reading a 1d array of waveform from file?

[banj]

I've written a program that reads data from three channels does some processing of the data while simultaneously writing the three waveform to one file.

In another post I found how to read my waveform file back into labview but the program only works for reading the first waveform in record. How can I modify it so that i can read my three waveforms back into labview. I've attached a copy of the read waveform vi.

[Oleg]

Hi,
there is an output from "Read waveform from file.vi" named "All waveforms in record". This outpu is organized in array of waveforms. So this is actually what you need. If you need to extract some particular waveform (for example #2) then you can use "Index array" funcrion from Array palette.

BTW if you want to add new waveforms to existing file you must change the "append to file" constant of "Write waveforms to file.vi" to TRUE.

Example is attached.

Good luck.

Oleg Chutko.

[banj]

I tried running this new version of the program but it doesn't read the entire waveform. In order to read the entire file, I have to change the read offset sequentially. How can I read it all at once.

In regards to your second point, I do have the append to file constant set to true.

thanks,
Banj

[Fantester]

Check out the post "Reading entire waveform from file?" I think it will help.
The attached vi is from that post.