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Unread 10-07-2010, 11:12
Greg McKaskle Greg McKaskle is offline
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Re: Future LabVIEW Features

Quote:
Originally Posted by Chris Hibner View Post
...

Here is what I'd like to see:

1) Real-time filter/transfer function VI's...

2) Output / data storage VIs that store data as it comes in...

I know I have thought of other things, but that is all I can think of for now. I guess what I really want is for ALL of the vectored blocks to have a "real-time", sample-by-sample counterparts.
I'm wearing the other shoe. I know LV and only know Simulink from looking over other people's shoulders.

For #1, you are looking for the PtByPt functions. LV doesn't call them realtime since vectors are also useful for realtime, especially when dealing with 2D data. Anyway, in the Signal Processing palette, the lower right corner has functions specifically for incremental signal processing point-by-point.

For #2, the file I/O functions support appending data to the end of the file, but they are rather generic and support all sorts of random access as well, so as far as I know there is no easy AppendOnly function in the palette. If the file is left open, the file write will automatically append. I'd be glad to show a simpler way to use the file I/O if you want to show what you wrote previously. Or if you have specific questions...

On the FRC simulation topic, are you most interested in visualization, modeling, control development, state machines, or something else?

Greg McKaskle
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