转动滑竿及可操作！ Turn the rod and operate it! "R" 代表半径。 The "R" represents the radius. "Step" 代表图像的步长。 "Step" represents the step of the image.
如果你有什么建议及想法，可以在下面留言，谢谢！ If you have any suggestions and ideas, please leave a message below. Thank you!
