Example #1
0
BOOL HSC::Parse( const SENTENCE& sentence )
{
   ASSERT_VALID( this );

   /*
   ** HSC - Heading Steering Command
   **
   **        1   2 3   4  5
   **        |   | |   |  |
   ** $--HSC,x.x,T,x.x,M,*hh<CR><LF>
   **
   ** Field Number: 
   **  1) Heading Degrees, True
   **  2) T = True
   **  3) Heading Degrees, Magnetic
   **  4) M = Magnetic
   **  5) Checksum
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 5 ) == True )
   {
      SetErrorMessage( "Invalid Checksum" );
      return( FALSE );
   } 

   DegreesTrue     = sentence.Double( 1 );
   DegreesMagnetic = sentence.Double( 3 );

   return( TRUE );
}
Example #2
0
BOOL ZTG::Parse( const SENTENCE& sentence )
{
   ASSERT_VALID( this );

   /*
   ** ZTG - UTC & Time to Destination Waypoint
   **
   **        1         2         3    4
   **        |         |         |    |
   ** $--ZTG,hhmmss.ss,hhmmss.ss,c--c*hh<CR><LF>
   **
   ** Fields:
   **  1) Universal Time Coordinated (UTC)
   **  2) Time Remaining
   **  3) Destination Waypoint ID
   **  4) Checksum
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 4 ) == True )
   {
      SetErrorMessage( "Invalid Checksum" );
      return( FALSE );
   } 

   UTCTime       = sentence.Field( 1 );
   TimeRemaining = sentence.Field( 2 );
   To            = sentence.Field( 3 );

   return( TRUE );
}
Example #3
0
bool HDM::Parse( const SENTENCE& sentence )
{
   /*
   ** HDM - Heading - Deviation & Variation
   **
   **        1   2 3
   **        |   | |
   ** $--HDM,x.x,M*hh<CR><LF>
   **
   ** Field Number: 
   **  1) Heading in degrees
   **  2) M, Magnetic Deviation
   **  3) Checksum
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 3 ) == True )
   {
      SetErrorMessage( "Invalid Checksum" );
      return( false );
   } 

   HeadingDegrees = sentence.Double( 1 );

   return( true );
}
Example #4
0
bool MTW::Parse( const SENTENCE& sentence )
{
//   ASSERT_VALID( this );

   /*
   ** MTW - Water Temperature
   **
   **        1   2 3
   **        |   | | 
   ** $--MTW,x.x,C*hh<CR><LF>
   **
   ** Field Number: 
   **  1) Degrees
   **  2) Unit of Measurement, Celcius
   **  3) Checksum
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 3 ) == TRUE )
   {
      SetErrorMessage( _T("Invalid Checksum") );
      return( FALSE );
   } 

   Temperature       = sentence.Double( 1 );
   UnitOfMeasurement = sentence.Field( 2 );

   return( TRUE );
}
Example #5
0
bool WDR::Parse( const SENTENCE& sentence )
{
   /*
   ** WDR - Distance to Waypoint, Rhumb Line
   **
   **        1   2 3    4
   **        |   | |    |
   ** $--WDR,x.x,N,c--c*hh<CR><LF>
   **
   ** 1) Distance to waypoint
   ** 2) N = Nautical Miles
   ** 3) Waypoint ID (To)
   ** 4) Checksum
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 4 ) == True )
   {
      SetErrorMessage( "Invalid Checksum" );
      return( false );
   }

   NauticalMiles = sentence.Double( 1 );
   To            = sentence.Field( 3 );

   return( true );
}
Example #6
0
bool APB::Write( SENTENCE& sentence )
{
//   ASSERT_VALID( this );

   /*
   ** Let the parent do its thing
   */
   
   RESPONSE::Write( sentence );

   sentence += IsLoranBlinkOK;
   sentence += IsLoranCCycleLockOK;
   sentence.Add( CrossTrackErrorMagnitude, g_NMEAAPBPrecision);

   if(DirectionToSteer == Left)
       sentence += _T("L");
   else
       sentence += _T("R");
   
   sentence += CrossTrackUnits;
   sentence += IsArrivalCircleEntered;
   sentence += IsPerpendicular;
   sentence.Add( BearingOriginToDestination, g_NMEAAPBPrecision);
   sentence += BearingOriginToDestinationUnits;
   sentence += To;
   sentence.Add( BearingPresentPositionToDestination, g_NMEAAPBPrecision );
   sentence += BearingPresentPositionToDestinationUnits;
   sentence.Add( HeadingToSteer, g_NMEAAPBPrecision );
   sentence += HeadingToSteerUnits;

   sentence.Finish();

   return( TRUE );
}
Example #7
0
bool HDT::Parse( const SENTENCE& sentence )
{

   /*
   ** HDT - Heading - True
   **
   **        1   2 3
   **        |   | |
   ** $--HDT,x.x,T*hh<CR><LF>
   **
   ** Field Number:
   **  1) Heading Degrees, TRUE
   **  2) T = True
   **  3) Checksum
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 3 ) == TRUE )
   {
      SetErrorMessage( _T("Invalid Checksum") );
      return( FALSE );
   }

   DegreesTrue = sentence.Double( 1 );

   return( TRUE );
}
Example #8
0
BOOL STN::Parse( const SENTENCE& sentence )
{
   ASSERT_VALID( this );

   /*
   ** STN - Multiple Data ID
   **
   **        1   2
   **        |   |
   ** $--STN,x.x,*hh<CR><LF>
   **
   ** Field Number: 
   **  1) Talker ID Number
   **  2) Checksum
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 2 ) == True )
   {
      SetErrorMessage( "Invalid Checksum" );
      return( FALSE );
   } 

   TalkerIDNumber   = sentence.Integer( 1 );

   return( TRUE );
}
Example #9
0
bool VPW::Parse( const SENTENCE& sentence )
{
   /*
   ** VPW - Speed - Measured Parallel to Wind
   **
   **        1   2 3   4 5
   **        |   | |   | |
   ** $--VPW,x.x,N,x.x,M*hh<CR><LF>
   **
   ** Field Number: 
   **  1) Speed, "-" means downwind
   **  2) N = Knots
   **  3) Speed, "-" means downwind
   **  4) M = Meters per second
   **  5) Checksum
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 5 ) == True )
   {
      SetErrorMessage( "Invalid Checksum" );
      return( false );
   } 

   Knots           = sentence.Double( 1 );
   MetersPerSecond = sentence.Double( 3 );

   return( true );
}
Example #10
0
bool DPT::Parse( const SENTENCE& sentence )
{
//   ASSERT_VALID( this );

   /*
   ** DPT - Heading - Deviation & Variation
   **
   **        1   2   3
   **        |   |   |
   ** $--DPT,x.x,x.x*hh<CR><LF>
   **
   ** Field Number: 
   **  1) Depth, meters
   **  2) Offset from transducer, 
   **     positive means distance from tansducer to water line
   **     negative means distance from transducer to keel
   **  3) Checksum
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 3 ) == TRUE )
   {
      SetErrorMessage( _T("Invalid Checksum") );
      return( FALSE );
   } 

   DepthMeters                = sentence.Double( 1 );
   OffsetFromTransducerMeters = sentence.Double( 2 );

   return( TRUE );
}
Example #11
0
bool VWE::Parse( const SENTENCE& sentence )
{
   /*
   ** VWE - Wind Track Efficiency
   **
   **        1   2
   **        |   |
   ** $--VWE,x.x,*hh<CR><LF>
   **
   ** Field Number: 
   **  1) Efficiency, Percent
   **  2) Checksum
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 2 ) == True )
   {
      SetErrorMessage( "Invalid Checksum" );
      return( false );
   } 

   EfficiencyPercent = sentence.Integer( 1 );

   return( true );
}
Example #12
0
bool GPWPL::Parse( const SENTENCE& sentence )
{

   /*
   ** WPL - Waypoint Location
   **
   **        +-------------------------------- 1) Latitude
   **        |       +------------------------ 2) N or S (North or South)
   **        |       | +---------------------- 3) Longitude
   **        |       | |        +------------- 4) E or W (East or West)
   **        |       | |        | +----------- 5) Waypoint name
   **        |       | |        | |    +-------6) Checksum
   **        |       | |        | |    |
   ** $--WPL,llll.ll,a,yyyyy.yy,a,c--c*hh<CR><LF>
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 6 ) == NTrue )
   {
      SetErrorMessage( _T("Invalid Checksum") );
      return( FALSE );
   }

   Position.Parse( 1, 2, 3, 4, sentence );
   To = sentence.Field( 5 );

   return( TRUE );
}
Example #13
0
bool HDM::Parse( const SENTENCE& sentence )
{

   /*
   ** HDM - Heading - Magnetic
   **
   **        1   2 3
   **        |   | |
   ** $--HDM,x.x,M*hh<CR><LF>
   **
   ** Field Number:
   **  1) Heading Degrees, Magnetic
   **  2) M = Magnetic
   **  3) Checksum
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 3 ) == TRUE )
   {
      SetErrorMessage( _T("Invalid Checksum") );
      return( FALSE );
   }

   DegreesMagnetic = sentence.Double( 1 );

   return( TRUE );
}
Example #14
0
bool GTD::Parse( const SENTENCE& sentence )
{
   /*
   ** GTD - Geographical Position, Loran-C TDs
   **
   **        1   2   3   4   5   6
   **        |   |   |   |   |   |
   ** $--GTD,x.x,x.x,x.x,x,x,x.x*hh<CR><LF>
   **
   **  1) Time Difference 1 Microseconds
   **  2) Time Difference 2 Microseconds
   **  3) Time Difference 3 Microseconds
   **  4) Time Difference 4 Microseconds
   **  5) Time Difference 5 Microseconds
   **  6) Checksum
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 6 ) == True )
   {
      SetErrorMessage( "Invalid Checksum" );
      return( false );
   } 

   TimeDifference1 = sentence.Field( 1 );
   TimeDifference2 = sentence.Field( 2 );
   TimeDifference3 = sentence.Field( 3 );
   TimeDifference4 = sentence.Field( 4 );
   TimeDifference5 = sentence.Field( 5 );

   return( true );
}
Example #15
0
bool TEP::Parse( const SENTENCE& sentence )
{
   /*
   ** TEP - TRANSIT Satellite Predicted Elevation
   **
   **        1   2 3
   **        |   | |
   ** $--TEP,x.x,T*hh<CR><LF>
   **
   ** Field Number: 
   **  1) Elevation degrees
   **  2) D = Degrees
   **  3) Checksum
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 3 ) == True )
   {
      SetErrorMessage( "Invalid Checksum" );
      return( false );
   } 

   ElevationDegrees = sentence.Double( 1 );

   return( true );
}
Example #16
0
bool ZZU::Parse( const SENTENCE& sentence )
{
   /*
   ** ZZU - Time UTC
   **
   **        1          2
   **        |          |  
   ** $--ZZU,hhmmss.ss,*hh<CR><LF>
   **
   ** 1) Universal Time Coordinated (UTC)
   ** 2) Checksum
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 2 ) == True )
   {
      SetErrorMessage( "Invalid Checksum" );
      return( false );
   }

   time_t temp_time = time(nullptr);

   struct tm * tm_p = gmtime(&temp_time);

   int year = tm_p->tm_year + 1900;
   int month = tm_p->tm_mon;
   int day = tm_p->tm_mday;

   UTCTimeString = sentence.Field( 1 );

   char temp_number[ 3 ];

   temp_number[ 2 ] = 0x00;

   temp_number[ 0 ] = UTCTimeString[ 0 ];
   temp_number[ 1 ] = UTCTimeString[ 1 ];

   int hours = ::atoi( temp_number );

   temp_number[ 0 ] = UTCTimeString[ 2 ];
   temp_number[ 1 ] = UTCTimeString[ 3 ];

   int minutes = ::atoi( temp_number );

   temp_number[ 0 ] = UTCTimeString[ 4 ];
   temp_number[ 1 ] = UTCTimeString[ 5 ];

   int seconds = ::atoi( temp_number );

   UTCTime = ctime( year, month, day, hours, minutes, seconds );

   return( true );
}
Example #17
0
void LATITUDE::Parse( int position_field_number, int north_or_south_field_number, const SENTENCE& sentence )
{
   // Thanks go to Eric Parsonage ([email protected]) for finding a nasty
   // little bug that used to live here.

   double position = 0.0;

   position = sentence.Double( position_field_number );

   std::string north_or_south = sentence.Field( north_or_south_field_number );

   Set( position, north_or_south.c_str() );
}
Example #18
0
bool RMB::Parse( const SENTENCE& sentence )
{

   /*
   ** RMB - Recommended Minimum Navigation Information
   **                                                             14
   **        1 2   3 4    5    6       7 8        9 10  11  12  13|
   **        | |   | |    |    |       | |        | |   |   |   | |
   ** $--RMB,A,x.x,a,c--c,c--c,llll.ll,a,yyyyy.yy,a,x.x,x.x,x.x,A*hh<CR><LF>
   **
   ** Field Number:
   **  1) Status, V = Navigation receiver warning
   **  2) Cross Track error - nautical miles
   **  3) Direction to Steer, Left or Right
   **  4) TO Waypoint ID
   **  5) FROM Waypoint ID
   **  6) Destination Waypoint Latitude
   **  7) N or S
   **  8) Destination Waypoint Longitude
   **  9) E or W
   ** 10) Range to destination in nautical miles
   ** 11) Bearing to destination in degrees True
   ** 12) Destination closing velocity in knots
   ** 13) Arrival Status, A = Arrival Circle Entered
   ** 14) Checksum
   */

   /*
   ** First we check the checksum...
   */

   NMEA0183_BOOLEAN check = sentence.IsChecksumBad( 14 );

   if ( check == NTrue )
   {
       SetErrorMessage( _T("Invalid Checksum") );
      return( FALSE );
   }

/*
   if ( check == Unknown0183 )
   {
       SetErrorMessage( _T("Missing Checksum") );
      return( FALSE );
   }
*/

   IsDataValid                     = sentence.Boolean( 1 );
   CrossTrackError                 = sentence.Double( 2 );
   DirectionToSteer                = sentence.LeftOrRight( 3 );
   From                            = sentence.Field( 4 );
   To                              = sentence.Field( 5 );
   DestinationPosition.Parse( 6, 7, 8, 9, sentence );
   RangeToDestinationNauticalMiles = sentence.Double( 10 );
   BearingToDestinationDegreesTrue = sentence.Double( 11 );
   DestinationClosingVelocityKnots = sentence.Double( 12 );
   IsArrivalCircleEntered          = sentence.Boolean( 13 );

   return( TRUE );
}
Example #19
0
bool XTE::Parse( const SENTENCE& sentence )
{
//   ASSERT_VALID( this );

   wxString field_data;

   /*
   ** XTE - Autopilot Sentence
   **                      
   **        1 2 3   4 5 6 
   **        | | |   | | | 
   ** $--XTE,A,A,x.x,a,N*hh<CR><LF>
   **
   **  1) Status
   **     V = LORAN-C Blink or SNR warning
   **     V = general warning flag or other navigation systems when a reliable
   **         fix is not available
   **  2) Status
   **     V = Loran-C Cycle Lock warning flag
   **     A = OK or not used
   **  3) Cross Track Error Magnitude
   **  4) Direction to steer, L or R
   **  5) Cross Track Units, N = Nautical Miles
   **  6) Checksum
   */

   /*
   ** First we check the checksum...
   */

   NMEA0183_BOOLEAN check = sentence.IsChecksumBad( 15 );
   
   if ( check == NTrue )
   {
      SetErrorMessage( _T("Invalid Checksum") );
      return( FALSE );
   } 

   /*
   ** Line has already been checked for checksum validity
   */

   IsLoranBlinkOK                           = sentence.Boolean( 1 );
   IsLoranCCycleLockOK                      = sentence.Boolean( 2 );
   CrossTrackErrorDistance                  = sentence.Double( 3 );
   DirectionToSteer                         = sentence.LeftOrRight( 4 );
   CrossTrackUnits                          = sentence.Field( 5 );

   return( TRUE );
}
Example #20
0
bool RMC::Write( SENTENCE& sentence )
{
//   ASSERT_VALID( this );

   /*
   ** Let the parent do its thing
   */

   RESPONSE::Write( sentence );

   sentence += UTCTime;
   sentence += IsDataValid;
   sentence += Position;
   sentence += SpeedOverGroundKnots;
   sentence += TrackMadeGoodDegreesTrue;
   sentence += Date;

   if(MagneticVariation > 360.)
         sentence += _T(",,");
   else
   {
         sentence += MagneticVariation;
         sentence += MagneticVariationDirection;
   }

   sentence.Finish();

   return( TRUE );
}
Example #21
0
bool XTE::Write( SENTENCE& sentence )
{
//   ASSERT_VALID( this );

   /*
   ** Let the parent do its thing
   */
   
   RESPONSE::Write( sentence );

   sentence += IsLoranBlinkOK;
   sentence += IsLoranCCycleLockOK;
   sentence += CrossTrackErrorDistance;

   if(DirectionToSteer == Left)
       sentence += _T("L");
   else
       sentence += _T("R");
   
   sentence += CrossTrackUnits;

   sentence.Finish();

   return( TRUE );
}
Example #22
0
bool RMB::Write( SENTENCE& sentence )
{

   /*
   ** Let the parent do its thing
   */

   RESPONSE::Write( sentence );

   sentence += IsDataValid;
   sentence += CrossTrackError;
   if(DirectionToSteer == Left)
       sentence += _T("L");
   else
       sentence += _T("R");

   sentence += From;
   sentence += To;
   sentence += DestinationPosition;
   sentence += RangeToDestinationNauticalMiles;
   sentence += BearingToDestinationDegreesTrue;
   sentence += DestinationClosingVelocityKnots;
   sentence += IsArrivalCircleEntered;

   sentence.Finish();

//   NMEA0183_BOOLEAN check = sentence.IsChecksumBad( 14 );

   return( TRUE );
}
Example #23
0
bool GGA::Write( SENTENCE& sentence )
{
//   ASSERT_VALID( this );

   /*
   ** Let the parent do its thing
   */

   RESPONSE::Write( sentence );

   sentence += UTCTime;
   sentence += Position;
   sentence += GPSQuality;
   sentence += NumberOfSatellitesInUse;
   sentence += HorizontalDilutionOfPrecision;
   sentence += AntennaAltitudeMeters;
   sentence += _T("M");
   sentence += GeoidalSeparationMeters;
   sentence += _T("M");
   sentence += AgeOfDifferentialGPSDataSeconds;
   sentence += DifferentialReferenceStationID;

   sentence.Finish();

   return( TRUE );
}
Example #24
0
void SATELLITE_DATA::Parse( int first_field_number, const SENTENCE& sentence )
{
   SatelliteNumber    = sentence.Integer( first_field_number );
   ElevationDegrees   = sentence.Integer( first_field_number + 1 );
   AzimuthDegreesTrue = sentence.Integer( first_field_number + 2 );
   
   std::string field_data = sentence.Field( first_field_number + 3 );

   if ( field_data == "" )
   {
      SignalToNoiseRatio = (-1);
   }
   else
   {
      SignalToNoiseRatio = sentence.Integer( first_field_number + 3 );
   }
     
}
Example #25
0
bool MDA::Parse( const SENTENCE& sentence )
{
//   ASSERT_VALID( this );

/*Wind speed, meters/second
**Wind speed, knots
**Wind direction,
**degrees Magnetic
**Wind direction, degrees True
**$
**--
**MDA,x.x,I,x.x,B,x.x,C,x.x,C,x.x,x.x,x.x,C,x.x,T,x.x,M,x.x,N,x.x,M*hh<CR><LF>
**    |   |  |  |          Dew point, degrees C
**    |   |  |  |          Absolute humidity, percent
**    |   |  |  |          Relative humidity, percent
**    |   |  |  |        Water temperature, degrees C
**    |   |  |  |          Air temperature, degrees C
**    |   |  |----Barometric pressure, bars
**    |----- Barometric pressure, inches of mercur
*/


   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( sentence.GetNumberOfDataFields() ) == TRUE || FALSE ) //diferent vendors have different length of data message and not 24 field as in standard.
   {
      SetErrorMessage( _T("Invalid Checksum") );
      return( FALSE );
   }

Pressure       = sentence.Double( 3 );
UnitOfMeasurement = sentence.Field( 4 );

if(UnitOfMeasurement==wxT("B"))
{
   Pressure       = sentence.Double( 3 ); //from bar to Hecto pascal

}


   return( TRUE );
}
Example #26
0
bool IMA::Parse( const SENTENCE& sentence )
{
   /*
   ** IMA - Vessel Identification
   **                                                              11    13
   **        1            2       3       4 5        6 7   8 9   10|   12|
   **        |            |       |       | |        | |   | |   | |   | |
   ** $--IMA,aaaaaaaaaaaa,aaaxxxx,llll.ll,a,yyyyy.yy,a,x.x,T,x.x,M,x.x,N*hh<CR><LF>
   **
   **  1) Twelve character vessel name
   **  2) Radio Call Sign
   **  3) Latitude
   **  4) North/South
   **  5) Longitude
   **  6) East/West
   **  7) Heading, degrees true
   **  8) T = True
   **  9) Heading, degrees magnetic
   ** 10) M = Magnetic
   ** 11) Speed
   ** 12) N = Knots
   ** 13) Checksum
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 13 ) == True )
   {
      SetErrorMessage( "Invalid Checksum" );
      return( false );
   }

   VesselName             = sentence.Field( 1 );
   Callsign               = sentence.Field( 2 );
   Position.Parse( 3, 4, 5, 6, sentence );
   HeadingDegreesTrue     = sentence.Double( 7 );
   HeadingDegreesMagnetic = sentence.Double( 9 );
   SpeedKnots             = sentence.Double( 11 );

   return( true );
}
Example #27
0
bool TRF::Parse( const SENTENCE& sentence )
{
   /*
   ** TRF - TRANSIT Fix Data
   **                                                                    13
   **        1         2      3       4 5        6 7   8   9   10  11  12|
   **        |         |      |       | |        | |   |   |   |   |   | |
   ** $--TRF,hhmmss.ss,xxxxxx,llll.ll,a,yyyyy.yy,a,x.x,x.x,x.x,x.x,xxx,A*hh<CR><LF>
   **
   ** Field Number: 
   **  1) UTC Time
   **  2) Date, ddmmyy
   **  3) Latitude
   **  4) N or S
   **  5) Longitude
   **  6) E or W
   **  7) Elevation Angle
   **  8) Number of iterations
   **  9) Number of Doppler intervals
   ** 10) Update distance, nautical miles
   ** 11) Satellite ID
   ** 12) Data Validity
   ** 13) Checksum
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 13 ) == True )
   {
      SetErrorMessage( "Invalid Checksum" );
      return( false );
   } 

   UTCTime                     = sentence.Field( 1 );
   Time                        = sentence.Time( 1 );
   Date                        = sentence.Field( 2 );
   Position.Parse( 3, 4, 5, 6, sentence );
   ElevationAngle              = sentence.Double( 7 );
   NumberOfIterations          = sentence.Double( 8 );
   NumberOfDopplerIntervals    = sentence.Double( 9 );
   UpdateDistanceNauticalMiles = sentence.Double( 10 );
   SatelliteID                 = sentence.Integer( 11 );
   IsDataValid                 = sentence.Boolean( 12 );

   return( true );
}
Example #28
0
bool GSV::Write( SENTENCE& sentence )
{
   /*
   ** Let the parent do its thing
   */

   RESPONSE::Write( sentence );

   sentence.Finish();

   return( TRUE );
}
Example #29
0
bool VHW::Parse( const SENTENCE& sentence )
{
//   ASSERT_VALID( this );

   /*
   ** VHW - Water speed and heading
   **
   **        1   2 3   4 5   6 7   8 9
   **        |   | |   | |   | |   | |
   ** $--VHW,x.x,T,x.x,M,x.x,N,x.x,K*hh<CR><LF>
   **
   ** Field Number: 
   **  1) Degress True
   **  2) T = True
   **  3) Degrees Magnetic
   **  4) M = Magnetic
   **  5) Knots (speed of vessel relative to the water)
   **  6) N = Knots
   **  7) Kilometers (speed of vessel relative to the water)
   **  8) K = Kilometers
   **  9) Checksum
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 9 ) == TRUE )
   {
      SetErrorMessage( _T("Invalid Checksum") );
      return( FALSE );
   } 

   DegreesTrue       = sentence.Double( 1 );
   DegreesMagnetic   = sentence.Double( 3 );
   Knots             = sentence.Double( 5 );
   KilometersPerHour = sentence.Double( 7 );

   return( TRUE );
}
Example #30
0
bool BEC::Parse( const SENTENCE& sentence )
{
   /*
   ** BEC - Bearing & Distance to Waypoint - Dead Reckoning
   **                                                         12
   **        1         2       3 4        5 6   7 8   9 10  11|    13
   **        |         |       | |        | |   | |   | |   | |    |
   ** $--BEC,hhmmss.ss,llll.ll,a,yyyyy.yy,a,x.x,T,x.x,M,x.x,N,c--c*hh<CR><LF>
   */

   /*
   ** First we check the checksum...
   */

   if ( sentence.IsChecksumBad( 13 ) == True )
   {
      SetErrorMessage( "Invalid Checksum" );
      return( false );
   } 

   UTCTime               = sentence.Field( 1 );
   Time                  = sentence.Time( 1 );
   Position.Parse( 2, 3, 4, 5, sentence );
   BearingTrue           = sentence.Double( 6 );
   BearingMagnetic       = sentence.Double( 8 );
   DistanceNauticalMiles = sentence.Double( 10 );
   To                    = sentence.Field( 12 );

   return( true );
}