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Everything posted by TobyD
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QUOTE (Amri @ Oct 31 2008, 10:50 AM) NI Vision is not currently supported on Linux (and there are no plans to offer support that I have heard about).
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QUOTE (jcarmody @ Oct 31 2008, 11:36 AM) Does anyone know where I can download the JKI State Machine?
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QUOTE (Ton @ Oct 31 2008, 10:25 AM) Ahhh, the null vote - I forgot about that option. Thanks Ton! And thanks to everyone else for a laugh
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I'm not sure if I'm missing something or if this is a bug. Look at any poll and the numbers in brackets after each possible "candidate" do not add up to the number of total votes reported.
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QUOTE (Megatron @ Oct 30 2008, 02:57 AM) I've said it before and I'll say it again. Get yourself a http://wiki.lavag.org/LabVIEW_Books' rel='nofollow' target="_blank">good book (I highly recommend LabVIEW for Everyone) and take the NI training classes if your budget allows. You will come up to speed much faster and write better code because of it. -Toby
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Namespace confusion
TobyD replied to Daklu's topic in Application Builder, Installers and code distribution
QUOTE (Daklu @ Oct 29 2008, 12:11 PM) The idea is that you only need one license to build packages. Then anyone who want to use the packages downloads the free version and installs them. You can tell your manager you're getting 10+ licenses because he/she doesn't know that everyone else is getting the free version :ninja: -
Namespace confusion
TobyD replied to Daklu's topic in Application Builder, Installers and code distribution
QUOTE (Ton @ Oct 28 2008, 11:34 PM) That's a great idea! I might try that one :thumbup: -
Vision Assistant 8.2 => use Labview VI
TobyD replied to professor_rumsdiegeige's topic in Machine Vision and Imaging
QUOTE (professor_rumsdiegeige @ Oct 29 2008, 01:57 AM) I am using Vision Assistant 8.6 and everything works fine. Are you able to call any other VIs? If I remember correctly, you have the option of installing Vision Assistant support for LabVIEW when you install Vision. If that didn't get installed it could be your issue. The only other thing I can think of that would cause this error is if you have installed an incompatible version of Vision and LabVIEW, but 8.2 should work with 8.2. -Toby -
Vision Assistant 8.2 => use Labview VI
TobyD replied to professor_rumsdiegeige's topic in Machine Vision and Imaging
QUOTE (professor_rumsdiegeige @ Oct 28 2008, 04:25 AM) My only suggestions are to triple check the path and make sure the VI is not saved in a hidden directory. Can you post a screenshot to show us how you are calling the VI. -Toby -
QUOTE (jdunham @ Oct 28 2008, 11:14 AM) Me Too.
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QUOTE (jdunham @ Oct 27 2008, 10:26 AM) Thanks! Apparently I had "show hidden folders" turned off so visaconf.ini didn't show up in any of my searches. It's definitely a Monday.
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I know there are a few Portal fans among us. I found a great free add-on this weekend. You can download it here (requires the full version of Portal). It is 19 new levels that are quite a bit trickier than the original, but not so complicated that they ruin the fun. The add-on was not done by Valve, but it is very professionally done. The storyline takes place before the original and leads up to the creation of GLaDOS. -Toby
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QUOTE (ooth @ May 15 2007, 01:43 PM) I am resurrecting this thread because I have the same question. I am currently working with LV 8.6 and VISA 4.4 and I would rather not manually configure visa aliases on each machine. Is there an ini file that stores the VISA aliases (I don't have a visaconf.ini file on my machine)? I know I can export my setting in MAX and then import them on each machine, but that is still a time consuming process. I'm also open to other suggestions if there is a better way to manage these settings. -Toby EDIT: I found http://digital.ni.com/public.nsf/allkb/F02B2BF8943A31D786257393005D16F1' target="_blank">this article on ni.com, but I'm running Vista and the application data folder no longer exists - still looking
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How to scale UI for Different Monitors
TobyD replied to dannyt's topic in Development Environment (IDE)
QUOTE (dannyt @ Oct 23 2008, 01:07 AM) We write quite a bit of code that runs on 800x600 touch screens, but I develop on a 24" 1920x1200 monitor. I generally drop a decoration on my front panel that is sized to the smallest resolution my code will run on (if I will be running at 800x600 I drop an 800x600 pixel rectangle on the front panel). I then know that anything I do in the GUI has to fit inside that decoration. Sometimes I may have to change the entire layout from what I had envisioned (adding tab controls for example) to fit everything into the space available without it looking too cramped, but it seems to always turn out pretty good when I put it on the smaller monitor. -Toby -
QUOTE (Antoine Châlons @ Oct 21 2008, 10:23 PM) It says http://www.coolhunting.com/archives/2008/04/de_grisogono_me.php' rel='nofollow' target="_blank">here that there were 177 produced. I did find one site that claimed to have one for sale, it said "Call for price." I wonder if they would do a credit check on me before telling me how much it costs?
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QUOTE (vronto31 @ Oct 23 2008, 06:12 AM) If it's the computer name you want and you are using windows you can do this... http://lavag.org/old_files/monthly_10_2008/post-8758-1224776206.png' target="_blank">
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QUOTE (Dan Bookwalter @ Oct 23 2008, 06:15 AM) I haven't tried this, but if I were to approach the issue without IMAQ or Vision I would start by comparing the image data of the two images. In the image data cluster is "image" array. Compare these arrays to a threshold value. If they differ by more than 80% (you'll have to play with the value) you know you have pretty significant changes in the picture. -Toby
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QUOTE (daveP @ Oct 21 2008, 09:06 AM) Hi Dave, normandinf beat me to it while I was making an example, but you should be able to utilize the interpolate VIs to get what you need. I have attached one example of what can be done with linear interpolation. Read your data into an array of clusters where each cluster contains your known x and coresponding y values. Then pass in the x values you want to know and the y values will be spit out. Play around with this until you get the kind of interpolation you need. -Toby http://lavag.org/old_files/post-8758-1224606781.vi'>Download File:post-8758-1224606781.vi
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QUOTE (Michael_Aivaliotis @ Oct 21 2008, 01:33 AM) HaHa! That's what I was thinking, Buddy. :thumbup:
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QUOTE (Altobo @ Oct 21 2008, 06:04 AM) If I understand you correctly, you are more interested in the timing and sequence of starting and stopping these "engines" than in the actual communication with the engines. Is that correct? This sounds like a perfect case to use a simple state machine architecture. Take some time to search here and on ni.com for state machines and see if it makes sense to you. Let us know if you have questions on the implementation. Out of curiosity, what is this project for? What will the engines be doing? -Toby
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QUOTE (km4hr @ Oct 21 2008, 07:57 AM) km4hr, As for running without the run arrow, take a look in VI Properties in the Execution category and set Run When Opened. Don't set this until you have you VI working pretty much the way you want it to. If you get stuck in a situation where you cannot get into the VI to edit it, simply drop your VI onto the block diagram of a new VI and you will be able to get into it for editing. Since you admit to being a beginner, I thought I'd volunteer my advice - take it for what it's worth. I would highly recommend getting yourself a good http://wiki.lavag.org/LabVIEW_Books' rel='nofollow' target="_blank">book on LabVIEW and spending a couple of days with it. I was a beginner not that long ago. I chose LabVIEW for Everyone and I learned more in the first two hours with that book than I had in the previous two weeks. It's a bit pricey, but definitely worth every penny in the time and trouble it will save you going forward. In the meantime, please don't hesitate to keep the questions coming. That's why we all hang out here -Toby
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QUOTE (Neville D @ Oct 20 2008, 10:11 AM) I am not familiar with the desktop PC utility tool, so my idea might suck, but you might try formatting your USB drive using the http://www.pcworld.com/downloads/file/fid,64963-order,4-page,1-c,peripherals/description.html' rel='nofollow' target="_blank">HP USB Disk Storage Format Tool. I have found other applications where a drive formatted in windows was not readable, but one formatted with the HP utility was.
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How to lock down a completed VI so it can't be modified?
TobyD replied to km4hr's topic in Source Code Control
QUOTE (PaulG. @ Oct 18 2008, 11:26 AM) I figured you must just be having a bad day because your reply seemed a bit out of character. :thumbup: As for the thumb drive - I strongly recommend that you not rely on this as the only form of backup you employ. Others have mentioned SCC, which is ideal, but even if you think that is overkill don't rely on just a thumb drive. I have seen those things corrupt data so many times I would never rely on them as my backup plan. -
How to lock down a completed VI so it can't be modified?
TobyD replied to km4hr's topic in Source Code Control
QUOTE (PaulG. @ Oct 16 2008, 06:23 PM) I couldn't help but point out that it's km4hr not "KM4HR". I hope today is going better for you PaulG. -
QUOTE (marp84 @ Oct 16 2008, 11:12 AM) Yes. Search the LabVIEW examples for filter or filtering and you will find many examples. As for frequency, the ecg signal frequency is generally between 0.1 and 250 Hz. The P-wave and T-wave are made up mostly of frequency components below 60 Hz, the R-wave also, but it has other frequency components up to 250 Hz. The problem is that you have many sources of noise that can effect such a weak signal. 60 Hz (or 50Hz depending on where you are) power line noise, low frequency noise caused by breathing or movement of the electrodes, and broader spectrum (1-5000Hz) electromyogram (EMG) noise usually caused general movement of the patient. You will need some extremely clean hardware amplification on the ecg signal (amplification factor of around 500) to be able to successfully filter out the noise with software. The ecg is a common project for students and there are hundreds of sites online with anything you've ever wanted to know about ecg signals (I happen to know because I made one for my junior year project not too many years ago ). -Toby