CDataPosition.hpp

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// INDENTING (emacs/vi): -*- mode:c++; tab-width:2; c-basic-offset:2; intent-tabs-mode:nil; -*- ex: set tabstop=2 expandtab:
 
/*
 * Qt Virtual Chart Table (QVCT)
 * Copyright (C) 2012 Cedric Dufour <http://cedric.dufour.name>
 * Author: Cedric Dufour <http://cedric.dufour.name>
 *
 * The Qt Virtual Chart Table (QVCT) is free software:
 * you can redistribute it and/or modify it under the terms of the GNU General
 * Public License as published by the Free Software Foundation, Version 3.
 *
 * The Qt Virtual Chart Table (QVCT) is distributed in the hope
 * that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * See the GNU General Public License for more details.
 */
 
#ifndef QVCT_CDATAPOSITION_HPP
#define QVCT_CDATAPOSITION_HPP
 
// QT
class QDataStream;
 
 
 
class CDataPosition
{
 
  //------------------------------------------------------------------------------
  // CONSTANTS / STATIC
  //------------------------------------------------------------------------------
 
public:
  static constexpr double UNDEFINED_LONGITUDE = -999;
  static constexpr double UNDEFINED_LATITUDE = -99;
  static constexpr double UNDEFINED_ELEVATION = -9999999;
  static const CDataPosition UNDEFINED;
 
public:
  static double distanceGC( const CDataPosition& _roPosition1, const CDataPosition& _roPosition2 );
  static double bearingGC( const CDataPosition& _roPosition1, const CDataPosition& _roPosition2 );
  static double distanceRL( const CDataPosition& _roPosition1, const CDataPosition& _roPosition2 );
  static double bearingRL( const CDataPosition& _roPosition1, const CDataPosition& _roPosition2 );
  static double length( const CDataPosition& _roPosition1, const CDataPosition& _roPosition2 );
 
 
  //------------------------------------------------------------------------------
  // FIELDS
  //------------------------------------------------------------------------------
 
private:
 
  double fdLongitude;
 
  double fdLatitude;
 
  double fdElevation;
 
 
  //------------------------------------------------------------------------------
  // CONSTRUCTORS / DESTRUCTOR
  //------------------------------------------------------------------------------
 
public:
  CDataPosition();
  CDataPosition( double _fdLongitude, double _fdLatitude,
                double _fdElevation = UNDEFINED_ELEVATION );
  CDataPosition( const CDataPosition& _roDataPosition );
  virtual ~CDataPosition() {};
 
 
  //------------------------------------------------------------------------------
  // METHODS
  //------------------------------------------------------------------------------
 
  // SETTERS
public:
 
  void setPosition( double _fdLongitude, double _fdLatitude,
                    double _fdElevation = UNDEFINED_ELEVATION );
  void setPosition( const CDataPosition& _roDataPosition );
 
  void resetPosition();
  void setElevation( double _fdElevation ) { fdElevation = _fdElevation; };
 
  void resetElevation() { fdElevation = UNDEFINED_ELEVATION; };
 
  // GETTERS
public:
  double getLongitude() const { return fdLongitude; };
  double getLatitude() const { return fdLatitude; };
  double getElevation() const { return fdElevation; };
 
  // OTHER
public:
  void serialize( QDataStream& _rqDataStream ) const;
  void unserialize( QDataStream& _rqDataStream );
 
 
  // OPERATORS
public:
 
  bool operator==( const CDataPosition& _roPosition ) const;
 
  bool operator!=( const CDataPosition& _roPosition ) const;
 
  // COMPARATORS
public:
  static bool compareLongitudeAscending( const CDataPosition& _roPosition1, const CDataPosition& _roPosition2 );
  static bool compareLongitudeDescending( const CDataPosition& _roPosition1, const CDataPosition& _roPosition2 );
  static bool compareLatitudeAscending( const CDataPosition& _roPosition1, const CDataPosition& _roPosition2 );
  static bool compareLatitudeDescending( const CDataPosition& _roPosition1, const CDataPosition& _roPosition2 );
  static bool compareElevationAscending( const CDataPosition& _roPosition1, const CDataPosition& _roPosition2 );
  static bool compareElevationDescending( const CDataPosition& _roPosition1, const CDataPosition& _roPosition2 );
 
};
 
#endif // QVCT_CDATAPOSITION_HPP