fix a pointer reference.

[flightgear.git] / src / Environment / environment_ctrl.cxx

diff --git a/src/Environment/environment_ctrl.cxx b/src/Environment/environment_ctrl.cxx
index 008729be6ec0cdd7436ef098813cfdd56354cdf9..5b9cfcfb99744b5e0a72843dbb252f57ab1518d8 100644 (file)
--- a/src/Environment/environment_ctrl.cxx
+++ b/src/Environment/environment_ctrl.cxx
@@ -268,7 +268,6 @@ FGMetarCtrl::FGMetarCtrl( SGSubsystem * environmentCtrl )
        metar_valid(false),
        setup_winds_aloft(true),
        wind_interpolation_required(true),
-       station_elevation_ft(0.0),
        // Interpolation constant definitions.
        EnvironmentUpdatePeriodSec( 0.2 ),
        MaxWindChangeKtsSec( 0.2 ),
@@ -667,9 +666,11 @@ FGMetarCtrl::update(double dt)
                        }
                }
        }
-
-       set_temp_at_altitude(temperature_n->getDoubleValue(), station_elevation_ft);
-       set_dewpoint_at_altitude(dewpoint_n->getDoubleValue(), station_elevation_ft);
+       {
+               double station_elevation_ft = station_elevation_n->getDoubleValue();
+               set_temp_at_altitude(temperature_n->getDoubleValue(), station_elevation_ft);
+               set_dewpoint_at_altitude(dewpoint_n->getDoubleValue(), station_elevation_ft);
+       }
        //TODO: check if temperature/dewpoint have changed. This requires reinit.
 
        // Force an update of the 3D clouds