//----------------------------------------------------------------------------
//  EgalTech 2013-2014
//----------------------------------------------------------------------------
// File : DistPointArc.h      Data : 28.12.13          Versione : 1.4l5
// Contenuto : Dichiarazione della classe distanza punto da circonferenza/arco.
//
//
//
// Modifiche : 28.12.13 DS Creazione modulo.
//
//
//----------------------------------------------------------------------------

#pragma once

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


//-----------------------------------------------------------------------------
class DistPointArc
{
   friend class DistPointCurve ;

   public :
      DistPointArc( const Point3d& ptP, const ICurveArc& arArc) ;

   public :
      bool GetSqDist( double& dSqDist) const ;
      bool GetDist( double& dDist) const ;
      bool IsEpsilon( double dTol) const
              { double dSqDist ; return ( GetSqDist( dSqDist) && ( dSqDist < SQ_EPS_ZERO || dSqDist < dTol * dTol)) ; }
      bool IsSmall( void) const
              { return IsEpsilon( EPS_SMALL) ; }
      bool IsZero( void) const
              { return IsEpsilon( EPS_ZERO) ; }
      int  GetNbrMinDist( void) const
              { return (int) m_Info.size() ; }
      bool GetMinDistPoint( int nInd, Point3d& ptMinDist, int& nFlag) const ;
      bool GetParamAtMinDistPoint( int nInd, double& dParam, int& nFlag) const ;

   private :
      DistPointArc( void) ;
      void DistPointCircle( const Point3d& ptP, const ICurveArc& arArc) ;
      void DistPointFlatArc( const Point3d& ptP, const ICurveArc& arArc) ;
      void DistPointHelix( const Point3d& ptP, const ICurveArc& arArc) ;

   private :
      double      m_dDist ;
      MDPCIVECTOR m_Info ;
} ;