kicad/3d-viewer/3d_rendering/3d_render_raytracing/shapes2D/cpolygon4pts2d.h

/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2015-2016 Mario Luzeiro <mrluzeiro@ua.pt>
 * Copyright (C) 1992-2016 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
 */

/**
 * @file  cpolygon4pts2d.h
 * @brief A simplified 4 point polygon
 */

#ifndef _CPOLYGON4PTS2D_H_
#define _CPOLYGON4PTS2D_H_

#include "cobject2d.h"

/**
 *  This handles simple polygons with 4 points. Used for pads.
 *  (rectangles, trapezoids, with rotation.etc)
 *  This is a simplified version of the cpolygon2d class
 */
class  CPOLYGON4PTS2D : public COBJECT2D
{
private:
    SFVEC2F m_segments[4];
    SFVEC2F m_precalc_slope[4];
    SFVEC2F m_seg_normal[4];

public:
    CPOLYGON4PTS2D( const SFVEC2F &v1,
                    const SFVEC2F &v2,
                    const SFVEC2F &v3,
                    const SFVEC2F &v4,
                    const BOARD_ITEM &aBoardItem );

    const SFVEC2F &GetV0() const { return m_segments[0]; }
    const SFVEC2F &GetV1() const { return m_segments[1]; }
    const SFVEC2F &GetV2() const { return m_segments[2]; }
    const SFVEC2F &GetV3() const { return m_segments[3]; }

    const SFVEC2F &GetN0() const { return m_seg_normal[0]; }
    const SFVEC2F &GetN1() const { return m_seg_normal[1]; }
    const SFVEC2F &GetN2() const { return m_seg_normal[2]; }
    const SFVEC2F &GetN3() const { return m_seg_normal[3]; }

    // Imported from COBJECT2D
    bool Overlaps( const CBBOX2D &aBBox ) const override;
    bool Intersects( const CBBOX2D &aBBox ) const override;
    bool Intersect( const RAYSEG2D &aSegRay, float *aOutT, SFVEC2F *aNormalOut ) const override;
    INTERSECTION_RESULT IsBBoxInside( const CBBOX2D &aBBox ) const override;
    bool IsPointInside( const SFVEC2F &aPoint ) const override;
};


#endif // _CPOLYGON4PTS2D_H_