// 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 string nav_fx_name; string dme_fx_name; 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