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flightgear/FDM/LaRCsim.cxx

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// LaRCsim.cxx -- interface to the LaRCsim flight model
//
// Written by Curtis Olson, started October 1998.
//
// Copyright (C) 1998 Curtis L. Olson - curt@me.umn.edu
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// $Id$
// (Log is kept at end of this file)
#include "LaRCsim.hxx"
#include <Aircraft/aircraft.hxx>
#include <Controls/controls.hxx>
#include <Flight/flight.hxx>
#include <Flight/LaRCsim/ls_cockpit.h>
#include <Flight/LaRCsim/ls_generic.h>
#include <Flight/LaRCsim/ls_interface.h>
// Initialize the LaRCsim flight model, dt is the time increment for
// each subsequent iteration through the EOM
int fgLaRCsimInit(double dt) {
ls_toplevel_init(dt);
return(1);
}
// Run an iteration of the EOM (equations of motion)
int fgLaRCsimUpdate(fgFLIGHT *f, int multiloop) {
double save_alt = 0.0;
// lets try to avoid really screwing up the LaRCsim model
if ( FG_Altitude < -9000 ) {
save_alt = FG_Altitude;
FG_Altitude = 0;
}
// translate FG to LaRCsim structure
fgFlight_2_LaRCsim(f);
// printf("FG_Altitude = %.2f\n", FG_Altitude * 0.3048);
// printf("Altitude = %.2f\n", Altitude * 0.3048);
// printf("Radius to Vehicle = %.2f\n", Radius_to_vehicle * 0.3048);
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
fgLaRCsim_2_Flight(f);
// but lets restore our original bogus altitude when we are done
if ( save_alt < -9000 ) {
FG_Altitude = save_alt;
}
return 1;
}
// Convert from the fgFLIGHT struct to the LaRCsim generic_ struct
int fgFlight_2_LaRCsim (fgFLIGHT *f) {
Lat_control = controls.get_aileron();
Long_control = controls.get_elevator();
Long_trim = controls.get_elevator_trim();
Rudder_pedal = controls.get_rudder();
Throttle_pct = controls.get_throttle( 0 );
Brake_pct = controls.get_brake( 0 );
Mass = FG_Mass;
I_xx = FG_I_xx;
I_yy = FG_I_yy;
I_zz = FG_I_zz;
I_xz = FG_I_xz;
Dx_pilot = FG_Dx_pilot;
Dy_pilot = FG_Dy_pilot;
Dz_pilot = FG_Dz_pilot;
Dx_cg = FG_Dx_cg;
Dy_cg = FG_Dy_cg;
Dz_cg = FG_Dz_cg;
F_X = FG_F_X;
F_Y = FG_F_Y;
F_Z = FG_F_Z;
F_north = FG_F_north;
F_east = FG_F_east;
F_down = FG_F_down;
F_X_aero = FG_F_X_aero;
F_Y_aero = FG_F_Y_aero;
F_Z_aero = FG_F_Z_aero;
F_X_engine = FG_F_X_engine;
F_Y_engine = FG_F_Y_engine;
F_Z_engine = FG_F_Z_engine;
F_X_gear = FG_F_X_gear;
F_Y_gear = FG_F_Y_gear;
F_Z_gear = FG_F_Z_gear;
M_l_rp = FG_M_l_rp;
M_m_rp = FG_M_m_rp;
M_n_rp = FG_M_n_rp;
M_l_cg = FG_M_l_cg;
M_m_cg = FG_M_m_cg;
M_n_cg = FG_M_n_cg;
M_l_aero = FG_M_l_aero;
M_m_aero = FG_M_m_aero;
M_n_aero = FG_M_n_aero;
M_l_engine = FG_M_l_engine;
M_m_engine = FG_M_m_engine;
M_n_engine = FG_M_n_engine;
M_l_gear = FG_M_l_gear;
M_m_gear = FG_M_m_gear;
M_n_gear = FG_M_n_gear;
V_dot_north = FG_V_dot_north;
V_dot_east = FG_V_dot_east;
V_dot_down = FG_V_dot_down;
U_dot_body = FG_U_dot_body;
V_dot_body = FG_V_dot_body;
W_dot_body = FG_W_dot_body;
A_X_cg = FG_A_X_cg;
A_Y_cg = FG_A_Y_cg;
A_Z_cg = FG_A_Z_cg;
A_X_pilot = FG_A_X_pilot;
A_Y_pilot = FG_A_Y_pilot;
A_Z_pilot = FG_A_Z_pilot;
N_X_cg = FG_N_X_cg;
N_Y_cg = FG_N_Y_cg;
N_Z_cg = FG_N_Z_cg;
N_X_pilot = FG_N_X_pilot;
N_Y_pilot = FG_N_Y_pilot;
N_Z_pilot = FG_N_Z_pilot;
P_dot_body = FG_P_dot_body;
Q_dot_body = FG_Q_dot_body;
R_dot_body = FG_R_dot_body;
V_north = FG_V_north;
V_east = FG_V_east;
V_down = FG_V_down;
V_north_rel_ground = FG_V_north_rel_ground;
V_east_rel_ground = FG_V_east_rel_ground;
V_down_rel_ground = FG_V_down_rel_ground;
V_north_airmass = FG_V_north_airmass;
V_east_airmass = FG_V_east_airmass;
V_down_airmass = FG_V_down_airmass;
V_north_rel_airmass = FG_V_north_rel_airmass;
V_east_rel_airmass = FG_V_east_rel_airmass;
V_down_rel_airmass = FG_V_down_rel_airmass;
U_gust = FG_U_gust;
V_gust = FG_V_gust;
W_gust = FG_W_gust;
U_body = FG_U_body;
V_body = FG_V_body;
W_body = FG_W_body;
V_rel_wind = FG_V_rel_wind;
V_true_kts = FG_V_true_kts;
V_rel_ground = FG_V_rel_ground;
V_inertial = FG_V_inertial;
V_ground_speed = FG_V_ground_speed;
V_equiv = FG_V_equiv;
V_equiv_kts = FG_V_equiv_kts;
V_calibrated = FG_V_calibrated;
V_calibrated_kts = FG_V_calibrated_kts;
P_body = FG_P_body;
Q_body = FG_Q_body;
R_body = FG_R_body;
P_local = FG_P_local;
Q_local = FG_Q_local;
R_local = FG_R_local;
P_total = FG_P_total;
Q_total = FG_Q_total;
R_total = FG_R_total;
Phi_dot = FG_Phi_dot;
Theta_dot = FG_Theta_dot;
Psi_dot = FG_Psi_dot;
Latitude_dot = FG_Latitude_dot;
Longitude_dot = FG_Longitude_dot;
Radius_dot = FG_Radius_dot;
Lat_geocentric = FG_Lat_geocentric;
Lon_geocentric = FG_Lon_geocentric;
Radius_to_vehicle = FG_Radius_to_vehicle;
Latitude = FG_Latitude;
Longitude = FG_Longitude;
Altitude = FG_Altitude;
Phi = FG_Phi;
Theta = FG_Theta;
Psi = FG_Psi;
T_local_to_body_11 = FG_T_local_to_body_11;
T_local_to_body_12 = FG_T_local_to_body_12;
T_local_to_body_13 = FG_T_local_to_body_13;
T_local_to_body_21 = FG_T_local_to_body_21;
T_local_to_body_22 = FG_T_local_to_body_22;
T_local_to_body_23 = FG_T_local_to_body_23;
T_local_to_body_31 = FG_T_local_to_body_31;
T_local_to_body_32 = FG_T_local_to_body_32;
T_local_to_body_33 = FG_T_local_to_body_33;
Gravity = FG_Gravity;
Centrifugal_relief = FG_Centrifugal_relief;
Alpha = FG_Alpha;
Beta = FG_Beta;
Alpha_dot = FG_Alpha_dot;
Beta_dot = FG_Beta_dot;
Cos_alpha = FG_Cos_alpha;
Sin_alpha = FG_Sin_alpha;
Cos_beta = FG_Cos_beta;
Sin_beta = FG_Sin_beta;
Cos_phi = FG_Cos_phi;
Sin_phi = FG_Sin_phi;
Cos_theta = FG_Cos_theta;
Sin_theta = FG_Sin_theta;
Cos_psi = FG_Cos_psi;
Sin_psi = FG_Sin_psi;
Gamma_vert_rad = FG_Gamma_vert_rad;
Gamma_horiz_rad = FG_Gamma_horiz_rad;
Sigma = FG_Sigma;
Density = FG_Density;
V_sound = FG_V_sound;
Mach_number = FG_Mach_number;
Static_pressure = FG_Static_pressure;
Total_pressure = FG_Total_pressure;
Impact_pressure = FG_Impact_pressure;
Dynamic_pressure = FG_Dynamic_pressure;
Static_temperature = FG_Static_temperature;
Total_temperature = FG_Total_temperature;
Sea_level_radius = FG_Sea_level_radius;
Earth_position_angle = FG_Earth_position_angle;
Runway_altitude = FG_Runway_altitude;
Runway_latitude = FG_Runway_latitude;
Runway_longitude = FG_Runway_longitude;
Runway_heading = FG_Runway_heading;
Radius_to_rwy = FG_Radius_to_rwy;
D_cg_north_of_rwy = FG_D_cg_north_of_rwy;
D_cg_east_of_rwy = FG_D_cg_east_of_rwy;
D_cg_above_rwy = FG_D_cg_above_rwy;
X_cg_rwy = FG_X_cg_rwy;
Y_cg_rwy = FG_Y_cg_rwy;
H_cg_rwy = FG_H_cg_rwy;
D_pilot_north_of_rwy = FG_D_pilot_north_of_rwy;
D_pilot_east_of_rwy = FG_D_pilot_east_of_rwy;
D_pilot_above_rwy = FG_D_pilot_above_rwy;
X_pilot_rwy = FG_X_pilot_rwy;
Y_pilot_rwy = FG_Y_pilot_rwy;
H_pilot_rwy = FG_H_pilot_rwy;
return( 0 );
}
// Convert from the LaRCsim generic_ struct to the fgFLIGHT struct
int fgLaRCsim_2_Flight (fgFLIGHT *f) {
FG_Mass = Mass;
FG_I_xx = I_xx;
FG_I_yy = I_yy;
FG_I_zz = I_zz;
FG_I_xz = I_xz;
FG_Dx_pilot = Dx_pilot;
FG_Dy_pilot = Dy_pilot;
FG_Dz_pilot = Dz_pilot;
FG_Dx_cg = Dx_cg;
FG_Dy_cg = Dy_cg;
FG_Dz_cg = Dz_cg;
FG_F_X = F_X;
FG_F_Y = F_Y;
FG_F_Z = F_Z;
FG_F_north = F_north;
FG_F_east = F_east;
FG_F_down = F_down;
FG_F_X_aero = F_X_aero;
FG_F_Y_aero = F_Y_aero;
FG_F_Z_aero = F_Z_aero;
FG_F_X_engine = F_X_engine;
FG_F_Y_engine = F_Y_engine;
FG_F_Z_engine = F_Z_engine;
FG_F_X_gear = F_X_gear;
FG_F_Y_gear = F_Y_gear;
FG_F_Z_gear = F_Z_gear;
FG_M_l_rp = M_l_rp;
FG_M_m_rp = M_m_rp;
FG_M_n_rp = M_n_rp;
FG_M_l_cg = M_l_cg;
FG_M_m_cg = M_m_cg;
FG_M_n_cg = M_n_cg;
FG_M_l_aero = M_l_aero;
FG_M_m_aero = M_m_aero;
FG_M_n_aero = M_n_aero;
FG_M_l_engine = M_l_engine;
FG_M_m_engine = M_m_engine;
FG_M_n_engine = M_n_engine;
FG_M_l_gear = M_l_gear;
FG_M_m_gear = M_m_gear;
FG_M_n_gear = M_n_gear;
FG_V_dot_north = V_dot_north;
FG_V_dot_east = V_dot_east;
FG_V_dot_down = V_dot_down;
FG_U_dot_body = U_dot_body;
FG_V_dot_body = V_dot_body;
FG_W_dot_body = W_dot_body;
FG_A_X_cg = A_X_cg;
FG_A_Y_cg = A_Y_cg;
FG_A_Z_cg = A_Z_cg;
FG_A_X_pilot = A_X_pilot;
FG_A_Y_pilot = A_Y_pilot;
FG_A_Z_pilot = A_Z_pilot;
FG_N_X_cg = N_X_cg;
FG_N_Y_cg = N_Y_cg;
FG_N_Z_cg = N_Z_cg;
FG_N_X_pilot = N_X_pilot;
FG_N_Y_pilot = N_Y_pilot;
FG_N_Z_pilot = N_Z_pilot;
FG_P_dot_body = P_dot_body;
FG_Q_dot_body = Q_dot_body;
FG_R_dot_body = R_dot_body;
FG_V_north = V_north;
FG_V_east = V_east;
FG_V_down = V_down;
FG_V_north_rel_ground = V_north_rel_ground;
FG_V_east_rel_ground = V_east_rel_ground;
FG_V_down_rel_ground = V_down_rel_ground;
FG_V_north_airmass = V_north_airmass;
FG_V_east_airmass = V_east_airmass;
FG_V_down_airmass = V_down_airmass;
FG_V_north_rel_airmass = V_north_rel_airmass;
FG_V_east_rel_airmass = V_east_rel_airmass;
FG_V_down_rel_airmass = V_down_rel_airmass;
FG_U_gust = U_gust;
FG_V_gust = V_gust;
FG_W_gust = W_gust;
FG_U_body = U_body;
FG_V_body = V_body;
FG_W_body = W_body;
FG_V_rel_wind = V_rel_wind;
FG_V_true_kts = V_true_kts;
FG_V_rel_ground = V_rel_ground;
FG_V_inertial = V_inertial;
FG_V_ground_speed = V_ground_speed;
FG_V_equiv = V_equiv;
FG_V_equiv_kts = V_equiv_kts;
FG_V_calibrated = V_calibrated;
FG_V_calibrated_kts = V_calibrated_kts;
FG_P_body = P_body;
FG_Q_body = Q_body;
FG_R_body = R_body;
FG_P_local = P_local;
FG_Q_local = Q_local;
FG_R_local = R_local;
FG_P_total = P_total;
FG_Q_total = Q_total;
FG_R_total = R_total;
FG_Phi_dot = Phi_dot;
FG_Theta_dot = Theta_dot;
FG_Psi_dot = Psi_dot;
FG_Latitude_dot = Latitude_dot;
FG_Longitude_dot = Longitude_dot;
FG_Radius_dot = Radius_dot;
FG_Lat_geocentric = Lat_geocentric;
FG_Lon_geocentric = Lon_geocentric;
FG_Radius_to_vehicle = Radius_to_vehicle;
FG_Latitude = Latitude;
FG_Longitude = Longitude;
FG_Altitude = Altitude;
FG_Phi = Phi;
FG_Theta = Theta;
FG_Psi = Psi;
FG_T_local_to_body_11 = T_local_to_body_11;
FG_T_local_to_body_12 = T_local_to_body_12;
FG_T_local_to_body_13 = T_local_to_body_13;
FG_T_local_to_body_21 = T_local_to_body_21;
FG_T_local_to_body_22 = T_local_to_body_22;
FG_T_local_to_body_23 = T_local_to_body_23;
FG_T_local_to_body_31 = T_local_to_body_31;
FG_T_local_to_body_32 = T_local_to_body_32;
FG_T_local_to_body_33 = T_local_to_body_33;
FG_Gravity = Gravity;
FG_Centrifugal_relief = Centrifugal_relief;
FG_Alpha = Alpha;
FG_Beta = Beta;
FG_Alpha_dot = Alpha_dot;
FG_Beta_dot = Beta_dot;
FG_Cos_alpha = Cos_alpha;
FG_Sin_alpha = Sin_alpha;
FG_Cos_beta = Cos_beta;
FG_Sin_beta = Sin_beta;
FG_Cos_phi = Cos_phi;
FG_Sin_phi = Sin_phi;
FG_Cos_theta = Cos_theta;
FG_Sin_theta = Sin_theta;
FG_Cos_psi = Cos_psi;
FG_Sin_psi = Sin_psi;
FG_Gamma_vert_rad = Gamma_vert_rad;
FG_Gamma_horiz_rad = Gamma_horiz_rad;
FG_Sigma = Sigma;
FG_Density = Density;
FG_V_sound = V_sound;
FG_Mach_number = Mach_number;
FG_Static_pressure = Static_pressure;
FG_Total_pressure = Total_pressure;
FG_Impact_pressure = Impact_pressure;
FG_Dynamic_pressure = Dynamic_pressure;
FG_Static_temperature = Static_temperature;
FG_Total_temperature = Total_temperature;
FG_Sea_level_radius = Sea_level_radius;
FG_Earth_position_angle = Earth_position_angle;
FG_Runway_altitude = Runway_altitude;
FG_Runway_latitude = Runway_latitude;
FG_Runway_longitude = Runway_longitude;
FG_Runway_heading = Runway_heading;
FG_Radius_to_rwy = Radius_to_rwy;
FG_D_cg_north_of_rwy = D_cg_north_of_rwy;
FG_D_cg_east_of_rwy = D_cg_east_of_rwy;
FG_D_cg_above_rwy = D_cg_above_rwy;
FG_X_cg_rwy = X_cg_rwy;
FG_Y_cg_rwy = Y_cg_rwy;
FG_H_cg_rwy = H_cg_rwy;
FG_D_pilot_north_of_rwy = D_pilot_north_of_rwy;
FG_D_pilot_east_of_rwy = D_pilot_east_of_rwy;
FG_D_pilot_above_rwy = D_pilot_above_rwy;
FG_X_pilot_rwy = X_pilot_rwy;
FG_Y_pilot_rwy = Y_pilot_rwy;
FG_H_pilot_rwy = H_pilot_rwy;
return ( 0 );
}
// $Log$
// Revision 1.3 1998/10/25 14:08:43 curt
// Turned "struct fgCONTROLS" into a class, with inlined accessor functions.
//
// Revision 1.2 1998/10/17 01:34:11 curt
// C++ ifying ...
//
// Revision 1.1 1998/10/17 00:43:58 curt
// Initial revision.
//
//
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