| 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: aam.cpp $
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| 13 | ** $Revision: 5 $
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| 14 | ** $Modtime: 10/10/98 2:40p $
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| 15 | */
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| 16 |
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| 17 |
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| 18 | AAM::AAM()
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| 19 | {
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| 20 | Mnemonic = "AAM";
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| 21 | Empty();
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| 22 | }
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| 23 |
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| 24 | AAM::~AAM()
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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 AAM::Empty( void )
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| 31 | {
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| 32 | IsArrivalCircleEntered = NMEA_Unknown;
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| 33 | IsPerpendicular = NMEA_Unknown;
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| 34 | CircleRadius = 0.0;
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| 35 | //WaypointID.Empty();
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| 36 | }
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| 37 |
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| 38 | BOOL AAM::Parse( const SENTENCE& sentence )
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| 39 | {
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| 40 | /*
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| 41 | ** AAM - Waypoint Arrival Alarm
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| 42 | **
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| 43 | ** 1 2 3 4 5 6
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| 44 | ** | | | | | |
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| 45 | ** $--AAM,A,A,x.x,N,c--c*hh<CR><LF>
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| 46 | **
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| 47 | ** 1) Status, A = Arrival circle entered
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| 48 | ** 2) Status, A = perpendicular passed at waypoint
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| 49 | ** 3) Arrival circle radius
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| 50 | ** 4) Units of radius, nautical miles
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| 51 | ** 5) Waypoint ID
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| 52 | ** 6) Checksum
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| 53 | */
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| 54 |
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| 55 | /*
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| 56 | ** First we check the checksum...
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| 57 | */
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| 58 |
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| 59 | if ( sentence.IsChecksumBad( 6 ) == True )
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| 60 | {
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| 61 | SetErrorMessage( "Invalid Checksum" );
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| 62 | return( FALSE );
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| 63 | }
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| 64 |
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| 65 | /*
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| 66 | ** Line has already been checked for checksum validity
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| 67 | */
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| 68 |
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| 69 | IsArrivalCircleEntered = sentence.Boolean( 1 );
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| 70 | IsPerpendicular = sentence.Boolean( 2 );
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| 71 | CircleRadius = sentence.Double( 3 );
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| 72 | WaypointID = sentence.Field( 5 );
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| 73 |
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| 74 | return( TRUE );
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| 75 | }
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| 76 |
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| 77 | BOOL AAM::Write( SENTENCE& sentence )
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| 78 | {
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| 79 | /*
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| 80 | ** Let the parent do its thing
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| 81 | */
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| 82 |
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| 83 | RESPONSE::Write( sentence );
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| 84 |
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| 85 | sentence += IsArrivalCircleEntered;
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| 86 | sentence += IsPerpendicular;
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| 87 | sentence += CircleRadius;
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| 88 | sentence += "N";
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| 89 | sentence += WaypointID;
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| 90 |
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| 91 | sentence.Finish();
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| 92 |
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| 93 | return( TRUE );
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| 94 | }
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| 95 |
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| 96 | const AAM& AAM::operator = ( const AAM& source )
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| 97 | {
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| 98 | IsArrivalCircleEntered = source.IsArrivalCircleEntered;
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| 99 | IsPerpendicular = source.IsPerpendicular;
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| 100 | CircleRadius = source.CircleRadius;
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| 101 | WaypointID = source.WaypointID;
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| 102 |
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| 103 | return( *this );
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| 104 | }
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