waveform graph update mode

[krivan]

Is there a way to plot data continuously in waveform graph similar to a waveform chart? 

I do continuous data acquisition and I need to use cursors on the plotted results so I use a waveform graph. The problem is that the graph is refreshed all the time and shows only the new results. I tried to get the complete data stream plotted by putting the data acq block into a for loop, enabling the indexing and storing the acquired/indexed data blocks in an array [See attached picture]. It still keeps refreshing.

Any ideas and hints are welcome.

Thanks,

Krivan

[Gak]

Is this what you want?

[krivan]

I tried your code and it did work. I implemented your suggestion but in my application it keeps adding the new data as an additional curve. I cannot append the new data, even if the shift register feeds the data into the build array. I can't see at the moment what I did wrong...

[Gak · Accepted solution]

Have a look at this image

[krivan]

True. You're right. Thanks!