noinst_LIBRARIES = libFlight.a
-libFlight_a_SOURCES = flight.c flight.h
+libFlight_a_SOURCES = flight.cxx flight.hxx
INCLUDES += -I$(top_builddir) -I$(top_builddir)/Lib -I$(top_builddir)/Simulator
+++ /dev/null
-// flight.c -- a general interface to the various flight models
-//
-// Written by Curtis Olson, started May 1997.
-//
-// Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
-//
-// 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 <stdio.h>
-
-#include <Debug/fg_debug.h>
-#include <Flight/flight.h>
-#include <Flight/LaRCsim/ls_interface.h>
-#include <Include/fg_constants.h>
-#include <Math/fg_geodesy.h>
-
-
-fgFLIGHT cur_flight_params;
-
-
-/* Initialize the flight model parameters */
-int fgFlightModelInit(int model, fgFLIGHT *f, double dt) {
- double save_alt = 0.0;
- int result;
-
- fgPrintf(FG_FLIGHT,FG_INFO,"Initializing flight model\n");
-
- if ( model == FG_SLEW ) {
- // fgSlewInit(dt);
- } else if ( model == FG_LARCSIM ) {
- /* lets try to avoid really screwing up the LaRCsim model */
- if ( FG_Altitude < -9000 ) {
- save_alt = FG_Altitude;
- FG_Altitude = 0;
- }
-
- fgFlight_2_LaRCsim(f); /* translate FG to LaRCsim structure */
- fgLaRCsimInit(dt);
- fgPrintf( FG_FLIGHT, FG_INFO, "FG pos = %.2f\n", FG_Latitude );
- fgLaRCsim_2_Flight(f); /* translate LaRCsim back to FG structure */
-
- /* but lets restore our original bogus altitude when we are done */
- if ( save_alt < -9000 ) {
- FG_Altitude = save_alt;
- }
- } else {
- fgPrintf( FG_FLIGHT, FG_WARN,
- "Unimplemented flight model == %d\n", model );
- }
-
- result = 1;
-
- return(result);
-}
-
-
-/* Run multiloop iterations of the flight model */
-int fgFlightModelUpdate(int model, fgFLIGHT *f, int multiloop) {
- double time_step, start_elev, end_elev;
- int result;
- // printf("Altitude = %.2f\n", FG_Altitude * 0.3048);
-
- time_step = (1.0 / DEFAULT_MODEL_HZ) * multiloop;
- start_elev = FG_Altitude;
-
- if ( model == FG_SLEW ) {
- // fgSlewUpdate(f, multiloop);
- } else if ( model == FG_LARCSIM ) {
- fgLaRCsimUpdate(f, multiloop);
- } else {
- fgPrintf( FG_FLIGHT, FG_WARN,
- "Unimplemented flight model == %d\n", model );
- }
-
- end_elev = FG_Altitude;
-
- FG_Climb_Rate = (end_elev - start_elev) / time_step; /* feet per second */
-
- result = 1;
-
- return(result);
-}
-
-
-/* Set the altitude (force) */
-int fgFlightModelSetAltitude(int model, fgFLIGHT *f, double alt_meters) {
- double sea_level_radius_meters;
- double lat_geoc;
- // Set the FG variables first
- fgGeodToGeoc( FG_Latitude, alt_meters,
- &sea_level_radius_meters, &lat_geoc);
-
- FG_Altitude = alt_meters * METER_TO_FEET;
- FG_Radius_to_vehicle = FG_Altitude +
- (sea_level_radius_meters * METER_TO_FEET);
-
- /* additional work needed for some flight models */
- if ( model == FG_LARCSIM ) {
- ls_ForceAltitude(FG_Altitude);
- }
-
-}
-
-
-// $Log$
-// Revision 1.19 1998/09/29 14:57:38 curt
-// c++-ified comments.
-//
-// Revision 1.18 1998/09/29 02:02:40 curt
-// Added a rate of climb calculation.
-//
-// Revision 1.17 1998/08/24 20:09:07 curt
-// .
-//
-// Revision 1.16 1998/08/22 14:49:55 curt
-// Attempting to iron out seg faults and crashes.
-// Did some shuffling to fix a initialization order problem between view
-// position, scenery elevation.
-//
-// Revision 1.15 1998/07/30 23:44:36 curt
-// Beginning to add support for multiple flight models.
-//
-// Revision 1.14 1998/07/12 03:08:27 curt
-// Added fgFlightModelSetAltitude() to force the altitude to something
-// other than the current altitude. LaRCsim doesn't let you do this by just
-// changing FG_Altitude.
-//
-// Revision 1.13 1998/04/25 22:06:28 curt
-// Edited cvs log messages in source files ... bad bad bad!
-//
-// Revision 1.12 1998/04/21 16:59:33 curt
-// Integrated autopilot.
-// Prepairing for C++ integration.
-//
-// Revision 1.11 1998/04/18 04:14:04 curt
-// Moved fg_debug.c to it's own library.
-//
-// Revision 1.10 1998/02/07 15:29:37 curt
-// Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
-// <chotchkiss@namg.us.anritsu.com>
-//
-// Revision 1.9 1998/01/27 00:47:53 curt
-// Incorporated Paul Bleisch's <pbleisch@acm.org> new debug message
-// system and commandline/config file processing code.
-//
-// Revision 1.8 1998/01/19 19:27:03 curt
-// Merged in make system changes from Bob Kuehne <rpk@sgi.com>
-// This should simplify things tremendously.
-//
-// Revision 1.7 1998/01/19 18:40:23 curt
-// Tons of little changes to clean up the code and to remove fatal errors
-// when building with the c++ compiler.
-//
-// Revision 1.6 1998/01/19 18:35:43 curt
-// Minor tweaks and fixes for cygwin32.
-//
-// Revision 1.5 1997/12/30 20:47:37 curt
-// Integrated new event manager with subsystem initializations.
-//
-// Revision 1.4 1997/12/10 22:37:42 curt
-// Prepended "fg" on the name of all global structures that didn't have it yet.
-// i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
-//
-// Revision 1.3 1997/08/27 03:30:04 curt
-// Changed naming scheme of basic shared structures.
-//
-// Revision 1.2 1997/05/29 22:39:57 curt
-// Working on incorporating the LaRCsim flight model.
-//
-// Revision 1.1 1997/05/29 02:35:04 curt
-// Initial revision.
-//
--- /dev/null
+// flight.c -- a general interface to the various flight models
+//
+// Written by Curtis Olson, started May 1997.
+//
+// Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
+//
+// 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 <stdio.h>
+
+#include <Debug/fg_debug.h>
+#include <Flight/flight.h>
+#include <Flight/LaRCsim/ls_interface.h>
+#include <Include/fg_constants.h>
+#include <Math/fg_geodesy.h>
+
+
+fgFLIGHT cur_flight_params;
+
+
+/* Initialize the flight model parameters */
+int fgFlightModelInit(int model, fgFLIGHT *f, double dt) {
+ double save_alt = 0.0;
+ int result;
+
+ fgPrintf(FG_FLIGHT,FG_INFO,"Initializing flight model\n");
+
+ if ( model == FG_SLEW ) {
+ // fgSlewInit(dt);
+ } else if ( model == FG_LARCSIM ) {
+ /* lets try to avoid really screwing up the LaRCsim model */
+ if ( FG_Altitude < -9000 ) {
+ save_alt = FG_Altitude;
+ FG_Altitude = 0;
+ }
+
+ fgFlight_2_LaRCsim(f); /* translate FG to LaRCsim structure */
+ fgLaRCsimInit(dt);
+ fgPrintf( FG_FLIGHT, FG_INFO, "FG pos = %.2f\n", FG_Latitude );
+ fgLaRCsim_2_Flight(f); /* translate LaRCsim back to FG structure */
+
+ /* but lets restore our original bogus altitude when we are done */
+ if ( save_alt < -9000 ) {
+ FG_Altitude = save_alt;
+ }
+ } else {
+ fgPrintf( FG_FLIGHT, FG_WARN,
+ "Unimplemented flight model == %d\n", model );
+ }
+
+ result = 1;
+
+ return(result);
+}
+
+
+/* Run multiloop iterations of the flight model */
+int fgFlightModelUpdate(int model, fgFLIGHT *f, int multiloop) {
+ double time_step, start_elev, end_elev;
+ int result;
+ // printf("Altitude = %.2f\n", FG_Altitude * 0.3048);
+
+ time_step = (1.0 / DEFAULT_MODEL_HZ) * multiloop;
+ start_elev = FG_Altitude;
+
+ if ( model == FG_SLEW ) {
+ // fgSlewUpdate(f, multiloop);
+ } else if ( model == FG_LARCSIM ) {
+ fgLaRCsimUpdate(f, multiloop);
+ } else {
+ fgPrintf( FG_FLIGHT, FG_WARN,
+ "Unimplemented flight model == %d\n", model );
+ }
+
+ end_elev = FG_Altitude;
+
+ FG_Climb_Rate = (end_elev - start_elev) / time_step; /* feet per second */
+
+ result = 1;
+
+ return(result);
+}
+
+
+/* Set the altitude (force) */
+int fgFlightModelSetAltitude(int model, fgFLIGHT *f, double alt_meters) {
+ double sea_level_radius_meters;
+ double lat_geoc;
+ // Set the FG variables first
+ fgGeodToGeoc( FG_Latitude, alt_meters,
+ &sea_level_radius_meters, &lat_geoc);
+
+ FG_Altitude = alt_meters * METER_TO_FEET;
+ FG_Radius_to_vehicle = FG_Altitude +
+ (sea_level_radius_meters * METER_TO_FEET);
+
+ /* additional work needed for some flight models */
+ if ( model == FG_LARCSIM ) {
+ ls_ForceAltitude(FG_Altitude);
+ }
+
+}
+
+
+// $Log$
+// Revision 1.1 1998/10/16 20:16:41 curt
+// Renamed flight.[ch] to flight.[ch]xx
+//
+// Revision 1.19 1998/09/29 14:57:38 curt
+// c++-ified comments.
+//
+// Revision 1.18 1998/09/29 02:02:40 curt
+// Added a rate of climb calculation.
+//
+// Revision 1.17 1998/08/24 20:09:07 curt
+// .
+//
+// Revision 1.16 1998/08/22 14:49:55 curt
+// Attempting to iron out seg faults and crashes.
+// Did some shuffling to fix a initialization order problem between view
+// position, scenery elevation.
+//
+// Revision 1.15 1998/07/30 23:44:36 curt
+// Beginning to add support for multiple flight models.
+//
+// Revision 1.14 1998/07/12 03:08:27 curt
+// Added fgFlightModelSetAltitude() to force the altitude to something
+// other than the current altitude. LaRCsim doesn't let you do this by just
+// changing FG_Altitude.
+//
+// Revision 1.13 1998/04/25 22:06:28 curt
+// Edited cvs log messages in source files ... bad bad bad!
+//
+// Revision 1.12 1998/04/21 16:59:33 curt
+// Integrated autopilot.
+// Prepairing for C++ integration.
+//
+// Revision 1.11 1998/04/18 04:14:04 curt
+// Moved fg_debug.c to it's own library.
+//
+// Revision 1.10 1998/02/07 15:29:37 curt
+// Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
+// <chotchkiss@namg.us.anritsu.com>
+//
+// Revision 1.9 1998/01/27 00:47:53 curt
+// Incorporated Paul Bleisch's <pbleisch@acm.org> new debug message
+// system and commandline/config file processing code.
+//
+// Revision 1.8 1998/01/19 19:27:03 curt
+// Merged in make system changes from Bob Kuehne <rpk@sgi.com>
+// This should simplify things tremendously.
+//
+// Revision 1.7 1998/01/19 18:40:23 curt
+// Tons of little changes to clean up the code and to remove fatal errors
+// when building with the c++ compiler.
+//
+// Revision 1.6 1998/01/19 18:35:43 curt
+// Minor tweaks and fixes for cygwin32.
+//
+// Revision 1.5 1997/12/30 20:47:37 curt
+// Integrated new event manager with subsystem initializations.
+//
+// Revision 1.4 1997/12/10 22:37:42 curt
+// Prepended "fg" on the name of all global structures that didn't have it yet.
+// i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
+//
+// Revision 1.3 1997/08/27 03:30:04 curt
+// Changed naming scheme of basic shared structures.
+//
+// Revision 1.2 1997/05/29 22:39:57 curt
+// Working on incorporating the LaRCsim flight model.
+//
+// Revision 1.1 1997/05/29 02:35:04 curt
+// Initial revision.
+//
+++ /dev/null
-// flight.h -- define shared flight model parameters
-//
-// Written by Curtis Olson, started May 1997.
-//
-// Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
-//
-// 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)
-
-
-#ifndef _FLIGHT_H
-#define _FLIGHT_H
-
-
-#include <Flight/Slew/slew.h>
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/* Define the various supported flight models (most not yet implemented) */
-#define FG_SLEW 0 /* Slew (in MS terminology) */
-#define FG_LARCSIM 1 /* The only "real" model that is currently
- implemented */
-#define FG_ACM 2
-#define FG_SUPER_SONIC 3
-#define FG_HELICOPTER 4
-#define FG_AUTOGYRO 5
-#define FG_BALLOON 6
-#define FG_PARACHUTE 7
-#define FG_EXTERN_GPS 8 /* Driven via a serially connected GPS */
-#define FG_EXTERN_NET 9 /* Driven externally via the net */
-#define FG_EXTERN_NASA 10 /* Track the space shuttle ? */
-
-
-typedef double FG_VECTOR_3[3];
-
-/* This is based heavily on LaRCsim/ls_generic.h */
-typedef struct {
-
-/*================== Mass properties and geometry values ==================*/
-
- double mass, i_xx, i_yy, i_zz, i_xz; /* Inertias */
-#define FG_Mass f->mass
-#define FG_I_xx f->i_xx
-#define FG_I_yy f->i_yy
-#define FG_I_zz f->i_zz
-#define FG_I_xz f->i_xz
-
- FG_VECTOR_3 d_pilot_rp_body_v; /* Pilot location rel to ref pt */
-#define FG_D_pilot_rp_body_v f->d_pilot_rp_body_v
-#define FG_Dx_pilot f->d_pilot_rp_body_v[0]
-#define FG_Dy_pilot f->d_pilot_rp_body_v[1]
-#define FG_Dz_pilot f->d_pilot_rp_body_v[2]
-
- FG_VECTOR_3 d_cg_rp_body_v; /* CG position w.r.t. ref. point */
-#define FG_D_cg_rp_body_v f->d_cg_rp_body_v
-#define FG_Dx_cg f->d_cg_rp_body_v[0]
-#define FG_Dy_cg f->d_cg_rp_body_v[1]
-#define FG_Dz_cg f->d_cg_rp_body_v[2]
-
-/*================================ Forces =================================*/
-
- FG_VECTOR_3 f_body_total_v;
-#define FG_F_body_total_v f->f_body_total_v
-#define FG_F_X f->f_body_total_v[0]
-#define FG_F_Y f->f_body_total_v[1]
-#define FG_F_Z f->f_body_total_v[2]
-
- FG_VECTOR_3 f_local_total_v;
-#define FG_F_local_total_v f->f_local_total_v
-#define FG_F_north f->f_local_total_v[0]
-#define FG_F_east f->f_local_total_v[1]
-#define FG_F_down f->f_local_total_v[2]
-
- FG_VECTOR_3 f_aero_v;
-#define FG_F_aero_v f->f_aero_v
-#define FG_F_X_aero f->f_aero_v[0]
-#define FG_F_Y_aero f->f_aero_v[1]
-#define FG_F_Z_aero f->f_aero_v[2]
-
- FG_VECTOR_3 f_engine_v;
-#define FG_F_engine_v f->f_engine_v
-#define FG_F_X_engine f->f_engine_v[0]
-#define FG_F_Y_engine f->f_engine_v[1]
-#define FG_F_Z_engine f->f_engine_v[2]
-
- FG_VECTOR_3 f_gear_v;
-#define FG_F_gear_v f->f_gear_v
-#define FG_F_X_gear f->f_gear_v[0]
-#define FG_F_Y_gear f->f_gear_v[1]
-#define FG_F_Z_gear f->f_gear_v[2]
-
-/*================================ Moments ================================*/
-
- FG_VECTOR_3 m_total_rp_v;
-#define FG_M_total_rp_v f->m_total_rp_v
-#define FG_M_l_rp f->m_total_rp_v[0]
-#define FG_M_m_rp f->m_total_rp_v[1]
-#define FG_M_n_rp f->m_total_rp_v[2]
-
- FG_VECTOR_3 m_total_cg_v;
-#define FG_M_total_cg_v f->m_total_cg_v
-#define FG_M_l_cg f->m_total_cg_v[0]
-#define FG_M_m_cg f->m_total_cg_v[1]
-#define FG_M_n_cg f->m_total_cg_v[2]
-
- FG_VECTOR_3 m_aero_v;
-#define FG_M_aero_v f->m_aero_v
-#define FG_M_l_aero f->m_aero_v[0]
-#define FG_M_m_aero f->m_aero_v[1]
-#define FG_M_n_aero f->m_aero_v[2]
-
- FG_VECTOR_3 m_engine_v;
-#define FG_M_engine_v f->m_engine_v
-#define FG_M_l_engine f->m_engine_v[0]
-#define FG_M_m_engine f->m_engine_v[1]
-#define FG_M_n_engine f->m_engine_v[2]
-
- FG_VECTOR_3 m_gear_v;
-#define FG_M_gear_v f->m_gear_v
-#define FG_M_l_gear f->m_gear_v[0]
-#define FG_M_m_gear f->m_gear_v[1]
-#define FG_M_n_gear f->m_gear_v[2]
-
-/*============================== Accelerations ============================*/
-
- FG_VECTOR_3 v_dot_local_v;
-#define FG_V_dot_local_v f->v_dot_local_v
-#define FG_V_dot_north f->v_dot_local_v[0]
-#define FG_V_dot_east f->v_dot_local_v[1]
-#define FG_V_dot_down f->v_dot_local_v[2]
-
- FG_VECTOR_3 v_dot_body_v;
-#define FG_V_dot_body_v f->v_dot_body_v
-#define FG_U_dot_body f->v_dot_body_v[0]
-#define FG_V_dot_body f->v_dot_body_v[1]
-#define FG_W_dot_body f->v_dot_body_v[2]
-
- FG_VECTOR_3 a_cg_body_v;
-#define FG_A_cg_body_v f->a_cg_body_v
-#define FG_A_X_cg f->a_cg_body_v[0]
-#define FG_A_Y_cg f->a_cg_body_v[1]
-#define FG_A_Z_cg f->a_cg_body_v[2]
-
- FG_VECTOR_3 a_pilot_body_v;
-#define FG_A_pilot_body_v f->a_pilot_body_v
-#define FG_A_X_pilot f->a_pilot_body_v[0]
-#define FG_A_Y_pilot f->a_pilot_body_v[1]
-#define FG_A_Z_pilot f->a_pilot_body_v[2]
-
- FG_VECTOR_3 n_cg_body_v;
-#define FG_N_cg_body_v f->n_cg_body_v
-#define FG_N_X_cg f->n_cg_body_v[0]
-#define FG_N_Y_cg f->n_cg_body_v[1]
-#define FG_N_Z_cg f->n_cg_body_v[2]
-
- FG_VECTOR_3 n_pilot_body_v;
-#define FG_N_pilot_body_v f->n_pilot_body_v
-#define FG_N_X_pilot f->n_pilot_body_v[0]
-#define FG_N_Y_pilot f->n_pilot_body_v[1]
-#define FG_N_Z_pilot f->n_pilot_body_v[2]
-
- FG_VECTOR_3 omega_dot_body_v;
-#define FG_Omega_dot_body_v f->omega_dot_body_v
-#define FG_P_dot_body f->omega_dot_body_v[0]
-#define FG_Q_dot_body f->omega_dot_body_v[1]
-#define FG_R_dot_body f->omega_dot_body_v[2]
-
-
-/*============================== Velocities ===============================*/
-
- FG_VECTOR_3 v_local_v;
-#define FG_V_local_v f->v_local_v
-#define FG_V_north f->v_local_v[0]
-#define FG_V_east f->v_local_v[1]
-#define FG_V_down f->v_local_v[2]
-
- FG_VECTOR_3 v_local_rel_ground_v; /* V rel w.r.t. earth surface */
-#define FG_V_local_rel_ground_v f->v_local_rel_ground_v
-#define FG_V_north_rel_ground f->v_local_rel_ground_v[0]
-#define FG_V_east_rel_ground f->v_local_rel_ground_v[1]
-#define FG_V_down_rel_ground f->v_local_rel_ground_v[2]
-
- FG_VECTOR_3 v_local_airmass_v; /* velocity of airmass (steady winds) */
-#define FG_V_local_airmass_v f->v_local_airmass_v
-#define FG_V_north_airmass f->v_local_airmass_v[0]
-#define FG_V_east_airmass f->v_local_airmass_v[1]
-#define FG_V_down_airmass f->v_local_airmass_v[2]
-
- FG_VECTOR_3 v_local_rel_airmass_v; /* velocity of veh. relative to */
- /* airmass */
-#define FG_V_local_rel_airmass_v f->v_local_rel_airmass_v
-#define FG_V_north_rel_airmass f->v_local_rel_airmass_v[0]
-#define FG_V_east_rel_airmass f->v_local_rel_airmass_v[1]
-#define FG_V_down_rel_airmass f->v_local_rel_airmass_v[2]
-
- FG_VECTOR_3 v_local_gust_v; /* linear turbulence components, L frame */
-#define FG_V_local_gust_v f->v_local_gust_v
-#define FG_U_gust f->v_local_gust_v[0]
-#define FG_V_gust f->v_local_gust_v[1]
-#define FG_W_gust f->v_local_gust_v[2]
-
- FG_VECTOR_3 v_wind_body_v; /* Wind-relative velocities in body axis */
-#define FG_V_wind_body_v f->v_wind_body_v
-#define FG_U_body f->v_wind_body_v[0]
-#define FG_V_body f->v_wind_body_v[1]
-#define FG_W_body f->v_wind_body_v[2]
-
- double v_rel_wind, v_true_kts, v_rel_ground, v_inertial;
- double v_ground_speed, v_equiv, v_equiv_kts;
- double v_calibrated, v_calibrated_kts;
-#define FG_V_rel_wind f->v_rel_wind
-#define FG_V_true_kts f->v_true_kts
-#define FG_V_rel_ground f->v_rel_ground
-#define FG_V_inertial f->v_inertial
-#define FG_V_ground_speed f->v_ground_speed
-#define FG_V_equiv f->v_equiv
-#define FG_V_equiv_kts f->v_equiv_kts
-#define FG_V_calibrated f->v_calibrated
-#define FG_V_calibrated_kts f->v_calibrated_kts
-
- FG_VECTOR_3 omega_body_v; /* Angular B rates */
-#define FG_Omega_body_v f->omega_body_v
-#define FG_P_body f->omega_body_v[0]
-#define FG_Q_body f->omega_body_v[1]
-#define FG_R_body f->omega_body_v[2]
-
- FG_VECTOR_3 omega_local_v; /* Angular L rates */
-#define FG_Omega_local_v f->omega_local_v
-#define FG_P_local f->omega_local_v[0]
-#define FG_Q_local f->omega_local_v[1]
-#define FG_R_local f->omega_local_v[2]
-
- FG_VECTOR_3 omega_total_v; /* Diff btw B & L */
-#define FG_Omega_total_v f->omega_total_v
-#define FG_P_total f->omega_total_v[0]
-#define FG_Q_total f->omega_total_v[1]
-#define FG_R_total f->omega_total_v[2]
-
- FG_VECTOR_3 euler_rates_v;
-#define FG_Euler_rates_v f->euler_rates_v
-#define FG_Phi_dot f->euler_rates_v[0]
-#define FG_Theta_dot f->euler_rates_v[1]
-#define FG_Psi_dot f->euler_rates_v[2]
-
- FG_VECTOR_3 geocentric_rates_v; /* Geocentric linear velocities */
-#define FG_Geocentric_rates_v f->geocentric_rates_v
-#define FG_Latitude_dot f->geocentric_rates_v[0]
-#define FG_Longitude_dot f->geocentric_rates_v[1]
-#define FG_Radius_dot f->geocentric_rates_v[2]
-
-/*=============================== Positions ===============================*/
-
- FG_VECTOR_3 geocentric_position_v;
-#define FG_Geocentric_position_v f->geocentric_position_v
-#define FG_Lat_geocentric f->geocentric_position_v[0]
-#define FG_Lon_geocentric f->geocentric_position_v[1]
-#define FG_Radius_to_vehicle f->geocentric_position_v[2]
-
- FG_VECTOR_3 geodetic_position_v;
-#define FG_Geodetic_position_v f->geodetic_position_v
-#define FG_Latitude f->geodetic_position_v[0]
-#define FG_Longitude f->geodetic_position_v[1]
-#define FG_Altitude f->geodetic_position_v[2]
-
- FG_VECTOR_3 euler_angles_v;
-#define FG_Euler_angles_v f->euler_angles_v
-#define FG_Phi f->euler_angles_v[0]
-#define FG_Theta f->euler_angles_v[1]
-#define FG_Psi f->euler_angles_v[2]
-
-/*======================= Miscellaneous quantities ========================*/
-
- double t_local_to_body_m[3][3]; /* Transformation matrix L to B */
-#define FG_T_local_to_body_m f->t_local_to_body_m
-#define FG_T_local_to_body_11 f->t_local_to_body_m[0][0]
-#define FG_T_local_to_body_12 f->t_local_to_body_m[0][1]
-#define FG_T_local_to_body_13 f->t_local_to_body_m[0][2]
-#define FG_T_local_to_body_21 f->t_local_to_body_m[1][0]
-#define FG_T_local_to_body_22 f->t_local_to_body_m[1][1]
-#define FG_T_local_to_body_23 f->t_local_to_body_m[1][2]
-#define FG_T_local_to_body_31 f->t_local_to_body_m[2][0]
-#define FG_T_local_to_body_32 f->t_local_to_body_m[2][1]
-#define FG_T_local_to_body_33 f->t_local_to_body_m[2][2]
-
- double gravity; /* Local acceleration due to G */
-#define FG_Gravity f->gravity
-
- double centrifugal_relief; /* load factor reduction due to speed */
-#define FG_Centrifugal_relief f->centrifugal_relief
-
- double alpha, beta, alpha_dot, beta_dot; /* in radians */
-#define FG_Alpha f->alpha
-#define FG_Beta f->beta
-#define FG_Alpha_dot f->alpha_dot
-#define FG_Beta_dot f->beta_dot
-
- double cos_alpha, sin_alpha, cos_beta, sin_beta;
-#define FG_Cos_alpha f->cos_alpha
-#define FG_Sin_alpha f->sin_alpha
-#define FG_Cos_beta f->cos_beta
-#define FG_Sin_beta f->sin_beta
-
- double cos_phi, sin_phi, cos_theta, sin_theta, cos_psi, sin_psi;
-#define FG_Cos_phi f->cos_phi
-#define FG_Sin_phi f->sin_phi
-#define FG_Cos_theta f->cos_theta
-#define FG_Sin_theta f->sin_theta
-#define FG_Cos_psi f->cos_psi
-#define FG_Sin_psi f->sin_psi
-
- double gamma_vert_rad, gamma_horiz_rad; /* Flight path angles */
-#define FG_Gamma_vert_rad f->gamma_vert_rad
-#define FG_Gamma_horiz_rad f->gamma_horiz_rad
-
- double sigma, density, v_sound, mach_number;
-#define FG_Sigma f->sigma
-#define FG_Density f->density
-#define FG_V_sound f->v_sound
-#define FG_Mach_number f->mach_number
-
- double static_pressure, total_pressure, impact_pressure;
- double dynamic_pressure;
-#define FG_Static_pressure f->static_pressure
-#define FG_Total_pressure f->total_pressure
-#define FG_Impact_pressure f->impact_pressure
-#define FG_Dynamic_pressure f->dynamic_pressure
-
- double static_temperature, total_temperature;
-#define FG_Static_temperature f->static_temperature
-#define FG_Total_temperature f->total_temperature
-
- double sea_level_radius, earth_position_angle;
-#define FG_Sea_level_radius f->sea_level_radius
-#define FG_Earth_position_angle f->earth_position_angle
-
- double runway_altitude, runway_latitude, runway_longitude;
- double runway_heading;
-#define FG_Runway_altitude f->runway_altitude
-#define FG_Runway_latitude f->runway_latitude
-#define FG_Runway_longitude f->runway_longitude
-#define FG_Runway_heading f->runway_heading
-
- double radius_to_rwy;
-#define FG_Radius_to_rwy f->radius_to_rwy
-
- FG_VECTOR_3 d_cg_rwy_local_v; /* CG rel. to rwy in local coords */
-#define FG_D_cg_rwy_local_v f->d_cg_rwy_local_v
-#define FG_D_cg_north_of_rwy f->d_cg_rwy_local_v[0]
-#define FG_D_cg_east_of_rwy f->d_cg_rwy_local_v[1]
-#define FG_D_cg_above_rwy f->d_cg_rwy_local_v[2]
-
- FG_VECTOR_3 d_cg_rwy_rwy_v; /* CG relative to rwy, in rwy coordinates */
-#define FG_D_cg_rwy_rwy_v f->d_cg_rwy_rwy_v
-#define FG_X_cg_rwy f->d_cg_rwy_rwy_v[0]
-#define FG_Y_cg_rwy f->d_cg_rwy_rwy_v[1]
-#define FG_H_cg_rwy f->d_cg_rwy_rwy_v[2]
-
- FG_VECTOR_3 d_pilot_rwy_local_v; /* pilot rel. to rwy in local coords */
-#define FG_D_pilot_rwy_local_v f->d_pilot_rwy_local_v
-#define FG_D_pilot_north_of_rwy f->d_pilot_rwy_local_v[0]
-#define FG_D_pilot_east_of_rwy f->d_pilot_rwy_local_v[1]
-#define FG_D_pilot_above_rwy f->d_pilot_rwy_local_v[2]
-
- FG_VECTOR_3 d_pilot_rwy_rwy_v; /* pilot rel. to rwy, in rwy coords. */
-#define FG_D_pilot_rwy_rwy_v f->d_pilot_rwy_rwy_v
-#define FG_X_pilot_rwy f->d_pilot_rwy_rwy_v[0]
-#define FG_Y_pilot_rwy f->d_pilot_rwy_rwy_v[1]
-#define FG_H_pilot_rwy f->d_pilot_rwy_rwy_v[2]
-
- double climb_rate; /* in feet per second */
-#define FG_Climb_Rate f->climb_rate
-
-} fgFLIGHT, *pfgFlight;
-
-
-extern fgFLIGHT cur_flight_params;
-
-
-/* General interface to the flight model routines */
-
-/* Initialize the flight model parameters */
-int fgFlightModelInit(int model, fgFLIGHT *f, double dt);
-
-/* Run multiloop iterations of the flight model */
-int fgFlightModelUpdate(int model, fgFLIGHT *f, int multiloop);
-
-/* Set the altitude (force) */
-int fgFlightModelSetAltitude(int model, fgFLIGHT *f, double alt_meters);
-
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif /* _FLIGHT_H */
-
-
-// $Log$
-// Revision 1.20 1998/09/29 14:57:39 curt
-// c++-ified comments.
-//
-// Revision 1.19 1998/09/29 02:02:41 curt
-// Added a rate of climb calculation.
-//
-// Revision 1.18 1998/07/30 23:44:36 curt
-// Beginning to add support for multiple flight models.
-//
-// Revision 1.17 1998/07/12 03:08:28 curt
-// Added fgFlightModelSetAltitude() to force the altitude to something
-// other than the current altitude. LaRCsim doesn't let you do this by just
-// changing FG_Altitude.
-//
-// Revision 1.16 1998/04/22 13:26:20 curt
-// C++ - ifing the code a bit.
-//
-// Revision 1.15 1998/04/21 16:59:33 curt
-// Integrated autopilot.
-// Prepairing for C++ integration.
-//
-// Revision 1.14 1998/02/07 15:29:37 curt
-// Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
-// <chotchkiss@namg.us.anritsu.com>
-//
-// Revision 1.13 1998/01/24 00:04:59 curt
-// misc. tweaks.
-//
-// Revision 1.12 1998/01/22 02:59:32 curt
-// Changed #ifdef FILE_H to #ifdef _FILE_H
-//
-// Revision 1.11 1998/01/19 19:27:03 curt
-// Merged in make system changes from Bob Kuehne <rpk@sgi.com>
-// This should simplify things tremendously.
-//
-// Revision 1.10 1997/12/10 22:37:43 curt
-// Prepended "fg" on the name of all global structures that didn't have it yet.
-// i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
-//
-// Revision 1.9 1997/09/04 02:17:33 curt
-// Shufflin' stuff.
-//
-// Revision 1.8 1997/08/27 03:30:06 curt
-// Changed naming scheme of basic shared structures.
-//
-// Revision 1.7 1997/07/23 21:52:19 curt
-// Put comments around the text after an #endif for increased portability.
-//
-// Revision 1.6 1997/06/21 17:52:22 curt
-// Continue directory shuffling ... everything should be compilable/runnable
-// again.
-//
-// Revision 1.5 1997/06/21 17:12:49 curt
-// Capitalized subdirectory names.
-//
-// Revision 1.4 1997/05/29 22:39:57 curt
-// Working on incorporating the LaRCsim flight model.
-//
-// Revision 1.3 1997/05/29 02:32:25 curt
-// Starting to build generic flight model interface.
-//
-// Revision 1.2 1997/05/23 15:40:37 curt
-// Added GNU copyright headers.
-//
-// Revision 1.1 1997/05/16 16:04:45 curt
-// Initial revision.
-//
--- /dev/null
+// flight.h -- define shared flight model parameters
+//
+// Written by Curtis Olson, started May 1997.
+//
+// Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
+//
+// 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)
+
+
+#ifndef _FLIGHT_H
+#define _FLIGHT_H
+
+
+#include <Flight/Slew/slew.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* Define the various supported flight models (most not yet implemented) */
+#define FG_SLEW 0 /* Slew (in MS terminology) */
+#define FG_LARCSIM 1 /* The only "real" model that is currently
+ implemented */
+#define FG_ACM 2
+#define FG_SUPER_SONIC 3
+#define FG_HELICOPTER 4
+#define FG_AUTOGYRO 5
+#define FG_BALLOON 6
+#define FG_PARACHUTE 7
+#define FG_EXTERN_GPS 8 /* Driven via a serially connected GPS */
+#define FG_EXTERN_NET 9 /* Driven externally via the net */
+#define FG_EXTERN_NASA 10 /* Track the space shuttle ? */
+
+
+typedef double FG_VECTOR_3[3];
+
+/* This is based heavily on LaRCsim/ls_generic.h */
+typedef struct {
+
+/*================== Mass properties and geometry values ==================*/
+
+ double mass, i_xx, i_yy, i_zz, i_xz; /* Inertias */
+#define FG_Mass f->mass
+#define FG_I_xx f->i_xx
+#define FG_I_yy f->i_yy
+#define FG_I_zz f->i_zz
+#define FG_I_xz f->i_xz
+
+ FG_VECTOR_3 d_pilot_rp_body_v; /* Pilot location rel to ref pt */
+#define FG_D_pilot_rp_body_v f->d_pilot_rp_body_v
+#define FG_Dx_pilot f->d_pilot_rp_body_v[0]
+#define FG_Dy_pilot f->d_pilot_rp_body_v[1]
+#define FG_Dz_pilot f->d_pilot_rp_body_v[2]
+
+ FG_VECTOR_3 d_cg_rp_body_v; /* CG position w.r.t. ref. point */
+#define FG_D_cg_rp_body_v f->d_cg_rp_body_v
+#define FG_Dx_cg f->d_cg_rp_body_v[0]
+#define FG_Dy_cg f->d_cg_rp_body_v[1]
+#define FG_Dz_cg f->d_cg_rp_body_v[2]
+
+/*================================ Forces =================================*/
+
+ FG_VECTOR_3 f_body_total_v;
+#define FG_F_body_total_v f->f_body_total_v
+#define FG_F_X f->f_body_total_v[0]
+#define FG_F_Y f->f_body_total_v[1]
+#define FG_F_Z f->f_body_total_v[2]
+
+ FG_VECTOR_3 f_local_total_v;
+#define FG_F_local_total_v f->f_local_total_v
+#define FG_F_north f->f_local_total_v[0]
+#define FG_F_east f->f_local_total_v[1]
+#define FG_F_down f->f_local_total_v[2]
+
+ FG_VECTOR_3 f_aero_v;
+#define FG_F_aero_v f->f_aero_v
+#define FG_F_X_aero f->f_aero_v[0]
+#define FG_F_Y_aero f->f_aero_v[1]
+#define FG_F_Z_aero f->f_aero_v[2]
+
+ FG_VECTOR_3 f_engine_v;
+#define FG_F_engine_v f->f_engine_v
+#define FG_F_X_engine f->f_engine_v[0]
+#define FG_F_Y_engine f->f_engine_v[1]
+#define FG_F_Z_engine f->f_engine_v[2]
+
+ FG_VECTOR_3 f_gear_v;
+#define FG_F_gear_v f->f_gear_v
+#define FG_F_X_gear f->f_gear_v[0]
+#define FG_F_Y_gear f->f_gear_v[1]
+#define FG_F_Z_gear f->f_gear_v[2]
+
+/*================================ Moments ================================*/
+
+ FG_VECTOR_3 m_total_rp_v;
+#define FG_M_total_rp_v f->m_total_rp_v
+#define FG_M_l_rp f->m_total_rp_v[0]
+#define FG_M_m_rp f->m_total_rp_v[1]
+#define FG_M_n_rp f->m_total_rp_v[2]
+
+ FG_VECTOR_3 m_total_cg_v;
+#define FG_M_total_cg_v f->m_total_cg_v
+#define FG_M_l_cg f->m_total_cg_v[0]
+#define FG_M_m_cg f->m_total_cg_v[1]
+#define FG_M_n_cg f->m_total_cg_v[2]
+
+ FG_VECTOR_3 m_aero_v;
+#define FG_M_aero_v f->m_aero_v
+#define FG_M_l_aero f->m_aero_v[0]
+#define FG_M_m_aero f->m_aero_v[1]
+#define FG_M_n_aero f->m_aero_v[2]
+
+ FG_VECTOR_3 m_engine_v;
+#define FG_M_engine_v f->m_engine_v
+#define FG_M_l_engine f->m_engine_v[0]
+#define FG_M_m_engine f->m_engine_v[1]
+#define FG_M_n_engine f->m_engine_v[2]
+
+ FG_VECTOR_3 m_gear_v;
+#define FG_M_gear_v f->m_gear_v
+#define FG_M_l_gear f->m_gear_v[0]
+#define FG_M_m_gear f->m_gear_v[1]
+#define FG_M_n_gear f->m_gear_v[2]
+
+/*============================== Accelerations ============================*/
+
+ FG_VECTOR_3 v_dot_local_v;
+#define FG_V_dot_local_v f->v_dot_local_v
+#define FG_V_dot_north f->v_dot_local_v[0]
+#define FG_V_dot_east f->v_dot_local_v[1]
+#define FG_V_dot_down f->v_dot_local_v[2]
+
+ FG_VECTOR_3 v_dot_body_v;
+#define FG_V_dot_body_v f->v_dot_body_v
+#define FG_U_dot_body f->v_dot_body_v[0]
+#define FG_V_dot_body f->v_dot_body_v[1]
+#define FG_W_dot_body f->v_dot_body_v[2]
+
+ FG_VECTOR_3 a_cg_body_v;
+#define FG_A_cg_body_v f->a_cg_body_v
+#define FG_A_X_cg f->a_cg_body_v[0]
+#define FG_A_Y_cg f->a_cg_body_v[1]
+#define FG_A_Z_cg f->a_cg_body_v[2]
+
+ FG_VECTOR_3 a_pilot_body_v;
+#define FG_A_pilot_body_v f->a_pilot_body_v
+#define FG_A_X_pilot f->a_pilot_body_v[0]
+#define FG_A_Y_pilot f->a_pilot_body_v[1]
+#define FG_A_Z_pilot f->a_pilot_body_v[2]
+
+ FG_VECTOR_3 n_cg_body_v;
+#define FG_N_cg_body_v f->n_cg_body_v
+#define FG_N_X_cg f->n_cg_body_v[0]
+#define FG_N_Y_cg f->n_cg_body_v[1]
+#define FG_N_Z_cg f->n_cg_body_v[2]
+
+ FG_VECTOR_3 n_pilot_body_v;
+#define FG_N_pilot_body_v f->n_pilot_body_v
+#define FG_N_X_pilot f->n_pilot_body_v[0]
+#define FG_N_Y_pilot f->n_pilot_body_v[1]
+#define FG_N_Z_pilot f->n_pilot_body_v[2]
+
+ FG_VECTOR_3 omega_dot_body_v;
+#define FG_Omega_dot_body_v f->omega_dot_body_v
+#define FG_P_dot_body f->omega_dot_body_v[0]
+#define FG_Q_dot_body f->omega_dot_body_v[1]
+#define FG_R_dot_body f->omega_dot_body_v[2]
+
+
+/*============================== Velocities ===============================*/
+
+ FG_VECTOR_3 v_local_v;
+#define FG_V_local_v f->v_local_v
+#define FG_V_north f->v_local_v[0]
+#define FG_V_east f->v_local_v[1]
+#define FG_V_down f->v_local_v[2]
+
+ FG_VECTOR_3 v_local_rel_ground_v; /* V rel w.r.t. earth surface */
+#define FG_V_local_rel_ground_v f->v_local_rel_ground_v
+#define FG_V_north_rel_ground f->v_local_rel_ground_v[0]
+#define FG_V_east_rel_ground f->v_local_rel_ground_v[1]
+#define FG_V_down_rel_ground f->v_local_rel_ground_v[2]
+
+ FG_VECTOR_3 v_local_airmass_v; /* velocity of airmass (steady winds) */
+#define FG_V_local_airmass_v f->v_local_airmass_v
+#define FG_V_north_airmass f->v_local_airmass_v[0]
+#define FG_V_east_airmass f->v_local_airmass_v[1]
+#define FG_V_down_airmass f->v_local_airmass_v[2]
+
+ FG_VECTOR_3 v_local_rel_airmass_v; /* velocity of veh. relative to */
+ /* airmass */
+#define FG_V_local_rel_airmass_v f->v_local_rel_airmass_v
+#define FG_V_north_rel_airmass f->v_local_rel_airmass_v[0]
+#define FG_V_east_rel_airmass f->v_local_rel_airmass_v[1]
+#define FG_V_down_rel_airmass f->v_local_rel_airmass_v[2]
+
+ FG_VECTOR_3 v_local_gust_v; /* linear turbulence components, L frame */
+#define FG_V_local_gust_v f->v_local_gust_v
+#define FG_U_gust f->v_local_gust_v[0]
+#define FG_V_gust f->v_local_gust_v[1]
+#define FG_W_gust f->v_local_gust_v[2]
+
+ FG_VECTOR_3 v_wind_body_v; /* Wind-relative velocities in body axis */
+#define FG_V_wind_body_v f->v_wind_body_v
+#define FG_U_body f->v_wind_body_v[0]
+#define FG_V_body f->v_wind_body_v[1]
+#define FG_W_body f->v_wind_body_v[2]
+
+ double v_rel_wind, v_true_kts, v_rel_ground, v_inertial;
+ double v_ground_speed, v_equiv, v_equiv_kts;
+ double v_calibrated, v_calibrated_kts;
+#define FG_V_rel_wind f->v_rel_wind
+#define FG_V_true_kts f->v_true_kts
+#define FG_V_rel_ground f->v_rel_ground
+#define FG_V_inertial f->v_inertial
+#define FG_V_ground_speed f->v_ground_speed
+#define FG_V_equiv f->v_equiv
+#define FG_V_equiv_kts f->v_equiv_kts
+#define FG_V_calibrated f->v_calibrated
+#define FG_V_calibrated_kts f->v_calibrated_kts
+
+ FG_VECTOR_3 omega_body_v; /* Angular B rates */
+#define FG_Omega_body_v f->omega_body_v
+#define FG_P_body f->omega_body_v[0]
+#define FG_Q_body f->omega_body_v[1]
+#define FG_R_body f->omega_body_v[2]
+
+ FG_VECTOR_3 omega_local_v; /* Angular L rates */
+#define FG_Omega_local_v f->omega_local_v
+#define FG_P_local f->omega_local_v[0]
+#define FG_Q_local f->omega_local_v[1]
+#define FG_R_local f->omega_local_v[2]
+
+ FG_VECTOR_3 omega_total_v; /* Diff btw B & L */
+#define FG_Omega_total_v f->omega_total_v
+#define FG_P_total f->omega_total_v[0]
+#define FG_Q_total f->omega_total_v[1]
+#define FG_R_total f->omega_total_v[2]
+
+ FG_VECTOR_3 euler_rates_v;
+#define FG_Euler_rates_v f->euler_rates_v
+#define FG_Phi_dot f->euler_rates_v[0]
+#define FG_Theta_dot f->euler_rates_v[1]
+#define FG_Psi_dot f->euler_rates_v[2]
+
+ FG_VECTOR_3 geocentric_rates_v; /* Geocentric linear velocities */
+#define FG_Geocentric_rates_v f->geocentric_rates_v
+#define FG_Latitude_dot f->geocentric_rates_v[0]
+#define FG_Longitude_dot f->geocentric_rates_v[1]
+#define FG_Radius_dot f->geocentric_rates_v[2]
+
+/*=============================== Positions ===============================*/
+
+ FG_VECTOR_3 geocentric_position_v;
+#define FG_Geocentric_position_v f->geocentric_position_v
+#define FG_Lat_geocentric f->geocentric_position_v[0]
+#define FG_Lon_geocentric f->geocentric_position_v[1]
+#define FG_Radius_to_vehicle f->geocentric_position_v[2]
+
+ FG_VECTOR_3 geodetic_position_v;
+#define FG_Geodetic_position_v f->geodetic_position_v
+#define FG_Latitude f->geodetic_position_v[0]
+#define FG_Longitude f->geodetic_position_v[1]
+#define FG_Altitude f->geodetic_position_v[2]
+
+ FG_VECTOR_3 euler_angles_v;
+#define FG_Euler_angles_v f->euler_angles_v
+#define FG_Phi f->euler_angles_v[0]
+#define FG_Theta f->euler_angles_v[1]
+#define FG_Psi f->euler_angles_v[2]
+
+/*======================= Miscellaneous quantities ========================*/
+
+ double t_local_to_body_m[3][3]; /* Transformation matrix L to B */
+#define FG_T_local_to_body_m f->t_local_to_body_m
+#define FG_T_local_to_body_11 f->t_local_to_body_m[0][0]
+#define FG_T_local_to_body_12 f->t_local_to_body_m[0][1]
+#define FG_T_local_to_body_13 f->t_local_to_body_m[0][2]
+#define FG_T_local_to_body_21 f->t_local_to_body_m[1][0]
+#define FG_T_local_to_body_22 f->t_local_to_body_m[1][1]
+#define FG_T_local_to_body_23 f->t_local_to_body_m[1][2]
+#define FG_T_local_to_body_31 f->t_local_to_body_m[2][0]
+#define FG_T_local_to_body_32 f->t_local_to_body_m[2][1]
+#define FG_T_local_to_body_33 f->t_local_to_body_m[2][2]
+
+ double gravity; /* Local acceleration due to G */
+#define FG_Gravity f->gravity
+
+ double centrifugal_relief; /* load factor reduction due to speed */
+#define FG_Centrifugal_relief f->centrifugal_relief
+
+ double alpha, beta, alpha_dot, beta_dot; /* in radians */
+#define FG_Alpha f->alpha
+#define FG_Beta f->beta
+#define FG_Alpha_dot f->alpha_dot
+#define FG_Beta_dot f->beta_dot
+
+ double cos_alpha, sin_alpha, cos_beta, sin_beta;
+#define FG_Cos_alpha f->cos_alpha
+#define FG_Sin_alpha f->sin_alpha
+#define FG_Cos_beta f->cos_beta
+#define FG_Sin_beta f->sin_beta
+
+ double cos_phi, sin_phi, cos_theta, sin_theta, cos_psi, sin_psi;
+#define FG_Cos_phi f->cos_phi
+#define FG_Sin_phi f->sin_phi
+#define FG_Cos_theta f->cos_theta
+#define FG_Sin_theta f->sin_theta
+#define FG_Cos_psi f->cos_psi
+#define FG_Sin_psi f->sin_psi
+
+ double gamma_vert_rad, gamma_horiz_rad; /* Flight path angles */
+#define FG_Gamma_vert_rad f->gamma_vert_rad
+#define FG_Gamma_horiz_rad f->gamma_horiz_rad
+
+ double sigma, density, v_sound, mach_number;
+#define FG_Sigma f->sigma
+#define FG_Density f->density
+#define FG_V_sound f->v_sound
+#define FG_Mach_number f->mach_number
+
+ double static_pressure, total_pressure, impact_pressure;
+ double dynamic_pressure;
+#define FG_Static_pressure f->static_pressure
+#define FG_Total_pressure f->total_pressure
+#define FG_Impact_pressure f->impact_pressure
+#define FG_Dynamic_pressure f->dynamic_pressure
+
+ double static_temperature, total_temperature;
+#define FG_Static_temperature f->static_temperature
+#define FG_Total_temperature f->total_temperature
+
+ double sea_level_radius, earth_position_angle;
+#define FG_Sea_level_radius f->sea_level_radius
+#define FG_Earth_position_angle f->earth_position_angle
+
+ double runway_altitude, runway_latitude, runway_longitude;
+ double runway_heading;
+#define FG_Runway_altitude f->runway_altitude
+#define FG_Runway_latitude f->runway_latitude
+#define FG_Runway_longitude f->runway_longitude
+#define FG_Runway_heading f->runway_heading
+
+ double radius_to_rwy;
+#define FG_Radius_to_rwy f->radius_to_rwy
+
+ FG_VECTOR_3 d_cg_rwy_local_v; /* CG rel. to rwy in local coords */
+#define FG_D_cg_rwy_local_v f->d_cg_rwy_local_v
+#define FG_D_cg_north_of_rwy f->d_cg_rwy_local_v[0]
+#define FG_D_cg_east_of_rwy f->d_cg_rwy_local_v[1]
+#define FG_D_cg_above_rwy f->d_cg_rwy_local_v[2]
+
+ FG_VECTOR_3 d_cg_rwy_rwy_v; /* CG relative to rwy, in rwy coordinates */
+#define FG_D_cg_rwy_rwy_v f->d_cg_rwy_rwy_v
+#define FG_X_cg_rwy f->d_cg_rwy_rwy_v[0]
+#define FG_Y_cg_rwy f->d_cg_rwy_rwy_v[1]
+#define FG_H_cg_rwy f->d_cg_rwy_rwy_v[2]
+
+ FG_VECTOR_3 d_pilot_rwy_local_v; /* pilot rel. to rwy in local coords */
+#define FG_D_pilot_rwy_local_v f->d_pilot_rwy_local_v
+#define FG_D_pilot_north_of_rwy f->d_pilot_rwy_local_v[0]
+#define FG_D_pilot_east_of_rwy f->d_pilot_rwy_local_v[1]
+#define FG_D_pilot_above_rwy f->d_pilot_rwy_local_v[2]
+
+ FG_VECTOR_3 d_pilot_rwy_rwy_v; /* pilot rel. to rwy, in rwy coords. */
+#define FG_D_pilot_rwy_rwy_v f->d_pilot_rwy_rwy_v
+#define FG_X_pilot_rwy f->d_pilot_rwy_rwy_v[0]
+#define FG_Y_pilot_rwy f->d_pilot_rwy_rwy_v[1]
+#define FG_H_pilot_rwy f->d_pilot_rwy_rwy_v[2]
+
+ double climb_rate; /* in feet per second */
+#define FG_Climb_Rate f->climb_rate
+
+} fgFLIGHT, *pfgFlight;
+
+
+extern fgFLIGHT cur_flight_params;
+
+
+/* General interface to the flight model routines */
+
+/* Initialize the flight model parameters */
+int fgFlightModelInit(int model, fgFLIGHT *f, double dt);
+
+/* Run multiloop iterations of the flight model */
+int fgFlightModelUpdate(int model, fgFLIGHT *f, int multiloop);
+
+/* Set the altitude (force) */
+int fgFlightModelSetAltitude(int model, fgFLIGHT *f, double alt_meters);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* _FLIGHT_H */
+
+
+// $Log$
+// Revision 1.1 1998/10/16 20:16:44 curt
+// Renamed flight.[ch] to flight.[ch]xx
+//
+// Revision 1.20 1998/09/29 14:57:39 curt
+// c++-ified comments.
+//
+// Revision 1.19 1998/09/29 02:02:41 curt
+// Added a rate of climb calculation.
+//
+// Revision 1.18 1998/07/30 23:44:36 curt
+// Beginning to add support for multiple flight models.
+//
+// Revision 1.17 1998/07/12 03:08:28 curt
+// Added fgFlightModelSetAltitude() to force the altitude to something
+// other than the current altitude. LaRCsim doesn't let you do this by just
+// changing FG_Altitude.
+//
+// Revision 1.16 1998/04/22 13:26:20 curt
+// C++ - ifing the code a bit.
+//
+// Revision 1.15 1998/04/21 16:59:33 curt
+// Integrated autopilot.
+// Prepairing for C++ integration.
+//
+// Revision 1.14 1998/02/07 15:29:37 curt
+// Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
+// <chotchkiss@namg.us.anritsu.com>
+//
+// Revision 1.13 1998/01/24 00:04:59 curt
+// misc. tweaks.
+//
+// Revision 1.12 1998/01/22 02:59:32 curt
+// Changed #ifdef FILE_H to #ifdef _FILE_H
+//
+// Revision 1.11 1998/01/19 19:27:03 curt
+// Merged in make system changes from Bob Kuehne <rpk@sgi.com>
+// This should simplify things tremendously.
+//
+// Revision 1.10 1997/12/10 22:37:43 curt
+// Prepended "fg" on the name of all global structures that didn't have it yet.
+// i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
+//
+// Revision 1.9 1997/09/04 02:17:33 curt
+// Shufflin' stuff.
+//
+// Revision 1.8 1997/08/27 03:30:06 curt
+// Changed naming scheme of basic shared structures.
+//
+// Revision 1.7 1997/07/23 21:52:19 curt
+// Put comments around the text after an #endif for increased portability.
+//
+// Revision 1.6 1997/06/21 17:52:22 curt
+// Continue directory shuffling ... everything should be compilable/runnable
+// again.
+//
+// Revision 1.5 1997/06/21 17:12:49 curt
+// Capitalized subdirectory names.
+//
+// Revision 1.4 1997/05/29 22:39:57 curt
+// Working on incorporating the LaRCsim flight model.
+//
+// Revision 1.3 1997/05/29 02:32:25 curt
+// Starting to build generic flight model interface.
+//
+// Revision 1.2 1997/05/23 15:40:37 curt
+// Added GNU copyright headers.
+//
+// Revision 1.1 1997/05/16 16:04:45 curt
+// Initial revision.
+//