Loop structures

[altenbach]

Chaos,

Your pictured solution is incomplete because you need two instances of the termination boolean determination, another one inside the loop. Currently, the comparison operation is done exactly once and never again, thus the loop will stop no matter what (it is inside the TRUE case!) and can be deleted entirely. Think dataflow!

The termination condition must be checked at the beginning AND at each loop iteration.

My solution places the termination condition inside the loop and thus only one instance is required. I think it is a cleaner solution.

Message Edited by altenbach on 05-19-2005 11:31 AM

[Chaos]

Good point, it was just something I threw it together in 20 seconds and didnt think it through. Hmm, I get the nagging feeling (I dont know why) that this should be easier and I am missing an obvious solution...

[m3nth]

There isn't a while-do structure (yet) but something you can do to automate your task of creating them (until NI makes them native) is to make a template design of your loop and case structures. Adding the template to your function palette will let you merge the code into your VI and you won't have to setup everything just the way you want it every time, only once.

[becktho]

These are good questions for which I don't have an answer at the moment.

But as already mentioned I'd prefer such a loop (one may think I'm a lazy guy - it may be right ;)).
I filled a feedback from as suggested by Philip.
Maybe it's a good input which will be available in future versions - otherwise I'll come back to your solution altenbach :)).

Thomas

[Philip_Courtois]

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@altenbach wrote:

(If the need really exists, I am sure that the wizards at NI will come up with a stunningly beautiful and intuitive new loop structure that does exactly what you want. :))

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We are flattered!

...but remember that we build our new products guided by feedback from you guys; our valued customers.

Kudo's to becktho for submitting the suggestion!

Message Edited by Philip C. on 05-20-2005 07:07 PM

[shoneill]

Becktho is right, this would be useful,

Using LV for a while, I complete forgot about this possibility, and just coded around it.

Well spotted,

Shane.