//----------------------------------------------------------------------------
//  EgalTech 2013-2013
//----------------------------------------------------------------------------
// File : EGkDistPointLine.h      Data : 17.12.13          Versione : 1.4l1
// Contenuto : Dichiarazione dell'oggetto distanza punto da linea/segmento.
//
//
//
// Modifiche : 30.12.12 DS Creazione modulo.
//
//
//----------------------------------------------------------------------------

#pragma once

#include "/EgtDev/Include/EGkPoint3d.h"

//----------------------- Macro per import/export ----------------------------
#undef EGK_EXPORT
#if defined( I_AM_EGK)            // da definirsi solo nella DLL
   #define EGK_EXPORT __declspec( dllexport)
#else
   #define EGK_EXPORT __declspec( dllimport)
#endif


//-----------------------------------------------------------------------------
class DistPointLine
{
   public :
      EGK_EXPORT DistPointLine( void) ;

   public :
      EGK_EXPORT bool Set( const Point3d& ptP, const Point3d& ptIni, const Point3d& ptFin, bool bIsSegment) ;
      EGK_EXPORT bool SetPoint( const Point3d& ptP) ;
      EGK_EXPORT bool SetLine( const Point3d& ptIni, const Point3d& ptFin, bool bIsSegment) ;
      EGK_EXPORT double GetSqDist( void) ;
      EGK_EXPORT double GetDist( void) ;
      EGK_EXPORT const Point3d& GetPointMinDist( void) ;

   private :
      bool Calculate( void) ;

   private :
      Point3d  m_ptP ;
      Point3d  m_ptIni ;
      Vector3d m_vtDir ;
      double   m_dLen ;
      bool     m_bIsSegment ;
      double   m_dSqDist ;
      double   m_dDist ;
      Point3d  m_ptMinDist ;
} ;