From 692e033e71ed4655cef93be44c762bacf39caaee Mon Sep 17 00:00:00 2001
From: Lex Neva <github.com@lexneva.name>
Date: Mon, 4 Jun 2018 20:19:37 -0400
Subject: don't crash on empty subpaths

---
 lib/elements/stroke.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'lib/elements/stroke.py')

diff --git a/lib/elements/stroke.py b/lib/elements/stroke.py
index 48662b6d..097b36bc 100644
--- a/lib/elements/stroke.py
+++ b/lib/elements/stroke.py
@@ -97,6 +97,11 @@ class Stroke(EmbroideryElement):
         # TODO: use inkstitch.stitches.running_stitch
 
         patch = Patch(color=self.color)
+
+        # can't stitch a single point
+        if len(emb_point_list) < 2:
+            return patch
+
         p0 = emb_point_list[0]
         rho = 0.0
         side = 1
@@ -156,6 +161,7 @@ class Stroke(EmbroideryElement):
             else:
                 patch = self.stroke_points(path, self.zigzag_spacing / 2.0, stroke_width=self.stroke_width)
 
-            patches.append(patch)
+            if patch:
+                patches.append(patch)
 
         return patches
-- 
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