// $Id$
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h> // snprintf
+
+#include <simgear/compiler.h>
+#include <simgear/math/sg_random.h>
+
#include <Aircraft/aircraft.hxx>
-#include <Main/bfi.hxx>
#include <Navaids/ilslist.hxx>
+#include <Navaids/mkrbeacons.hxx>
#include <Navaids/navlist.hxx>
#include "radiostack.hxx"
-/**
- * Boy, this is ugly! Make the VOR range vary by altitude difference.
- */
-static inline double
-kludgeRange (double stationElev, double aircraftElev, double nominalRange)
-{
- // Assume that the nominal range (usually
- // 50nm) applies at a 5,000 ft difference.
- // Just a wild guess!
- double factor = ((aircraftElev*METER_TO_FEET) - stationElev) / 1000.0;
- double range = fabs(nominalRange * factor);
-
- // Clamp the range to keep it sane; for
- // now, never less than 25% or more than
- // 500% of nominal range.
- if (range < nominalRange/4.0) {
- range = nominalRange/4.0;
- } else if (range > nominalRange*5.0) {
- range = nominalRange*5.0;
- }
-
- return range;
-}
+#include <string>
+SG_USING_STD(string);
FGRadioStack *current_radiostack;
// Constructor
FGRadioStack::FGRadioStack() {
- nav1_dme_dist = 0.0;
- need_update = true;
}
// Destructor
-FGRadioStack::~FGRadioStack() {
+FGRadioStack::~FGRadioStack()
+{
+ adf.unbind();
+ beacon.unbind();
+ navcom1.unbind();
+ navcom2.unbind();
+ xponder.unbind();
}
-// Search the database for the current frequencies given current location
-void FGRadioStack::update( double lon, double lat, double elev ) {
- need_update = false;
-
- Point3D aircraft = sgGeodToCart( Point3D( lon, lat, elev ) );
- Point3D station;
- double az1, az2, s;
-
- if ( nav1_valid ) {
- station = Point3D( nav1_x, nav1_y, nav1_z );
- nav1_loc_dist = aircraft.distance3D( station );
-
- if ( nav1_has_dme ) {
- // staightline distance
- station = Point3D( nav1_dme_x, nav1_dme_y, nav1_dme_z );
- nav1_dme_dist = aircraft.distance3D( station );
- } else {
- nav1_dme_dist = 0.0;
- }
-
- if ( nav1_has_gs ) {
- station = Point3D( nav1_gs_x, nav1_gs_y, nav1_gs_z );
- nav1_gs_dist = aircraft.distance3D( station );
- } else {
- nav1_gs_dist = 0.0;
- }
-
- if ( nav1_loc_dist < nav1_effective_range * NM_TO_METER ) {
- nav1_inrange = true;
-
- // wgs84 heading
- geo_inverse_wgs_84( elev, lat * RAD_TO_DEG, lon * RAD_TO_DEG,
- nav1_loclat, nav1_loclon,
- &az1, &az2, &s );
- nav1_heading = az1;
- // Alex: nav1_heading = - (az1 - FGBFI::getMagVar() / RAD_TO_DEG);
-
- // cout << " heading = " << nav1_heading
- // << " dist = " << nav1_dist << endl;
- } else {
- nav1_inrange = false;
- }
-
- if ( nav1_loc ) {
- } else {
- nav1_radial = nav1_sel_radial;
- }
- } else {
- nav1_inrange = false;
- // cout << "not picking up vor. :-(" << endl;
- }
-
- if ( nav2_valid ) {
- station = Point3D( nav2_x, nav2_y, nav2_z );
- nav2_loc_dist = aircraft.distance3D( station );
-
- if ( nav2_has_dme ) {
- // staightline distance
- station = Point3D( nav2_dme_x, nav2_dme_y, nav2_dme_z );
- nav2_dme_dist = aircraft.distance3D( station );
- } else {
- nav2_dme_dist = 0.0;
- }
-
- if ( nav2_has_gs ) {
- station = Point3D( nav2_gs_x, nav2_gs_y, nav2_gs_z );
- nav2_gs_dist = aircraft.distance3D( station );
- } else {
- nav2_gs_dist = 0.0;
- }
-
- if ( nav2_loc_dist < nav2_effective_range * NM_TO_METER ) {
- nav2_inrange = true;
-
- // wgs84 heading
- geo_inverse_wgs_84( elev, lat * RAD_TO_DEG, lon * RAD_TO_DEG,
- nav2_loclat, nav2_loclon,
- &az1, &az2, &s );
- nav2_heading = az1;
- // Alex: nav2_heading = - (az1 - FGBFI::getMagVar() / RAD_TO_DEG);
-
- // cout << " heading = " << nav2_heading
- // << " dist = " << nav2_dist << endl;
- } else {
- nav2_inrange = false;
- }
-
- if ( !nav2_loc ) {
- nav2_radial = nav2_sel_radial;
- }
- } else {
- nav2_inrange = false;
- // cout << "not picking up vor. :-(" << endl;
- }
+void
+FGRadioStack::init ()
+{
+ navcom1.set_bind_index( 0 );
+ navcom1.init();
- // adf
- if ( adf_valid ) {
- // staightline distance
- station = Point3D( adf_x, adf_y, adf_z );
- adf_dist = aircraft.distance3D( station );
+ navcom2.set_bind_index( 1 );
+ navcom2.init();
- if ( adf_dist < adf_effective_range * NM_TO_METER ) {
- adf_inrange = true;
+ adf.init();
+ beacon.init();
+ xponder.init();
- // wgs84 heading
- geo_inverse_wgs_84( elev, lat * RAD_TO_DEG, lon * RAD_TO_DEG,
- adf_lat, adf_lon,
- &az1, &az2, &s );
- adf_heading = az1;
+ search();
+ update(0); // FIXME: use dt
- // cout << " heading = " << nav2_heading
- // << " dist = " << nav2_dist << endl;
- } else {
- adf_inrange = false;
- }
- } else {
- adf_inrange = false;
- }
+ // Search radio database once per second
+ globals->get_event_mgr()->addTask( "fgRadioSearch()", current_radiostack,
+ &FGRadioStack::search, 1 );
}
-// Update current nav/adf radio stations based on current postition
-void FGRadioStack::search( double lon, double lat, double elev ) {
- // nav1
- FGILS ils;
- FGNav nav;
-
- if ( current_ilslist->query( lon, lat, elev, nav1_freq, &ils ) ) {
- nav1_valid = true;
- nav1_loc = true;
- nav1_has_dme = ils.get_has_dme();
- nav1_has_gs = ils.get_has_gs();
-
- nav1_loclon = ils.get_loclon();
- nav1_loclat = ils.get_loclat();
- nav1_gslon = ils.get_gslon();
- nav1_gslat = ils.get_gslat();
- nav1_dmelon = ils.get_dmelon();
- nav1_dmelat = ils.get_dmelat();
- nav1_elev = ils.get_gselev();
- nav1_effective_range = FG_ILS_DEFAULT_RANGE;
- nav1_target_gs = ils.get_gsangle();
- nav1_radial = ils.get_locheading();
- while ( nav1_radial < 0.0 ) { nav1_radial += 360.0; }
- while ( nav1_radial > 360.0 ) { nav1_radial -= 360.0; }
- nav1_x = ils.get_x();
- nav1_y = ils.get_y();
- nav1_z = ils.get_z();
- nav1_gs_x = ils.get_gs_x();
- nav1_gs_y = ils.get_gs_y();
- nav1_gs_z = ils.get_gs_z();
- nav1_dme_x = ils.get_dme_x();
- nav1_dme_y = ils.get_dme_y();
- nav1_dme_z = ils.get_dme_z();
- // cout << "Found an ils station in range" << endl;
- // cout << " id = " << ils.get_locident() << endl;
- } else if ( current_navlist->query( lon, lat, elev, nav1_freq, &nav ) ) {
- nav1_valid = true;
- nav1_loc = false;
- nav1_has_dme = nav.get_has_dme();
- nav1_has_gs = false;
- nav1_loclon = nav.get_lon();
- nav1_loclat = nav.get_lat();
- nav1_elev = nav.get_elev();
- nav1_effective_range = kludgeRange(nav1_elev, elev, nav.get_range());
- nav1_target_gs = 0.0;
- nav1_radial = nav1_sel_radial;
- nav1_x = nav1_dme_x = nav.get_x();
- nav1_y = nav1_dme_y = nav.get_y();
- nav1_z = nav1_dme_z = nav.get_z();
- // cout << "Found a vor station in range" << endl;
- // cout << " id = " << nav.get_ident() << endl;
- } else {
- nav1_valid = false;
- // cout << "not picking up vor1. :-(" << endl;
- }
+void
+FGRadioStack::bind ()
+{
+ adf.bind();
+ beacon.bind();
+ dme.bind();
+ navcom1.set_bind_index( 0 );
+ navcom1.bind();
+ navcom2.set_bind_index( 1 );
+ navcom2.bind();
+ xponder.bind();
+}
- if ( current_ilslist->query( lon, lat, elev, nav2_freq, &ils ) ) {
- nav2_valid = true;
- nav2_loc = true;
- nav2_has_dme = ils.get_has_dme();
- nav2_has_gs = ils.get_has_gs();
- nav2_loclon = ils.get_loclon();
- nav2_loclat = ils.get_loclat();
- nav2_elev = ils.get_gselev();
- nav2_effective_range = FG_ILS_DEFAULT_RANGE;
- nav2_target_gs = ils.get_gsangle();
- nav2_radial = ils.get_locheading();
- while ( nav2_radial < 0.0 ) { nav2_radial += 360.0; }
- while ( nav2_radial > 360.0 ) { nav2_radial -= 360.0; }
- nav2_x = ils.get_x();
- nav2_y = ils.get_y();
- nav2_z = ils.get_z();
- nav2_gs_x = ils.get_gs_x();
- nav2_gs_y = ils.get_gs_y();
- nav2_gs_z = ils.get_gs_z();
- nav2_dme_x = ils.get_dme_x();
- nav2_dme_y = ils.get_dme_y();
- nav2_dme_z = ils.get_dme_z();
- // cout << "Found an ils station in range" << endl;
- // cout << " id = " << ils.get_locident() << endl;
- } else if ( current_navlist->query( lon, lat, elev, nav2_freq, &nav ) ) {
- nav2_valid = true;
- nav2_loc = false;
- nav2_has_dme = nav.get_has_dme();
- nav2_has_dme = false;
- nav2_loclon = nav.get_lon();
- nav2_loclat = nav.get_lat();
- nav2_elev = nav.get_elev();
- nav2_effective_range = kludgeRange(nav2_elev, elev, nav.get_range());
- nav2_target_gs = 0.0;
- nav2_radial = nav2_sel_radial;
- nav2_x = nav2_dme_x = nav.get_x();
- nav2_y = nav2_dme_y = nav.get_y();
- nav2_z = nav2_dme_z = nav.get_z();
- // cout << "Found a vor station in range" << endl;
- // cout << " id = " << nav.get_ident() << endl;
- } else {
- nav2_valid = false;
- // cout << "not picking up vor2. :-(" << endl;
- }
+void
+FGRadioStack::unbind ()
+{
+ adf.unbind();
+ beacon.unbind();
+ dme.unbind();
+ navcom1.unbind();
+ navcom2.unbind();
+ xponder.unbind();
+}
- // adf
- if ( current_navlist->query( lon, lat, elev, adf_freq, &nav ) ) {
- adf_valid = true;
- adf_lon = nav.get_lon();
- adf_lat = nav.get_lat();
- adf_elev = nav.get_elev();
- adf_effective_range = kludgeRange(adf_elev, elev, nav.get_range());
- adf_x = nav.get_x();
- adf_y = nav.get_y();
- adf_z = nav.get_z();
- // cout << "Found an adf station in range" << endl;
- // cout << " id = " << nav.get_ident() << endl;
- } else {
- adf_valid = false;
- // cout << "not picking up adf. :-(" << endl;
- }
+// Update the various nav values based on position and valid tuned in navs
+void
+FGRadioStack::update(double dt)
+{
+ adf.update( dt );
+ beacon.update( dt );
+ navcom1.update( dt );
+ navcom2.update( dt );
+ dme.update( dt ); // dme is updated after the navcom's
+ xponder.update( dt );
}
-// periodic radio station search wrapper
-void fgRadioSearch( void ) {
- current_radiostack->search( cur_fdm_state->get_Longitude(),
- cur_fdm_state->get_Latitude(),
- cur_fdm_state->get_Altitude() * FEET_TO_METER );
+// Update current nav/adf radio stations based on current postition
+void FGRadioStack::search()
+{
+ adf.search();
+ beacon.search();
+ navcom1.search();
+ navcom2.search();
+ dme.search();
+ xponder.search();
}
projects / flightgear.git / blobdiff