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Allow PNS to select nearest pad when two overlap 

Usually pads do not overlap.  However custom pads are represented as
their convex hull, so they may enclose other pads.  This change allows the
router to select the closest pad to the cursor position.
This commit is contained in:
Seth Hillbrand 2018-05-03 09:31:00 -07:00
parent 296ada95a3
commit 1ac905d3ee
1 changed files with 14 additions and 2 deletions
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16
pcbnew/router/pns_tool_base.cpp
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@ -122,9 +122,13 @@ ITEM* TOOL_BASE::pickSingleItem( const VECTOR2I& aWhere, int aNet, int aLayer, b
static const int candidateCount = 5;
ITEM* prioritized[candidateCount];
int dist[candidateCount];
for( int i = 0; i < candidateCount; i++ )
{
prioritized[i] = 0;
dist[i] = std::numeric_limits<int>::max();
}
ITEM_SET candidates = m_router->QueryHoverItems( aWhere );
@ -147,10 +151,18 @@ ITEM* TOOL_BASE::pickSingleItem( const VECTOR2I& aWhere, int aNet, int aLayer, b
if( item->OfKind( ITEM::SOLID_T ) && aIgnorePads )
continue;
if( !prioritized[2] )
int itemDist = ( item->Shape()->Centre() - aWhere ).SquaredEuclideanNorm();
if( !prioritized[2] || itemDist < dist[2] )
{
prioritized[2] = item;
if( item->Layers().Overlaps( tl ) )
dist[2] = itemDist;
}
if( item->Layers().Overlaps( tl ) && itemDist < dist[0] )
{
prioritized[0] = item;
dist[0] = itemDist;
}
}
else
{