Eugen Graf

Why to use static dipatch member VI? It has only disadvantages to the dynamic dispatch member VI. Do it have less overhead for LV?

QUOTE (jdunham @ Jun 13 2008, 11:50 PM) I am exatly on this pint now: http://forums.lavag.org/Can-t-find-Type-De...ion-t11161.html

QUOTE (Justin Goeres @ Jun 13 2008, 10:36 PM) Yes, you understand it very good. It would solve almost all my problems but I want to use this Queue-Ref-Constant in SubVIs. So I want to define this as Control (Input) in my SubVIs.

QUOTE (Aristos Queue @ Jun 13 2008, 10:05 PM) Ok, I understand you good. So binary string parsing is slower, but don't understand why. No problem. Can you tell something about my use case? If you define a queue of type Cluster with Action-Enum-Typedef and Variant-Data inside them. Than I change my Typedef, but the queue Type will not be automaticaly updated to this "new" type. What can I do to update queue type automaticaly? Is it possible? Thank you

QUOTE (normandinf @ Jun 13 2008, 09:43 PM) Thank you for reply, but I want the Output should automatically update if I update my typedef. QUOTE (normandinf @ Jun 13 2008, 09:43 PM) EDIT: You also have errors in "Core_Start.vi", but that I'm sure you can fix. Of course, I am in programming phase. This VI is not ready to go now. EDIT: Ok, I did it on my way. I redefined my queue to binary string type. Not only due to this problem, much more I want to stay compatible to other programming languages.

So, I got my first error (comic behaviour) using ENUM_Typedef+Variant Cluster instead of Binary String. If I define my Queue of this type I have everytime to update my Queue Reference Constant if I add or remove some Items in my ENUM_Typedef. Of cource I can define my queue as a variant and add there Enum_Typedef and an substituded variant. But I saw that LV-Programmers use commonly a cluster (not a Variant!) with ENUM and Variant inside.

Hello LAVAs! I get following error and don't know how to. Please help! Thank you, Eugen

I know there is no one right answer. Ok, I will ask you on the other way. Which software design pattern you prefer for which kind of applications? Please look this list: http://en.wikipedia.org/wiki/Design_patter...uter_science%29 Than you all for answers, Eugen

FGV is really a good container for references! :thumbup: What do you do if your application should connect more computers e.g. over ethernet? I mean you can't use one FGV on more than on PCs. But I find FGV a very nice suggestion. QUOTE (JDave @ Jun 13 2008, 01:55 AM) Of course, I use it. But my question was how to administrate it. had some projects where I used about 5 queues, 1 notifier and 7 User Events. Ok, it's not really the biggest, but it can happen, that I get a project with much more loops,where I have to administrate all references and the programm architecture. And of course the reusability of the code, so modularity is very important for me. I want to use some loops, tasks packed in a VI for future projects too. So I want to make it more general.

QUOTE (Justin Goeres @ Jun 13 2008, 12:50 AM) Why? I use it too, it's good. At all because I can unflatten it partionally and have rest of binary string (> 8.0) to parse it. I can do it more dynamic, whereby variant is more static, because you have to place variant into variant. But you can append one binary string to other binary string.

QUOTE (Justin Goeres @ Jun 13 2008, 12:47 AM) But if your software should get data from 5 different sources each over RS232, TCP/IP, CAN and you should show some dialogs to user, than it can't be done with one loop, because your buffers will get full and you will lost some data if user don't klick OK or Cancel? And the next question: Producer-Consumer Design Pattern is not enough (for me). I want to communicate from every loop to every other loop. What can you suggest for this?

That is not for tutorial (why not?), it's for me. If my loops communicate using queues, notifiers or user events I can't choose which type of them I want to use. I use currently Binay String Type, but I saw that much people use a cluster with ENUM and VARIANT inside. The enum is the action and variant contains data. I use binary string which contains header and data. Both is good, has advantages and disadvantages, can you tell me what do you use in this case? Thank you

Hello, this Question in not easy, but: which programm architecture do you use in your projects if you use very much parallel loops, which communicates with syncronisation tools (Queues, Notifiers, User Events and so on)? Thank you, Eugen

QUOTE (Yen @ Jun 12 2008, 09:39 PM) Not really. But it's my impression. It shouldn't be so, but I think two brothers Iran and Iraq have different fortunes and this story says about it. Peoples are amerikans who meet one of brother and he converts from one figure to other if he jumps into the hole. In really the story may say some other, but I think my impression is no too false. It can be something like this.

Amerikanisatiton !!! I see it in this movie. Can be thistwo frends are Iran and Iraq ?

Binary strings (my choise) + are direct representation of data in memory takes less memory and so faster easier to parse partionally (rest of binary string output in unflatten) mostly used by other programming languages (DLLs & co.) almost always used by binary protocolls (devices) - are not readable by users (not really needed for program inside) bad for debugging Variant (and I think XML too) + are better to debug some properties can be set (like on waveform) readable by users (can be used to save programm settings) any more??? - are what??? Can you tell me in which cases I should better take variant? Thank you, Eugen

QUOTE (Antoine @ Jun 10 2008, 11:26 PM) Ok, but the graph will be zoomed. Almost each point is needed. Not the whole plot, but I can`t decide which parts are not needed, it`s unknown and variable.

Hello LAVAs, I have a big table 25 Columns and about 800000 Raws and user can select which column(s) he want to plot. My plot VI is always the same, I configured it as reentrant and start it using Invoke Node. I did Dispose Ref as True and hope if one clone will be closed, than used memory will be deallokated. Thank you

Yes, I use LV 8.5 Yes, my table will be updates only ONCE. Do I realy need FGV ? Can anybody say me if anything can be replaced to reduce memory usage? Here some screens.

QUOTE (neB @ Jun 10 2008, 03:11 PM) Thank you Ben for links. So, let me explain my problem. I have to programm an application, which postprocess some data, so it shoulb be like MS Excel. My programm should read raw data from flash over 7 Slots x 15000 Pages x 60 Datasets (each dataset contains ca. 10 doubles as binary) and show this data in a table. I don't show all the data on one table, but show one of 7 Slots and it's enough to make my PC slower and eats some RAM. The problem is, that this data is not only duplicated, much more the problem is the table with data. Because I convert binary data to ASCII ! It was the first part of the program. The second part should read the saved table convert it back to doubles (for plots) and make postprocessing. After poistprocessing I have to show the raw data and posprocessed data in one table. One row contains about 25 values! And this data is twice in RAM: doubles for plots and ASCII for the table. Not easy to handle this big dataset, so it's realy necessary to reduce the memory usage.

QUOTE (Aristos Queue @ Jun 10 2008, 02:32 AM) Thank You

QUOTE (jdunham @ Jun 10 2008, 12:07 AM) Ok, I see these rules are for Java, not for LabVIEW. But I would prefer in Java to programm modularely too. It can be good for beginners and small projects. If you have a big project you should, you have to make subvis or subfunctions online (during programming time) or you have one big function over 10-20 sites. And if you have it, than it is not to easy, to make some modules or subvis from it.

QUOTE (jdunham @ Jun 10 2008, 12:07 AM) Sorry, I don`t agree to this rule.

QUOTE (crelf @ Jun 9 2008, 11:17 PM) I think you know it, I want to write my tutorial and have to know these things to be sure what I write.

QUOTE (Yen @ Jun 9 2008, 09:56 PM) So a tunnel will copy the data from one wire to other and is a node at all because of copy action ? Ok. Is a input or output of a subvi a node? Do it copy data? I think no, but I am not sure.