From 8639676eb366d16d657a69e21ceedde5822b0587 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Thu, 27 Mar 2014 10:40:00 +1100
Subject: [PATCH] Plane: we need 5 points for a valid geofence

the first and last points need to be the same for it to be a closed
polygon
---
 ArduPlane/geofence.pde | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/ArduPlane/geofence.pde b/ArduPlane/geofence.pde
index 7edd289915..2130dafa08 100644
--- a/ArduPlane/geofence.pde
+++ b/ArduPlane/geofence.pde
@@ -6,8 +6,9 @@
 
 #if GEOFENCE_ENABLED == ENABLED
 
-#define MIN_GEOFENCE_POINTS 4 //3 to define a minimal polygon (triangle)
-                              //+ 1 for return point.
+#define MIN_GEOFENCE_POINTS 5 // 3 to define a minimal polygon (triangle)
+                              // + 1 for return point and +1 for last
+                              // pt (same as first)
 
 /*
  *  The state of geo-fencing. This structure is dynamically allocated