C++ TRACK::GetBoundingBox方法代码示例

bool PCB_EDIT_FRAME::AppendBoardFile( const wxString& aFullFileName, int aCtl )
{
    IO_MGR::PCB_FILE_T  pluginType = plugin_type( aFullFileName, aCtl );
    PLUGIN::RELEASER pi( IO_MGR::PluginFind( pluginType ) );

    // keep trace of existing items, in order to know what are the new items
    // (for undo command for instance)

    // Tracks are inserted, not append, so mark existing tracks to know what are
    // the new tracks
    for( TRACK* track = GetBoard()->m_Track; track; track = track->Next() )
        track->SetFlags( FLAG0 );

    // Other items are append to the item list, so keep trace to the
    // last existing item is enough
    MODULE* module = GetBoard()->m_Modules.GetLast();
    BOARD_ITEM* drawing = GetBoard()->m_Drawings.GetLast();
    int zonescount = GetBoard()->GetAreaCount();

    // Keep also the count of copper layers, because we can happen boards
    // with different copper layers counts,
    // and the enabled layers
    int initialCopperLayerCount = GetBoard()->GetCopperLayerCount();
    LSET initialEnabledLayers = GetBoard()->GetEnabledLayers();

    try
    {
        PROPERTIES  props;
        char        xbuf[30];
        char        ybuf[30];

        // EAGLE_PLUGIN can use this info to center the BOARD, but it does not yet.
        sprintf( xbuf, "%d", GetPageSizeIU().x );
        sprintf( ybuf, "%d", GetPageSizeIU().y );

        props["page_width"]  = xbuf;
        props["page_height"] = ybuf;

        GetDesignSettings().m_NetClasses.Clear();
        pi->Load( aFullFileName, GetBoard(), &props );
    }
    catch( const IO_ERROR& ioe )
    {
        for( TRACK* track = GetBoard()->m_Track; track; track = track->Next() )
            track->ClearFlags( FLAG0 );

        wxString msg = wxString::Format( _(
                "Error loading board.\n%s" ),
                GetChars( ioe.What() )
                );
        DisplayError( this, msg );

        return false;
    }

    // Now prepare a block move command to place the new items, and
    // prepare the undo command.
    BLOCK_SELECTOR& blockmove = GetScreen()->m_BlockLocate;
    HandleBlockBegin( NULL, BLOCK_PRESELECT_MOVE, wxPoint( 0, 0) );
    PICKED_ITEMS_LIST& blockitemsList = blockmove.GetItems();
    PICKED_ITEMS_LIST undoListPicker;
    ITEM_PICKER picker( NULL, UR_NEW );

    EDA_RECT bbox;          // the new items bounding box, for block move
    bool bboxInit = true;   // true until the bounding box is initialized

    for( TRACK* track = GetBoard()->m_Track; track; track = track->Next() )
    {
        if( track->GetFlags() & FLAG0  )
        {
            track->ClearFlags( FLAG0 );
            continue;
        }

        track->SetFlags( IS_MOVED );
        picker.SetItem( track );
        undoListPicker.PushItem( picker );
        blockitemsList.PushItem( picker );

        if( bboxInit )
            bbox = track->GetBoundingBox();
        else
            bbox.Merge( track->GetBoundingBox() );

        bboxInit = false;
    }

    if( module )
        module = module->Next();
    else
        module = GetBoard()->m_Modules;

    for( ; module; module = module->Next() )
    {
        module->SetFlags( IS_MOVED );
        picker.SetItem( module );
        undoListPicker.PushItem( picker );
        blockitemsList.PushItem( picker );

        if( bboxInit )
//.........这里部分代码省略.........

void ZONE_CONTAINER::buildFeatureHoleList( BOARD* aPcb, SHAPE_POLY_SET& aFeatures )
{
    int segsPerCircle;
    double correctionFactor;

    // Set the number of segments in arc approximations
    if( m_ArcToSegmentsCount == ARC_APPROX_SEGMENTS_COUNT_HIGHT_DEF  )
        segsPerCircle = ARC_APPROX_SEGMENTS_COUNT_HIGHT_DEF;
    else
        segsPerCircle = ARC_APPROX_SEGMENTS_COUNT_LOW_DEF;

    /* calculates the coeff to compensate radius reduction of holes clearance
     * due to the segment approx.
     * For a circle the min radius is radius * cos( 2PI / s_CircleToSegmentsCount / 2)
     * s_Correction is 1 /cos( PI/s_CircleToSegmentsCount  )
     */
    correctionFactor = 1.0 / cos( M_PI / (double) segsPerCircle );

    aFeatures.RemoveAllContours();

    int outline_half_thickness = m_ZoneMinThickness / 2;

    int zone_clearance = std::max( m_ZoneClearance, GetClearance() );
    zone_clearance += outline_half_thickness;

    /* store holes (i.e. tracks and pads areas as polygons outlines)
     * in a polygon list
     */

    /* items ouside the zone bounding box are skipped
     * the bounding box is the zone bounding box + the biggest clearance found in Netclass list
     */
    EDA_RECT item_boundingbox;
    EDA_RECT zone_boundingbox  = GetBoundingBox();
    int      biggest_clearance = aPcb->GetDesignSettings().GetBiggestClearanceValue();
    biggest_clearance = std::max( biggest_clearance, zone_clearance );
    zone_boundingbox.Inflate( biggest_clearance );

    /*
     * First : Add pads. Note: pads having the same net as zone are left in zone.
     * Thermal shapes will be created later if necessary
     */
    int item_clearance;

    /* Use a dummy pad to calculate hole clerance when a pad is not on all copper layers
     * and this pad has a hole
     * This dummy pad has the size and shape of the hole
    * Therefore, this dummy pad is a circle or an oval.
     * A pad must have a parent because some functions expect a non null parent
     * to find the parent board, and some other data
     */
    MODULE dummymodule( aPcb );    // Creates a dummy parent
    D_PAD dummypad( &dummymodule );

    for( MODULE* module = aPcb->m_Modules;  module;  module = module->Next() )
    {
        D_PAD* nextpad;

        for( D_PAD* pad = module->Pads(); pad != NULL; pad = nextpad )
        {
            nextpad = pad->Next();  // pad pointer can be modified by next code, so
                                    // calculate the next pad here

            if( !pad->IsOnLayer( GetLayer() ) )
            {
                /* Test for pads that are on top or bottom only and have a hole.
                 * There are curious pads but they can be used for some components that are
                 * inside the board (in fact inside the hole. Some photo diodes and Leds are
                 * like this)
                 */
                if( pad->GetDrillSize().x == 0 && pad->GetDrillSize().y == 0 )
                    continue;

                // Use a dummy pad to calculate a hole shape that have the same dimension as
                // the pad hole
                dummypad.SetSize( pad->GetDrillSize() );
                dummypad.SetOrientation( pad->GetOrientation() );
                dummypad.SetShape( pad->GetDrillShape() == PAD_DRILL_SHAPE_OBLONG ?
                                   PAD_SHAPE_OVAL : PAD_SHAPE_CIRCLE );
                dummypad.SetPosition( pad->GetPosition() );

                pad = &dummypad;
            }

            // Note: netcode <=0 means not connected item
            if( ( pad->GetNetCode() != GetNetCode() ) || ( pad->GetNetCode() <= 0 ) )
            {
                item_clearance   = pad->GetClearance() + outline_half_thickness;
                item_boundingbox = pad->GetBoundingBox();
                item_boundingbox.Inflate( item_clearance );

                if( item_boundingbox.Intersects( zone_boundingbox ) )
                {
                    int clearance = std::max( zone_clearance, item_clearance );
                    pad->TransformShapeWithClearanceToPolygon( aFeatures,
                                                               clearance,
                                                               segsPerCircle,
                                                               correctionFactor );
                }

//.........这里部分代码省略.........

/**
 * Function AddClearanceAreasPolygonsToPolysList
 * Supports a min thickness area constraint.
 * Add non copper areas polygons (pads and tracks with clearance)
 * to the filled copper area found
 * in BuildFilledPolysListData after calculating filled areas in a zone
 * Non filled copper areas are pads and track and their clearance areas
 * The filled copper area must be computed just before.
 * BuildFilledPolysListData() call this function just after creating the
 *  filled copper area polygon (without clearance areas)
 * to do that this function:
 * 1 - Creates the main outline (zone outline) using a correction to shrink the resulting area
 *     with m_ZoneMinThickness/2 value.
 *     The result is areas with a margin of m_ZoneMinThickness/2
 *     When drawing outline with segments having a thickness of m_ZoneMinThickness, the
 *      outlines will match exactly the initial outlines
 * 3 - Add all non filled areas (pads, tracks) in group B with a clearance of m_Clearance +
 *     m_ZoneMinThickness/2
 *     in a buffer
 *   - If Thermal shapes are wanted, add non filled area, in order to create these thermal shapes
 * 4 - calculates the polygon A - B
 * 5 - put resulting list of polygons (filled areas) in m_FilledPolysList
 *     This zone contains pads with the same net.
 * 6 - Remove insulated copper islands
 * 7 - If Thermal shapes are wanted, remove unconnected stubs in thermal shapes:
 *     creates a buffer of polygons corresponding to stubs to remove
 *     sub them to the filled areas.
 *     Remove new insulated copper islands
 */
void ZONE_CONTAINER::AddClearanceAreasPolygonsToPolysList( BOARD* aPcb )
{
    // Set the number of segments in arc approximations
    if( m_ArcToSegmentsCount == ARC_APPROX_SEGMENTS_COUNT_HIGHT_DEF  )
        s_CircleToSegmentsCount = ARC_APPROX_SEGMENTS_COUNT_HIGHT_DEF;
    else
        s_CircleToSegmentsCount = ARC_APPROX_SEGMENTS_COUNT_LOW_DEF;

    /* calculates the coeff to compensate radius reduction of holes clearance
     * due to the segment approx.
     * For a circle the min radius is radius * cos( 2PI / s_CircleToSegmentsCount / 2)
     * s_Correction is 1 /cos( PI/s_CircleToSegmentsCount  )
     */
    s_Correction = 1.0 / cos( M_PI / s_CircleToSegmentsCount );

    // This KI_POLYGON_SET is the area(s) to fill, with m_ZoneMinThickness/2
    KI_POLYGON_SET polyset_zone_solid_areas;
    int         margin = m_ZoneMinThickness / 2;

    /* First, creates the main polygon (i.e. the filled area using only one outline)
     * to reserve a m_ZoneMinThickness/2 margin around the outlines and holes
     * this margin is the room to redraw outlines with segments having a width set to
     * m_ZoneMinThickness
     * so m_ZoneMinThickness is the min thickness of the filled zones areas
     * the main polygon is stored in polyset_zone_solid_areas
     */

    CopyPolygonsFromFilledPolysListToKiPolygonList( polyset_zone_solid_areas );
    polyset_zone_solid_areas -= margin;

    if( polyset_zone_solid_areas.size() == 0 )
        return;

    /* Calculates the clearance value that meet DRC requirements
     * from m_ZoneClearance and clearance from the corresponding netclass
     * We have a "local" clearance in zones because most of time
     * clearance between a zone and others items is bigger than the netclass clearance
     * this is more true for small clearance values
     * Note also the "local" clearance is used for clearance between non copper items
     *    or items like texts on copper layers
     */
    int zone_clearance = std::max( m_ZoneClearance, GetClearance() );
    zone_clearance += margin;

    /* store holes (i.e. tracks and pads areas as polygons outlines)
     * in a polygon list
     */

    /* items ouside the zone bounding box are skipped
     * the bounding box is the zone bounding box + the biggest clearance found in Netclass list
     */
    EDA_RECT item_boundingbox;
    EDA_RECT zone_boundingbox  = GetBoundingBox();
    int      biggest_clearance = aPcb->GetDesignSettings().GetBiggestClearanceValue();
    biggest_clearance = std::max( biggest_clearance, zone_clearance );
    zone_boundingbox.Inflate( biggest_clearance );

    /*
     * First : Add pads. Note: pads having the same net as zone are left in zone.
     * Thermal shapes will be created later if necessary
     */
    int item_clearance;

    // static to avoid unnecessary memory allocation when filling many zones.
    static CPOLYGONS_LIST cornerBufferPolysToSubstract;
    cornerBufferPolysToSubstract.RemoveAllContours();

    /* Use a dummy pad to calculate hole clerance when a pad is not on all copper layers
     * and this pad has a hole
     * This dummy pad has the size and shape of the hole
    * Therefore, this dummy pad is a circle or an oval.
//.........这里部分代码省略.........