X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FInstrumentation%2Fmarker_beacon.cxx;h=35179c992c653e6bdb63279e93862f5a0647877b;hb=010e03fab49219813f2957b0e494672d01d62ff4;hp=012f1c9847d6a1c8044c133dbca0a15f4dab6867;hpb=7647b1620b3b70367e7852eba5fc035dcfffd1ad;p=flightgear.git

diff --git a/src/Instrumentation/marker_beacon.cxx b/src/Instrumentation/marker_beacon.cxx
index 012f1c984..35179c992 100644
--- a/src/Instrumentation/marker_beacon.cxx
+++ b/src/Instrumentation/marker_beacon.cxx
@@ -206,13 +206,7 @@ FGMarkerBeacon::update(double dt)
 static bool check_beacon_range( const SGGeod& pos,
                                 FGNavRecord *b )
 {
-    SGVec3d aircraft = SGVec3d::fromGeod(pos);
-    SGVec3d station = b->get_cart();
-    // cout << "    aircraft = " << aircraft << " station = " << station
-    //      << endl;
-
-    SGVec3d tmp = station - aircraft;
-    double d = dot(tmp, tmp);
+    double d = distSqr(b->get_cart(), SGVec3d::fromGeod(pos));
     // cout << "  distance = " << d << " ("
     //      << FG_ILS_DEFAULT_RANGE * SG_NM_TO_METER
     //         * FG_ILS_DEFAULT_RANGE * SG_NM_TO_METER