip(rings[:-1], rings[1:]):
         check_stop_flag()
@@ -577,7 +578,8 @@ def _make_spiral(rings, stitch_length, starting_point):
         # skip last to avoid duplicated points
         path.extend(spiral_part.coords[:-1])
 
-    # at the end add last point
-    path.append(spiral_part.coords[-1])
+    if spiral_part:
+        # at the end add last point
+        path.append(spiral_part.coords[-1])
 
     return path
-- 
cgit v1.2.3