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: rot.cpp $
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13 | ** $Revision: 4 $
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14 | ** $Modtime: 10/10/98 2:56p $
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15 | */
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16 |
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17 | #ifdef _MSC_VER
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18 | # pragma warning(disable:4996)
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19 | #endif // _MSC_VER
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20 |
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21 | ROT::ROT()
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22 | {
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23 | Mnemonic = "ROT";
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24 | Empty();
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25 | }
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26 |
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27 | ROT::~ROT()
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28 | {
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29 | //Mnemonic.Empty();
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30 | Empty();
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31 | }
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32 |
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33 | void ROT::Empty( void )
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34 | {
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35 | RateOfTurn = 0.0;
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36 | IsDataValid = NMEA_Unknown;
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37 | }
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38 |
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39 | BOOL ROT::Parse( const SENTENCE& sentence )
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40 | {
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41 | /*
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42 | ** ROT - Rate Of Turn
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43 | **
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44 | ** 1 2 3
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45 | ** | | |
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46 | ** $--ROT,x.x,A*hh<CR><LF>
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47 | **
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48 | ** Field Number:
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49 | ** 1) Rate Of Turn, degrees per minute, "-" means bow turns to port
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50 | ** 2) Status, A means data is valid
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51 | ** 3) Checksum
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52 | */
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53 |
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54 | /*
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55 | ** First we check the checksum...
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56 | */
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57 |
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58 | if ( sentence.IsChecksumBad( 3 ) == True )
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59 | {
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60 | SetErrorMessage( "Invalid Checksum" );
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61 | return( FALSE );
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62 | }
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63 |
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64 | RateOfTurn = sentence.Double( 1 );
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65 | IsDataValid = sentence.Boolean( 2 );
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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 | QString ROT::PlainEnglish( void ) const
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71 | {
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72 | QString return_string;
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73 |
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74 | return_string = "The bow is turning to ";
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75 |
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76 | char temp_string[ 80 ];
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77 |
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78 | if ( RateOfTurn < 0 )
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79 | {
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80 | ::sprintf( temp_string, "Port at a rate of %4.1lf degrees per minute.", (double) (RateOfTurn * -1.0) );
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81 | }
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82 | else
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83 | {
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84 | ::sprintf( temp_string, "Starboard at a rate of %4.1lf degrees per minute.", RateOfTurn );
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85 | }
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86 |
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87 | return_string += temp_string;
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88 |
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89 | if ( IsDataValid != True )
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90 | {
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91 | if ( IsDataValid == False )
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92 | {
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93 | return_string += " However, this data is not valid.";
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94 | }
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95 | else
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96 | {
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97 | return_string += " However, this data cannot be confirmed.";
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98 | }
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99 | }
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100 |
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101 | return( return_string );
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102 | }
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103 |
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104 | BOOL ROT::Write( SENTENCE& sentence )
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105 | {
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106 | /*
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107 | ** Let the parent do its thing
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108 | */
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109 |
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110 | RESPONSE::Write( sentence );
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111 |
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112 | sentence += RateOfTurn;
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113 | sentence += IsDataValid;
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114 |
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115 | sentence.Finish();
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116 |
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117 | return( TRUE );
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118 | }
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119 |
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120 | const ROT& ROT::operator = ( const ROT& source )
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121 | {
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122 | RateOfTurn = source.RateOfTurn;
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123 | IsDataValid = source.IsDataValid;
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124 |
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125 | return( *this );
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126 | }
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