(PECL imagick 2, PECL imagick 3)
$start_x
,$start_y
,$end_x
,$end_y
,$start_angle
,$end_angle
$composite
,$x
,$y
,$width
,$height
,$image
$origin_x
,$origin_y
,$radius_x
,$radius_y
,$angle_start
,$angle_end
$rx
,$ry
,$x_axis_rotation
,$large_arc
,$sweep
,$x
,$y
$rx
,$ry
,$x_axis_rotation
,$large_arc
,$sweep
,$x
,$y
$top_left_x
,$top_left_y
,$bottom_right_x
,$bottom_right_y