kicad/libs/kimath/include/geometry/convex_hull.h

63 lines
2.2 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2016 Jean-Pierre Charras, jp.charras at wanadoo.fr
* Copyright (C) 1992-2021 KiCad Developers, see AUTHORS.txt for contributors.
*
* 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
*/
#ifndef __CONVEX_HULL_H
#define __CONVEX_HULL_H
#include <vector>
#include <math/vector2d.h>
class SHAPE_POLY_SET;
/**
* Calculate the convex hull of a list of points in counter-clockwise order.
*
* @param aResult is a vector to store the convex polygon.
* @param aPoly is the list of points.
*/
void BuildConvexHull( std::vector<VECTOR2I>& aResult, const std::vector<VECTOR2I>& aPoly );
/**
* Calculate the convex hull of a #SHAPE_POLY_SET.
*
* @param aResult is a vector to store the convex polygon.
* @param aPolygons is the #SHAPE_POLY_SET.
*/
void BuildConvexHull( std::vector<VECTOR2I>& aResult, const SHAPE_POLY_SET& aPolygons );
/**
* Calculate the convex hull (rotated and moved) of a #SHAPE_POLY_SET.
*
* @param aResult is a vector to store the convex polygon.
* @param aPolygons is the set of polygons.
* @param aPosition is the final position of the convex hull.
* @param aRotation is the rotation of the convex hull.
*/
void BuildConvexHull( std::vector<VECTOR2I>& aResult, const SHAPE_POLY_SET& aPolygons,
const VECTOR2I& aPosition, double aRotation );
#endif // __CONVEX_HULL_H