From f7bcfa39c174bf24f27018980143135dc9a8a26b Mon Sep 17 00:00:00 2001
From: mdroe <mdroe@stsci.edu>
Date: Thu, 7 Jun 2012 17:08:42 +0000
Subject: Make area calculation more accurate by not counting the first point
 twice when doing centroid calculation

git-svn-id: http://svn.stsci.edu/svn/ssb/stsci_python/stsci_python/branches/sphere@17220 fe389314-cf27-0410-b35b-8c050e845b92

Former-commit-id: 1da94015b873da448961df3bc950a6b1a5cd51ae
---
 lib/polygon.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lib/polygon.py')

diff --git a/lib/polygon.py b/lib/polygon.py
index 0d8438c..fc4dad7 100644
--- a/lib/polygon.py
+++ b/lib/polygon.py
@@ -427,7 +427,7 @@ class SphericalPolygon(object):
         points = self._points.copy()
 
         # Rotate polygon so that center of polygon is at north pole
-        centroid = np.mean(points, axis=0)
+        centroid = np.mean(points[:-1], axis=0)
         centroid = vector.normalize_vector(*centroid)
         points = self._points - (centroid + np.array([0, 0, 1]))
         vector.normalize_vector(
-- 
cgit