polygon_2d.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2015-2016 Mario Luzeiro <[email protected]>
 * Copyright (C) 1992-2020 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 _CPOLYGON2D_H_
#define _CPOLYGON2D_H_
 
#include "object_2d.h"
#include "../accelerators/container_2d.h"
#include <geometry/shape_poly_set.h>
#include <vector>
 
 
struct POLYSEGMENT
{
    SFVEC2F m_Start;
    float   m_inv_JY_minus_IY = 0.0;
    float   m_JX_minus_IX = 0.0;
};
 
 
struct SEG_NORMALS
{
    SFVEC2F m_Start;
    SFVEC2F m_End;
};
 
 
struct SEGMENT_WITH_NORMALS
{
    SFVEC2F     m_Start;
    SFVEC2F     m_Precalc_slope;
    SEG_NORMALS m_Normals;
};
 
 
typedef std::vector< POLYSEGMENT > SEGMENTS;
 
 
typedef std::vector< SEGMENT_WITH_NORMALS > SEGMENTS_WIDTH_NORMALS;
 
 
struct OUTERS_AND_HOLES
{
    std::vector<SEGMENTS> m_Outers;
    std::vector<SEGMENTS> m_Holes;
};
 
 
class POLYGON_2D : public OBJECT_2D
{
public:
    POLYGON_2D( const SEGMENTS_WIDTH_NORMALS& aOpenSegmentList,
                const OUTERS_AND_HOLES& aOuterAndHoles, const BOARD_ITEM& aBoardItem );
 
    bool Overlaps( const BBOX_2D& aBBox ) const override;
    bool Intersects( const BBOX_2D& aBBox ) const override;
    bool Intersect( const RAYSEG2D& aSegRay, float* aOutT, SFVEC2F* aNormalOut ) const override;
    INTERSECTION_RESULT IsBBoxInside( const BBOX_2D& aBBox ) const override;
    bool IsPointInside( const SFVEC2F& aPoint ) const override;
 
private:
    SEGMENTS_WIDTH_NORMALS m_open_segments;
 
    OUTERS_AND_HOLES m_outers_and_holes;
};
 
 
class DUMMY_BLOCK_2D : public OBJECT_2D
{
public:
    DUMMY_BLOCK_2D( const SFVEC2F& aPbMin, const SFVEC2F& aPbMax, const BOARD_ITEM& aBoardItem );
 
    DUMMY_BLOCK_2D( const BBOX_2D& aBBox, const BOARD_ITEM& aBoardItem );
 
     bool Overlaps( const BBOX_2D& aBBox ) const override;
     bool Intersects( const BBOX_2D& aBBox ) const override;
     bool Intersect( const RAYSEG2D& aSegRay, float* aOutT, SFVEC2F* aNormalOut ) const override;
     INTERSECTION_RESULT IsBBoxInside( const BBOX_2D& aBBox ) const override;
     bool IsPointInside( const SFVEC2F& aPoint ) const override;
};
 
 
void ConvertPolygonToBlocks( const SHAPE_POLY_SET& aMainPath, CONTAINER_2D_BASE& aDstContainer,
                            float aBiuTo3dUnitsScale, float aDivFactor,
                            const BOARD_ITEM& aBoardItem, int aPolyIndex );
 
void Polygon2d_TestModule();
 
#endif // _CPOLYGON2D_H_