kicad/libs/kimath/include/geometry/shape_segment.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2013 CERN
* Copyright (C) 2021-2022 KiCad Developers, see AUTHORS.txt for contributors.
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* @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
*
* 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 __SHAPE_SEGMENT_H
#define __SHAPE_SEGMENT_H
#include <geometry/seg.h>
#include <geometry/shape.h>
#include <math/box2.h>
#include <math/vector2d.h>
#include <trigo.h>
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#include <algorithm>
class SHAPE_SEGMENT : public SHAPE
{
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public:
SHAPE_SEGMENT() :
SHAPE( SH_SEGMENT ),
m_width( 0 )
{};
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SHAPE_SEGMENT( const VECTOR2I& aA, const VECTOR2I& aB, int aWidth = 0 ) :
SHAPE( SH_SEGMENT ),
m_seg( aA, aB ),
m_width( aWidth )
{};
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SHAPE_SEGMENT( const SEG& aSeg, int aWidth = 0 ) :
SHAPE( SH_SEGMENT ),
m_seg( aSeg ),
m_width( aWidth )
{};
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~SHAPE_SEGMENT() {};
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SHAPE* Clone() const override
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{
return new SHAPE_SEGMENT( m_seg, m_width );
}
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const BOX2I BBox( int aClearance = 0 ) const override
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{
return BOX2I( m_seg.A, m_seg.B - m_seg.A ).Inflate( aClearance + ( m_width + 1 ) / 2 );
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}
bool Collide( const SHAPE* aShape, int aClearance, VECTOR2I* aMTV ) const override
{
return SHAPE::Collide( aShape, aClearance, aMTV );
}
bool Collide( const SHAPE* aShape, int aClearance = 0, int* aActual = nullptr,
VECTOR2I* aLocation = nullptr ) const override
{
return SHAPE::Collide( aShape, aClearance, aActual, aLocation );
}
bool Collide( const SEG& aSeg, int aClearance = 0, int* aActual = nullptr,
VECTOR2I* aLocation = nullptr ) const override
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{
if( aSeg.A == aSeg.B )
return Collide( aSeg.A, aClearance, aActual, aLocation );
int min_dist = ( m_width + 1 ) / 2 + aClearance;
ecoord dist_sq = m_seg.SquaredDistance( aSeg );
if( dist_sq == 0 || dist_sq < SEG::Square( min_dist ) )
{
if( aLocation )
*aLocation = m_seg.NearestPoint( aSeg );
if( aActual )
*aActual = std::max( 0, (int) sqrt( dist_sq ) - ( m_width + 1 ) / 2 );
return true;
}
return false;
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}
bool Collide( const VECTOR2I& aP, int aClearance = 0, int* aActual = nullptr,
VECTOR2I* aLocation = nullptr ) const override
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{
int min_dist = ( m_width + 1 ) / 2 + aClearance;
ecoord dist_sq = m_seg.SquaredDistance( aP );
if( dist_sq == 0 || dist_sq < SEG::Square( min_dist ) )
{
if( aLocation )
*aLocation = m_seg.NearestPoint( aP );
if( aActual )
*aActual = std::max( 0, (int) sqrt( dist_sq ) - ( m_width + 1 ) / 2 );
return true;
}
return false;
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}
void SetSeg( const SEG& aSeg )
{
m_seg = aSeg;
}
const SEG& GetSeg() const
{
return m_seg;
}
void SetWidth( int aWidth )
{
m_width = aWidth;
}
int GetWidth() const
{
return m_width;
}
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bool IsSolid() const override
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{
return true;
}
void Rotate( const EDA_ANGLE& aAngle, const VECTOR2I& aCenter = { 0, 0 } ) override
{
RotatePoint( m_seg.A, aCenter, aAngle );
RotatePoint( m_seg.B, aCenter, aAngle );
}
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void Move( const VECTOR2I& aVector ) override
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{
m_seg.A += aVector;
m_seg.B += aVector;
}
virtual const std::string Format( ) const override;
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private:
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SEG m_seg;
int m_width;
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};
#endif