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Pcbnew: rework on connection calculation: fix an issue for "composite" pads (complex pad build by association of some basic pads): 

sometimes connections where not seen.
This commit is contained in:
jean-pierre charras 2013-02-07 18:40:50 +01:00
parent da757938e6
commit f2ebfdf34e
1 changed files with 55 additions and 46 deletions
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101
pcbnew/connect.cpp
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@ -346,7 +346,7 @@ int CONNECTIONS::SearchConnectedTracks( const TRACK * aTrack )
continue;
// We have a good candidate: calculate the actual distance
// beteween ends, which should be <= dist max.
// between ends, which should be <= dist max.
wxPoint delta = tracks_candidates[ii]->GetPoint() - position;
int dist = (int) hypot( (double) delta.x, (double) delta.y );
@ -495,7 +495,7 @@ int CONNECTIONS::Merge_PadsSubNets( int aOldSubNet, int aNewSubNet )
/*
* 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 resultig sub net value is the smallest between aOldSubNet et aNewSubNet
* Note: the resulting sub net value is the smallest between aOldSubNet et aNewSubNet
*/
int CONNECTIONS::Merge_SubNets( int aOldSubNet, int aNewSubNet )
{
@ -527,8 +527,10 @@ int CONNECTIONS::Merge_SubNets( int aOldSubNet, int aNewSubNet )
{
D_PAD * pad = curr_track->m_PadsConnected[ii];
if( pad->GetSubNet() == aOldSubNet )
{
pad->SetSubNet( curr_track->GetSubNet() );
}
}
if( curr_track == m_lastTrack )
break;
@ -544,57 +546,16 @@ int CONNECTIONS::Merge_SubNets( int aOldSubNet, int aNewSubNet )
* 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.
* For pads, this is the .m_physical_connexion member which is a cluster identifier
* For tracks, this is the .m_Subnet member which is a cluster identifier
* 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 = 0;
int sub_netcode = 1;
// Examine connections between 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() )
{
if( pad->GetSubNet() > 0 )
{
// The pad is already a cluster member, so we can merge the 2 clusters
Merge_PadsSubNets( pad->GetSubNet(), curr_pad->GetSubNet() );
}
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 )
{
// it is connected to a pad in a cluster, merge this pad
curr_pad->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 pads.
sub_netcode++;
curr_pad->SetSubNet( sub_netcode );
pad->SetSubNet( curr_pad->GetSubNet() );
}
}
}
}
sub_netcode++;
TRACK* curr_track = (TRACK*)m_firstTrack;
if( curr_track )
curr_track->SetSubNet( sub_netcode );
@ -679,6 +640,54 @@ void CONNECTIONS::Propagate_SubNets()
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() );
}
}
}
}
}
/*