(PECL imagick 2, PECL imagick 3)
$start_x,$start_y,$end_x,$end_y,$start_angle,$end_angle$origin_x,$origin_y,$perimeter_x,$perimeter_y$composite,$x,$y,$width,$height,$image$origin_x,$origin_y,$radius_x,$radius_y,$angle_start,$angle_end$x1,$y1,$x2,$y2,$x,$y$x1,$y1,$x_end,$y$x1,$y1,$x_end,$y$x1,$y1,$x2,$y2,$x,$y$rx,$ry,$x_axis_rotation,$large_arc,$sweep,$x,$y$rx,$ry,$x_axis_rotation,$large_arc,$sweep,$x,$y$pattern_id,$x,$y,$width,$height$top_left_x,$top_left_y,$bottom_right_x,$bottom_right_y