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Showing content with the highest reputation since 10/30/2019 in Posts

  1. “There was this fence where we pressed our faces and felt the wind turn warm and held to the fence and forgot who we were or where we came from but dreamed of who we might be and where we might go...” -- Opening lines of “R is for Rocket” by Ray Bradbury I spent 20 years building this G language of ours. It’s time for me to go enjoy the fruits of that labor as a user! I will still be employed by NI, but I will be working full time for Blue Origin. As part of the NI “Engineer in Residence” program, I will be on loan to Blue Origin to revise their engine and support test systems. They
    10 points
  2. The core of our business has changed. Fewer users are developing their own test applications; instead, they're buying something off the shelf like TestStand. Fewer users are developing their own data acquisition software; instead, they're buying something off the shelf like FlexLogger. This trend alters significantly the role of LabVIEW (CG and NXG) in the NI ecosystem -- it becomes far less important to support whole application development (though, of course, we still do and will) and far more important to support "just a bit of customization" when the pre-built tools fail. A lot of softwar
    7 points
  3. Why are so many things just that little bit harder in or weirder in NXG? I am trying to use it to make my first "real" application, in this case a relatively simple WebVI. I put this list down in the hope someone can tell me I am being dumb and there is a sensible way to do these thing Why can I not easily branch off a wire by clicking on it somewhere? Now I have to right click and select the option to create a wire branch Why can I not right click on a primitive to open the sub-palette for that thing to give me similar items. I can right click and replace or right-click and
    6 points
  4. Thanks AQ, you are the first to actually spell this out in words that make sense to engineers. Not sure too many here are going to like it though! ps: I liked your post due to its honesty and absence of marketing weasel words, not because I think this is a particularly good strategy for NI. Maybe I have just had a weird career but in the 20 years or so I have been developing LabVIEW based solutions virtually never would a custom off-the-shelf piece of software like Signal Express or similar come anywhere close to doing what I needed it to and it would require so much customisation th
    6 points
  5. I don't mind the new green on the landing page of ni.com, but elsewhere on the site the new theme is a bit too much. I wanted to fix the near invisible links that @LogMAN ran into, but got a bit carried away: If anyone is interested in using the blue style, you can download it from here. Be warned it's not perfect, there's still lots of green bits on mouse over etc, but I find overall it makes the site much more readable. If blue isn't your thing, the primary color can be changed by setting the root --forrest-green color to something else.
    6 points
  6. The more I look at the center logo, the more I believe it captures exactly the kind of excitement generated by the whole operation.
    6 points
  7. Thanks for putting down all your thoughts and providing examples, Neil. I agree with every point you've made. Have you used the Shared Library Interface editor yet? That's some next level UI inconsistency. I wrote a couple of blog posts on my experience converting a small (< 100 VIs, < 10 classes) LabVIEW project to NXG (see Let's Convert A LabVIEW Project to LabVIEW NXG! Part 1 and Part 2). During the process I made a lengthy list of issues and came to the same conclusions many people have voiced in this thread. Of the issues uncovered during the conversion, some were due to missin
    6 points
  8. The New Data Value Ref and Delete Data Value Ref nodes will be able to be in inline VIs (and thus malleable VIs) in LV 2020.
    6 points
  9. View File Hooovahh's Tremendous TDMS Toolkit This toolkit combines a variety of TDMS functions and tools into a single package. The initial release has a variety of features: - Classes for Circular, Periodic, Size, and Time of Day TDMS generation with examples of using each - Reading and Writing Clusters into TDMS Channels - XLSX Conversion example - File operations for combining files, renaming, moving, and saving in memory to zip - Basic function for splitting TDMS file into segments (useful for corrupt files) - Reorder TDMS Channel with
    6 points
  10. All of the presentations are now on the LabVIEW Wiki. You can find them at: https://labviewwiki.org/wiki/Americas_CLA_Summit_2019 Thanks Kevin Shirey and Mark Balla for producing the videos and all those that volunteered to run the cameras. This is an awesome resource to be able to go re-watch and review these great presentations again or for those that couldn't join us in person to be able to view them as well.
    6 points
  11. @Aristos Queue, I was part of the private preview event and afterwards there were several comments basically saying "I watched all of this and have no idea what NI is announcing". And multiple requests that NI make it clear what they are trying to announce. I thought maybe the public event would be more clear. Nope, dozens of comments were flying in asking what, if anything was changing as the event went on. After the event ended my favorite comment was "That was a great introduction, but when does the actual event start?". Threads on Reddit, LAVA, and NI all have had various amounts of "
    5 points
  12. The logo is pretty uninspired and looks lifted from this company. It's going to take some time to get used to the green theme too - in my mind NI = blue + white. I wonder if NXG will get a green coat of paint. I'll reserve judgement on the content until I've seen the webinar, but it's heavy with cringe worthy marketing speak. Also, a moment of silence for Nigel the NI eagle. Soar Ambitiously™, N 🦅
    5 points
  13. My experiment with NXG is now over. A simple web page has taken about 5x longer than I had planned for. Some of this is due to me underestimating the nuances of the web module but most of it has been me fighting the new IDE. The other night instead of happily diving into some after dinner software development fun I was actually filled with dread at the thought of having to open NXG and finish what I started, it really is that unpleasant to use. For me, NXG is nowhere near usable in a real project that I expect to have to develop, maintain and make money off. Some stuff seems to work, but
    5 points
  14. For a final Case. Sadly there isn't any non-depreciated Items to replace that vi. Which makes this work for Clusterzilla. ArrayToCluster.vim
    5 points
  15. Hey LAVA friends. I'm going to be doing a live-stream on Youtube next Tuesday April 28, (10AM Pacific) to go over LabVIEW Community Edition. I'd love to see you guys there. It'll be interactive with chat for your questions, and I will be making an attempt to talk to a Raspberry Pi and Arduino. If you're curious about low-cost hardware or just want to find out what's new in the latest LabVIEW. Join me here: https://youtu.be/4HLVqYXpxIo. Edit: If any of you have done any projects with the supported hardware. Let me know and I can mention you or pull you into the discussion. - Thanks.
    5 points
  16. The main difference between LabVIEW and a C compiled file is that the compiled code of each VI is contained in that VI and then the LabVIEW Runtime links together these code junks when it loads the VIs. In C the code junks are per C source file, put into object files, and all those object files are then linked together when building the final LIB, DLL or EXE. Such an executable image still has relocation tables that the loader will have to adjust when the code is loaded into a different memory address than what its prefered memory address was defined to be at link time. But that is a pretty si
    5 points
  17. Found a fix for this. It should be fixed in LV 2020. The bug ONLY affects copying from a 1-element cluster of variant to a variant. Or a cluster of cluster of variant to a variant. Or... you get the idea... "any number of cluster-shells all containing 1 element, culminating in a variant" being copied to a variant. This was a fun bug... consider this: The memory layout for an byte-size integer is { 8 bits } The memory layout for a cluster of 1 byte-size integer is { 8 bits } They are identical. "Cluster" doesn't add any bits to the data. That's just the type descrip
    5 points
  18. Hi Everyone, I was just alerted to this discussion (thanks @drjdpowell), so I wanted to be sure I heard all the feedback, to make sure we're staying on top it. Before I dive in, I'll mention there is a version 2020.1 in beta right now (if you can't access this, please be sure you sign up for the beta and/or send me a PM). This addresses many of the points raised here, so please check it out. Also, it's important to mention that VIPM 2020 had a LOT of work (and love) put into it, and the beta+launch was in the middle of COVID-19, so things didn't get as many eyes (i.e. beta
    4 points
  19. In an attempt to standardize my handling of formatting timestamps as text, I have added functions to "JDP Science Common Utilities" (a VI support package, on the Tools Network). This is used by SQLite Library (version just released) and JSONtext (next release), but they can also be used by themselves (LabVIEW 2013+). Follows RFC3339, and supports local-time offsets.
    4 points
  20. I discussed with @Mark Balla and we figured out a way to get all the old videos that used to be on the Tecnova site up to Youtube. It will take a few days but this is in progress. Probably within a week all the videos should be up. I will update this thread with progress.
    4 points
  21. You can edit that wiki if you have more info. or write your comments in "Discussion" page if you're unsure about editing it directly. I created a whole category of articles there: https://labviewwiki.org/wiki/Category:LabVIEW_internals
    4 points
  22. Hi all, friendly LAVA moderator here. I'd just like to gently remind everyone we are all human, and are at times emotional, and at times frustrated with colleges we interact with. Lets all take a deep breath and try to continue to give criticism in a form that will be most helpful. I know I've at times flown off the handle online, especially on the subject of NXG. I personally don't think I've shared code between projects for anything real project anytime recently. But I can remember times that I did it and didn't have any real problem. Likely because I was mindful of what effected w
    4 points
  23. LabVIEW Community Edition rocks! In order to help kick off this momentous occasion, I've put together an example alarm clock. It is broken down into 6 lessons (so far) taking you from blinking an led through creating an alarm clock with a state machine. To download or learn about LabVIEW Community Edition check out GCentral.org Check out the alarm clock here! <-(http://bit.ly/ChrisCilino_LabVIEWCommunityAndRP)
    4 points
  24. So first I want to acknowledge some areas we could have done better. I have been involved in a number of discussions around what our migration strategy looks like, and the biggest gap we immediately identified is a lack of clear external messaging, so that is something we are looking to address. I have talked to all different kinds of users, and in a relatively short discussion we are able to align on whether or not NXG is ready for their use case. That is great, but you should be able to make that determination yourself by looking at public documentation, it should not require a call with me
    4 points
  25. So I just discovered this, this morning and I think it will help out in making VIMs when dealing with supporting a scalar, or 1D array data type. I have an example which is my Filter 1D Array VIM, posted here, which is heavily inspired by OpenG's implementation. In it the developer can filter out a scalar, or a 1D array of something from a 1D array. I did this by adding a Type Specialized structure at the start which checks to see if after building the array, if the data type matched in the incoming array. If so it is a scalar and should be used. I then have another case where the dat
    4 points
  26. I found this tonight while working on a project: https://remixicon.com/ Really good icon library with modern-looking icons where you can customize the color and size of the icons, then download them as PNG files. I then import them into a LabVIEW pict ring and it's off to the races.
    4 points
  27. It is not a bug. It should break for any unsigned integers because that's how the "negate" method works.
    4 points
  28. I'm working on a personal project (more information will be shared about this later) that needs Message Queue Telemetry Transport (MQTT). While searching for LabVIEW libraries for MQTT I found 1 on VIPM, 2 in the NI Forums, and 1 through Goggle on GitHub, as follows: WireQueue-MQTT Driver for LabVIEW by WireFlow AB (this one costs $550) MQTT Client API in native LabVIEW by Peter - daq.io (also on GitHub as LVMQTT) MQTT-LabVIEW by Michal Radziwon Quaxo MQTT LabVIEW by Stefan May This is not unusual for just about anything you might be looking for. In fact searc
    4 points
  29. Here you go. Set Icon.vi Use it like this: To get back to the original icon just call it with an empty path.
    4 points
  30. I assume you meant this video? There is this older video of Dr. T and Jeff K. introducing a LabVIEW Basics Interactive CD-ROM (~LabVIEW 4), but it's not as exciting as the LabVIEW 5 promo.
    4 points
  31. For comment, here is a beta version of the next SQLite Library release (1.11). It has a significant new feature of a "Parameter(s)" input to the "Execute SQL" functions. This can be a single parameter or a cluster of multiple parameters. Uses Variant functions and will be not as performance as a more explicit preparing and binding of a Statement object, but should be easier to code. drjdpowell_lib_sqlite_labview-1.11.0.86.vip
    3 points
  32. I want to remind once again that all this information is just to have fun playing with LabVIEW and not intended for real projects use. I believe you all understand that. 🙂 Not that a big opening here and even not an opening for some ones, but I found this interesting enough to make a thread. As you may already know, when some library is being called using CLF Node, LabVIEW enters ExtFuncWrapper first to do some guard checks to prevent itself from a silent crash and output some error message to the user instead. I've always considered that wrapper boring enough to study, thus never looked
    3 points
  33. After starting NXG 5.0.0 and traditional hang of the whole OS for 3 minutes, LabVIEW forgot how to write text on the screen Ok, not only LabVIEW, other apps too... They used to have a name software that caused weird system behaviour: a virus...
    3 points
  34. Here are my points: By default it should list about 15 to 20 of the most recently updated packages. That way even new packages get promoted and it doesn't feel "static". I want to select between a few high level categories (i.e. Frameworks, Utilities, Drivers). I want to specify the version of LV that the package should support (it should take older package versions into account). Each package should provide some key facts: Name, version, author, summary, picture, rating, price, download count, download button. I want to open the details page if I find a package
    3 points
  35. on that note, stumbled upon this last night...
    3 points
  36. The Application class has a couple of private methods which can do this (called Global Data.Set and Get) which operate on a name and a variant value (I believe this goes back at least to 2009). I think this should persist across QD calls. Note that you should pick a name which will be different from other things which might exist in the system.
    3 points
  37. TL;DR: This is NOT a bug. It is all explainable by the normal behavior of the memory management mechanisms used by LabVIEW, including a memory allocator layer provided by SmartHeap (from MicroQuill). Details: Actually the original bug report in Dec 2013 by Mr Mike (bonjour, Mike!) was pretty accurately analyzed and documented by Ryan P in 2014 and the bug was closed then. Mike's post from today did manage to gain the attention of someone else at NI, who asked me to take a look. I reviewed the VIs from this page and decided I could explain all the behavior with actual numbers. See the en
    3 points
  38. This actually sums it up quite nicely 😋
    3 points
  39. I think the longer my relationship with NI carries on, the more the message seems to be that I'm not considered part of the direction NI is concentrating on at all. In a way, the new announcement is a bit like "this isn't designed for you, do you hear us loud and clear?"
    3 points
  40. Hi! Great article, indeed. I'd like to add some little notes, that I've known of. - I saw Heap Peek in LabVIEW 2.5 already. I could propose, that it was always in LabVIEW, in any version maybe, but I can't check it right now, because I don't have LabVIEW 1.0 or 2.0 distros. - There exists another way to get Heap Peek window visible. You could use some utility to deal with applications windows, like WinSpy++ or Window Detective or any similar tool. Heap Peek is hidden window by default, but it may be displayed easily. - Those hex numbers in the upper right section of H
    3 points
  41. NXG actually seems quite good at figuring out what I am looking for with quick drop; I just type the name of the primitive and it appears. This is good as I cannot identify anything because the new icons all look totally weird to me...
    3 points
  42. Thanks. It was mostly to satisfy myself I wasn't missing some game changing feature or workflow in NXG that was hidden behind its slow and drab exterior. Like you, I haven't seen any examples of large projects running under NXG so wanted to document at least a small project. There was one NXG product owner who saw it and took the time to respond, and noted the event structure feedback was useful. I think it had some support for clusters of clusters (see Neil's example), but definitely not for classes and references. Here's a few more issues that I ran into: Ther
    3 points
  43. I thought I'd reply to this thread for posterity. LabVIEW Community Edition is now fully released starting today. Just to summarize: LabVIEW 2020 and NXG 5.0 are part of the release. Includes everything that comes with LabVIEW and NXG Professional Edition, Including App Builder (exe builds). No watermarks or feature restrictions LabVIEW NXG Community Edition includes the LabVIEW NXG Web Module Extending SystemLink Cloud evaluation to 6 months during 2020 LINX toolkit included with install. Supports: Arduino via se
    3 points
  44. MAX That is all.
    3 points
  45. No Classic LabVIEW doesn't and it never will. It assumes a string to be in whatever encoding the current user session has. That's for most LabVIEW installations out there codepage 1252 (over 90% of LabVIEW installations run on Windows and most of them on Western Windows installations). When LabVIEW classic was developed (around end of the 80ies of the last century codepages was the best thing out there that could be used for different installations and Unicode didn't even exist. The first Unicode proposal is from 1988 and proposed a 16 bit Unicode alphabet. Microsoft was in fact an early
    3 points


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