1 /**************************************************************************
2 * ls_interface.c -- the FG interface to the LaRCsim routines
3 * This is a heavily modified version of LaRCsim.c
4 * As a result there is much old baggage left in this file.
6 * Originally Written 921230 by Bruce Jackson
7 * Modified by Curtis Olson, started May 1997.
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of the
12 * License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 * (Log is kept at end of this file)
25 **************************************************************************/
27 /* Original headers follow: */
29 /***************************************************************************
33 ----------------------------------------------------------------------------
35 FUNCTION: Top level routine for LaRCSIM. Includes
36 global variable declarations.
38 ----------------------------------------------------------------------------
40 MODULE STATUS: Developmental
42 ----------------------------------------------------------------------------
44 GENEALOGY: Written 921230 by Bruce Jackson
46 ----------------------------------------------------------------------------
54 ----------------------------------------------------------------------------
60 930111 Added "progname" variable to keep name of invoking command.
62 931012 Removed altitude < 0. test to support gear development. EBJ
63 931214 Added various pressures (Impact, Dynamic, Static, etc.) EBJ
64 931215 Adopted new generic variable structure. EBJ
65 931218 Added command line options decoding. EBJ
66 940110 Changed file type of matrix file to ".m" EBJ
67 940513 Renamed this routine "LaRCsim.c" from "ls_main.c" EBJ
68 940513 Added time_stamp routine, t_stamp. EBJ
69 950225 Added options flag, 'i', to set I/O output rate. EBJ
70 950306 Added calls to ls_get_settings() and ls_put_settings() EBJ
71 950314 Options flag 'i' now reads IC file; 'o' is output rate EBJ
72 950406 Many changes: added definition of default value macros;
73 removed local variables term_update_hz, model_dt, endtime,
74 substituted sim_control_ globals for these; removed
75 initialization of sim_control_.tape_channels; moved optarg
76 to generic extern; added mod_end_time & mod_buf_size flags
77 and temporary buffer_time and data_rate locals to
78 ls_checkopts(); added additional command line switches '-s'
79 and '-b'; made psuedo-mandatory file names for data output
80 switches; considerable rewrite of logic for setting data
81 buffer length and interleave parameters; updated '-h' help
82 output message; added protection logic to calculations of
83 these parameters; added check of return value on first call
84 to ls_cockpit() so <esc> abort works from initial pause
85 state; added call to ls_unsync() immediately following
86 first ls_sync() call, if paused (to avoid alarm clock
87 timeout); moved call to ls_record() into non-paused
88 multiloop path (was filling buffer with identical data
89 during pause); put check of paused flag before calling sync
90 routine ls_pause(); and added call to exit() on termination.
94 $Original log: LaRCsim.c,v $
95 * Revision 1.4.1.7 1995/04/07 01:04:37 bjax
96 * Many changes made to support storage of sim options from run to run,
97 * as well as restructuring storage buffer sizing and some loop logic
98 * changes. See the modification log for details.
100 * Revision 1.4.1.6 1995/03/29 16:12:09 bjax
101 * Added argument to -o switch; changed run loop to pass dt=0
102 * if in paused mode. EBj
104 * Revision 1.4.1.5 1995/03/15 12:30:20 bjax
105 * Set paused flag to non-zero by default; moved 'i' I/O rate flag
106 * switch to 'o'; made 'i' an initial conditions file switch; added
107 * null string to ls_get_settings() call so that default settings
108 * file will be read. EBJ
110 * Revision 1.4.1.4 1995/03/08 12:31:34 bjax
111 * Added userid retrieval and proper termination of time & date strings.
113 * Revision 1.4.1.3 1995/03/08 12:00:21 bjax
114 * Moved setting of default options to ls_setdefopts from
115 * ls_checkopts; rearranged order of ls_get_settings() call
116 * to between ls_setdefopts and ls_checkopts, so command
117 * line options will override settings file options.
120 * Revision 1.4.1.2 1995/03/06 18:48:49 bjax
121 * Added calles to ls_get_settings() and ls_put_settings(); added
122 * passing of dt and init flags in ls_model(). EBJ
124 * Revision 1.4.1.1 1995/03/03 02:23:08 bjax
125 * Beta version for LaRCsim, version 1.4
127 * Revision 1.3.2.7 1995/02/27 20:00:21 bjax
130 * Revision 1.3.2.6 1995/02/25 16:52:31 bjax
131 * Added 'i' option to set I/O iteration rate. EBJ
133 * Revision 1.3.2.5 1995/02/06 19:33:15 bjax
136 * Revision 1.3.2.4 1995/02/06 19:30:30 bjax
137 * Oops, should really compile these before checking in. Fixed capitailzation of
138 * Initialize in ls_loop parameter.
140 * Revision 1.3.2.3 1995/02/06 19:25:44 bjax
141 * Moved main simulation loop into subroutine ls_loop. EBJ
143 * Revision 1.3.2.2 1994/05/20 21:46:45 bjax
144 * A little better logic on checking for option arguments.
146 * Revision 1.3.2.1 1994/05/20 19:29:51 bjax
147 * Added options arguments to command line.
149 * Revision 1.3.1.16 1994/05/17 15:08:45 bjax
150 * Corrected so that full name to directyr and file is saved
151 * in new global variable "fullname"; this allows symbol table
152 * to be extracted when in another default directory.
154 * Revision 1.3.1.15 1994/05/17 14:50:24 bjax
157 * Revision 1.3.1.14 1994/05/17 14:50:23 bjax
160 * Revision 1.3.1.13 1994/05/17 14:50:21 bjax
163 * Revision 1.3.1.12 1994/05/17 14:50:20 bjax
166 * Revision 1.3.1.11 1994/05/17 13:56:24 bjax
169 * Revision 1.3.1.10 1994/05/17 13:23:03 bjax
172 * Revision 1.3.1.9 1994/05/17 13:20:03 bjax
175 * Revision 1.3.1.8 1994/05/17 13:19:23 bjax
178 * Revision 1.3.1.7 1994/05/17 13:18:29 bjax
181 * Revision 1.3.1.6 1994/05/17 13:16:30 bjax
184 * Revision 1.3.1.5 1994/05/17 13:03:44 bjax
187 * Revision 1.3.1.4 1994/05/17 13:03:38 bjax
190 * Revision 1.3.1.3 1994/05/17 12:49:08 bjax
193 * Revision 1.3.1.2 1994/05/17 12:48:45 bjax
194 * *** empty log message ***
196 * Revision 1.3.1.1 1994/05/13 20:39:17 bjax
199 * Revision 1.2 1994/05/13 19:51:50 bjax
203 ----------------------------------------------------------------------------
207 ----------------------------------------------------------------------------
211 ----------------------------------------------------------------------------
215 ----------------------------------------------------------------------------
219 ----------------------------------------------------------------------------
223 --------------------------------------------------------------------------*/
225 #include <sys/types.h>
226 /* #include <sys/stat.h> */
232 #include "ls_types.h"
233 #include "ls_constants.h"
234 #include "ls_generic.h"
235 #include "ls_sim_control.h"
236 #include "ls_cockpit.h"
237 #include "ls_interface.h"
239 #include "ls_accel.h"
241 #include "ls_model.h"
243 #include <Flight/flight.h>
244 #include <Aircraft/aircraft.h>
246 /* global variable declarations */
250 SIM_CONTROL sim_control_;
255 #define DEFAULT_TERM_UPDATE_HZ 20
256 #define DEFAULT_MODEL_HZ 120
257 #define DEFAULT_END_TIME 3600.
258 #define DEFAULT_SAVE_SPACING 8
259 #define DEFAULT_WRITE_SPACING 1
260 #define MAX_FILE_NAME_LENGTH 80
262 /* global variables */
267 /* file variables - default simulation settings */
269 static double model_dt;
270 static double speedup;
271 static char asc1name[MAX_FILE_NAME_LENGTH] = "run.asc1";
272 static char tabname[MAX_FILE_NAME_LENGTH] = "run.dat";
273 static char fltname[MAX_FILE_NAME_LENGTH] = "run.flt";
274 static char matname[MAX_FILE_NAME_LENGTH] = "run.m";
278 void ls_stamp( void ) {
279 char rcsid[] = "$Id$";
280 char revid[] = "$Revision$";
281 char dateid[] = "$Date$";
286 /* report version of LaRCsim*/
287 printf("\nLaRCsim %s, %s\n\n", revid, dateid);
289 nowtime_t = time( 0 );
290 nowtime = localtime( &nowtime_t ); /* set fields to correct time values */
291 date = (nowtime->tm_year)*10000
292 + (nowtime->tm_mon + 1)*100
293 + (nowtime->tm_mday);
294 sprintf(sim_control_.date_string, "%06d\0", date);
295 sprintf(sim_control_.time_stamp, "%02d:%02d:%02d\0",
296 nowtime->tm_hour, nowtime->tm_min, nowtime->tm_sec);
297 #ifdef COMPILE_THIS_CODE_THIS_USELESS_CODE
298 cuserid( sim_control_.userid ); /* set up user id */
299 #endif /* COMPILE_THIS_CODE_THIS_USELESS_CODE */
303 void ls_setdefopts( void ) {
304 /* set default values for most options */
306 sim_control_.debug = 0; /* change to non-zero if in dbx! */
307 sim_control_.vision = 0;
308 sim_control_.write_av = 0; /* write Agile-Vu '.flt' file */
309 sim_control_.write_mat = 0; /* write matrix-x/matlab script */
310 sim_control_.write_tab = 0; /* write tab delim. history file */
311 sim_control_.write_asc1 = 0; /* write GetData file */
312 sim_control_.save_spacing = DEFAULT_SAVE_SPACING;
313 /* interpolation on recording */
314 sim_control_.write_spacing = DEFAULT_WRITE_SPACING;
315 /* interpolation on output */
316 sim_control_.end_time = DEFAULT_END_TIME;
317 sim_control_.model_hz = DEFAULT_MODEL_HZ;
318 sim_control_.term_update_hz = DEFAULT_TERM_UPDATE_HZ;
319 sim_control_.time_slices = (long int)(DEFAULT_END_TIME * DEFAULT_MODEL_HZ /
320 DEFAULT_SAVE_SPACING);
321 sim_control_.paused = 0;
327 /* return result codes from ls_checkopts */
332 #ifdef COMPILE_THIS_CODE_THIS_USELESS_CODE
337 int ls_checkopts(argc, argv) /* check and set options flags */
343 int mod_end_time = 0;
344 int mod_buf_size = 0;
345 float buffer_time, data_rate;
347 /* set default values */
349 buffer_time = sim_control_.time_slices * sim_control_.save_spacing /
350 sim_control_.model_hz;
351 data_rate = sim_control_.model_hz / sim_control_.save_spacing;
353 while ((c = getopt(argc, argv, "Aa:b:de:f:hi:kmo:r:s:t:x:")) != EOF)
356 if (sim_control_.sim_type == GLmouse)
358 fprintf(stderr, "Cannot specify both keyboard (k) and ACES (A) cockpits option\n");
359 fprintf(stderr, "Keyboard operation assumed.\n");
362 sim_control_.sim_type = cockpit;
365 sim_control_.write_av = 1;
368 strncpy(fltname, optarg, MAX_FILE_NAME_LENGTH);
373 buffer_time = atof(optarg);
374 if (buffer_time <= 0.) opt_err = -1;
378 sim_control_.debug = 1;
381 sim_control_.end_time = atof(optarg);
385 sim_control_.model_hz = atof(optarg);
391 /* ls_get_settings( optarg ); */
394 sim_control_.sim_type = GLmouse;
397 sim_control_.vision = 1;
400 sim_control_.term_update_hz = atof(optarg);
401 if (sim_control_.term_update_hz <= 0.) opt_err = 1;
404 sim_control_.write_mat = 1;
407 strncpy(matname, optarg, MAX_FILE_NAME_LENGTH);
412 data_rate = atof(optarg);
413 if (data_rate <= 0.) opt_err = -1;
416 sim_control_.write_tab = 1;
419 strncpy(tabname, optarg, MAX_FILE_NAME_LENGTH);
424 sim_control_.write_asc1 = 1;
427 strncpy(asc1name, optarg, MAX_FILE_NAME_LENGTH);
438 fprintf(stderr, "Usage: %s [-options]\n", progname);
439 fprintf(stderr, "\n");
440 fprintf(stderr, " where [-options] is zero or more of the following:\n");
441 fprintf(stderr, "\n");
442 fprintf(stderr, " [A|k] Run mode: [A]CES cockpit [default]\n");
443 fprintf(stderr, " or [k]eyboard\n");
444 fprintf(stderr, "\n");
445 fprintf(stderr, " [i <filename>] [i]nitial conditions filename\n");
446 fprintf(stderr, "\n");
447 fprintf(stderr, " [f <value>] Iteration rate [f]requency, Hz (default is %5.2f Hz)\n",
448 sim_control_.model_hz);
449 fprintf(stderr, "\n");
450 fprintf(stderr, " [o <value>] Display [o]utput frequency, Hz (default is %5.2f Hz)\n",
451 sim_control_.term_update_hz);
452 fprintf(stderr, "\n");
453 fprintf(stderr, " [s <value>] Data storage frequency, Hz (default is %5.2f Hz)\n",
455 fprintf(stderr, "\n");
456 fprintf(stderr, " [e <value>] [e]nd time in seconds (default %5.1f seconds)\n",
457 sim_control_.end_time);
458 fprintf(stderr, "\n");
459 fprintf(stderr, " [b <value>] circular time history storage [b]uffer size, in seconds \n");
460 fprintf(stderr, " (default %5.1f seconds) (normally same as end time)\n",
461 sim_control_.time_slices*sim_control_.save_spacing/
462 sim_control_.model_hz);
463 fprintf(stderr, "\n");
464 fprintf(stderr, " [atxr [<filename>]] Output: [a]gile-vu (default name: %s )\n", fltname);
465 fprintf(stderr, " and/or [t]ab delimited ( '' name: %s )\n", tabname);
466 fprintf(stderr, " and/or [x]plot (default name: %s)\n", asc1name);
467 fprintf(stderr, " and/or mat[r]ix script ( '' name: %s )\n", matname);
468 fprintf(stderr, "\n");
472 /* calculate additional controls */
474 sim_control_.save_spacing = (int) (0.5 + sim_control_.model_hz / data_rate);
475 if (sim_control_.save_spacing < 1) sim_control_.save_spacing = 1;
477 sim_control_.time_slices = buffer_time * sim_control_.model_hz /
478 sim_control_.save_spacing;
479 if (sim_control_.time_slices < 2) sim_control_.time_slices = 2;
483 #endif /* COMPILE_THIS_CODE_THIS_USELESS_CODE */
486 void ls_loop( SCALAR dt, int initialize ) {
487 /* printf (" In ls_loop()\n"); */
488 ls_step( dt, initialize );
489 /* if (sim_control_.sim_type == cockpit ) ls_ACES(); */
491 ls_model( dt, initialize );
497 int ls_cockpit( void ) {
500 sim_control_.paused = 0;
502 c = current_aircraft.controls;
504 Lat_control = FG_Aileron;
505 Long_control = FG_Elevator;
506 Long_trim = FG_Elev_Trim;
507 Rudder_pedal = FG_Rudder;
508 Throttle_pct = FG_Throttle[0];
510 /* printf("Mach = %.2f ", Mach_number);
511 printf("%.4f,%.4f,%.2f ", Latitude, Longitude, Altitude);
512 printf("%.2f,%.2f,%.2f\n", Phi, Theta, Psi); */
518 /* Initialize the LaRCsim flight model, dt is the time increment for
519 each subsequent iteration through the EOM */
520 int fgLaRCsimInit(double dt) {
523 ls_setdefopts(); /* set default options */
525 ls_stamp(); /* ID stamp; record time and date of run */
527 if (speedup == 0.0) {
528 fprintf(stderr, "%s: Cannot run with speedup of 0.\n", progname);
532 printf("LS pre Init pos = %.2f\n", Latitude);
536 printf("LS post Init pos = %.2f\n", Latitude);
539 /* Initialize (get) cockpit (controls) settings */
547 /* Run an iteration of the EOM (equations of motion) */
548 int fgLaRCsimUpdate(int multiloop) {
555 for ( i = 0; i < multiloop; i++ ) {
556 ls_loop( model_dt, 0);
563 /* Convert from the fgFLIGHT struct to the LaRCsim generic_ struct */
564 int fgFlight_2_LaRCsim (fgFLIGHT *f) {
570 Dx_pilot = FG_Dx_pilot;
571 Dy_pilot = FG_Dy_pilot;
572 Dz_pilot = FG_Dz_pilot;
579 F_north = FG_F_north;
582 F_X_aero = FG_F_X_aero;
583 F_Y_aero = FG_F_Y_aero;
584 F_Z_aero = FG_F_Z_aero;
585 F_X_engine = FG_F_X_engine;
586 F_Y_engine = FG_F_Y_engine;
587 F_Z_engine = FG_F_Z_engine;
588 F_X_gear = FG_F_X_gear;
589 F_Y_gear = FG_F_Y_gear;
590 F_Z_gear = FG_F_Z_gear;
597 M_l_aero = FG_M_l_aero;
598 M_m_aero = FG_M_m_aero;
599 M_n_aero = FG_M_n_aero;
600 M_l_engine = FG_M_l_engine;
601 M_m_engine = FG_M_m_engine;
602 M_n_engine = FG_M_n_engine;
603 M_l_gear = FG_M_l_gear;
604 M_m_gear = FG_M_m_gear;
605 M_n_gear = FG_M_n_gear;
606 V_dot_north = FG_V_dot_north;
607 V_dot_east = FG_V_dot_east;
608 V_dot_down = FG_V_dot_down;
609 U_dot_body = FG_U_dot_body;
610 V_dot_body = FG_V_dot_body;
611 W_dot_body = FG_W_dot_body;
615 A_X_pilot = FG_A_X_pilot;
616 A_Y_pilot = FG_A_Y_pilot;
617 A_Z_pilot = FG_A_Z_pilot;
621 N_X_pilot = FG_N_X_pilot;
622 N_Y_pilot = FG_N_Y_pilot;
623 N_Z_pilot = FG_N_Z_pilot;
624 P_dot_body = FG_P_dot_body;
625 Q_dot_body = FG_Q_dot_body;
626 R_dot_body = FG_R_dot_body;
627 V_north = FG_V_north;
630 V_north_rel_ground = FG_V_north_rel_ground;
631 V_east_rel_ground = FG_V_east_rel_ground;
632 V_down_rel_ground = FG_V_down_rel_ground;
633 V_north_airmass = FG_V_north_airmass;
634 V_east_airmass = FG_V_east_airmass;
635 V_down_airmass = FG_V_down_airmass;
636 V_north_rel_airmass = FG_V_north_rel_airmass;
637 V_east_rel_airmass = FG_V_east_rel_airmass;
638 V_down_rel_airmass = FG_V_down_rel_airmass;
645 V_rel_wind = FG_V_rel_wind;
646 V_true_kts = FG_V_true_kts;
647 V_rel_ground = FG_V_rel_ground;
648 V_inertial = FG_V_inertial;
649 V_ground_speed = FG_V_ground_speed;
650 V_equiv = FG_V_equiv;
651 V_equiv_kts = FG_V_equiv_kts;
652 V_calibrated = FG_V_calibrated;
653 V_calibrated_kts = FG_V_calibrated_kts;
657 P_local = FG_P_local;
658 Q_local = FG_Q_local;
659 R_local = FG_R_local;
660 P_total = FG_P_total;
661 Q_total = FG_Q_total;
662 R_total = FG_R_total;
663 Phi_dot = FG_Phi_dot;
664 Theta_dot = FG_Theta_dot;
665 Psi_dot = FG_Psi_dot;
666 Latitude_dot = FG_Latitude_dot;
667 Longitude_dot = FG_Longitude_dot;
668 Radius_dot = FG_Radius_dot;
669 Lat_geocentric = FG_Lat_geocentric;
670 Lon_geocentric = FG_Lon_geocentric;
671 Radius_to_vehicle = FG_Radius_to_vehicle;
672 Latitude = FG_Latitude;
673 Longitude = FG_Longitude;
674 Altitude = FG_Altitude;
678 T_local_to_body_11 = FG_T_local_to_body_11;
679 T_local_to_body_12 = FG_T_local_to_body_12;
680 T_local_to_body_13 = FG_T_local_to_body_13;
681 T_local_to_body_21 = FG_T_local_to_body_21;
682 T_local_to_body_22 = FG_T_local_to_body_22;
683 T_local_to_body_23 = FG_T_local_to_body_23;
684 T_local_to_body_31 = FG_T_local_to_body_31;
685 T_local_to_body_32 = FG_T_local_to_body_32;
686 T_local_to_body_33 = FG_T_local_to_body_33;
687 Gravity = FG_Gravity;
688 Centrifugal_relief = FG_Centrifugal_relief;
691 Alpha_dot = FG_Alpha_dot;
692 Beta_dot = FG_Beta_dot;
693 Cos_alpha = FG_Cos_alpha;
694 Sin_alpha = FG_Sin_alpha;
695 Cos_beta = FG_Cos_beta;
696 Sin_beta = FG_Sin_beta;
697 Cos_phi = FG_Cos_phi;
698 Sin_phi = FG_Sin_phi;
699 Cos_theta = FG_Cos_theta;
700 Sin_theta = FG_Sin_theta;
701 Cos_psi = FG_Cos_psi;
702 Sin_psi = FG_Sin_psi;
703 Gamma_vert_rad = FG_Gamma_vert_rad;
704 Gamma_horiz_rad = FG_Gamma_horiz_rad;
706 Density = FG_Density;
707 V_sound = FG_V_sound;
708 Mach_number = FG_Mach_number;
709 Static_pressure = FG_Static_pressure;
710 Total_pressure = FG_Total_pressure;
711 Impact_pressure = FG_Impact_pressure;
712 Dynamic_pressure = FG_Dynamic_pressure;
713 Static_temperature = FG_Static_temperature;
714 Total_temperature = FG_Total_temperature;
715 Sea_level_radius = FG_Sea_level_radius;
716 Earth_position_angle = FG_Earth_position_angle;
717 Runway_altitude = FG_Runway_altitude;
718 Runway_latitude = FG_Runway_latitude;
719 Runway_longitude = FG_Runway_longitude;
720 Runway_heading = FG_Runway_heading;
721 Radius_to_rwy = FG_Radius_to_rwy;
722 D_cg_north_of_rwy = FG_D_cg_north_of_rwy;
723 D_cg_east_of_rwy = FG_D_cg_east_of_rwy;
724 D_cg_above_rwy = FG_D_cg_above_rwy;
725 X_cg_rwy = FG_X_cg_rwy;
726 Y_cg_rwy = FG_Y_cg_rwy;
727 H_cg_rwy = FG_H_cg_rwy;
728 D_pilot_north_of_rwy = FG_D_pilot_north_of_rwy;
729 D_pilot_east_of_rwy = FG_D_pilot_east_of_rwy;
730 D_pilot_above_rwy = FG_D_pilot_above_rwy;
731 X_pilot_rwy = FG_X_pilot_rwy;
732 Y_pilot_rwy = FG_Y_pilot_rwy;
733 H_pilot_rwy = FG_H_pilot_rwy;
739 /* Convert from the LaRCsim generic_ struct to the fgFLIGHT struct */
740 int fgLaRCsim_2_Flight (fgFLIGHT *f) {
746 FG_Dx_pilot = Dx_pilot;
747 FG_Dy_pilot = Dy_pilot;
748 FG_Dz_pilot = Dz_pilot;
755 FG_F_north = F_north;
758 FG_F_X_aero = F_X_aero;
759 FG_F_Y_aero = F_Y_aero;
760 FG_F_Z_aero = F_Z_aero;
761 FG_F_X_engine = F_X_engine;
762 FG_F_Y_engine = F_Y_engine;
763 FG_F_Z_engine = F_Z_engine;
764 FG_F_X_gear = F_X_gear;
765 FG_F_Y_gear = F_Y_gear;
766 FG_F_Z_gear = F_Z_gear;
773 FG_M_l_aero = M_l_aero;
774 FG_M_m_aero = M_m_aero;
775 FG_M_n_aero = M_n_aero;
776 FG_M_l_engine = M_l_engine;
777 FG_M_m_engine = M_m_engine;
778 FG_M_n_engine = M_n_engine;
779 FG_M_l_gear = M_l_gear;
780 FG_M_m_gear = M_m_gear;
781 FG_M_n_gear = M_n_gear;
782 FG_V_dot_north = V_dot_north;
783 FG_V_dot_east = V_dot_east;
784 FG_V_dot_down = V_dot_down;
785 FG_U_dot_body = U_dot_body;
786 FG_V_dot_body = V_dot_body;
787 FG_W_dot_body = W_dot_body;
791 FG_A_X_pilot = A_X_pilot;
792 FG_A_Y_pilot = A_Y_pilot;
793 FG_A_Z_pilot = A_Z_pilot;
797 FG_N_X_pilot = N_X_pilot;
798 FG_N_Y_pilot = N_Y_pilot;
799 FG_N_Z_pilot = N_Z_pilot;
800 FG_P_dot_body = P_dot_body;
801 FG_Q_dot_body = Q_dot_body;
802 FG_R_dot_body = R_dot_body;
803 FG_V_north = V_north;
806 FG_V_north_rel_ground = V_north_rel_ground;
807 FG_V_east_rel_ground = V_east_rel_ground;
808 FG_V_down_rel_ground = V_down_rel_ground;
809 FG_V_north_airmass = V_north_airmass;
810 FG_V_east_airmass = V_east_airmass;
811 FG_V_down_airmass = V_down_airmass;
812 FG_V_north_rel_airmass = V_north_rel_airmass;
813 FG_V_east_rel_airmass = V_east_rel_airmass;
814 FG_V_down_rel_airmass = V_down_rel_airmass;
821 FG_V_rel_wind = V_rel_wind;
822 FG_V_true_kts = V_true_kts;
823 FG_V_rel_ground = V_rel_ground;
824 FG_V_inertial = V_inertial;
825 FG_V_ground_speed = V_ground_speed;
826 FG_V_equiv = V_equiv;
827 FG_V_equiv_kts = V_equiv_kts;
828 FG_V_calibrated = V_calibrated;
829 FG_V_calibrated_kts = V_calibrated_kts;
833 FG_P_local = P_local;
834 FG_Q_local = Q_local;
835 FG_R_local = R_local;
836 FG_P_total = P_total;
837 FG_Q_total = Q_total;
838 FG_R_total = R_total;
839 FG_Phi_dot = Phi_dot;
840 FG_Theta_dot = Theta_dot;
841 FG_Psi_dot = Psi_dot;
842 FG_Latitude_dot = Latitude_dot;
843 FG_Longitude_dot = Longitude_dot;
844 FG_Radius_dot = Radius_dot;
845 FG_Lat_geocentric = Lat_geocentric;
846 FG_Lon_geocentric = Lon_geocentric;
847 FG_Radius_to_vehicle = Radius_to_vehicle;
848 FG_Latitude = Latitude;
849 FG_Longitude = Longitude;
850 FG_Altitude = Altitude;
854 FG_T_local_to_body_11 = T_local_to_body_11;
855 FG_T_local_to_body_12 = T_local_to_body_12;
856 FG_T_local_to_body_13 = T_local_to_body_13;
857 FG_T_local_to_body_21 = T_local_to_body_21;
858 FG_T_local_to_body_22 = T_local_to_body_22;
859 FG_T_local_to_body_23 = T_local_to_body_23;
860 FG_T_local_to_body_31 = T_local_to_body_31;
861 FG_T_local_to_body_32 = T_local_to_body_32;
862 FG_T_local_to_body_33 = T_local_to_body_33;
863 FG_Gravity = Gravity;
864 FG_Centrifugal_relief = Centrifugal_relief;
867 FG_Alpha_dot = Alpha_dot;
868 FG_Beta_dot = Beta_dot;
869 FG_Cos_alpha = Cos_alpha;
870 FG_Sin_alpha = Sin_alpha;
871 FG_Cos_beta = Cos_beta;
872 FG_Sin_beta = Sin_beta;
873 FG_Cos_phi = Cos_phi;
874 FG_Sin_phi = Sin_phi;
875 FG_Cos_theta = Cos_theta;
876 FG_Sin_theta = Sin_theta;
877 FG_Cos_psi = Cos_psi;
878 FG_Sin_psi = Sin_psi;
879 FG_Gamma_vert_rad = Gamma_vert_rad;
880 FG_Gamma_horiz_rad = Gamma_horiz_rad;
882 FG_Density = Density;
883 FG_V_sound = V_sound;
884 FG_Mach_number = Mach_number;
885 FG_Static_pressure = Static_pressure;
886 FG_Total_pressure = Total_pressure;
887 FG_Impact_pressure = Impact_pressure;
888 FG_Dynamic_pressure = Dynamic_pressure;
889 FG_Static_temperature = Static_temperature;
890 FG_Total_temperature = Total_temperature;
891 FG_Sea_level_radius = Sea_level_radius;
892 FG_Earth_position_angle = Earth_position_angle;
893 FG_Runway_altitude = Runway_altitude;
894 FG_Runway_latitude = Runway_latitude;
895 FG_Runway_longitude = Runway_longitude;
896 FG_Runway_heading = Runway_heading;
897 FG_Radius_to_rwy = Radius_to_rwy;
898 FG_D_cg_north_of_rwy = D_cg_north_of_rwy;
899 FG_D_cg_east_of_rwy = D_cg_east_of_rwy;
900 FG_D_cg_above_rwy = D_cg_above_rwy;
901 FG_X_cg_rwy = X_cg_rwy;
902 FG_Y_cg_rwy = Y_cg_rwy;
903 FG_H_cg_rwy = H_cg_rwy;
904 FG_D_pilot_north_of_rwy = D_pilot_north_of_rwy;
905 FG_D_pilot_east_of_rwy = D_pilot_east_of_rwy;
906 FG_D_pilot_above_rwy = D_pilot_above_rwy;
907 FG_X_pilot_rwy = X_pilot_rwy;
908 FG_Y_pilot_rwy = Y_pilot_rwy;
909 FG_H_pilot_rwy = H_pilot_rwy;
914 /* Flight Gear Modification Log
917 * Revision 1.17 1998/02/23 19:07:58 curt
918 * Incorporated Durk's Astro/ tweaks. Includes unifying the sun position
919 * calculation code between sun display, and other FG sections that use this
920 * for things like lighting.
922 * Revision 1.16 1998/02/07 15:29:38 curt
923 * Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
924 * <chotchkiss@namg.us.anritsu.com>
926 * Revision 1.15 1998/01/22 22:03:47 curt
927 * Removed #include <sys/stat.h>
929 * Revision 1.14 1998/01/19 19:27:04 curt
930 * Merged in make system changes from Bob Kuehne <rpk@sgi.com>
931 * This should simplify things tremendously.
933 * Revision 1.13 1998/01/19 18:40:26 curt
934 * Tons of little changes to clean up the code and to remove fatal errors
935 * when building with the c++ compiler.
937 * Revision 1.12 1998/01/06 01:20:16 curt
938 * Tweaks to help building with MSVC++
940 * Revision 1.11 1998/01/05 22:19:26 curt
941 * #ifdef'd out some unused code that was problematic for MSVC++ to compile.
943 * Revision 1.10 1997/12/10 22:37:43 curt
944 * Prepended "fg" on the name of all global structures that didn't have it yet.
945 * i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
947 * Revision 1.9 1997/08/27 03:30:08 curt
948 * Changed naming scheme of basic shared structures.
950 * Revision 1.8 1997/06/21 17:12:50 curt
951 * Capitalized subdirectory names.
953 * Revision 1.7 1997/05/31 19:16:28 curt
954 * Elevator trim added.
956 * Revision 1.6 1997/05/31 04:13:53 curt
959 * Continuing work on the LaRCsim flight model integration.
960 * Added some MSFS-like keyboard input handling.
962 * Revision 1.5 1997/05/30 23:26:25 curt
963 * Added elevator/aileron controls.
965 * Revision 1.4 1997/05/30 19:30:15 curt
966 * The LaRCsim flight model is starting to look like it is working.
968 * Revision 1.3 1997/05/30 03:54:12 curt
969 * Made a bit more progress towards integrating the LaRCsim flight model.
971 * Revision 1.2 1997/05/29 22:39:59 curt
972 * Working on incorporating the LaRCsim flight model.
974 * Revision 1.1 1997/05/29 00:09:57 curt
975 * Initial Flight Gear revision.