Using ChartView for real time plotting

[cristeab]

Hi
I am using Qt 5.15 with ChartView to display a graph whose x axis is constantly shifting to the left. The x axis contains date time values shown in the format "hh:mm". The graph is updated several times per minute. I am updating with the graph the limits of the x axis. My expectation is to see the x axis shifting each time new values are added, but in reality I am seeing the graph shifting to the left and after a minute the x axis is also updated. So the result is not satisfactory for showing data in real time.

Is there a way to make ChartView update continuously the x axis or ChartView is not suitable for this type of applications ?

thanks
Bogdan

[MrShawn]

Are you updating the axis as well when you update the data?

I've done some real time plotting and while I don't find QtCharts to be that intuitive, once I figured it out it was really very nice.