XY Graph Time As X axis Controlled By Property Node

[Kim_Shrewsbury]

I am building a vi in which I will be plotting data against the time.  I am using an xy graph along with the xy  chart buffer vi.  The x axis is the current time.  However, the axis will continue to compress as the buffer gets full and the data becomes unreadable.  I want to control the minimum and mzximum time on the x axis so that it constantly updates.  I have successfully done this when I use a difference in the current time and the start time using the property nodes under xscale-range-xminimum and xscale-range-xmaximum, however these property nodes only take a double as an input.

Any ideas?

[garrettmarsh]

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@Kim_Shrewsbury wrote:

I am building a vi in which I will be plotting data against the time.  I am using an xy graph along with the xy  chart buffer vi.  The x axis is the current time.  However, the axis will continue to compress as the buffer gets full and the data becomes unreadable.  I want to control the minimum and mzximum time on the x axis so that it constantly updates.  I have successfully done this when I use a difference in the current time and the start time using the property nodes under xscale-range-xminimum and xscale-range-xmaximum, however these property nodes only take a double as an input.

Any ideas?

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Sounds like you know how the scale needs to be manipulated. Are data types the problem? If so, you can convert timestamps to DBL:

[Kim_Shrewsbury]

When I feed a double into the property node the plot scale does not behae properly. It seems like this might be because I am wanting time on the x axis scale and I am feeding in a double.

[garrettmarsh]

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@Kim_Shrewsbury wrote:

When I feed a double into the property node the plot scale does not behae properly. It seems like this might be because I am wanting time on the x axis scale and I am feeding in a double.

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What exactly is the scale doing, and what do you expect it to do?