Scaling the chart y-axis for small values

sb_st · ‎2025-12-07

Hi;

I am trying to dial in a PID controller, and my values are small (0-1 range). The Chart widget seems to want to always set its Y axis bounds to [-10, 10], which makes it hard for me to see what's going on in realtime. I have to make an adjustment, then pause the acquisition to scroll way in to see what happened.

Is there a way for me to manually specify the Y axis scale and have it stay persistent?

Richard.Chvr · ‎2025-12-10

Hello, min/max Y-axis could not be changed for line chart, it is however possible for bar chart.

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sb_st · ‎2025-12-10

Thank you!

That's kind of a bummer - seems like sort of an arbitrary constraint, and using a bar graph to try to dial PID coefficients and see how the system reacts isn't really very helpful.

Would it be possible to request this as a feature?