Plot data over a 24hour period

[clkwk]

Hello,

I am setting up a weather station and I would like to plot the meausred radiation over a 24hour period.  I want to have the plot start at 00:00 hours and end at 24:00 (i.e. plot the radiation over the day) and have the data plotted as it is measure against its time of day.  The data is not measured at a constant time interval.  I have tryed using a a strip chart, waveform chat and an x/y chart but have had no look getting anything to work.  This program will be running constantly and I do not want the x-axis of the plot to change.

Thanks

[clkwk]

I was able to plot the data in the fashion required, but I need to know how to clear an xy chat when its reached the maximum x-time.

[Will.D]

Just create a property node, and choose "value", then wire a constant to it with the value of 0. See the image

Message Edited by Novatron on 05-08-2006 02:53 PM

[Bob_Y.]

Are you using an XY Graph or a Waveform Chart?  You keep saying XY Chart, but that is not what LabVIEW calls them. 

I believe that you are using an XY Graph.  As such, you clear it by clearing the data array fed into it.

If you are using the Waveform Chart, you can clear it by creating a property node  with the property of History Data and clear it.  Another thing you could do would be to use the Scope update mode and it will clear the chart without clearing the data.

Hope that this helps,
Bob Young

[clkwk]

Thanks for your replies! I got everything to work and it is an xy graph!

Brent