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//
// Filename : Bezier.h
// Author(s) : Stephane Grabli
// Purpose : Class to define a Bezier curve of order 4.
// Date of creation : 04/06/2003
//
///////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) : Please refer to the COPYRIGHT file distributed
// with this source distribution.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
///////////////////////////////////////////////////////////////////////////////
#ifndef BEZIER_H
# define BEZIER_H
#include <vector>
#include "../system/FreestyleConfig.h"
#include "Geom.h"
using namespace Geometry;
class LIB_GEOMETRY_EXPORT BezierCurveSegment
{
private:
std::vector<Vec2d> _ControlPolygon;
std::vector<Vec2d> _Vertices;
public:
BezierCurveSegment();
virtual ~BezierCurveSegment();
void AddControlPoint(const Vec2d& iPoint);
void Build();
inline int size() const {return _ControlPolygon.size();}
inline std::vector<Vec2d>& vertices() {return _Vertices;}
};
class LIB_GEOMETRY_EXPORT BezierCurve
{
private:
std::vector<Vec2d> _ControlPolygon;
std::vector<BezierCurveSegment*> _Segments;
BezierCurveSegment *_currentSegment;
public:
BezierCurve();
BezierCurve(std::vector<Vec2d>& iPoints, double error=4.0);
virtual ~BezierCurve();
void AddControlPoint(const Vec2d& iPoint);
std::vector<Vec2d>& controlPolygon() {return _ControlPolygon;}
std::vector<BezierCurveSegment*>& segments() {return _Segments;}
};
#endif // BEZIER_H
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