Bugfix: ensure GPS WP1 Mag-bearing is normalised to [0..360]

[flightgear.git] / src / Instrumentation / gps.cxx

diff --git a/src/Instrumentation/gps.cxx b/src/Instrumentation/gps.cxx
index 2c6f36495882344acf8d2b10ddfe32bfaec72c66..2f7455b83820b022ffbe382d2fdf0935b0df7e93 100644 (file)
--- a/src/Instrumentation/gps.cxx
+++ b/src/Instrumentation/gps.cxx
@@ -1186,7 +1186,9 @@ double GPS::getWP1MagBearing() const
     return -9999.0;
   }
 
-  return _wp1TrueBearing - _magvar_node->getDoubleValue();
+  double magBearing = _wp1TrueBearing - _magvar_node->getDoubleValue();
+  SG_NORMALIZE_RANGE(magBearing, 0.0, 360.0);
+  return magBearing;
 }
 
 double GPS::getWP1CourseDeviation() const