}
    if( p.hasOwnProperty('mo') ){
      var x0 = p.x + node.w/2;
      var x1 = p.mo*railPitch + node.w/2;
      var u = tx.rowinfo[p.mu-tx.iTopRow];
      var y1 = miLineY(u);
      if( p.u<0 || p.mo!=p.r ){
        if( p.u==0 && p.mo==p.r ){
          mergeLines[p.mo] = u.r<p.r ? -mergeOffset-mLine.w : mergeOffset;
        }else{
          mergeLines[p.mo] = -mLine.w/2;
        }
        x1 += mergeLines[p.mo]
        var y0 = p.y+2;
        if( p.mu==p.id ){
          drawCherrypickLine(x0,y0,x1+(x0<x1 ? mLine.w : 0),null);
          y1 = y0;
        }else{
          drawMergeLine(x0,y0,x1+(x0<x1 ? mLine.w : 0),null);
          drawMergeLine(x1,y0+mLine.w,null,y1);
        }
        if( p.hasOwnProperty('cu') ){
          var u2 = tx.rowinfo[p.cu-tx.iTopRow];
          var y2 = miLineY(u2);
          drawCherrypickLine(x1,y1,null,y2);
        }
      }else if( mergeOffset ){
        mergeLines[p.mo] = u.r<p.r ? -mergeOffset-mLine.w : mergeOffset;
        x1 += mergeLines[p.mo];
        if( p.mo<p.id ){
          drawMergeLine(x1,p.y+node.h/2,null,y1);
        }
        if( p.hasOwnProperty('cu') ){
          var u2 = tx.rowinfo[p.cu-tx.iTopRow];