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
37 #include <simgear/misc/sg_path.hxx>
40 # include <WeatherCM/FGLocalWeatherDatabase.h>
42 # include <Environment/environment_mgr.hxx>
43 # include <Environment/environment.hxx>
46 #include <Main/fg_props.hxx>
47 #include <Main/globals.hxx>
48 #include <Airports/runways.hxx>
51 #include "commlist.hxx"
52 #include "ATCdisplay.hxx"
53 #include "ATCutils.hxx"
63 vPtr = globals->get_ATC_mgr()->GetVoicePointer(ATIS);
64 voiceOK = (vPtr == NULL ? false : true);
71 // Main update function - checks whether we are displaying or not the correct message.
72 void FGATIS::Update(double dt) {
75 // Check if we need to update the message
76 // - basically every hour and if the weather changes significantly at the station
77 //globals->get_ATC_display()->ChangeRepeatingMessage(transmission);
79 // We need to get and display the message
81 //cout << "ATIS.CXX - calling ATCMgr to render transmission..." << endl;
82 Render(transmission, refname, true);
86 // We shouldn't be displaying
88 //cout << "ATIS.CXX - calling NoRender()..." << endl;
95 // Sets the actual broadcast ATIS transmission.
96 void FGATIS::UpdateTransmission() {
100 string phonetic_id_string;
101 string time_str = fgGetString("sim/time/gmt-string");
106 sgVec3 position = { lat, lon, elev };
107 FGPhysicalProperty stationweather = WeatherDatabase->get(position);
109 FGEnvironment stationweather =
110 ((FGEnvironmentMgr *)globals->get_subsystem("environment"))
111 ->getEnvironment(lat, lon, elev);
116 // UK CAA radiotelephony manual indicated ATIS transmissions start with "This is"
117 // Not sure about rest of the world though.
118 transmission += "This_is ";
119 // transmitted station name.
120 transmission += name;
122 transmission += " information";
124 //cout << "In atis.cxx, time_str = " << time_str << '\n';
125 // Add the recording identifier
126 // For now we will assume we only transmit every hour
127 hours = atoi((time_str.substr(1,2)).c_str()); //Warning - this is fragile if the
128 //time string format changes
129 //cout << "In atis.cxx, hours = " << hours << endl;
130 phonetic_id = current_commlist->GetCallSign(ident, hours, 0);
131 phonetic_id_string = GetPhoneticIdent(phonetic_id);
133 transmission += phonetic_id_string;
135 // Output the recording time. - we'll just output the last whole hour for now.
136 // FIXME - this only gets GMT time but that appears to be all the clock outputs for now
137 //cout << "in atis.cxx, time = " << time_str << endl;
138 transmission = transmission + " / Weather " + ConvertNumToSpokenDigits((time_str.substr(0,3) + "00")) + " hours zulu";
140 // Get the temperature
143 temp = int(stationweather.Temperature - 273.15);
145 temp = (int)stationweather.get_temperature_degc();
148 // HACK ALERT - at the moment the new environment subsystem returns bogus temperatures
149 // FIXME - take out this hack when this gets fixed upstream
150 if((temp < -50) || (temp > 60)) {
154 sprintf(buf, "%i", abs(temp));
155 transmission += " / Temperature ";
157 transmission += "minus ";
159 string tempstr1 = buf;
161 transmission += ConvertNumToSpokenDigits(tempstr1);
162 transmission += " degrees_Celsius";
164 // Get the visibility
166 visibility = fgGetDouble("/environment/visibility-m");
168 visibility = stationweather.get_visibility_m();
170 sprintf(buf, "%i", int(visibility/1600));
171 transmission += " / Visibility ";
173 transmission += ConvertNumToSpokenDigits(tempstr1);
174 transmission += " miles";
177 // FIXME: kludge for now
178 if (strcmp(fgGetString("/environment/clouds/layer[0]/type"), "clear")) {
180 fgGetDouble("/environment/clouds/layer[0]/elevation-ft");
181 // 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)/1000);
186 sprintf(buf4, "%i", ((int)cloudbase % 1000)/100);
187 transmission += " / Cloudbase";
188 if(int(cloudbase)/1000) {
190 transmission = transmission + " " + ConvertNumToSpokenDigits(tempstr1) + " thousand";
192 if(((int)cloudbase % 1000)/100) {
194 transmission = transmission + " " + ConvertNumToSpokenDigits(tempstr1) + " hundred";
196 transmission += " feet";
199 // Get the pressure / altimeter
202 double altimeter = stationweather.get_pressure_sea_level_inhg();
203 sprintf(buf, "%.2f", altimeter);
204 transmission += " / Altimeter ";
206 transmission += ConvertNumToSpokenDigits(tempstr1);
209 // Based on the airport-id and wind get the active runway
213 //Set the heading to into the wind
214 double wind_x = stationweather.Wind[0];
215 double wind_y = stationweather.Wind[1];
217 double speed = sqrt( wind_x*wind_x + wind_y*wind_y ) * SG_METER_TO_NM / (60.0*60.0);
220 //If no wind use 270degrees
223 transmission += " / Winds_light_and_variable";
225 // //normalize the wind to get the direction
226 //wind_x /= speed; wind_y /= speed;
228 hdg = - atan2 ( wind_x, wind_y ) * SG_RADIANS_TO_DEGREES ;
232 //add a description of the wind to the transmission
235 sprintf(buf5, "%i", int(speed));
236 sprintf(buf6, "%i", int(hdg));
239 transmission = transmission + " / Winds " + ConvertNumToSpokenDigits(tempstr1) + " knots from "
240 + ConvertNumToSpokenDigits(tempstr2) + " degrees";
243 double speed = stationweather.get_wind_speed_kt();
244 double hdg = stationweather.get_wind_from_heading_deg();
246 hdg = 270; // This forces West-facing rwys to be used in no-wind situations
247 // which is consistent with Flightgear's initial setup.
248 transmission += " / Winds_light_and_variable";
250 // FIXME: get gust factor in somehow
253 sprintf(buf5, "%i", int(speed));
254 sprintf(buf6, "%i", int(hdg));
257 transmission = transmission + " / Winds " + ConvertNumToSpokenDigits(tempstr1) + " knots from "
258 + ConvertNumToSpokenDigits(tempstr2) + " degrees";
262 string rwy_no = globals->get_runways()->search(ident, int(hdg));
264 transmission += " / Landing_and_departing_runway ";
265 transmission += ConvertRwyNumToSpokenString(atoi(rwy_no.c_str()));
266 //cout << "in atis.cxx, r.rwy_no = " << rwy_no << " r.id = " << r->id << " r.heading = " << r->heading << endl;
271 transmission += " / Advise_controller_on_initial_contact_you_have ";
272 transmission += phonetic_id_string;
273 transmission += " /// ";