create_3Dgraphic_brd_items.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) 2023 CERN
 * Copyright (C) 1992-2023 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 "../3d_rendering/raytracing/shapes2D/ring_2d.h"
#include "../3d_rendering/raytracing/shapes2D/filled_circle_2d.h"
#include "../3d_rendering/raytracing/shapes2D/round_segment_2d.h"
#include "../3d_rendering/raytracing/shapes2D/triangle_2d.h"
#include <board_adapter.h>
#include <footprint.h>
#include <pad.h>
#include <pcb_text.h>
#include <pcb_textbox.h>
#include <board_design_settings.h>
#include <pcb_painter.h> // for PCB_RENDER_SETTINGS
#include <zone.h>
#include <convert_basic_shapes_to_polygon.h>
#include <trigo.h>
#include <geometry/shape_segment.h>
#include <geometry/geometry_utils.h>
#include <geometry/shape_circle.h>
#include <geometry/shape_rect.h>
#include <geometry/shape_simple.h>
#include <utility>
#include <vector>
#include <wx/log.h>
#include <macros.h>
#include <callback_gal.h>
 
 
#define TO_3DU( x ) ( ( x ) * m_biuTo3Dunits )
 
#define TO_SFVEC2F( vec ) SFVEC2F( TO_3DU( vec.x ), TO_3DU( -vec.y ) )
 
 
void addFILLED_CIRCLE_2D( CONTAINER_2D_BASE* aContainer, const SFVEC2F& aCenter, float aRadius,
 const BOARD_ITEM& aBoardItem )
{
 if( aRadius > 0.0f )
 aContainer->Add( new FILLED_CIRCLE_2D( aCenter, aRadius, aBoardItem ) );
}
 
 
void addRING_2D( CONTAINER_2D_BASE* aContainer, const SFVEC2F& aCenter, float aInnerRadius,
 float aOuterRadius, const BOARD_ITEM& aBoardItem )
{
 if( aOuterRadius > aInnerRadius && aInnerRadius > 0.0f )
 aContainer->Add( new RING_2D( aCenter, aInnerRadius, aOuterRadius, aBoardItem ) );
}
 
 
void addROUND_SEGMENT_2D( CONTAINER_2D_BASE* aContainer, const SFVEC2F& aStart, const SFVEC2F& aEnd,
 float aWidth, const BOARD_ITEM& aBoardItem )
{
 if( Is_segment_a_circle( aStart, aEnd ) )
 {
 // Cannot add segments that have the same start and end point
 addFILLED_CIRCLE_2D( aContainer, aStart, aWidth / 2, aBoardItem );
 return;
 }
 
 if( aWidth > 0.0f )
 aContainer->Add( new ROUND_SEGMENT_2D( aStart, aEnd, aWidth, aBoardItem ) );
}
 
 
void BOARD_ADAPTER::addText( const EDA_TEXT* aText, CONTAINER_2D_BASE* aContainer,
 const BOARD_ITEM* aOwner )
{
 KIGFX::GAL_DISPLAY_OPTIONS empty_opts;
 TEXT_ATTRIBUTES attrs = aText->GetAttributes();
 float penWidth_3DU = TO_3DU( aText->GetEffectiveTextPenWidth() );
 KIFONT::FONT* font = aText->GetFont();
 
 if( !font )
 font = KIFONT::FONT::GetFont( wxEmptyString, aText->IsBold(), aText->IsItalic() );
 
 if( aOwner && aOwner->IsKnockout() )
 {
 SHAPE_POLY_SET finalPoly;
 const PCB_TEXT* pcbText = static_cast<const PCB_TEXT*>( aOwner );
 
 pcbText->TransformTextToPolySet( finalPoly, 0, m_board->GetDesignSettings().m_MaxError,
 ERROR_INSIDE );
 
 // Do not call finalPoly.Fracture() here: ConvertPolygonToTriangles() call it
 // if needed, and Fracture() called twice can create bad results and is useless
 ConvertPolygonToTriangles( finalPoly, *aContainer, m_biuTo3Dunits, *aOwner );
 }
 else
 {
 CALLBACK_GAL callback_gal( empty_opts,
 // Stroke callback
 [&]( const VECTOR2I& aPt1, const VECTOR2I& aPt2 )
 {
 addROUND_SEGMENT_2D( aContainer, TO_SFVEC2F( aPt1 ), TO_SFVEC2F( aPt2 ),
 penWidth_3DU, *aOwner );
 },
 // Triangulation callback
 [&]( const VECTOR2I& aPt1, const VECTOR2I& aPt2, const VECTOR2I& aPt3 )
 {
 aContainer->Add( new TRIANGLE_2D( TO_SFVEC2F( aPt1 ), TO_SFVEC2F( aPt2 ),
 TO_SFVEC2F( aPt3 ), *aOwner ) );
 } );
 
 attrs.m_Angle = aText->GetDrawRotation();
 
 font->Draw( &callback_gal, aText->GetShownText( true ), aText->GetDrawPos(), attrs,
 aOwner->GetFontMetrics() );
 }
}
 
 
void BOARD_ADAPTER::addShape( const PCB_DIMENSION_BASE* aDimension, CONTAINER_2D_BASE* aContainer,
 const BOARD_ITEM* aOwner )
{
 addText( aDimension, aContainer, aDimension );
 
 const int linewidth = aDimension->GetLineThickness();
 
 for( const std::shared_ptr<SHAPE>& shape : aDimension->GetShapes() )
 {
 switch( shape->Type() )
 {
 case SH_SEGMENT:
 {
 const SEG& seg = static_cast<const SHAPE_SEGMENT*>( shape.get() )->GetSeg();
 
 addROUND_SEGMENT_2D( aContainer, TO_SFVEC2F( seg.A ), TO_SFVEC2F( seg.B ),
 TO_3DU( linewidth ), *aOwner );
 break;
 }
 
 case SH_CIRCLE:
 {
 int radius = static_cast<const SHAPE_CIRCLE*>( shape.get() )->GetRadius();
 float innerR3DU = TO_3DU( radius ) - TO_3DU( aDimension->GetLineThickness() ) / 2.0f;
 float outerR3DU = TO_3DU( radius ) + TO_3DU( aDimension->GetLineThickness() ) / 2.0f;
 
 addRING_2D( aContainer, TO_SFVEC2F( shape->Centre() ), innerR3DU, outerR3DU, *aOwner );
 
 break;
 }
 
 default:
 break;
 }
 }
}
 
 
void BOARD_ADAPTER::addFootprintShapes( const FOOTPRINT* aFootprint, CONTAINER_2D_BASE* aContainer,
 PCB_LAYER_ID aLayerId,
 const std::bitset<LAYER_3D_END>& aVisibilityFlags )
{
 KIGFX::GAL_DISPLAY_OPTIONS empty_opts;
 
 for( PCB_FIELD* field : aFootprint->GetFields() )
 {
 if( field->GetLayer() == aLayerId && field->IsVisible() )
 {
 if( !aVisibilityFlags.test( LAYER_FP_TEXT ) )
 continue;
 else if( field->IsReference() && !aVisibilityFlags.test( LAYER_FP_REFERENCES ) )
 continue;
 else if( field->IsValue() && !aVisibilityFlags.test( LAYER_FP_VALUES ) )
 continue;
 
 addText( field, aContainer, field );
 }
 }
 
 for( BOARD_ITEM* item : aFootprint->GraphicalItems() )
 {
 switch( item->Type() )
 {
 case PCB_TEXT_T:
 {
 PCB_TEXT* text = static_cast<PCB_TEXT*>( item );
 
 if( text->GetLayer() == aLayerId && text->IsVisible() )
 {
 if( !aVisibilityFlags.test( LAYER_FP_TEXT ) )
 continue;
 else if( text->GetText() == wxT( "${REFERENCE}" ) && !aVisibilityFlags.test( LAYER_FP_REFERENCES ) )
 continue;
 else if( text->GetText() == wxT( "${VALUE}" ) && !aVisibilityFlags.test( LAYER_FP_VALUES ) )
 continue;
 
 addText( text, aContainer, text );
 }
 
 break;
 }
 
 case PCB_TEXTBOX_T:
 {
 PCB_TEXTBOX* textbox = static_cast<PCB_TEXTBOX*>( item );
 
 if( textbox->GetLayer() == aLayerId )
 {
 if( textbox->IsBorderEnabled() )
 addShape( textbox, aContainer, aFootprint );
 
 addText( textbox, aContainer, aFootprint );
 }
 
 break;
 }
 
 case PCB_DIM_ALIGNED_T:
 case PCB_DIM_CENTER_T:
 case PCB_DIM_ORTHOGONAL_T:
 case PCB_DIM_RADIAL_T:
 case PCB_DIM_LEADER_T:
 {
 PCB_DIMENSION_BASE* dimension = static_cast<PCB_DIMENSION_BASE*>( item );
 
 if( dimension->GetLayer() == aLayerId )
 addShape( dimension, aContainer, aFootprint );
 
 break;
 }
 
 case PCB_SHAPE_T:
 {
 PCB_SHAPE* shape = static_cast<PCB_SHAPE*>( item );
 
 if( shape->GetLayer() == aLayerId )
 addShape( shape, aContainer, aFootprint );
 
 break;
 }
 
 default:
 break;
 }
 }
}
 
 
void BOARD_ADAPTER::createViaWithMargin( const PCB_TRACK* aTrack, CONTAINER_2D_BASE* aDstContainer,
 int aMargin )
{
 SFVEC2F start3DU = TO_SFVEC2F( aTrack->GetStart() );
 SFVEC2F end3DU = TO_SFVEC2F( aTrack->GetEnd() );
 const float radius3DU = TO_3DU( ( aTrack->GetWidth() / 2.0 ) + aMargin );
 
 addFILLED_CIRCLE_2D( aDstContainer, start3DU, radius3DU, *aTrack );
}
 
 
void BOARD_ADAPTER::createTrack( const PCB_TRACK* aTrack, CONTAINER_2D_BASE* aDstContainer )
{
 SFVEC2F start3DU = TO_SFVEC2F( aTrack->GetStart() );
 SFVEC2F end3DU = TO_SFVEC2F( aTrack->GetEnd() );
 
 switch( aTrack->Type() )
 {
 case PCB_VIA_T:
 addFILLED_CIRCLE_2D( aDstContainer, start3DU, TO_3DU( aTrack->GetWidth() / 2.0 ), *aTrack );
 break;
 
 case PCB_ARC_T:
 {
 const PCB_ARC* arc = static_cast<const PCB_ARC*>( aTrack );
 
 if( arc->IsDegenerated() )
 {
 // Draw this very small arc like a track segment (a PCB_TRACE_T)
 PCB_TRACK track( arc->GetParent() );
 track.SetStart( arc->GetStart() );
 track.SetEnd( arc->GetEnd() );
 track.SetWidth( arc->GetWidth() );
 track.SetLayer( arc->GetLayer() );
 
 createTrack( &track, aDstContainer );
 return;
 }
 
 VECTOR2I center( arc->GetCenter() );
 EDA_ANGLE arc_angle = arc->GetAngle();
 double radius = arc->GetRadius();
 int arcsegcount = GetArcToSegmentCount( KiROUND( radius ), ARC_HIGH_DEF, arc_angle );
 int circlesegcount;
 
 // Avoid arcs that cannot be drawn
 if( radius < std::numeric_limits<double>::min() || arc_angle.IsZero() )
 break;
 
 // We need a circle to segment count. However, the arc angle can be small, and the
 // radius very big. so we calculate a reasonable value for circlesegcount.
 if( arcsegcount <= 1 ) // The arc will be approximated by a segment
 {
 circlesegcount = 1;
 }
 else
 {
 circlesegcount = KiROUND( arcsegcount * 360.0 / std::abs( arc_angle.AsDegrees() ) );
 circlesegcount = alg::clamp( 1, circlesegcount, 128 );
 }
 
 createArcSegments( center, arc->GetStart(), arc_angle, circlesegcount, arc->GetWidth(),
 aDstContainer, *arc );
 break;
 }
 
 case PCB_TRACE_T: // Track is a usual straight segment
 {
 addROUND_SEGMENT_2D( aDstContainer, start3DU, end3DU, TO_3DU( aTrack->GetWidth() ), *aTrack );
 break;
 }
 
 default:
 break;
 }
}
 
 
void BOARD_ADAPTER::createPadWithMargin( const PAD* aPad, CONTAINER_2D_BASE* aContainer,
 PCB_LAYER_ID aLayer, const VECTOR2I& aMargin ) const
{
 SHAPE_POLY_SET poly;
 int maxError = GetBoard()->GetDesignSettings().m_MaxError;
 VECTOR2I clearance = aMargin;
 
 // Our shape-based builder can't handle negative or differing x:y clearance values (the
 // former are common for solder paste while the later get generated when a relative paste
 // margin is used with an oblong pad). So we apply this huge hack and fake a larger pad to
 // run the general-purpose polygon builder on.
 // Of course being a hack it falls down when dealing with custom shape pads (where the size
 // is only the size of the anchor), so for those we punt and just use aMargin.x.
 
 if( ( clearance.x < 0 || clearance.x != clearance.y )
 && aPad->GetShape() != PAD_SHAPE::CUSTOM )
 {
 VECTOR2I dummySize = VECTOR2I( aPad->GetSize() ) + clearance + clearance;
 
 if( dummySize.x <= 0 || dummySize.y <= 0 )
 return;
 
 PAD dummy( *aPad );
 dummy.SetSize( VECTOR2I( dummySize.x, dummySize.y ) );
 dummy.TransformShapeToPolygon( poly, aLayer, 0, maxError, ERROR_INSIDE );
 clearance = { 0, 0 };
 
 // Remove group membership from dummy item before deleting
 dummy.SetParentGroup( nullptr );
 }
 else
 {
 auto padShapes = std::static_pointer_cast<SHAPE_COMPOUND>( aPad->GetEffectiveShape() );
 
 for( const SHAPE* shape : padShapes->Shapes() )
 {
 switch( shape->Type() )
 {
 case SH_SEGMENT:
 {
 const SHAPE_SEGMENT* seg = static_cast<const SHAPE_SEGMENT*>( shape );
 
 addROUND_SEGMENT_2D( aContainer,
 TO_SFVEC2F( seg->GetSeg().A ),
 TO_SFVEC2F( seg->GetSeg().B ),
 TO_3DU( seg->GetWidth() + clearance.x * 2 ),
 *aPad );
 break;
 }
 
 case SH_CIRCLE:
 {
 const SHAPE_CIRCLE* circle = static_cast<const SHAPE_CIRCLE*>( shape );
 
 addFILLED_CIRCLE_2D( aContainer,
 TO_SFVEC2F( circle->GetCenter() ),
 TO_3DU( circle->GetRadius() + clearance.x ),
 *aPad );
 break;
 }
 
 case SH_RECT:
 {
 const SHAPE_RECT* rect = static_cast<const SHAPE_RECT*>( shape );
 
 poly.NewOutline();
 poly.Append( rect->GetPosition() );
 poly.Append( rect->GetPosition().x + rect->GetSize().x, rect->GetPosition().y );
 poly.Append( rect->GetPosition() + rect->GetSize() );
 poly.Append( rect->GetPosition().x, rect->GetPosition().y + rect->GetSize().y );
 break;
 }
 
 case SH_SIMPLE:
 poly.AddOutline( static_cast<const SHAPE_SIMPLE*>( shape )->Vertices() );
 break;
 
 case SH_POLY_SET:
 poly = *(SHAPE_POLY_SET*) shape;
 break;
 
 case SH_ARC:
 {
 const SHAPE_ARC* arc = static_cast<const SHAPE_ARC*>( shape );
 SHAPE_LINE_CHAIN l = arc->ConvertToPolyline( maxError );
 
 for( int i = 0; i < l.SegmentCount(); i++ )
 {
 SHAPE_SEGMENT seg( l.Segment( i ).A, l.Segment( i ).B, arc->GetWidth() );
 
 addROUND_SEGMENT_2D( aContainer,
 TO_SFVEC2F( seg.GetSeg().A ),
 TO_SFVEC2F( seg.GetSeg().B ),
 TO_3DU( arc->GetWidth() + clearance.x * 2 ),
 *aPad );
 }
 
 break;
 }
 
 default:
 UNIMPLEMENTED_FOR( SHAPE_TYPE_asString( shape->Type() ) );
 break;
 }
 }
 }
 
 if( !poly.IsEmpty() )
 {
 if( clearance.x )
 poly.Inflate( clearance.x, SHAPE_POLY_SET::ROUND_ALL_CORNERS, maxError );
 
 // Add the PAD polygon
 ConvertPolygonToTriangles( poly, *aContainer, m_biuTo3Dunits, *aPad );
 }
}
 
 
void BOARD_ADAPTER::createPadWithHole( const PAD* aPad, CONTAINER_2D_BASE* aDstContainer,
 int aInflateValue )
{
 if( !aPad->HasHole() )
 {
 wxLogTrace( m_logTrace, wxT( "BOARD_ADAPTER::createPadWithHole - found an invalid pad" ) );
 return;
 }
 
 std::shared_ptr<SHAPE_SEGMENT> slot = aPad->GetEffectiveHoleShape();
 
 addROUND_SEGMENT_2D( aDstContainer,
 TO_SFVEC2F( slot->GetSeg().A ),
 TO_SFVEC2F( slot->GetSeg().B ),
 TO_3DU( slot->GetWidth() + aInflateValue * 2 ),
 *aPad );
}
 
 
void BOARD_ADAPTER::addPads( const FOOTPRINT* aFootprint, CONTAINER_2D_BASE* aContainer,
 PCB_LAYER_ID aLayerId, bool aSkipPlatedPads, bool aSkipNonPlatedPads )
{
 for( PAD* pad : aFootprint->Pads() )
 {
 if( !pad->IsOnLayer( aLayerId ) )
 continue;
 
 if( IsCopperLayer( aLayerId ) )
 {
 // Skip pad annulus when there isn't one (note: this is more discerning than
 // pad->IsOnLayer(), which doesn't check for NPTH pads with holes that consume
 // the entire pad).
 if( !pad->IsOnCopperLayer() )
 continue;
 
 // Skip pad annulus when not connected on this layer (if removing is enabled)
 if( !pad->FlashLayer( aLayerId ) )
 continue;
 }
 
 VECTOR2I margin( 0, 0 );
 
 switch( aLayerId )
 {
 case F_Cu:
 if( aSkipPlatedPads && pad->FlashLayer( F_Mask ) )
 continue;
 
 if( aSkipNonPlatedPads && !pad->FlashLayer( F_Mask ) )
 continue;
 
 break;
 
 case B_Cu:
 if( aSkipPlatedPads && pad->FlashLayer( B_Mask ) )
 continue;
 
 if( aSkipNonPlatedPads && !pad->FlashLayer( B_Mask ) )
 continue;
 
 break;
 
 case F_Mask:
 case B_Mask:
 margin.x += pad->GetSolderMaskExpansion();
 margin.y += pad->GetSolderMaskExpansion();
 break;
 
 case F_Paste:
 case B_Paste:
 margin += pad->GetSolderPasteMargin();
 break;
 
 default:
 break;
 }
 
 createPadWithMargin( pad, aContainer, aLayerId, margin );
 }
}
 
 
// based on TransformArcToPolygon function from
// common/convert_basic_shapes_to_polygon.cpp
void BOARD_ADAPTER::createArcSegments( const VECTOR2I& aCentre, const VECTOR2I& aStart,
 const EDA_ANGLE& aArcAngle, int aCircleToSegmentsCount,
 int aWidth, CONTAINER_2D_BASE* aContainer,
 const BOARD_ITEM& aOwner )
{
 // Don't attempt to render degenerate shapes
 if( aWidth == 0 )
 return;
 
 VECTOR2I arc_start, arc_end;
 EDA_ANGLE arcAngle( aArcAngle );
 EDA_ANGLE delta = ANGLE_360 / aCircleToSegmentsCount; // rotate angle
 
 arc_end = arc_start = aStart;
 
 if( arcAngle != ANGLE_360 )
 RotatePoint( arc_end, aCentre, -arcAngle );
 
 if( arcAngle < ANGLE_0 )
 {
 std::swap( arc_start, arc_end );
 arcAngle = -arcAngle;
 }
 
 // Compute the ends of segments and creates poly
 VECTOR2I curr_end = arc_start;
 VECTOR2I curr_start = arc_start;
 
 for( EDA_ANGLE ii = delta; ii < arcAngle; ii += delta )
 {
 curr_end = arc_start;
 RotatePoint( curr_end, aCentre, -ii );
 
 addROUND_SEGMENT_2D( aContainer, TO_SFVEC2F( curr_start ), TO_SFVEC2F( curr_end ),
 TO_3DU( aWidth ), aOwner );
 
 curr_start = curr_end;
 }
 
 if( curr_end != arc_end )
 {
 addROUND_SEGMENT_2D( aContainer, TO_SFVEC2F( curr_end ), TO_SFVEC2F( arc_end ),
 TO_3DU( aWidth ), aOwner );
 }
}
 
 
void BOARD_ADAPTER::addShape( const PCB_SHAPE* aShape, CONTAINER_2D_BASE* aContainer,
 const BOARD_ITEM* aOwner )
{
 // The full width of the lines to create
 const float linewidth3DU = TO_3DU( aShape->GetWidth() );
 PLOT_DASH_TYPE lineStyle = aShape->GetStroke().GetPlotStyle();
 
 if( lineStyle <= PLOT_DASH_TYPE::FIRST_TYPE )
 {
 switch( aShape->GetShape() )
 {
 case SHAPE_T::CIRCLE:
 {
 SFVEC2F center3DU = TO_SFVEC2F( aShape->GetCenter() );
 float innerR3DU = TO_3DU( aShape->GetRadius() ) - linewidth3DU / 2.0;
 float outerR3DU = TO_3DU( aShape->GetRadius() ) + linewidth3DU / 2.0;
 
 if( aShape->IsFilled() )
 addFILLED_CIRCLE_2D( aContainer, center3DU, outerR3DU, *aOwner );
 else
 addRING_2D( aContainer, center3DU, innerR3DU, outerR3DU, *aOwner );
 
 break;
 }
 
 case SHAPE_T::RECTANGLE:
 if( aShape->IsFilled() )
 {
 SHAPE_POLY_SET polyList;
 
 aShape->TransformShapeToPolygon( polyList, UNDEFINED_LAYER, 0, ARC_HIGH_DEF,
 ERROR_INSIDE );
 
 polyList.Simplify( SHAPE_POLY_SET::PM_FAST );
 
 ConvertPolygonToTriangles( polyList, *aContainer, m_biuTo3Dunits, *aOwner );
 }
 else
 {
 std::vector<VECTOR2I> pts = aShape->GetRectCorners();
 
 addROUND_SEGMENT_2D( aContainer, TO_SFVEC2F( pts[0] ), TO_SFVEC2F( pts[1] ),
 linewidth3DU, *aOwner );
 addROUND_SEGMENT_2D( aContainer, TO_SFVEC2F( pts[1] ), TO_SFVEC2F( pts[2] ),
 linewidth3DU, *aOwner );
 addROUND_SEGMENT_2D( aContainer, TO_SFVEC2F( pts[2] ), TO_SFVEC2F( pts[3] ),
 linewidth3DU, *aOwner );
 addROUND_SEGMENT_2D( aContainer, TO_SFVEC2F( pts[3] ), TO_SFVEC2F( pts[0] ),
 linewidth3DU, *aOwner );
 }
 break;
 
 case SHAPE_T::ARC:
 {
 unsigned int segCount = GetCircleSegmentCount( aShape->GetBoundingBox().GetSizeMax() );
 
 createArcSegments( aShape->GetCenter(), aShape->GetStart(), aShape->GetArcAngle(),
 segCount, aShape->GetWidth(), aContainer, *aOwner );
 break;
 }
 
 case SHAPE_T::SEGMENT:
 addROUND_SEGMENT_2D( aContainer, TO_SFVEC2F( aShape->GetStart() ),
 TO_SFVEC2F( aShape->GetEnd() ), linewidth3DU, *aOwner );
 break;
 
 case SHAPE_T::BEZIER:
 case SHAPE_T::POLY:
 {
 SHAPE_POLY_SET polyList;
 
 aShape->TransformShapeToPolygon( polyList, UNDEFINED_LAYER, 0, ARC_HIGH_DEF,
 ERROR_INSIDE );
 
 // Some polygons can be a bit complex (especially when coming from a
 // picture ot a text converted to a polygon
 // So call Simplify before calling ConvertPolygonToTriangles, just in case.
 polyList.Simplify( SHAPE_POLY_SET::PM_FAST );
 
 if( polyList.IsEmpty() ) // Just for caution
 break;
 
 ConvertPolygonToTriangles( polyList, *aContainer, m_biuTo3Dunits, *aOwner );
 break;
 }
 
 default:
 wxFAIL_MSG( wxT( "BOARD_ADAPTER::addShape no implementation for " )
 + aShape->SHAPE_T_asString() );
 break;
 }
 }
 else
 {
 std::vector<SHAPE*> shapes = aShape->MakeEffectiveShapes( true );
 SFVEC2F a3DU;
 SFVEC2F b3DU;
 
 const PCB_PLOT_PARAMS& plotParams = aShape->GetBoard()->GetPlotOptions();
 KIGFX::PCB_RENDER_SETTINGS renderSettings;
 
 renderSettings.SetDashLengthRatio( plotParams.GetDashedLineDashRatio() );
 renderSettings.SetGapLengthRatio( plotParams.GetDashedLineGapRatio() );
 
 for( SHAPE* shape : shapes )
 {
 STROKE_PARAMS::Stroke( shape, lineStyle, aShape->GetWidth(), &renderSettings,
 [&]( const VECTOR2I& a, const VECTOR2I& b )
 {
 addROUND_SEGMENT_2D( aContainer, TO_SFVEC2F( a ), TO_SFVEC2F( b ),
 linewidth3DU, *aOwner );
 } );
 }
 
 for( SHAPE* shape : shapes )
 delete shape;
 }
}
 
 
void BOARD_ADAPTER::addSolidAreasShapes( const ZONE* aZone, CONTAINER_2D_BASE* aContainer,
 PCB_LAYER_ID aLayerId )
{
 // This convert the poly in outline and holes
 ConvertPolygonToTriangles( *aZone->GetFilledPolysList( aLayerId ), *aContainer, m_biuTo3Dunits,
 *aZone );
}
 
 
void BOARD_ADAPTER::buildPadOutlineAsSegments( const PAD* aPad, CONTAINER_2D_BASE* aContainer,
 int aWidth )
{
 if( aPad->GetShape() == PAD_SHAPE::CIRCLE ) // Draw a ring
 {
 const SFVEC2F center3DU = TO_SFVEC2F( aPad->ShapePos() );
 const int radius = aPad->GetSize().x / 2;
 const float inner_radius3DU = TO_3DU( radius - aWidth / 2.0 );
 const float outer_radius3DU = TO_3DU( radius + aWidth / 2.0 );
 
 addRING_2D( aContainer, center3DU, inner_radius3DU, outer_radius3DU, *aPad );
 }
 else
 {
 // 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 j = 0; j < path.PointCount(); j++ )
 {
 SFVEC2F start3DU = TO_SFVEC2F( path.CPoint( j ) );
 SFVEC2F end3DU = TO_SFVEC2F( path.CPoint( j + 1 ) );
 
 addROUND_SEGMENT_2D( aContainer, start3DU, end3DU, TO_3DU( aWidth ), *aPad );
 }
 }
}