From b511bb6d3defbab9e7e6ea9757a5844c3cdec368 Mon Sep 17 00:00:00 2001
From: David Vierra <codewarrior@hawaii.rr.com>
Date: Thu, 3 Jan 2013 20:58:41 -1000
Subject: [PATCH] Add method Vector.length

---
 box.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/box.py b/box.py
index 1406766..40a2dd7 100644
--- a/box.py
+++ b/box.py
@@ -1,5 +1,6 @@
 from collections import namedtuple
 import itertools
+import math
 
 _Vector = namedtuple("_Vector", ("x", "y", "z"))
 
@@ -27,6 +28,9 @@ class Vector(_Vector):
 
     __div__ = __truediv__
 
+    def length(self):
+        return math.sqrt(self[0] * self[0] + self[1] * self[1] + self[2] * self[2])
+    
 class BoundingBox (object):
     type = int