Figure: Translation setting interface

Rotate at any angle: Click the icon to rotate at any angle to enter the state of rotation at any angle, and then

select the base point according to the interactive window prompt in the lower left corner, enter the angle, and

press Enter to rotate the graph. If you do not select the base point and directly enter the angle, the rotation

operation will be performed with the center of the graph as the base point.

Interactive zoom: The operation is the same as the operation of rotating at any angle, except that the input

is the magnification of the graphics zoom.

Mirror at any angle: click the icon of mirror at any angle to enter the state of mirroring at any angle.

According to the interactive window prompt, the mouse rotates the two end points of the mirrored mirror

surface to finish the mirroring at any angle.

Figure: Geometric transformation page

Size change: in addition to quickly selecting the zoom times in the pop-up menu, you can also click the size

icon to pop up the size setting interface. You can select a common size or enter a new size. The zoom center is

the benchmark when the image is zoomed and changed.

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