bool PNS_LINE_PLACER::FixRoute( const VECTOR2I& aP, PNS_ITEM* aEndItem )
{
bool realEnd = false;
int lastV;
PNS_LINE pl = Trace();
if( m_currentMode == RM_MarkObstacles &&
!Settings().CanViolateDRC() &&
m_world->CheckColliding( &pl ) )
return false;
const SHAPE_LINE_CHAIN& l = pl.CLine();
if( !l.SegmentCount() )
{
if( pl.EndsWithVia() )
{
m_lastNode->Add( pl.Via().Clone() );
Router()->CommitRouting( m_lastNode );
m_lastNode = NULL;
m_currentNode = NULL;
m_idle = true;
}
return true;
}
VECTOR2I p_pre_last = l.CPoint( -1 );
const VECTOR2I p_last = l.CPoint( -1 );
DIRECTION_45 d_last( l.CSegment( -1 ) );
if( l.PointCount() > 2 )
p_pre_last = l.CPoint( -2 );
if( aEndItem && m_currentNet >= 0 && m_currentNet == aEndItem->Net() )
realEnd = true;
if( realEnd || m_placingVia )
lastV = l.SegmentCount();
else
lastV = std::max( 1, l.SegmentCount() - 1 );
PNS_SEGMENT* lastSeg = NULL;
for( int i = 0; i < lastV; i++ )
{
const SEG& s = pl.CSegment( i );
PNS_SEGMENT* seg = new PNS_SEGMENT( s, m_currentNet );
seg->SetWidth( pl.Width() );
seg->SetLayer( m_currentLayer );
m_lastNode->Add( seg );
lastSeg = seg;
}
if( pl.EndsWithVia() )
m_lastNode->Add( pl.Via().Clone() );
if( realEnd )
simplifyNewLine( m_lastNode, lastSeg );
Router()->CommitRouting( m_lastNode );
m_lastNode = NULL;
m_currentNode = NULL;
if( !realEnd )
{
setInitialDirection( d_last );
m_currentStart = m_placingVia ? p_last : p_pre_last;
m_startItem = NULL;
m_placingVia = false;
m_chainedPlacement = !pl.EndsWithVia();
m_splitSeg = false;
initPlacement();
}
else
{
m_idle = true;
}
return realEnd;
}
bool PNS_LINE_PLACER::optimizeTailHeadTransition()
{
PNS_LINE tmp = Trace();
if( PNS_OPTIMIZER::Optimize( &tmp, PNS_OPTIMIZER::FANOUT_CLEANUP, m_currentNode ) )
{
if( tmp.SegmentCount() < 1 )
return false;
m_head = tmp;
m_p_start = tmp.CLine().CPoint( 0 );
m_direction = DIRECTION_45( tmp.CSegment( 0 ) );
m_tail.Line().Clear();
return true;
}
SHAPE_LINE_CHAIN& head = m_head.Line();
SHAPE_LINE_CHAIN& tail = m_tail.Line();
int tailLookbackSegments = 3;
//if(m_currentMode() == RM_Walkaround)
// tailLookbackSegments = 10000;
int threshold = std::min( tail.PointCount(), tailLookbackSegments + 1 );
if( tail.SegmentCount() < 3 )
return false;
// assemble TailLookbackSegments tail segments with the current head
SHAPE_LINE_CHAIN opt_line = tail.Slice( -threshold, -1 );
int end = std::min(2, head.PointCount() - 1 );
opt_line.Append( head.Slice( 0, end ) );
PNS_LINE new_head( m_tail, opt_line );
// and see if it could be made simpler by merging obtuse/collnear segments.
// If so, replace the (threshold) last tail points and the head with
// the optimized line
if( PNS_OPTIMIZER::Optimize( &new_head, PNS_OPTIMIZER::MERGE_OBTUSE, m_currentNode ) )
{
PNS_LINE tmp( m_tail, opt_line );
TRACE( 0, "Placer: optimize tail-head [%d]", threshold );
head.Clear();
tail.Replace( -threshold, -1, new_head.CLine() );
tail.Simplify();
m_p_start = new_head.CLine().CPoint( -1 );
m_direction = DIRECTION_45( new_head.CSegment( -1 ) );
return true;
}
return false;
}
