From ccb9e64caf89d6910366e4e997452a13bbc3e133 Mon Sep 17 00:00:00 2001
From: frohlich <frohlich>
Date: Fri, 4 Sep 2009 17:01:53 +0000
Subject: [PATCH] Avoid division by zero.

Modified Files:
	src/Instrumentation/dme.cxx
---
 src/Instrumentation/dme.cxx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Instrumentation/dme.cxx b/src/Instrumentation/dme.cxx
index 5685dbabe..754008bd4 100644
--- a/src/Instrumentation/dme.cxx
+++ b/src/Instrumentation/dme.cxx
@@ -146,7 +146,8 @@ DME::update (double delta_time_sec)
         }
         _distance_node->setDoubleValue( tmp_dist );
         _speed_node->setDoubleValue(speed_kt);
-        _time_node->setDoubleValue(distance_nm/speed_kt*60.0);
+        if (SGLimitsd::min() < fabs(speed_kt))
+          _time_node->setDoubleValue(distance_nm/speed_kt*60.0);
         
     } else {
         _last_distance_nm = 0;