x, ystart_radius, end_radiusstart_angle, end_angledirection
['clock', 'anticlock'] (default: 'anticlock')x, yradiusstart_angle, end_angledirection
['clock', 'anticlock'] (default: 'anticlock')x, yradiusstart_angle, end_angledirection
['clock', 'anticlock'] (default: 'anticlock')