Displaying a custom graph

I'm having a problem graphing signals that I am reading from my PCI-6013 device. Basically, what I want to do is graph one of three signals being read by the device. The signal graphed should be the largest of the three values. If Signal value A is larger than value B and C, then I want A to appear on a graph. If B were to change and become the largest, then I want B to be graphed. Any suggestions?

Matt-
Visually representing which of the three signals is responsible for each data point is most easily accomplished by plotting the power waveform in regular format and overlaying the three raw signals on the graph as discrete-point plots.
If you plot the power waveform as a white line, you can plot the other three signals as overlayed bright-colored points. I made an example VI for you and attached it.
Once you've added the three extra raw signals to your output plot, you can modify the graph properties for each of the points. To do so, simply go to the front panel, [right-click] on the graph, select the "Plot" tab, and change the representation of the three raw signal plots to discrete points of contrasting
colors. You can reference my example VI to see how I adjusted the propertied. Note: I changed the color of the power plot to 'white' for the sake of nice contrast.
Your result will be a plot with all four waveforms, and it will be easy to see which raw signal is responsible for each maximum power point on the resultant waveform, since the colored data point will overlap the final (solid-line represented) signal.
I hope this helps. Please don't hesitate to ask for more help/clarification if necessary.
Good luck,
Joe Des Rosier
National Instruments
Attachments:
Cal_Graph_DiffColors.vi ‏244 KB

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Displaying a custom graph

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