From 837f2eabb81d3f4c7e32a4d6d0366ae78e5c40a9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lorenz=20H=C3=BCdepohl?= <dev@stellardeath.org>
Date: Mon, 13 Feb 2017 18:49:41 +0100
Subject: [PATCH] PathHelix: Be more liberal in what constitues a straight
 cylinder

---
 src/Mod/Path/PathScripts/PathHelix.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/Mod/Path/PathScripts/PathHelix.py b/src/Mod/Path/PathScripts/PathHelix.py
index db8ecd740..72fb10cc5 100644
--- a/src/Mod/Path/PathScripts/PathHelix.py
+++ b/src/Mod/Path/PathScripts/PathHelix.py
@@ -53,9 +53,10 @@ else:
 
 def z_cylinder(cyl):
     """ Test if cylinder is aligned to z-Axis"""
-    if cyl.Surface.Axis.x != 0.0:
+    axis = cyl.Surface.Axis
+    if abs(axis.x) > 1e-10 * abs(axis.z):
         return False
-    if cyl.Surface.Axis.y != 0.0:
+    if abs(axis.y) > 1e-10 * abs(axis.z):
         return False
     return True