latlong.hpp

提取各种NEMA0183格式数据的类编程。

#if ! defined( LATLONG_CLASS_HEADER )

#define LATLONG_CLASS_HEADER

/*
** 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: latlong.hpp $
** $Revision: 6 $
** $Modtime: 10/13/98 6:23a $
*/

class SENTENCE;

class COORDINATE
{
   public:

      COORDINATE() { Coordinate = 0.0; }
     ~COORDINATE() { Coordinate = 0.0; }

      double Coordinate;

      double GetDecimalDegrees( void ) const;
      double GetDecimalMinutes( void ) const;
      double GetDecimalSeconds( void ) const;
      int    GetWholeDegrees( void ) const;
      int    GetWholeMinutes( void ) const;
      int    GetWholeSeconds( void ) const;
};

class LATITUDE : public COORDINATE
{
   public:

      LATITUDE();
      virtual ~LATITUDE();

      /*
      ** Data
      */

      double Latitude;

      NORTHSOUTH Northing;

      /*
      ** Methods
      */

      virtual void Empty( void );
      virtual BOOL IsDataValid( void );
      virtual void Parse( int PositionFieldNumber, int NorthingFieldNumber, const SENTENCE& LineToParse );
      virtual void Set( double Position, const char *Northing );
      virtual void Write( SENTENCE& sentence );

      /*
      ** Operators
      */

      virtual const LATITUDE& operator = ( const LATITUDE& source );
};

class LONGITUDE : public COORDINATE
{
   public:

      LONGITUDE();
      virtual ~LONGITUDE();

      /*
      ** Data
      */

      double Longitude;

      EASTWEST Easting;

      /*
      ** Methods
      */

      virtual void Empty( void );
      virtual BOOL IsDataValid( void );
      virtual void Parse( int PositionFieldNumber, int EastingFieldNumber, const SENTENCE& LineToParse );
      virtual void Set( double Position, const char *Easting );
      virtual void Write( SENTENCE& sentence );

      /*
      ** Operators
      */

      virtual const LONGITUDE& operator = ( const LONGITUDE& source );
};

class LATLONG
{
   public:

      LATLONG();
      virtual ~LATLONG();

      /*
      ** Data
      */

      LATITUDE  Latitude;
      LONGITUDE Longitude;

      /*
      ** Methods
      */
       
      virtual void Empty( void );
      virtual BOOL Parse( int LatitudePostionFieldNumber, int NorthingFieldNumber, int LongitudePositionFieldNumber, int EastingFieldNumber, const SENTENCE& LineToParse );
      virtual CString ToText( void ) const;
      virtual void Write( SENTENCE& sentence );

      /*
      ** Operators
      */

      virtual const LATLONG& operator = ( const LATLONG& source );
};

#endif // LATLONG_CLASS_HEADER