From 7943fa23909400a3b622c9dd8cb8fbce3be70433 Mon Sep 17 00:00:00 2001
From: Florian Festi <florian@festi.info>
Date: Sat, 1 Feb 2020 15:22:35 +0100
Subject: [PATCH] flex2D: Fix division by zero for too small patterns

---
 boxes/__init__.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/boxes/__init__.py b/boxes/__init__.py
index 20c6a99..8f6c77f 100755
--- a/boxes/__init__.py
+++ b/boxes/__init__.py
@@ -1442,8 +1442,12 @@ class Boxes:
         """
         width *= self.thickness
         cx = int(x // (5 * width))
-        wx = x / 5. / cx
         cy = int(y // (5 * width))
+
+        if cx == 0  or cy == 0:
+            return
+
+        wx = x / 5. / cx
         wy = y / 5. / cy
 
         armx = (4 * wx, 90, 4 * wy, 90, 2 * wx, 90, 2 * wy)