From 1c2c76709e1b85bd0e9805e747177a080345e07f Mon Sep 17 00:00:00 2001 From: curt Date: Fri, 19 Nov 2004 23:10:44 +0000 Subject: [PATCH] Roy Ovesen: remove src files from Cockpit and move them over to Instrumentation. --- src/{Cockpit => Instrumentation}/kt_70.cxx | 131 ++- src/{Cockpit => Instrumentation}/kt_70.hxx | 5 +- .../marker_beacon.cxx | 78 +- .../marker_beacon.hxx | 10 +- src/Instrumentation/navradio.cxx | 891 ++++++++++++++++++ src/Instrumentation/navradio.hxx | 223 +++++ 6 files changed, 1272 insertions(+), 66 deletions(-) rename src/{Cockpit => Instrumentation}/kt_70.cxx (53%) rename src/{Cockpit => Instrumentation}/kt_70.hxx (98%) rename src/{Cockpit => Instrumentation}/marker_beacon.cxx (82%) rename src/{Cockpit => Instrumentation}/marker_beacon.hxx (93%) create mode 100644 src/Instrumentation/navradio.cxx create mode 100644 src/Instrumentation/navradio.hxx diff --git a/src/Cockpit/kt_70.cxx b/src/Instrumentation/kt_70.cxx similarity index 53% rename from src/Cockpit/kt_70.cxx rename to src/Instrumentation/kt_70.cxx index 99d2ad9ae..4286aeafb 100644 --- a/src/Cockpit/kt_70.cxx +++ b/src/Instrumentation/kt_70.cxx @@ -25,7 +25,9 @@ # include #endif -#include // snprintf +#include +#include +#include #include #include @@ -36,12 +38,7 @@ // Constructor -FGKT_70::FGKT_70() : - lon_node(fgGetNode("/position/longitude-deg", true)), - lat_node(fgGetNode("/position/latitude-deg", true)), - alt_node(fgGetNode("/position/altitude-ft", true)), - bus_power(fgGetNode("/systems/electrical/outputs/transponder", true)), - serviceable_node(fgGetNode("/radios/kt-70/inputs/serviceable", true)), +FGKT_70::FGKT_70(SGPropertyNode *node) : r_flash_time(0.0), ident_mode(false), ident_btn(false), @@ -55,8 +52,28 @@ FGKT_70::FGKT_70() : gnd_ann(0), on_ann(0), sby_ann(0), - reply_ann(0) + reply_ann(0), + name("kt-70"), + num(0) { + int i; + for ( i = 0; i < node->nChildren(); ++i ) { + SGPropertyNode *child = node->getChild(i); + string cname = child->getName(); + string cval = child->getStringValue(); + if ( cname == "name" ) { + name = cval; + } else if ( cname == "number" ) { + num = child->getIntValue(); + } else { + SG_LOG( SG_INSTR, SG_WARN, + "Error in kt-70 config logic" ); + if ( name.length() ) { + SG_LOG( SG_INSTR, SG_WARN, "Section = " << name ); + } + } + } + } @@ -64,76 +81,102 @@ FGKT_70::FGKT_70() : FGKT_70::~FGKT_70() { } -void FGKT_70::init () { +void FGKT_70::init () +{ + string branch; + branch = "/instrumentation/" + name; + + SGPropertyNode *node = fgGetNode(branch.c_str(), num, true ); + // Inputs + lon_node = fgGetNode("/position/longitude-deg", true); + lat_node = fgGetNode("/position/latitude-deg", true); + alt_node = fgGetNode("/position/altitude-ft", true); + bus_power = fgGetNode("/systems/electrical/outputs/transponder", true); + serviceable_node = (node->getChild("inputs", 0, true)) + ->getChild("serviceable", 0, true); } void FGKT_70::bind () { + std::ostringstream temp; + string branch; + temp << num; + branch = "/instrumentation/" + name + "[" + temp.str() + "]"; // internal values // modes // input and buttons - fgTie("/radios/kt-70/inputs/ident-btn", this, + fgTie((branch + "/inputs/ident-btn").c_str(), this, &FGKT_70::get_ident_btn, &FGKT_70::set_ident_btn); - fgSetArchivable("/radios/kt-70/inputs/rotation-deg"); - fgTie("/radios/kt-70/inputs/digit1", this, + fgSetArchivable((branch + "/inputs/rotation-deg").c_str()); + fgTie((branch + "/inputs/digit1").c_str(), this, &FGKT_70::get_digit1, &FGKT_70::set_digit1); - fgSetArchivable("/radios/kt-70/inputs/digit1"); - fgTie("/radios/kt-70/inputs/digit2", this, + fgSetArchivable((branch + "/inputs/digit1").c_str()); + fgTie((branch + "/inputs/digit2").c_str(), this, &FGKT_70::get_digit2, &FGKT_70::set_digit2); - fgSetArchivable("/radios/kt-70/inputs/digit2"); - fgTie("/radios/kt-70/inputs/digit3", this, + fgSetArchivable((branch + "/inputs/digit2").c_str()); + fgTie((branch + "/inputs/digit3").c_str(), this, &FGKT_70::get_digit3, &FGKT_70::set_digit3); - fgSetArchivable("/radios/kt-70/inputs/digit3"); - fgTie("/radios/kt-70/inputs/digit4", this, + fgSetArchivable((branch + "/inputs/digit3").c_str()); + fgTie((branch + "/inputs/digit4").c_str(), this, &FGKT_70::get_digit4, &FGKT_70::set_digit4); - fgSetArchivable("/radios/kt-70/inputs/digit4"); - fgTie("/radios/kt-70/inputs/func-knob", this, + fgSetArchivable((branch + "/inputs/digit4").c_str()); + fgTie((branch + "/inputs/func-knob").c_str(), this, &FGKT_70::get_func_knob, &FGKT_70::set_func_knob); - fgSetArchivable("/radios/kt-70/inputs/func-knob"); + fgSetArchivable((branch + "/inputs/func-knob").c_str()); // outputs - fgTie("/radios/kt-70/outputs/id-code", this, + fgTie((branch + "/outputs/id-code").c_str(), this, &FGKT_70::get_id_code, &FGKT_70::set_id_code); - fgSetArchivable("/radios/kt-70/outputs/id-code"); - fgTie("/radios/kt-70/outputs/flight-level", this, + fgSetArchivable((branch + "/outputs/id-code").c_str()); + fgTie((branch + "/outputs/flight-level").c_str(), this, &FGKT_70::get_flight_level); // annunciators - fgTie("/radios/kt-70/annunciators/fl", this, &FGKT_70::get_fl_ann ); - fgTie("/radios/kt-70/annunciators/alt", this, &FGKT_70::get_alt_ann ); - fgTie("/radios/kt-70/annunciators/gnd", this, &FGKT_70::get_gnd_ann ); - fgTie("/radios/kt-70/annunciators/on", this, &FGKT_70::get_on_ann ); - fgTie("/radios/kt-70/annunciators/sby", this, &FGKT_70::get_sby_ann ); - fgTie("/radios/kt-70/annunciators/reply", this, &FGKT_70::get_reply_ann ); + fgTie((branch + "/annunciators/fl").c_str(), this, + &FGKT_70::get_fl_ann ); + fgTie((branch + "/annunciators/alt").c_str(), this, + &FGKT_70::get_alt_ann ); + fgTie((branch + "/annunciators/gnd").c_str(), this, + &FGKT_70::get_gnd_ann ); + fgTie((branch + "/annunciators/on").c_str(), this, + &FGKT_70::get_on_ann ); + fgTie((branch + "/annunciators/sby").c_str(), this, + &FGKT_70::get_sby_ann ); + fgTie((branch + "/annunciators/reply").c_str(), this, + &FGKT_70::get_reply_ann ); } void FGKT_70::unbind () { + std::ostringstream temp; + string branch; + temp << num; + branch = "/instrumentation/" + name + "[" + temp.str() + "]"; // internal values // modes // input and buttons - fgUntie("/radios/kt-70/inputs/ident-btn"); - fgUntie("/radios/kt-70/inputs/digit1"); - fgUntie("/radios/kt-70/inputs/digit2"); - fgUntie("/radios/kt-70/inputs/digit3"); - fgUntie("/radios/kt-70/inputs/digit4"); - fgUntie("/radios/kt-70/inputs/func-knob"); + fgUntie((branch + "/inputs/ident-btn").c_str()); + fgUntie((branch + "/inputs/digit1").c_str()); + fgUntie((branch + "/inputs/digit2").c_str()); + fgUntie((branch + "/inputs/digit3").c_str()); + fgUntie((branch + "/inputs/digit4").c_str()); + fgUntie((branch + "/inputs/func-knob").c_str()); // outputs - fgUntie("/radios/kt-70/outputs/id-code"); - fgUntie("/radios/kt-70/outputs/flight-level"); + fgUntie((branch + "/outputs/id-code").c_str()); + fgUntie((branch + "/outputs/flight-level").c_str()); // annunciators - fgUntie("/radios/kt-70/annunciators/fl"); - fgUntie("/radios/kt-70/annunciators/alt"); - fgUntie("/radios/kt-70/annunciators/gnd"); - fgUntie("/radios/kt-70/annunciators/on"); - fgUntie("/radios/kt-70/annunciators/sby"); - fgUntie("/radios/kt-70/annunciators/reply"); + fgUntie((branch + "/annunciators/fl").c_str()); + fgUntie((branch + "/annunciators/alt").c_str()); + fgUntie((branch + "/annunciators/gnd").c_str()); + fgUntie((branch + "/annunciators/on").c_str()); + fgUntie((branch + "/annunciators/sby").c_str()); + fgUntie((branch + "/annunciators/reply").c_str()); } diff --git a/src/Cockpit/kt_70.hxx b/src/Instrumentation/kt_70.hxx similarity index 98% rename from src/Cockpit/kt_70.hxx rename to src/Instrumentation/kt_70.hxx index 66fd76d07..3f0456f1a 100644 --- a/src/Cockpit/kt_70.hxx +++ b/src/Instrumentation/kt_70.hxx @@ -70,9 +70,12 @@ class FGKT_70 : public SGSubsystem bool sby_ann; // standby bool reply_ann; // reply + string name; + int num; + public: - FGKT_70(); + FGKT_70(SGPropertyNode *node); ~FGKT_70(); void init (); diff --git a/src/Cockpit/marker_beacon.cxx b/src/Instrumentation/marker_beacon.cxx similarity index 82% rename from src/Cockpit/marker_beacon.cxx rename to src/Instrumentation/marker_beacon.cxx index f668f5e77..78f19358d 100644 --- a/src/Cockpit/marker_beacon.cxx +++ b/src/Instrumentation/marker_beacon.cxx @@ -40,19 +40,13 @@ SG_USING_STD(string); // Constructor -FGMarkerBeacon::FGMarkerBeacon() : - lon_node(fgGetNode("/position/longitude-deg", true)), - lat_node(fgGetNode("/position/latitude-deg", true)), - alt_node(fgGetNode("/position/altitude-ft", true)), - bus_power(fgGetNode("/systems/electrical/outputs/navcom[0]", true)), - power_btn(fgGetNode("/radios/marker-beacon/power-btn", true)), - audio_btn(fgGetNode("/radios/marker-beacon/audio-btn", true)), - serviceable(fgGetNode("/instrumentation/marker-beacons/serviceable", true)), - +FGMarkerBeacon::FGMarkerBeacon(SGPropertyNode *node) : need_update(true), outer_blink(false), middle_blink(false), - inner_blink(false) + inner_blink(false), + name("marker-beacon"), + num(0) { SGPath path( globals->get_fg_root() ); SGPath term = path; @@ -66,9 +60,23 @@ FGMarkerBeacon::FGMarkerBeacon() : low_tbl = new SGInterpTable( low.str() ); high_tbl = new SGInterpTable( high.str() ); - power_btn->setBoolValue( true ); - audio_btn->setBoolValue( true ); - serviceable->setBoolValue( true ); + int i; + for ( i = 0; i < node->nChildren(); ++i ) { + SGPropertyNode *child = node->getChild(i); + string cname = child->getName(); + string cval = child->getStringValue(); + if ( cname == "name" ) { + name = cval; + } else if ( cname == "number" ) { + num = child->getIntValue(); + } else { + SG_LOG( SG_INSTR, SG_WARN, + "Error in marker beacon config logic" ); + if ( name.length() ) { + SG_LOG( SG_INSTR, SG_WARN, "Section = " << name ); + } + } + } } @@ -84,6 +92,23 @@ FGMarkerBeacon::~FGMarkerBeacon() void FGMarkerBeacon::init () { + string branch; + branch = "/instrumentation/" + name; + + SGPropertyNode *node = fgGetNode(branch.c_str(), num, true ); + // Inputs + lon_node = fgGetNode("/position/longitude-deg", true); + lat_node = fgGetNode("/position/latitude-deg", true); + alt_node = fgGetNode("/position/altitude-ft", true); + bus_power = fgGetNode("/systems/electrical/outputs/navcom[0]", true); + power_btn = node->getChild("power-btn", 0, true); + audio_btn = node->getChild("audio-btn", 0, true); + serviceable = node->getChild("serviceable", 0, true); + + power_btn->setBoolValue( true ); + audio_btn->setBoolValue( true ); + serviceable->setBoolValue( true ); + morse.init(); beacon.init(); blink.stamp(); @@ -93,14 +118,16 @@ FGMarkerBeacon::init () void FGMarkerBeacon::bind () { + string branch; + branch = "/instrumentation/" + name; - fgTie("/radios/marker-beacon/inner", this, + fgTie((branch + "/inner").c_str(), this, &FGMarkerBeacon::get_inner_blink); - fgTie("/radios/marker-beacon/middle", this, + fgTie((branch + "/middle").c_str(), this, &FGMarkerBeacon::get_middle_blink); - fgTie("/radios/marker-beacon/outer", this, + fgTie((branch + "/outer").c_str(), this, &FGMarkerBeacon::get_outer_blink); } @@ -108,9 +135,12 @@ FGMarkerBeacon::bind () void FGMarkerBeacon::unbind () { - fgUntie("/radios/marker-beacon/inner"); - fgUntie("/radios/marker-beacon/middle"); - fgUntie("/radios/marker-beacon/outer"); + string branch; + branch = "/instrumentation/" + name; + + fgUntie((branch + "/inner").c_str()); + fgUntie((branch + "/middle").c_str()); + fgUntie((branch + "/outer").c_str()); } @@ -121,6 +151,12 @@ FGMarkerBeacon::update(double dt) need_update = false; if ( has_power() && serviceable->getBoolValue() ) { + + // On timeout, scan again + _time_before_search_sec -= dt; + if ( _time_before_search_sec < 0 ) { + search(); + } // marker beacon blinking bool light_on = ( outer_blink || middle_blink || inner_blink ); SGTimeStamp current; @@ -206,6 +242,10 @@ static bool check_beacon_range( double lon_rad, double lat_rad, double elev_m, // Update current nav/adf radio stations based on current postition void FGMarkerBeacon::search() { + + // reset search time + _time_before_search_sec = 1.0; + static fgMkrBeacType last_beacon = NOBEACON; double lon_rad = lon_node->getDoubleValue() * SGD_DEGREES_TO_RADIANS; diff --git a/src/Cockpit/marker_beacon.hxx b/src/Instrumentation/marker_beacon.hxx similarity index 93% rename from src/Cockpit/marker_beacon.hxx rename to src/Instrumentation/marker_beacon.hxx index 9f7158468..5b4760d2d 100644 --- a/src/Cockpit/marker_beacon.hxx +++ b/src/Instrumentation/marker_beacon.hxx @@ -45,6 +45,7 @@ class FGMarkerBeacon : public SGSubsystem SGInterpTable *low_tbl; SGInterpTable *high_tbl; + // Inputs SGPropertyNode *lon_node; SGPropertyNode *lat_node; SGPropertyNode *alt_node; @@ -64,6 +65,12 @@ class FGMarkerBeacon : public SGSubsystem bool middle_blink; bool inner_blink; + string name; + int num; + + // internal periodic station search timer + double _time_before_search_sec; + public: enum fgMkrBeacType { @@ -73,7 +80,7 @@ public: OUTER }; - FGMarkerBeacon(); + FGMarkerBeacon(SGPropertyNode *node); ~FGMarkerBeacon(); void init (); @@ -81,7 +88,6 @@ public: void unbind (); void update (double dt); - // Update nav/adf radios based on current postition void search (); // Marker Beacon Accessors diff --git a/src/Instrumentation/navradio.cxx b/src/Instrumentation/navradio.cxx new file mode 100644 index 000000000..6d00f42b2 --- /dev/null +++ b/src/Instrumentation/navradio.cxx @@ -0,0 +1,891 @@ +// navradio.cxx -- class to manage a nav radio instance +// +// Written by Curtis Olson, started April 2000. +// +// Copyright (C) 2000 - 2002 Curtis L. Olson - http://www.flightgear.org/~curt +// +// 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 +#endif + +#include +#include +#include + +#include +#include +#include +#include + +#include +#include + +#include "navradio.hxx" + +#include +SG_USING_STD(string); + + +// Constructor +FGNavRadio::FGNavRadio(SGPropertyNode *node) : + lon_node(fgGetNode("/position/longitude-deg", true)), + lat_node(fgGetNode("/position/latitude-deg", true)), + alt_node(fgGetNode("/position/altitude-ft", true)), + last_nav_id(""), + last_nav_vor(false), + nav_play_count(0), + nav_last_time(0), + need_update(true), + power_btn(true), + audio_btn(true), + nav_freq(0.0), + nav_alt_freq(0.0), + nav_heading(0.0), + nav_radial(0.0), + nav_target_radial(0.0), + nav_target_radial_true(0.0), + nav_target_auto_hdg(0.0), + nav_gs_rate_of_climb(0.0), + nav_vol_btn(0.0), + nav_ident_btn(true), + horiz_vel(0.0), + last_x(0.0), + name("nav"), + num(0) +{ + SGPath path( globals->get_fg_root() ); + SGPath term = path; + term.append( "Navaids/range.term" ); + SGPath low = path; + low.append( "Navaids/range.low" ); + SGPath high = path; + high.append( "Navaids/range.high" ); + + term_tbl = new SGInterpTable( term.str() ); + low_tbl = new SGInterpTable( low.str() ); + high_tbl = new SGInterpTable( high.str() ); + + int i; + for ( i = 0; i < node->nChildren(); ++i ) { + SGPropertyNode *child = node->getChild(i); + string cname = child->getName(); + string cval = child->getStringValue(); + if ( cname == "name" ) { + name = cval; + } else if ( cname == "number" ) { + num = child->getIntValue(); + } else { + SG_LOG( SG_INSTR, SG_WARN, + "Error in nav radio config logic" ); + if ( name.length() ) { + SG_LOG( SG_INSTR, SG_WARN, "Section = " << name ); + } + } + } + +} + + +// Destructor +FGNavRadio::~FGNavRadio() +{ + delete term_tbl; + delete low_tbl; + delete high_tbl; +} + + +void +FGNavRadio::init () +{ + morse.init(); + + string branch; + branch = "/instrumentation/" + name; + + SGPropertyNode *node = fgGetNode(branch.c_str(), num, true ); + + bus_power = + fgGetNode(("/systems/electrical/outputs/" + name).c_str(), true); + nav_serviceable = node->getChild("serviceable", 0, true); + cdi_serviceable = (node->getChild("cdi", 0, true)) + ->getChild("serviceable", 0, true); + gs_serviceable = (node->getChild("gs", 0, true)) + ->getNode("serviceable"); + tofrom_serviceable = (node->getChild("to-from", 0, true)) + ->getChild("serviceable", 0, true); +} + +void +FGNavRadio::bind () +{ + std::ostringstream temp; + string branch; + temp << num; + branch = "/instrumentation/" + name + "[" + temp.str() + "]"; + + // User inputs + fgTie( (branch + "/frequencies/selected-mhz").c_str() , this, + &FGNavRadio::get_nav_freq, &FGNavRadio::set_nav_freq ); + fgSetArchivable( (branch + "/frequencies/selected-mhz").c_str() ); + + fgTie( (branch + "/frequencies/standby-mhz").c_str() , this, + &FGNavRadio::get_nav_alt_freq, &FGNavRadio::set_nav_alt_freq); + fgSetArchivable( (branch + "/frequencies/standby-mhz").c_str() ); + + fgTie( (branch + "/radials/selected-deg").c_str() , this, + &FGNavRadio::get_nav_sel_radial, &FGNavRadio::set_nav_sel_radial ); + fgSetArchivable((branch + "/radials/selected-deg").c_str() ); + + fgTie( (branch + "/volume").c_str() , this, + &FGNavRadio::get_nav_vol_btn, &FGNavRadio::set_nav_vol_btn ); + fgSetArchivable( (branch + "/volume").c_str() ); + + fgTie( (branch + "/ident").c_str(), this, + &FGNavRadio::get_nav_ident_btn, &FGNavRadio::set_nav_ident_btn ); + fgSetArchivable( (branch + "/ident").c_str() ); + + // Radio outputs + fgTie( (branch + "/audio-btn").c_str(), this, + &FGNavRadio::get_audio_btn, &FGNavRadio::set_audio_btn ); + fgSetArchivable( (branch + "/audio-btn").c_str() ); + + fgTie( (branch + "/heading-deg").c_str(), + this, &FGNavRadio::get_nav_heading ); + + fgTie( (branch + "/radials/actual-deg").c_str(), + this, &FGNavRadio::get_nav_radial ); + + fgTie( (branch + "/radials/target-radial-deg").c_str(), + this, &FGNavRadio::get_nav_target_radial_true ); + + fgTie( (branch + "/radials/target-auto-hdg-deg").c_str(), + this, &FGNavRadio::get_nav_target_auto_hdg ); + + fgTie( (branch + "/to-flag").c_str(), + this, &FGNavRadio::get_nav_to_flag ); + + fgTie( (branch + "/from-flag").c_str(), + this, &FGNavRadio::get_nav_from_flag ); + + fgTie( (branch + "/in-range").c_str(), + this, &FGNavRadio::get_nav_inrange ); + + fgTie( (branch + "/heading-needle-deflection").c_str(), + this, &FGNavRadio::get_nav_cdi_deflection ); + + fgTie( (branch + "/crosstrack-error-m").c_str(), + this, &FGNavRadio::get_nav_cdi_xtrack_error ); + + fgTie( (branch + "/has-gs").c_str(), + this, &FGNavRadio::get_nav_has_gs ); + + fgTie( (branch + "/nav-loc").c_str(), + this, &FGNavRadio::get_nav_loc ); + + fgTie( (branch + "/gs-rate-of-climb").c_str(), + this, &FGNavRadio::get_nav_gs_rate_of_climb ); + + fgTie( (branch + "/gs-needle-deflection").c_str(), + this, &FGNavRadio::get_nav_gs_deflection ); + + fgTie( (branch + "/nav-id").c_str(), + this, &FGNavRadio::get_nav_id ); + + // put nav_id characters into seperate properties for instrument displays + fgTie( (branch + "/nav-id_asc1").c_str(), + this, &FGNavRadio::get_nav_id_c1 ); + + fgTie( (branch + "/nav-id_asc2").c_str(), + this, &FGNavRadio::get_nav_id_c2 ); + + fgTie( (branch + "/nav-id_asc3").c_str(), + this, &FGNavRadio::get_nav_id_c3 ); + + fgTie( (branch + "/nav-id_asc4").c_str(), + this, &FGNavRadio::get_nav_id_c4 ); + + // end of binding +} + + +void +FGNavRadio::unbind () +{ + std::ostringstream temp; + string branch; + temp << num; + branch = "/instrumentation/" + name + "[" + temp.str() + "]"; + + fgUntie( (branch + "/frequencies/selected-mhz").c_str() ); + fgUntie( (branch + "/frequencies/standby-mhz").c_str() ); + fgUntie( (branch + "/radials/actual-deg").c_str() ); + fgUntie( (branch + "/radials/selected-deg").c_str() ); + fgUntie( (branch + "/ident").c_str() ); + fgUntie( (branch + "/to-flag").c_str() ); + fgUntie( (branch + "/from-flag").c_str() ); + fgUntie( (branch + "/in-range").c_str() ); + fgUntie( (branch + "/heading-needle-deflection").c_str() ); + fgUntie( (branch + "/gs-needle-deflection").c_str() ); +} + + +// model standard VOR/DME/TACAN service volumes as per AIM 1-1-8 +double FGNavRadio::adjustNavRange( double stationElev, double aircraftElev, + double nominalRange ) +{ + // extend out actual usable range to be 1.3x the published safe range + const double usability_factor = 1.3; + + // assumptions we model the standard service volume, plus + // ... rather than specifying a cylinder, we model a cone that + // contains the cylinder. Then we put an upside down cone on top + // to model diminishing returns at too-high altitudes. + + // altitude difference + double alt = ( aircraftElev * SG_METER_TO_FEET - stationElev ); + // cout << "aircraft elev = " << aircraftElev * SG_METER_TO_FEET + // << " station elev = " << stationElev << endl; + + if ( nominalRange < 25.0 + SG_EPSILON ) { + // Standard Terminal Service Volume + return term_tbl->interpolate( alt ) * usability_factor; + } else if ( nominalRange < 50.0 + SG_EPSILON ) { + // Standard Low Altitude Service Volume + // table is based on range of 40, scale to actual range + return low_tbl->interpolate( alt ) * nominalRange / 40.0 + * usability_factor; + } else { + // Standard High Altitude Service Volume + // table is based on range of 130, scale to actual range + return high_tbl->interpolate( alt ) * nominalRange / 130.0 + * usability_factor; + } +} + + +// model standard ILS service volumes as per AIM 1-1-9 +double FGNavRadio::adjustILSRange( double stationElev, double aircraftElev, + double offsetDegrees, double distance ) +{ + // assumptions we model the standard service volume, plus + + // altitude difference + // double alt = ( aircraftElev * SG_METER_TO_FEET - stationElev ); +// double offset = fabs( offsetDegrees ); + +// if ( offset < 10 ) { +// return FG_ILS_DEFAULT_RANGE; +// } else if ( offset < 35 ) { +// return 10 + (35 - offset) * (FG_ILS_DEFAULT_RANGE - 10) / 25; +// } else if ( offset < 45 ) { +// return (45 - offset); +// } else if ( offset > 170 ) { +// return FG_ILS_DEFAULT_RANGE; +// } else if ( offset > 145 ) { +// return 10 + (offset - 145) * (FG_ILS_DEFAULT_RANGE - 10) / 25; +// } else if ( offset > 135 ) { +// return (offset - 135); +// } else { +// return 0; +// } + return FG_LOC_DEFAULT_RANGE; +} + + +// Update the various nav values based on position and valid tuned in navs +void +FGNavRadio::update(double dt) +{ + double lon = lon_node->getDoubleValue() * SGD_DEGREES_TO_RADIANS; + double lat = lat_node->getDoubleValue() * SGD_DEGREES_TO_RADIANS; + double elev = alt_node->getDoubleValue() * SG_FEET_TO_METER; + + need_update = false; + + Point3D aircraft = sgGeodToCart( Point3D( lon, lat, elev ) ); + Point3D station; + double az1, az2, s; + + // On timeout, scan again + _time_before_search_sec -= dt; + if ( _time_before_search_sec < 0 ) { + search(); + } + + //////////////////////////////////////////////////////////////////////// + // Nav. + //////////////////////////////////////////////////////////////////////// + + if ( nav_valid && power_btn && (bus_power->getDoubleValue() > 1.0) + && nav_serviceable->getBoolValue() ) + { + station = Point3D( nav_x, nav_y, nav_z ); + nav_loc_dist = aircraft.distance3D( station ); + + if ( nav_has_gs ) { + // 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 = " << nav_gs_dist << endl; + + 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_target_radial; + while ( r > 180.0 ) { r -= 360.0;} + while ( r < -180.0 ) { r += 360.0;} + if ( r >= -90.0 && r <= 90.0 ) { + nav_gs_dist_signed = nav_gs_dist; + } else { + nav_gs_dist_signed = -nav_gs_dist; + } + /* cout << "Target Radial = " << nav_target_radial + << " Bearing = " << az1 + << " dist (signed) = " << nav_gs_dist_signed + << endl; */ + + } else { + nav_gs_dist = 0.0; + } + + // wgs84 heading to localizer + geo_inverse_wgs_84( elev, + lat * SGD_RADIANS_TO_DEGREES, + lon * SGD_RADIANS_TO_DEGREES, + nav_loclat, nav_loclon, + &nav_heading, &az2, &s ); + // cout << "az1 = " << az1 << " magvar = " << nav_magvar << endl; + nav_radial = az2 - nav_twist; + // cout << " heading = " << nav_heading + // << " dist = " << nav_dist << endl; + + if ( nav_loc ) { + 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; + nav_effective_range + = adjustILSRange( nav_elev, elev, offset, + nav_loc_dist * SG_METER_TO_NM ); + } else { + nav_effective_range = adjustNavRange( nav_elev, elev, nav_range ); + } + // cout << "nav range = " << nav_effective_range + // << " (" << nav_range << ")" << endl; + + if ( nav_loc_dist < nav_effective_range * SG_NM_TO_METER ) { + nav_inrange = true; + } else if ( nav_loc_dist < 2 * nav_effective_range * SG_NM_TO_METER ) { + nav_inrange = sg_random() < + ( 2 * nav_effective_range * SG_NM_TO_METER - nav_loc_dist ) / + (nav_effective_range * SG_NM_TO_METER); + } else { + nav_inrange = false; + } + + if ( !nav_loc ) { + nav_target_radial = nav_sel_radial; + } + + // Calculate some values for the nav/ils hold autopilot + + double cur_radial = get_nav_reciprocal_radial(); + if ( nav_loc ) { + // ILS localizers radials are already "true" in our + // database + } else { + cur_radial += nav_twist; + } + if ( get_nav_from_flag() ) { + cur_radial += 180.0; + while ( cur_radial >= 360.0 ) { cur_radial -= 360.0; } + } + + // AUTOPILOT HELPERS + + // determine the target radial in "true" heading + nav_target_radial_true = nav_target_radial; + if ( nav_loc ) { + // ILS localizers radials are already "true" in our + // database + } else { + // VOR radials need to have that vor's offset added in + nav_target_radial_true += nav_twist; + } + + while ( nav_target_radial_true < 0.0 ) { + nav_target_radial_true += 360.0; + } + while ( nav_target_radial_true > 360.0 ) { + nav_target_radial_true -= 360.0; + } + + // determine the heading adjustment needed. + // over 8km scale by 3.0 + // (3 is chosen because max deflection is 10 + // and 30 is clamped angle to radial) + // under 8km scale by 10.0 + // because the overstated error helps drive it to the radial in a + // moderate cross wind. + double adjustment = 0.0; + if (nav_loc_dist > 8000) { + adjustment = get_nav_cdi_deflection() * 3.0; + } else { + adjustment = get_nav_cdi_deflection() * 10.0; + } + SG_CLAMP_RANGE( adjustment, -30.0, 30.0 ); + + // determine the target heading to fly to intercept the + // tgt_radial + nav_target_auto_hdg = nav_target_radial_true + adjustment; + while ( nav_target_auto_hdg < 0.0 ) { nav_target_auto_hdg += 360.0; } + while ( nav_target_auto_hdg > 360.0 ) { nav_target_auto_hdg -= 360.0; } + + // cross track error + // ???? + + // Calculate desired rate of climb for intercepting the GS + double x = nav_gs_dist; + double y = (alt_node->getDoubleValue() - nav_elev) + * SG_FEET_TO_METER; + double current_angle = atan2( y, x ) * SGD_RADIANS_TO_DEGREES; + + double target_angle = nav_target_gs; + double gs_diff = target_angle - current_angle; + + // convert desired vertical path angle into a climb rate + double des_angle = current_angle - 10 * gs_diff; + + // estimate horizontal speed towards ILS in meters per minute + double dist = last_x - x; + last_x = x; + if ( dt > 0.0 ) { + // avoid nan + double new_vel = ( dist / dt ); + + horiz_vel = 0.75 * horiz_vel + 0.25 * new_vel; + // double horiz_vel = cur_fdm_state->get_V_ground_speed() + // * SG_FEET_TO_METER * 60.0; + // double horiz_vel = airspeed_node->getFloatValue() + // * SG_FEET_TO_METER * 60.0; + + nav_gs_rate_of_climb = -sin( des_angle * SGD_DEGREES_TO_RADIANS ) + * horiz_vel * SG_METER_TO_FEET; + } + } else { + nav_inrange = false; + // cout << "not picking up vor. :-(" << endl; + } + + 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 ) + { + SGSoundSample *sound; + sound = globals->get_soundmgr()->find( nav_fx_name ); + if ( sound != NULL ) { + sound->set_volume( nav_vol_btn ); + } else { + SG_LOG( SG_COCKPIT, SG_ALERT, + "Can't find nav-vor-ident sound" ); + } + sound = globals->get_soundmgr()->find( dme_fx_name ); + if ( sound != NULL ) { + sound->set_volume( nav_vol_btn ); + } else { + SG_LOG( SG_COCKPIT, SG_ALERT, + "Can't find nav-dme-ident sound" ); + } + // cout << "nav_last_time = " << nav_last_time << " "; + // cout << "cur_time = " + // << globals->get_time_params()->get_cur_time(); + if ( nav_last_time < + globals->get_time_params()->get_cur_time() - 30 ) { + nav_last_time = globals->get_time_params()->get_cur_time(); + nav_play_count = 0; + } + // cout << " nav_play_count = " << nav_play_count << endl; + // cout << "playing = " + // << globals->get_soundmgr()->is_playing(nav_fx_name) + // << endl; + if ( nav_play_count < 4 ) { + // play VOR ident + if ( !globals->get_soundmgr()->is_playing(nav_fx_name) ) { + globals->get_soundmgr()->play_once( nav_fx_name ); + ++nav_play_count; + } + } else if ( nav_play_count < 5 && nav_has_dme ) { + // play DME ident + if ( !globals->get_soundmgr()->is_playing(nav_fx_name) && + !globals->get_soundmgr()->is_playing(dme_fx_name) ) { + globals->get_soundmgr()->play_once( dme_fx_name ); + ++nav_play_count; + } + } + } else { + globals->get_soundmgr()->stop( nav_fx_name ); + globals->get_soundmgr()->stop( dme_fx_name ); + } + } +} + + +// Update current nav/adf radio stations based on current postition +void FGNavRadio::search() +{ + + // reset search time + _time_before_search_sec = 1.0; + + double lon = lon_node->getDoubleValue() * SGD_DEGREES_TO_RADIANS; + double lat = lat_node->getDoubleValue() * SGD_DEGREES_TO_RADIANS; + double elev = alt_node->getDoubleValue() * SG_FEET_TO_METER; + + FGNavRecord *nav = NULL; + FGNavRecord *loc = NULL; + FGNavRecord *dme = NULL; + FGNavRecord *gs = NULL; + + //////////////////////////////////////////////////////////////////////// + // Nav. + //////////////////////////////////////////////////////////////////////// + + nav = globals->get_navlist()->findByFreq(nav_freq, lon, lat, elev); + dme = globals->get_dmelist()->findByFreq(nav_freq, lon, lat, elev); + if ( nav == NULL ) { + loc = globals->get_loclist()->findByFreq(nav_freq, lon, lat, elev); + gs = globals->get_gslist()->findByFreq(nav_freq, lon, lat, elev); + } + + if ( loc != NULL ) { + nav_id = loc->get_ident(); + // cout << "localizer = " << nav_id << endl; + nav_valid = true; + if ( last_nav_id != nav_id || last_nav_vor ) { + nav_trans_ident = loc->get_trans_ident(); + nav_target_radial = loc->get_multiuse(); + while ( nav_target_radial < 0.0 ) { nav_target_radial += 360.0; } + while ( nav_target_radial > 360.0 ) { nav_target_radial -= 360.0; } + nav_loclon = loc->get_lon(); + nav_loclat = loc->get_lat(); + nav_x = loc->get_x(); + nav_y = loc->get_y(); + nav_z = loc->get_z(); + last_nav_id = nav_id; + last_nav_vor = false; + nav_loc = true; + nav_has_dme = (dme != NULL); + nav_has_gs = (gs != NULL); + if ( nav_has_gs ) { + nav_gslon = gs->get_lon(); + nav_gslat = gs->get_lat(); + nav_elev = gs->get_elev_ft(); + int tmp = (int)(gs->get_multiuse() / 1000.0); + nav_target_gs = (double)tmp / 100.0; + nav_gs_x = gs->get_x(); + nav_gs_y = gs->get_y(); + nav_gs_z = gs->get_z(); + + // derive GS baseline (perpendicular to the runay + // along the ground) + 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_target_radial = " << nav_target_radial << endl; + // cout << "nav_loc = " << nav_loc << endl; + // 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; + } else { + nav_elev = loc->get_elev_ft(); + } + nav_twist = 0; + nav_range = FG_LOC_DEFAULT_RANGE; + nav_effective_range = nav_range; + + if ( globals->get_soundmgr()->exists( nav_fx_name ) ) { + globals->get_soundmgr()->remove( nav_fx_name ); + } + SGSoundSample *sound; + sound = morse.make_ident( nav_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 ); + } + sound = morse.make_ident( nav_trans_ident, HI_FREQUENCY ); + sound->set_volume( 0.3 ); + globals->get_soundmgr()->add( sound, dme_fx_name ); + + int offset = (int)(sg_random() * 30.0); + nav_play_count = offset / 4; + nav_last_time = globals->get_time_params()->get_cur_time() - + offset; + // cout << "offset = " << offset << " play_count = " + // << nav_play_count + // << " nav_last_time = " << nav_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(); + // cout << "nav = " << nav_id << endl; + nav_valid = true; + if ( last_nav_id != nav_id || !last_nav_vor ) { + last_nav_id = nav_id; + last_nav_vor = true; + nav_trans_ident = nav->get_trans_ident(); + nav_loc = false; + nav_has_dme = (dme != NULL); + nav_has_gs = false; + nav_loclon = nav->get_lon(); + nav_loclat = nav->get_lat(); + nav_elev = nav->get_elev_ft(); + nav_twist = nav->get_multiuse(); + nav_range = nav->get_range(); + nav_effective_range = adjustNavRange(nav_elev, elev, nav_range); + nav_target_gs = 0.0; + 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 ); + } + SGSoundSample *sound; + sound = morse.make_ident( nav_trans_ident, LO_FREQUENCY ); + sound->set_volume( 0.3 ); + 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"); + } + + if ( globals->get_soundmgr()->exists( dme_fx_name ) ) { + globals->get_soundmgr()->remove( dme_fx_name ); + } + sound = morse.make_ident( nav_trans_ident, HI_FREQUENCY ); + sound->set_volume( 0.3 ); + globals->get_soundmgr()->add( sound, dme_fx_name ); + + int offset = (int)(sg_random() * 30.0); + nav_play_count = offset / 4; + nav_last_time = globals->get_time_params()->get_cur_time() - + offset; + // cout << "offset = " << offset << " play_count = " + // << nav_play_count << " nav_last_time = " + // << nav_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; + } + } else { + nav_valid = false; + nav_id = ""; + nav_target_radial = 0; + nav_trans_ident = ""; + last_nav_id = ""; + if ( ! globals->get_soundmgr()->remove( nav_fx_name ) ) { + SG_LOG(SG_COCKPIT, SG_WARN, "Failed to remove nav-vor-ident sound"); + } + globals->get_soundmgr()->remove( dme_fx_name ); + // cout << "not picking up vor1. :-(" << endl; + } +} + + +// return the amount of heading needle deflection, returns a value +// clamped to the range of ( -10 , 10 ) +double FGNavRadio::get_nav_cdi_deflection() const { + double r; + + if ( nav_inrange + && nav_serviceable->getBoolValue() && cdi_serviceable->getBoolValue() ) + { + 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;} + if ( fabs(r) > 90.0 ) + 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; } + } else { + r = 0.0; + } + + return r; +} + +// return the amount of cross track distance error, returns a meters +double FGNavRadio::get_nav_cdi_xtrack_error() const { + double r, m; + + if ( nav_inrange + && nav_serviceable->getBoolValue() && cdi_serviceable->getBoolValue() ) + { + r = nav_radial - nav_target_radial; + // cout << "Target radial = " << nav_target_radial + // << " Actual radial = " << nav_radial + // << " r = " << r << endl; + + while ( r > 180.0 ) { r -= 360.0;} + while ( r < -180.0 ) { r += 360.0;} + if ( fabs(r) > 90.0 ) + r = ( r<0.0 ? -r-180.0 : -r+180.0 ); + + r = -r; // reverse, since radial is outbound + + m = nav_loc_dist * sin(r * SGD_DEGREES_TO_RADIANS); + + } else { + m = 0.0; + } + + return m; +} + +// return the amount of glide slope needle deflection (.i.e. the +// number of degrees we are off the glide slope * 5.0 +double FGNavRadio::get_nav_gs_deflection() const { + if ( nav_inrange && nav_has_gs + && nav_serviceable->getBoolValue() && gs_serviceable->getBoolValue() ) + { + double x = nav_gs_dist; + double y = (fgGetDouble("/position/altitude-ft") - nav_elev) + * SG_FEET_TO_METER; + // 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; + } +} + + +/** + * Return true if the NAV TO flag should be active. + */ +bool +FGNavRadio::get_nav_to_flag () const +{ + if ( nav_inrange + && nav_serviceable->getBoolValue() + && tofrom_serviceable->getBoolValue() ) + { + double offset = fabs(nav_radial - nav_target_radial); + if (nav_loc) { + return true; + } else { + return !(offset <= 90.0 || offset >= 270.0); + } + } else { + return false; + } +} + + +/** + * Return true if the NAV FROM flag should be active. + */ +bool +FGNavRadio::get_nav_from_flag () const +{ + if ( nav_inrange + && 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); + } + } else { + return false; + } +} + + +/** + * Return the true heading to station + */ +double +FGNavRadio::get_nav_heading () const +{ + return nav_heading; +} + + +/** + * Return the current radial. + */ +double +FGNavRadio::get_nav_radial () const +{ + return nav_radial; +} + +double +FGNavRadio::get_nav_reciprocal_radial () const +{ + double recip = nav_radial + 180; + if ( recip >= 360 ) { + recip -= 360; + } + return recip; +} diff --git a/src/Instrumentation/navradio.hxx b/src/Instrumentation/navradio.hxx new file mode 100644 index 000000000..24ca32a6d --- /dev/null +++ b/src/Instrumentation/navradio.hxx @@ -0,0 +1,223 @@ +// navradio.hxx -- class to manage a nav radio instance +// +// Written by Curtis Olson, started April 2000. +// +// Copyright (C) 2000 - 2002 Curtis L. Olson - http://www.flightgear.org/~curt +// +// 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. +// +// $Id$ + + +#ifndef _FG_NAVRADIO_HXX +#define _FG_NAVRADIO_HXX + + +#include
+ +#include +#include +#include +#include + +#include +#include + +class FGNavRadio : public SGSubsystem +{ + FGMorse morse; + + SGInterpTable *term_tbl; + SGInterpTable *low_tbl; + SGInterpTable *high_tbl; + + SGPropertyNode *lon_node; + SGPropertyNode *lat_node; + SGPropertyNode *alt_node; + SGPropertyNode *bus_power; + SGPropertyNode *nav_serviceable; + SGPropertyNode *cdi_serviceable, *gs_serviceable, *tofrom_serviceable; + + string last_nav_id; + bool last_nav_vor; + int nav_play_count; + time_t nav_last_time; + + int index; // used for property binding + char nav_fx_name[256]; + char dme_fx_name[256]; + + bool need_update; + + bool power_btn; + bool audio_btn; + + string nav_id; + string nav_trans_ident; + bool nav_valid; + bool nav_inrange; + bool nav_has_dme; + bool nav_has_gs; + bool nav_loc; + double nav_freq; + double nav_alt_freq; + double nav_heading; // true heading to nav station + double nav_radial; // current radial we are on (taking + // into consideration the vor station + // alignment which likely doesn't + // match the magnetic alignment + // exactly.) + double nav_sel_radial; + double nav_target_radial; + double nav_target_radial_true; + double nav_target_auto_hdg; + double nav_loclon; + double nav_loclat; + double nav_x; + double nav_y; + double nav_z; + double nav_loc_dist; + double nav_gslon; + double nav_gslat; + double nav_elev; // use gs elev if available + double nav_gs_x; + double nav_gs_y; + double nav_gs_z; + sgdVec3 gs_base_vec; + double nav_gs_dist; + double nav_gs_dist_signed; + double nav_gs_rate_of_climb; + SGTimeStamp prev_time; + SGTimeStamp curr_time; + double nav_range; + double nav_effective_range; + double nav_target_gs; + double nav_twist; + double nav_vol_btn; + bool nav_ident_btn; + double horiz_vel; + double last_x; + + string name; + int num; + + // internal periodic station search timer + double _time_before_search_sec; + + // model standard VOR/DME/TACAN service volumes as per AIM 1-1-8 + double adjustNavRange( double stationElev, double aircraftElev, + double nominalRange ); + + // model standard ILS service volumes as per AIM 1-1-9 + double adjustILSRange( double stationElev, double aircraftElev, + double offsetDegrees, double distance ); + +public: + + FGNavRadio(SGPropertyNode *node); + ~FGNavRadio(); + + void init (); + void bind (); + void unbind (); + void update (double dt); + + // Update nav/adf radios based on current postition + void search (); + + inline void set_bind_index( int i ) { + index = i; + sprintf( nav_fx_name, "nav%d-vor-ident", index ); + sprintf( dme_fx_name, "dme%d-vor-ident", index ); + } + + // NavCom Setters + inline void set_power_btn( bool val ) { power_btn = val; } + inline void set_audio_btn( bool val ) { audio_btn = val; } + + // NAV Setters + inline void set_nav_freq( double freq ) { + nav_freq = freq; need_update = true; + } + inline void set_nav_alt_freq( double freq ) { nav_alt_freq = freq; } + inline void set_nav_sel_radial( double radial ) { + nav_sel_radial = radial; need_update = true; + } + inline void set_nav_vol_btn( double val ) { + if ( val < 0.0 ) val = 0.0; + if ( val > 1.0 ) val = 1.0; + nav_vol_btn = val; + } + inline void set_nav_ident_btn( bool val ) { nav_ident_btn = val; } + + // NavCom Accessors + inline bool has_power() const { + return power_btn && (bus_power->getDoubleValue() > 1.0); + } + inline bool get_power_btn() const { return power_btn; } + inline bool get_audio_btn() const { return audio_btn; } + + // NAV Accessors + inline double get_nav_freq () const { return nav_freq; } + inline double get_nav_alt_freq () const { return nav_alt_freq; } + inline double get_nav_sel_radial() const { return nav_sel_radial; } + inline double get_nav_target_radial() const { return nav_target_radial; } + inline double get_nav_target_radial_true() const { + return nav_target_radial_true; + } + inline double get_nav_target_auto_hdg() const { + return nav_target_auto_hdg; + } + + // Calculated values. + inline bool get_nav_inrange() const { return nav_inrange; } + bool get_nav_to_flag () const; + bool get_nav_from_flag () const; + inline bool get_nav_has_dme() const { return nav_has_dme; } + inline bool get_nav_dme_inrange () const { + return nav_inrange && nav_has_dme; + } + inline bool get_nav_has_gs() const { return nav_has_gs; } + inline bool get_nav_loc() const { return nav_loc; } + inline double get_nav_loclon() const { return nav_loclon; } + inline double get_nav_loclat() const { return nav_loclat; } + inline double get_nav_loc_dist() const { return nav_loc_dist; } + inline double get_nav_gslon() const { return nav_gslon; } + inline double get_nav_gslat() const { return nav_gslat; } + inline double get_nav_gs_dist() const { return nav_gs_dist; } + inline double get_nav_gs_dist_signed() const { return nav_gs_dist_signed; } + inline double get_nav_gs_rate_of_climb() const { + return nav_gs_rate_of_climb; + } + inline double get_nav_elev() const { return nav_elev; } + double get_nav_heading() const; + double get_nav_radial() const; + double get_nav_reciprocal_radial() const; + inline double get_nav_target_gs() const { return nav_target_gs; } + inline double get_nav_twist() const { return nav_twist; } + double get_nav_cdi_deflection() const; + double get_nav_cdi_xtrack_error() const; + double get_nav_gs_deflection() const; + inline double get_nav_vol_btn() const { return nav_vol_btn; } + inline bool get_nav_ident_btn() const { return nav_ident_btn; } + inline const char * get_nav_id() const { return nav_id.c_str(); } + inline int get_nav_id_c1() const { return nav_id.c_str()[0]; } + inline int get_nav_id_c2() const { return nav_id.c_str()[1]; } + inline int get_nav_id_c3() const { return nav_id.c_str()[2]; } + inline int get_nav_id_c4() const { return nav_id.c_str()[3]; } +}; + + +#endif // _FG_NAVRADIO_HXX