What is rotary scanning photography?

You can set the operation interface of the scanner.

When setting rotation, it is rotation, and when setting translation, it is translation.

Translation is to move the figure in parallel. According to a certain direction and distance, the translated figure is parallel and equal to the connecting line segment of the corresponding point of the original figure, and the shape and size of the figure remain unchanged. Rotation is to rotate the figure around a certain point by a certain angle. The shape and size of the rotated figure are the same as the original figure, and the included angle between the corresponding point and the connecting line of the rotation center is equal.