bezierethz.h

/***************************************************************************
 bezierethz
 -------------------
 copyright            : (C) 2013 CREALP Lucien Schreiber
 ***************************************************************************/
 
/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef _BEZIER_ETHZ_H_
#define _BEZIER_ETHZ_H_
 
#include <wx/wxprec.h>
 
#ifndef WX_PRECOMP
#include <wx/wx.h>
#endif
 
WX_DECLARE_LIST(wxRealPoint, wxRealPointList);
 
class BezierEthz {
  public:
    BezierEthz(double width, int maxpoints);
 
    ~BezierEthz();
 
    void Init(wxRealPoint P1, wxRealPoint P2, wxRealPoint P3, wxRealPoint P4);
 
    wxRealPointList* GetPointListRef() {
        return &m_Points;
    }
 
  private:
    double m_Width;
    int m_MaxPoints;
    wxRealPointList m_Points;
 
    void _BezierPoint(const wxRealPoint& A, const wxRealPoint& B, wxRealPoint& result, double t);
 
    bool _Segmentation(const wxRealPoint& P1, const wxRealPoint& P2, const wxRealPoint& P3, const wxRealPoint& P4,
                       double t, wxRealPoint& result);
 
    bool _IsPointUsefull(const wxRealPoint& PBefore, const wxRealPoint& P, const wxRealPoint& PAfter);
};
 
#endif