arc_construction.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright The 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, see <https://www.gnu.org/licenses/>.
 */
 
#pragma once
 
#include <math/vector2d.h>

namespace KIGEOM
{
 
struct ARC_SOLUTION
{
    bool     valid = false;   
    VECTOR2I start;
    VECTOR2I mid;             
    VECTOR2I end;
    VECTOR2D center;
    double   radius = 0.0;
};
 

VECTOR2I ProjectToChordBisector( const VECTOR2I& aStart, const VECTOR2I& aEnd, const VECTOR2I& aCursor );
 

ARC_SOLUTION ArcThroughPoints( const VECTOR2I& aStart, const VECTOR2I& aOnArc, const VECTOR2I& aEnd );
 

ARC_SOLUTION ArcFromStartEndMidDrag( const VECTOR2I& aStart, const VECTOR2I& aEnd, const VECTOR2I& aCursor );
 

ARC_SOLUTION ArcFromStartEndCenterDrag( const VECTOR2I& aStart, const VECTOR2I& aEnd, const VECTOR2I& aCursor,
                                        bool aMajor );
 

ARC_SOLUTION ArcFromStartTangentEnd( const VECTOR2I& aStart, const VECTOR2D& aTangent, const VECTOR2I& aEnd );
 
} // namespace KIGEOM