//----------------------------------------------------------------------------
//  EgalTech 2013-2014
//----------------------------------------------------------------------------
// File : DistPointLine.h      Data : 02.01.14          Versione : 1.5a1
// Contenuto : Dichiarazione dell'oggetto distanza punto da linea/segmento.
//
//
//
// Modifiche : 30.12.12 DS Creazione modulo.
//
//
//----------------------------------------------------------------------------

#pragma once

#include "/EgtDev/Include/EGkPoint3d.h"
#include "/EgtDev/Include/EGkCurveLine.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
{
   friend class DistPointCurve ;

   public :
      EGK_EXPORT DistPointLine( const Point3d& ptP,
                                const ICurveLine& crvLine, bool bIsSegment = true) ;
      EGK_EXPORT DistPointLine( const Point3d& ptP,
                                const Point3d& ptIni, const Point3d& ptFin, bool bIsSegment = true) ;
      EGK_EXPORT DistPointLine( const Point3d& ptP,
                                const Point3d& ptIni, const Vector3d& vtDir, double dLen, bool bIsSegment = true)
                    { Calculate( ptP, ptIni, vtDir, dLen, bIsSegment) ; }

   public :
      EGK_EXPORT bool GetSqDist( double& dSqDist) ;
      EGK_EXPORT bool GetDist( double& dDist) ;
      EGK_EXPORT bool GetPointMinDist( Point3d& ptMinDist) ;
      EGK_EXPORT bool GetParamAtPointMinDist( double& dParam) ;

   private :
      DistPointLine( void) ;
      void Calculate( const Point3d& ptP,
                      const Point3d& ptIni, const Vector3d& vtDir, double dLen, bool bIsSegment) ;

   private :
      double  m_dSqDist ;
      double  m_dDist ;
      double  m_dParam ;
      Point3d m_ptMinDist ;
} ;