if (isMain == mainlineB) {
                    g2.draw(new Line2D.Double(pML, pBL));
                    g2.draw(new Line2D.Double(pF, pBR));
                    if (getContinuingSense() == state) {  // unknown or diverting path
//                         g2.draw(new Line2D.Double(pSR, pFPR));