// 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; // inputs SGPropertyNode *power_btn; SGPropertyNode *nav_freq; // primary freq SGPropertyNode *nav_alt_freq; // standby freq SGPropertyNode *nav_sel_radial; // selected radial SGPropertyNode *nav_vol_btn; SGPropertyNode *nav_ident_btn; SGPropertyNode *audio_btn; // outputs SGPropertyNode *fmt_freq; // formated frequency SGPropertyNode *fmt_alt_freq; // formated alternate frequency SGPropertyNode *nav_heading; // true heading to nav station SGPropertyNode *nav_radial; // current radial we are on (taking // into consideration the vor station // alignment which likely doesn't // match the magnetic alignment // exactly.) SGPropertyNode *reciprocal_radial; // nav_radial + 180 (convenience value) SGPropertyNode *nav_target_radial_true; // true heading of selected radial SGPropertyNode *nav_target_auto_hdg; SGPropertyNode *nav_to_flag; SGPropertyNode *nav_from_flag; SGPropertyNode *nav_inrange; SGPropertyNode *nav_cdi_deflection; SGPropertyNode *nav_cdi_xtrack_error; SGPropertyNode *nav_has_gs; SGPropertyNode *nav_loc; SGPropertyNode *nav_loc_dist; SGPropertyNode *nav_gs_deflection; SGPropertyNode *nav_gs_rate_of_climb; SGPropertyNode *nav_gs_dist; SGPropertyNode *nav_id; SGPropertyNode *nav_id_c1; SGPropertyNode *nav_id_c2; SGPropertyNode *nav_id_c3; SGPropertyNode *nav_id_c4; // unfiled SGPropertyNode *nav_serviceable; SGPropertyNode *cdi_serviceable, *gs_serviceable, *tofrom_serviceable; SGPropertyNode *nav_slaved_to_gps; SGPropertyNode *gps_cdi_deflection, *gps_to_flag, *gps_from_flag; 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; // internal (unexported) values string nav_trans_ident; bool nav_valid; bool nav_has_dme; double nav_target_radial; double nav_loclon; double nav_loclat; double nav_x; double nav_y; double nav_z; 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_signed; SGTimeStamp prev_time; SGTimeStamp curr_time; double nav_range; double nav_effective_range; double nav_target_gs; double nav_twist; 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 Accessors inline bool has_power() const { return power_btn->getBoolValue() && (bus_power->getDoubleValue() > 1.0); } // NAV Accessors inline double get_nav_target_radial() const { return nav_target_radial; } // Calculated values. bool get_nav_to_flag () const; inline bool get_nav_has_dme() const { return nav_has_dme; } inline bool get_nav_dme_inrange () const { return nav_inrange->getBoolValue() && nav_has_dme; } inline double get_nav_loclon() const { return nav_loclon; } inline double get_nav_loclat() const { return nav_loclat; } inline double get_nav_gslon() const { return nav_gslon; } inline double get_nav_gslat() const { return nav_gslat; } inline double get_nav_gs_dist_signed() const { return nav_gs_dist_signed; } inline double get_nav_elev() const { return nav_elev; } inline double get_nav_target_gs() const { return nav_target_gs; } inline double get_nav_twist() const { return nav_twist; } //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