Problems with the button "INSERT."

Hello

I have a problem in my homework. I need to do the following:

"original numbers" table contains zeros. Let LabVIEW fill a table 'original numbers' by random integers from 10 to 90 at a rate 1 number/0.5 seconds by replacing each zero both from top down. (FACT)

the user fills out 10numbers in a 'numbers inserted without doubt' table. The user then decides if it needs to change a generated number that he dislikes changing table "insert."

Then he presses the button INSERT and a resulting table appears containing the items that the user has changed...

This video could clarify:

http://www.YouTube.com/watch?v=dDXo2ABqNM4

The problem I face is the button INSERT. In the video, at the moment he is passed the program will continue until the last part.

I enclose the vi. I think that there is no logical errors in the program except the INSERT box structure.

Thank you.
PS version is LabView2010; I get error when trying to save in the desolate previous versions.

A.A.A. wrote:

  1. What does it mean to turn off automatic indexing?
  2. I did not understand why we used the palette table to remodel. What are the dimensions of the entry and exit? Very nice way how you did a length of 10 zero array. (I'll use when I guess that the solution to the problem of dimension.)
  3. Have you used the expectation of 100 ms to do not affect the performance of the computer or for another reason?
  4. How where you can link the table Palette not equal 'changed' numbers?
  5. Where did you get the button "replace"? I think that my button "insert" is the oppositeof he needs to do.

Your code still has major flaws. Your questions are very basic, and I recommend doing a few tutorials.

  1. If wire you an array through a loop limit, the tunnel can have two modes (plain (solid square) or autoindexing (contains a small set of brackets)). In your case, you are autoidenxing the table 1 d, creating a 2D (two lines) table at the end of the first loop. You generate 10 x too much data! (create a KPI 10 x 10 on the 2D table to see what you actually do!). You can right click on a tunnel to switch between the modes of indexation. A simple tunnel carries the unchanged data in the table. A tunnel exit autoindexing, creates an array to a higher dimension, in your case a table 2D of a table 1 d with a new line by iteration. If you autoiindex one scalar value, you get an array of 1 d with a single element by iteration. A tunnel entrance of autoidexing does the opposite. If wire you a table 1 d to a loop FOR using autoindexing, you get a scalar by iteration and the loop FOR stops once the table runs out of elements. Is equavalent (with some differences) for wiring without autoidenxing, then using "index Board" with the index wired to [i] as you currently do. In your case, you should get the table 1 d since the shift of the first loop register, it has all the information (!) and autoidexing on the edge of the second loop off, and the result would be the same, except that you use only 10% of the memory.
  2. Once you are autoidexing to a loop limit, a number of loop iterations FOR will be determined by the size of the smallest table autoindexing. It would be a problem if you later want to modify the code to work on for example of 20 elements, because the other two tables in my code would force the loop to stop after 10 iterations. 'Resize the table' can be used for upholstery/trimming tables and in this case we are accommodating to the length on the main Board to ensure that the loop FOR does not stop prematurely. In your case, the berries to replace and switch are empty by default, if the loop would not turn at all unless you enter values. "resize the table" brings them up to the waist.
  3. Yes, you need a small wait inside the other case, or elsewhere in the while loop. Without delay, the essentially empty loop will turn millions of times per second, consuming all CPU in the process while doing nothing. No human can click a button with this kind of temporal resolution, so a wait 100 ms is not noticeable, but will fall CPU utilization to a negligible level. Your computer has dozens of processes running at any given time. Imagine how it would work if all programs would consume all CPU, they can possibly get?
  4. I compare two tables, and the result will be an array of Boolean. You are comparing only two scalars and you won't get a table. Also, you do not have the 'AND', because if the values are different, it must be true anyway. In your case, you will need to wear a similar table of Boolean in the table number, replacement of the elements as you go.
  5. A button is a button a button. There should be no difference. You can change the label text Boolean, default value, and mechanical action to match your needs.

A.A.A. wrote:


I had to initialize the tables full of zeroes but the way you did much simpler.  How to initialize them to zero? (where did you get the pallets? I've attached a picture clarifing my question.

Here are the local variables. You don't need to find them in the palettes. Simply right click on a terminal and 'create the local variable '. Voila!

(Local variables can serve as an indicator of reading or writing to a control. However, because they break the flow of data, you can generate dangerous racing conditions. They also force copies of additional data in the memory. Do not use them as "variables" in the text according to the code. Except for the interface initialization interactions and the user, they should be used sparingly and are rarely needed. In principle, my code has a theoretical condition because the order of operations is not determined between three sections of the code are independent. For example if the initializion would happen after the execution of the second loop, you will get an unexpected result. This will never happen in this particular case, but in other scenarios, it could be a problem.)

Tags: NI Software

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