593 lines
20 KiB
C++
593 lines
20 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2004-2018 Jean-Pierre Charras, jp.charras at wanadoo.fr
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* Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
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* Copyright (C) 1992-2020 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <reporter.h>
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#include <board_commit.h>
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#include <cleanup_item.h>
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#include <connectivity/connectivity_algo.h>
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#include <connectivity/connectivity_data.h>
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#include <tool/tool_manager.h>
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#include <tools/pcb_actions.h>
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#include <tools/global_edit_tool.h>
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#include <drc/drc_rtree.h>
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#include <tracks_cleaner.h>
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TRACKS_CLEANER::TRACKS_CLEANER( BOARD* aPcb, BOARD_COMMIT& aCommit ) :
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m_brd( aPcb ),
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m_commit( aCommit ),
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m_dryRun( true ),
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m_itemsList( nullptr )
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{
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}
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/* Main cleaning function.
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* Delete
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* - Redundant points on tracks (merge aligned segments)
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* - vias on pad
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* - null length segments
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*/
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void TRACKS_CLEANER::CleanupBoard( bool aDryRun, std::vector<std::shared_ptr<CLEANUP_ITEM> >* aItemsList,
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bool aRemoveMisConnected, bool aCleanVias, bool aMergeSegments,
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bool aDeleteUnconnected, bool aDeleteTracksinPad, bool aDeleteDanglingVias )
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{
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bool has_deleted = false;
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m_dryRun = aDryRun;
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m_itemsList = aItemsList;
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cleanup( aCleanVias, aMergeSegments || aRemoveMisConnected, aMergeSegments, aMergeSegments );
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if( aRemoveMisConnected )
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removeShortingTrackSegments();
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if( aDeleteTracksinPad )
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deleteTracksInPads();
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has_deleted = deleteDanglingTracks( aDeleteUnconnected, aDeleteDanglingVias );
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if( has_deleted && aMergeSegments )
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cleanup( false, false, false, true );
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}
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void TRACKS_CLEANER::removeShortingTrackSegments()
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{
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std::shared_ptr<CONNECTIVITY_DATA> connectivity = m_brd->GetConnectivity();
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std::set<BOARD_ITEM *> toRemove;
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for( PCB_TRACK* segment : m_brd->Tracks() )
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{
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// Assume that the user knows what they are doing
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if( segment->IsLocked() )
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continue;
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for( PAD* testedPad : connectivity->GetConnectedPads( segment ) )
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{
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if( segment->GetNetCode() != testedPad->GetNetCode() )
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{
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std::shared_ptr<CLEANUP_ITEM> item;
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if( segment->Type() == PCB_VIA_T )
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item = std::make_shared<CLEANUP_ITEM>( CLEANUP_SHORTING_VIA );
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else
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item = std::make_shared<CLEANUP_ITEM>( CLEANUP_SHORTING_TRACK );
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item->SetItems( segment );
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m_itemsList->push_back( item );
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toRemove.insert( segment );
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}
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}
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for( PCB_TRACK* testedTrack : connectivity->GetConnectedTracks( segment ) )
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{
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if( segment->GetNetCode() != testedTrack->GetNetCode() )
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{
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std::shared_ptr<CLEANUP_ITEM> item;
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if( segment->Type() == PCB_VIA_T )
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item = std::make_shared<CLEANUP_ITEM>( CLEANUP_SHORTING_VIA );
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else
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item = std::make_shared<CLEANUP_ITEM>( CLEANUP_SHORTING_TRACK );
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item->SetItems( segment );
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m_itemsList->push_back( item );
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toRemove.insert( segment );
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}
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}
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}
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if( !m_dryRun )
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removeItems( toRemove );
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}
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bool TRACKS_CLEANER::testTrackEndpointIsNode( PCB_TRACK* aTrack, bool aTstStart )
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{
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// A node is a point where more than 2 items are connected.
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auto connectivity = m_brd->GetConnectivity();
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auto items = connectivity->GetConnectivityAlgo()->ItemEntry( aTrack ).GetItems();
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if( items.empty() )
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return false;
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auto citem = items.front();
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if( !citem->Valid() )
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return false;
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auto anchors = citem->Anchors();
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VECTOR2I refpoint = aTstStart ? aTrack->GetStart() : aTrack->GetEnd();
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for( const auto& anchor : anchors )
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{
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if( anchor->Pos() != refpoint )
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continue;
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// The right anchor point is found: if more than one other item
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// (pad, via, track...) is connected, it is a node:
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return anchor->ConnectedItemsCount() > 1;
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}
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return false;
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}
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bool TRACKS_CLEANER::deleteDanglingTracks( bool aTrack, bool aVia )
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{
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bool item_erased = false;
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bool modified = false;
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if( !aTrack && !aVia )
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return false;
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do // Iterate when at least one track is deleted
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{
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item_erased = false;
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// Ensure the connectivity is up to date, especially after removing a dangling segment
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m_brd->BuildConnectivity();
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// Keep a duplicate deque to all deleting in the primary
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std::deque<PCB_TRACK*> temp_tracks( m_brd->Tracks() );
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for( PCB_TRACK* track : temp_tracks )
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{
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if( track->IsLocked() || ( track->GetFlags() & IS_DELETED ) > 0 )
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continue;
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if( !aVia && track->Type() == PCB_VIA_T )
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continue;
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if( !aTrack && ( track->Type() == PCB_TRACE_T || track->Type() == PCB_ARC_T ) )
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continue;
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// Test if a track (or a via) endpoint is not connected to another track or zone.
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if( m_brd->GetConnectivity()->TestTrackEndpointDangling( track ) )
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{
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std::shared_ptr<CLEANUP_ITEM> item;
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if( track->Type() == PCB_VIA_T )
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item = std::make_shared<CLEANUP_ITEM>( CLEANUP_DANGLING_VIA );
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else
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item = std::make_shared<CLEANUP_ITEM>( CLEANUP_DANGLING_TRACK );
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item->SetItems( track );
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m_itemsList->push_back( item );
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track->SetFlags( IS_DELETED );
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// keep iterating, because a track connected to the deleted track
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// now perhaps is not connected and should be deleted
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item_erased = true;
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if( !m_dryRun )
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{
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m_brd->Remove( track );
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m_commit.Removed( track );
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modified = true;
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}
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}
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}
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} while( item_erased ); // A segment was erased: test for some new dangling segments
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return modified;
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}
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void TRACKS_CLEANER::deleteTracksInPads()
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{
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std::set<BOARD_ITEM*> toRemove;
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// Delete tracks that start and end on the same pad
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std::shared_ptr<CONNECTIVITY_DATA> connectivity = m_brd->GetConnectivity();
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for( PCB_TRACK* track : m_brd->Tracks() )
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{
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if( track->IsLocked() )
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continue;
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if( track->Type() == PCB_VIA_T )
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continue;
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// Mark track if connected to pads
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for( PAD* pad : connectivity->GetConnectedPads( track ) )
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{
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if( pad->HitTest( track->GetStart() ) && pad->HitTest( track->GetEnd() ) )
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{
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SHAPE_POLY_SET poly;
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track->TransformShapeWithClearanceToPolygon( poly, track->GetLayer(), 0,
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ARC_HIGH_DEF, ERROR_INSIDE );
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poly.BooleanSubtract( *pad->GetEffectivePolygon(), SHAPE_POLY_SET::PM_FAST );
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if( poly.IsEmpty() )
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{
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auto item = std::make_shared<CLEANUP_ITEM>( CLEANUP_TRACK_IN_PAD );
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item->SetItems( track );
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m_itemsList->push_back( item );
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toRemove.insert( track );
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track->SetFlags( IS_DELETED );
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}
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}
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}
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}
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if( !m_dryRun )
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removeItems( toRemove );
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}
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/**
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* Geometry-based cleanup: duplicate items, null items, colinear items.
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*/
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void TRACKS_CLEANER::cleanup( bool aDeleteDuplicateVias, bool aDeleteNullSegments,
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bool aDeleteDuplicateSegments, bool aMergeSegments )
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{
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DRC_RTREE rtree;
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for( PCB_TRACK* track : m_brd->Tracks() )
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{
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track->ClearFlags( IS_DELETED | SKIP_STRUCT );
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rtree.Insert( track, track->GetLayer() );
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}
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std::set<BOARD_ITEM*> toRemove;
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for( PCB_TRACK* track : m_brd->Tracks() )
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{
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if( track->HasFlag( IS_DELETED ) || track->IsLocked() )
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continue;
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if( aDeleteDuplicateVias && track->Type() == PCB_VIA_T )
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{
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PCB_VIA* via = static_cast<PCB_VIA*>( track );
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if( via->GetStart() != via->GetEnd() )
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via->SetEnd( via->GetStart() );
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rtree.QueryColliding( via, via->GetLayer(), via->GetLayer(),
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// Filter:
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[&]( BOARD_ITEM* aItem ) -> bool
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{
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return aItem->Type() == PCB_VIA_T
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&& !aItem->HasFlag( SKIP_STRUCT )
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&& !aItem->HasFlag( IS_DELETED );
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},
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// Visitor:
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[&]( BOARD_ITEM* aItem ) -> bool
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{
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PCB_VIA* other = static_cast<PCB_VIA*>( aItem );
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if( via->GetPosition() == other->GetPosition()
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&& via->GetViaType() == other->GetViaType()
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&& via->GetLayerSet() == other->GetLayerSet() )
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{
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auto item = std::make_shared<CLEANUP_ITEM>( CLEANUP_REDUNDANT_VIA );
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item->SetItems( via );
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m_itemsList->push_back( item );
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via->SetFlags( IS_DELETED );
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toRemove.insert( via );
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}
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return true;
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} );
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// To delete through Via on THT pads at same location
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// Examine the list of connected pads: if a through pad is found, the via is redundant
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for( PAD* pad : m_brd->GetConnectivity()->GetConnectedPads( via ) )
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{
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const LSET all_cu = LSET::AllCuMask();
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if( ( pad->GetLayerSet() & all_cu ) == all_cu )
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{
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auto item = std::make_shared<CLEANUP_ITEM>( CLEANUP_REDUNDANT_VIA );
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item->SetItems( via, pad );
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m_itemsList->push_back( item );
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via->SetFlags( IS_DELETED );
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toRemove.insert( via );
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break;
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}
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}
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via->SetFlags( SKIP_STRUCT );
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}
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if( aDeleteNullSegments && track->Type() != PCB_VIA_T )
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{
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if( track->IsNull() )
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{
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auto item = std::make_shared<CLEANUP_ITEM>( CLEANUP_ZERO_LENGTH_TRACK );
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item->SetItems( track );
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m_itemsList->push_back( item );
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track->SetFlags( IS_DELETED );
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toRemove.insert( track );
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}
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}
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if( aDeleteDuplicateSegments && track->Type() == PCB_TRACE_T && !track->IsNull() )
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{
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rtree.QueryColliding( track, track->GetLayer(), track->GetLayer(),
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// Filter:
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[&]( BOARD_ITEM* aItem ) -> bool
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{
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return aItem->Type() == PCB_TRACE_T
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&& !aItem->HasFlag( SKIP_STRUCT )
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&& !aItem->HasFlag( IS_DELETED )
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&& !static_cast<PCB_TRACK*>( aItem )->IsNull();
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},
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// Visitor:
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[&]( BOARD_ITEM* aItem ) -> bool
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{
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PCB_TRACK* other = static_cast<PCB_TRACK*>( aItem );
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if( track->IsPointOnEnds( other->GetStart() )
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&& track->IsPointOnEnds( other->GetEnd() )
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&& track->GetWidth() == other->GetWidth()
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&& track->GetLayer() == other->GetLayer() )
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{
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auto item = std::make_shared<CLEANUP_ITEM>( CLEANUP_DUPLICATE_TRACK );
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item->SetItems( track );
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m_itemsList->push_back( item );
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track->SetFlags( IS_DELETED );
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toRemove.insert( track );
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}
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return true;
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} );
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track->SetFlags( SKIP_STRUCT );
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}
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}
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if( !m_dryRun )
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removeItems( toRemove );
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if( aMergeSegments )
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{
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bool merged;
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do
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{
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merged = false;
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m_brd->BuildConnectivity();
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auto connectivity = m_brd->GetConnectivity()->GetConnectivityAlgo();
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// Keep a duplicate deque to all deleting in the primary
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std::deque<PCB_TRACK*> temp_segments( m_brd->Tracks() );
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// merge collinear segments:
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for( PCB_TRACK* segment : temp_segments )
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{
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if( segment->Type() != PCB_TRACE_T ) // one can merge only track collinear segments, not vias.
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continue;
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if( segment->HasFlag( IS_DELETED ) ) // already taken in account
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continue;
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for( CN_ITEM* citem : connectivity->ItemEntry( segment ).GetItems() )
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{
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// Do not merge an end which has different width tracks attached -- it's a
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// common use-case for necking-down a track between pads.
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std::vector<PCB_TRACK*> sameWidthCandidates;
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std::vector<PCB_TRACK*> differentWidthCandidates;
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for( CN_ITEM* connected : citem->ConnectedItems() )
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{
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if( !connected->Valid() )
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continue;
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BOARD_CONNECTED_ITEM* candidateItem = connected->Parent();
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if( candidateItem->Type() == PCB_TRACE_T && !candidateItem->HasFlag( IS_DELETED ) )
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{
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PCB_TRACK* candidateSegment = static_cast<PCB_TRACK*>( candidateItem );
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if( candidateSegment->GetWidth() == segment->GetWidth() )
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sameWidthCandidates.push_back( candidateSegment );
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else
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differentWidthCandidates.push_back( candidateSegment );
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}
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}
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if( differentWidthCandidates.size() == 0 )
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{
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for( PCB_TRACK* candidate : sameWidthCandidates )
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{
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if( segment->ApproxCollinear( *candidate ) )
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merged |= mergeCollinearSegments( segment, candidate );
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}
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}
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}
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}
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} while( merged );
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}
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for( PCB_TRACK* track : m_brd->Tracks() )
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track->ClearFlags( IS_DELETED | SKIP_STRUCT );
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}
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bool TRACKS_CLEANER::mergeCollinearSegments( PCB_TRACK* aSeg1, PCB_TRACK* aSeg2 )
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{
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if( aSeg1->IsLocked() || aSeg2->IsLocked() )
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return false;
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std::shared_ptr<CONNECTIVITY_DATA> connectivity = m_brd->GetConnectivity();
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std::vector<PCB_TRACK*> tracks = connectivity->GetConnectedTracks( aSeg1 );
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std::vector<PCB_TRACK*> tracks2 = connectivity->GetConnectedTracks( aSeg2 );
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std::move( tracks2.begin(), tracks2.end(), std::back_inserter( tracks ) );
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tracks.erase(
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std::remove_if( tracks.begin(), tracks.end(), [ aSeg1, aSeg2 ]( PCB_TRACK* aTest )
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{
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return ( aTest == aSeg1 ) || ( aTest == aSeg2 );
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} ), tracks.end() );
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std::set<VECTOR2I> pts;
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// Collect the unique points where the two tracks are connected to others
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for( PCB_TRACK* track : tracks )
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{
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if( track->IsPointOnEnds( aSeg1->GetStart() ) )
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pts.emplace( aSeg1->GetStart() );
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if( track->IsPointOnEnds( aSeg1->GetEnd() ) )
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pts.emplace( aSeg1->GetEnd() );
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if( track->IsPointOnEnds( aSeg2->GetStart() ) )
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pts.emplace( aSeg2->GetStart() );
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if( track->IsPointOnEnds( aSeg2->GetEnd() ) )
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pts.emplace( aSeg2->GetEnd() );
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}
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// This means there is a node in the center
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if( pts.size() > 2 )
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return false;
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// Verify the removed point after merging is not a node.
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// If it is a node (i.e. if more than one other item is connected, the segments cannot be merged
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PCB_TRACK dummy_seg( *aSeg1 );
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// Calculate the new ends of the segment to merge, and store them to dummy_seg:
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int min_x = std::min( aSeg1->GetStart().x,
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std::min( aSeg1->GetEnd().x, std::min( aSeg2->GetStart().x, aSeg2->GetEnd().x ) ) );
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int min_y = std::min( aSeg1->GetStart().y,
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std::min( aSeg1->GetEnd().y, std::min( aSeg2->GetStart().y, aSeg2->GetEnd().y ) ) );
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int max_x = std::max( aSeg1->GetStart().x,
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std::max( aSeg1->GetEnd().x, std::max( aSeg2->GetStart().x, aSeg2->GetEnd().x ) ) );
|
|
int max_y = std::max( aSeg1->GetStart().y,
|
|
std::max( aSeg1->GetEnd().y, std::max( aSeg2->GetStart().y, aSeg2->GetEnd().y ) ) );
|
|
|
|
if( ( aSeg1->GetStart().x > aSeg1->GetEnd().x )
|
|
== ( aSeg1->GetStart().y > aSeg1->GetEnd().y ) )
|
|
{
|
|
dummy_seg.SetStart( VECTOR2I( min_x, min_y ) );
|
|
dummy_seg.SetEnd( VECTOR2I( max_x, max_y ) );
|
|
}
|
|
else
|
|
{
|
|
dummy_seg.SetStart( VECTOR2I( min_x, max_y ) );
|
|
dummy_seg.SetEnd( VECTOR2I( max_x, min_y ) );
|
|
}
|
|
|
|
// If the existing connected points are not the same as the points generated by our
|
|
// min/max alg, then assign the missing points to the end closest. This ensures that
|
|
// our replacment track is still connected
|
|
for( auto pt : pts )
|
|
{
|
|
if( !dummy_seg.IsPointOnEnds( wxPoint( pt.x, pt.y ) ) )
|
|
{
|
|
if( ( VECTOR2I( dummy_seg.GetStart() ) - pt ).SquaredEuclideanNorm() <
|
|
( VECTOR2I( dummy_seg.GetEnd() ) - pt ).SquaredEuclideanNorm() )
|
|
dummy_seg.SetStart( wxPoint( pt.x, pt.y ) );
|
|
else
|
|
dummy_seg.SetEnd( wxPoint( pt.x, pt.y ) );
|
|
}
|
|
}
|
|
|
|
// Now find the removed end(s) and stop merging if it is a node:
|
|
if( aSeg1->GetStart() != dummy_seg.GetStart() && aSeg1->GetStart() != dummy_seg.GetEnd() )
|
|
{
|
|
if( testTrackEndpointIsNode( aSeg1, true ) )
|
|
return false;
|
|
}
|
|
|
|
if( aSeg1->GetEnd() != dummy_seg.GetStart() && aSeg1->GetEnd() != dummy_seg.GetEnd() )
|
|
{
|
|
if( testTrackEndpointIsNode( aSeg1, false ) )
|
|
return false;
|
|
}
|
|
|
|
std::shared_ptr<CLEANUP_ITEM> item = std::make_shared<CLEANUP_ITEM>( CLEANUP_MERGE_TRACKS );
|
|
item->SetItems( aSeg1, aSeg2 );
|
|
m_itemsList->push_back( item );
|
|
|
|
aSeg2->SetFlags( IS_DELETED );
|
|
|
|
if( !m_dryRun )
|
|
{
|
|
m_commit.Modify( aSeg1 );
|
|
*aSeg1 = dummy_seg;
|
|
|
|
connectivity->Update( aSeg1 );
|
|
|
|
// Clear the status flags here after update.
|
|
for( auto pad : connectivity->GetConnectedPads( aSeg1 ) )
|
|
{
|
|
aSeg1->SetState( BEGIN_ONPAD, pad->HitTest( aSeg1->GetStart() ) );
|
|
aSeg1->SetState( END_ONPAD, pad->HitTest( aSeg1->GetEnd() ) );
|
|
}
|
|
|
|
// Merge successful, seg2 has to go away
|
|
m_brd->Remove( aSeg2 );
|
|
m_commit.Removed( aSeg2 );
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
void TRACKS_CLEANER::removeItems( std::set<BOARD_ITEM*>& aItems )
|
|
{
|
|
for( auto item : aItems )
|
|
{
|
|
m_brd->Remove( item );
|
|
m_commit.Removed( item );
|
|
}
|
|
}
|