kicad/pcbnew/router/pns_solid.cpp

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/*
* KiRouter - a push-and-(sometimes-)shove PCB router
*
* Copyright (C) 2013-2014 CERN
* Copyright (C) 2016-2020 KiCad Developers, see AUTHORS.txt for contributors.
* Author: Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
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*
* 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 3 of the License, or (at your
* option) any later version.
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*
* 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.
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*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <math/vector2d.h>
#include <geometry/shape.h>
#include <geometry/shape_line_chain.h>
#include <geometry/shape_rect.h>
#include <geometry/shape_circle.h>
#include <geometry/shape_simple.h>
#include <geometry/shape_compound.h>
#include <geometry/shape_poly_set.h>
#include <wx/log.h>
#include "pns_router.h"
#include "pns_solid.h"
#include "pns_utils.h"
namespace PNS {
static const SHAPE_LINE_CHAIN buildHullForPrimitiveShape( const SHAPE* aShape, int aClearance,
int aWalkaroundThickness )
{
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int cl = aClearance + ( aWalkaroundThickness + 1 )/ 2;
switch( aShape->Type() )
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{
case SH_RECT:
{
const SHAPE_RECT* rect = static_cast<const SHAPE_RECT*>( aShape );
return OctagonalHull( rect->GetPosition(),
rect->GetSize(),
cl + 1,
0 );
}
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case SH_CIRCLE:
{
const SHAPE_CIRCLE* circle = static_cast<const SHAPE_CIRCLE*>( aShape );
int r = circle->GetRadius();
return OctagonalHull( circle->GetCenter() - VECTOR2I( r, r ),
VECTOR2I( 2 * r, 2 * r ),
cl + 1,
2.0 * ( 1.0 - M_SQRT1_2 ) * ( r + cl ) );
}
case SH_SEGMENT:
{
const SHAPE_SEGMENT* seg = static_cast<const SHAPE_SEGMENT*>( aShape );
return SegmentHull( *seg, aClearance, aWalkaroundThickness );
}
case SH_ARC:
{
const SHAPE_ARC* arc = static_cast<const SHAPE_ARC*>( aShape );
return ArcHull( *arc, aClearance, aWalkaroundThickness );
}
case SH_SIMPLE:
{
const SHAPE_SIMPLE* convex = static_cast<const SHAPE_SIMPLE*>( aShape );
return ConvexHull( *convex, cl );
}
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default:
{
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wxFAIL_MSG( wxString::Format( wxT( "Unsupported hull shape: %d (%s)." ),
aShape->Type(),
SHAPE_TYPE_asString( aShape->Type() ) ) );
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break;
}
}
return SHAPE_LINE_CHAIN();
}
const SHAPE_LINE_CHAIN SOLID::Hull( int aClearance, int aWalkaroundThickness, int aLayer ) const
{
if( !ROUTER::GetInstance()->GetInterface()->IsFlashedOnLayer( this, aLayer ) )
return HoleHull( aClearance, aWalkaroundThickness, aLayer );
if( !m_shape )
return SHAPE_LINE_CHAIN();
if( m_shape->Type() == SH_COMPOUND )
{
SHAPE_COMPOUND* cmpnd = static_cast<SHAPE_COMPOUND*>( m_shape );
if ( cmpnd->Shapes().size() == 1 )
{
return buildHullForPrimitiveShape( cmpnd->Shapes()[0], aClearance,
aWalkaroundThickness );
}
else
{
SHAPE_POLY_SET hullSet;
for( SHAPE* shape : cmpnd->Shapes() )
{
hullSet.AddOutline( buildHullForPrimitiveShape( shape, aClearance,
aWalkaroundThickness ) );
}
hullSet.Simplify( SHAPE_POLY_SET::PM_STRICTLY_SIMPLE );
return hullSet.Outline( 0 );
}
}
else
{
return buildHullForPrimitiveShape( m_shape, aClearance, aWalkaroundThickness );
}
}
const SHAPE_LINE_CHAIN SOLID::HoleHull( int aClearance, int aWalkaroundThickness, int aLayer ) const
{
if( !m_hole )
return SHAPE_LINE_CHAIN();
if( m_hole->Type() == SH_COMPOUND )
{
SHAPE_COMPOUND* cmpnd = static_cast<SHAPE_COMPOUND*>( m_hole );
if ( cmpnd->Shapes().size() == 1 )
{
return buildHullForPrimitiveShape( cmpnd->Shapes()[0], aClearance,
aWalkaroundThickness );
}
else
{
SHAPE_POLY_SET hullSet;
for( SHAPE* shape : cmpnd->Shapes() )
{
hullSet.AddOutline( buildHullForPrimitiveShape( shape, aClearance,
aWalkaroundThickness ) );
}
hullSet.Simplify( SHAPE_POLY_SET::PM_STRICTLY_SIMPLE );
return hullSet.Outline( 0 );
}
}
else
{
return buildHullForPrimitiveShape( m_hole, aClearance, aWalkaroundThickness );
}
}
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ITEM* SOLID::Clone() const
{
ITEM* solid = new SOLID( *this );
return solid;
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}
void SOLID::SetPos( const VECTOR2I& aCenter )
{
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VECTOR2I delta = aCenter - m_pos;
if( m_shape )
m_shape->Move( delta );
if( m_hole )
m_hole->Move( delta );
m_pos = aCenter;
}
}