How to save a chart after each iteration in a for loop?

[Hoatzin]

Hello,

I have written code which initializes a spectrometer. Once initialized, if the "Capture" button is pushed, the spectrometer takes a new spectrum three times (see for loop) every second. This spectrum is displayed as a chart in my front panel. My code runs fine...it will update the spectrum every second.

However, I want to be able to save each of these three iterations as separate graphs. Basically, I want to click "Capture" and have my code save three charts to a specified folder. How do I go about doing this?

I've attached my VI.

Thanks.

[billko]

Do you want just a picture of the graph or do you want to save the actual data?

[Hoatzin]

Ideally, I'd like to save the actual data.

[billko · Accepted solution]

Probably the easist way is to take the data from the for loop and pass it out in an indexed tunnel.  Handle the resulting array of data as you'd like.  You could also do a producer/consumer and write the files as the data comes out.

[crossrulz]

Use Build Array to make a 2D Array of your X and Y data and use Write To Spreadsheet File to save the data.