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flightgear/src/Main/fg_init.cxx

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// fg_init.cxx -- Flight Gear top level initialization routines
//
// Written by Curtis Olson, started August 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.
//
//
// $Id$
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
// For BC 5.01 this must be included before OpenGL includes.
#ifdef FG_MATH_EXCEPTION_CLASH
# include <math.h>
#endif
#include <GL/glut.h>
#include <simgear/xgl/xgl.h>
#include <stdio.h>
#include <stdlib.h>
// work around a stdc++ lib bug in some versions of linux, but doesn't
// seem to hurt to have this here for all versions of Linux.
#ifdef linux
# define _G_NO_EXTERN_TEMPLATES
#endif
#include <simgear/compiler.h>
#include STL_STRING
#include <simgear/constants.h>
#include <simgear/debug/logstream.hxx>
#include <simgear/math/point3d.hxx>
#include <simgear/math/polar3d.hxx>
#include <simgear/math/sg_geodesy.hxx>
#include <simgear/misc/fgpath.hxx>
#include <simgear/timing/sg_time.hxx>
#include <Aircraft/aircraft.hxx>
#include <Airports/runways.hxx>
#include <Airports/simple.hxx>
#include <Autopilot/auto_gui.hxx>
#include <Autopilot/newauto.hxx>
#include <Cockpit/cockpit.hxx>
#include <Cockpit/radiostack.hxx>
#include <Cockpit/panel.hxx>
#include <Cockpit/panel_io.hxx>
#include <FDM/ADA.hxx>
#include <FDM/Balloon.h>
#include <FDM/External.hxx>
#include <FDM/JSBSim.hxx>
#include <FDM/LaRCsim.hxx>
#include <FDM/MagicCarpet.hxx>
#include <Include/general.hxx>
#include <Joystick/joystick.hxx>
#include <Objects/matlib.hxx>
#include <Navaids/fixlist.hxx>
#include <Navaids/ilslist.hxx>
#include <Navaids/navlist.hxx>
#include <Scenery/scenery.hxx>
#include <Scenery/tilemgr.hxx>
#include <Time/event.hxx>
#include <Time/light.hxx>
#include <Time/sunpos.hxx>
#include <Time/moonpos.hxx>
#include <Time/tmp.hxx>
#ifndef FG_OLD_WEATHER
# include <WeatherCM/FGLocalWeatherDatabase.h>
#else
# include <Weather/weather.hxx>
#endif
#include "fg_init.hxx"
#include "fg_io.hxx"
#include "globals.hxx"
#include "bfi.hxx"
#if defined(FX) && defined(XMESA)
#include <GL/xmesa.h>
#endif
FG_USING_STD(string);
extern const char *default_root;
// Read in configuration (file and command line) and just set fg_root
bool fgInitFGRoot ( int argc, char **argv ) {
// Attempt to locate and parse a config file
// First check fg_root
FGPath config( globals->get_options()->get_fg_root() );
config.append( "system.fgfsrc" );
globals->get_options()->scan_config_file_for_root( config.str() );
// Next check home directory
char* envp = ::getenv( "HOME" );
if ( envp != NULL ) {
config.set( envp );
config.append( ".fgfsrc" );
globals->get_options()->scan_config_file_for_root( config.str() );
}
// Parse remaining command line options
// These will override anything specified in a config file
globals->get_options()->scan_command_line_for_root(argc, argv);
return true;
}
// Read in configuration (file and command line)
bool fgInitConfig ( int argc, char **argv ) {
// Attempt to locate and parse a config file
// First check fg_root
FGPath config( globals->get_options()->get_fg_root() );
config.append( "system.fgfsrc" );
globals->get_options()->parse_config_file( config.str() );
// Next check home directory
char* envp = ::getenv( "HOME" );
if ( envp != NULL ) {
config.set( envp );
config.append( ".fgfsrc" );
globals->get_options()->parse_config_file( config.str() );
}
// Parse remaining command line options
// These will override anything specified in a config file
if ( globals->get_options()->parse_command_line(argc, argv) !=
FGOptions::FG_OPTIONS_OK )
{
// Something must have gone horribly wrong with the command
// line parsing or maybe the user just requested help ... :-)
globals->get_options()->usage();
FG_LOG( FG_GENERAL, FG_ALERT, "\nExiting ...");
return false;
}
return true;
}
// find basic airport location info from airport database
bool fgFindAirportID( const string& id, FGAirport *a ) {
if ( id.length() ) {
FGPath path( globals->get_options()->get_fg_root() );
path.append( "Airports" );
path.append( "simple.mk4" );
FGAirports airports( path.c_str() );
FG_LOG( FG_GENERAL, FG_INFO, "Searching for airport code = " << id );
if ( ! airports.search( id, a ) ) {
FG_LOG( FG_GENERAL, FG_ALERT,
"Failed to find " << id << " in " << path.str() );
return false;
}
} else {
return false;
}
FG_LOG( FG_GENERAL, FG_INFO,
"Position for " << id << " is ("
<< a->longitude << ", "
<< a->latitude << ")" );
return true;
}
// Set current_options lon/lat given an airport id
bool fgSetPosFromAirportID( const string& id ) {
FGAirport a;
// double lon, lat;
FG_LOG( FG_GENERAL, FG_INFO,
"Attempting to set starting position from airport code " << id );
if ( fgFindAirportID( id, &a ) ) {
globals->get_options()->set_lon( a.longitude );
globals->get_options()->set_lat( a.latitude );
current_properties.setDoubleValue("/position/longitude",
a.longitude);
current_properties.setDoubleValue("/position/latitude",
a.latitude);
FG_LOG( FG_GENERAL, FG_INFO,
"Position for " << id << " is ("
<< a.longitude << ", "
<< a.latitude << ")" );
return true;
} else {
return false;
}
}
// Set current_options lon/lat given an airport id and heading (degrees)
bool fgSetPosFromAirportIDandHdg( const string& id, double tgt_hdg ) {
FGRunway r;
FGRunway found_r;
double found_dir;
if ( id.length() ) {
// set initial position from runway and heading
FGPath path( globals->get_options()->get_fg_root() );
path.append( "Airports" );
path.append( "runways.mk4" );
FGRunways runways( path.c_str() );
FG_LOG( FG_GENERAL, FG_INFO,
"Attempting to set starting position from runway code "
<< id << " heading " << tgt_hdg );
// FGPath inpath( globals->get_options()->get_fg_root() );
// inpath.append( "Airports" );
// inpath.append( "apt_simple" );
// airports.load( inpath.c_str() );
// FGPath outpath( globals->get_options()->get_fg_root() );
// outpath.append( "Airports" );
// outpath.append( "simple.gdbm" );
// airports.dump_gdbm( outpath.c_str() );
if ( ! runways.search( id, &r ) ) {
FG_LOG( FG_GENERAL, FG_ALERT,
"Failed to find " << id << " in database." );
return false;
}
double diff;
double min_diff = 360.0;
while ( r.id == id ) {
// forward direction
diff = tgt_hdg - r.heading;
while ( diff < -180.0 ) { diff += 360.0; }
while ( diff > 180.0 ) { diff -= 360.0; }
diff = fabs(diff);
FG_LOG( FG_GENERAL, FG_INFO,
"Runway " << r.rwy_no << " heading = " << r.heading <<
" diff = " << diff );
if ( diff < min_diff ) {
min_diff = diff;
found_r = r;
found_dir = 0;
}
// reverse direction
diff = tgt_hdg - r.heading - 180.0;
while ( diff < -180.0 ) { diff += 360.0; }
while ( diff > 180.0 ) { diff -= 360.0; }
diff = fabs(diff);
FG_LOG( FG_GENERAL, FG_INFO,
"Runway -" << r.rwy_no << " heading = " <<
r.heading + 180.0 <<
" diff = " << diff );
if ( diff < min_diff ) {
min_diff = diff;
found_r = r;
found_dir = 180.0;
}
runways.next( &r );
}
FG_LOG( FG_GENERAL, FG_INFO, "closest runway = " << found_r.rwy_no
<< " + " << found_dir );
} else {
return false;
}
double heading = found_r.heading + found_dir;
while ( heading >= 360.0 ) { heading -= 360.0; }
double lat2, lon2, az2;
double azimuth = found_r.heading + found_dir + 180.0;
while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
FG_LOG( FG_GENERAL, FG_INFO,
"runway = " << found_r.lon << ", " << found_r.lat
<< " length = " << found_r.length * FEET_TO_METER * 0.5
<< " heading = " << azimuth );
geo_direct_wgs_84 ( 0, found_r.lat, found_r.lon,
azimuth, found_r.length * FEET_TO_METER * 0.5 - 5.0,
&lat2, &lon2, &az2 );
globals->get_options()->set_lon( lon2 );
globals->get_options()->set_lat( lat2 );
globals->get_options()->set_heading( heading );
current_properties.setDoubleValue("/position/longitude", lon2);
current_properties.setDoubleValue("/position/latitude", lat2);
current_properties.setDoubleValue("/orientation/heading", heading);
FG_LOG( FG_GENERAL, FG_INFO,
"Position for " << id << " is ("
<< lon2 << ", "
<< lat2 << ") new heading is "
<< heading );
return true;
}
// Set initial position and orientation
bool fgInitPosition( void ) {
FGInterface *f = current_aircraft.fdm_state;
string id = globals->get_options()->get_airport_id();
// set initial position from default or command line coordinates
f->set_Longitude( globals->get_options()->get_lon() * DEG_TO_RAD );
f->set_Latitude( globals->get_options()->get_lat() * DEG_TO_RAD );
if ( scenery.cur_elev > globals->get_options()->get_altitude() - 1) {
globals->get_options()->set_altitude( scenery.cur_elev + 1 );
}
FG_LOG( FG_GENERAL, FG_INFO,
"starting altitude is = " << globals->get_options()->get_altitude() );
f->set_Altitude( globals->get_options()->get_altitude() * METER_TO_FEET );
// fgFDMSetGroundElevation( globals->get_options()->get_flight_model(),
// f->get_Altitude() * FEET_TO_METER );
#if 0
current_properties.setDoubleValue("/position/longitude",
f->get_Longitude() * RAD_TO_DEG);
current_properties.setDoubleValue("/position/latitude",
f->get_Latitude() * RAD_TO_DEG);
current_properties.setDoubleValue("/position/altitude",
f->get_Altitude() * RAD_TO_DEG);
#endif
FG_LOG( FG_GENERAL, FG_INFO,
"Initial position is: ("
<< (f->get_Longitude() * RAD_TO_DEG) << ", "
<< (f->get_Latitude() * RAD_TO_DEG) << ", "
<< (f->get_Altitude() * FEET_TO_METER) << ")" );
return true;
}
// General house keeping initializations
bool fgInitGeneral( void ) {
string root;
#if defined(FX) && defined(XMESA)
char *mesa_win_state;
#endif
FG_LOG( FG_GENERAL, FG_INFO, "General Initialization" );
FG_LOG( FG_GENERAL, FG_INFO, "======= ==============" );
root = globals->get_options()->get_fg_root();
if ( ! root.length() ) {
// No root path set? Then bail ...
FG_LOG( FG_GENERAL, FG_ALERT,
"Cannot continue without environment variable FG_ROOT"
<< "being defined." );
exit(-1);
}
FG_LOG( FG_GENERAL, FG_INFO, "FG_ROOT = " << '"' << root << '"' << endl );
#if defined(FX) && defined(XMESA)
// initialize full screen flag
global_fullscreen = false;
if ( strstr ( general.get_glRenderer(), "Glide" ) ) {
// Test for the MESA_GLX_FX env variable
if ( (mesa_win_state = getenv( "MESA_GLX_FX" )) != NULL) {
// test if we are fullscreen mesa/glide
if ( (mesa_win_state[0] == 'f') ||
(mesa_win_state[0] == 'F') ) {
global_fullscreen = true;
}
}
}
#endif
return true;
}
// set initial aircraft speed
bool fgVelocityInit( void ) {
switch(globals->get_options()->get_speedset()) {
case 1: //FG_VC
current_aircraft.fdm_state->set_V_calibrated_kts(
globals->get_options()->get_vc() );
break;
case 2: //FG_MACH
current_aircraft.fdm_state->set_Mach_number(
globals->get_options()->get_mach() );
break;
case 3: //FG_VTUVW
current_aircraft.fdm_state->set_Velocities_Wind_Body(
globals->get_options()->get_uBody(),
globals->get_options()->get_vBody(),
globals->get_options()->get_wBody() );
break;
case 4: //FG_VTNED
current_aircraft.fdm_state->set_Velocities_Local(
globals->get_options()->get_vNorth(),
globals->get_options()->get_vEast(),
globals->get_options()->get_vDown() );
break;
default:
current_aircraft.fdm_state->set_V_calibrated_kts( 0.0 );
}
return true;
}
// This is the top level init routine which calls all the other
// initialization routines. If you are adding a subsystem to flight
// gear, its initialization call should located in this routine.
// Returns non-zero if a problem encountered.
bool fgInitSubsystems( void ) {
fgLIGHT *l = &cur_light_params;
FG_LOG( FG_GENERAL, FG_INFO, "Initialize Subsystems");
FG_LOG( FG_GENERAL, FG_INFO, "========== ==========");
// Initialize the material property lib
FGPath mpath( globals->get_options()->get_fg_root() );
mpath.append( "materials" );
if ( material_lib.load( mpath.str() ) ) {
} else {
FG_LOG( FG_GENERAL, FG_ALERT, "Error loading material lib!" );
exit(-1);
}
// Initialize the Scenery Management subsystem
if ( fgSceneryInit() ) {
// Material lib initialized ok.
} else {
FG_LOG( FG_GENERAL, FG_ALERT, "Error in Scenery initialization!" );
exit(-1);
}
if ( global_tile_mgr.init() ) {
// Load the local scenery data
global_tile_mgr.update( globals->get_options()->get_lon(),
globals->get_options()->get_lat() );
} else {
FG_LOG( FG_GENERAL, FG_ALERT, "Error in Tile Manager initialization!" );
exit(-1);
}
FG_LOG( FG_GENERAL, FG_DEBUG,
"Current terrain elevation after tile mgr init " <<
scenery.cur_elev );
if ( globals->get_options()->get_flight_model() == FGInterface::FG_LARCSIM ) {
cur_fdm_state = new FGLaRCsim;
} else if ( globals->get_options()->get_flight_model() == FGInterface::FG_JSBSIM ) {
cur_fdm_state = new FGJSBsim;
} else if ( globals->get_options()->get_flight_model() == FGInterface::FG_ADA ) {
cur_fdm_state = new FGADA;
} else if ( globals->get_options()->get_flight_model() ==
FGInterface::FG_BALLOONSIM ) {
cur_fdm_state = new FGBalloonSim;
} else if ( globals->get_options()->get_flight_model() ==
FGInterface::FG_MAGICCARPET ) {
cur_fdm_state = new FGMagicCarpet;
} else if ( globals->get_options()->get_flight_model() ==
FGInterface::FG_EXTERNAL ) {
cur_fdm_state = new FGExternal;
} else {
FG_LOG( FG_GENERAL, FG_ALERT,
"No flight model, can't init aircraft" );
exit(-1);
}
// allocates structures so must happen before any of the flight
// model or control parameters are set
fgAircraftInit(); // In the future this might not be the case.
fgFDMSetGroundElevation( globals->get_options()->get_flight_model(),
scenery.cur_elev );
// set the initial position
fgInitPosition();
// Calculate ground elevation at starting point (we didn't have
// tmp_abs_view_pos calculated when fgTileMgrUpdate() was called above
//
// calculalate a cartesian point somewhere along the line between
// the center of the earth and our view position. Doesn't have to
// be the exact elevation (this is good because we don't know it
// yet :-)
// now handled inside of the fgTileMgrUpdate()
// Reset our altitude if we are below ground
FG_LOG( FG_GENERAL, FG_DEBUG, "Current altitude = "
<< cur_fdm_state->get_Altitude() );
FG_LOG( FG_GENERAL, FG_DEBUG, "Current runway altitude = " <<
cur_fdm_state->get_Runway_altitude() );
if ( cur_fdm_state->get_Altitude() < cur_fdm_state->get_Runway_altitude() +
3.758099) {
cur_fdm_state->set_Altitude( cur_fdm_state->get_Runway_altitude() +
3.758099 );
}
FG_LOG( FG_GENERAL, FG_INFO,
"Updated position (after elevation adj): ("
<< (cur_fdm_state->get_Latitude() * RAD_TO_DEG) << ", "
<< (cur_fdm_state->get_Longitude() * RAD_TO_DEG) << ", "
<< (cur_fdm_state->get_Altitude() * FEET_TO_METER) << ")" );
// We need to calculate a few sea_level_radius here so we can pass
// the correct value to the view class
double sea_level_radius_meters;
double lat_geoc;
sgGeodToGeoc( cur_fdm_state->get_Latitude(),
cur_fdm_state->get_Altitude(),
&sea_level_radius_meters, &lat_geoc);
cur_fdm_state->set_Sea_level_radius( sea_level_radius_meters *
METER_TO_FEET );
// The following section sets up the flight model EOM parameters
// and should really be read in from one or more files.
// Initial Velocity
fgVelocityInit();
// Initial Orientation
cur_fdm_state->
set_Euler_Angles( globals->get_options()->get_roll() * DEG_TO_RAD,
globals->get_options()->get_pitch() * DEG_TO_RAD,
globals->get_options()->get_heading() * DEG_TO_RAD );
// Initialize the event manager
global_events.Init();
// Output event stats every 60 seconds
global_events.Register( "fgEVENT_MGR::PrintStats()",
fgMethodCallback<fgEVENT_MGR>( &global_events,
&fgEVENT_MGR::PrintStats),
fgEVENT::FG_EVENT_READY, 60000 );
// Initialize win ratio parameters
globals->get_options()->set_win_ratio( globals->get_options()->get_xsize() /
globals->get_options()->get_ysize()
);
// Initialize pilot view
FGViewerRPH *pilot_view =
(FGViewerRPH *)globals->get_viewmgr()->get_view( 0 );
pilot_view->set_geod_view_pos( cur_fdm_state->get_Longitude(),
cur_fdm_state->get_Lat_geocentric(),
cur_fdm_state->get_Altitude() *
FEET_TO_METER );
pilot_view->set_sea_level_radius( cur_fdm_state->get_Sea_level_radius() *
FEET_TO_METER );
pilot_view->set_rph( cur_fdm_state->get_Phi(),
cur_fdm_state->get_Theta(),
cur_fdm_state->get_Psi() );
FG_LOG( FG_GENERAL, FG_DEBUG, " abs_view_pos = "
<< globals->get_current_view()->get_abs_view_pos());
// fgUpdateSunPos() needs a few position and view parameters set
// so it can calculate local relative sun angle and a few other
// things for correctly orienting the sky.
fgUpdateSunPos();
fgUpdateMoonPos();
global_events.Register( "fgUpdateSunPos()", fgUpdateSunPos,
fgEVENT::FG_EVENT_READY, 60000);
global_events.Register( "fgUpdateMoonPos()", fgUpdateMoonPos,
fgEVENT::FG_EVENT_READY, 60000);
// Initialize Lighting interpolation tables
l->Init();
// update the lighting parameters (based on sun angle)
global_events.Register( "fgLight::Update()",
fgMethodCallback<fgLIGHT>( &cur_light_params,
&fgLIGHT::Update),
fgEVENT::FG_EVENT_READY, 30000 );
// update the current timezone each 30 minutes
global_events.Register( "fgUpdateLocalTime()", fgUpdateLocalTime,
fgEVENT::FG_EVENT_READY, 1800000);
// Initialize the weather modeling subsystem
#ifndef FG_OLD_WEATHER
// Initialize the WeatherDatabase
FG_LOG(FG_GENERAL, FG_INFO, "Creating LocalWeatherDatabase");
sgVec3 position;
sgSetVec3( position, current_aircraft.fdm_state->get_Latitude(),
current_aircraft.fdm_state->get_Longitude(),
current_aircraft.fdm_state->get_Altitude() * FEET_TO_METER );
FGLocalWeatherDatabase::theFGLocalWeatherDatabase =
new FGLocalWeatherDatabase( position, globals->get_options()->get_fg_root() );
// cout << theFGLocalWeatherDatabase << endl;
// cout << "visibility = "
// << theFGLocalWeatherDatabase->getWeatherVisibility() << endl;
WeatherDatabase = FGLocalWeatherDatabase::theFGLocalWeatherDatabase;
// register the periodic update of the weather
global_events.Register( "weather update", fgUpdateWeatherDatabase,
fgEVENT::FG_EVENT_READY, 30000);
#else
current_weather.Init();
#endif
// Initialize vor/ndb/ils/fix list management and query systems
FG_LOG(FG_GENERAL, FG_INFO, "Loading Navaids");
FG_LOG(FG_GENERAL, FG_INFO, " VOR/NDB");
current_navlist = new FGNavList;
FGPath p_nav( globals->get_options()->get_fg_root() );
p_nav.append( "Navaids/default.nav" );
current_navlist->init( p_nav );
FG_LOG(FG_GENERAL, FG_INFO, " ILS");
current_ilslist = new FGILSList;
FGPath p_ils( globals->get_options()->get_fg_root() );
p_ils.append( "Navaids/default.ils" );
current_ilslist->init( p_ils );
FG_LOG(FG_GENERAL, FG_INFO, " Fixes");
current_fixlist = new FGFixList;
FGPath p_fix( globals->get_options()->get_fg_root() );
p_fix.append( "Navaids/default.fix" );
current_fixlist->init( p_fix );
// Initialize the underlying radio stack model
current_radiostack = new FGRadioStack;
current_radiostack->search( cur_fdm_state->get_Longitude(),
cur_fdm_state->get_Latitude(),
cur_fdm_state->get_Altitude() * FEET_TO_METER );
current_radiostack->update( cur_fdm_state->get_Longitude(),
cur_fdm_state->get_Latitude(),
cur_fdm_state->get_Altitude() * FEET_TO_METER );
// Search radio database once per second
global_events.Register( "fgRadioSearch()", fgRadioSearch,
fgEVENT::FG_EVENT_READY, 1000);
// Initialize the Cockpit subsystem
if( fgCockpitInit( &current_aircraft )) {
// Cockpit initialized ok.
} else {
FG_LOG( FG_GENERAL, FG_ALERT, "Error in Cockpit initialization!" );
exit(-1);
}
// Initialize the flight model subsystem data structures base on
// above values
if ( cur_fdm_state->init( 1.0 / globals->get_options()->get_model_hz() ) ) {
// fdm init successful
} else {
FG_LOG( FG_GENERAL, FG_ALERT, "FDM init() failed! Cannot continue." );
exit(-1);
}
// *ABCD* I'm just sticking this here for now, it should probably
// move eventually
scenery.cur_elev = cur_fdm_state->get_Runway_altitude() * FEET_TO_METER;
if ( cur_fdm_state->get_Altitude() <
cur_fdm_state->get_Runway_altitude() + 3.758099)
{
cur_fdm_state->set_Altitude( cur_fdm_state->get_Runway_altitude() +
3.758099 );
}
FG_LOG( FG_GENERAL, FG_INFO,
"Updated position (after elevation adj): ("
<< (cur_fdm_state->get_Latitude() * RAD_TO_DEG) << ", "
<< (cur_fdm_state->get_Longitude() * RAD_TO_DEG) << ", "
<< (cur_fdm_state->get_Altitude() * FEET_TO_METER) << ")" );
// *ABCD* end of thing that I just stuck in that I should probably
// move
// Joystick support
if ( ! fgJoystickInit() ) {
FG_LOG( FG_GENERAL, FG_ALERT, "Error in Joystick initialization!" );
}
// Autopilot init
current_autopilot = new FGAutopilot;
current_autopilot->init();
// initialize the gui parts of the autopilot
NewTgtAirportInit();
fgAPAdjustInit() ;
NewHeadingInit();
NewAltitudeInit();
// Initialize I/O channels
#if ! defined( macintosh )
fgIOInit();
#endif
// Initialize the 2D panel.
string panel_path =
current_properties.getStringValue("/sim/panel/path",
"Panels/Default/default.xml");
current_panel = fgReadPanel(panel_path);
if (current_panel == 0) {
FG_LOG( FG_INPUT, FG_ALERT,
"Error reading new panel from " << panel_path );
} else {
FG_LOG( FG_INPUT, FG_INFO, "Loaded new panel from " << panel_path );
}
// Initialize the BFI
FGBFI::init();
FG_LOG( FG_GENERAL, FG_INFO, endl);
return true;
}
void fgReInitSubsystems( void )
{
bool freeze = globals->get_freeze();
if( !freeze )
globals->set_freeze( true );
if( global_tile_mgr.init() ) {
// Load the local scenery data
global_tile_mgr.update( globals->get_options()->get_lon(),
globals->get_options()->get_lat() );
} else {
FG_LOG( FG_GENERAL, FG_ALERT, "Error in Tile Manager initialization!" );
exit(-1);
}
// cout << "current scenery elev = " << scenery.cur_elev << endl;
fgInitPosition();
fgFDMSetGroundElevation( globals->get_options()->get_flight_model(),
scenery.cur_elev );
// Reset our altitude if we are below ground
FG_LOG( FG_GENERAL, FG_DEBUG, "Current altitude = "
<< cur_fdm_state->get_Altitude() );
FG_LOG( FG_GENERAL, FG_DEBUG, "Current runway altitude = "
<< cur_fdm_state->get_Runway_altitude() );
if ( cur_fdm_state->get_Altitude() <
cur_fdm_state->get_Runway_altitude() + 3.758099)
{
cur_fdm_state->set_Altitude( cur_fdm_state->get_Runway_altitude() +
3.758099 );
}
double sea_level_radius_meters;
double lat_geoc;
sgGeodToGeoc( cur_fdm_state->get_Latitude(), cur_fdm_state->get_Altitude(),
&sea_level_radius_meters, &lat_geoc);
cur_fdm_state->set_Sea_level_radius( sea_level_radius_meters *
METER_TO_FEET );
// The following section sets up the flight model EOM parameters
// and should really be read in from one or more files.
// Initial Velocity
fgVelocityInit();
// Initial Orientation
cur_fdm_state->
set_Euler_Angles( globals->get_options()->get_roll() * DEG_TO_RAD,
globals->get_options()->get_pitch() * DEG_TO_RAD,
globals->get_options()->get_heading() * DEG_TO_RAD );
// Initialize view parameters
FGViewerRPH *pilot_view =
(FGViewerRPH *)globals->get_viewmgr()->get_view( 0 );
pilot_view->set_view_offset( 0.0 );
pilot_view->set_goal_view_offset( 0.0 );
pilot_view->set_geod_view_pos( cur_fdm_state->get_Longitude(),
cur_fdm_state->get_Lat_geocentric(),
cur_fdm_state->get_Altitude() *
FEET_TO_METER );
pilot_view->set_sea_level_radius( cur_fdm_state->get_Sea_level_radius() *
FEET_TO_METER );
pilot_view->set_rph( cur_fdm_state->get_Phi(),
cur_fdm_state->get_Theta(),
cur_fdm_state->get_Psi() );
FG_LOG( FG_GENERAL, FG_DEBUG, " abs_view_pos = "
<< globals->get_current_view()->get_abs_view_pos());
cur_fdm_state->init( 1.0 / globals->get_options()->get_model_hz() );
scenery.cur_elev = cur_fdm_state->get_Runway_altitude() * FEET_TO_METER;
if ( cur_fdm_state->get_Altitude() <
cur_fdm_state->get_Runway_altitude() + 3.758099)
{
cur_fdm_state->set_Altitude( cur_fdm_state->get_Runway_altitude() +
3.758099 );
}
controls.reset_all();
current_autopilot->reset();
if( !freeze )
globals->set_freeze( false );
}
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