//----------------------------------------------------------------------------
//  EgalTech 2013-2013
//----------------------------------------------------------------------------
// File : EGkPolyLine.cpp       Data : 22.12.13          Versione : 1.4l3
// Contenuto : Dichiarazione della classe PolyLine.
//
//
//
// Modifiche : 22.12.13 DS Creazione modulo.
//
//
//----------------------------------------------------------------------------

#pragma once

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


//-----------------------------------------------------------------------------
class PolyLine
{
   public :
      PolyLine( void) ;
      ~PolyLine( void) ;
      bool AddUPoint( double dPar, const Point3d& ptP) ;
      bool EraseFirstUPoint( void) ;
      bool AddOffsetToU( double dOffset) ;
      bool Splice( PolyLine& PL) ;
      int  GetPointNbr( void) const
              { return m_nCount ; }
      bool GetFirstUPoint( double* pdPar, Point3d* pptP) const ;
      bool GetNextUPoint( double* pdPar, Point3d* pptP) const ;
      bool GetFirstU( double& dPar) const
              { return GetFirstUPoint( &dPar, nullptr) ; }
      bool GetNextU( double& dPar) const
              { return GetNextUPoint( &dPar, nullptr) ; }
      bool GetFirstPoint( Point3d& ptP) const
              { return GetFirstUPoint( nullptr, &ptP) ; }
      bool GetNextPoint( Point3d& ptP) const
              { return GetNextUPoint( nullptr, &ptP) ; }
      bool GetLastUPoint( double* pdPar, Point3d* pptP) const ;
      bool GetLastU( double& dPar)
              { return GetLastUPoint( &dPar, nullptr) ; }
      bool GetLastPoint( Point3d& ptP)
              { return GetLastUPoint( nullptr, &ptP) ; }
      int  GetLineNbr( void) const
              { return ( m_nCount > 1 ? ( m_nCount - 1) : 0) ; }
      bool GetFirstULine( double* pdIni, Point3d* pptIni, double* pdFin, Point3d* pptFin) const ;
      bool GetNextULine( double* pdIni, Point3d* pptIni, double* pdFin, Point3d* pptFin) const ;
      bool GetFirstLine( Point3d& ptIni, Point3d& ptFin) const
              { return GetFirstULine( nullptr, &ptIni, nullptr, &ptFin) ; }
      bool GetNextLine( Point3d& ptIni, Point3d& ptFin) const
              { return GetNextULine( nullptr, &ptIni, nullptr, &ptFin) ; }

   private :
      int      m_nCount ;
      UPNTLIST m_lUPoints ;
      mutable UPNTLIST::const_iterator m_iter ;
} ;