WaveformGraph with time plot

[sthompson]

How do I set the WaveformGraph control x-axis to indicate time (system time?) instead of number of samples?

I'm using Measurement Studio and C#.

Thanks

[Steak McDAX]

Hi sthompson,

Somewhere in your program, you are setting the range of your waveform graph.  It probably looks something like this:

this.xAxis.Range = new NationalInstruments.UI.Range(0, 20);

Instead of passing two numerics, we need to pass two DateTime objects:

this

.xAxis.Range = new NationalInstruments.UI.Range(DateTime.Now, TimeSpan.FromSeconds(10));

Also, you must change the default start and increment so it reflects this new range.  You need to make sure your increment value matches your timer tick interval as well (if you are using a timer):

this.waveformPlot.DefaultStart = (double)DataConverter.Convert(DateTime.Now, typeof(double));
this.waveformPlot.DefaultIncrement = (double)DataConverter.Convert(TimeSpan.FromMilliseconds(100), typeof(double));

I hope this helps.  Let us know if you have any questions!

[sthompson]

Thanks you for the help. Having read quite a  few of the questions posted to this forum, it seems there are quite a few

lost souls out there seeking information. I only wish there were some good textbooks on Measurement Studio available.

Regards,

Sthompson.