156 lines
5.5 KiB
C++
156 lines
5.5 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2015-2016 Mario Luzeiro <mrluzeiro@ua.pt>
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* Copyright (C) 1992-2018 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/**
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* @file cpolygon2d.h
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* @brief
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*/
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#ifndef _CPOLYGON2D_H_
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#define _CPOLYGON2D_H_
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#include "cobject2d.h"
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#include "../accelerators/ccontainer2d.h"
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#include <geometry/shape_poly_set.h>
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#include <vector>
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typedef struct
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{
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SFVEC2F m_Start;
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float m_inv_JY_minus_IY;
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float m_JX_minus_IX;
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}POLYSEGMENT;
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typedef struct
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{
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SFVEC2F m_Start;
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SFVEC2F m_End;
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}SEG_NORMALS;
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typedef struct
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{
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SFVEC2F m_Start;
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SFVEC2F m_Precalc_slope;
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SEG_NORMALS m_Normals;
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}SEGMENT_WITH_NORMALS;
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typedef std::vector< POLYSEGMENT > SEGMENTS;
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/// This list will be used to test ray2d intersections. It will be a subset
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/// of an original polygon. The normals will be passed already interpolated.
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typedef std::vector< SEGMENT_WITH_NORMALS > SEGMENTS_WIDTH_NORMALS;
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/// This structured will be used to handle a sub set of a polygon.
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/// It can contain multiple closed polygons and holes.
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/// It will be used to test if points are inside. A point will be inside the
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/// polygon if it is not inside a hole and it is inside a Outer polygon.
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typedef struct
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{
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std::vector<SEGMENTS> m_Outers;
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std::vector<SEGMENTS> m_Holes;
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}OUTERS_AND_HOLES;
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/// This class represents a sub polygon block. This polygon block was created
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/// from a general polygon definition that was sub divided and create blocks of
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/// polygons. This polygon class represent a sub part of that main polygon.
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/// There is information for the contours (used to test the ray2d intersection)
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/// and a close definition of the block polygon to test if a point is inside.
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class CPOLYGONBLOCK2D : public COBJECT2D
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{
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private:
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/// This is the outer part of the polygon. This list is used to test a ray
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/// intersection with the boundaries of this sub polygon.
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/// It contains also the interpolated normals that are passed from the main
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/// polygon.
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SEGMENTS_WIDTH_NORMALS m_open_segments;
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/// A polygon block can have multiple polygon and holes
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OUTERS_AND_HOLES m_outers_and_holes;
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public:
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CPOLYGONBLOCK2D( const SEGMENTS_WIDTH_NORMALS &aOpenSegmentList,
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const OUTERS_AND_HOLES &aOuter_and_holes,
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const BOARD_ITEM &aBoardItem );
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// Imported from COBJECT2D
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bool Overlaps( const CBBOX2D &aBBox ) const override;
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bool Intersects( const CBBOX2D &aBBox ) const override;
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bool Intersect( const RAYSEG2D &aSegRay, float *aOutT, SFVEC2F *aNormalOut ) const override;
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INTERSECTION_RESULT IsBBoxInside( const CBBOX2D &aBBox ) const override;
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bool IsPointInside( const SFVEC2F &aPoint ) const override;
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};
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/// This dummy block will be defined by a 2d box size. If the point is inside
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/// the bounding box it will return allways true. However, the intersection with
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/// a ray will return allways false.
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/// This is used as a sub block extrated from polygon (pcb polygon areas) and
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/// represents an area that is full filled.
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class CDUMMYBLOCK2D : public COBJECT2D
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{
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public:
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CDUMMYBLOCK2D( const SFVEC2F &aPbMin,
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const SFVEC2F &aPbMax,
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const BOARD_ITEM &aBoardItem );
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CDUMMYBLOCK2D( const CBBOX2D &aBBox, const BOARD_ITEM &aBoardItem );
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// Imported from COBJECT2D
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bool Overlaps( const CBBOX2D &aBBox ) const override;
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bool Intersects( const CBBOX2D &aBBox ) const override;
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bool Intersect( const RAYSEG2D &aSegRay, float *aOutT, SFVEC2F *aNormalOut ) const override;
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INTERSECTION_RESULT IsBBoxInside( const CBBOX2D &aBBox ) const override;
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bool IsPointInside( const SFVEC2F &aPoint ) const override;
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};
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/**
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* @brief Convert_path_polygon_to_polygon_blocks_and_dummy_blocks
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* This function will use a polygon in the format of the ClipperLib::Path
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* will process it and will create multiple 2d objects (CPOLYGONBLOCK2D and
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* CDUMMYBLOCK2D) that can be used to represent this polygon area.
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* @param aMainPath - the polygon are that was converted from the pcb board
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* @param aDstContainer - the destination container to put the created sub blocks
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* @param aBiuTo3DunitsScale - the rendering target 3d scale
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* @param aDivFactor - a division factor (in 3Dunits) to divide the polygon plane,
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* 0.0f will use the internal polygon segm statistics
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*/
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void Convert_path_polygon_to_polygon_blocks_and_dummy_blocks(
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const SHAPE_POLY_SET &aMainPath,
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CGENERICCONTAINER2D &aDstContainer,
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float aBiuTo3DunitsScale,
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float aDivFactor,
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const BOARD_ITEM &aBoardItem );
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void Polygon2d_TestModule();
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#endif // _CPOLYGON2D_H_
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