1 // atis.cxx - routines to generate the ATIS info string
2 // This is the implementation of the FGATIS class
4 // Written by David Luff, started October 2001.
6 // Copyright (C) 2001 David C Luff - david.luff@nottingham.ac.uk
8 // This program is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU General Public License as
10 // published by the Free Software Foundation; either version 2 of the
11 // License, or (at your option) any later version.
13 // This program is distributed in the hope that it will be useful, but
14 // WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the Free Software
20 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 #include <simgear/compiler.h>
29 #include <stdlib.h> // atoi()
30 #include <stdio.h> // sprintf
35 #if !defined(SG_HAVE_NATIVE_SGI_COMPILERS)
39 //#include <simgear/debug/logstream.hxx>
40 //#include <simgear/misc/sgstream.hxx>
41 #include <simgear/misc/sg_path.hxx>
43 //#ifndef FG_NEW_ENVIRONMENT
44 //sorry, that works only with the new weather system
45 #include <WeatherCM/FGLocalWeatherDatabase.h>
47 //# include <Environment/environment.hxx>
50 #include <Main/fg_props.hxx>
51 #include <Main/globals.hxx>
52 #include <Airports/runways.hxx>
55 #include "atislist.hxx"
56 #include "ATCdisplay.hxx"
58 string GetPhoneticIdent(int i) {
59 // TODO - Check i is between 1 and 26 and wrap if necessary
61 case 1 : return("Alpha");
62 case 2 : return("Bravo");
63 case 3 : return("Charlie");
64 case 4 : return("Delta");
65 case 5 : return("Echo");
66 case 6 : return("Foxtrot");
67 case 7 : return("Golf");
68 case 8 : return("Hotel");
69 case 9 : return("Indigo");
70 case 10 : return("Juliet");
71 case 11 : return("Kilo");
72 case 12 : return("Lima");
73 case 13 : return("Mike");
74 case 14 : return("November");
75 case 15 : return("Oscar");
76 case 16 : return("Papa");
77 case 17 : return("Quebec");
78 case 18 : return("Romeo");
79 case 19 : return("Sierra");
80 case 20 : return("Tango");
81 case 21 : return("Uniform");
82 case 22 : return("Victor");
83 case 23 : return("Whiskey");
84 case 24 : return("X-ray");
85 case 25 : return("Yankee");
86 case 26 : return("Zulu");
88 // We shouldn't get here
103 // Main update function - checks whether we are displaying or not the correct message.
104 void FGATIS::Update() {
107 // Check if we need to update the message
108 // - basically every hour and if the weather changes significantly at the station
109 //globals->get_ATC_display()->ChangeRepeatingMessage(transmission);
111 // We need to get and display the message
112 UpdateTransmission();
113 globals->get_ATC_display()->RegisterRepeatingMessage(transmission);
117 // We shouldn't be displaying
119 globals->get_ATC_display()->CancelRepeatingMessage();
125 // Sets the actual broadcast ATIS transmission.
126 void FGATIS::UpdateTransmission() {
127 #if !defined(FG_NEW_ENVIRONMENT)
131 string phonetic_id_string;
132 string time_str = fgGetString("sim/time/gmt-string");
135 sgVec3 position = { lat, lon, elev };
136 FGPhysicalProperty stationweather = WeatherDatabase->get(position);
140 // Start with the transmitted station name.
141 transmission += name;
143 transmission += " Information";
145 //cout << "In atis.cxx, time_str = " << time_str << '\n';
146 // Add the recording identifier
147 // For now we will assume we only transmit every hour
148 hours = atoi((time_str.substr(1,2)).c_str()); //Warning - this is fragile if the
149 //time string format changes
150 //cout << "In atis.cxx, hours = " << hours << endl;
151 phonetic_id = current_atislist->GetCallSign(ident, hours, 0);
152 phonetic_id_string = GetPhoneticIdent(phonetic_id);
154 transmission += phonetic_id_string;
156 // Output the recording time. - we'll just output the last whole hour for now.
157 // FIXME - this only gets GMT time but that appears to be all the clock outputs for now
158 //cout << "in atis.cxx, time = " << time_str << endl;
159 transmission = transmission + " Weather " + time_str.substr(0,3) + "00 hours Zulu";
161 // Get the temperature
162 // (Hardwire it for now since the global property returns the temperature at the current altitude
163 //temperature = fgGetDouble("/environment/weather/temperature-K");
164 sprintf(buf, "%i", int(stationweather.Temperature - 273.15));
165 transmission += " Temperature ";
167 transmission += " degrees Celsius";
169 // Get the pressure / altimeter
170 // pressure is: stationweather.AirPressure in Pascal
172 // Get the visibility
173 visibility = fgGetDouble("/environment/visibility-m");
174 sprintf(buf, "%i", int(visibility/1600));
175 transmission += " Visibility ";
177 transmission += " miles";
180 if(fgGetBool("/environment/clouds/status")) {
181 double cloudbase = fgGetDouble("/environment/clouds/altitude-ft");
182 // For some reason the altitude returned doesn't seem to correspond to the actual cloud altitude.
184 // cout << "cloudbase = " << cloudbase << endl;
185 sprintf(buf3, "%i", int(cloudbase));
186 transmission = transmission + " Cloudbase " + buf3 + " feet";
189 // Based on the airport-id and wind get the active runway
191 SGPath path( globals->get_fg_root() );
192 path.append( "Airports" );
193 path.append( "runways.mk4" );
194 FGRunways runways( path.c_str() );
196 //Set the heading to into the wind
197 double wind_x = stationweather.Wind[0];
198 double wind_y = stationweather.Wind[1];
200 double speed = sqrt( wind_x*wind_x + wind_y*wind_y ) * SG_METER_TO_NM / (60.0*60.0);
203 //If no wind use 270degrees
206 transmission += " Winds light and variable";
208 // //normalize the wind to get the direction
209 //wind_x /= speed; wind_y /= speed;
211 hdg = - atan2 ( wind_x, wind_y ) * SG_RADIANS_TO_DEGREES ;
215 //add a description of the wind to the transmission
217 sprintf(buf2, "%s %i %s %i %s", " Winds ", int(speed), " knots from ", int(hdg), " degrees");
218 transmission += buf2;
221 string rwy_no = runways.search(ident, int(hdg));
222 if(rwy_no != (string)"NN") {
223 transmission += " Landing and departing runway ";
224 transmission += rwy_no;
225 //cout << "in atis.cxx, r.rwy_no = " << rwy_no << " r.id = " << r->id << " r.heading = " << r->heading << endl;
230 transmission += " Advise controller on initial contact you have ";
231 transmission += phonetic_id_string;
234 transmission = "Station unavailable (not supported by FG_NEW_ENVIRONMENT)";
235 //return "Station unavailable (not supported by FG_NEW_ENVIRONMENT)";
236 #endif // FG_NEW_ENVIRONMENT