//----------------------------------------------------------------------------
//  EgalTech 2015-2023
//----------------------------------------------------------------------------
// File : EGkCurveByApprox.h      Data : 28.07.23       Versione : 2.5g3
// Contenuto : Dichiarazione della classe CurveByApprox.
//
//
//
// Modifiche : 23.07.15 DS Creazione modulo.
//             28.07.23 DS GetArcs e GetArcsCorner.
//
//----------------------------------------------------------------------------

#pragma once

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

class ICurve ;
class PolyLine ;
class PolyArc ;

//----------------------- 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 CurveByApprox
{

   public :
      EGK_EXPORT bool Reset( void) ;
      EGK_EXPORT bool AddPoint( const Point3d& ptP) ;
      EGK_EXPORT ICurve* GetCurve( int nType, double dLinTol, double dAngTolDeg, double dLinFea) ;
      EGK_EXPORT bool GetArcs( double dLinTol, double dAngTolDeg, PolyArc& PA) ;
      EGK_EXPORT bool GetArcsCorner( double dLinTol, double dAngTolDeg, double dLinFea, PolyArc& PA) ;

   public :
      enum TYPE { ARCS = 0, ARCS_CORNER = 1, CUBIC_BEZIERS = 2} ;

   private :
      bool CalcParameterization( void) ;
      bool CalcAkimaTangents( bool bCorner) ;
      bool CalcBesselTangents( void) ;
      bool CalcSplitPoints( double dLinTol, double dAngTolDeg, double dLinFea) ;
      bool BiArcOrSplit( int nLev, PolyLine& PL, double dLinTol, double dAngTolDeg, PolyArc& PA) const ;

   private :
      PNTVECTOR   m_vPnt ;
      DBLVECTOR   m_vPar ;
      VCT3DVECTOR m_vPrevDer ;
      VCT3DVECTOR m_vNextDer ;
      INTVECTOR   m_vSplits ;
} ;