]> git.mxchange.org Git - flightgear.git/blobdiff - src/Network/nmea.cxx
Merge branch 'next' of http://git.gitorious.org/fg/flightgear into next
[flightgear.git] / src / Network / nmea.cxx
index a8aaadc26bd74550db7a36a524a5f8ef52bf27f6..bbfd3fc0dc5b7ef1c07f481c6d251d115fb1b8b3 100644 (file)
@@ -2,7 +2,7 @@
 //
 // Written by Curtis Olson, started November 1999.
 //
-// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 1999  Curtis L. Olson - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as
 //
 // 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.
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 //
 // $Id$
 
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include <cstring>
 
 #include <simgear/debug/logstream.hxx>
 #include <simgear/math/sg_geodesy.hxx>
 #include <simgear/io/iochannel.hxx>
 #include <simgear/timing/sg_time.hxx>
 
-#include <FDM/flight.hxx>
+#include <FDM/flightProperties.hxx>
 #include <Main/fg_props.hxx>
 #include <Main/globals.hxx>
 
 #include "nmea.hxx"
 
-SG_USING_NAMESPACE(std);
-
-
 FGNMEA::FGNMEA() {
+  fdm = new FlightProperties();
 }
 
 FGNMEA::~FGNMEA() {
+  delete fdm;
 }
 
 
@@ -79,7 +83,7 @@ bool FGNMEA::gen_message() {
             t->getGmt()->tm_hour, t->getGmt()->tm_min, t->getGmt()->tm_sec );
 
     char gga_lat[20], rmc_lat[20];
-    double latd = cur_fdm_state->get_Latitude() * SGD_RADIANS_TO_DEGREES;
+    double latd = fdm->get_Latitude() * SGD_RADIANS_TO_DEGREES;
     if ( latd < 0.0 ) {
        latd = -latd;
        dir = 'S';
@@ -88,11 +92,11 @@ bool FGNMEA::gen_message() {
     }
     deg = (int)(latd);
     min = (latd - (double)deg) * 60.0;
-    sprintf( gga_lat, "%02d%06.3f,%c", abs(deg), min, dir);
+    sprintf( gga_lat, "%02d%07.4f,%c", abs(deg), min, dir);
     sprintf( rmc_lat, "%02d%07.4f,%c", abs(deg), min, dir);
 
     char gga_lon[20], rmc_lon[20];
-    double lond = cur_fdm_state->get_Longitude() * SGD_RADIANS_TO_DEGREES;
+    double lond = fdm->get_Longitude() * SGD_RADIANS_TO_DEGREES;
     if ( lond < 0.0 ) {
        lond = -lond;
        dir = 'W';
@@ -101,18 +105,27 @@ bool FGNMEA::gen_message() {
     }
     deg = (int)(lond);
     min = (lond - (double)deg) * 60.0;
-    sprintf( gga_lon, "%03d%06.3f,%c", abs(deg), min, dir);
+    sprintf( gga_lon, "%03d%07.4f,%c", abs(deg), min, dir);
     sprintf( rmc_lon, "%03d%07.4f,%c", abs(deg), min, dir);
 
+    double vn = fgGetDouble( "/velocities/speed-north-fps" );
+    double ve = fgGetDouble( "/velocities/speed-east-fps" );
+    double fps = sqrt( vn*vn + ve*ve );
+    double mps = fps * SG_FEET_TO_METER;
+    double kts = mps * SG_METER_TO_NM * 3600;
     char speed[10];
-    sprintf( speed, "%05.1f", cur_fdm_state->get_V_equiv_kts() );
+    sprintf( speed, "%.1f", kts );
 
+    double hdg_true = atan2( ve, vn ) * SGD_RADIANS_TO_DEGREES;
+    if ( hdg_true < 0 ) {
+      hdg_true += 360.0;
+    }
     char heading[10];
-    sprintf( heading, "%05.1f", cur_fdm_state->get_Psi() * SGD_RADIANS_TO_DEGREES );
+    sprintf( heading, "%.1f", hdg_true );
 
     char altitude_m[10];
-    sprintf( altitude_m, "%02d", 
-            (int)(cur_fdm_state->get_Altitude() * SG_FEET_TO_METER) );
+    sprintf( altitude_m, "%.1f", 
+            fdm->get_Altitude() * SG_FEET_TO_METER );
 
     char date[10];
     int year = t->getGmt()->tm_year;
@@ -128,14 +141,15 @@ bool FGNMEA::gen_message() {
     } else {
        dir = 'E';
     }
-    sprintf( magvar, "%05.1f,%c", magdeg, dir );
+    sprintf( magvar, "%.1f,%c", magdeg, dir );
  
-    // $GPRMC,HHMMSS,A,DDMM.MMMM,N,DDDMM.MMMM,W,XXX.X,XXX.X,DDMMYY,XXX.X,E*XX
-    sprintf( rmc, "GPRMC,%s,A,%s,%s,%s,%s,%s,%s",
+    // $GPRMC,HHMMSS,A,DDMM.MMMM,N,DDDMM.MMMM,W,XXX.X,XXX.X,DDMMYY,XXX.X,E,A*XX
+    sprintf( rmc, "GPRMC,%s,A,%s,%s,%s,%s,%s,%s,A",
             utc, rmc_lat, rmc_lon, speed, heading, date, magvar );
     sprintf( rmc_sum, "%02X", calc_nmea_cksum(rmc) );
 
-    sprintf( gga, "GPGGA,%s,%s,%s,1,08,0.9,%s,M, , ",
+    // $GPGGA,HHMMSS,DDMM.MMMM,N,DDDMM.MMMM,W,1,NN,H.H,AAAA.A,M,GG.G,M,,*XX
+    sprintf( gga, "GPGGA,%s,%s,%s,1,08,0.9,%s,M,0.0,M,,",
             utc, gga_lat, gga_lon, altitude_m );
     sprintf( gga_sum, "%02X", calc_nmea_cksum(gga) );
     sprintf( gsa, "%s",
@@ -152,20 +166,20 @@ bool FGNMEA::gen_message() {
     nmea_sentence += rmc;
     nmea_sentence += "*";
     nmea_sentence += rmc_sum;
-    nmea_sentence += "\r\n";
+    nmea_sentence += "\n";
 
     // GGA sentence
     nmea_sentence += "$";
     nmea_sentence += gga;
     nmea_sentence += "*";
     nmea_sentence += gga_sum;
-    nmea_sentence += "\r\n";
+    nmea_sentence += "\n";
 
     // GSA sentence (totally faked)
     nmea_sentence += gsa;
-    nmea_sentence += "\r\n";
+    nmea_sentence += "\n";
 
-//     cout << nmea_sentence;
+    // cout << nmea_sentence;
 
     length = nmea_sentence.length();
     strncpy( buf, nmea_sentence.c_str(), length );
@@ -262,7 +276,7 @@ bool FGNMEA::parse_message() {
                lat *= -1;
            }
 
-           cur_fdm_state->set_Latitude( lat * SGD_DEGREES_TO_RADIANS );
+           fdm->set_Latitude( lat * SGD_DEGREES_TO_RADIANS );
            SG_LOG( SG_IO, SG_INFO, "  lat = " << lat );
 
            // lon val
@@ -291,17 +305,17 @@ bool FGNMEA::parse_message() {
                lon *= -1;
            }
 
-           cur_fdm_state->set_Longitude( lon * SGD_DEGREES_TO_RADIANS );
+           fdm->set_Longitude( lon * SGD_DEGREES_TO_RADIANS );
            SG_LOG( SG_IO, SG_INFO, "  lon = " << lon );
 
 #if 0
            double sl_radius, lat_geoc;
-           sgGeodToGeoc( cur_fdm_state->get_Latitude(), 
-                         cur_fdm_state->get_Altitude(), 
+           sgGeodToGeoc( fdm->get_Latitude(), 
+                         fdm->get_Altitude(), 
                          &sl_radius, &lat_geoc );
-           cur_fdm_state->set_Geocentric_Position( lat_geoc, 
-                          cur_fdm_state->get_Longitude(), 
-                          sl_radius + cur_fdm_state->get_Altitude() );
+           fdm->set_Geocentric_Position( lat_geoc, 
+                          fdm->get_Longitude(), 
+                          sl_radius + fdm->get_Altitude() );
 #endif
 
            // speed
@@ -313,8 +327,8 @@ bool FGNMEA::parse_message() {
            string speed_str = msg.substr(begin, end - begin);
            begin = end + 1;
            speed = atof( speed_str.c_str() );
-           cur_fdm_state->set_V_calibrated_kts( speed );
-           // cur_fdm_state->set_V_ground_speed( speed );
+           fdm->set_V_calibrated_kts( speed );
+           // fdm->set_V_ground_speed( speed );
            SG_LOG( SG_IO, SG_INFO, "  speed = " << speed );
 
            // heading
@@ -326,8 +340,8 @@ bool FGNMEA::parse_message() {
            string hdg_str = msg.substr(begin, end - begin);
            begin = end + 1;
            heading = atof( hdg_str.c_str() );
-           cur_fdm_state->set_Euler_Angles( cur_fdm_state->get_Phi(), 
-                                            cur_fdm_state->get_Theta(), 
+           fdm->set_Euler_Angles( fdm->get_Phi(), 
+                                            fdm->get_Theta(), 
                                             heading * SGD_DEGREES_TO_RADIANS );
            SG_LOG( SG_IO, SG_INFO, "  heading = " << heading );
        } else if ( sentence == "GPGGA" ) {
@@ -367,7 +381,7 @@ bool FGNMEA::parse_message() {
                lat *= -1;
            }
 
-           // cur_fdm_state->set_Latitude( lat * SGD_DEGREES_TO_RADIANS );
+           // fdm->set_Latitude( lat * SGD_DEGREES_TO_RADIANS );
            SG_LOG( SG_IO, SG_INFO, "  lat = " << lat );
 
            // lon val
@@ -396,7 +410,7 @@ bool FGNMEA::parse_message() {
                lon *= -1;
            }
 
-           // cur_fdm_state->set_Longitude( lon * SGD_DEGREES_TO_RADIANS );
+           // fdm->set_Longitude( lon * SGD_DEGREES_TO_RADIANS );
            SG_LOG( SG_IO, SG_INFO, "  lon = " << lon );
 
            // junk
@@ -452,7 +466,7 @@ bool FGNMEA::parse_message() {
                altitude *= SG_METER_TO_FEET;
            }
 
-           cur_fdm_state->set_Altitude( altitude );
+           fdm->set_Altitude( altitude );
     
            SG_LOG( SG_IO, SG_INFO, " altitude  = " << altitude );