if (isMain == mainlineB) {
                    g2.draw(new Line2D.Double(pABL, pBL));
                    g2.draw(new Line2D.Double(pKLtC, pVLtA));
                    g2.draw(new Line2D.Double(pBFL, pABR));
                    g2.draw(new Line2D.Double(pBFL, pKL));