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>
44 # include <WeatherCM/FGLocalWeatherDatabase.h>
46 # include <Environment/environment_mgr.hxx>
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"
57 #include "ATCutils.hxx"
64 x(0.0), y(0.0), z(0.0),
81 // Main update function - checks whether we are displaying or not the correct message.
82 void FGATIS::Update() {
85 // Check if we need to update the message
86 // - basically every hour and if the weather changes significantly at the station
87 //globals->get_ATC_display()->ChangeRepeatingMessage(transmission);
89 // We need to get and display the message
91 globals->get_ATC_display()->RegisterRepeatingMessage(transmission);
95 // We shouldn't be displaying
97 globals->get_ATC_display()->CancelRepeatingMessage();
103 // Sets the actual broadcast ATIS transmission.
104 void FGATIS::UpdateTransmission() {
108 string phonetic_id_string;
109 string time_str = fgGetString("sim/time/gmt-string");
114 sgVec3 position = { lat, lon, elev };
115 FGPhysicalProperty stationweather = WeatherDatabase->get(position);
117 FGEnvironment stationweather =
118 globals->get_environment_mgr()->getEnvironment(lat, lon, elev);
123 // Start with the transmitted station name.
124 transmission += name;
126 transmission += " Information";
128 //cout << "In atis.cxx, time_str = " << time_str << '\n';
129 // Add the recording identifier
130 // For now we will assume we only transmit every hour
131 hours = atoi((time_str.substr(1,2)).c_str()); //Warning - this is fragile if the
132 //time string format changes
133 //cout << "In atis.cxx, hours = " << hours << endl;
134 phonetic_id = current_atislist->GetCallSign(ident, hours, 0);
135 phonetic_id_string = GetPhoneticIdent(phonetic_id);
137 transmission += phonetic_id_string;
139 // Output the recording time. - we'll just output the last whole hour for now.
140 // FIXME - this only gets GMT time but that appears to be all the clock outputs for now
141 //cout << "in atis.cxx, time = " << time_str << endl;
142 transmission = transmission + " Weather " + time_str.substr(0,3) + "00 hours Zulu";
144 // Get the temperature
145 // (Hardwire it for now since the global property returns the temperature at the current altitude
146 //temperature = fgGetDouble("/environment/weather/temperature-K");
148 sprintf(buf, "%i", int(stationweather.Temperature - 273.15));
150 sprintf(buf, "%d", int(stationweather.get_temperature_degc()));
152 transmission += " Temperature ";
154 transmission += " degrees Celsius";
156 // Get the visibility
158 visibility = fgGetDouble("/environment/visibility-m");
160 visibility = stationweather.get_visibility_m();
162 sprintf(buf, "%i", int(visibility/1600));
163 transmission += " Visibility ";
165 transmission += " miles";
168 // FIXME: kludge for now
169 if (strcmp(fgGetString("/environment/clouds/layer[0]/type"), "clear")) {
171 fgGetDouble("/environment/clouds/layer[0]/elevation-ft");
172 // For some reason the altitude returned doesn't seem to correspond to the actual cloud altitude.
174 // cout << "cloudbase = " << cloudbase << endl;
175 sprintf(buf3, "%i", int(cloudbase));
176 transmission = transmission + " Cloudbase " + buf3 + " feet";
179 // Get the pressure / altimeter
182 double altimeter = stationweather.get_pressure_sea_level_inhg();
183 sprintf(buf, "%.2f", altimeter);
184 transmission += " Altimeter ";
188 // Based on the airport-id and wind get the active runway
190 SGPath path( globals->get_fg_root() );
191 path.append( "Airports" );
192 path.append( "runways.mk4" );
193 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 double speed = stationweather.get_wind_speed_kt();
222 double hdg = stationweather.get_wind_from_heading_deg();
224 transmission += " Winds light and variable";
226 // FIXME: get gust factor in somehow
228 sprintf(buf2, "%s %i %s %i %s", " Winds ", int(speed),
229 " knots from ", int(hdg), " degrees");
230 transmission += buf2;
234 string rwy_no = runways.search(ident, int(hdg));
235 if(rwy_no != (string)"NN") {
236 transmission += " Landing and departing runway ";
237 transmission += rwy_no;
238 //cout << "in atis.cxx, r.rwy_no = " << rwy_no << " r.id = " << r->id << " r.heading = " << r->heading << endl;
243 transmission += " Advise controller on initial contact you have ";
244 transmission += phonetic_id_string;