create_layer_poly.cpp

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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) 1992-2022 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
 */
 
#include "board_adapter.h"
#include <board_design_settings.h>
#include <convert_basic_shapes_to_polygon.h>
#include <fp_shape.h>
#include <footprint.h>
 
 
/*
 * This is used to draw pad outlines on silk layers.
 */
void BOARD_ADAPTER::buildPadOutlineAsPolygon( const PAD* aPad, SHAPE_POLY_SET& aBuffer,
 int aWidth ) const
{
 int maxError = m_board->GetDesignSettings().m_MaxError;
 
 if( aPad->GetShape() == PAD_SHAPE::CIRCLE ) // Draw a ring
 {
 TransformRingToPolygon( aBuffer, aPad->ShapePos(), aPad->GetSize().x / 2, aWidth, maxError,
 ERROR_INSIDE );
 return;
 }
 
 // For other shapes, add outlines as thick segments in polygon buffer
 const std::shared_ptr<SHAPE_POLY_SET>& corners = aPad->GetEffectivePolygon();
 const SHAPE_LINE_CHAIN& path = corners->COutline( 0 );
 
 for( int ii = 0; ii < path.PointCount(); ++ii )
 {
 const VECTOR2I& a = path.CPoint( ii );
 const VECTOR2I& b = path.CPoint( ii + 1 );
 
 TransformOvalToPolygon( aBuffer, a, b, aWidth, maxError, ERROR_INSIDE );
 }
}
 
 
void BOARD_ADAPTER::transformFPShapesToPolySet( const FOOTPRINT* aFootprint, PCB_LAYER_ID aLayer,
 SHAPE_POLY_SET& aBuffer ) const
{
 int maxError = m_board->GetDesignSettings().m_MaxError;
 
 for( BOARD_ITEM* item : aFootprint->GraphicalItems() )
 {
 if( item->Type() == PCB_FP_SHAPE_T )
 {
 FP_SHAPE* shape = static_cast<FP_SHAPE*>( item );
 
 if( shape->GetLayer() == aLayer )
 shape->TransformShapeToPolygon( aBuffer, aLayer, 0, maxError, ERROR_INSIDE );
 }
 else if( BaseType( item->Type() ) == PCB_DIMENSION_T )
 {
 PCB_DIMENSION_BASE* dimension = static_cast<PCB_DIMENSION_BASE*>( item );
 
 if( dimension->GetLayer() == aLayer )
 dimension->TransformShapeToPolygon( aBuffer, aLayer, 0, maxError, ERROR_INSIDE );
 }
 }
}