ax21.plot([row['%s_LineStart' % nameEvent]+row['%s_LineDist' % nameEvent][0],
            row['%s_LineStart' % nameEvent]+row['%s_LineDist' % nameEvent][-1]],
            [row['%s_Line' % nameEvent].coords[0][2],row['%s_Line' % nameEvent].coords[-1][2]],
            '--', color='lightgray', linewidth=4, alpha=1., label='beta line [%.1f°]' % row['%s_Angle' % nameEvent])