for (let i = 0; i < acidbaselimitborders.length; i++) {
                        canvas.beginPath();
                        canvas.moveTo(g.toDomXCoord(acidbaselimitborders[i][0][0]), g.toDomYCoord(acidbaselimitborders[i][0][1]));
                        for (let j = 1; j < acidbaselimitborders[i].length; j++) {
                            canvas.lineTo(g.toDomXCoord(acidbaselimitborders[i][j][0]), g.toDomYCoord(acidbaselimitborders[i][j][1]));