LAVA 1.0 Content
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QUOTE(ramekers @ Aug 29 2007, 01:29 PM) Hello René, Have you checked the example VIs ? There are a couple of them to demonstrate how to use the IMAQ function for calibration, and they don't look that complicated (I just had a look at the example VIs, I never indeed used them for an application). I suggest you launch the example finder (Help > Find Example), search gor "calibration" and see if it helps. Good luck, hope this helps
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Map, implemented with classes, for 8.5
LAVA 1.0 Content replied to Aristos Queue's topic in Object-Oriented Programming
QUOTE(Aristos Queue @ Aug 29 2007, 06:35 AM) Performance for a class like this would be want to be optimized. Are there any gains to be had by terminating both wires into a single sequence structure? Did you use two sequence structures on purpose? -
need help with speeding up a VI i built...
LAVA 1.0 Content replied to p27182's topic in Application Design & Architecture
Your situation is fairly common; you have a data stream that is faster than can be handled in real time. You need to simultaneously offload the communications buffer before it fills AND process the data. This is where LabVIEW queues and parallel execution become useful. Your program can be split into two loops; one to capture the RS-232 data, and the other to post-process and display the results. I've attached a modified version of your program; the upper loop reads the RS-232 data as quickly as possible, and places it in a queue. The lower loop periodically flushes the queue, selects the last element and converts it to coordinate data as before. Adjust the wait-next-multiple input in the lower loop to determine the display quality. If the VI still runs slowly, then you will need optimize other parts of your code. I'm curious to know if this alone will improve your performance (I'm guessing it will :thumbup: ) http://forums.lavag.org/index.php?act=attach&type=post&id=6794 (LV 8.2) -
Map, implemented with classes, for 8.5
LAVA 1.0 Content replied to Aristos Queue's topic in Object-Oriented Programming
QUOTE(Tomi Maila @ Aug 28 2007, 12:53 AM) oooooh goodie goodie goodie. I'm all a twitter! -
QUOTE(Ben @ Jun 19 2007, 08:04 AM) Actually it's not the largest vessel, it's the least manuverable vessel {typically, but not always, the largest}
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keeping multiple backups of a file
LAVA 1.0 Content replied to torekp's topic in Application Design & Architecture
Am I stating the obvious, but what about source code control? It does go the 'everyting' route, but I know for sure that Perforce optimizes the different versions so it does not necessarily save the entire file for each version. -
College course and a wife. You're just a glutton for punishment! j/k Looking it over now.
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create user defined property node?
LAVA 1.0 Content replied to jccorreu's topic in Development Environment (IDE)
You mentioned building a class.... which to me inferrs that you are using 8.2 or above... yet you say you're on 7.1.1 I'm assuming that you have mixed up your terms. That being said, had my system not rebooted before my earlier reply got sent, I would have said the same thing that Mike said regarding XControls. The one drawback to this approach is that you can not simply extend the properties of an existing control... say a slide You would need to replicate all of the properties of the single control you are intersted in within the XControl in order to expose them from the property nodes. Otherwise you will only have a ver generic set of properties available which although would include yours. I suggest that you investigate the Property Saver toolkit mentioned by Yen in another thread. I beilve that this is the link to it. This toolkit will allow you to extract all properties of a specific control for saving and other purposes {exposing in an x control} -
It's always good to meet with other people that enjoy coding with LV... Meetings could be as formal or informal depending on purpose.. We're thinking of covering advanced topics with an open forum, where everyone participates, thus exchange of ideas. As for informal meetings, we could have "get togethers" at places like "The Works". They have private dining areas for small groups (~10). I'm sure we all have "beer dinking LV stories" As Heiko mentionned, "we also plan on keeping these meetings from becoming NI sales pitches". << No sales / marketing! >>
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LOL!! Yeah! Those insane objects did drive me insane at one time.. (thus my avatar) Funny to see it with LegoMindstorm!!
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One thing that hasn't been asked. Can you program anything at all. When it comes down to it, LV is just another programming language, and if you can come up w/ some pseudo code or code in some other languauge it will also make this much easier.
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QUOTE(ronanmcc @ Aug 26 2007, 12:18 PM) Ok, Mr. Desparate. 99% of the folk here will scoff at your idea because they have all but forgotten how it feels to reap the benefits of ones own procrastination. Also you'll get lots of blowback about how you just can't learn LV in 10 days. I agree w/ them but I would rather get you by now w/ some over the top guidance on my behalf to get you to pass a project which I'm assuming that you're not the only one on. Anyways, if no one helped you, you would become one of those ppl who go on for verses about how LV is too hard to do anything. SO, that being said, ~,~The Captain accepts your challenge. So to start, put together a front panel display of what you want your end product to look like. No code. This picture along with a description of what you want to do may get us down the right track. Keep in mind, that the better you put together this front panel, the easier it will be to understand what your objectives and priorites are. Let the games begin!
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So the wife is out w/ her sister watching a movie and I'm left @ home w/ the baby and a short-stack of honeydoos. Whilst my head is in the tub and breathing in a disproportionate amount of scrubbing bubbles to oxygen somthing occured to me through the 5-th dimension. For as many times that we have heard from Aristos Queue that there are no constructors or deconstructors regarding LVoop....I disagree. Also..regarding the fact that when referring to an objects parents we must say 'she' or 'her' because a child that only has 1 parent must have at least a mother as stated by Aristos Queue on multiple occasions.. I also disagree I say that the man himself Aristos Queue, a.k.a. Stephen Mercer, is god of all objects and the Grand Object Constructor and deconstructor all in one! Thus proving that god exists and is a man! ~,~
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QUOTE(Justin Goeres @ Aug 25 2007, 04:59 PM) Actually that's a singleton Coke Box. Only 1 cat can get into the data at a time.
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ROFL
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Michael has a very detailed video located here explaining how to create the buttons. It helps if youv'e got both LV Versions 7 and 8 available.
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Obscurity comes in many forms, and has it's uses. Maybe you could justify the purchase as a security enhancement to your next project. Just don't exceed the 16k pixel long wire limit .
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Well not for long term monitoring, but as far as short term goes, I've found a custom probe I made 'Logged String' to be very useful. Logs last 48 elements real time and gives plot of delay between updates, so you can see if you have any states taking really long or whatever you can think of. Enjoy and use in good health http://forums.lavag.org/index.php?act=attach&type=post&id=6748 UPDATE: Just saw PJM's post above mine eh, I like mine more anyways
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QUOTE(orko @ Aug 23 2007, 03:27 PM) Yeah baby, I'll dance all over that function pallette. Gotta use the tippey toes to get down the context menus though.
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Connecting Labview and Java?
LAVA 1.0 Content replied to Daklu's topic in Remote Control, Monitoring and the Internet
QUOTE(Daklu @ Aug 21 2007, 11:58 PM) It shouldn't be that ugly, once you determine what commands and information need to be sent back and forth between LV and the JAVA app you will have a finite set of rules to handle. Simply watch the port for a command and length of data then wait for the correct number of bytes to come through and digest them in the proper state. How big is the list of possible interactions between the Java app and LV? -
I think that he's looking for some more information on how to use the dynamic event registration also. http://forums.lavag.org/index.php?act=attach&type=post&id=6713
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Possible to define cases based on variables?
LAVA 1.0 Content replied to Daklu's topic in LabVIEW General
If you want readability, why not use a formula node? http://forums.lavag.org/index.php?act=attach&type=post&id=6699http://forums.lavag.org/index.php?act=attach&type=post&id=6701 (LV 8.2) -
I put that in there just for you QUOTE(tcplomp @ Aug 21 2007, 12:42 AM) Mmmm. Brioche My mother makes it on the holidays. Left handed lysdexic Frenchmen revolt! !nioculoveR aL aviV
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I better stay the only one on the DDR response!!