public override void Empty()
{
base.Empty();
DeccaChainID = 0;
Red.Empty();
Green.Empty();
Purple.Empty();
RedLineNavigationUse = Boolean.Unknown;
GreenLineNavigationUse = Boolean.Unknown;
PurpleLineNavigationUse = Boolean.Unknown;
PositionUncertaintyNauticalMiles = 0.0D;
Basis = FixDataBasis.Unknown;
}
public override bool Parse(Sentence sentence)
{
/*
** DCN - Decca Position
** 11 13 16
** 1 2 3 4 5 6 7 8 9 10| 12| 14 15| 17
** | | | | | | | | | | | | | | | | |
** $--DCN,xx,cc,x.x,A,cc,x.x,A,cc,x.x,A,A,A,A,x.x,N,x*hh<CR><LF>
**
** 1) Decca chain identifier
** 2) Red Zone Identifier
** 3) Red Line Of Position
** 4) Red Master Line Status
** 5) Green Zone Identifier
** 6) Green Line Of Position
** 7) Green Master Line Status
** 8) Purple Zone Identifier
** 9) Purple Line Of Position
** 10) Purple Master Line Status
** 11) Red Line Navigation Use
** 12) Green Line Navigation Use
** 13) Purple Line Navigation Use
** 14) Position Uncertainity
** 15) N = Nautical Miles
** 16) Fix Data Basis
** 1 = Normal Pattern
** 2 = Lane Identification Pattern
** 3 = Lane Identification Transmissions
** 17) Checksum
*/
/*
** First we check the checksum...
*/
if (sentence.IsChecksumBad() == Boolean.True)
{
Empty();
return(false);
}
DeccaChainID = sentence.Integer(1);
Red.Parse(2, sentence);
Green.Parse(5, sentence);
Purple.Parse(8, sentence);
RedLineNavigationUse = sentence.Boolean(11);
GreenLineNavigationUse = sentence.Boolean(12);
PurpleLineNavigationUse = sentence.Boolean(13);
PositionUncertaintyNauticalMiles = sentence.Double(14);
int temp_integer = sentence.Integer(16);
switch (temp_integer)
{
case 1:
Basis = FixDataBasis.NormalPattern;
break;
case 2:
Basis = FixDataBasis.LaneIdentificationPattern;
break;
case 3:
Basis = FixDataBasis.LaneIdentificationTransmissions;
break;
default:
Basis = FixDataBasis.Unknown;
break;
}
return(true);
}
