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// Copyright (C) 2002-2025, Open Design Alliance (the "Alliance"). 
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//   
//   This application incorporates Open Design Alliance software pursuant to a license 
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//   Open Design Alliance Copyright (C) 2002-2025 by Open Design Alliance. 
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///////////////////////////////////////////////////////////////////////////////

#ifndef OD_GE_POLYLINE_2D_H
#define OD_GE_POLYLINE_2D_H /*!DOM*/

#include "OdPlatform.h"
#include "Ge/GeSplineEnt2d.h"

#include "TD_PackPush.h"

/** \details
    This class represents piecewise linear splines in 2D space.

    Corresponding C++ library: TD_Ge

    <group OdGe_Classes> 
*/
class GE_TOOLKIT_EXPORT OdGePolyline2d : public OdGeSplineEnt2d
{
public:
  GE_OPERATORS_OVERRIDE_2D(OdGePolyline2d);
  
  /** \details
    Default constructor for the OdGePolyline2d class.
  */
  OdGePolyline2d();
  
  /** \details
    Copy constructor for the OdGePolyline2d class.
    
    \param source [in]  Object to be copied.
  */
  OdGePolyline2d(
    const OdGePolyline2d& source);
  
  /** \details
    Constructor for the OdGePolyline2d class.
    
    \param fitpoints [in]  Array of fit points with which a polyline is constructed.

    \remarks
    The constructor constructs a polyline by the specified fit points.
  */
  OdGePolyline2d(
    const OdGePoint2dArray& fitpoints);
  
  /** \details
    Constructor for the OdGePolyline2d class.
    
    \param knots [in]  Knot vector.
    \param points [in]  Array of 2D points with which a polyline is constructed.

    \remarks
    Constructs a polyline with the knots and point values established.
  */
  OdGePolyline2d(
    const OdGeKnotVector& knots,
    const OdGePoint2dArray& points);
  
  /** \details
    Constructor for the OdGePolyline2d class.
    
    \param crv [in]  Input curve to be approximated by a polyline.
    \param approxEps [in]  Input approximation tolerance.

    \remarks
    Constructs a polyline approximating a curve within the specified tolerance.
  */
  OdGePolyline2d(
    const OdGeCurve2d& crv, 
    double approxEps);

  /** \details
    Returns the number of fit points.
  */
  int numFitPoints() const;

  /** \details
    Returns the fit point at the specified index.

    \param fitPointIndex [in]  Fit point index.
  */
  OdGePoint2d fitPointAt(
    int fitPointIndex) const;

  /** \details
    Sets the fit point at the specified index, and returns a reference to this curve.

    \param fitPointIndex [in]  An index by which a fit point is set.
    \param point [in]  Any 2D point to be set.
  */
  OdGeSplineEnt2d& setFitPointAt(
    int fitPointIndex, 
    const OdGePoint2d& point);

  /** \details
    Assignment operator for the OdGePolyline2d object.

    \param polyline [in]  Polyline to assign.
    
    \returns
    Reference to this OdGePolyline2d object.
  */
  OdGePolyline2d& operator =(const OdGePolyline2d& polyline);
};

#include "TD_PackPop.h"

#endif // OD_GE_POLYLINE_2D_H