| 1 | #include "nmea0183.h"
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| 2 | #pragma hdrstop
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| 3 |
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| 4 | /*
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| 5 | ** Author: Samuel R. Blackburn
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| 6 | ** Internet: sam_blackburn@pobox.com
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| 7 | **
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| 8 | ** You can use it any way you like as long as you don't try to sell it.
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| 9 | **
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| 10 | ** Copyright, 1996, Samuel R. Blackburn
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| 11 | **
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| 12 | ** $Workfile: bec.cpp $
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| 13 | ** $Revision: 5 $
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| 14 | ** $Modtime: 10/10/98 2:45p $
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| 15 | */
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| 16 |
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| 17 |
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| 18 | BEC::BEC()
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| 19 | {
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| 20 | Mnemonic = "BEC";
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| 21 | Empty();
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| 22 | }
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| 23 |
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| 24 | BEC::~BEC()
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| 25 | {
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| 26 | //Mnemonic.Empty();
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| 27 | Empty();
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| 28 | }
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| 29 |
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| 30 | void BEC::Empty( void )
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| 31 | {
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| 32 | //UTCTime.Empty();
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| 33 | BearingTrue = 0.0;
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| 34 | BearingMagnetic = 0.0;
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| 35 | DistanceNauticalMiles = 0.0;
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| 36 | //To.Empty();
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| 37 | }
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| 38 |
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| 39 | BOOL BEC::Parse( const SENTENCE& sentence )
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| 40 | {
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| 41 | /*
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| 42 | ** BEC - Bearing & Distance to Waypoint - Dead Reckoning
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| 43 | ** 12
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| 44 | ** 1 2 3 4 5 6 7 8 9 10 11| 13
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| 45 | ** | | | | | | | | | | | | |
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| 46 | ** $--BEC,hhmmss.ss,llll.ll,a,yyyyy.yy,a,x.x,T,x.x,M,x.x,N,c--c*hh<CR><LF>
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| 47 | */
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| 48 |
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| 49 | /*
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| 50 | ** First we check the checksum...
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| 51 | */
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| 52 |
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| 53 | if ( sentence.IsChecksumBad( 13 ) == True )
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| 54 | {
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| 55 | SetErrorMessage( "Invalid Checksum" );
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| 56 | return( FALSE );
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| 57 | }
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| 58 |
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| 59 | UTCTime = sentence.Field( 1 );
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| 60 | Time = sentence.Time( 1 );
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| 61 | Position.Parse( 2, 3, 4, 5, sentence );
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| 62 | BearingTrue = sentence.Double( 6 );
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| 63 | BearingMagnetic = sentence.Double( 8 );
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| 64 | DistanceNauticalMiles = sentence.Double( 10 );
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| 65 | To = sentence.Field( 12 );
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| 66 |
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| 67 | return( TRUE );
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| 68 | }
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| 69 |
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| 70 | BOOL BEC::Write( SENTENCE& sentence )
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| 71 | {
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| 72 | /*
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| 73 | ** Let the parent do its thing
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| 74 | */
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| 75 |
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| 76 | RESPONSE::Write( sentence );
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| 77 |
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| 78 | sentence += UTCTime;
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| 79 | sentence += Position;
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| 80 | sentence += BearingTrue;
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| 81 | sentence += "T";
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| 82 | sentence += BearingMagnetic;
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| 83 | sentence += "M";
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| 84 | sentence += DistanceNauticalMiles;
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| 85 | sentence += "N";
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| 86 | sentence += To;
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| 87 |
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| 88 | sentence.Finish();
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| 89 |
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| 90 | return( TRUE );
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| 91 | }
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| 92 |
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| 93 | const BEC& BEC::operator = ( const BEC& source )
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| 94 | {
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| 95 | UTCTime = source.UTCTime;
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| 96 | Time = source.Time;
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| 97 | Position = source.Position;
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| 98 | BearingTrue = source.BearingTrue;
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| 99 | BearingMagnetic = source.BearingMagnetic;
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| 100 | DistanceNauticalMiles = source.DistanceNauticalMiles;
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| 101 | To = source.To;
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| 102 |
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| 103 | return( *this );
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| 104 | }
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