kicad/3d-viewer/3d_rendering/raytracing/shapes2D/triangle_2d.h

70 lines
2.4 KiB
C++

/*
* 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) 1992-2020 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
*/
/**
* @file triangle_2d.h
*/
#ifndef _TRIANGLE_2D_H_
#define _TRIANGLE_2D_H_
#include "object_2d.h"
#include "../accelerators/container_2d.h"
#include <geometry/shape_line_chain.h>
#include <geometry/shape_poly_set.h>
#include <clipper.hpp>
class TRIANGLE_2D : public OBJECT_2D
{
public:
TRIANGLE_2D( const SFVEC2F& aV1, const SFVEC2F& aV2, const SFVEC2F& aV3,
const BOARD_ITEM& aBoardItem );
const SFVEC2F& GetP1() const { return p1; }
const SFVEC2F& GetP2() const { return p2; }
const SFVEC2F& GetP3() const { return p3; }
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:
SFVEC2F p1;
SFVEC2F p2;
SFVEC2F p3;
float m_inv_denominator;
float m_p2y_minus_p3y;
float m_p3x_minus_p2x;
float m_p3y_minus_p1y;
float m_p1x_minus_p3x;
};
void ConvertPolygonToTriangles( const SHAPE_POLY_SET& aPolyList, CONTAINER_2D_BASE& aDstContainer,
float aBiuTo3dUnitsScale, const BOARD_ITEM& aBoardItem );
#endif // _TRIANGLE_2D_H_