]> git.mxchange.org Git - flightgear.git/blobdiff - src/FDM/LaRCsim.cxx
Updated to match changes in radiostack.[ch]xx
[flightgear.git] / src / FDM / LaRCsim.cxx
index e3134d337517577be630ace1b1da2ced72a54e49..43223bf4cf9bfbde1f8fc6a0df2a7a126bf3e165 100644 (file)
 //
 // $Id$
 
+#include <string.h>            // strcmp()
 
 #include <simgear/constants.h>
 #include <simgear/debug/logstream.hxx>
 
-#include <Scenery/scenery.hxx>
-
+#include <Main/fg_props.hxx>
 #include <Aircraft/aircraft.hxx>
 #include <Controls/controls.hxx>
 #include <FDM/flight.hxx>
 #include <FDM/LaRCsim/ls_generic.h>
 #include <FDM/LaRCsim/ls_interface.h>
 #include <FDM/LaRCsimIC.hxx>
+#include <FDM/UIUCModel/uiuc_aircraft.h>
 
 #include "IO360.hxx"
 #include "LaRCsim.hxx"
 
-FGLaRCsim::FGLaRCsim(void) {
-   ls_toplevel_init( 0.0, (char *)globals->get_options()->get_aircraft().c_str() );
-   lsic=new LaRCsimIC; //this needs to be brought up after LaRCsim is
-   copy_to_LaRCsim(); // initialize all of LaRCsim's vars
-   //this should go away someday -- formerly done in fg_init.cxx
-   Mass = 8.547270E+01;
-   I_xx = 1.048000E+03;
-        I_yy = 3.000000E+03;
-   I_zz = 3.530000E+03;
-   I_xz = 0.000000E+00;
-   
-   
+FGLaRCsim::FGLaRCsim( double dt ) {
+//     set_delta_t( dt );
 
-}
+    speed_up = fgGetNode("/sim/speed-up", true);
+    aero = fgGetNode("/sim/aero", true);
 
-FGLaRCsim::~FGLaRCsim(void) {
-   if(lsic != NULL) {
-    delete lsic;
-   }
-}    
+    ls_toplevel_init( 0.0, (char *)(aero->getStringValue()) );
 
-// Initialize the LaRCsim flight model, dt is the time increment for
-// each subsequent iteration through the EOM
-bool FGLaRCsim::init( double dt ) {
-    
-    ls_set_model_dt(dt);
-    // Initialize our little engine that hopefully might
-    eng.init(dt);
-    // dcl - in passing dt to init rather than update I am assuming
-    // that the LaRCsim dt is fixed at one value (yes it is 120hz CLO)
+    lsic=new LaRCsimIC; //this needs to be brought up after LaRCsim is
+    if ( !strcmp(aero->getStringValue(), "c172") ) {
+        copy_to_LaRCsim(); // initialize all of LaRCsim's vars
 
-    // update the engines interface
-    FGEngInterface e;
-    add_engine( e );
-    
-
-    // FG_LOG( FG_FLIGHT, FG_INFO, "FGLaRCsim::init()"  );
-
-    double save_alt = 0.0;
-
-    if ( get_Altitude() < -9000.0 ) {
-       save_alt = get_Altitude();
-       set_Altitude( 0.0 );
+        //this should go away someday -- formerly done in fg_init.cxx
+        Mass = 8.547270E+01;
+        I_xx = 1.048000E+03;
+        I_yy = 3.000000E+03;
+        I_zz = 3.530000E+03;
+        I_xz = 0.000000E+00;
     }
 
-    // translate FG to LaRCsim structure
-    copy_to_LaRCsim();
-
-    // actual LaRCsim top level init
-    // ls_toplevel_init( dt, (char *)globals->get_options()->get_aircraft().c_str() );
-    
-
-    FG_LOG( FG_FLIGHT, FG_INFO, "FG pos = " << 
-           get_Latitude() );
+    ls_set_model_dt(dt);
 
-    // translate LaRCsim back to FG structure
-    copy_from_LaRCsim();
+            // Initialize our little engine that hopefully might
+    eng.init(dt);
+    // dcl - in passing dt to init rather than update I am assuming
+    // that the LaRCsim dt is fixed at one value (yes it is 120hz CLO)
+}
 
-    // but lets restore our original bogus altitude when we are done
-    if ( save_alt < -9000.0 ) {
-       set_Altitude( save_alt );
+FGLaRCsim::~FGLaRCsim(void) {
+    if ( lsic != NULL ) {
+        delete lsic;
+        lsic = NULL;
     }
+}
 
-    // set valid time for this record
-    stamp_time();
-
-    return true;
+// Initialize the LaRCsim flight model, dt is the time increment for
+// each subsequent iteration through the EOM
+void FGLaRCsim::init() {
+   //do init common to all FDM's
+   common_init();
 }
 
 
 // Run an iteration of the EOM (equations of motion)
-bool FGLaRCsim::update( int multiloop ) {
+void FGLaRCsim::update( double dt ) {
 
-    if ( globals->get_options()->get_aircraft() == "c172" ) {
+    if (is_suspended())
+      return;
+
+    int multiloop = _calc_multiloop(dt);
+
+    if ( !strcmp(aero->getStringValue(), "c172") ) {
        // set control inputs
+       // cout << "V_calibrated_kts = " << V_calibrated_kts << '\n';
        eng.set_IAS( V_calibrated_kts );
-       eng.set_Throttle_Lever_Pos( controls.get_throttle( 0 ) * 100.0 );
+       eng.set_Throttle_Lever_Pos( globals->get_controls()->get_throttle( 0 )
+                                   * 100.0 );
        eng.set_Propeller_Lever_Pos( 100 );
-       if ( controls.get_mixture( 0 ) > 0.60 ) {
-           eng.set_Mixture_Lever_Pos( controls.get_mixture( 0 ) * 100.0 );
-       } else {
-           eng.set_Mixture_Lever_Pos( 60.0 );
-       }
+        eng.set_Mixture_Lever_Pos( globals->get_controls()->get_mixture( 0 )
+                                  * 100.0 );
+       eng.set_Magneto_Switch_Pos( globals->get_controls()->get_magnetos(0) );
+       eng.setStarterFlag( globals->get_controls()->get_starter(0) );
+       eng.set_p_amb( Static_pressure );
+       eng.set_T_amb( Static_temperature );
 
        // update engine model
        eng.update();
 
+       // Fake control-surface positions
+       fgSetDouble("/surface-positions/flap-pos-norm",
+                   fgGetDouble("/controls/flaps"));
+                               // FIXME: ignoring trim
+       fgSetDouble("/surface-positions/elevator-pos-norm",
+                   fgGetDouble("/controls/elevator"));
+                               // FIXME: ignoring trim
+       fgSetDouble("/surface-positions/left-aileron-pos-norm",
+                   fgGetDouble("/controls/aileron"));
+                               // FIXME: ignoring trim
+       fgSetDouble("/surface-positions/right-aileron-pos-norm",
+                   -1 * fgGetDouble("/controls/aileron"));
+                               // FIXME: ignoring trim
+       fgSetDouble("/surface-positions/rudder-pos-norm",
+                   fgGetDouble("/controls/rudder"));
+
        // copy engine state values onto "bus"
-       FGEngInterface *e = get_engine( 0 );
-       e->set_Throttle( controls.get_throttle( 0 ) * 100.0 );
-       e->set_Mixture( 80 );
-       e->set_Prop_Advance( 100 );
-       e->set_RPM( eng.get_RPM() );
-       e->set_Manifold_Pressure( eng.get_Manifold_Pressure() );
-       e->set_MaxHP( eng.get_MaxHP() );
-       e->set_Percentage_Power( eng.get_Percentage_Power() );
-       e->set_EGT( eng.get_EGT() );
-       e->set_prop_thrust( eng.get_prop_thrust_SI() );
-
-#if 0
-       FG_LOG( FG_FLIGHT, FG_INFO, "Throttle = " << controls.get_throttle( 0 ) * 100.0);
-       FG_LOG( FG_FLIGHT, FG_INFO, " Mixture = " << 80);
-       FG_LOG( FG_FLIGHT, FG_INFO, " RPM = " << eng.get_RPM());
-       FG_LOG( FG_FLIGHT, FG_INFO, " MP = " << eng.get_Manifold_Pressure());
-       FG_LOG( FG_FLIGHT, FG_INFO, " HP = " << ( eng.get_MaxHP() * eng.get_Percentage_Power()/ 100.0) );
-       FG_LOG( FG_FLIGHT, FG_INFO, " EGT = " << eng.get_EGT());
-       FG_LOG( FG_FLIGHT, FG_INFO, " Thrust (N) " << eng.get_prop_thrust_SI());        // Thrust in Newtons
-       FG_LOG( FG_FLIGHT, FG_INFO, '\n');
-#endif
-       // Hmm .. Newtons to lbs is 0.2248 ...    
-       F_X_engine = eng.get_prop_thrust_SI() * 0.07;
+       fgSetDouble("/engines/engine/rpm", eng.get_RPM());
+       fgSetDouble("/engines/engine/mp-osi", eng.get_Manifold_Pressure());
+       fgSetDouble("/engines/engine/max-hp", eng.get_MaxHP());
+       fgSetDouble("/engines/engine/power-pct", eng.get_Percentage_Power());
+       fgSetDouble("/engines/engine/egt-degf", eng.get_EGT());
+       fgSetDouble("/engines/engine/cht-degf", eng.get_CHT());
+       fgSetDouble("/engines/engine/prop-thrust", eng.get_prop_thrust_SI());
+       fgSetDouble("/engines/engine/fuel-flow-gph",
+                   eng.get_fuel_flow_gals_hr());
+       fgSetDouble("/engines/engine/oil-temperature-degf",
+                   eng.get_oil_temp());
+       fgSetDouble("/engines/engine/running", eng.getRunningFlag());
+       fgSetDouble("/engines/engine/cranking", eng.getCrankingFlag());
+
+       static const SGPropertyNode *fuel_freeze
+           = fgGetNode("/sim/freeze/fuel");
+
+       if ( ! fuel_freeze->getBoolValue() ) {
+           //Assume we are using both tanks equally for now
+           fgSetDouble("/consumables/fuel/tank[0]/level-gal_us",
+                       fgGetDouble("/consumables/fuel/tank[0]/level-gal_us")
+                       - (eng.get_fuel_flow_gals_hr() / (2 * 3600))
+                       * dt);
+           fgSetDouble("/consumables/fuel/tank[1]/level-gal_us",
+                       fgGetDouble("/consumables/fuel/tank[1]/level-gal_us")
+                       - (eng.get_fuel_flow_gals_hr() / (2 * 3600))
+                       * dt);
+       }
+
+        F_X_engine = eng.get_prop_thrust_lbs();
+       // cout << "F_X_engine = " << F_X_engine << '\n';
     }
 
     double save_alt = 0.0;
@@ -159,33 +165,32 @@ bool FGLaRCsim::update( int multiloop ) {
     }
 
     // copy control positions into the LaRCsim structure
-    Lat_control = controls.get_aileron() /
-       globals->get_options()->get_speed_up();
-    Long_control = controls.get_elevator();
-    Long_trim = controls.get_elevator_trim();
-    Rudder_pedal = controls.get_rudder() /
-       globals->get_options()->get_speed_up();
-    Flap_handle = 30.0 * controls.get_flaps();
-
-    if ( globals->get_options()->get_aircraft() == "c172" ) {
-       Use_External_Engine = 1;
+    Lat_control = globals->get_controls()->get_aileron() /
+    speed_up->getIntValue();
+    Long_control = globals->get_controls()->get_elevator();
+    Long_trim = globals->get_controls()->get_elevator_trim();
+    Rudder_pedal = globals->get_controls()->get_rudder() /
+        speed_up->getIntValue();
+    Flap_handle = 30.0 * globals->get_controls()->get_flaps();
+
+    if ( !strcmp(aero->getStringValue(), "c172") ) {
+        Use_External_Engine = 1;
     } else {
        Use_External_Engine = 0;
     }
 
-    Throttle_pct = controls.get_throttle( 0 ) * 1.0;
+    Throttle_pct = globals->get_controls()->get_throttle( 0 ) * 1.0;
 
-    Brake_pct[0] = controls.get_brake( 1 );
-    Brake_pct[1] = controls.get_brake( 0 );
+    Brake_pct[0] = globals->get_controls()->get_brake( 1 );
+    Brake_pct[1] = globals->get_controls()->get_brake( 0 );
 
     // Inform LaRCsim of the local terrain altitude
     // Runway_altitude = get_Runway_altitude();
-    Runway_altitude = scenery.cur_elev * METER_TO_FEET;
-
+    Runway_altitude = getACModel()->get3DModel()->getFGLocation()->get_cur_elev_m() * SG_METER_TO_FEET;
     // Weather
     /* V_north_airmass = get_V_north_airmass();
-    V_east_airmass =  get_V_east_airmass();
-    V_down_airmass =  get_V_down_airmass(); */
+       V_east_airmass =  get_V_east_airmass();
+       V_down_airmass =  get_V_down_airmass(); */
 
 
     // old -- FGInterface_2_LaRCsim() not needed except for Init()
@@ -195,16 +200,20 @@ bool FGLaRCsim::update( int multiloop ) {
     // printf("Altitude = %.2f\n", Altitude * 0.3048);
     // printf("Radius to Vehicle = %.2f\n", Radius_to_vehicle * 0.3048);
 
-    ls_update(multiloop);
+    // for engine functions (sounds and instruments)
+    // drive the rpm gauge
+    fgSetDouble("/engines/engine/rpm", (globals->get_controls()->get_throttle( 0 ) * 100.0 * 25 ));
+    // manifold air pressure, which drives the sound (see *sound.xml file)
+    fgSetDouble("/engines/engine/mp-osi", (globals->get_controls()->get_throttle( 0 ) * 100.0 ));
+    // make the engine cranking and running sounds when fgfs starts up
+    fgSetDouble("/engines/engine/cranking", 1);
+    fgSetDouble("/engines/engine/running", 1);
 
-    if(isnan(Phi)) {
-       busdump();
-       exit(1);
-    } 
+    ls_update(multiloop);
 
     // printf("%d FG_Altitude = %.2f\n", i, FG_Altitude * 0.3048);
     // printf("%d Altitude = %.2f\n", i, Altitude * 0.3048);
-    
+
     // translate LaRCsim back to FG structure so that the
     // autopilot (and the rest of the sim can use the updated
     // values
@@ -214,8 +223,6 @@ bool FGLaRCsim::update( int multiloop ) {
     if ( save_alt < -9000.0 ) {
        set_Altitude( save_alt );
     }
-
-    return true;
 }
 
 
@@ -430,14 +437,14 @@ bool FGLaRCsim::copy_from_LaRCsim() {
     _set_Velocities_Local( V_north, V_east, V_down );
     // set_Velocities_Ground( V_north_rel_ground, V_east_rel_ground, 
     //                      V_down_rel_ground );
-    // set_Velocities_Local_Airmass( V_north_airmass, V_east_airmass,
-    //                             V_down_airmass );
+    _set_Velocities_Local_Airmass( V_north_airmass, V_east_airmass,
+                                  V_down_airmass );
     // set_Velocities_Local_Rel_Airmass( V_north_rel_airmass, 
     //                          V_east_rel_airmass, V_down_rel_airmass );
     // set_Velocities_Gust( U_gust, V_gust, W_gust );
     _set_Velocities_Wind_Body( U_body, V_body, W_body );
 
-    // set_V_rel_wind( V_rel_wind );
+    _set_V_rel_wind( V_rel_wind );
     // set_V_true_kts( V_true_kts );
     // set_V_rel_ground( V_rel_ground );
     // set_V_inertial( V_inertial );
@@ -450,32 +457,32 @@ bool FGLaRCsim::copy_from_LaRCsim() {
     _set_Omega_Body( P_body, Q_body, R_body );
     // set_Omega_Local( P_local, Q_local, R_local );
     // set_Omega_Total( P_total, Q_total, R_total );
-    
+
     _set_Euler_Rates( Phi_dot, Theta_dot, Psi_dot );
     _set_Geocentric_Rates( Latitude_dot, Longitude_dot, Radius_dot );
 
     _set_Mach_number( Mach_number );
 
-    FG_LOG( FG_FLIGHT, FG_DEBUG, "lon = " << Longitude 
+    SG_LOG( SG_FLIGHT, SG_DEBUG, "lon = " << Longitude 
            << " lat_geoc = " << Lat_geocentric << " lat_geod = " << Latitude 
            << " alt = " << Altitude << " sl_radius = " << Sea_level_radius 
            << " radius_to_vehicle = " << Radius_to_vehicle );
 
     double tmp_lon_geoc = Lon_geocentric;
-    while ( tmp_lon_geoc < -FG_PI ) { tmp_lon_geoc += FG_2PI; }
-    while ( tmp_lon_geoc > FG_PI ) { tmp_lon_geoc -= FG_2PI; }
+    while ( tmp_lon_geoc < -SGD_PI ) { tmp_lon_geoc += SGD_2PI; }
+    while ( tmp_lon_geoc > SGD_PI ) { tmp_lon_geoc -= SGD_2PI; }
 
     double tmp_lon = Longitude;
-    while ( tmp_lon < -FG_PI ) { tmp_lon += FG_2PI; }
-    while ( tmp_lon > FG_PI ) { tmp_lon -= FG_2PI; }
+    while ( tmp_lon < -SGD_PI ) { tmp_lon += SGD_2PI; }
+    while ( tmp_lon > SGD_PI ) { tmp_lon -= SGD_2PI; }
 
     // Positions
     _set_Geocentric_Position( Lat_geocentric, tmp_lon_geoc, 
-                               Radius_to_vehicle );
+                             Radius_to_vehicle );
     _set_Geodetic_Position( Latitude, tmp_lon, Altitude );
     _set_Euler_Angles( Phi, Theta, Psi );
 
-    _set_Altitude_AGL( Altitude-Runway_altitude );
+    _set_Altitude_AGL( Altitude - Runway_altitude );
 
     // Miscellaneous quantities
     _set_T_Local_to_Body(T_local_to_body_m);
@@ -542,165 +549,196 @@ bool FGLaRCsim::copy_from_LaRCsim() {
     //        get_sin_longitude(), get_cos_longitude());
 
     _set_Climb_Rate( -1 * V_down );
+    // cout << "climb rate = " << -V_down * 60 << endl;
+
+    if ( !strcmp(aero->getStringValue(), "uiuc") ) {
+       if (pilot_elev_no) {
+           globals->get_controls()->set_elevator(Long_control);
+           globals->get_controls()->set_elevator_trim(Long_trim);
+           //      controls.set_elevator(Long_control);
+           //      controls.set_elevator_trim(Long_trim);
+        }
+       if (pilot_ail_no) {
+            globals->get_controls()->set_aileron(Lat_control);
+            //   controls.set_aileron(Lat_control);
+        }
+       if (pilot_rud_no) {
+            globals->get_controls()->set_rudder(Rudder_pedal);
+            //   controls.set_rudder(Rudder_pedal);
+        }
+       if (Throttle_pct_input) {
+            globals->get_controls()->set_throttle(0,Throttle_pct);
+            //   controls.set_throttle(0,Throttle_pct);
+        }
+    }
 
     return true;
 }
 
 
 void FGLaRCsim::set_ls(void) {
-   Phi=lsic->GetRollAngleRadIC();
-   Theta=lsic->GetPitchAngleRadIC();
-   Psi=lsic->GetHeadingRadIC();
-   V_north=lsic->GetVnorthFpsIC();
-   V_east=lsic->GetVeastFpsIC();
-   V_down=lsic->GetVdownFpsIC();
-   Altitude=lsic->GetAltitudeFtIC();
-   Latitude=lsic->GetLatitudeGDRadIC();
-   Longitude=lsic->GetLongitudeRadIC();
-   Runway_altitude=lsic->GetRunwayAltitudeFtIC();
-   V_north_airmass = lsic->GetVnorthAirmassFpsIC();
-   V_east_airmass = lsic->GetVeastAirmassFpsIC();
-   V_down_airmass = lsic->GetVdownAirmassFpsIC();
-   ls_loop(0.0,-1);
-   copy_from_LaRCsim();
-   FG_LOG( FG_FLIGHT, FG_INFO, "  FGLaRCsim::set_ls(): "  );
-   FG_LOG( FG_FLIGHT, FG_INFO, "     Phi: " <<  Phi  );
-   FG_LOG( FG_FLIGHT, FG_INFO, "     Theta: " <<  Theta  );
-   FG_LOG( FG_FLIGHT, FG_INFO, "     Psi: " <<  Psi  );
-   FG_LOG( FG_FLIGHT, FG_INFO, "     V_north: " <<  V_north  );
-   FG_LOG( FG_FLIGHT, FG_INFO, "     V_east: " <<  V_east  );
-   FG_LOG( FG_FLIGHT, FG_INFO, "     V_down: " <<  V_down  );
-   FG_LOG( FG_FLIGHT, FG_INFO, "     Altitude: " <<  Altitude  );
-   FG_LOG( FG_FLIGHT, FG_INFO, "     Latitude: " <<  Latitude  );
-   FG_LOG( FG_FLIGHT, FG_INFO, "     Longitude: " <<  Longitude  );
-   FG_LOG( FG_FLIGHT, FG_INFO, "     Runway_altitude: " <<  Runway_altitude  );
-   FG_LOG( FG_FLIGHT, FG_INFO, "     V_north_airmass: " <<  V_north_airmass  );
-   FG_LOG( FG_FLIGHT, FG_INFO, "     V_east_airmass: " <<  V_east_airmass  );
-   FG_LOG( FG_FLIGHT, FG_INFO, "     V_down_airmass: " <<  V_down_airmass  );
-}  
-
-    //Positions
+    Phi=lsic->GetRollAngleRadIC();
+    Theta=lsic->GetPitchAngleRadIC();
+    Psi=lsic->GetHeadingRadIC();
+    V_north=lsic->GetVnorthFpsIC();
+    V_east=lsic->GetVeastFpsIC();
+    V_down=lsic->GetVdownFpsIC();
+    Altitude=lsic->GetAltitudeFtIC();
+    Latitude=lsic->GetLatitudeGDRadIC();
+    Longitude=lsic->GetLongitudeRadIC();
+    Runway_altitude=lsic->GetRunwayAltitudeFtIC();
+    V_north_airmass = lsic->GetVnorthAirmassFpsIC() * -1;
+    V_east_airmass = lsic->GetVeastAirmassFpsIC() * -1;
+    V_down_airmass = lsic->GetVdownAirmassFpsIC() * -1;
+    ls_loop(0.0,-1);
+    copy_from_LaRCsim();
+}
+
+void FGLaRCsim::snap_shot(void) {
+    lsic->SetLatitudeGDRadIC( get_Latitude() );
+    lsic->SetLongitudeRadIC( get_Longitude() );
+    lsic->SetAltitudeFtIC( get_Altitude() );
+    lsic->SetRunwayAltitudeFtIC( get_Runway_altitude() );
+    lsic->SetVtrueFpsIC( get_V_rel_wind() );
+    lsic->SetPitchAngleRadIC( get_Theta() );
+    lsic->SetRollAngleRadIC( get_Phi() );
+    lsic->SetHeadingRadIC( get_Psi() );
+    lsic->SetClimbRateFpsIC( get_Climb_Rate() );
+    lsic->SetVNEDAirmassFpsIC( get_V_north_airmass(),
+                              get_V_east_airmass(),
+                              get_V_down_airmass() );
+}                              
+
+//Positions
 void FGLaRCsim::set_Latitude(double lat) {
-  FG_LOG( FG_FLIGHT, FG_INFO, "FGLaRCsim::set_Latitude: " << lat  );
-  lsic->SetLatitudeGDRadIC(lat);
-  set_ls();
-  copy_from_LaRCsim(); //update the bus
-}  
+    SG_LOG( SG_FLIGHT, SG_INFO, "FGLaRCsim::set_Latitude: " << lat  );
+    snap_shot();
+    lsic->SetLatitudeGDRadIC(lat);
+    set_ls();
+    copy_from_LaRCsim(); //update the bus
+}
 
 void FGLaRCsim::set_Longitude(double lon) {
-  FG_LOG( FG_FLIGHT, FG_INFO, "FGLaRCsim::set_Longitude: " << lon  );
-  lsic->SetLongitudeRadIC(lon);
-  set_ls();
-  copy_from_LaRCsim(); //update the bus
-}  
+    SG_LOG( SG_FLIGHT, SG_INFO, "FGLaRCsim::set_Longitude: " << lon  );
+    snap_shot();
+    lsic->SetLongitudeRadIC(lon);
+    set_ls();
+    copy_from_LaRCsim(); //update the bus
+}
 
 void FGLaRCsim::set_Altitude(double alt) {
-  FG_LOG( FG_FLIGHT, FG_INFO, "FGLaRCsim::set_Altitude: " << alt  );
-  lsic->SetAltitudeFtIC(alt);
-  set_ls();
-  copy_from_LaRCsim(); //update the bus
+    SG_LOG( SG_FLIGHT, SG_INFO, "FGLaRCsim::set_Altitude: " << alt  );
+    snap_shot();
+    lsic->SetAltitudeFtIC(alt);
+    set_ls();
+    copy_from_LaRCsim(); //update the bus
 }
-  
+
 void FGLaRCsim::set_V_calibrated_kts(double vc) {
-  FG_LOG( FG_FLIGHT, FG_INFO, "FGLaRCsim::set_V_calibrated_kts: " << vc  );
-  lsic->SetVcalibratedKtsIC(vc);
-  set_ls();
-  copy_from_LaRCsim(); //update the bus
-}  
+    SG_LOG( SG_FLIGHT, SG_INFO, 
+           "FGLaRCsim::set_V_calibrated_kts: " << vc  );
+    snap_shot();
+    lsic->SetVcalibratedKtsIC(vc);
+    set_ls();
+    copy_from_LaRCsim(); //update the bus
+}
 
 void FGLaRCsim::set_Mach_number(double mach) {
-  FG_LOG( FG_FLIGHT, FG_INFO, "FGLaRCsim::set_Mach_number: " << mach  );
-  lsic->SetMachIC(mach);
-  set_ls();
-  copy_from_LaRCsim(); //update the bus
-}  
+    SG_LOG( SG_FLIGHT, SG_INFO, "FGLaRCsim::set_Mach_number: " << mach  );
+    snap_shot();
+    lsic->SetMachIC(mach);
+    set_ls();
+    copy_from_LaRCsim(); //update the bus
+}
 
 void FGLaRCsim::set_Velocities_Local( double north, double east, double down ){
- FG_LOG( FG_FLIGHT, FG_INFO, "FGLaRCsim::set_Velocities_local: " 
-                     << north << "  " << east << "  " << down   );
- lsic->SetVnorthFpsIC(north);
- lsic->SetVeastFpsIC(east);
- lsic->SetVdownFpsIC(down);
- set_ls();
- copy_from_LaRCsim(); //update the bus
-}  
+    SG_LOG( SG_FLIGHT, SG_INFO, "FGLaRCsim::set_Velocities_local: " 
+           << north << "  " << east << "  " << down   );
+    snap_shot();
+    lsic->SetVNEDFpsIC(north, east, down);
+    set_ls();
+    copy_from_LaRCsim(); //update the bus
+}
 
 void FGLaRCsim::set_Velocities_Wind_Body( double u, double v, double w){
-  FG_LOG( FG_FLIGHT, FG_INFO, "FGLaRCsim::set_Velocities_Wind_Body: " 
-                     << u << "  " << v << "  " << w   );
-
- lsic->SetUBodyFpsIC(u);
- lsic->SetVBodyFpsIC(v);
- lsic->SetWBodyFpsIC(w);
- set_ls();
- copy_from_LaRCsim(); //update the bus
-} 
+    SG_LOG( SG_FLIGHT, SG_INFO, "FGLaRCsim::set_Velocities_Wind_Body: " 
+           << u << "  " << v << "  " << w   );
+    snap_shot();
+    lsic->SetUVWFpsIC(u,v,w);
+    set_ls();
+    copy_from_LaRCsim(); //update the bus
+}
 
 //Euler angles 
 void FGLaRCsim::set_Euler_Angles( double phi, double theta, double psi ) {
-  FG_LOG( FG_FLIGHT, FG_INFO, "FGLaRCsim::set_Euler_angles: " 
-                     << phi << "  " << theta << "  " << psi   );
-
- lsic->SetPitchAngleRadIC(theta);
- lsic->SetRollAngleRadIC(phi);
- lsic->SetHeadingRadIC(psi);
- set_ls();
- copy_from_LaRCsim(); //update the bus 
-}  
+    SG_LOG( SG_FLIGHT, SG_INFO, "FGLaRCsim::set_Euler_angles: " 
+           << phi << "  " << theta << "  " << psi   );
+
+    snap_shot();
+    lsic->SetPitchAngleRadIC(theta);
+    lsic->SetRollAngleRadIC(phi);
+    lsic->SetHeadingRadIC(psi);
+    set_ls();
+    copy_from_LaRCsim(); //update the bus
+}
 
 //Flight Path
 void FGLaRCsim::set_Climb_Rate( double roc) {
-  FG_LOG( FG_FLIGHT, FG_INFO, "FGLaRCsim::set_Climb_rate: " << roc  );
-  lsic->SetClimbRateFpsIC(roc);
-  set_ls();
-  copy_from_LaRCsim(); //update the bus 
-}  
+    SG_LOG( SG_FLIGHT, SG_INFO, "FGLaRCsim::set_Climb_rate: " << roc  );
+    snap_shot();
+    lsic->SetClimbRateFpsIC(roc);
+    set_ls();
+    copy_from_LaRCsim(); //update the bus
+}
 
 void FGLaRCsim::set_Gamma_vert_rad( double gamma) {
-  FG_LOG( FG_FLIGHT, FG_INFO, "FGLaRCsim::set_Gamma_vert_rad: " << gamma  );
-  lsic->SetFlightPathAngleRadIC(gamma);
-  set_ls();
-  copy_from_LaRCsim(); //update the bus  
-}  
-
-void FGLaRCsim::set_Runway_altitude(double ralt) {
-  FG_LOG( FG_FLIGHT, FG_INFO, "FGLaRCsim::set_Runway_altitude: " << ralt  );
-  lsic->SetRunwayAltitudeFtIC(ralt);
-  set_ls();
-  copy_from_LaRCsim(); //update the bus 
-} 
+    SG_LOG( SG_FLIGHT, SG_INFO, "FGLaRCsim::set_Gamma_vert_rad: " << gamma  );
+    snap_shot();
+    lsic->SetFlightPathAngleRadIC(gamma);
+    set_ls();
+    copy_from_LaRCsim(); //update the bus
+}
 
 void FGLaRCsim::set_AltitudeAGL(double altagl) {
-  FG_LOG( FG_FLIGHT, FG_INFO, "FGLaRCsim::set_AltitudeAGL: " << altagl  );
-  lsic->SetAltitudeAGLFtIC(altagl);
-  set_ls();
-  copy_from_LaRCsim();
+    SG_LOG( SG_FLIGHT, SG_INFO, "FGLaRCsim::set_AltitudeAGL: " << altagl  );
+    snap_shot();
+    lsic->SetAltitudeAGLFtIC(altagl);
+    set_ls();
+    copy_from_LaRCsim();
 }
 
+/*  getting a namespace conflict...
 void FGLaRCsim::set_Velocities_Local_Airmass (double wnorth, 
-                                      double weast, 
-                                       double wdown ) {
-     FG_LOG( FG_FLIGHT, FG_INFO, "FGLaRCsim::set_Velocities_Local_Airmass: " 
-                     << wnorth << "  " << weast << "  " << wdown   );
-     _set_Velocities_Local_Airmass( wnorth, weast, wdown );
-     set_ls();
-     copy_from_LaRCsim();
-}     
+                                             double weast, 
+                                             double wdown ) {
+    SG_LOG( SG_FLIGHT, SG_INFO, "FGLaRCsim::set_Velocities_Local_Airmass: " 
+           << wnorth << "  " << weast << "  " << wdown );
+    snap_shot();
+    lsic->SetVNEDAirmassFpsIC( wnorth, weast, wdown );
+    set_ls();
+    copy_from_LaRCsim();
+}
+*/
 
 void FGLaRCsim::set_Static_pressure(double p) { 
-    FG_LOG( FG_FLIGHT, FG_INFO, "FGLaRCsim::set_Static_pressure: " << p  );
-    FG_LOG( FG_FLIGHT, FG_INFO, "LaRCsim does not support externally supplied atmospheric data" );
+    SG_LOG( SG_FLIGHT, SG_INFO, 
+           "FGLaRCsim::set_Static_pressure: " << p  );
+    SG_LOG( SG_FLIGHT, SG_INFO, 
+           "LaRCsim does not support externally supplied atmospheric data" );
 }
 
 void FGLaRCsim::set_Static_temperature(double T) { 
-    FG_LOG( FG_FLIGHT, FG_INFO, "FGLaRCsim::set_Static_temperature: " << T  );
-    FG_LOG( FG_FLIGHT, FG_INFO, "LaRCsim does not support externally supplied atmospheric data" );
+    SG_LOG( SG_FLIGHT, SG_INFO, 
+           "FGLaRCsim::set_Static_temperature: " << T  );
+    SG_LOG( SG_FLIGHT, SG_INFO, 
+           "LaRCsim does not support externally supplied atmospheric data" );
 
 }
-    
-void FGLaRCsim::set_Density(double rho) { 
-    FG_LOG( FG_FLIGHT, FG_INFO, "FGLaRCsim::set_Density: " << rho  );
-    FG_LOG( FG_FLIGHT, FG_INFO, "LaRCsim does not support externally supplied atmospheric data" );
+
+void FGLaRCsim::set_Density(double rho) {
+    SG_LOG( SG_FLIGHT, SG_INFO, "FGLaRCsim::set_Density: " << rho  );
+    SG_LOG( SG_FLIGHT, SG_INFO, 
+           "LaRCsim does not support externally supplied atmospheric data" );
 
 }