freqmode.cpp

来自网络,国外网友做的,vc++代码,测试过,表示感谢. 可以读取串口GPS数据显示地理位置,需要有外置的串口的GPS接收机连接电脑,在demo主窗口界面可以输出GPS接收的地理位置,经度纬度,时间

#include "nmea0183.h"
#pragma hdrstop

/*
** Author: Samuel R. Blackburn
** Internet: [e-mail]
**
** You can use it any way you like as long as you don't try to sell it.
**
** Copyright, 1996, Samuel R. Blackburn
**
** $Workfile: freqmode.cpp $
** $Revision: 5 $
** $Modtime: 10/10/98 2:46p $
*/

#ifdef _DEBUG
#undef THIS_FILE
static char BASED_CODE THIS_FILE[] = __FILE__;
#endif

FREQUENCY_AND_MODE::FREQUENCY_AND_MODE()
{
   Empty();
}

FREQUENCY_AND_MODE::~FREQUENCY_AND_MODE()
{
   Empty();
}

void FREQUENCY_AND_MODE::Empty( void )
{
   Frequency = 0.0;
   Mode      = CommunicationsModeUnknown;
}

void FREQUENCY_AND_MODE::Parse( int first_field_number, const SENTENCE& sentence )
{
   Frequency = sentence.Double( first_field_number );
   Mode      = sentence.CommunicationsMode( first_field_number + 1 );
}

void FREQUENCY_AND_MODE::Write( SENTENCE& sentence )
{
   sentence += Frequency;
   sentence += Mode;
}

const FREQUENCY_AND_MODE& FREQUENCY_AND_MODE::operator = ( const FREQUENCY_AND_MODE& source )
{
   Frequency = source.Frequency;
   Mode      = source.Mode;

   return( *this );
}