Samples to seconds on x axis

[Khanjan246]

 Hey all,

I have a very common problem. I want to display my X axis of my chart in terms of seconds. I have tried all ways of trying to format it using absolute time or using the property node of the chart and setting the Xscale format by wiring  it to Get Current /Time Date in seconds (through a 'to double' data converter) . Now this works as long as my loop runs on a delay of 1 second. However, my data acquisition needs to plot all samples that I take. So now how can I make my X axis in terms of seconds without the putting delay in the loop... (chart is required)...

[MikeS81]

Hi Khanjan246
why don´t you use a graph?

Mike

[Ben]

If you present your data to the chart as a waveform data type where the "to" of the WF is correct

AND

you make sure the "Ignore attributes" is NOT set for the chart

Then you should be able to plot you data either using absolute time or as relative.

Ben

[Khanjan246]

I need to plot my data continuously as and when it is acquired and so cant use a graph because as far as I know graph cannot be used to plot the data continuously during run time. If I am wrong please enlighten me. I wish to plot two data variables continuously during run time which are acquired very fast and hence plotted as samples. I want to change the scale to seconds of my chart which acquires the samples continuously.

[CyGa]

If you know the time elapsed between each sample (dt), you can use the property node Xscale.Multiplier to convert samples into seconds wiring "dt" to it.

[Khanjan246]

    Thanks ... The problem got solved... I wired dt into Xscale.Multiplier... And now I have seconds on the X axis....

    Thanks