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  1. Hello, I’ve been working with SQLite for a logging application and I thought I might offer my SQLite LabVIEW wrapper for possible inclusion in OpenG. There are at least two other implementations out there, both with licensing restrictions, but it would be nice to have this in OpenG as I think SQLite is a major addition to the capabilities of LabVIEW. Below is a zip file; it includes a couple of examples. SQLite LabVIEW.zip LabVIEW 2011. SQLite dll for Windows (32-bit) included. NOTE: more recent version now in the Code Repository. An (incomplete) menu: Here is the block diagram of Ex
  2. Hello, I'm trying to display an animated GIF on the front panel. This gif should be loaded programmatically based on some user event. My google search led me to use the OpenG Read GIF File (Animated)__ogtk.vi file. However, loading a GIF is extremely slow. It takes almost 20 seconds to execute the vi when I load the attached GIF (I found randomly on the internet). Is this normal? And if so, is there a way to load a gif faster? Because I need to load several and I cannot afford to load maybe 2 minutes only for the gifs.
  3. Having been using the Open G Zip Tools on both Windows and VxWorks targets for a long time I just ran into the issue of compatibility with Linux RT... I'm sure I can find an alternative on Linux RT, but the otpimal solution of course would be to have the existing toolkit also support Linux RT Has anyone compiled and modified the kit already for Linux (or set up a nice replacement)? Are there any plans to add such support in the official version? MTO
  4. Hi all, I've got a customer that wants to zip/unzip files on their cRIO-9035, so I had them playing with the OpenG Zip tools to see if it would fit their needs. Although they've found that they can zip files on their cRIO just fine, they find that they get disconnected from their RT target and the shell shows the following error message: LabVIEW caught a fatal signal 15.0 - Recieved SIGSEGV Reason: address not mapped to object Attempt to reference address: 0x0x10000000 stdin: is not a tty The zip file they're testing with includes two simple .txt files with short stri
  5. Hello to all. I have an application wich use; imaqdx (displays...), sliders, many controls and many indicators, and everything in a tab control of 3 pages and 2 subVI. I am trying to use "write and read panel to/from ini . vi". The first thing that my program does is to read panel from ini. Here there is the first problem because it gives the next error: "Error 91 "The data type of the variant is not compatible with the data type wired to the type input. Set control value" Here is my piece of code in image attached (boolean input in open.vi is True). I notticed th
  6. Hi. Im working on this prosjekt where I have a TCP communication between two computers (Server & Klient). I have managed to get communication between those two. (Sending and reciving one cluster.) But I want to send and recive more than one. I looked at det Topic "Passing Cluster and Datatype Through TCP" on how to use the OpenG, but I have a problem with "the Variant to Data". What am I doing wrong? Or is there another way to send more data? The Klient side: The Server side:
  7. There are some OpenG VIs, like the Variant Configuration File IO VIs, that use the legacy form of recursion (VI Server Call By Reference to self), which is (I believe) much less efficient than using the native recursion feature introduced in LabVIEW 2009. I would recommend changing all VIs that use legacy recursion to use native recursion, provided that a performance improvement would be gained. Here's a screenshot, showing what I mean:
  8. After reading this LabVIEW Idea exchange request: http://forums.ni.com/t5/LabVIEW-Idea-Exchange/Provide-a-better-way-to-implement-a-polymorphic-VI/idi-p/920487 I was inspired to create VI macro(s) to attempt to address the problem mentioned in the request. Attached is my first attempt and I'm looking for feedback since I know people here have strong opinions. The benefit of this method is that a single vim (or 2 could replace a polymorphic VI with over 48 separate VIs....unless I'm missing something. I know that VI macros are not officially supported by NI, but that hasn't stopped us
  9. OpenG’s Trim Whitespace fails on a string of all whitespace, if set to trim the front only. It returns the last whitespace character.
  10. My colleagues and I use the Fit VI to Largest Decoration function in OpenG all the time, and it (usually) works like a charm. I've got a fairly small Project, a simple State Machine that takes readings from a Vernier SensorDAQ device and plots it on a graph. I'm using a Queued State Machine pattern, so I begin by creating the State Machine Queue and enqueuing the Initialize State. The first thing I do inside Initialize is Fit VI to Largest Decoration, and it throws Error 1, pointing to the final FP.PanelBounds Property node that it is setting to resize the Window. I also watched this fu
  11. Hello, I have installed JKI VI Package Manager on my laptop running Windows 7, and everything is working fine. The problem is, we have a desktop computer in the lab which we are not allowed to connect to the internet because it contains sensitive patient information. However, I need to run the labVIEW program that I have successfully made work on my laptop (with the help of the VI Package Manager), on the desktop computer. I am not able to process this data on my laptop due to memory and speed problems. I installed everything that I needed on my laptop with the helpful instructions on
  12. Copyright, trademarks - all this legal stuff gets tricky! Here is a documented experience from a LabVIEW development company that had to change their brand names due to a conflict. Licenses can get complicated too. Did you know that any application you create in LabVIEW requires a copyright notice regarding NI? Essentially I want to make it easier for users and to lessen confusion (if any) when using OpenG. So, I want to start by talking about the OpenG licenses. There has been some questions raised about how to license applications that make use of OpenG libraries (e.g. here). See here for
  13. Currently, saving a date/timestamp to a config file saves it like this: Time Stamp = "00000000ÍAm#ß~p0000000000" I'd much prefer they be formatted like: Time Stamp = "2013-02-13T16:17:39.873Z" I realize this may run into some localization issues, but I'm fine with defaulting to the ISO 8601 format (or, you could change the "float number format" terminal to a generic "format string" input, and have float/time format strings line-delimited). The code to do so already exists in "Format Variant Into String", it checks if a waveform is a datestamp type before writing. This just needs to
  14. This OpenG Review is active. There are a few outstanding issues with the Variant Configuration as well as some feature requests so I thought it would be a good idea to start a summary thread to track them as well as to review all of these at the same time (in case of interactions etc...). Note: What will be implemented and when is not the point of this thread - that will be decided at a later date by the OpenG Team. If you know of an issue (link to an existing thread LAVA or OpenG), want to report something or have a new idea please post in this thread. For anything new, please create (or
  15. This package will be available for download through VIPM in a few days. This release and covers a request for the LabPython package to be view-able under the new 4.x Top Level Menus, and to fix a dependency issue (related to this thread). This package was tested with Python 2.5 on both Windows 7 x86 and Windows XP x86. If any developers want to continue to work on the Labpython project or any other OpenG project just PM me. Kind regards Jonathon Green OpenG Manager
  16. I was using the OpenG Periodic Trigger in an application and notice that my time base was drifting. After spending some time on it and rewritting to make it a little more readable I made a change to fix what seems to be a time leak to me. The change is made where it gets the new time after a trigger has occurred. If someone would take a look and give me feedback that would be great. Could this be an update to the OpenG Time library?Periodic Trigger.zip
  17. It's that time of year again. What will the next installment of the LAVA/OpenG BBQ bring? One thing is for sure - door prize galore! Past prizes have included (just to name a few): home-made creations, gift-cards, tablets, books, Ipods, LabVIEW goodness, software and even a plane-ride. We accept anything - so feel free to be creative! By donating a prize you and your company will receive free advertising in this thread. But wait, it doesn't stop there! When your donation is drawn on the night, you may take center stage and embrace fame thrust upon on you by the loving crowd who are anxious
  18. Hello, I recently used TDMS files in a customer application and for that purpose I made VIs to write/read clusters containing parameters to/from TDMS file. These VIs are basically *copies* of the Read Variant Key.vi and Write Variant Key.vi from the OpenG Variant Configuration File palette so I thought it would be a good idea to add it to OpenG. Hopefully it could help someone. PS: haven't tested these VIs extensively (with all possible data types in LabVIEW) but they do work fine with big clusters containing 1D and 2D arrays. Read Property Key from TDMS File.vi Write Property Key to TDM
  19. I ran into an interesting issue with the Array of VData to VCluster when using XControl references as part of the VData. It looks like it puts it together correctly into a cluster, but when trying to type back to the XControl reference type it throws an error. You can convert it back to a normal control type, but when doing generic sets on controls in a cluster that method doesn't work very well. LV2011, Latest verison of the library. Screen shots here and code attached. I actually tried it with a couple different XControls and it didn't work. I wouldn't think that this behaviour is n
  20. This package will be available for download through VIPM in a few days and contains new VIs for working with LVOOP data created by drjdpowell. The API has been designed with optimization improvements available in 2012 in mind. The palette has been approved by asbo [NEW] 3484610 - New LVOOP Data Functions Kind regards Jonathon Green OpenG Manager
  21. I would like to see OpenG version of the default 1,2 and 3 button dialogs offered by LabVIEW with an optional timeout. The purpose of such dialog is that it informs the user and allows him to take some action. If the user does not respond in time a default action would be taken. The timeout should default to '-1' meaning a timeout would never occure, the time-out would be configured in seconds, and the default button would show 'button-name[xxx]' with xxx in seconds until that action will be taken. Any thoughts? I'll try to come up with some protypes tomorrow. (perhaps an express VI) Ton
  22. This OpenG Review is closed. See Summary Post here. Please start a new thread to discuss new changes to this VI. Read this post for start of review. I’d like to suggest these three VIs (or similar) as possible LVOOP-object additions to the OpenG Toolkit: “Get Class Name” is a modification of “Get Name of Class of Object” posted by AQ. Here it just returns the basic class name (which I use often in custom probes and the like). "Get Default Object” is inspired by this discussion and uses AQ’s zero-iteration loop method. This is a very simple VI, but using it instead of the raw code is m
  23. I was researching the OpenG variantconfig issue 3005419 about decimal point localization and tried to view some of the files linked to the original discussion on the old OpenG forums. (http://forums.openg.org/index.php?showtopic=1117&pid=3034&st=0entry3034) The problem is whenever I try to access the VI that MADS linked or TonP's png image I get a file access not allowed because I am a guest. Is there a way of getting access to these? I was thinking that they had been linked over to the LAVA forums but I couldn't find it. Thanks Jason
  24. This package will be available for download through VIPM in a few days and covers some bug fixes, performance updates, and new VIs. [FIX] 3386531 - Get Array Element Default Data does not support Timestamp [FIX] 3252254 - "Set Variant Name.vi" Kills Attributes [FIX] 3386530 - Create new Waveform and Refnum TD subtype VIs [FIX] 3386538 - Update Variant Constant to LabVIEW 2009 appearance [FIX] 3411109 - Recursive VIs should use native recursion (lvdata) [FIX] 3411324 - New VI: "Get Default Data from Variant" Waveform and Refnum Subtype Enums There are now new VIs and Enum Controls f
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