From: daid <daid303@gmail.com>
Date: Tue, 10 Dec 2013 13:33:16 +0000 (+0100)
Subject: Possible fix for #655
X-Git-Tag: 14.01~29
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=cura.git;a=commitdiff_plain;h=6f5fe9dff6f3fd29546d46e5a67ef40ec285dcc6

Possible fix for #655
---

diff --git a/Cura/util/polygon.py b/Cura/util/polygon.py
index 9b7a987b..1eba59e9 100644
--- a/Cura/util/polygon.py
+++ b/Cura/util/polygon.py
@@ -18,6 +18,8 @@ def convexHull(pointList):
 
 	points = unique.keys()
 	points.sort()
+	if len(points) < 2:
+		return numpy.array([], numpy.float32)
 
 	# Build upper half of the hull.
 	upper = [points[0], points[1]]
@@ -38,7 +40,7 @@ def convexHull(pointList):
 	del lower[0]
 	del lower[-1]
 
-	return numpy.array(upper + lower, numpy.float32) - numpy.array([0.0,0.0], numpy.float32)
+	return numpy.array(upper + lower, numpy.float32)
 
 def minkowskiHull(a, b):
 	points = numpy.zeros((len(a) * len(b), 2))