#include <simgear/compiler.h>
#include <simgear/math/sg_random.h>
+#include <simgear/math/vector.hxx>
#include <Aircraft/aircraft.hxx>
#include <Navaids/ilslist.hxx>
#include <Navaids/navlist.hxx>
-#include <Time/FGEventMgr.hxx>
#include "navcom.hxx"
comm_vol_btn(0.0),
nav_freq(0.0),
nav_alt_freq(0.0),
- nav_radial(0.0),
+ nav_target_radial(0.0),
nav_vol_btn(0.0),
nav_ident_btn(true)
{
// We assume that index is valid now (it must be set before init()
// is called.)
char propname[256];
+ // FIXME: Get rid of snprintf
- sprintf( propname, "/systems/electrical/outputs/navcom[%d]", index );
+ snprintf(propname, 256, "/systems/electrical/outputs/navcom[%d]", index);
// default to true in case no electrical system defined.
fgSetDouble( propname, 60.0 );
bus_power = fgGetNode( propname, true );
- sprintf( propname, "/instrumentation/comm[%d]/servicable", index );
- com_servicable = fgGetNode( propname, true );
- com_servicable->setBoolValue( true );
+ snprintf(propname, 256, "/instrumentation/comm[%d]/serviceable", index);
+ com_serviceable = fgGetNode( propname, true );
+ com_serviceable->setBoolValue( true );
- sprintf( propname, "/instrumentation/nav[%d]/servicable", index );
- nav_servicable = fgGetNode( propname, true );
- nav_servicable->setBoolValue( true );
+ snprintf(propname, 256, "/instrumentation/nav[%d]/serviceable", index);
+ nav_serviceable = fgGetNode( propname, true );
+ nav_serviceable->setBoolValue( true );
- sprintf( propname, "/instrumentation/vor[%d]/cdi/servicable", index );
- cdi_servicable = fgGetNode( propname, true );
- cdi_servicable->setBoolValue( true );
+ snprintf(propname, 256, "/instrumentation/vor[%d]/cdi/serviceable", index);
+ cdi_serviceable = fgGetNode( propname, true );
+ cdi_serviceable->setBoolValue( true );
- sprintf( propname, "/instrumentation/vor[%d]/gs/servicable", index );
- gs_servicable = fgGetNode( propname, true );
- gs_servicable->setBoolValue( true );
+ snprintf(propname, 256, "/instrumentation/vor[%d]/gs/serviceable", index);
+ gs_serviceable = fgGetNode( propname, true );
+ gs_serviceable->setBoolValue( true );
- sprintf( propname, "/instrumentation/vor[%d]/to-from/servicable", index );
- tofrom_servicable = fgGetNode( propname, true );
- tofrom_servicable->setBoolValue( true );
+ snprintf(propname, 256, "/instrumentation/vor[%d]/to-from/serviceable", index);
+ tofrom_serviceable = fgGetNode( propname, true );
+ tofrom_serviceable->setBoolValue( true );
}
void
FGNavCom::bind ()
{
char propname[256];
+ // FIXME: Get rid of snprintf
// User inputs
- sprintf( propname, "/radios/comm[%d]/inputs/power-btn", index );
+ snprintf(propname, 256, "/radios/comm[%d]/inputs/power-btn", index);
fgTie( propname, this,
&FGNavCom::get_power_btn, &FGNavCom::set_power_btn );
fgSetArchivable( propname );
- sprintf( propname, "/radios/comm[%d]/frequencies/selected-mhz", index );
+ snprintf(propname, 256, "/radios/comm[%d]/frequencies/selected-mhz", index);
fgTie( propname, this, &FGNavCom::get_comm_freq, &FGNavCom::set_comm_freq );
fgSetArchivable( propname );
- sprintf( propname, "/radios/comm[%d]/frequencies/standby-mhz", index );
+ snprintf(propname, 256, "/radios/comm[%d]/frequencies/standby-mhz", index);
fgTie( propname, this,
&FGNavCom::get_comm_alt_freq, &FGNavCom::set_comm_alt_freq );
fgSetArchivable( propname );
- sprintf( propname, "/radios/comm[%d]/volume", index );
+ snprintf(propname, 256, "/radios/comm[%d]/volume", index);
fgTie( propname, this,
&FGNavCom::get_comm_vol_btn, &FGNavCom::set_comm_vol_btn );
fgSetArchivable( propname );
- sprintf( propname, "/radios/nav[%d]/frequencies/selected-mhz", index );
+ snprintf(propname, 256, "/radios/nav[%d]/frequencies/selected-mhz", index);
fgTie( propname, this,
&FGNavCom::get_nav_freq, &FGNavCom::set_nav_freq );
fgSetArchivable( propname );
- sprintf( propname, "/radios/nav[%d]/frequencies/standby-mhz", index );
+ snprintf(propname, 256, "/radios/nav[%d]/frequencies/standby-mhz", index);
fgTie( propname , this,
&FGNavCom::get_nav_alt_freq, &FGNavCom::set_nav_alt_freq);
fgSetArchivable( propname );
- sprintf( propname, "/radios/nav[%d]/radials/selected-deg", index );
+ snprintf(propname, 256, "/radios/nav[%d]/radials/selected-deg", index);
fgTie( propname, this,
&FGNavCom::get_nav_sel_radial, &FGNavCom::set_nav_sel_radial );
fgSetArchivable( propname );
- sprintf( propname, "/radios/nav[%d]/volume", index );
+ snprintf(propname, 256, "/radios/nav[%d]/volume", index);
fgTie( propname, this,
&FGNavCom::get_nav_vol_btn, &FGNavCom::set_nav_vol_btn );
fgSetArchivable( propname );
- sprintf( propname, "/radios/nav[%d]/ident", index );
+ snprintf(propname, 256, "/radios/nav[%d]/ident", index);
fgTie( propname, this,
&FGNavCom::get_nav_ident_btn, &FGNavCom::set_nav_ident_btn );
fgSetArchivable( propname );
// Radio outputs
- sprintf( propname, "/radios/nav[%d]/audio-btn", index );
+ snprintf(propname, 256, "/radios/nav[%d]/audio-btn", index);
fgTie( propname, this,
&FGNavCom::get_audio_btn, &FGNavCom::set_audio_btn );
fgSetArchivable( propname );
- sprintf( propname, "/radios/nav[%d]/radials/actual-deg", index );
+ snprintf(propname, 256, "/radios/nav[%d]/radials/actual-deg", index);
fgTie( propname, this, &FGNavCom::get_nav_radial );
- sprintf( propname, "/radios/nav[%d]/to-flag", index );
+ snprintf(propname, 256, "/radios/nav[%d]/to-flag", index);
fgTie( propname, this, &FGNavCom::get_nav_to_flag );
- sprintf( propname, "/radios/nav[%d]/from-flag", index );
+ snprintf(propname, 256, "/radios/nav[%d]/from-flag", index);
fgTie( propname, this, &FGNavCom::get_nav_from_flag );
- sprintf( propname, "/radios/nav[%d]/in-range", index );
+ snprintf(propname, 256, "/radios/nav[%d]/in-range", index);
fgTie( propname, this, &FGNavCom::get_nav_inrange );
- sprintf( propname, "/radios/nav[%d]/heading-needle-deflection", index );
- fgTie( propname, this, &FGNavCom::get_nav_heading_needle_deflection );
+ snprintf(propname, 256, "/radios/nav[%d]/heading-needle-deflection", index);
+ fgTie( propname, this, &FGNavCom::get_nav_cdi_deflection );
- sprintf( propname, "/radios/nav[%d]/has-gs", index );
+ snprintf(propname, 256, "/radios/nav[%d]/has-gs", index);
fgTie( propname, this, &FGNavCom::get_nav_has_gs );
- sprintf( propname, "/radios/nav[%d]/gs-needle-deflection", index );
- fgTie( propname, this, &FGNavCom::get_nav_gs_needle_deflection );
+ snprintf(propname, 256, "/radios/nav[%d]/nav-loc", index);
+ fgTie( propname, this, &FGNavCom::get_nav_loc );
+
+ snprintf(propname, 256, "/radios/nav[%d]/gs-needle-deflection", index);
+ fgTie( propname, this, &FGNavCom::get_nav_gs_deflection );
+
+ snprintf(propname, 256, "/radios/nav[%d]/nav-id", index);
+ fgTie( propname, this, &FGNavCom::get_nav_id );
+
+ // put nav_id characters into seperate properties for instrument displays
+ snprintf(propname, 256, "/radios/nav[%d]/nav-id_asc1", index);
+ fgTie( propname, this, &FGNavCom::get_nav_id_c1 );
+
+ snprintf(propname, 256, "/radios/nav[%d]/nav-id_asc2", index);
+ fgTie( propname, this, &FGNavCom::get_nav_id_c2 );
+
+ snprintf(propname, 256, "/radios/nav[%d]/nav-id_asc3", index);
+ fgTie( propname, this, &FGNavCom::get_nav_id_c3 );
+
+ snprintf(propname, 256, "/radios/nav[%d]/nav-id_asc4", index);
+ fgTie( propname, this, &FGNavCom::get_nav_id_c4 );
// end of binding
}
FGNavCom::unbind ()
{
char propname[256];
+ // FIXME: Get rid of snprintf
- sprintf( propname, "/radios/comm[%d]/inputs/power-btn", index );
+ snprintf(propname, 256, "/radios/comm[%d]/inputs/power-btn", index);
fgUntie( propname );
- sprintf( propname, "/radios/comm[%d]/frequencies/selected-mhz", index );
+ snprintf(propname, 256, "/radios/comm[%d]/frequencies/selected-mhz", index);
fgUntie( propname );
- sprintf( propname, "/radios/comm[%d]/frequencies/standby-mhz", index );
+ snprintf(propname, 256, "/radios/comm[%d]/frequencies/standby-mhz", index);
fgUntie( propname );
- sprintf( propname, "/radios/nav[%d]/frequencies/selected-mhz", index );
+ snprintf(propname, 256, "/radios/nav[%d]/frequencies/selected-mhz", index);
fgUntie( propname );
- sprintf( propname, "/radios/nav[%d]/frequencies/standby-mhz", index );
+ snprintf(propname, 256, "/radios/nav[%d]/frequencies/standby-mhz", index);
fgUntie( propname );
- sprintf( propname, "/radios/nav[%d]/radials/actual-deg", index );
+ snprintf(propname, 256, "/radios/nav[%d]/radials/actual-deg", index);
fgUntie( propname );
- sprintf( propname, "/radios/nav[%d]/radials/selected-deg", index );
+ snprintf(propname, 256, "/radios/nav[%d]/radials/selected-deg", index);
fgUntie( propname );
- sprintf( propname, "/radios/nav[%d]/ident", index );
+ snprintf(propname, 256, "/radios/nav[%d]/ident", index);
fgUntie( propname );
- sprintf( propname, "/radios/nav[%d]/to-flag", index );
+ snprintf(propname, 256, "/radios/nav[%d]/to-flag", index);
fgUntie( propname );
- sprintf( propname, "/radios/nav[%d]/from-flag", index );
+ snprintf(propname, 256, "/radios/nav[%d]/from-flag", index);
fgUntie( propname );
- sprintf( propname, "/radios/nav[%d]/in-range", index );
+ snprintf(propname, 256, "/radios/nav[%d]/in-range", index);
fgUntie( propname );
- sprintf( propname, "/radios/nav[%d]/heading-needle-deflection", index );
+ snprintf(propname, 256, "/radios/nav[%d]/heading-needle-deflection", index);
fgUntie( propname );
- sprintf( propname, "/radios/nav[%d]/gs-needle-deflection", index );
+ snprintf(propname, 256, "/radios/nav[%d]/gs-needle-deflection", index);
fgUntie( propname );
}
////////////////////////////////////////////////////////////////////////
if ( nav_valid && power_btn && (bus_power->getDoubleValue() > 1.0)
- && nav_servicable->getBoolValue() )
+ && nav_serviceable->getBoolValue() )
{
station = Point3D( nav_x, nav_y, nav_z );
nav_loc_dist = aircraft.distance3D( station );
if ( nav_has_gs ) {
- station = Point3D( nav_gs_x, nav_gs_y, nav_gs_z );
- nav_gs_dist = aircraft.distance3D( station );
- // wgs84 heading to glide slope
+ // find closest distance to the gs base line
+ sgdVec3 p;
+ sgdSetVec3( p, aircraft.x(), aircraft.y(), aircraft.z() );
+ sgdVec3 p0;
+ sgdSetVec3( p0, nav_gs_x, nav_gs_y, nav_gs_z );
+ double dist = sgdClosestPointToLineDistSquared( p, p0,
+ gs_base_vec );
+ nav_gs_dist = sqrt( dist );
+ // cout << nav_gs_dist;
+
+ // Point3D tmp( nav_gs_x, nav_gs_y, nav_gs_z );
+ // cout << " (" << aircraft.distance3D( tmp ) << ")" << endl;
+
+ // wgs84 heading to glide slope (to determine sign of distance)
geo_inverse_wgs_84( elev,
lat * SGD_RADIANS_TO_DEGREES,
lon * SGD_RADIANS_TO_DEGREES,
nav_gslat, nav_gslon,
&az1, &az2, &s );
- double r = az1 - nav_radial;
+ double r = az1 - nav_target_radial;
while ( r > 180.0 ) { r -= 360.0;}
while ( r < -180.0 ) { r += 360.0;}
if ( r >= -90.0 && r <= 90.0 ) {
} else {
nav_gs_dist_signed = -nav_gs_dist;
}
- /* cout << "Target Radial = " << nav_radial
+ /* cout << "Target Radial = " << nav_target_radial
<< " Bearing = " << az1
<< " dist (signed) = " << nav_gs_dist_signed
<< endl; */
nav_loclat, nav_loclon,
&az1, &az2, &s );
// cout << "az1 = " << az1 << " magvar = " << nav_magvar << endl;
- nav_heading = az1 - nav_magvar;
+ nav_radial = az2 - nav_twist;
// cout << " heading = " << nav_heading
// << " dist = " << nav_dist << endl;
if ( nav_loc ) {
- double offset = nav_heading - nav_radial;
+ double offset = nav_radial - nav_target_radial;
while ( offset < -180.0 ) { offset += 360.0; }
while ( offset > 180.0 ) { offset -= 360.0; }
// cout << "ils offset = " << offset << endl;
}
if ( !nav_loc ) {
- nav_radial = nav_sel_radial;
+ nav_target_radial = nav_sel_radial;
}
} else {
nav_inrange = false;
// cout << "not picking up vor. :-(" << endl;
}
- if ( nav_valid && nav_inrange && nav_servicable->getBoolValue() ) {
+ if ( nav_valid && nav_inrange && nav_serviceable->getBoolValue() ) {
// play station ident via audio system if on + ident,
// otherwise turn it off
if ( power_btn && (bus_power->getDoubleValue() > 1.0)
&& nav_ident_btn && audio_btn )
{
- FGSimpleSound *sound;
+ SGSimpleSound *sound;
sound = globals->get_soundmgr()->find( nav_fx_name );
if ( sound != NULL ) {
sound->set_volume( nav_vol_btn );
nav_gslon = ils->get_gslon();
nav_gslat = ils->get_gslat();
nav_elev = ils->get_gselev();
- nav_magvar = 0;
+ nav_twist = 0;
nav_range = FG_ILS_DEFAULT_RANGE;
nav_effective_range = nav_range;
nav_target_gs = ils->get_gsangle();
- nav_radial = ils->get_locheading();
- while ( nav_radial < 0.0 ) { nav_radial += 360.0; }
- while ( nav_radial > 360.0 ) { nav_radial -= 360.0; }
+ nav_target_radial = ils->get_locheading();
+ while ( nav_target_radial < 0.0 ) { nav_target_radial += 360.0; }
+ while ( nav_target_radial > 360.0 ) { nav_target_radial -= 360.0; }
nav_x = ils->get_x();
nav_y = ils->get_y();
nav_z = ils->get_z();
nav_gs_y = ils->get_gs_y();
nav_gs_z = ils->get_gs_z();
+ // derive GS baseline
+ double tlon, tlat, taz;
+ geo_direct_wgs_84 ( 0.0, nav_gslat, nav_gslon, nav_target_radial + 90,
+ 100.0, &tlat, &tlon, &taz );
+ // cout << nav_gslon << "," << nav_gslat << " "
+ // << tlon << "," << tlat << " (" << nav_elev << ")" << endl;
+ Point3D p1 = sgGeodToCart( Point3D(tlon*SGD_DEGREES_TO_RADIANS,
+ tlat*SGD_DEGREES_TO_RADIANS,
+ nav_elev*SG_FEET_TO_METER) );
+ // cout << nav_gs_x << "," << nav_gs_y << "," << nav_gs_z << endl;
+ // cout << p1 << endl;
+ sgdSetVec3( gs_base_vec,
+ p1.x()-nav_gs_x, p1.y()-nav_gs_y, p1.z()-nav_gs_z );
+ // cout << gs_base_vec[0] << "," << gs_base_vec[1] << ","
+ // << gs_base_vec[2] << endl;
+
if ( globals->get_soundmgr()->exists( nav_fx_name ) ) {
globals->get_soundmgr()->remove( nav_fx_name );
}
- FGSimpleSound *sound;
+ SGSimpleSound *sound;
sound = morse.make_ident( nav_trans_ident, LO_FREQUENCY );
sound->set_volume( 0.3 );
globals->get_soundmgr()->add( sound, nav_fx_name );
nav_loclon = nav->get_lon();
nav_loclat = nav->get_lat();
nav_elev = nav->get_elev();
- nav_magvar = nav->get_magvar();
+ nav_twist = nav->get_magvar();
nav_range = nav->get_range();
nav_effective_range = adjustNavRange(nav_elev, elev, nav_range);
nav_target_gs = 0.0;
- nav_radial = nav_sel_radial;
+ nav_target_radial = nav_sel_radial;
nav_x = nav->get_x();
nav_y = nav->get_y();
nav_z = nav->get_z();
if ( globals->get_soundmgr()->exists( nav_fx_name ) ) {
globals->get_soundmgr()->remove( nav_fx_name );
}
- FGSimpleSound *sound;
+ SGSimpleSound *sound;
sound = morse.make_ident( nav_trans_ident, LO_FREQUENCY );
sound->set_volume( 0.3 );
if ( globals->get_soundmgr()->add( sound, nav_fx_name ) ) {
} else {
nav_valid = false;
nav_id = "";
- nav_radial = 0;
+ nav_target_radial = 0;
nav_trans_ident = "";
last_nav_id = "";
if ( ! globals->get_soundmgr()->remove( nav_fx_name ) ) {
// return the amount of heading needle deflection, returns a value
// clamped to the range of ( -10 , 10 )
-double FGNavCom::get_nav_heading_needle_deflection() const {
+double FGNavCom::get_nav_cdi_deflection() const {
double r;
if ( nav_inrange
- && nav_servicable->getBoolValue() && cdi_servicable->getBoolValue() )
+ && nav_serviceable->getBoolValue() && cdi_serviceable->getBoolValue() )
{
- r = nav_heading - nav_radial;
- // cout << "Radial = " << nav_radial
- // << " Bearing = " << nav_heading << endl;
+ r = nav_radial - nav_target_radial;
+ // cout << "Target radial = " << nav_target_radial
+ // << " Actual radial = " << nav_radial << endl;
while ( r > 180.0 ) { r -= 360.0;}
while ( r < -180.0 ) { r += 360.0;}
r = ( r<0.0 ? -r-180.0 : -r+180.0 );
// According to Robin Peel, the ILS is 4x more sensitive than a vor
+ r = -r; // reverse, since radial is outbound
if ( nav_loc ) { r *= 4.0; }
if ( r < -10.0 ) { r = -10.0; }
if ( r > 10.0 ) { r = 10.0; }
// return the amount of glide slope needle deflection (.i.e. the
// number of degrees we are off the glide slope * 5.0
-double FGNavCom::get_nav_gs_needle_deflection() const {
+double FGNavCom::get_nav_gs_deflection() const {
if ( nav_inrange && nav_has_gs
- && nav_servicable->getBoolValue() && gs_servicable->getBoolValue() )
+ && nav_serviceable->getBoolValue() && gs_serviceable->getBoolValue() )
{
double x = nav_gs_dist;
double y = (fgGetDouble("/position/altitude-ft") - nav_elev)
* SG_FEET_TO_METER;
- double angle = atan2( y, x ) * SGD_RADIANS_TO_DEGREES;
+ // cout << "dist = " << x << " height = " << y << endl;
+ double angle = asin( y / x ) * SGD_RADIANS_TO_DEGREES;
return (nav_target_gs - angle) * 5.0;
} else {
return 0.0;
FGNavCom::get_nav_to_flag () const
{
if ( nav_inrange
- && nav_servicable->getBoolValue()
- && tofrom_servicable->getBoolValue() )
+ && nav_serviceable->getBoolValue()
+ && tofrom_serviceable->getBoolValue() )
{
- double offset = fabs(nav_heading - nav_radial);
+ double offset = fabs(nav_radial - nav_target_radial);
if (nav_loc) {
return true;
} else {
- return (offset <= 90.0 || offset >= 270.0);
+ return !(offset <= 90.0 || offset >= 270.0);
}
} else {
return false;
FGNavCom::get_nav_from_flag () const
{
if ( nav_inrange
- && nav_servicable->getBoolValue()
- && tofrom_servicable->getBoolValue() ) {
- double offset = fabs(nav_heading - nav_radial);
+ && nav_serviceable->getBoolValue()
+ && tofrom_serviceable->getBoolValue() ) {
+ double offset = fabs(nav_radial - nav_target_radial);
if (nav_loc) {
return false;
} else {
- return (offset > 90.0 && offset < 270.0);
+ return !(offset > 90.0 && offset < 270.0);
}
} else {
return false;
}
}
+
+
+/**
+ * Return the current radial.
+ */
+double
+FGNavCom::get_nav_radial () const
+{
+ return nav_radial;
+}
+
+double
+FGNavCom::get_nav_reciprocal_radial () const
+{
+ double recip = nav_radial + 180;
+ if ( recip >= 360 ) {
+ recip -= 360;
+ }
+ return recip;
+}
projects / flightgear.git / blobdiff