Serial Plotter with zoom and auto-scale button

[GClairet]

Describe the request

Adding some setting to Serial Plotter:

• A button to to disable the auto-scale
• A zoom to have more points in the x-axis

Describe the current behavior

The auto-scale do not allow me to have a good and rapid reading of the graph evolution. The too low number of points in x-axis does not allow me to have a view of the high speed datas for a long enough time.

Arduino IDE version

2.0.0-rc5

Operating system

Windows

Operating system version

10 Pro x64 (20H2)

Additional context

Adding the requested zoom capability would likely also resolve arduino/arduino-ide#803 ("Or make it a user selectable option").

Additional requests

• Serial Plotter with zoom and auto-scale button #25 (comment)
• Serial Plotter with zoom and auto-scale button #25 (comment)
• Serial Plotter with zoom and auto-scale button #25 (comment)

Issue checklist

• I searched for previous requests in the issue tracker
• I verified the feature was still missing when using the latest nightly build
• My request contains all necessary details

[fralbo]

I think auto-scale is maybe not really expectable, mainly for real time plotting, but it would be very nice to be able to define the horizontal scale.

[nativeit]

+1 The serial plotter's autoscale makes plotting realtime changes in a value so much harder, because there's no visual difference between the y-axis changing scale, and my datapoint moving higher. I can understand how this feature might be desired with a repeating signal, the kind of thing that'd be easy to trigger on an oscilloscope, as you can largely ignore it. But for visualizing linear changes it's effectively useless.

Thanks for the ongoing effort to support this wonderful platform!