How to programmatically delete annotations on a graph?

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Hello

I would like to label some vertices of the graph of waveform on detection of the input signal Ridge finish.  Now, I've annotated by program chart (see fig. 1). However, annotations stay there all the time (see fig. 2). Annotations are supposed to disappear whenever the vi is executed and only appear when the task of Ridge detection is over that is triggered by a push button.

So can I know how to clear annotations on a chart programmatically?  Thank you in advance.

Try this:

Tags: NI Software

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