Supports modifying the X and Y scale values, does the view automatically update?

[changhexuefei]

Hello, I want to be able to modify the coordinate scale value when clicking on the X and Y coordinate axes, and the curve chart will automatically change with the modification of the coordinate scale. Is this requirement currently supported?

[IKupriyanov-HORIS]

Hi! That sounds like zooming/panning. Or do you mean something more complex - like getting areas/coordinates that the user selects/clicks?

[changhexuefei]

Hello, I want to achieve this effect, as shown in the video。

20250116_090738.mp4

[IKupriyanov-HORIS]

Unfortunatley, such functionality is not available out of the box. But you can achieve similar behavior by defining two variables - ymax, ymin and UI elements that will modify these variables. Then the ylim parameter in the coordCartesian can be used to adjust the "viewport" of the plot.

Check out this demo - I think it's pretty close to your goal (note that ylim() won't fit your needs, as it's a scale limit that drops data out of bounds, you need a coordinate system limit).