2 // fg_init.cxx -- Flight Gear top level initialization routines
4 // Written by Curtis Olson, started August 1997.
6 // Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
8 // This program is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU General Public License as
10 // published by the Free Software Foundation; either version 2 of the
11 // License, or (at your option) any later version.
13 // This program is distributed in the hope that it will be useful, but
14 // WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the Free Software
20 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
30 // For BC 5.01 this must be included before OpenGL includes.
31 #ifdef FG_MATH_EXCEPTION_CLASH
36 #include <simgear/xgl/xgl.h>
41 // work around a stdc++ lib bug in some versions of linux, but doesn't
42 // seem to hurt to have this here for all versions of Linux.
44 # define _G_NO_EXTERN_TEMPLATES
47 #include <simgear/compiler.h>
51 #include <simgear/constants.h>
52 #include <simgear/debug/logstream.hxx>
53 #include <simgear/math/fg_geodesy.hxx>
54 #include <simgear/math/point3d.hxx>
55 #include <simgear/math/polar3d.hxx>
56 #include <simgear/misc/fgpath.hxx>
58 #include <Aircraft/aircraft.hxx>
59 #include <Airports/simple.hxx>
60 #include <Autopilot/auto_gui.hxx>
61 #include <Autopilot/newauto.hxx>
62 #include <Cockpit/cockpit.hxx>
63 #include <Cockpit/radiostack.hxx>
64 #include <Cockpit/panel.hxx>
65 #include <Cockpit/sp_panel.hxx>
66 #include <FDM/Balloon.h>
67 #include <FDM/External.hxx>
68 #include <FDM/JSBsim.hxx>
69 #include <FDM/LaRCsim.hxx>
70 #include <FDM/MagicCarpet.hxx>
71 #include <Include/general.hxx>
72 #include <Joystick/joystick.hxx>
73 #include <Objects/matlib.hxx>
74 #include <Navaids/fixlist.hxx>
75 #include <Navaids/ilslist.hxx>
76 #include <Navaids/navlist.hxx>
77 #include <Scenery/scenery.hxx>
78 #include <Scenery/tilemgr.hxx>
79 #include <Time/event.hxx>
80 #include <Time/fg_time.hxx>
81 #include <Time/light.hxx>
82 #include <Time/sunpos.hxx>
83 #include <Time/moonpos.hxx>
85 #ifndef FG_OLD_WEATHER
86 # include <WeatherCM/FGLocalWeatherDatabase.h>
88 # include <Weather/weather.hxx>
91 #include "fg_init.hxx"
93 #include "options.hxx"
96 #if defined(FX) && defined(XMESA)
100 FG_USING_STD(string);
102 extern const char *default_root;
105 // Read in configuration (file and command line)
106 bool fgInitConfig ( int argc, char **argv ) {
107 // Attempt to locate and parse a config file
108 // First check fg_root
109 FGPath config( current_options.get_fg_root() );
110 config.append( "system.fgfsrc" );
111 current_options.parse_config_file( config.str() );
113 // Next check home directory
114 char* envp = ::getenv( "HOME" );
115 if ( envp != NULL ) {
117 config.append( ".fgfsrc" );
118 current_options.parse_config_file( config.str() );
121 // Parse remaining command line options
122 // These will override anything specified in a config file
123 if ( current_options.parse_command_line(argc, argv) !=
124 fgOPTIONS::FG_OPTIONS_OK )
126 // Something must have gone horribly wrong with the command
127 // line parsing or maybe the user just requested help ... :-)
128 current_options.usage();
129 FG_LOG( FG_GENERAL, FG_ALERT, "\nExiting ...");
137 // Set initial position and orientation
138 bool fgInitPosition( void ) {
142 f = current_aircraft.fdm_state;
144 id = current_options.get_airport_id();
146 // set initial position from airport id
148 FGPath path( current_options.get_fg_root() );
149 path.append( "Airports" );
150 path.append( "simple.mk4" );
151 FGAirports airports( path.c_str() );
154 FG_LOG( FG_GENERAL, FG_INFO,
155 "Attempting to set starting position from airport code "
158 // FGPath inpath( current_options.get_fg_root() );
159 // inpath.append( "Airports" );
160 // inpath.append( "apt_simple" );
161 // airports.load( inpath.c_str() );
163 // FGPath outpath( current_options.get_fg_root() );
164 // outpath.append( "Airports" );
165 // outpath.append( "simple.gdbm" );
166 // airports.dump_gdbm( outpath.c_str() );
168 if ( ! airports.search( id, &a ) ) {
169 FG_LOG( FG_GENERAL, FG_ALERT,
170 "Failed to find " << id << " in database." );
173 f->set_Longitude( a.longitude * DEG_TO_RAD );
174 f->set_Latitude( a.latitude * DEG_TO_RAD );
177 // set initial position from default or command line coordinates
179 f->set_Longitude( current_options.get_lon() * DEG_TO_RAD );
180 f->set_Latitude( current_options.get_lat() * DEG_TO_RAD );
183 FG_LOG( FG_GENERAL, FG_INFO,
184 "starting altitude is = " << current_options.get_altitude() );
186 f->set_Altitude( current_options.get_altitude() * METER_TO_FEET );
187 fgFDMSetGroundElevation( current_options.get_flight_model(),
188 (f->get_Altitude() - 3.758099) * FEET_TO_METER );
190 FG_LOG( FG_GENERAL, FG_INFO,
191 "Initial position is: ("
192 << (f->get_Longitude() * RAD_TO_DEG) << ", "
193 << (f->get_Latitude() * RAD_TO_DEG) << ", "
194 << (f->get_Altitude() * FEET_TO_METER) << ")" );
200 // General house keeping initializations
201 bool fgInitGeneral( void ) {
204 #if defined(FX) && defined(XMESA)
205 char *mesa_win_state;
208 FG_LOG( FG_GENERAL, FG_INFO, "General Initialization" );
209 FG_LOG( FG_GENERAL, FG_INFO, "======= ==============" );
211 root = current_options.get_fg_root();
212 if ( ! root.length() ) {
213 // No root path set? Then bail ...
214 FG_LOG( FG_GENERAL, FG_ALERT,
215 "Cannot continue without environment variable FG_ROOT"
216 << "being defined." );
219 FG_LOG( FG_GENERAL, FG_INFO, "FG_ROOT = " << '"' << root << '"' << endl );
221 #if defined(FX) && defined(XMESA)
222 // initialize full screen flag
223 global_fullscreen = false;
224 if ( strstr ( general.get_glRenderer(), "Glide" ) ) {
225 // Test for the MESA_GLX_FX env variable
226 if ( (mesa_win_state = getenv( "MESA_GLX_FX" )) != NULL) {
227 // test if we are fullscreen mesa/glide
228 if ( (mesa_win_state[0] == 'f') ||
229 (mesa_win_state[0] == 'F') ) {
230 global_fullscreen = true;
240 // This is the top level init routine which calls all the other
241 // initialization routines. If you are adding a subsystem to flight
242 // gear, its initialization call should located in this routine.
243 // Returns non-zero if a problem encountered.
244 bool fgInitSubsystems( void ) {
245 fgLIGHT *l = &cur_light_params;
246 FGTime *t = FGTime::cur_time_params;
248 FG_LOG( FG_GENERAL, FG_INFO, "Initialize Subsystems");
249 FG_LOG( FG_GENERAL, FG_INFO, "========== ==========");
251 if ( current_options.get_flight_model() == FGInterface::FG_LARCSIM ) {
252 cur_fdm_state = new FGLaRCsim;
253 } else if ( current_options.get_flight_model() == FGInterface::FG_JSBSIM ) {
254 cur_fdm_state = new FGJSBsim;
255 } else if ( current_options.get_flight_model() ==
256 FGInterface::FG_BALLOONSIM ) {
257 cur_fdm_state = new FGBalloonSim;
258 } else if ( current_options.get_flight_model() ==
259 FGInterface::FG_MAGICCARPET ) {
260 cur_fdm_state = new FGMagicCarpet;
261 } else if ( current_options.get_flight_model() ==
262 FGInterface::FG_EXTERNAL ) {
263 cur_fdm_state = new FGExternal;
265 FG_LOG( FG_GENERAL, FG_ALERT,
266 "No flight model, can't init aircraft" );
270 // allocates structures so must happen before any of the flight
271 // model or control parameters are set
272 fgAircraftInit(); // In the future this might not be the case.
274 // set the initial position
277 // Initialize the material property lib
278 FGPath mpath( current_options.get_fg_root() );
279 mpath.append( "materials" );
280 if ( material_lib.load( mpath.str() ) ) {
282 FG_LOG( FG_GENERAL, FG_ALERT, "Error loading material lib!" );
286 // Initialize the Scenery Management subsystem
287 if ( fgSceneryInit() ) {
288 // Material lib initialized ok.
290 FG_LOG( FG_GENERAL, FG_ALERT, "Error in Scenery initialization!" );
294 if( global_tile_mgr.init() ) {
295 // Load the local scenery data
296 global_tile_mgr.update();
298 FG_LOG( FG_GENERAL, FG_ALERT, "Error in Tile Manager initialization!" );
302 FG_LOG( FG_GENERAL, FG_DEBUG,
303 "Current terrain elevation after tile mgr init " <<
306 // Calculate ground elevation at starting point (we didn't have
307 // tmp_abs_view_pos calculated when fgTileMgrUpdate() was called above
309 // calculalate a cartesian point somewhere along the line between
310 // the center of the earth and our view position. Doesn't have to
311 // be the exact elevation (this is good because we don't know it
314 // now handled inside of the fgTileMgrUpdate()
317 geod_pos = Point3D( cur_fdm_state->get_Longitude(), cur_fdm_state->get_Latitude(), 0.0);
318 tmp_abs_view_pos = fgGeodToCart(geod_pos);
320 FG_LOG( FG_GENERAL, FG_DEBUG,
321 "Initial abs_view_pos = " << tmp_abs_view_pos );
323 fgTileMgrCurElev( cur_fdm_state->get_Longitude(), cur_fdm_state->get_Latitude(),
325 FG_LOG( FG_GENERAL, FG_DEBUG,
326 "Altitude after update " << scenery.cur_elev );
329 fgFDMSetGroundElevation( current_options.get_flight_model(),
332 // Reset our altitude if we are below ground
333 FG_LOG( FG_GENERAL, FG_DEBUG, "Current altitude = " << cur_fdm_state->get_Altitude() );
334 FG_LOG( FG_GENERAL, FG_DEBUG, "Current runway altitude = " <<
335 cur_fdm_state->get_Runway_altitude() );
337 if ( cur_fdm_state->get_Altitude() < cur_fdm_state->get_Runway_altitude() + 3.758099) {
338 cur_fdm_state->set_Altitude( cur_fdm_state->get_Runway_altitude() + 3.758099 );
341 FG_LOG( FG_GENERAL, FG_INFO,
342 "Updated position (after elevation adj): ("
343 << (cur_fdm_state->get_Latitude() * RAD_TO_DEG) << ", "
344 << (cur_fdm_state->get_Longitude() * RAD_TO_DEG) << ", "
345 << (cur_fdm_state->get_Altitude() * FEET_TO_METER) << ")" );
347 // We need to calculate a few more values here that would normally
348 // be calculated by the FDM so that the current_view.UpdateViewMath()
349 // routine doesn't get hosed.
351 double sea_level_radius_meters;
353 // Set the FG variables first
354 fgGeodToGeoc( cur_fdm_state->get_Latitude(), cur_fdm_state->get_Altitude(),
355 &sea_level_radius_meters, &lat_geoc);
356 cur_fdm_state->set_Geocentric_Position( lat_geoc, cur_fdm_state->get_Longitude(),
357 cur_fdm_state->get_Altitude() +
358 (sea_level_radius_meters * METER_TO_FEET) );
359 cur_fdm_state->set_Sea_level_radius( sea_level_radius_meters * METER_TO_FEET );
361 cur_fdm_state->set_sin_cos_longitude(cur_fdm_state->get_Longitude());
362 cur_fdm_state->set_sin_cos_latitude(cur_fdm_state->get_Latitude());
364 cur_fdm_state->set_sin_lat_geocentric(sin(lat_geoc));
365 cur_fdm_state->set_cos_lat_geocentric(cos(lat_geoc));
367 // The following section sets up the flight model EOM parameters
368 // and should really be read in from one or more files.
371 cur_fdm_state->set_Velocities_Local( current_options.get_uBody(),
372 current_options.get_vBody(),
373 current_options.get_wBody());
375 // Initial Orientation
376 cur_fdm_state->set_Euler_Angles( current_options.get_roll() * DEG_TO_RAD,
377 current_options.get_pitch() * DEG_TO_RAD,
378 current_options.get_heading() * DEG_TO_RAD );
380 // Initial Angular Body rates
381 cur_fdm_state->set_Omega_Body( 7.206685E-05, 0.0, 9.492658E-05 );
383 cur_fdm_state->set_Earth_position_angle( 0.0 );
385 // Mass properties and geometry values
386 cur_fdm_state->set_Inertias( 8.547270E+01,
387 1.048000E+03, 3.000000E+03, 3.530000E+03, 0.000000E+00 );
389 // CG position w.r.t. ref. point
390 cur_fdm_state->set_CG_Position( 0.0, 0.0, 0.0 );
392 // Initialize the event manager
393 global_events.Init();
395 // Output event stats every 60 seconds
396 global_events.Register( "fgEVENT_MGR::PrintStats()",
397 fgMethodCallback<fgEVENT_MGR>( &global_events,
398 &fgEVENT_MGR::PrintStats),
399 fgEVENT::FG_EVENT_READY, 60000 );
401 // Initialize view parameters
402 FG_LOG( FG_GENERAL, FG_DEBUG, "Before current_view.init()");
405 FG_LOG( FG_GENERAL, FG_DEBUG, "After current_view.init()");
406 current_view.UpdateViewMath(*cur_fdm_state);
407 pilot_view.UpdateViewMath(*cur_fdm_state);
408 FG_LOG( FG_GENERAL, FG_DEBUG, " abs_view_pos = " << current_view.get_abs_view_pos());
409 // current_view.UpdateWorldToEye(f);
411 // Initialize the planetary subsystem
412 // global_events.Register( "fgPlanetsInit()", fgPlanetsInit,
413 // fgEVENT::FG_EVENT_READY, 600000);
415 // Initialize the sun's position
416 // global_events.Register( "fgSunInit()", fgSunInit,
417 // fgEVENT::FG_EVENT_READY, 30000 );
419 // Intialize the moon's position
420 // global_events.Register( "fgMoonInit()", fgMoonInit,
421 // fgEVENT::FG_EVENT_READY, 600000 );
423 // fgUpdateSunPos() needs a few position and view parameters set
424 // so it can calculate local relative sun angle and a few other
425 // things for correctly orienting the sky.
428 global_events.Register( "fgUpdateSunPos()", fgUpdateSunPos,
429 fgEVENT::FG_EVENT_READY, 60000);
430 global_events.Register( "fgUpdateMoonPos()", fgUpdateMoonPos,
431 fgEVENT::FG_EVENT_READY, 60000);
433 // Initialize Lighting interpolation tables
436 // update the lighting parameters (based on sun angle)
437 global_events.Register( "fgLight::Update()",
438 fgMethodCallback<fgLIGHT>( &cur_light_params,
440 fgEVENT::FG_EVENT_READY, 30000 );
441 // update the current timezone each 30 minutes
442 global_events.Register( "fgTIME::updateLocal()",
443 fgMethodCallback<FGTime>(FGTime::cur_time_params,
444 &FGTime::updateLocal),
445 fgEVENT::FG_EVENT_READY, 1800000);
447 // Initialize the weather modeling subsystem
448 #ifndef FG_OLD_WEATHER
449 // Initialize the WeatherDatabase
450 FG_LOG(FG_GENERAL, FG_INFO, "Creating LocalWeatherDatabase");
452 sgSetVec3( position, current_aircraft.fdm_state->get_Latitude(),
453 current_aircraft.fdm_state->get_Longitude(),
454 current_aircraft.fdm_state->get_Altitude() * FEET_TO_METER );
455 FGLocalWeatherDatabase::theFGLocalWeatherDatabase =
456 new FGLocalWeatherDatabase( position );
457 // cout << theFGLocalWeatherDatabase << endl;
458 // cout << "visibility = "
459 // << theFGLocalWeatherDatabase->getWeatherVisibility() << endl;
461 WeatherDatabase = FGLocalWeatherDatabase::theFGLocalWeatherDatabase;
463 // register the periodic update of the weather
464 global_events.Register( "weather update", fgUpdateWeatherDatabase,
465 fgEVENT::FG_EVENT_READY, 30000);
467 current_weather.Init();
470 // Initialize vor/ndb/ils/fix list management and query systems
471 FG_LOG(FG_GENERAL, FG_INFO, "Loading Navaids");
473 FG_LOG(FG_GENERAL, FG_INFO, " VOR/NDB");
474 current_navlist = new FGNavList;
475 FGPath p_nav( current_options.get_fg_root() );
476 p_nav.append( "Navaids/default.nav" );
477 current_navlist->init( p_nav );
479 FG_LOG(FG_GENERAL, FG_INFO, " ILS");
480 current_ilslist = new FGILSList;
481 FGPath p_ils( current_options.get_fg_root() );
482 p_ils.append( "Navaids/default.ils" );
483 current_ilslist->init( p_ils );
485 FG_LOG(FG_GENERAL, FG_INFO, " Fixes");
486 current_fixlist = new FGFixList;
487 FGPath p_fix( current_options.get_fg_root() );
488 p_fix.append( "Navaids/default.fix" );
489 current_fixlist->init( p_fix );
491 // Initialize the underlying radio stack model
492 current_radiostack = new FGRadioStack;
494 current_radiostack->set_nav1_freq( 117.30 );
495 current_radiostack->set_nav1_alt_freq( 110.30 );
496 current_radiostack->set_nav1_sel_radial( 119.0 );
498 current_radiostack->set_nav2_freq( 111.80 );
499 current_radiostack->set_nav2_alt_freq( 115.70 );
500 current_radiostack->set_nav2_sel_radial( 029.0 );
502 current_radiostack->set_adf_freq( 266.0 );
505 // This block of settings are Alex's defaults for San Diego
506 current_radiostack->set_nav1_freq( 111.70 );
507 current_radiostack->set_nav1_alt_freq( 115.30 );
508 current_radiostack->set_nav1_sel_radial( 280.0 );
509 current_radiostack->set_nav2_freq( 117.80 );
510 current_radiostack->set_nav2_alt_freq( 114.00 );
511 current_radiostack->set_nav2_sel_radial( 68.0 );
512 current_radiostack->set_adf_freq( 210.0 );
513 // End of Alex's custom settings
516 current_radiostack->search( cur_fdm_state->get_Longitude(),
517 cur_fdm_state->get_Latitude(),
518 cur_fdm_state->get_Altitude() * FEET_TO_METER );
520 current_radiostack->update( cur_fdm_state->get_Longitude(),
521 cur_fdm_state->get_Latitude(),
522 cur_fdm_state->get_Altitude() * FEET_TO_METER );
524 // Search radio database once per second
525 global_events.Register( "fgRadioSearch()", fgRadioSearch,
526 fgEVENT::FG_EVENT_READY, 1000);
529 // Initialize the Cockpit subsystem
530 if( fgCockpitInit( ¤t_aircraft )) {
531 // Cockpit initialized ok.
533 FG_LOG( FG_GENERAL, FG_ALERT, "Error in Cockpit initialization!" );
537 // Initialize the flight model subsystem data structures base on
540 // fgFDMInit( current_options.get_flight_model(), cur_fdm_state,
541 // 1.0 / current_options.get_model_hz() );
542 cur_fdm_state->init( 1.0 / current_options.get_model_hz() );
544 // I'm just sticking this here for now, it should probably move
546 scenery.cur_elev = cur_fdm_state->get_Runway_altitude() * FEET_TO_METER;
548 if ( cur_fdm_state->get_Altitude() < cur_fdm_state->get_Runway_altitude() + 3.758099) {
549 cur_fdm_state->set_Altitude( cur_fdm_state->get_Runway_altitude() + 3.758099 );
552 FG_LOG( FG_GENERAL, FG_INFO,
553 "Updated position (after elevation adj): ("
554 << (cur_fdm_state->get_Latitude() * RAD_TO_DEG) << ", "
555 << (cur_fdm_state->get_Longitude() * RAD_TO_DEG) << ", "
556 << (cur_fdm_state->get_Altitude() * FEET_TO_METER) << ")" );
557 // end of thing that I just stuck in that I should probably move
560 if ( fgJoystickInit() ) {
561 // Joystick initialized ok.
563 FG_LOG( FG_GENERAL, FG_ALERT, "Error in Joystick initialization!" );
567 current_autopilot = new FGAutopilot;
568 current_autopilot->init();
570 // initialize the gui parts of the autopilot
576 // Initialize I/O channels
577 #if ! defined( MACOS )
581 // Initialize the 2D panel.
582 current_panel = fgCreateSmallSinglePropPanel(0, 0, 1024, 768);
584 FG_LOG( FG_GENERAL, FG_INFO, endl);
590 void fgReInitSubsystems( void )
592 FGTime *t = FGTime::cur_time_params;
594 int toggle_pause = t->getPause();
597 t->togglePauseMode();
600 if( global_tile_mgr.init() ) {
601 // Load the local scenery data
602 global_tile_mgr.update();
604 FG_LOG( FG_GENERAL, FG_ALERT, "Error in Tile Manager initialization!" );
607 fgFDMSetGroundElevation( current_options.get_flight_model(),
610 // Reset our altitude if we are below ground
611 FG_LOG( FG_GENERAL, FG_DEBUG, "Current altitude = " << cur_fdm_state->get_Altitude() );
612 FG_LOG( FG_GENERAL, FG_DEBUG, "Current runway altitude = " <<
613 cur_fdm_state->get_Runway_altitude() );
615 if ( cur_fdm_state->get_Altitude() < cur_fdm_state->get_Runway_altitude() + 3.758099) {
616 cur_fdm_state->set_Altitude( cur_fdm_state->get_Runway_altitude() + 3.758099 );
618 double sea_level_radius_meters;
620 // Set the FG variables first
621 fgGeodToGeoc( cur_fdm_state->get_Latitude(), cur_fdm_state->get_Altitude(),
622 &sea_level_radius_meters, &lat_geoc);
623 cur_fdm_state->set_Geocentric_Position( lat_geoc, cur_fdm_state->get_Longitude(),
624 cur_fdm_state->get_Altitude() +
625 (sea_level_radius_meters * METER_TO_FEET) );
626 cur_fdm_state->set_Sea_level_radius( sea_level_radius_meters * METER_TO_FEET );
628 cur_fdm_state->set_sin_cos_longitude(cur_fdm_state->get_Longitude());
629 cur_fdm_state->set_sin_cos_latitude(cur_fdm_state->get_Latitude());
631 cur_fdm_state->set_sin_lat_geocentric(sin(lat_geoc));
632 cur_fdm_state->set_cos_lat_geocentric(cos(lat_geoc));
634 // The following section sets up the flight model EOM parameters
635 // and should really be read in from one or more files.
638 cur_fdm_state->set_Velocities_Local( current_options.get_uBody(),
639 current_options.get_vBody(),
640 current_options.get_wBody());
642 // Initial Orientation
643 cur_fdm_state->set_Euler_Angles( current_options.get_roll() * DEG_TO_RAD,
644 current_options.get_pitch() * DEG_TO_RAD,
645 current_options.get_heading() * DEG_TO_RAD );
647 // Initial Angular Body rates
648 cur_fdm_state->set_Omega_Body( 7.206685E-05, 0.0, 9.492658E-05 );
650 cur_fdm_state->set_Earth_position_angle( 0.0 );
652 // Mass properties and geometry values
653 cur_fdm_state->set_Inertias( 8.547270E+01,
654 1.048000E+03, 3.000000E+03, 3.530000E+03, 0.000000E+00 );
656 // CG position w.r.t. ref. point
657 cur_fdm_state->set_CG_Position( 0.0, 0.0, 0.0 );
659 // Initialize view parameters
660 current_view.set_view_offset( 0.0 );
661 current_view.set_goal_view_offset( 0.0 );
662 pilot_view.set_view_offset( 0.0 );
663 pilot_view.set_goal_view_offset( 0.0 );
665 FG_LOG( FG_GENERAL, FG_DEBUG, "After current_view.init()");
666 current_view.UpdateViewMath(*cur_fdm_state);
667 pilot_view.UpdateViewMath(*cur_fdm_state);
668 FG_LOG( FG_GENERAL, FG_DEBUG, " abs_view_pos = " << current_view.get_abs_view_pos());
670 // fgFDMInit( current_options.get_flight_model(), cur_fdm_state,
671 // 1.0 / current_options.get_model_hz() );
672 cur_fdm_state->init( 1.0 / current_options.get_model_hz() );
674 scenery.cur_elev = cur_fdm_state->get_Runway_altitude() * FEET_TO_METER;
676 if ( cur_fdm_state->get_Altitude() < cur_fdm_state->get_Runway_altitude() + 3.758099) {
677 cur_fdm_state->set_Altitude( cur_fdm_state->get_Runway_altitude() + 3.758099 );
680 controls.reset_all();
681 current_autopilot->reset();
684 t->togglePauseMode();