From aea1f38597824085739aeed1fa6f33e264e23a4b Mon Sep 17 00:00:00 2001
From: Hamilton Kibbe <hamilton.kibbe@gmail.com>
Date: Sun, 8 Feb 2015 22:27:24 -0500
Subject: Fix write_gerber_value bug

---
 gerber/utils.py | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'gerber/utils.py')

diff --git a/gerber/utils.py b/gerber/utils.py
index 86119ba..23575b3 100644
--- a/gerber/utils.py
+++ b/gerber/utils.py
@@ -138,6 +138,11 @@ def write_gerber_value(value, format=(2, 5), zero_suppression='trailing'):
     fmtstring = '%%0%d.0%df' % (MAX_DIGITS + 1, decimal_digits)
     digits = [val for val in fmtstring % value if val != '.']
 
+    # If all the digits are 0, return '0'.
+    digit_sum = reduce(lambda x,y:x+int(y), digits, 0)
+    if digit_sum == 0:
+        return '0'
+
     # Suppression...
     if zero_suppression == 'trailing':
         while digits and digits[-1] == '0':
-- 
cgit