From 23f343a6087dbb00ec01417882b22879ffdd1b9b Mon Sep 17 00:00:00 2001
From: "Stephen M. McQuay" <smcquay@fusionio.com>
Date: Wed, 30 May 2012 22:57:26 -0600
Subject: [PATCH] added Vertex method to allow for +=

---
 surf/geometry.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/surf/geometry.py b/surf/geometry.py
index 090e2b7..c780317 100644
--- a/surf/geometry.py
+++ b/surf/geometry.py
@@ -95,6 +95,8 @@ class Vertex(list):
         # for now just assume type(other) = Vertex... bad, I know
         return Vertex(self.x + other.x, self.y + other.y, self.z + other.z)
 
+    __iadd__ = __add__
+
     def __radd__(self, other):
         return other + self