void MODULE::TransformPadsShapesWithClearanceToPolygon( PCB_LAYER_ID aLayer,
        SHAPE_POLY_SET& aCornerBuffer, int aInflateValue, int aMaxError,
        bool aSkipNPTHPadsWihNoCopper ) const
{
    D_PAD* pad = PadsList();

    wxSize margin;
    for( ; pad != NULL; pad = pad->Next() )
    {
        if( aLayer != UNDEFINED_LAYER && !pad->IsOnLayer(aLayer) )
            continue;

        // NPTH pads are not drawn on layers if the shape size and pos is the same
        // as their hole:
        if( aSkipNPTHPadsWihNoCopper && pad->GetAttribute() == PAD_ATTRIB_HOLE_NOT_PLATED )
        {
            if( pad->GetDrillSize() == pad->GetSize() && pad->GetOffset() == wxPoint( 0, 0 ) )
            {
                switch( pad->GetShape() )
                {
                case PAD_SHAPE_CIRCLE:
                    if( pad->GetDrillShape() == PAD_DRILL_SHAPE_CIRCLE )
                        continue;
                    break;

                case PAD_SHAPE_OVAL:
                    if( pad->GetDrillShape() != PAD_DRILL_SHAPE_CIRCLE )
                        continue;
                    break;

                default:
                    break;
                }
            }
        }

        switch( aLayer )
        {
        case F_Mask:
        case B_Mask:
            margin.x = margin.y = pad->GetSolderMaskMargin() + aInflateValue;
            break;

        case F_Paste:
        case B_Paste:
            margin = pad->GetSolderPasteMargin();
            margin.x += aInflateValue;
            margin.y += aInflateValue;
            break;

        default:
            margin.x = margin.y = aInflateValue;
            break;
        }

        pad->BuildPadShapePolygon( aCornerBuffer, margin );
    }
}
/* generate pads shapes on layer aLayer as polygons,
 * and adds these polygons to aCornerBuffer
 * aCornerBuffer = the buffer to store polygons
 * aInflateValue = an additionnal size to add to pad shapes
 * aCircleToSegmentsCount = number of segments to approximate a circle
 * aCorrectionFactor = the correction to apply to a circle radius
 *  to generate the polygon.
 *  if aCorrectionFactor = 1.0, the polygon is inside the circle
 *  the radius of circle approximated by segments is
 *  initial radius * aCorrectionFactor
 */
void MODULE::TransformPadsShapesWithClearanceToPolygon( LAYER_NUM aLayer,
                        CPOLYGONS_LIST& aCornerBuffer,
                        int                    aInflateValue,
                        int                    aCircleToSegmentsCount,
                        double                 aCorrectionFactor )
{
    D_PAD* pad = Pads();

    wxSize margin;
    for( ; pad != NULL; pad = pad->Next() )
    {
        if( !pad->IsOnLayer(aLayer) )
            continue;


        switch( aLayer )
        {
        case SOLDERMASK_N_FRONT:
        case SOLDERMASK_N_BACK:
            margin.x = margin.y = pad->GetSolderMaskMargin() + aInflateValue;
            break;

        case SOLDERPASTE_N_FRONT:
        case SOLDERPASTE_N_BACK:
            margin = pad->GetSolderPasteMargin();
            margin.x += aInflateValue;
            margin.y += aInflateValue;
            break;

        default:
            margin.x = margin.y = aInflateValue;
            break;
        }

        pad->BuildPadShapePolygon( aCornerBuffer, margin,
                                   aCircleToSegmentsCount, aCorrectionFactor );
    }
}
/* Plot a copper layer or mask.
 * Silk screen layers are not plotted here.
 */
void PlotStandardLayer( BOARD *aBoard, PLOTTER* aPlotter,
                        LAYER_MSK aLayerMask, const PCB_PLOT_PARAMS& aPlotOpt )
{

    BRDITEMS_PLOTTER itemplotter( aPlotter, aBoard, aPlotOpt );
    itemplotter.SetLayerMask( aLayerMask );

    EDA_DRAW_MODE_T plotMode = aPlotOpt.GetMode();

     // Plot edge layer and graphic items
    itemplotter.PlotBoardGraphicItems();

    // Draw footprint shapes without pads (pads will plotted later)
    // We plot here module texts, but they are usually on silkscreen layer,
    // so they are not plot here but plot by PlotSilkScreen()
    // Plot footprints fields (ref, value ...)
    for( MODULE* module = aBoard->m_Modules;  module;  module = module->Next() )
    {
        if( ! itemplotter.PlotAllTextsModule( module ) )
        {
            wxLogMessage( _( "Your BOARD has a bad layer number for module %s" ),
                           GetChars( module->GetReference() ) );
        }
    }

    for( MODULE* module = aBoard->m_Modules;  module;  module = module->Next() )
    {
        for( BOARD_ITEM* item = module->GraphicalItems(); item; item = item->Next() )
        {
            if( ! (aLayerMask & GetLayerMask( item->GetLayer() ) ) )
                continue;

            switch( item->Type() )
            {
            case PCB_MODULE_EDGE_T:
                itemplotter.Plot_1_EdgeModule( (EDGE_MODULE*) item );
                break;

            default:
                break;
            }
        }
    }

    // Plot footprint pads
    for( MODULE* module = aBoard->m_Modules;  module;  module = module->Next() )
    {
        for( D_PAD* pad = module->Pads();  pad;  pad = pad->Next() )
        {
            if( (pad->GetLayerMask() & aLayerMask) == 0 )
                continue;

            wxSize margin;
            double width_adj = 0;

            if( aLayerMask & ALL_CU_LAYERS )
                width_adj =  itemplotter.getFineWidthAdj();

            switch( aLayerMask &
                   ( SOLDERMASK_LAYER_BACK | SOLDERMASK_LAYER_FRONT |
                     SOLDERPASTE_LAYER_BACK | SOLDERPASTE_LAYER_FRONT ) )
            {
            case SOLDERMASK_LAYER_FRONT:
            case SOLDERMASK_LAYER_BACK:
                margin.x = margin.y = pad->GetSolderMaskMargin();
                break;

            case SOLDERPASTE_LAYER_FRONT:
            case SOLDERPASTE_LAYER_BACK:
                margin = pad->GetSolderPasteMargin();
                break;

            default:
                break;
            }

            wxSize padPlotsSize;
            padPlotsSize.x = pad->GetSize().x + ( 2 * margin.x ) + width_adj;
            padPlotsSize.y = pad->GetSize().y + ( 2 * margin.y ) + width_adj;

            // Don't draw a null size item :
            if( padPlotsSize.x <= 0 || padPlotsSize.y <= 0 )
                continue;

            EDA_COLOR_T color = BLACK;

            if( (pad->GetLayerMask() & LAYER_BACK) )
               color = aBoard->GetVisibleElementColor( PAD_BK_VISIBLE );

            if((pad->GetLayerMask() & LAYER_FRONT ) )
                color = ColorFromInt( color | aBoard->GetVisibleElementColor( PAD_FR_VISIBLE ) );

            // Temporary set the pad size to the required plot size:
            wxSize tmppadsize = pad->GetSize();
            pad->SetSize( padPlotsSize );
            switch( pad->GetShape() )
            {
            case PAD_CIRCLE:
            case PAD_OVAL:
                if( aPlotOpt.GetSkipPlotNPTH_Pads() &&
                    (pad->GetSize() == pad->GetDrillSize()) &&
                    (pad->GetAttribute() == PAD_HOLE_NOT_PLATED) )
                    break;

                // Fall through:
            case PAD_TRAPEZOID:
            case PAD_RECT:
            default:
                itemplotter.PlotPad( pad, color, plotMode );
                break;
            }

            pad->SetSize( tmppadsize );     // Restore the pad size
        }
    }

    // Plot vias on copper layers, and if aPlotOpt.GetPlotViaOnMaskLayer() is true,
    // plot them on solder mask
    for( TRACK* track = aBoard->m_Track; track; track = track->Next() )
    {
        const VIA* Via = dynamic_cast<const VIA*>( track );

        if( !Via )
            continue;

        // vias are not plotted if not on selected layer, but if layer
        // is SOLDERMASK_LAYER_BACK or SOLDERMASK_LAYER_FRONT,vias are drawn,
        // only if they are on the corresponding external copper layer
        int via_mask_layer = Via->GetLayerMask();

        if( aPlotOpt.GetPlotViaOnMaskLayer() )
        {
            if( via_mask_layer & LAYER_BACK )
                via_mask_layer |= SOLDERMASK_LAYER_BACK;

            if( via_mask_layer & LAYER_FRONT )
                via_mask_layer |= SOLDERMASK_LAYER_FRONT;
        }

        if( ( via_mask_layer & aLayerMask ) == 0 )
            continue;

        int via_margin = 0;
        double width_adj = 0;

        // If the current layer is a solder mask, use the global mask
        // clearance for vias
        if( ( aLayerMask & ( SOLDERMASK_LAYER_BACK | SOLDERMASK_LAYER_FRONT ) ) )
            via_margin = aBoard->GetDesignSettings().m_SolderMaskMargin;

        if( aLayerMask & ALL_CU_LAYERS )
            width_adj = itemplotter.getFineWidthAdj();

        int diameter = Via->GetWidth() + 2 * via_margin + width_adj;

        // Don't draw a null size item :
        if( diameter <= 0 )
            continue;

        EDA_COLOR_T color = aBoard->GetVisibleElementColor(VIAS_VISIBLE + Via->GetViaType());
        // Set plot color (change WHITE to LIGHTGRAY because
        // the white items are not seen on a white paper or screen
        aPlotter->SetColor( color != WHITE ? color : LIGHTGRAY);
        aPlotter->FlashPadCircle( Via->GetStart(), diameter, plotMode );
    }

    // Plot tracks (not vias) :
    for( TRACK* track = aBoard->m_Track; track; track = track->Next() )
    {
        if( track->Type() == PCB_VIA_T )
            continue;

        if( (GetLayerMask( track->GetLayer() ) & aLayerMask) == 0 )
            continue;

        int width = track->GetWidth() + itemplotter.getFineWidthAdj();
        aPlotter->SetColor( itemplotter.getColor( track->GetLayer() ) );
        aPlotter->ThickSegment( track->GetStart(), track->GetEnd(), width, plotMode );
    }

    // Plot zones (outdated, for old boards compatibility):
    for( TRACK* track = aBoard->m_Zone; track; track = track->Next() )
    {
        if( (GetLayerMask( track->GetLayer() ) & aLayerMask) == 0 )
            continue;

        int width = track->GetWidth() + itemplotter.getFineWidthAdj();
        aPlotter->SetColor( itemplotter.getColor( track->GetLayer() ) );
        aPlotter->ThickSegment( track->GetStart(), track->GetEnd(), width, plotMode );
    }

    // Plot filled ares
    for( int ii = 0; ii < aBoard->GetAreaCount(); ii++ )
    {
        ZONE_CONTAINER* zone = aBoard->GetArea( ii );

        if( ( GetLayerMask(zone->GetLayer() )  & aLayerMask ) == 0 )
            continue;

        itemplotter.PlotFilledAreas( zone );
    }

    // Adding drill marks, if required and if the plotter is able to plot them:
    if( aPlotOpt.GetDrillMarksType() != PCB_PLOT_PARAMS::NO_DRILL_SHAPE )
        itemplotter.PlotDrillMarks();
}