How I can get my waveform chart to reset every time the user pushes a button?

[Laura121]

My program takes in a DAQ input and displays this signal in a waveform chart continuously. I would like the previous values to be removed from the waveform chart display every time the user presses a button (a boolean toggle). Any ideas on how I can do this? I am relatively new to Labview and do not know where to begin in solving this problem.

[thoult]

Have a look at this page.

[jcarmody · Accepted solution]

There's a property node for that.  Put something like this in your UI loop, if you have one.

[moderator1983]

You can use History property node and wire an empty array to clear the data of chart.

[Tronman]

That worked, thanks, right click on block diagram icon of the chart, create/property node/ (bottom of drop down is the history data).