satdat.cpp

来自「提取各种NEMA0183格式数据的类编程。」· C++ 代码 · 共 113 行

/*
** Author: Samuel R. Blackburn
** Internet: [e-mail]
**
** Copyright, 1996-2005, Samuel R. Blackburn
**
** "You can get credit for something or get it done, but not both."
** Dr. Richard Garwin
**
** BSD License follows.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** Redistributions of source code must retain the above copyright notice,
** this list of conditions and the following disclaimer. Redistributions
** in binary form must reproduce the above copyright notice, this list
** of conditions and the following disclaimer in the documentation and/or
** other materials provided with the distribution. Neither the name of
** the WFC nor the names of its contributors may be used to endorse or
** promote products derived from this software without specific prior
** written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**
** $Workfile: satdat.cpp $
** $Revision: 4 $
** $Modtime: 10/10/98 2:43p $
*/

#include "nmea0183.h"
#pragma hdrstop

#if defined( _DEBUG ) && defined( _INC_CRTDBG )
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#define new DEBUG_NEW
#endif // _DEBUG

SATELLITE_DATA::SATELLITE_DATA()
{
   Empty();
}

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

void SATELLITE_DATA::Empty( void )
{
   SatelliteNumber    = 0;
   ElevationDegrees   = 0;
   AzimuthDegreesTrue = 0;
   SignalToNoiseRatio = (-1);
}

void SATELLITE_DATA::Parse( int first_field_number, const SENTENCE& sentence )
{
   SatelliteNumber    = sentence.Integer( first_field_number );
   ElevationDegrees   = sentence.Integer( first_field_number + 1 );
   AzimuthDegreesTrue = sentence.Integer( first_field_number + 2 );
   
   CString field_data = sentence.Field( first_field_number + 3 );

   if ( field_data == TEXT( "" ) )
   {
      SignalToNoiseRatio = (-1);
   }
   else
   {
      SignalToNoiseRatio = sentence.Integer( first_field_number + 3 );
   }
     
}

void SATELLITE_DATA::Write( SENTENCE& sentence )
{
   sentence += SatelliteNumber;
   sentence += ElevationDegrees;
   sentence += AzimuthDegreesTrue;

   if ( SignalToNoiseRatio == (-1) )
   {
      sentence += TEXT( "" );
   }
   else
   {
      sentence += SignalToNoiseRatio;
   }
}

const SATELLITE_DATA& SATELLITE_DATA::operator = ( const SATELLITE_DATA& source )
{
   SatelliteNumber    = source.SatelliteNumber;
   ElevationDegrees   = source.ElevationDegrees;
   AzimuthDegreesTrue = source.AzimuthDegreesTrue;
   SignalToNoiseRatio = source.SignalToNoiseRatio;

   return( *this );
}