LabVIEW
Array Problems
I have a problem with the arrays.
The entire program will be with the Vision package programmed, but for my part problem, it does not matter.
So I want an image as an array processing, which works well, now I will have a Determines size (1x4), the mean values of all pixels read that works well.
My problem now is that the funds received values in an array save. I can be the processing, but the old values are overwritten, and so does the array always with the same numbers full.
I know that the not so well programmed, but it is only the first to test whether it ever will.
Improvement suggestions are always welcome.
The entire program will be with the Vision package programmed, but for my part problem, it does not matter.
So I want an image as an array processing, which works well, now I will have a Determines size (1x4), the mean values of all pixels read that works well.
My problem now is that the funds received values in an array save. I can be the processing, but the old values are overwritten, and so does the array always with the same numbers full.
I know that the not so well programmed, but it is only the first to test whether it ever will.
Improvement suggestions are always welcome.
I don't fully get what you want, but the following code should come near:
Ton
Message Edited by TonP on 11-19-2007 10:40 AM
Ton
Message Edited by TonP on 11-19-2007 10:40 AM
LabVIEW user groep
Thank you for the fast answer.
I post more of the vi, that you can look better what i mean.
I want convert an image to an array. But with my old version the array fill judt with the same mean value.
And the question is now, what is the bug in my vi.
I donĀ“t understand the example from the first answer, because i donĀ“t know how to wire the "Initialize Array" vi
I hope so its better to understand what my problem is.
I post more of the vi, that you can look better what i mean.
I want convert an image to an array. But with my old version the array fill judt with the same mean value.
And the question is now, what is the bug in my vi.
I donĀ“t understand the example from the first answer, because i donĀ“t know how to wire the "Initialize Array" vi
I hope so its better to understand what my problem is.
Hi Phartas,
where's the problem in using the "Initialize array"? You already used it in your example and there is explanation in context help on wiring!
Problems of your vi: You don't use dataflow!
You create some arrays in the inner for loop BUT you create them in every iteration. This way you "forget" results of iterations before! That's the reason for using a shift register (as in TonP's example). Instead of creating new arrays in each iteration you simple store a value in a pre-initialized array (by using "Replace Array element").
where's the problem in using the "Initialize array"? You already used it in your example and there is explanation in context help on wiring!
Problems of your vi: You don't use dataflow!
You create some arrays in the inner for loop BUT you create them in every iteration. This way you "forget" results of iterations before! That's the reason for using a shift register (as in TonP's example). Instead of creating new arrays in each iteration you simple store a value in a pre-initialized array (by using "Replace Array element").
So here is my new vi.
It works, but not so fast.
the inner loop count just every second step and its to slow.
I have no delay in it but it need nearly 10 seconds to get the new value and these the wrong one.
And before i forget it, thank you for your answers!
It works, but not so fast.
the inner loop count just every second step and its to slow.
I have no delay in it but it need nearly 10 seconds to get the new value and these the wrong one.
And before i forget it, thank you for your answers!
Hi Phartas,
what about attaching the vi (instead of a broken image link)?
Message Edited by GerdW on 11-19-2007 01:04 PM
what about attaching the vi (instead of a broken image link)?
Message Edited by GerdW on 11-19-2007 01:04 PM
Hi Phartas,
dummerweise fehlt mir da die Berechtigung...
Kannst du die Bilder (vorzugsweise PNG/JPG) nicht einfach hier anhƤngen? (Siehe unten: "attachment")
dummerweise fehlt mir da die Berechtigung...
Kannst du die Bilder (vorzugsweise PNG/JPG) nicht einfach hier anhƤngen? (Siehe unten: "attachment")
Hi Phartas:
under the editing window you will find the "attachment" area to add files:
Message Edited by GerdW on 11-19-2007 01:39 PM
under the editing window you will find the "attachment" area to add files:
Message Edited by GerdW on 11-19-2007 01:39 PM
