2 plots on chart at different times. HELP!!!

Okay, here is my problem. I need to display on fixed plot, for example a sine wave. Once the plot is on the chart i need trace the sinewave in real time using a second plot in a differnt color. As of now i can plot the first waveform, then when i plot the second it starts off where the 1rst one stopped. Is there any way i can start the 2nd plot in the same position as the first???????

Use a waveform graph with two traces. Trace 1 contains the first plot. The second trace is initially an array initialized to all NaN. Replace the array elements with the second plot in a loop as you go. See attached example (LabVIEW 7.0).
LabVIEW Champion . Do more with less code and in less time .
Attachments:
GraphUpdate.vi ‏29 KB

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