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Message #29270
Re: Something new and old
Hi Orson
Is it possible that I can test it too? Shall we put all those pieces
together little by little. In attach there is current algorithm with my
changes, so you can see what I have to be done to make it work now. All
additions are inside preprosessor definition PCBNEW_WITH_TEARDROPS, maybe I
change it PCBNEW_WITH_TRACKNODEITEMS, so full code is compiled with or
without them. Viastitchin is what it was except that I made it a class.
In legacy canvas these things are working quite properly, but in gal. I did
not look that wery deeply, but jus only how to commit. Now it is not good.
Is it possible that PNS gives those removed and added tracks to commit like
a unordered_multimap. Tracks that are removed and added are pairs so that
it is possible to see witch removed belongs added?
Regards
Heikki
On Mon, Apr 24, 2017 at 12:52 PM, Maciej Sumiński <maciej.suminski@xxxxxxx>
wrote:
> Hi Heikki,
>
> The new connectivity algorithm is now in the testing phase, and is
> likely to be published/merged very soon and your tools would be a great
> complement for the algorithm. Could we have a look at your code, even if
> you think it is not finished yet? Perhaps we could help a bit, if
> necessary.
>
> Regards,
> Orson
>
> On 04/24/2017 10:35 AM, Heikki Pulkkinen wrote:
> > Now they are there again. It was not so big job that I think.
> >
> > https://youtu.be/G1YCu2daNww
> >
> > On Thu, Mar 30, 2017 at 10:04 AM, Heikki Pulkkinen <hei6mail@xxxxxxxxx>
> > wrote:
> >
> >> Yes, they all where there, but any longer.
> >>
> >> On Wed, Mar 29, 2017 at 8:28 PM, Mário Luzeiro <mrluzeiro@xxxxx> wrote:
> >>
> >>> Impressive!
> >>> Is it rendering in the 3D-Viewer?
> >>> I.e.: does it reuse existent formats (segment, zones, arcs, etc) or is
> it
> >>> implementing new elements? (and so it is missing in 3D-Viewer) ?
> >>>
> >>>
> >>> ________________________________________
> >>> From: Kicad-developers <kicad-developers-bounces+mrluzeiro=
> >>> ua.pt@xxxxxxxxxxxxxxxxxxx> on behalf of Jakub Kozdon <
> fldrivers@xxxxxxxxx
> >>>>
> >>> Sent: 29 March 2017 16:38:29
> >>> To: Heikki Pulkkinen; kicad-developers
> >>> Subject: Re: [Kicad-developers] Something new and old
> >>>
> >>> Great work!
> >>>
> >>> Do you think that you can add snowman pads into your tool? [1]
> >>>
> >>> Hope will be soon merged!
> >>>
> >>> [1] http://www.ti.com/lit/an/sprabb3/sprabb3.pdf
> >>>
> >>>
> >>> Hi,
> >>>
> >>> Any comments, questions!
> >>>
> >>> https://youtu.be/CQC6XMTGxkk
> >>>
> >>> Heikki
> >>>
> >>>
> >>>
> >>> _______________________________________________
> >>> Mailing list: https://launchpad.net/~kicad-developers
> >>> Post to : kicad-developers@xxxxxxxxxxxxxxxxxxx<mailto:
> >>> kicad-developers@xxxxxxxxxxxxxxxxxxx>
> >>> Unsubscribe : https://launchpad.net/~kicad-developers
> >>> More help : https://help.launchpad.net/ListHelp
> >>>
> >>>
> >>>
> >>>
> >>
> >
> >
> >
> > _______________________________________________
> > Mailing list: https://launchpad.net/~kicad-developers
> > Post to : kicad-developers@xxxxxxxxxxxxxxxxxxx
> > Unsubscribe : https://launchpad.net/~kicad-developers
> > More help : https://help.launchpad.net/ListHelp
> >
>
>
>
> _______________________________________________
> Mailing list: https://launchpad.net/~kicad-developers
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> Unsubscribe : https://launchpad.net/~kicad-developers
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>
>
/**
* @file connect.cpp
* @brief Functions to handle existing tracks in ratsnest calculations.
*/
/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2012 Jean-Pierre Charras, jean-pierre.charras@xxxxxxxxxxxxxxx
* Copyright (C) 2012 SoftPLC Corporation, Dick Hollenbeck <dick@xxxxxxxxxxx>
* Copyright (C) 1992-2015 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 <fctsys.h>
#include <common.h>
#include <macros.h>
#include <wxBasePcbFrame.h>
#include <view/view.h>
#include <pcbnew.h>
// Helper classes to handle connection points
#include <connect.h>
#ifdef PCBNEW_WITH_TEARDROPS
#include "hvpp/viastitching.h"
#include "hvpp/roundedcornertrack.h"
#include "hvpp/roundedtrackscorner.h"
#endif
extern void Merge_SubNets_Connected_By_CopperAreas( BOARD* aPcb );
extern void Merge_SubNets_Connected_By_CopperAreas( BOARD* aPcb, int aNetcode );
// Local functions
static void RebuildTrackChain( BOARD* pcb );
CONNECTIONS::CONNECTIONS( BOARD * aBrd )
{
m_brd = aBrd;
m_firstTrack = NULL;
m_lastTrack = NULL;
}
/* Fills m_sortedPads with all pads that be connected to tracks
* pads are sorted by X coordinate ( and Y coordinates for same X value )
* aNetcode = net code to filter pads or < 0 to put all pads in list
*/
void CONNECTIONS::BuildPadsList( int aNetcode )
{
// Creates sorted pad list if not exists
m_sortedPads.clear();
m_brd->GetSortedPadListByXthenYCoord( m_sortedPads, aNetcode < 0 ? -1 : aNetcode );
}
/* Explores the list of pads and adds to m_PadsConnected member
* of each pad pads connected to
* Here, connections are due to intersecting pads, not tracks
*/
void CONNECTIONS::SearchConnectionsPadsToIntersectingPads()
{
std::vector<CONNECTED_POINT*> candidates;
BuildPadsCandidatesList();
for( unsigned ii = 0; ii < m_sortedPads.size(); ii++ )
{
D_PAD* pad = m_sortedPads[ii];
pad->m_PadsConnected.clear();
candidates.clear();
CollectItemsNearTo( candidates, pad->ShapePos(), pad->GetBoundingRadius() );
// add pads to pad.m_PadsConnected, if they are connected
for( unsigned jj = 0; jj < candidates.size(); jj++ )
{
CONNECTED_POINT* item = candidates[jj];
D_PAD* candidate_pad = item->GetPad();
if( pad == candidate_pad )
continue;
if( !( pad->GetLayerSet() & candidate_pad->GetLayerSet() ).any() )
continue;
if( pad->HitTest( item->GetPoint() ) )
{
pad->m_PadsConnected.push_back( candidate_pad );
}
}
}
}
/* Explores the list of pads
* Adds to m_PadsConnected member of each track the pad(s) connected to
* Adds to m_TracksConnected member of each pad the track(s) connected to
* D_PAD::m_TracksConnected is cleared before adding items
* TRACK::m_PadsConnected is not cleared
*/
void CONNECTIONS::SearchTracksConnectedToPads( bool add_to_padlist, bool add_to_tracklist)
{
std::vector<CONNECTED_POINT*> candidates;
for( unsigned ii = 0; ii < m_sortedPads.size(); ii++ )
{
D_PAD * pad = m_sortedPads[ii];
pad->m_TracksConnected.clear();
candidates.clear();
CollectItemsNearTo( candidates, pad->GetPosition(), pad->GetBoundingRadius() );
// add this pad to track.m_PadsConnected, if it is connected
for( unsigned jj = 0; jj < candidates.size(); jj++ )
{
CONNECTED_POINT* cp_item = candidates[jj];
if( !( pad->GetLayerSet() & cp_item->GetTrack()->GetLayerSet() ).any() )
continue;
#ifdef PCBNEW_WITH_TEARDROPS
//Do not connect teardrop.
if( cp_item->GetTrack()->Type() == PCB_TEARDROP_T )
continue;
//Do not connect rounded corner.
if( cp_item->GetTrack()->Type() == PCB_ROUNDEDTRACKSCORNER_T )
continue;
#endif
if( pad->HitTest( cp_item->GetPoint() ) )
{
if( add_to_padlist )
cp_item->GetTrack()->m_PadsConnected.push_back( pad );
if( add_to_tracklist )
pad->m_TracksConnected.push_back( cp_item->GetTrack() );
}
}
}
}
void CONNECTIONS::CollectItemsNearTo( std::vector<CONNECTED_POINT*>& aList,
const wxPoint& aPosition, int aDistMax )
{
/* Search items in m_Candidates that position is <= aDistMax from aPosition
* (Rectilinear distance)
* m_Candidates is sorted by X then Y values, so a fast binary search is used
* to locate the "best" entry point in list
* The best entry is a pad having its m_Pos.x == (or near) aPosition.x
* All candidates are near this candidate in list
* So from this entry point, a linear search is made to find all candidates
*/
int idxmax = m_candidates.size()-1;
int delta = m_candidates.size();
int idx = 0; // Starting index is the beginning of list
while( delta )
{
// Calculate half size of remaining interval to test.
// Ensure the computed value is not truncated (too small)
if( (delta & 1) && ( delta > 1 ) )
delta++;
delta /= 2;
CONNECTED_POINT& item = m_candidates[idx];
int dist = item.GetPoint().x - aPosition.x;
if( abs(dist) <= aDistMax )
{
break; // A good entry point is found. The list can be scanned from this point.
}
else if( item.GetPoint().x < aPosition.x ) // We should search after this item
{
idx += delta;
if( idx > idxmax )
idx = idxmax;
}
else // We should search before this item
{
idx -= delta;
if( idx < 0 )
idx = 0;
}
}
/* Now explore the candidate list from the "best" entry point found
* (candidate "near" aPosition.x)
* We explore the list until abs(candidate->m_Point.x - aPosition.x) > aDistMax
* because the list is sorted by X position (and for a given X pos, by Y pos)
* Currently a linear search is made because the number of candidates
* having the right X position is usually small
*/
// search next candidates in list
wxPoint diff;
for( int ii = idx; ii <= idxmax; ii++ )
{
CONNECTED_POINT* item = &m_candidates[ii];
diff = item->GetPoint() - aPosition;
if( abs(diff.x) > aDistMax )
break; // Exit: the distance is to long, we cannot find other candidates
if( abs(diff.y) > aDistMax )
continue; // the y distance is to long, but we can find other candidates
// We have here a good candidate: add it
aList.push_back( item );
}
// search previous candidates in list
for( int ii = idx-1; ii >=0; ii-- )
{
CONNECTED_POINT * item = &m_candidates[ii];
diff = item->GetPoint() - aPosition;
if( abs(diff.x) > aDistMax )
break;
if( abs(diff.y) > aDistMax )
continue;
// We have here a good candidate:add it
aList.push_back( item );
}
}
void CONNECTIONS::BuildPadsCandidatesList()
{
m_candidates.clear();
m_candidates.reserve( m_sortedPads.size() );
for( unsigned ii = 0; ii < m_sortedPads.size(); ii++ )
{
D_PAD * pad = m_sortedPads[ii];
CONNECTED_POINT candidate( pad, pad->GetPosition() );
m_candidates.push_back( candidate );
}
}
/* sort function used to sort .m_Connected by X the Y values
* items are sorted by X coordinate value,
* and for same X value, by Y coordinate value.
*/
static bool sortConnectedPointByXthenYCoordinates( const CONNECTED_POINT & aRef,
const CONNECTED_POINT & aTst )
{
if( aRef.GetPoint().x == aTst.GetPoint().x )
return aRef.GetPoint().y < aTst.GetPoint().y;
return aRef.GetPoint().x < aTst.GetPoint().x;
}
void CONNECTIONS::BuildTracksCandidatesList( TRACK* aBegin, TRACK* aEnd)
{
m_candidates.clear();
m_firstTrack = m_lastTrack = aBegin;
unsigned ii = 0;
// Count candidates ( i.e. end points )
for( const TRACK* track = aBegin; track; track = track->Next() )
{
if( track->Type() == PCB_VIA_T )
ii++;
else
ii += 2;
m_lastTrack = track;
if( track == aEnd )
break;
}
// Build candidate list
m_candidates.reserve( ii );
for( TRACK* track = aBegin; track; track = track->Next() )
{
#ifdef PCBNEW_WITH_TEARDROPS
wxPoint start_point = track->GetStart();
if(dynamic_cast<TrackNodeItem::ROUNDEDTRACKSCORNER*>(track))
start_point = dynamic_cast<TrackNodeItem::ROUNDEDTRACKSCORNER*>(track)->GetStartVisible();
if(dynamic_cast<ROUNDEDCORNERTRACK*>(track))
start_point = dynamic_cast<ROUNDEDCORNERTRACK*>(track)->GetStartVisible();
CONNECTED_POINT candidate( track, start_point );
m_candidates.push_back( candidate );
if( track->Type() == PCB_TRACE_T )
{
wxPoint end_point = track->GetEnd();
if(dynamic_cast<TrackNodeItem::ROUNDEDTRACKSCORNER*>(track))
end_point = dynamic_cast<TrackNodeItem::ROUNDEDTRACKSCORNER*>(track)->GetEndVisible();
if(dynamic_cast<ROUNDEDCORNERTRACK*>(track))
end_point = dynamic_cast<ROUNDEDCORNERTRACK*>(track)->GetEndVisible();
CONNECTED_POINT candidate2( track, end_point );
m_candidates.push_back( candidate2 );
}
#else
CONNECTED_POINT candidate( track, track->GetStart() );
m_candidates.push_back( candidate );
if( track->Type() != PCB_VIA_T )
{
CONNECTED_POINT candidate2( track, track->GetEnd());
m_candidates.push_back( candidate2 );
}
#endif
if( track == aEnd )
break;
}
// Sort list by increasing X coordinate,
// and for increasing Y coordinate when items have the same X coordinate
// So candidates to the same location are consecutive in list.
sort( m_candidates.begin(), m_candidates.end(), sortConnectedPointByXthenYCoordinates );
}
/* Populates .m_connected with tracks/vias connected to aTrack
* param aTrack = track or via to use as reference
* For calculation time reason, an exhaustive search cannot be made
* and a proximity search is made:
* Only tracks with one end near one end of aTrack are collected.
* near means dist <= aTrack width / 2
* because with this constraint we can make a fast search in track list
* m_candidates is expected to be populated by the track candidates ends list
*/
int CONNECTIONS::SearchConnectedTracks( const TRACK* aTrack )
{
int count = 0;
m_connected.clear();
LSET layerMask = aTrack->GetLayerSet();
// Search for connections to starting point:
#define USE_EXTENDED_SEARCH
#ifdef USE_EXTENDED_SEARCH
int dist_max = aTrack->GetWidth() / 2;
static std::vector<CONNECTED_POINT*> tracks_candidates;
#endif
wxPoint position = aTrack->GetStart();
#ifdef PCBNEW_WITH_TEARDROPS
if(dynamic_cast<TrackNodeItem::ROUNDEDTRACKSCORNER*>(const_cast<TRACK*>(aTrack)))
position = dynamic_cast<TrackNodeItem::ROUNDEDTRACKSCORNER*>(const_cast<TRACK*>(aTrack))->GetStartVisible();
if(dynamic_cast<ROUNDEDCORNERTRACK*>(const_cast<TRACK*>(aTrack)))
position = dynamic_cast<ROUNDEDCORNERTRACK*>(const_cast<TRACK*>(aTrack))->GetStartVisible();
#endif
for( int kk = 0; kk < 2; kk++ )
{
#ifndef USE_EXTENDED_SEARCH
int idx = searchEntryPointInCandidatesList( position );
if( idx >= 0 )
{
// search after:
for( unsigned ii = idx; ii < m_candidates.size(); ii ++ )
{
if( m_candidates[ii].GetTrack() == aTrack )
continue;
if( m_candidates[ii].GetPoint() != position )
break;
if( ( m_candidates[ii].GetTrack()->GetLayerSet() & layerMask ).any() )
m_connected.push_back( m_candidates[ii].GetTrack() );
}
// search before:
for( int ii = idx-1; ii >= 0; ii -- )
{
if( m_candidates[ii].GetTrack() == aTrack )
continue;
if( m_candidates[ii].GetPoint() != position )
break;
if( ( m_candidates[ii].GetTrack()->GetLayerSet() & layerMask ).any() )
m_connected.push_back( m_candidates[ii].GetTrack() );
}
}
#else
tracks_candidates.clear();
CollectItemsNearTo( tracks_candidates, position, dist_max );
for( unsigned ii = 0; ii < tracks_candidates.size(); ii++ )
{
TRACK* ctrack = tracks_candidates[ii]->GetTrack();
if( !( ctrack->GetLayerSet() & layerMask ).any() )
continue;
if( ctrack == aTrack )
continue;
#ifdef PCBNEW_WITH_TEARDROPS
//Do not connect teardrop.
if( ctrack->Type() == PCB_TEARDROP_T )
continue;
#endif
// We have a good candidate: calculate the actual distance
// between ends, which should be <= dist max.
wxPoint delta = tracks_candidates[ii]->GetPoint() - position;
int dist = KiROUND( EuclideanNorm( delta ) );
if( dist > dist_max )
continue;
m_connected.push_back( ctrack );
}
#endif
// Search for connections to ending point:
if( aTrack->Type() == PCB_VIA_T )
break;
position = aTrack->GetEnd();
#ifdef PCBNEW_WITH_TEARDROPS
if(dynamic_cast<TrackNodeItem::ROUNDEDTRACKSCORNER*>(const_cast<TRACK*>(aTrack)))
position = dynamic_cast<TrackNodeItem::ROUNDEDTRACKSCORNER*>(const_cast<TRACK*>(aTrack))->GetEndVisible();
if(dynamic_cast<ROUNDEDCORNERTRACK*>(const_cast<TRACK*>(aTrack)))
position = dynamic_cast<ROUNDEDCORNERTRACK*>(const_cast<TRACK*>(aTrack))->GetEndVisible();
#endif
}
return count;
}
int CONNECTIONS::searchEntryPointInCandidatesList( const wxPoint& aPoint )
{
// Search the aPoint coordinates in m_Candidates
// m_Candidates is sorted by X then Y values, and a fast binary search is used
int idxmax = m_candidates.size()-1;
int delta = m_candidates.size();
int idx = 0; // Starting index is the beginning of list
while( delta )
{
// Calculate half size of remaining interval to test.
// Ensure the computed value is not truncated (too small)
if( ( delta & 1 ) && ( delta > 1 ) )
delta++;
delta /= 2;
CONNECTED_POINT& candidate = m_candidates[idx];
if( candidate.GetPoint() == aPoint ) // candidate found
{
return idx;
}
// Not found: test the middle of the remaining sub list
if( candidate.GetPoint().x == aPoint.x ) // Must search considering Y coordinate
{
if(candidate.GetPoint().y < aPoint.y) // Must search after this item
{
idx += delta;
if( idx > idxmax )
idx = idxmax;
}
else // Must search before this item
{
idx -= delta;
if( idx < 0 )
idx = 0;
}
}
else if( candidate.GetPoint().x < aPoint.x ) // Must search after this item
{
idx += delta;
if( idx > idxmax )
idx = idxmax;
}
else // Must search before this item
{
idx -= delta;
if( idx < 0 )
idx = 0;
}
}
return -1;
}
/* Used after a track change (delete a track ou add a track)
* Connections to pads are recalculated
* Note also aFirstTrack (and aLastTrack ) can be NULL
*/
void CONNECTIONS::Build_CurrNet_SubNets_Connections( TRACK* aFirstTrack, TRACK* aLastTrack, int aNetcode )
{
m_firstTrack = aFirstTrack; // The first track used to build m_Candidates
m_lastTrack = aLastTrack; // The last track used to build m_Candidates
// Pads subnets are expected already cleared, because this function
// does not know the full list of pads
BuildTracksCandidatesList( aFirstTrack, aLastTrack );
TRACK* curr_track;
for( curr_track = aFirstTrack; curr_track != NULL; curr_track = curr_track->Next() )
{
// Clear track subnet id (Pads subnets are cleared outside this function)
curr_track->SetSubNet( 0 );
curr_track->m_TracksConnected.clear();
curr_track->m_PadsConnected.clear();
// Update connections between tracks:
SearchConnectedTracks( curr_track );
curr_track->m_TracksConnected = m_connected;
if( curr_track == aLastTrack )
break;
}
// Update connections between tracks and pads
BuildPadsList( aNetcode );
SearchTracksConnectedToPads();
// Update connections between intersecting pads (no tracks)
SearchConnectionsPadsToIntersectingPads();
// Creates sub nets (clusters) for the current net:
Propagate_SubNets();
}
/**
* Change a subnet value to a new value, in m_sortedPads pad list
* After that, 2 cluster (or subnets) are merged into only one.
* Note: the resulting subnet value is the smallest between aOldSubNet et aNewSubNet
*/
int CONNECTIONS::Merge_PadsSubNets( int aOldSubNet, int aNewSubNet )
{
int change_count = 0;
if( aOldSubNet == aNewSubNet )
return 0;
if( (aOldSubNet > 0) && (aOldSubNet < aNewSubNet) )
std::swap( aOldSubNet, aNewSubNet );
// Examine connections between intersecting pads
for( unsigned ii = 0; ii < m_sortedPads.size(); ii++ )
{
D_PAD * curr_pad = m_sortedPads[ii];
if( curr_pad->GetSubNet() != aOldSubNet )
continue;
change_count++;
curr_pad->SetSubNet( aNewSubNet );
}
return change_count;
}
/*
* Change a subnet value to a new value, for tracks and pads which are connected to.
* The result is merging 2 clusters (or subnets) into only one cluster.
* Note: the resulting sub net value is the smallest between aOldSubNet et aNewSubNet
*/
int CONNECTIONS::Merge_SubNets( int aOldSubNet, int aNewSubNet )
{
TRACK* curr_track;
int change_count = 0;
if( aOldSubNet == aNewSubNet )
return 0;
if( (aOldSubNet > 0) && (aOldSubNet < aNewSubNet) )
std::swap( aOldSubNet, aNewSubNet );
curr_track = (TRACK*)m_firstTrack;
for( ; curr_track != NULL; curr_track = curr_track->Next() )
{
if( curr_track->GetSubNet() != aOldSubNet )
{
if( curr_track == m_lastTrack )
break;
continue;
}
change_count++;
curr_track->SetSubNet( aNewSubNet );
for( unsigned ii = 0; ii < curr_track->m_PadsConnected.size(); ii++ )
{
D_PAD * pad = curr_track->m_PadsConnected[ii];
if( pad->GetSubNet() == aOldSubNet )
{
pad->SetSubNet( curr_track->GetSubNet() );
}
}
if( curr_track == m_lastTrack )
break;
}
return change_count;
}
/* Test a list of track segments, to create or propagate a sub netcode to pads and
* segments connected together.
* The track list must be sorted by nets, and all segments
* from m_firstTrack to m_lastTrack have the same net
* When 2 items are connected (a track to a pad, or a track to an other track),
* they are grouped in a cluster.
* The .m_Subnet member is the cluster identifier (subnet id)
* For a given net, if all tracks are created, there is only one cluster.
* but if not all tracks are created, there are more than one cluster,
* and some ratsnests will be left active.
* A ratsnest is active when it "connect" 2 items having different subnet id
*/
void CONNECTIONS::Propagate_SubNets()
{
int sub_netcode = 1;
TRACK* curr_track = (TRACK*)m_firstTrack;
if( curr_track )
curr_track->SetSubNet( sub_netcode );
// Examine connections between tracks and pads
for( ; curr_track != NULL; curr_track = curr_track->Next() )
{
// First: handling connections to pads
for( unsigned ii = 0; ii < curr_track->m_PadsConnected.size(); ii++ )
{
D_PAD * pad = curr_track->m_PadsConnected[ii];
if( curr_track->GetSubNet() ) // the track segment is already a cluster member
{
if( pad->GetSubNet() > 0 )
{
// The pad is already a cluster member, so we can merge the 2 clusters
Merge_SubNets( pad->GetSubNet(), curr_track->GetSubNet() );
}
else
{
/* The pad is not yet attached to a cluster , so we can add this pad to
* the cluster */
pad->SetSubNet( curr_track->GetSubNet() );
}
}
else // the track segment is not attached to a cluster
{
if( pad->GetSubNet() > 0 )
{
// it is connected to a pad in a cluster, merge this track
curr_track->SetSubNet( pad->GetSubNet() );
}
else
{
/* it is connected to a pad not in a cluster, so we must create a new
* cluster (only with the 2 items: the track and the pad) */
sub_netcode++;
curr_track->SetSubNet( sub_netcode );
pad->SetSubNet( curr_track->GetSubNet() );
}
}
}
// Test connections between segments
for( unsigned ii = 0; ii < curr_track->m_TracksConnected.size(); ii++ )
{
BOARD_CONNECTED_ITEM* track = curr_track->m_TracksConnected[ii];
if( curr_track->GetSubNet() ) // The current track is already a cluster member
{
// The other track is already a cluster member, so we can merge the 2 clusters
if( track->GetSubNet() )
{
Merge_SubNets( track->GetSubNet(), curr_track->GetSubNet() );
}
else
{
// The other track is not yet attached to a cluster , so we can add this
// other track to the cluster
track->SetSubNet( curr_track->GetSubNet() );
}
}
else // the current track segment is not yet attached to a cluster
{
if( track->GetSubNet() )
{
// The other track is already a cluster member, so we can add
// the current segment to the cluster
curr_track->SetSubNet( track->GetSubNet() );
}
else
{
// it is connected to an other segment not in a cluster, so we must
// create a new cluster (only with the 2 track segments)
sub_netcode++;
curr_track->SetSubNet( sub_netcode );
track->SetSubNet( curr_track->GetSubNet() );
}
}
}
if( curr_track == m_lastTrack )
break;
}
// Examine connections between intersecting pads, and propagate
// sub_netcodes to intersecting pads
for( unsigned ii = 0; ii < m_sortedPads.size(); ii++ )
{
D_PAD* curr_pad = m_sortedPads[ii];
for( unsigned jj = 0; jj < curr_pad->m_PadsConnected.size(); jj++ )
{
D_PAD* pad = curr_pad->m_PadsConnected[jj];
if( curr_pad->GetSubNet() ) // the current pad is already attached to a cluster
{
if( pad->GetSubNet() > 0 )
{
// The pad is already a cluster member, so we can merge the 2 clusters
// Store the initial subnets, which will be modified by Merge_PadsSubNets
int subnet1 = pad->GetSubNet();
int subnet2 = curr_pad->GetSubNet();
// merge subnets of pads only, even those not connected by tracks
Merge_PadsSubNets( subnet1, subnet2 );
// merge subnets of tracks (and pads, which are already merged)
Merge_SubNets( subnet1, subnet2 );
}
else
{
// The pad is not yet attached to a cluster,
// so we can add this pad to the cluster
pad->SetSubNet( curr_pad->GetSubNet() );
}
}
else // the current pad is not attached to a cluster
{
if( pad->GetSubNet() > 0 )
{
// the connected pad is in a cluster,
// so we can add the current pad to the cluster
curr_pad->SetSubNet( pad->GetSubNet() );
}
else
{
// the connected pad is not in a cluster,
// so we must create a new cluster, with the 2 pads.
sub_netcode++;
curr_pad->SetSubNet( sub_netcode );
pad->SetSubNet( curr_pad->GetSubNet() );
}
}
}
}
}
/*
* Test all connections of the board,
* and update subnet variable of pads and tracks
* TestForActiveLinksInRatsnest must be called after this function
* to update active/inactive ratsnest items status
*/
void PCB_BASE_FRAME::TestConnections()
{
// Clear the cluster identifier for all pads
for( unsigned i = 0; i< m_Pcb->GetPadCount(); ++i )
{
D_PAD* pad = m_Pcb->GetPad(i);
pad->SetZoneSubNet( 0 );
pad->SetSubNet( 0 );
}
m_Pcb->Test_Connections_To_Copper_Areas();
// Test existing connections net by net
// note some nets can have no tracks, and pads intersecting
// so Build_CurrNet_SubNets_Connections must be called for each net
CONNECTIONS connections( m_Pcb );
int last_net_tested = 0;
int current_net_code = 0;
for( TRACK* track = m_Pcb->m_Track; track; )
{
// At this point, track is the first track of a given net
current_net_code = track->GetNetCode();
// Get last track of the current net
TRACK* lastTrack = track->GetEndNetCode( current_net_code );
if( current_net_code > 0 ) // do not spend time if net code = 0 ( dummy net )
{
// Test all previous nets having no tracks
for( int net = last_net_tested+1; net < current_net_code; net++ )
connections.Build_CurrNet_SubNets_Connections( NULL, NULL, net );
connections.Build_CurrNet_SubNets_Connections( track, lastTrack, current_net_code );
last_net_tested = current_net_code;
}
track = lastTrack->Next(); // this is now the first track of the next net
}
// Test last nets without tracks, if any
int netsCount = m_Pcb->GetNetCount();
for( int net = last_net_tested+1; net < netsCount; net++ )
connections.Build_CurrNet_SubNets_Connections( NULL, NULL, net );
Merge_SubNets_Connected_By_CopperAreas( m_Pcb );
return;
}
void PCB_BASE_FRAME::TestNetConnection( wxDC* aDC, int aNetCode )
{
// Skip dummy net -1, and "not connected" net 0 (grouping all not connected pads)
if( aNetCode <= 0 )
return;
if( (m_Pcb->m_Status_Pcb & LISTE_RATSNEST_ITEM_OK) == 0 )
Compile_Ratsnest( aDC, true );
// Clear the cluster identifier (subnet) of pads for this net
// Pads are grouped by netcode (and in netname alphabetic order)
for( unsigned i = 0; i < m_Pcb->GetPadCount(); ++i )
{
D_PAD* pad = m_Pcb->GetPad(i);
if( m_Pcb->GetPad(i)->GetNetCode() == aNetCode )
pad->SetSubNet( 0 );
}
m_Pcb->Test_Connections_To_Copper_Areas( aNetCode );
// Search for the first and the last segment relative to the given net code
if( m_Pcb->m_Track )
{
CONNECTIONS connections( m_Pcb );
TRACK* lastTrack = NULL;
TRACK* firstTrack = m_Pcb->m_Track.GetFirst()->GetStartNetCode( aNetCode );
if( firstTrack )
lastTrack = firstTrack->GetEndNetCode( aNetCode );
if( firstTrack && lastTrack ) // i.e. if there are segments
{
connections.Build_CurrNet_SubNets_Connections( firstTrack, lastTrack, aNetCode );
}
}
Merge_SubNets_Connected_By_CopperAreas( m_Pcb, aNetCode );
// rebuild the active ratsnest for this net
DrawGeneralRatsnest( aDC, aNetCode );
TestForActiveLinksInRatsnest( aNetCode );
DrawGeneralRatsnest( aDC, aNetCode );
// Display results
wxString msg;
int net_notconnected_count = 0;
NETINFO_ITEM* net = m_Pcb->FindNet( aNetCode );
if( net ) // Should not occur, but ...
{
for( unsigned ii = net->m_RatsnestStartIdx; ii < net->m_RatsnestEndIdx; ii++ )
{
if( m_Pcb->m_FullRatsnest[ii].IsActive() )
net_notconnected_count++;
}
msg.Printf( wxT( "links %d nc %d net %d: not conn %d" ),
m_Pcb->GetRatsnestsCount(), m_Pcb->GetUnconnectedNetCount(), aNetCode,
net_notconnected_count );
}
else
msg.Printf( wxT( "net not found: netcode %d" ), aNetCode );
SetStatusText( msg );
return;
}
/* search connections between tracks and pads and propagate pad net codes to the track
* segments.
* Pads netcodes are assumed to be up to date.
*/
void PCB_BASE_FRAME::RecalculateAllTracksNetcode()
{
// Build the net info list
GetBoard()->BuildListOfNets();
#ifdef PCBNEW_WITH_TEARDROPS
// Via Stitching. Temp container.
std::unordered_map<const VIA*, int> collected_vias;
collected_vias.clear();
#endif
// Reset variables and flags used in computation
for( TRACK* t = m_Pcb->m_Track; t; t = t->Next() )
{
#ifdef PCBNEW_WITH_TEARDROPS
// Via Stitching. Collect Vias.
const VIA* via = dynamic_cast<const VIA*>( t );
if( via )
collected_vias.insert( std::pair<const VIA*, int> ( via, t->GetNetCode() ) );
#endif
t->m_TracksConnected.clear();
t->m_PadsConnected.clear();
t->start = NULL;
t->end = NULL;
t->SetState( BUSY | IN_EDIT | BEGIN_ONPAD | END_ONPAD, false );
t->SetZoneSubNet( 0 );
t->SetNetCode( NETINFO_LIST::UNCONNECTED );
}
// If no pad, reset pointers and netcode, and do nothing else
if( m_Pcb->GetPadCount() == 0 )
return;
CONNECTIONS connections( m_Pcb );
connections.BuildPadsList();
connections.BuildTracksCandidatesList(m_Pcb->m_Track);
// First pass: build connections between track segments and pads.
connections.SearchTracksConnectedToPads();
// For tracks connected to at least one pad,
// set the track net code to the pad netcode
for( TRACK* t = m_Pcb->m_Track; t; t = t->Next() )
{
#ifdef PCBNEW_WITH_TEARDROPS
if( ViaStitching::IsThermalVia( t ) )
continue;
#endif
if( t->m_PadsConnected.size() )
t->SetNetCode( t->m_PadsConnected[0]->GetNetCode() );
}
// Pass 2: build connections between track ends
for( TRACK* t = m_Pcb->m_Track; t; t = t->Next() )
{
#ifdef PCBNEW_WITH_TEARDROPS
if( ViaStitching::IsThermalVia( t ) )
continue;
#endif
connections.SearchConnectedTracks( t );
connections.GetConnectedTracks( t );
}
// Propagate net codes from a segment to other connected segments
bool new_pass_request = true; // set to true if a track has its netcode changed from 0
// to a known netcode to re-evaluate netcodes
// of connected items
while( new_pass_request )
{
new_pass_request = false;
for( TRACK* t = m_Pcb->m_Track; t; t = t->Next() )
{
#ifdef PCBNEW_WITH_TEARDROPS
if( ViaStitching::IsThermalVia( t ) )
continue;
#endif
int netcode = t->GetNetCode();
if( netcode == 0 )
{
// try to find a connected item having a netcode
for( unsigned kk = 0; kk < t->m_TracksConnected.size(); kk++ )
{
int altnetcode = t->m_TracksConnected[kk]->GetNetCode();
if( altnetcode )
{
new_pass_request = true;
netcode = altnetcode;
t->SetNetCode(netcode);
break;
}
}
}
if( netcode ) // this track has a netcode
{
// propagate this netcode to connected tracks having no netcode
for( unsigned kk = 0; kk < t->m_TracksConnected.size(); kk++ )
{
int altnetcode = t->m_TracksConnected[kk]->GetNetCode();
if( altnetcode == 0 )
{
t->m_TracksConnected[kk]->SetNetCode(netcode);
new_pass_request = true;
}
}
}
}
}
#ifdef PCBNEW_WITH_TEARDROPS
//Via Stitching. Set netcode to thermal vias.
m_Pcb->ViaStitching()->SetNetcodes( collected_vias );
#endif
if( IsGalCanvasActive() )
{
/// @todo LEGACY tracks might have changed their nets, so we need to refresh labels in GAL
for( TRACK* track = m_Pcb->m_Track; track; track = track->Next() )
GetGalCanvas()->GetView()->Update( track );
}
// Sort the track list by net codes:
RebuildTrackChain( m_Pcb );
}
/*
* Function SortTracksByNetCode used in RebuildTrackChain()
* to sort track segments by net code.
*/
static bool SortTracksByNetCode( const TRACK* const & ref, const TRACK* const & compare )
{
// For items having the same Net, keep the order in list
if( ref->GetNetCode() == compare->GetNetCode())
return ref->m_Param < compare->m_Param;
return ref->GetNetCode() < compare->GetNetCode();
}
/**
* Helper function RebuildTrackChain
* rebuilds the track segment linked list in order to have a chain
* sorted by increasing netcodes.
* We try to keep order of track segments in list, when possible
* @param pcb = board to rebuild
*/
static void RebuildTrackChain( BOARD* pcb )
{
if( pcb->m_Track == NULL )
return;
int item_count = pcb->m_Track.GetCount();
std::vector<TRACK*> trackList;
trackList.reserve( item_count );
// Put track list in a temporary list to sort tracks by netcode
// We try to keep the initial order of track segments in list, when possible
// so we use m_Param (a member variable used for temporary storage)
// to temporary keep trace of the order of segments
// The sort function uses this variable to sort items that
// have the same net code.
// Without this, during sorting, the initial order is sometimes lost
// by the sort algorithm
for( int ii = 0; ii < item_count; ++ii )
{
pcb->m_Track->m_Param = ii;
trackList.push_back( pcb->m_Track.PopFront() );
}
// the list is empty now
wxASSERT( pcb->m_Track == NULL && pcb->m_Track.GetCount()==0 );
sort( trackList.begin(), trackList.end(), SortTracksByNetCode );
// add them back to the list
for( int i = 0; i < item_count; ++i )
pcb->m_Track.PushBack( trackList[i] );
}
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