// atis.cxx - routines to generate the ATIS info string // This is the implementation of the FGATIS class // // Written by David Luff, started October 2001. // // Copyright (C) 2001 David C Luff - david.luff@nottingham.ac.uk // // 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. #ifdef HAVE_CONFIG_H # include #endif #include #include // atoi() #include // sprintf #include SG_USING_STD(string); #include STL_IOSTREAM #if !defined(SG_HAVE_NATIVE_SGI_COMPILERS) SG_USING_STD(cout); #endif //#include //#include #include #ifdef FG_WEATHERCM # include #else # include # include #endif #include
#include
#include #include "atis.hxx" #include "atislist.hxx" #include "ATCdisplay.hxx" string GetPhoneticIdent(int i) { // TODO - Check i is between 1 and 26 and wrap if necessary switch(i) { case 1 : return("Alpha"); case 2 : return("Bravo"); case 3 : return("Charlie"); case 4 : return("Delta"); case 5 : return("Echo"); case 6 : return("Foxtrot"); case 7 : return("Golf"); case 8 : return("Hotel"); case 9 : return("Indigo"); case 10 : return("Juliet"); case 11 : return("Kilo"); case 12 : return("Lima"); case 13 : return("Mike"); case 14 : return("November"); case 15 : return("Oscar"); case 16 : return("Papa"); case 17 : return("Quebec"); case 18 : return("Romeo"); case 19 : return("Sierra"); case 20 : return("Tango"); case 21 : return("Uniform"); case 22 : return("Victor"); case 23 : return("Whiskey"); case 24 : return("X-ray"); case 25 : return("Yankee"); case 26 : return("Zulu"); } // We shouldn't get here return("Error"); } // Constructor FGATIS::FGATIS() : type(0), lon(0.0), lat(0.0), elev(0.0), x(0.0), y(0.0), z(0.0), freq(0), range(0), display(false), displaying(false), ident(""), name(""), transmission(""), trans_ident(""), atis_failed(false) { } // Destructor FGATIS::~FGATIS() { } // Main update function - checks whether we are displaying or not the correct message. void FGATIS::Update() { if(display) { if(displaying) { // Check if we need to update the message // - basically every hour and if the weather changes significantly at the station //globals->get_ATC_display()->ChangeRepeatingMessage(transmission); } else { // We need to get and display the message UpdateTransmission(); globals->get_ATC_display()->RegisterRepeatingMessage(transmission); displaying = true; } } else { // We shouldn't be displaying if(displaying) { globals->get_ATC_display()->CancelRepeatingMessage(); displaying = false; } } } // Sets the actual broadcast ATIS transmission. void FGATIS::UpdateTransmission() { double visibility; char buf[10]; int phonetic_id; string phonetic_id_string; string time_str = fgGetString("sim/time/gmt-string"); int hours; // int minutes; #ifdef FG_WEATHERCM sgVec3 position = { lat, lon, elev }; FGPhysicalProperty stationweather = WeatherDatabase->get(position); #else FGEnvironment stationweather = globals->get_environment_mgr()->getEnvironment(lat, lon, elev); #endif transmission = ""; // Start with the transmitted station name. transmission += name; // Add "Information" transmission += " Information"; //cout << "In atis.cxx, time_str = " << time_str << '\n'; // Add the recording identifier // For now we will assume we only transmit every hour hours = atoi((time_str.substr(1,2)).c_str()); //Warning - this is fragile if the //time string format changes //cout << "In atis.cxx, hours = " << hours << endl; phonetic_id = current_atislist->GetCallSign(ident, hours, 0); phonetic_id_string = GetPhoneticIdent(phonetic_id); transmission += " "; transmission += phonetic_id_string; // Output the recording time. - we'll just output the last whole hour for now. // FIXME - this only gets GMT time but that appears to be all the clock outputs for now //cout << "in atis.cxx, time = " << time_str << endl; transmission = transmission + " Weather " + time_str.substr(0,3) + "00 hours Zulu"; // Get the temperature // (Hardwire it for now since the global property returns the temperature at the current altitude //temperature = fgGetDouble("/environment/weather/temperature-K"); #ifdef FG_WEATHERCM sprintf(buf, "%i", int(stationweather.Temperature - 273.15)); #else sprintf(buf, "%d", int(stationweather.get_temperature_degc())); #endif transmission += " Temperature "; transmission += buf; transmission += " degrees Celsius"; // Get the visibility #ifdef FG_WEATHERCM visibility = fgGetDouble("/environment/visibility-m"); #else visibility = stationweather.get_visibility_m(); #endif sprintf(buf, "%i", int(visibility/1600)); transmission += " Visibility "; transmission += buf; transmission += " miles"; // Get the cloudbase // FIXME: kludge for now if (strcmp(fgGetString("/environment/clouds/layer[0]/type"), "clear")) { double cloudbase = fgGetDouble("/environment/clouds/layer[0]/elevation-ft"); // For some reason the altitude returned doesn't seem to correspond to the actual cloud altitude. char buf3[10]; // cout << "cloudbase = " << cloudbase << endl; sprintf(buf3, "%i", int(cloudbase)); transmission = transmission + " Cloudbase " + buf3 + " feet"; } // Get the pressure / altimeter #ifndef FG_WEATHERCM double altimeter = stationweather.get_pressure_sea_level_inhg(); sprintf(buf, "%.2f", altimeter); transmission += " Altimeter "; transmission += buf; #endif // Based on the airport-id and wind get the active runway //FGRunway *r; SGPath path( globals->get_fg_root() ); path.append( "Airports" ); path.append( "runways.mk4" ); FGRunways runways( path.c_str() ); #ifdef FG_WEATHERCM //Set the heading to into the wind double wind_x = stationweather.Wind[0]; double wind_y = stationweather.Wind[1]; double speed = sqrt( wind_x*wind_x + wind_y*wind_y ) * SG_METER_TO_NM / (60.0*60.0); double hdg; //If no wind use 270degrees if(speed == 0) { hdg = 270; transmission += " Winds light and variable"; } else { // //normalize the wind to get the direction //wind_x /= speed; wind_y /= speed; hdg = - atan2 ( wind_x, wind_y ) * SG_RADIANS_TO_DEGREES ; if (hdg < 0.0) hdg += 360.0; //add a description of the wind to the transmission char buf2[72]; sprintf(buf2, "%s %i %s %i %s", " Winds ", int(speed), " knots from ", int(hdg), " degrees"); transmission += buf2; } #else double speed = stationweather.get_wind_speed_kt(); double hdg = stationweather.get_wind_from_heading_deg(); if (speed == 0) { transmission += " Winds light and variable"; } else { // FIXME: get gust factor in somehow char buf2[72]; sprintf(buf2, "%s %i %s %i %s", " Winds ", int(speed), " knots from ", int(hdg), " degrees"); transmission += buf2; } #endif string rwy_no = runways.search(ident, int(hdg)); if(rwy_no != (string)"NN") { transmission += " Landing and departing runway "; transmission += rwy_no; //cout << "in atis.cxx, r.rwy_no = " << rwy_no << " r.id = " << r->id << " r.heading = " << r->heading << endl; } // Anything else? transmission += " Advise controller on initial contact you have "; transmission += phonetic_id_string; }