kicad/libs/kimath/include/bezier_curves.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2014-2021 KiCad Developers, see AUTHORS.txt for contributors.
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*
* 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, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
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#ifndef BEZIER_CURVES_H
#define BEZIER_CURVES_H
#include <vector>
#include <wx/gdicmn.h>
#include <math/vector2d.h>
/**
* Bezier curves to polygon converter.
*
* Only quadratic and cubic Bezier curves are handled
*/
class BEZIER_POLY
{
public:
BEZIER_POLY( const std::vector<wxPoint>& aControlPoints );
BEZIER_POLY( const std::vector<VECTOR2D>& aControlPoints )
: m_ctrlPts( aControlPoints )
{
m_minSegLen = 0.0;
}
/**
* Convert a Bezier curve to a polygon.
*
* @param aOutput will be used as an output vector storing polygon points.
* @param aMinSegLen is the min dist between 2 successive points.
* It can be used to reduce the number of points.
* (the last point is always generated)
*/
void GetPoly( std::vector<wxPoint>& aOutput, int aMinSegLen = 0 );
void GetPoly( std::vector<VECTOR2D>& aOutput, double aMinSegLen = 0.0 );
private:
double m_minSegLen;
///< Control points
std::vector<VECTOR2D> m_ctrlPts;
};
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#endif // BEZIER_CURVES_H