From ee2fab75856ff79e198fb07e6d2b302fea5d0458 Mon Sep 17 00:00:00 2001
From: Coda Phillips <cphillips@sean.ssec.wisc.edu>
Date: Tue, 12 Jul 2016 14:37:17 -0500
Subject: [PATCH] refactor mirror safing code

---
 scene_checks.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scene_checks.py b/scene_checks.py
index d1d6971..828ef71 100644
--- a/scene_checks.py
+++ b/scene_checks.py
@@ -24,7 +24,7 @@ def safing_check(frame, parameters):
     if not np.in1d(['hatchOpen','sceneMirrorPosition'], frame.columns).all():
         return frame
 
-    hatch_closing = ((frame.hatchOpen == 1)  & ((frame.hatchOpen == -3).diff(-1) == 1)).shift(1)
+    hatch_closing = (frame.hatchOpen == 1).shift(1)  & (frame.hatchOpen == -3)
     mirror_safing = (hatch_closing & frame.sceneMirrorPosition.isin([ord('H'), ord('A')]))
     frame['safing_check'] = mirror_safing * 1
     annotate_all(frame, mirror_safing, 'mirror likely safed during view')
-- 
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