Can XY Graph add a single point to a plot without redrawing previous points?

[developer001]

I guess if I clear the graphs once in a while that would fix the memory problem. 

But what is the maximum amount of data I can save with running into issues?

because in my particular application I will have real time data coming in, and I will need to display them constantly.

[developer001]

Thanks for the tip! 

Im not sure...how do I check that?

[developer001]

I have checked the box to "clear data on each call"

[developer001]

Thanks! I think the problem is solved, it runs forever now

Just one more thing, my input array size  is 128x40 (so 40 timepoints).I want to plot this, and on the next iteration (another 128x40 array)  append this new data to the exisitng one, so it is continuos (so the x scale would go from 0-80 now, instead of 0-40)

How can I do this?

[developer001]

SinceI can't change the update mode on a graph, I used a chart instead,  so now the x scale is continuous.

But would it affect anything else?

[altenbach]

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developer001 wrote:

Just one more thing, my input array size  is 128x40 (so 40 timepoints).I want to plot this, and on the next iteration (another 128x40 array)  append this new data to the exisitng one, so it is continuos (so the x scale would go from 0-80 now, instead of 0-40)

How can I do this?

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Since the points are spaced equally in time, you should use a simple charts instead of xy graphs.

If you want to stay with the xy graph (why???), you need to keep track of X. Instead of tapping into the iteration terminal, you need to keep the current x in shift registers across all your loops and increment whenever new data arraives.