static inline bool Collide( const SHAPE_CIRCLE& aA, const SHAPE_LINE_CHAIN& aB, int aClearance,
                            bool aNeedMTV, VECTOR2I& aMTV )
{
    bool found = false;

    for( int s = 0; s < aB.SegmentCount(); s++ )
    {
        if( aA.Collide( aB.CSegment( s ), aClearance ) )
        {
            found = true;
            break;
        }
    }

    if( !aNeedMTV || !found )
        return found;

    SHAPE_CIRCLE cmoved( aA );
    VECTOR2I f_total( 0, 0 );

    for( int s = 0; s < aB.SegmentCount(); s++ )
    {
        VECTOR2I f = pushoutForce( cmoved, aB.CSegment( s ), aClearance );
        cmoved.SetCenter( cmoved.GetCenter() + f );
        f_total += f;
    }

    aMTV = f_total;
    return found;
}
Ejemplo n.º 2
0
SHAPE_LINE_CHAIN dragCornerInternal( const SHAPE_LINE_CHAIN& aOrigin, const VECTOR2I& aP )
{
    optional<SHAPE_LINE_CHAIN> picked;
    int i;

    int d = 2;

    if( aOrigin.CSegment( -1 ).Length() > 100000 * 30 ) // fixme: constant/parameter?
        d = 1;

    for( i = aOrigin.SegmentCount() - d; i >= 0; i-- )
    {
        DIRECTION_45 d_start ( aOrigin.CSegment( i ) );
        VECTOR2I p_start = aOrigin.CPoint( i );
        SHAPE_LINE_CHAIN paths[2];
        DIRECTION_45 dirs[2];
        DIRECTION_45 d_prev = ( i > 0 ? DIRECTION_45( aOrigin.CSegment( i - 1 ) ) : DIRECTION_45() );

        for( int j = 0; j < 2; j++ )
        {
            paths[j] = d_start.BuildInitialTrace( p_start, aP, j );
            dirs[j] = DIRECTION_45( paths[j].CSegment( 0 ) );
        }

        for( int j = 0; j < 2; j++ )
        {
            if( dirs[j] == d_start )
            {
                picked = paths[j];
                break;
            }
        }

        if( picked )
            break;

        for( int j = 0; j < 2; j++ )
        {
            if( dirs[j].IsObtuse( d_prev ) )
            {
                picked = paths[j];
                break;
            }
        }

        if( picked )
            break;
    }

    if( picked )
    {
        SHAPE_LINE_CHAIN path = aOrigin.Slice( 0, i );
        path.Append( *picked );

        return path;
    }

    return DIRECTION_45().BuildInitialTrace( aOrigin.CPoint( 0 ), aP, true );
}
Ejemplo n.º 3
0
static bool checkGap( const SHAPE_LINE_CHAIN &p, const SHAPE_LINE_CHAIN &n, int gap )
{
    int i, j;

    for( i = 0; i < p.SegmentCount(); i++ )
    {
        for( j = 0; j < n.SegmentCount() ; j++ )
        {
            int dist = p.CSegment( i ).Distance( n.CSegment( j ) );

            if( dist  < gap - 100 )
                return false;
        }
    }

    return true;
}
Ejemplo n.º 4
0
void ROUTER_PREVIEW_ITEM::drawLineChain( const SHAPE_LINE_CHAIN& aL, KIGFX::GAL* aGal ) const
{
    for( int s = 0; s < aL.SegmentCount(); s++ )
        aGal->DrawLine( aL.CSegment( s ).A, aL.CSegment( s ).B );

    if( aL.IsClosed() )
        aGal->DrawLine( aL.CSegment( -1 ).B, aL.CSegment( 0 ).A );
}
bool PNS_LINE_PLACER::buildInitialLine( const VECTOR2I& aP, PNS_LINE& aHead )
{
    SHAPE_LINE_CHAIN l;

    if( m_p_start == aP )
    {
        l.Clear();
    }
    else
    {
        if( Settings().GetFreeAngleMode() && Settings().Mode() == RM_MarkObstacles )
        {
            l = SHAPE_LINE_CHAIN( m_p_start, aP );
        }
        else
        {
            l = m_direction.BuildInitialTrace( m_p_start, aP );
        }

        if( l.SegmentCount() > 1 && m_orthoMode )
        {
            VECTOR2I newLast = l.CSegment( 0 ).LineProject( l.CPoint( -1 ) );

            l.Remove( -1, -1 );
            l.Point( 1 ) = newLast;
        }
    }

    aHead.SetShape( l );

    if( !m_placingVia )
        return true;

    PNS_VIA v( makeVia( aP ) );
    v.SetNet( aHead.Net() );

    if( m_currentMode == RM_MarkObstacles )
    {
        aHead.AppendVia( v );
        return true;
    }

    VECTOR2I force;
    VECTOR2I lead = aP - m_p_start;

    bool solidsOnly = ( m_currentMode != RM_Walkaround );

    if( v.PushoutForce( m_currentNode, lead, force, solidsOnly, 40 ) )
    {
        SHAPE_LINE_CHAIN line = m_direction.BuildInitialTrace( m_p_start, aP + force );
        aHead = PNS_LINE( aHead, line );

        v.SetPos( v.Pos() + force );
        return true;
    }

    return false; // via placement unsuccessful
}
static inline bool Collide( const SHAPE_LINE_CHAIN& aA, const SHAPE_LINE_CHAIN& aB, int aClearance,
                            bool aNeedMTV, VECTOR2I& aMTV )
{
    for( int i = 0; i < aB.SegmentCount(); i++ )
        if( aA.Collide( aB.CSegment( i ), aClearance ) )
            return true;

    return false;
}
static inline bool Collide( const SHAPE_CIRCLE& aA, const SHAPE_LINE_CHAIN& aB, int aClearance,
                            bool aNeedMTV, VECTOR2I& aMTV )
{
    for( int s = 0; s < aB.SegmentCount(); s++ )
    {
        if( aA.Collide( aB.CSegment( s ), aClearance ) )
            return true;
    }

    return false;
}
int SHAPE_LINE_CHAIN::Intersect( const SHAPE_LINE_CHAIN& aChain, INTERSECTIONS& aIp ) const
{
    BOX2I bb_other = aChain.BBox();

    for( int s1 = 0; s1 < SegmentCount(); s1++ )
    {
        const SEG& a = CSegment( s1 );
        const BOX2I bb_cur( a.A, a.B - a.A );

        if( !bb_other.Intersects( bb_cur ) )
            continue;

        for( int s2 = 0; s2 < aChain.SegmentCount(); s2++ )
        {
            const SEG& b = aChain.CSegment( s2 );
            INTERSECTION is;

            if( a.Collinear( b ) )
            {
                is.our = a;
                is.their = b;

                if( a.Contains( b.A ) ) { is.p = b.A; aIp.push_back( is ); }
                if( a.Contains( b.B ) ) { is.p = b.B; aIp.push_back( is ); }
                if( b.Contains( a.A ) ) { is.p = a.A; aIp.push_back( is ); }
                if( b.Contains( a.B ) ) { is.p = a.B; aIp.push_back( is ); }
            }
            else
            {
                OPT_VECTOR2I p = a.Intersect( b );

                if( p )
                {
                    is.p = *p;
                    is.our = a;
                    is.their = b;
                    aIp.push_back( is );
                }
            }
        }
    }

    return aIp.size();
}
Ejemplo n.º 9
0
VECTOR2I PNS_LINE::snapToNeighbourSegments( const SHAPE_LINE_CHAIN& aPath, const VECTOR2I &aP,
                                            int aIndex, int aThreshold ) const
{
    VECTOR2I snap_p[2];
    DIRECTION_45 dragDir( aPath.CSegment( aIndex ) );
    int snap_d[2] = { -1, -1 };

    if( aThreshold == 0 )
        return aP;

    if( aIndex >= 2 )
    {
        SEG s = aPath.CSegment( aIndex - 2 );

        if( DIRECTION_45( s ) == dragDir )
            snap_d[0] = s.LineDistance( aP );

        snap_p[0] = s.A;
    }

    if( aIndex < aPath.SegmentCount() - 2 )
    {
        SEG s = aPath.CSegment( aIndex + 2 );

        if( DIRECTION_45( s ) == dragDir )
            snap_d[1] = s.LineDistance(aP);

        snap_p[1] = s.A;
    }

    VECTOR2I best = aP;
    int minDist = INT_MAX;

    for( int i = 0; i < 2; i++ )
    {
        if( snap_d[i] >= 0 && snap_d[i] < minDist && snap_d[i] <= aThreshold )
        {
            minDist = snap_d[i];
            best = snap_p[i];
        }
    }

    return best;
}
Ejemplo n.º 10
0
VECTOR2I PNS_LINE::snapDraggedCorner( const SHAPE_LINE_CHAIN& aPath, const VECTOR2I& aP,
                                      int aIndex, int aThreshold ) const
{
    int s_start = std::max( aIndex - 2, 0 );
    int s_end = std::min( aIndex + 2, aPath.SegmentCount() - 1 );

    int i, j;
    int best_dist = INT_MAX;
    VECTOR2I best_snap = aP;

    if( aThreshold <= 0 )
        return aP;

    for( i = s_start; i <= s_end; i++ )
    {
        const SEG& a = aPath.CSegment( i );

        for( j = s_start; j < i; j++ )
        {
            const SEG& b = aPath.CSegment( j );

            if( !( DIRECTION_45( a ).IsObtuse(DIRECTION_45( b ) ) ) )
                continue;

            OPT_VECTOR2I ip = a.IntersectLines(b);

            if( ip )
            {
                int dist = ( *ip - aP ).EuclideanNorm();

                if( dist < aThreshold && dist < best_dist )
                {
                    best_dist = dist;
                    best_snap = *ip;
                }
            }
        }
    }

    return best_snap;
}
Ejemplo n.º 11
0
PNS_WALKAROUND::WalkaroundStatus PNS_WALKAROUND::Route( const PNS_LINE& aInitialPath,
        PNS_LINE& aWalkPath,
        bool aOptimize )
{
    PNS_LINE path_cw( aInitialPath ), path_ccw( aInitialPath );
    WalkaroundStatus s_cw = IN_PROGRESS, s_ccw = IN_PROGRESS;
    SHAPE_LINE_CHAIN best_path;

    start( aInitialPath );

    m_currentObstacle[0] = m_currentObstacle[1] = nearestObstacle( aInitialPath );
    m_recursiveBlockageCount = 0;

    aWalkPath = aInitialPath;

    while( m_iteration < m_iteration_limit )
    {
        if( s_cw != STUCK )
            s_cw = singleStep( path_cw, true );

        if( s_ccw != STUCK )
            s_ccw = singleStep( path_ccw, false );

        if( ( s_cw == DONE && s_ccw == DONE ) || ( s_cw == STUCK && s_ccw == STUCK ) )
        {
            int len_cw  = path_cw.GetCLine().Length();
            int len_ccw = path_ccw.GetCLine().Length();

            if( m_forceLongerPath )
                aWalkPath = (len_cw > len_ccw ? path_cw : path_ccw);
            else
                aWalkPath = (len_cw < len_ccw ? path_cw : path_ccw);

            break;
        }
        else if( s_cw == DONE && !m_forceLongerPath )
        {
            aWalkPath = path_cw;
            break;
        }
        else if( s_ccw == DONE && !m_forceLongerPath )
        {
            aWalkPath = path_ccw;
            break;
        }

        m_iteration++;
    }

    if( m_iteration == m_iteration_limit )
    {
        int len_cw  = path_cw.GetCLine().Length();
        int len_ccw = path_ccw.GetCLine().Length();


        if( m_forceLongerPath )
            aWalkPath = (len_cw > len_ccw ? path_cw : path_ccw);
        else
            aWalkPath = (len_cw < len_ccw ? path_cw : path_ccw);
    }

    if( m_cursorApproachMode )
    {
        // int len_cw = path_cw.GetCLine().Length();
        // int len_ccw = path_ccw.GetCLine().Length();
        bool found = false;

        SHAPE_LINE_CHAIN l = aWalkPath.GetCLine();

        for( int i = 0; i < l.SegmentCount(); i++ )
        {
            const SEG s = l.Segment( i );

            VECTOR2I nearest = s.NearestPoint( m_cursorPos );
            VECTOR2I::extended_type dist_a = ( s.A - m_cursorPos ).SquaredEuclideanNorm();
            VECTOR2I::extended_type dist_b = ( s.B - m_cursorPos ).SquaredEuclideanNorm();
            VECTOR2I::extended_type dist_n = ( nearest - m_cursorPos ).SquaredEuclideanNorm();

            if( dist_n <= dist_a && dist_n < dist_b )
            {
                // PNSDisplayDebugLine( l, 3 );
                l.Remove( i + 1, -1 );
                l.Append( nearest );
                l.Simplify();
                found = true;
                break;
            }
        }

        if( found )
        {
            aWalkPath = aInitialPath;
            aWalkPath.SetShape( l );
        }
    }

    aWalkPath.SetWorld( m_world );
    aWalkPath.GetLine().Simplify();

    WalkaroundStatus st = s_ccw == DONE || s_cw == DONE ? DONE : STUCK;

    if( aOptimize && st == DONE )
        PNS_OPTIMIZER::Optimize( &aWalkPath, PNS_OPTIMIZER::MERGE_OBTUSE, m_world );

    return st;
}
WALKAROUND::WALKAROUND_STATUS WALKAROUND::Route( const LINE& aInitialPath,
        LINE& aWalkPath, bool aOptimize )
{
    LINE path_cw( aInitialPath ), path_ccw( aInitialPath );
    WALKAROUND_STATUS s_cw = IN_PROGRESS, s_ccw = IN_PROGRESS;
    SHAPE_LINE_CHAIN best_path;

    // special case for via-in-the-middle-of-track placement
    if( aInitialPath.PointCount() <= 1 )
    {
        if( aInitialPath.EndsWithVia() && m_world->CheckColliding( &aInitialPath.Via(), m_itemMask ) )
            return STUCK;

        aWalkPath = aInitialPath;
        return DONE;
    }

    start( aInitialPath );

    m_currentObstacle[0] = m_currentObstacle[1] = nearestObstacle( aInitialPath );
    m_recursiveBlockageCount = 0;

    aWalkPath = aInitialPath;

    if( m_forceWinding )
    {
        s_cw = m_forceCw ? IN_PROGRESS : STUCK;
        s_ccw = m_forceCw ? STUCK : IN_PROGRESS;
        m_forceSingleDirection = true;
    } else {
        m_forceSingleDirection = false;
    }

    while( m_iteration < m_iterationLimit )
    {
        if( s_cw != STUCK )
            s_cw = singleStep( path_cw, true );

        if( s_ccw != STUCK )
            s_ccw = singleStep( path_ccw, false );

        if( ( s_cw == DONE && s_ccw == DONE ) || ( s_cw == STUCK && s_ccw == STUCK ) )
        {
            int len_cw  = path_cw.CLine().Length();
            int len_ccw = path_ccw.CLine().Length();

            if( m_forceLongerPath )
                aWalkPath = ( len_cw > len_ccw ? path_cw : path_ccw );
            else
                aWalkPath = ( len_cw < len_ccw ? path_cw : path_ccw );

            break;
        }
        else if( s_cw == DONE && !m_forceLongerPath )
        {
            aWalkPath = path_cw;
            break;
        }
        else if( s_ccw == DONE && !m_forceLongerPath )
        {
            aWalkPath = path_ccw;
            break;
        }

        m_iteration++;
    }

    if( m_iteration == m_iterationLimit )
    {
        int len_cw  = path_cw.CLine().Length();
        int len_ccw = path_ccw.CLine().Length();

        if( m_forceLongerPath )
            aWalkPath = ( len_cw > len_ccw ? path_cw : path_ccw );
        else
            aWalkPath = ( len_cw < len_ccw ? path_cw : path_ccw );
    }

    if( m_cursorApproachMode )
    {
        // int len_cw = path_cw.GetCLine().Length();
        // int len_ccw = path_ccw.GetCLine().Length();
        bool found = false;

        SHAPE_LINE_CHAIN l = aWalkPath.CLine();

        for( int i = 0; i < l.SegmentCount(); i++ )
        {
            const SEG s = l.Segment( i );

            VECTOR2I nearest = s.NearestPoint( m_cursorPos );
            VECTOR2I::extended_type dist_a = ( s.A - m_cursorPos ).SquaredEuclideanNorm();
            VECTOR2I::extended_type dist_b = ( s.B - m_cursorPos ).SquaredEuclideanNorm();
            VECTOR2I::extended_type dist_n = ( nearest - m_cursorPos ).SquaredEuclideanNorm();

            if( dist_n <= dist_a && dist_n < dist_b )
            {
                l.Remove( i + 1, -1 );
                l.Append( nearest );
                l.Simplify();
                found = true;
                break;
            }
        }

        if( found )
        {
            aWalkPath = aInitialPath;
            aWalkPath.SetShape( l );
        }
    }

    aWalkPath.Line().Simplify();

    if( aWalkPath.SegmentCount() < 1 )
        return STUCK;
    if( aWalkPath.CPoint( -1 ) != aInitialPath.CPoint( -1 ) )
        return STUCK;
    if( aWalkPath.CPoint( 0 ) != aInitialPath.CPoint( 0 ) )
        return STUCK;

    WALKAROUND_STATUS st = s_ccw == DONE || s_cw == DONE ? DONE : STUCK;

    if( st == DONE )
    {
        if( aOptimize )
            OPTIMIZER::Optimize( &aWalkPath, OPTIMIZER::MERGE_OBTUSE, m_world );
    }

    return st;
}
Ejemplo n.º 13
0
bool PNS_DIFF_PAIR_PLACER::FixRoute( const VECTOR2I& aP, PNS_ITEM* aEndItem )
{
    if( !m_fitOk )
        return false;

    if( m_currentTrace.CP().SegmentCount() < 1 ||
            m_currentTrace.CN().SegmentCount() < 1 )
        return false;

    if( m_currentTrace.CP().SegmentCount() > 1 )
        m_initialDiagonal = !DIRECTION_45( m_currentTrace.CP().CSegment( -2 ) ).IsDiagonal();

    PNS_TOPOLOGY topo( m_lastNode );

    if( !m_snapOnTarget && !m_currentTrace.EndsWithVias() )
    {
        SHAPE_LINE_CHAIN newP ( m_currentTrace.CP() );
        SHAPE_LINE_CHAIN newN ( m_currentTrace.CN() );

        if( newP.SegmentCount() > 1 && newN.SegmentCount() > 1 )
        {
            newP.Remove( -1, -1 );
            newN.Remove( -1, -1 );
        }

        m_currentTrace.SetShape( newP, newN );
    }

    if( m_currentTrace.EndsWithVias() )
    {
        m_lastNode->Add( m_currentTrace.PLine().Via().Clone() );
        m_lastNode->Add( m_currentTrace.NLine().Via().Clone() );
        m_chainedPlacement = false;
    } else
        m_chainedPlacement = !m_snapOnTarget;

    PNS_LINE lineP( m_currentTrace.PLine() );
    PNS_LINE lineN( m_currentTrace.NLine() );

    m_lastNode->Add( &lineP );
    m_lastNode->Add( &lineN );

    topo.SimplifyLine( &lineP );
    topo.SimplifyLine( &lineN );

    m_prevPair = m_currentTrace.EndingPrimitives();

    Router()->CommitRouting( m_lastNode );

    m_lastNode = NULL;
    m_placingVia = false;

    if( m_snapOnTarget )
    {
        m_idle = true;
        return true;
    }
    else
    {
        initPlacement();
        return false;
    }
}