plot data acquired in a loop in real time

[cmuchi]

Hello,

I am acquiring data, and doing some basic processing inside a loop. I would like to plot this data in a real-time way every time the loop executes i.e. data on y, loop iteration on x, and have the plot show data from previous loop iterations too  (not just the current one). I'm trying this using shift registers and arrays to clusters, but what shows up on my plot is a single point that updates every loop iteration. I can get what I want, superficially, by just putting the data on a waveform graph, but that updates with time and not loop count. I have also tried plotting the data array directly, but I haven't had success with that either.

I've attached my vi, and the relevant part to this question is at the bottom of the case structure.

Thank you!

[ogk.nz]

I must admit I'm not entirely sure what exactly you are after, but it seems you are pretty close. Rather then increment a shift register just use the iteration counter from the loop. I think the following snippet should clarify things.

But for future reference, it makes life easier to diagnose if you can strip down your VI to the area that is experiencing issues and provide example data.

[crossrulz]

Just use a Chart instead of a graph.  Charts has a history built in.