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"
65 vPtr = globals->get_ATC_mgr()->GetVoicePointer(ATIS);
66 voiceOK = (vPtr == NULL ? false : true);
72 // Main update function - checks whether we are displaying or not the correct message.
73 void FGATIS::Update(double dt) {
76 // Check if we need to update the message
77 // - basically every hour and if the weather changes significantly at the station
78 //globals->get_ATC_display()->ChangeRepeatingMessage(transmission);
80 // We need to get and display the message
82 //cout << "ATIS.CXX - calling ATCMgr to render transmission..." << endl;
83 Render(transmission, refname, true);
87 // We shouldn't be displaying
89 //cout << "ATIS.CXX - calling NoRender()..." << endl;
96 // Sets the actual broadcast ATIS transmission.
97 void FGATIS::UpdateTransmission() {
101 string phonetic_id_string;
102 string time_str = fgGetString("sim/time/gmt-string");
107 sgVec3 position = { lat, lon, elev };
108 FGPhysicalProperty stationweather = WeatherDatabase->get(position);
110 FGEnvironment stationweather =
111 ((FGEnvironmentMgr *)globals->get_subsystem("environment"))
112 ->getEnvironment(lat, lon, elev);
117 // UK CAA radiotelephony manual indicated ATIS transmissions start with "This is"
118 // Not sure about rest of the world though.
119 transmission += "This_is ";
120 // transmitted station name.
121 transmission += name;
123 transmission += " information";
125 //cout << "In atis.cxx, time_str = " << time_str << '\n';
126 // Add the recording identifier
127 // For now we will assume we only transmit every hour
128 hours = atoi((time_str.substr(1,2)).c_str()); //Warning - this is fragile if the
129 //time string format changes
130 //cout << "In atis.cxx, hours = " << hours << endl;
131 phonetic_id = current_commlist->GetCallSign(ident, hours, 0);
132 phonetic_id_string = GetPhoneticIdent(phonetic_id);
134 transmission += phonetic_id_string;
136 // Output the recording time. - we'll just output the last whole hour for now.
137 // FIXME - this only gets GMT time but that appears to be all the clock outputs for now
138 //cout << "in atis.cxx, time = " << time_str << endl;
139 transmission = transmission + " / Weather " + ConvertNumToSpokenDigits((time_str.substr(0,3) + "00")) + " hours zulu";
141 // Get the temperature
144 temp = int(stationweather.Temperature - 273.15);
146 temp = (int)stationweather.get_temperature_degc();
149 // HACK ALERT - at the moment the new environment subsystem returns bogus temperatures
150 // FIXME - take out this hack when this gets fixed upstream
151 if((temp < -50) || (temp > 60)) {
155 sprintf(buf, "%i", abs(temp));
156 transmission += " / Temperature ";
158 transmission += "minus ";
160 string tempstr1 = buf;
162 transmission += ConvertNumToSpokenDigits(tempstr1);
163 transmission += " degrees_Celsius";
165 // Get the visibility
167 visibility = fgGetDouble("/environment/visibility-m");
169 visibility = stationweather.get_visibility_m();
171 sprintf(buf, "%i", int(visibility/1600));
172 transmission += " / Visibility ";
174 transmission += ConvertNumToSpokenDigits(tempstr1);
175 transmission += " miles";
178 // FIXME: kludge for now
179 if (strcmp(fgGetString("/environment/clouds/layer[0]/type"), "clear")) {
181 fgGetDouble("/environment/clouds/layer[0]/elevation-ft");
182 // For some reason the altitude returned doesn't seem to correspond to the actual cloud altitude.
185 // cout << "cloudbase = " << cloudbase << endl;
186 sprintf(buf3, "%i", int(cloudbase)/1000);
187 sprintf(buf4, "%i", ((int)cloudbase % 1000)/100);
188 transmission += " / Cloudbase";
189 if(int(cloudbase)/1000) {
191 transmission = transmission + " " + ConvertNumToSpokenDigits(tempstr1) + " thousand";
193 if(((int)cloudbase % 1000)/100) {
195 transmission = transmission + " " + ConvertNumToSpokenDigits(tempstr1) + " hundred";
197 transmission += " feet";
200 // Get the pressure / altimeter
203 double altimeter = stationweather.get_pressure_sea_level_inhg();
204 sprintf(buf, "%.2f", altimeter);
205 transmission += " / Altimeter ";
207 transmission += ConvertNumToSpokenDigits(tempstr1);
210 // Based on the airport-id and wind get the active runway
214 //Set the heading to into the wind
215 double wind_x = stationweather.Wind[0];
216 double wind_y = stationweather.Wind[1];
218 double speed = sqrt( wind_x*wind_x + wind_y*wind_y ) * SG_METER_TO_NM / (60.0*60.0);
221 //If no wind use 270degrees
224 transmission += " / Winds_light_and_variable";
226 // //normalize the wind to get the direction
227 //wind_x /= speed; wind_y /= speed;
229 hdg = - atan2 ( wind_x, wind_y ) * SG_RADIANS_TO_DEGREES ;
233 //add a description of the wind to the transmission
236 sprintf(buf5, "%i", int(speed));
237 sprintf(buf6, "%i", int(hdg));
240 transmission = transmission + " / Winds " + ConvertNumToSpokenDigits(tempstr1) + " knots from "
241 + ConvertNumToSpokenDigits(tempstr2) + " degrees";
244 double speed = stationweather.get_wind_speed_kt();
245 double hdg = stationweather.get_wind_from_heading_deg();
247 hdg = 270; // This forces West-facing rwys to be used in no-wind situations
248 // which is consistent with Flightgear's initial setup.
249 transmission += " / Winds_light_and_variable";
251 // FIXME: get gust factor in somehow
254 sprintf(buf5, "%i", int(speed));
255 sprintf(buf6, "%i", int(hdg));
258 transmission = transmission + " / Winds " + ConvertNumToSpokenDigits(tempstr1) + " knots from "
259 + ConvertNumToSpokenDigits(tempstr2) + " degrees";
263 string rwy_no = globals->get_runways()->search(ident, int(hdg));
265 transmission += " / Landing_and_departing_runway ";
266 transmission += ConvertRwyNumToSpokenString(atoi(rwy_no.c_str()));
267 //cout << "in atis.cxx, r.rwy_no = " << rwy_no << " r.id = " << r->id << " r.heading = " << r->heading << endl;
272 transmission += " / Advise_controller_on_initial_contact_you_have ";
273 transmission += phonetic_id_string;
274 transmission += " /// ";