//----------------------------------------------------------------------------
//  EgalTech 2013-2014
//----------------------------------------------------------------------------
// File : EGkDistPointCurve.h     Data : 02.01.14        Versione : 1.5a1
// Contenuto : Dichiarazione della classe distanza punto da Curva.
//
//
//
// Modifiche : 02.01.14 DS Creazione modulo.
//
//
//----------------------------------------------------------------------------

#pragma once

#include "/EgtDev/Include/EGkPoint3d.h"
#include "/EgtDev/Include/EGkCurve.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 DistPointCurve
{
   public :
      EGK_EXPORT DistPointCurve( const Point3d& ptP, const ICurve& Curve) ;

   public :
      EGK_EXPORT bool GetSqDist( double& dSqDist) ;
      EGK_EXPORT bool GetDist( double& dDist) ;
      EGK_EXPORT bool GetPointMinDist( Point3d& ptMinDist, bool* pbDet = nullptr) ;
      EGK_EXPORT bool GetParamAtPointMinDist( double& dParam, bool* pbDet = nullptr) ;

   private :
      DistPointCurve( void) ;
      void LineCalculate( const Point3d& ptP, const ICurve& Curve) ;
      void ArcCalculate( const Point3d& ptP, const ICurve& Curve) ;
      void CrvBezierCalculate( const Point3d& ptP, const ICurve& Curve) ;
      void CrvCompositeCalculate( const Point3d& ptP, const ICurve& Curve) ;

   private :
      bool    m_bDet ;
      double  m_dDist ;
      double  m_dParam ;
      Point3d m_ptMinDist ;
} ;