Honour 90-degree router mode in a few more places.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/10421

pcbnew/router/pns_line_placer.cpp

@@ -807,10 +807,16 @@ bool LINE_PLACER::rhMarkObstacles( const VECTOR2I& aP, LINE& aNewHead, LINE& aNe
     // the shove/walk mode that certain users find too intrusive.
     if( obs )
     {
-        int cl = m_currentNode->GetClearance( obs->m_item, &m_head, false );
+        int              clearance = m_currentNode->GetClearance( obs->m_item, &m_head, false );
-        auto hull = obs->m_item->Hull( cl, m_head.Width() );
+        SHAPE_LINE_CHAIN hull = obs->m_item->Hull( clearance, m_head.Width() );
+        VECTOR2I         nearest;
 
-        auto nearest = hull.NearestPoint( aP );
+        DIRECTION_45::CORNER_MODE cornerMode = Settings().GetCornerMode();
+
+        if( cornerMode == DIRECTION_45::MITERED_90 || cornerMode == DIRECTION_45::ROUNDED_90 )
+            nearest = hull.BBox().ClosestPointTo( aP );
+        else
+            nearest = hull.NearestPoint( aP );
 
         if( ( nearest - aP ).EuclideanNorm() < m_head.Width() / 2 )
             buildInitialLine( nearest, m_head );

pcbnew/router/pns_node.cpp

@@ -283,6 +283,7 @@ int NODE::QueryColliding( const ITEM* aItem, NODE::OBSTACLES& aObstacles,
 NODE::OPT_OBSTACLE NODE::NearestObstacle( const LINE* aLine,
                                           const COLLISION_SEARCH_OPTIONS& aOpts )
 {
+    DIRECTION_45::CORNER_MODE cornerMode = ROUTER::GetInstance()->Settings().GetCornerMode();
     const int                 clearanceEpsilon = GetRuleResolver()->ClearanceEpsilon();
     OBSTACLES                 obstacleList;
     std::vector<SEGMENT>      tmpSegs;
@@ -335,10 +336,20 @@ NODE::OPT_OBSTACLE NODE::NearestObstacle( const LINE* aLine,
         if( aOpts.m_restrictedSet && !aOpts.m_restrictedSet->empty() && aOpts.m_restrictedSet->count( obstacle.m_item ) == 0 )
             continue;
 
-        int clearance =
+        int clearance = GetClearance( obstacle.m_item, aLine, aOpts.m_useClearanceEpsilon )
-            GetClearance( obstacle.m_item, aLine, aOpts.m_useClearanceEpsilon ) + aLine->Width() / 2;
+                            + aLine->Width() / 2;
 
         obstacleHull = obstacle.m_item->Hull( clearance, 0, layer );
+
+        if( cornerMode == DIRECTION_45::MITERED_90 || cornerMode == DIRECTION_45::ROUNDED_90 )
+        {
+            BOX2I bbox = obstacleHull.BBox();
+            obstacleHull.Clear();
+            obstacleHull.Append( bbox.GetLeft(),  bbox.GetTop()    );
+            obstacleHull.Append( bbox.GetRight(), bbox.GetTop()    );
+            obstacleHull.Append( bbox.GetRight(), bbox.GetBottom() );
+            obstacleHull.Append( bbox.GetLeft(),  bbox.GetBottom() );
+        }
         //debugDecorator->AddLine( obstacleHull, 2, 40000, "obstacle-hull-test" );
         //debugDecorator->AddLine( aLine->CLine(), 5, 40000, "obstacle-test-line" );
 
@@ -359,6 +370,16 @@ NODE::OPT_OBSTACLE NODE::NearestObstacle( const LINE* aLine,
                                + via.Diameter() / 2;
 
             obstacleHull = obstacle.m_item->Hull( viaClearance, 0, layer );
+
+            if( cornerMode == DIRECTION_45::MITERED_90 || cornerMode == DIRECTION_45::ROUNDED_90 )
+            {
+                BOX2I bbox = obstacleHull.BBox();
+                obstacleHull.Clear();
+                obstacleHull.Append( bbox.GetLeft(),  bbox.GetTop()    );
+                obstacleHull.Append( bbox.GetRight(), bbox.GetTop()    );
+                obstacleHull.Append( bbox.GetRight(), bbox.GetBottom() );
+                obstacleHull.Append( bbox.GetLeft(),  bbox.GetBottom() );
+            }
             //debugDecorator->AddLine( obstacleHull, 3 );
 
             intersectingPts.clear();

pcbnew/router/pns_optimizer.cpp

@@ -695,8 +695,11 @@ bool OPTIMIZER::mergeStep( LINE* aLine, SHAPE_LINE_CHAIN& aCurrentPath, int step
     if( aLine->SegmentCount() < 2 )
         return false;
 
-    DIRECTION_45 orig_start( aLine->CSegment( 0 ) );
+    DIRECTION_45::CORNER_MODE cornerMode = ROUTER::GetInstance()->Settings().GetCornerMode();
-    DIRECTION_45 orig_end( aLine->CSegment( -1 ) );
+    bool is90mode = cornerMode == DIRECTION_45::MITERED_90 || cornerMode == DIRECTION_45::ROUNDED_90;
+
+    DIRECTION_45 orig_start( aLine->CSegment( 0 ), is90mode );
+    DIRECTION_45 orig_end( aLine->CSegment( -1 ), is90mode );
 
 
     for( int n = 0; n < n_segs - step; n++ )
@@ -717,7 +720,7 @@ bool OPTIMIZER::mergeStep( LINE* aLine, SHAPE_LINE_CHAIN& aCurrentPath, int step
 
         for( int i = 0; i < 2; i++ )
         {
-            SHAPE_LINE_CHAIN bypass = DIRECTION_45().BuildInitialTrace( s1.A, s2.B, i );
+            SHAPE_LINE_CHAIN bypass = DIRECTION_45().BuildInitialTrace( s1.A, s2.B, i, cornerMode );
             cost[i] = INT_MAX;
 
             bool ok = false;
@@ -1111,6 +1114,8 @@ bool OPTIMIZER::fanoutCleanup( LINE* aLine )
     if( aLine->PointCount() < 3 )
         return false;
 
+    DIRECTION_45::CORNER_MODE cornerMode = ROUTER::GetInstance()->Settings().GetCornerMode();
+
     VECTOR2I p_start = aLine->CPoint( 0 ), p_end = aLine->CPoint( -1 );
 
     ITEM* startPad = findPadOrVia( aLine->Layer(), aLine->Net(), p_start );
@@ -1138,7 +1143,7 @@ bool OPTIMIZER::fanoutCleanup( LINE* aLine )
     {
         for( int i = 0; i < 2; i++ )
         {
-            SHAPE_LINE_CHAIN l2 = DIRECTION_45().BuildInitialTrace( p_start, p_end, i );
+            SHAPE_LINE_CHAIN l2 = DIRECTION_45().BuildInitialTrace( p_start, p_end, i, cornerMode );
             LINE repl;
             repl = LINE( *aLine, l2 );
 

pcbnew/router/pns_shove.cpp

@@ -1897,8 +1897,14 @@ void SHOVE::runOptimizer( NODE* aNode )
         optimizer.SetRestrictArea( *area, false );
     }
 
-    if( Settings().SmartPads() )
+    DIRECTION_45::CORNER_MODE cornerMode = Settings().GetCornerMode();
+
+    // Smart Pads is incompatible with 90-degree mode for now
+    if( Settings().SmartPads()
+            && ( cornerMode == DIRECTION_45::MITERED_45 || cornerMode == DIRECTION_45::ROUNDED_45 ) )
+    {
         optFlags |= OPTIMIZER::SMART_PADS;
+    }
 
 
     optimizer.SetEffortLevel( optFlags & ~m_optFlagDisableMask );

pcbnew/router/pns_walkaround.cpp

@@ -102,6 +102,18 @@ WALKAROUND::WALKAROUND_STATUS WALKAROUND::singleStep( LINE& aPath, bool aWinding
 
     SHAPE_LINE_CHAIN hull = current_obs->m_item->Hull( current_obs->m_clearance, aPath.Width() );
 
+    DIRECTION_45::CORNER_MODE cornerMode = Settings().GetCornerMode();
+
+    if( cornerMode == DIRECTION_45::MITERED_90 || cornerMode == DIRECTION_45::ROUNDED_90 )
+    {
+        BOX2I bbox = hull.BBox();
+        hull.Clear();
+        hull.Append( bbox.GetLeft(),  bbox.GetTop()    );
+        hull.Append( bbox.GetRight(), bbox.GetTop()    );
+        hull.Append( bbox.GetRight(), bbox.GetBottom() );
+        hull.Append( bbox.GetLeft(),  bbox.GetBottom() );
+    }
+
     bool s_cw = aPath.Walkaround( hull, path_walk, aWindingDirection );
 
     PNS_DBG( Dbg(), BeginGroup, "hull/walk", 1 );