How to display waveforms as double precision versus seconds in a chart?

I need some help with the following:
I am acquiring several waveforms that I display in charts. I would like to have an option to view data only when I press a button; I would like the new data coming in to append dirrectly to the old data displayed. If I do this with a waveform I cannot append to the old waveform displayed because the points coming is have the time information that will create a gap between old wave and new wave. In simple words is like this: when I turn onn a button data is flowing in my charts until I turn off the button; when I turn on the button again after a time t, the data will flow again on the screen but I will have a gap betweeen the old waveand the new wave of data. The gap is equal with t on the X-axis which displays the time elapsed.
Question is how can I do such that when I turn the button again the data starts to flow at the point where I left it and not after time t?
The problem might be saved by getting y from the waveform and displaying it in a chart? How would I set the X-axis to show me "y" (data) versus seconds?
Anybody has some advice and/or example?
Thank you

Its hard to find the space to run wires all the way to the while loop boundary on these sorts of large block diagrams. It is a little easier to read when you use a feedback node. Do not forget to have an empty waveform with the correct dt plugged into the initializer terminal. I don't see anything on the block diagram that would preclude you from using this method.
There is an "Ignore waveform time stamp on x-axes" setting in the chart properties. I have never played with it, perhaps it will do what you wish...
Message Edited by jasonhill on 02-23-2006 03:38 PM
Attachments:
appendarrayfeedbacknode.PNG ‏3 KB

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http://www.ni.com/ask

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