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Y-axis units and labels when plotting from ADE

mikewu999

I have a Skill function which takes the sum of the squares of a number of transient voltage waveforms. I can create a plot using this skill function via awvPlotExpression, I can create a name for the trace by using "?expr", I can use "?yaxisUnit" and "yaxisLabel" (even though these arguments are not documented in the VIVA skill manual under awvPlotExpression) to get the Y-axis to read as I want it - "P(uW)".

The problem comes when I send that trace to ADE from the plot window so that I can automatically plot that function for future runs. The trace name gets preserved (in the "Name" column in ADE) but i lose the unit and label information so that when I plot from ADE the Y-axis reads "-real(u" instead of "P(uW)".

Is there any way to preserve the unit and label settings when I plot directly from ADE?

  • OK, I figured out a fix. Units and axis label are properties of the vectors that make up the waveform, not of the waveform. To set the Y-axis units and Y-axis labels of a waveform to P and W:

    waveformXVec = drGetWaveformXVec( waveform )
    waveformYVec = drGetWaveformYVec( waveform )
    waveformYVec~>name = "P"
    waveformYVec~>units = "W"
    waveform = drCreateWaveform( waveformXVec waveformYVec )

    When I do this I no longer need to use "?yaxisUnit" and "?yaxisLabel" in my awvPlotExpression call.

    The "name" and "units" properties for a vector are not well documented, I stumbled across them searching through old forum posts. The usual method to find possible properties of "drCreateVec('double 0)~>?" does not work, it returns nil.

    Is there a way to set those vector properties without dissecting and reassembling the waveform?

  • in reply to mikewu999

    There's some convenience functions in this article I wrote many years ago, but essentially these are just using the same approach.

    How can I set the plot style or units on a trace automatically?

    Andrew

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