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Re-structure the nav-radio code, in preparation for cleaner GPS-slave separation. No functionality changes (hopefully).

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This commit is contained in:
jmt 2009-09-02 17:01:30 +00:00 • committed by Tim Moore
parent 5a01c55335
commit 80a6317ab6
2 changed files with 497 additions and 629 deletions
src/Instrumentation
navradio.cxxnavradio.hxx

473
src/Instrumentation/navradio.cxx
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@ -34,7 +34,9 @@
#include <simgear/misc/sg_path.hxx> #include <simgear/misc/sg_path.hxx>
#include <simgear/math/sg_geodesy.hxx> #include <simgear/math/sg_geodesy.hxx>
#include <simgear/structure/exception.hxx> #include <simgear/structure/exception.hxx>
#include <simgear/math/interpolater.hxx>
#include "Navaids/navrecord.hxx"
#include <Navaids/navlist.hxx> #include <Navaids/navlist.hxx>
#include <Main/util.hxx> #include <Main/util.hxx>
#include "navradio.hxx" #include "navradio.hxx"
@ -90,11 +92,8 @@ FGNavRadio::FGNavRadio(SGPropertyNode *node) :
gps_to_flag_node(NULL), gps_to_flag_node(NULL),
gps_from_flag_node(NULL), gps_from_flag_node(NULL),
gps_has_gs_node(NULL), gps_has_gs_node(NULL),
last_nav_id(""),
last_nav_vor(false),
play_count(0), play_count(0),
last_time(0), last_time(0),
radial(0.0),
target_radial(0.0), target_radial(0.0),
horiz_vel(0.0), horiz_vel(0.0),
last_x(0.0), last_x(0.0),
@ -308,31 +307,7 @@ FGNavRadio::update(double dt)
search(); search();
} }
// cache a few strategic values locally for speed
SGGeod pos = SGGeod::fromDegFt(lon_node->getDoubleValue(),
lat_node->getDoubleValue(),
alt_node->getDoubleValue());
bool power_btn = power_btn_node->getBoolValue();
bool nav_serviceable = nav_serviceable_node->getBoolValue();
bool cdi_serviceable = cdi_serviceable_node->getBoolValue();
bool tofrom_serviceable = tofrom_serviceable_node->getBoolValue();
bool inrange = false; bool inrange = false;
bool has_gs = false;
if ( nav_slaved_to_gps_node->getBoolValue() ) {
has_gs = gps_has_gs_node->getBoolValue();
has_gs_node->setBoolValue( has_gs );
inrange = gps_to_flag_node->getBoolValue()
|| gps_from_flag_node->getBoolValue();
} else {
has_gs = has_gs_node->getBoolValue();
inrange = inrange_node->getBoolValue();
}
bool is_loc = loc_node->getBoolValue();
double loc_dist = loc_dist_node->getDoubleValue();
double effective_range_m;
double signal_quality_norm = signal_quality_norm_node->getDoubleValue();
double az1, az2, s;
// Create "formatted" versions of the nav frequencies for // Create "formatted" versions of the nav frequencies for
// instrument displays. // instrument displays.
@ -342,45 +317,71 @@ FGNavRadio::update(double dt)
sprintf( tmp, "%.2f", alt_freq_node->getDoubleValue() ); sprintf( tmp, "%.2f", alt_freq_node->getDoubleValue() );
fmt_alt_freq_node->setStringValue(tmp); fmt_alt_freq_node->setStringValue(tmp);
// cout << "is_valid = " << is_valid if (_navaid
// << " power_btn = " << power_btn && power_btn_node->getBoolValue()
// << " bus_power = " << bus_power_node->getDoubleValue() && (bus_power_node->getDoubleValue() > 1.0)
// << " nav_serviceable = " << nav_serviceable && nav_serviceable_node->getBoolValue() )
// << endl;
if ( is_valid && power_btn && (bus_power_node->getDoubleValue() > 1.0)
&& nav_serviceable )
{ {
SGVec3d aircraft = SGVec3d::fromGeod(pos); inrange = updateWithPower(dt);
loc_dist = dist(aircraft, nav_xyz); } else {
loc_dist_node->setDoubleValue( loc_dist ); inrange_node->setBoolValue( false );
// cout << "dt = " << dt << " dist = " << loc_dist << endl; cdi_deflection_node->setDoubleValue( 0.0 );
cdi_xtrack_error_node->setDoubleValue( 0.0 );
cdi_xtrack_hdg_err_node->setDoubleValue( 0.0 );
time_to_intercept->setDoubleValue( 0.0 );
gs_deflection_node->setDoubleValue( 0.0 );
to_flag_node->setBoolValue( false );
from_flag_node->setBoolValue( false );
}
if ( has_gs ) { updateAudio(inrange);
}
bool FGNavRadio::updateWithPower(double dt)
{
bool nav_serviceable = nav_serviceable_node->getBoolValue();
bool cdi_serviceable = cdi_serviceable_node->getBoolValue();
bool tofrom_serviceable = tofrom_serviceable_node->getBoolValue();
double az1, az2, s;
SGGeod pos = SGGeod::fromDegFt(lon_node->getDoubleValue(),
lat_node->getDoubleValue(),
alt_node->getDoubleValue());
bool inrange = false;
if ( nav_slaved_to_gps_node->getBoolValue() ) {
// FIXME - GPS-slaved GS support in unfinished
has_gs_node->setBoolValue(gps_has_gs_node->getBoolValue());
inrange = gps_to_flag_node->getBoolValue() || gps_from_flag_node->getBoolValue();
} else {
inrange = inrange_node->getBoolValue();
}
double nav_elev = _navaid->get_elev_ft();
SGVec3d aircraft = SGVec3d::fromGeod(pos);
double loc_dist = dist(aircraft, _navaid->cart());
loc_dist_node->setDoubleValue( loc_dist );
bool is_loc = loc_node->getBoolValue();
double signal_quality_norm = signal_quality_norm_node->getDoubleValue();
if (_gs) {
// find closest distance to the gs base line // find closest distance to the gs base line
SGVec3d p = aircraft; double dist = sgdClosestPointToLineDistSquared(aircraft.sg(), _gs->cart().sg(),
double dist = sgdClosestPointToLineDistSquared(p.sg(), gs_xyz.sg(),
gs_base_vec.sg()); gs_base_vec.sg());
gs_dist_node->setDoubleValue( sqrt( dist ) ); gs_dist_node->setDoubleValue( sqrt( dist ) );
// cout << "gs_dist = " << gs_dist_node->getDoubleValue() // cout << "gs_dist = " << gs_dist_node->getDoubleValue()
// << endl; // << endl;
// wgs84 heading to glide slope (to determine sign of distance) // wgs84 heading to glide slope (to determine sign of distance)
geo_inverse_wgs_84( pos, SGGeod::fromDeg(gs_lon, gs_lat), SGGeodesy::inverse(pos, _gs->geod(), az1, az2, s);
&az1, &az2, &s );
double r = az1 - target_radial; double r = az1 - target_radial;
while ( r > 180.0 ) { r -= 360.0;} SG_NORMALIZE_RANGE(r, -180.0, 180.0);
while ( r < -180.0 ) { r += 360.0;} if (fabs(r) <= 90.0) {
if ( r >= -90.0 && r <= 90.0 ) {
gs_dist_signed = gs_dist_node->getDoubleValue(); gs_dist_signed = gs_dist_node->getDoubleValue();
} else { } else {
gs_dist_signed = -gs_dist_node->getDoubleValue(); gs_dist_signed = -gs_dist_node->getDoubleValue();
} }
/* cout << "Target Radial = " << target_radial
<< " Bearing = " << az1
<< " dist (signed) = " << gs_dist_signed
<< endl; */
} else { } else {
gs_dist_node->setDoubleValue( 0.0 ); gs_dist_node->setDoubleValue( 0.0 );
} }
@ -389,33 +390,24 @@ FGNavRadio::update(double dt)
// compute forward and reverse wgs84 headings to localizer // compute forward and reverse wgs84 headings to localizer
////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////
double hdg; double hdg;
geo_inverse_wgs_84( pos, SGGeod::fromDeg(loc_lon, loc_lat), SGGeodesy::inverse(pos, _navaid->geod(), hdg, az2, s);
&hdg, &az2, &s );
// cout << "az1 = " << az1 << " magvar = " << nav_magvar << endl;
heading_node->setDoubleValue( hdg ); heading_node->setDoubleValue( hdg );
radial = az2 - twist; double radial = az2 - twist;
double recip = radial + 180.0; double recip = radial + 180.0;
if ( recip >= 360.0 ) { recip -= 360.0; } SG_NORMALIZE_RANGE(recip, 0.0, 360.0);
radial_node->setDoubleValue( radial ); radial_node->setDoubleValue( radial );
recip_radial_node->setDoubleValue( recip ); recip_radial_node->setDoubleValue( recip );
// cout << " heading = " << heading_node->getDoubleValue()
// << " dist = " << nav_dist << endl;
////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////
// compute the target/selected radial in "true" heading // compute the target/selected radial in "true" heading
////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////
double trtrue = 0.0; if (!is_loc) {
if ( is_loc ) { target_radial = sel_radial_node->getDoubleValue();
// ILS localizers radials are already "true" in our
// database
trtrue = target_radial;
} else {
// VOR radials need to have that vor's offset added in
trtrue = target_radial + twist;
} }
while ( trtrue < 0.0 ) { trtrue += 360.0; } // VORs need twist (mag-var) added; ILS/LOCs don't but we set twist to 0.0
while ( trtrue > 360.0 ) { trtrue -= 360.0; } double trtrue = target_radial + twist;
SG_NORMALIZE_RANGE(trtrue, 0.0, 360.0);
target_radial_true_node->setDoubleValue( trtrue ); target_radial_true_node->setDoubleValue( trtrue );
////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////
@ -425,28 +417,22 @@ FGNavRadio::update(double dt)
////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////
if ( is_loc ) { if ( is_loc ) {
double offset = radial - target_radial; double offset = radial - target_radial;
while ( offset < -180.0 ) { offset += 360.0; } SG_NORMALIZE_RANGE(offset, -180.0, 180.0);
while ( offset > 180.0 ) { offset -= 360.0; }
// cout << "ils offset = " << offset << endl;
effective_range effective_range
= adjustILSRange( nav_elev, pos.getElevationM(), offset, = adjustILSRange( nav_elev, pos.getElevationM(), offset,
loc_dist * SG_METER_TO_NM ); loc_dist * SG_METER_TO_NM );
} else { } else {
effective_range effective_range
= adjustNavRange( nav_elev, pos.getElevationM(), range ); = adjustNavRange( nav_elev, pos.getElevationM(), _navaid->get_range() );
} }
effective_range_m = effective_range * SG_NM_TO_METER; double effective_range_m = effective_range * SG_NM_TO_METER;
// cout << "nav range = " << effective_range
// << " (" << range << ")" << endl;
////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////
// compute signal quality // compute signal quality
// 100% within effective_range // 100% within effective_range
// decreases 1/x^2 further out // decreases 1/x^2 further out
////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////
{
double last_signal_quality_norm = signal_quality_norm; double last_signal_quality_norm = signal_quality_norm;
if ( loc_dist < effective_range_m ) { if ( loc_dist < effective_range_m ) {
@ -458,7 +444,7 @@ FGNavRadio::update(double dt)
signal_quality_norm = fgGetLowPass( last_signal_quality_norm, signal_quality_norm = fgGetLowPass( last_signal_quality_norm,
signal_quality_norm, dt ); signal_quality_norm, dt );
}
signal_quality_norm_node->setDoubleValue( signal_quality_norm ); signal_quality_norm_node->setDoubleValue( signal_quality_norm );
if ( ! nav_slaved_to_gps_node->getBoolValue() ) { if ( ! nav_slaved_to_gps_node->getBoolValue() ) {
/* not slaved to gps */ /* not slaved to gps */
@ -466,45 +452,32 @@ FGNavRadio::update(double dt)
} }
inrange_node->setBoolValue( inrange ); inrange_node->setBoolValue( inrange );
if ( !is_loc ) {
target_radial = sel_radial_node->getDoubleValue();
}
////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////
// compute to/from flag status // compute to/from flag status
////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////
bool value = false; if (tofrom_serviceable) {
if (nav_slaved_to_gps_node->getBoolValue()) {
to_flag_node->setBoolValue(gps_to_flag_node->getBoolValue());
from_flag_node->setBoolValue(gps_from_flag_node->getBoolValue());
} else if (inrange) {
bool toFlag = false;
if (is_loc) {
toFlag = true;
} else {
double offset = fabs(radial - target_radial); double offset = fabs(radial - target_radial);
if ( tofrom_serviceable ) { toFlag = (offset > 90.0 && offset < 270.0);
if ( nav_slaved_to_gps_node->getBoolValue() ) {
value = gps_to_flag_node->getBoolValue();
} else if ( inrange ) {
if ( is_loc ) {
value = true;
} else {
value = !(offset <= 90.0 || offset >= 270.0);
} }
}
} else {
value = false;
}
to_flag_node->setBoolValue( value );
value = false; to_flag_node->setBoolValue(toFlag);
if ( tofrom_serviceable ) { from_flag_node->setBoolValue(!toFlag);
if ( nav_slaved_to_gps_node->getBoolValue() ) { } else { // out-of-range
value = gps_from_flag_node->getBoolValue(); to_flag_node->setBoolValue(false);
} else if ( inrange ) { from_flag_node->setBoolValue(false);
if ( is_loc ) {
value = false;
} else {
value = !(offset > 90.0 && offset < 270.0);
}
} }
} else { } else {
value = false; to_flag_node->setBoolValue(false);
from_flag_node->setBoolValue(false);
} }
from_flag_node->setBoolValue( value );
////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////
// compute the deflection of the CDI needle, clamped to the range // compute the deflection of the CDI needle, clamped to the range
@ -524,8 +497,7 @@ FGNavRadio::update(double dt)
// cout << "Target radial = " << target_radial // cout << "Target radial = " << target_radial
// << " Actual radial = " << radial << endl; // << " Actual radial = " << radial << endl;
while ( r > 180.0 ) { r -= 360.0;} SG_NORMALIZE_RANGE(r, -180.0, 180.0);
while ( r < -180.0 ) { r += 360.0;}
if ( fabs(r) > 90.0 ) { if ( fabs(r) > 90.0 ) {
r = ( r<0.0 ? -r-180.0 : -r+180.0 ); r = ( r<0.0 ? -r-180.0 : -r+180.0 );
} else { } else {
@ -552,12 +524,7 @@ FGNavRadio::update(double dt)
double xtrack_error = 0.0; double xtrack_error = 0.0;
if ( inrange && nav_serviceable && cdi_serviceable ) { if ( inrange && nav_serviceable && cdi_serviceable ) {
r = radial - target_radial; r = radial - target_radial;
// cout << "Target radial = " << target_radial SG_NORMALIZE_RANGE(r, -180.0, 180.0);
// << " Actual radial = " << radial
// << " r = " << r << endl;
while ( r > 180.0 ) { r -= 360.0;}
while ( r < -180.0 ) { r += 360.0;}
if ( fabs(r) > 90.0 ) { if ( fabs(r) > 90.0 ) {
r = ( r<0.0 ? -r-180.0 : -r+180.0 ); r = ( r<0.0 ? -r-180.0 : -r+180.0 );
} }
@ -618,9 +585,9 @@ FGNavRadio::update(double dt)
// when this values is +/-3.5. // when this values is +/-3.5.
////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////
r = 0.0; r = 0.0;
if ( has_gs && gs_serviceable_node->getBoolValue() ) { if (_gs && gs_serviceable_node->getBoolValue() ) {
if ( nav_slaved_to_gps_node->getBoolValue() ) { if ( nav_slaved_to_gps_node->getBoolValue() ) {
// FIXME/FINISHME, what should be set here? // FIXME what should be set here?
} else if ( inrange ) { } else if ( inrange ) {
double x = gs_dist_node->getDoubleValue(); double x = gs_dist_node->getDoubleValue();
double y = (alt_node->getDoubleValue() - nav_elev) double y = (alt_node->getDoubleValue() - nav_elev)
@ -698,57 +665,49 @@ FGNavRadio::update(double dt)
target_auto_hdg_node->setDoubleValue( nta_hdg ); target_auto_hdg_node->setDoubleValue( nta_hdg );
last_xtrack_error = xtrack_error; last_xtrack_error = xtrack_error;
} else { last_loc_dist = loc_dist;
inrange_node->setBoolValue( false ); return inrange;
cdi_deflection_node->setDoubleValue( 0.0 ); }
cdi_xtrack_error_node->setDoubleValue( 0.0 );
cdi_xtrack_hdg_err_node->setDoubleValue( 0.0 ); void FGNavRadio::updateAudio(bool aInRange)
time_to_intercept->setDoubleValue( 0.0 ); {
gs_deflection_node->setDoubleValue( 0.0 ); if (!_navaid || !aInRange || !nav_serviceable_node->getBoolValue()) {
to_flag_node->setBoolValue( false ); return;
from_flag_node->setBoolValue( false );
// cout << "not picking up vor. :-(" << endl;
} }
// audio effects
if ( is_valid && inrange && nav_serviceable ) {
// play station ident via audio system if on + ident, // play station ident via audio system if on + ident,
// otherwise turn it off // otherwise turn it off
if ( power_btn if (!power_btn_node->getBoolValue()
&& (bus_power_node->getDoubleValue() > 1.0) || !(bus_power_node->getDoubleValue() > 1.0)
&& ident_btn_node->getBoolValue() || !ident_btn_node->getBoolValue()
&& audio_btn_node->getBoolValue() ) || !audio_btn_node->getBoolValue() ) {
{ globals->get_soundmgr()->stop( nav_fx_name );
SGSoundSample *sound; globals->get_soundmgr()->stop( dme_fx_name );
sound = globals->get_soundmgr()->find( nav_fx_name ); return;
}
SGSoundSample *sound = globals->get_soundmgr()->find( nav_fx_name );
double vol = vol_btn_node->getDoubleValue(); double vol = vol_btn_node->getDoubleValue();
if ( vol < 0.0 ) { vol = 0.0; } SG_CLAMP_RANGE(vol, 0.0, 1.0);
if ( vol > 1.0 ) { vol = 1.0; }
if ( sound != NULL ) { if ( sound != NULL ) {
sound->set_volume( vol ); sound->set_volume( vol );
} else { } else {
SG_LOG( SG_COCKPIT, SG_ALERT, SG_LOG( SG_COCKPIT, SG_ALERT, "Can't find nav-vor-ident sound" );
"Can't find nav-vor-ident sound" );
} }
sound = globals->get_soundmgr()->find( dme_fx_name ); sound = globals->get_soundmgr()->find( dme_fx_name );
if ( sound != NULL ) { if ( sound != NULL ) {
sound->set_volume( vol ); sound->set_volume( vol );
} else { } else {
SG_LOG( SG_COCKPIT, SG_ALERT, SG_LOG( SG_COCKPIT, SG_ALERT, "Can't find nav-dme-ident sound" );
"Can't find nav-dme-ident sound" );
} }
// cout << "last_time = " << last_time << " ";
// cout << "cur_time = " if ( last_time < globals->get_time_params()->get_cur_time() - 30 ) {
// << globals->get_time_params()->get_cur_time();
if ( last_time <
globals->get_time_params()->get_cur_time() - 30 ) {
last_time = globals->get_time_params()->get_cur_time(); last_time = globals->get_time_params()->get_cur_time();
play_count = 0; play_count = 0;
} }
// cout << " play_count = " << play_count << endl;
// cout << "playing = "
// << globals->get_soundmgr()->is_playing(nav_fx_name)
// << endl;
if ( play_count < 4 ) { if ( play_count < 4 ) {
// play VOR ident // play VOR ident
if ( !globals->get_soundmgr()->is_playing(nav_fx_name) ) { if ( !globals->get_soundmgr()->is_playing(nav_fx_name) ) {
@ -763,163 +722,101 @@ FGNavRadio::update(double dt)
++play_count; ++play_count;
} }
} }
} else {
globals->get_soundmgr()->stop( nav_fx_name );
globals->get_soundmgr()->stop( dme_fx_name );
}
} }
last_loc_dist = loc_dist; FGNavRecord* FGNavRadio::findPrimaryNavaid(const SGGeod& aPos, double aFreqMHz)
{
FGNavRecord* nav = globals->get_navlist()->findByFreq(aFreqMHz, aPos);
if (nav) {
return nav;
} }
return globals->get_loclist()->findByFreq(aFreqMHz, aPos);
}
// Update current nav/adf radio stations based on current postition // Update current nav/adf radio stations based on current postition
void FGNavRadio::search() void FGNavRadio::search()
{ {
// reset search time
_time_before_search_sec = 1.0; _time_before_search_sec = 1.0;
// cache values locally for speed
SGGeod pos = SGGeod::fromDegFt(lon_node->getDoubleValue(), SGGeod pos = SGGeod::fromDegFt(lon_node->getDoubleValue(),
lat_node->getDoubleValue(), alt_node->getDoubleValue()); lat_node->getDoubleValue(), alt_node->getDoubleValue());
FGNavRecord *nav = NULL;
FGNavRecord *loc = NULL;
FGNavRecord *dme = NULL;
FGNavRecord *gs = NULL;
////////////////////////////////////////////////////////////////////////
// Nav.
////////////////////////////////////////////////////////////////////////
double freq = freq_node->getDoubleValue(); double freq = freq_node->getDoubleValue();
nav = globals->get_navlist()->findByFreq(freq, pos);
dme = globals->get_dmelist()->findByFreq(freq, pos); FGNavRecord* nav = findPrimaryNavaid(pos, freq);
if ( nav == NULL ) { if (nav == _navaid) {
loc = globals->get_loclist()->findByFreq(freq, pos); return; // found the same as last search, we're done
gs = globals->get_gslist()->findByFreq(freq, pos);
} }
string nav_id = ""; _navaid = nav;
char identBuffer[5] = " ";
if ( loc != NULL ) { if (nav) {
nav_id = loc->get_ident(); FGNavRecord* dme = globals->get_dmelist()->findByFreq(freq, pos);
nav_id_node->setStringValue( nav_id.c_str() );
// cout << "localizer = " << nav_id_node->getStringValue() << endl;
is_valid = true;
if ( last_nav_id != nav_id || last_nav_vor ) {
trans_ident = loc->get_trans_ident();
target_radial = loc->get_multiuse();
while ( target_radial < 0.0 ) { target_radial += 360.0; }
while ( target_radial > 360.0 ) { target_radial -= 360.0; }
loc_lon = loc->get_lon();
loc_lat = loc->get_lat();
nav_xyz = loc->cart();
last_nav_id = nav_id;
last_nav_vor = false;
loc_node->setBoolValue( true );
has_dme = (dme != NULL); has_dme = (dme != NULL);
if ( gs != NULL ) {
has_gs_node->setBoolValue( true ); nav_id_node->setStringValue(nav->get_ident());
gs_lon = gs->get_lon(); strncpy(identBuffer, nav->ident().c_str(), 5);
gs_lat = gs->get_lat();
nav_elev = gs->get_elev_ft(); effective_range = adjustNavRange(nav->get_elev_ft(), pos.getElevationM(), nav->get_range());
int tmp = (int)(gs->get_multiuse() / 1000.0); loc_node->setBoolValue(nav->type() != FGPositioned::VOR);
twist = nav->get_multiuse();
if (nav->type() == FGPositioned::VOR) {
target_radial = sel_radial_node->getDoubleValue();
_gs = NULL;
} else { // ILS or LOC
_gs = globals->get_gslist()->findByFreq(freq, pos);
has_gs_node->setBoolValue(_gs != NULL);
twist = 0.0;
effective_range = FG_LOC_DEFAULT_RANGE;
target_radial = nav->get_multiuse();
SG_NORMALIZE_RANGE(target_radial, 0.0, 360.0);
if (_gs) {
int tmp = (int)(_gs->get_multiuse() / 1000.0);
target_gs = (double)tmp / 100.0; target_gs = (double)tmp / 100.0;
gs_xyz = gs->cart();
// derive GS baseline (perpendicular to the runay SGGeod baseLine;
// along the ground) double dummy;
double tlon = 0.0, tlat = 0.0, taz = 0.0; SGGeodesy::direct(_gs->geod(), target_radial + 90.0, 100.0, baseLine, dummy);
geo_direct_wgs_84 ( 0.0, gs_lat, gs_lon, gs_base_vec = SGVec3d::fromGeod(baseLine) - _gs->cart();
target_radial + 90, } // of have glideslope
100.0, &tlat, &tlon, &taz ); } // of found LOC or ILS
// cout << "target_radial = " << target_radial << endl;
// cout << "nav_loc = " << loc_node->getBoolValue() << endl;
// cout << gs_lon << "," << gs_lat << " "
// << tlon << "," << tlat << " (" << nav_elev << ")"
// << endl;
SGGeod tpos = SGGeod::fromDegFt(tlon, tlat, nav_elev);
SGVec3d p1 = SGVec3d::fromGeod(tpos);
// cout << gs_xyz << endl; audioNavidChanged();
// cout << p1 << endl; } else { // found nothing
gs_base_vec = p1 - gs_xyz; _gs = NULL;
// cout << gs_base_vec << endl; nav_id_node->setStringValue("");
} else { has_dme = false;
has_gs_node->setBoolValue( false );
nav_elev = loc->get_elev_ft();
}
twist = 0;
range = FG_LOC_DEFAULT_RANGE;
effective_range = range;
if ( globals->get_soundmgr()->exists( nav_fx_name ) ) {
globals->get_soundmgr()->remove( nav_fx_name ); globals->get_soundmgr()->remove( nav_fx_name );
}
SGSoundSample *sound;
sound = morse.make_ident( trans_ident, LO_FREQUENCY );
sound->set_volume( 0.3 );
globals->get_soundmgr()->add( sound, nav_fx_name );
if ( globals->get_soundmgr()->exists( dme_fx_name ) ) {
globals->get_soundmgr()->remove( dme_fx_name ); globals->get_soundmgr()->remove( dme_fx_name );
} }
sound = morse.make_ident( trans_ident, HI_FREQUENCY );
sound->set_volume( 0.3 );
globals->get_soundmgr()->add( sound, dme_fx_name );
int offset = (int)(sg_random() * 30.0); is_valid_node->setBoolValue(nav != NULL);
play_count = offset / 4; id_c1_node->setIntValue( (int)identBuffer[0] );
last_time = globals->get_time_params()->get_cur_time() - id_c2_node->setIntValue( (int)identBuffer[1] );
offset; id_c3_node->setIntValue( (int)identBuffer[2] );
// cout << "offset = " << offset << " play_count = " id_c4_node->setIntValue( (int)identBuffer[3] );
// << play_count
// << " last_time = " << last_time
// << " current time = "
// << globals->get_time_params()->get_cur_time() << endl;
// cout << "Found an loc station in range" << endl;
// cout << " id = " << loc->get_locident() << endl;
} }
} else if ( nav != NULL ) {
nav_id = nav->get_ident();
nav_id_node->setStringValue( nav_id.c_str() );
// cout << "nav = " << nav_id << endl;
is_valid = true;
if ( last_nav_id != nav_id || !last_nav_vor ) {
last_nav_id = nav_id;
last_nav_vor = true;
trans_ident = nav->get_trans_ident();
loc_node->setBoolValue( false );
has_dme = (dme != NULL);
has_gs_node->setBoolValue( false );
loc_lon = nav->get_lon();
loc_lat = nav->get_lat();
nav_elev = nav->get_elev_ft();
twist = nav->get_multiuse();
range = nav->get_range();
effective_range = adjustNavRange(nav_elev, pos.getElevationM(), range);
target_gs = 0.0;
target_radial = sel_radial_node->getDoubleValue();
nav_xyz = nav->cart();
void FGNavRadio::audioNavidChanged()
{
if ( globals->get_soundmgr()->exists(nav_fx_name)) { if ( globals->get_soundmgr()->exists(nav_fx_name)) {
globals->get_soundmgr()->remove(nav_fx_name); globals->get_soundmgr()->remove(nav_fx_name);
} }
try { try {
SGSoundSample *sound; string trans_ident(_navaid->get_trans_ident());
sound = morse.make_ident( trans_ident, LO_FREQUENCY ); SGSoundSample* sound = morse.make_ident(trans_ident, LO_FREQUENCY);
sound->set_volume( 0.3 ); sound->set_volume( 0.3 );
if ( globals->get_soundmgr()->add( sound, nav_fx_name ) ) { if (!globals->get_soundmgr()->add( sound, nav_fx_name )) {
// cout << "Added nav-vor-ident sound" << endl;
} else {
SG_LOG(SG_COCKPIT, SG_WARN, "Failed to add v1-vor-ident sound"); SG_LOG(SG_COCKPIT, SG_WARN, "Failed to add v1-vor-ident sound");
} }
if ( globals->get_soundmgr()->exists( dme_fx_name ) ) { if ( globals->get_soundmgr()->exists( dme_fx_name ) ) {
globals->get_soundmgr()->remove( dme_fx_name ); globals->get_soundmgr()->remove( dme_fx_name );
} }
sound = morse.make_ident( trans_ident, HI_FREQUENCY ); sound = morse.make_ident( trans_ident, HI_FREQUENCY );
sound->set_volume( 0.3 ); sound->set_volume( 0.3 );
globals->get_soundmgr()->add( sound, dme_fx_name ); globals->get_soundmgr()->add( sound, dme_fx_name );
@ -927,33 +824,7 @@ void FGNavRadio::search()
int offset = (int)(sg_random() * 30.0); int offset = (int)(sg_random() * 30.0);
play_count = offset / 4; play_count = offset / 4;
last_time = globals->get_time_params()->get_cur_time() - offset; last_time = globals->get_time_params()->get_cur_time() - offset;
// cout << "offset = " << offset << " play_count = "
// << play_count << " last_time = "
// << last_time << " current time = "
// << globals->get_time_params()->get_cur_time() << endl;
// cout << "Found a vor station in range" << endl;
// cout << " id = " << nav->get_ident() << endl;
} catch (sg_io_exception& e) { } catch (sg_io_exception& e) {
SG_LOG(SG_GENERAL, SG_ALERT, e.getFormattedMessage()); SG_LOG(SG_GENERAL, SG_ALERT, e.getFormattedMessage());
} }
} }
} else {
is_valid = false;
nav_id_node->setStringValue( "" );
target_radial = 0;
trans_ident = "";
last_nav_id = "";
globals->get_soundmgr()->remove( nav_fx_name );
globals->get_soundmgr()->remove( dme_fx_name );
}
is_valid_node->setBoolValue( is_valid );
char tmpid[5];
strncpy( tmpid, nav_id.c_str(), 5 );
id_c1_node->setIntValue( (int)tmpid[0] );
id_c2_node->setIntValue( (int)tmpid[1] );
id_c3_node->setIntValue( (int)tmpid[2] );
id_c4_node->setIntValue( (int)tmpid[3] );
}

31
src/Instrumentation/navradio.hxx
View file

@ -26,14 +26,17 @@
#include <Main/fg_props.hxx> #include <Main/fg_props.hxx>
#include "Sound/morse.hxx"
#include <simgear/compiler.h> #include <simgear/compiler.h>
#include <simgear/structure/subsystem_mgr.hxx> #include <simgear/structure/subsystem_mgr.hxx>
#include <simgear/math/interpolater.hxx>
#include <simgear/timing/timestamp.hxx> #include <simgear/timing/timestamp.hxx>
#include <Navaids/navlist.hxx> // forward decls
#include <Sound/morse.hxx> class SGInterpTable;
class FGNavRecord;
typedef SGSharedPtr<FGNavRecord> FGNavRecordPtr;
class FGNavRadio : public SGSubsystem class FGNavRadio : public SGSubsystem
{ {
@ -110,32 +113,20 @@ class FGNavRadio : public SGSubsystem
// internal (private) values // internal (private) values
string last_nav_id;
bool last_nav_vor;
int play_count; int play_count;
time_t last_time; time_t last_time;
FGNavRecordPtr _navaid;
FGNavRecordPtr _gs;
int index; // used for property binding
string nav_fx_name; string nav_fx_name;
string dme_fx_name; string dme_fx_name;
string trans_ident;
bool is_valid;
bool has_dme; bool has_dme;
double radial;
double target_radial; double target_radial;
double loc_lon;
double loc_lat;
SGVec3d nav_xyz;
double gs_lon;
double gs_lat;
double nav_elev; // use gs elev if available
SGVec3d gs_xyz;
SGVec3d gs_base_vec; SGVec3d gs_base_vec;
double gs_dist_signed; double gs_dist_signed;
SGTimeStamp prev_time; SGTimeStamp prev_time;
SGTimeStamp curr_time; SGTimeStamp curr_time;
double range;
double effective_range; double effective_range;
double target_gs; double target_gs;
double twist; double twist;
@ -150,6 +141,8 @@ class FGNavRadio : public SGSubsystem
// internal periodic station search timer // internal periodic station search timer
double _time_before_search_sec; double _time_before_search_sec;
bool updateWithPower(double aDt);
// model standard VOR/DME/TACAN service volumes as per AIM 1-1-8 // model standard VOR/DME/TACAN service volumes as per AIM 1-1-8
double adjustNavRange( double stationElev, double aircraftElev, double adjustNavRange( double stationElev, double aircraftElev,
double nominalRange ); double nominalRange );
@ -158,6 +151,10 @@ class FGNavRadio : public SGSubsystem
double adjustILSRange( double stationElev, double aircraftElev, double adjustILSRange( double stationElev, double aircraftElev,
double offsetDegrees, double distance ); double offsetDegrees, double distance );
void updateAudio(bool aInRange);
void audioNavidChanged();
FGNavRecord* findPrimaryNavaid(const SGGeod& aPos, double aFreqMHz);
public: public:
FGNavRadio(SGPropertyNode *node); FGNavRadio(SGPropertyNode *node);