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ensegre

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ensegre last won the day on August 27 2025

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    LabVIEW 2017
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    2003

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  1. ensegre
    So in LV>=20, using OpenSerializer.Base64 and G-Image. That simple. Linux just does not have IMAQ. Well, who said that the result should be an IMAQ image?
  2. ensegre
    Where do you get that from?
  3. ensegre
    Uhm. This is G-image. Am I missing something?
  4. ensegre
    I haven't yet really looked into, but why not just wrapping libjpeg, instead of endeavoring the didactic exercise of G-reinventing of the wheel?
  5. ensegre
    You could also check https://github.com/ISISSynchGroup/mjpeg-reader which provides a .Net solution (not tried). So, who volunteers for something working on linux?
  6. ensegre
    As for converting jpg streams in memory, very long time ago I have used https://forums.ni.com/t5/Example-Code/jpeg-string-to-picture/ta-p/3529632 (windows only). At the end of the discussion thread there, @dadreamer refers to https://forums.ni.com/t5/Machine-Vision/Convert-JPEG-image-in-memory-to-Imaq-Image/m-p/3786705#M51129, which links to an alternative WinAPI way.
  7. ensegre started following Using polymorphic VI as data selector for a Var_Tag array data type , How to load a base64-encoded image in LabVIEW? , What are some choices for producer-consumer protocols? and 1 other
  8. ensegre
    I haven't tried any of them, but these are the first 3 results popping up from a web search: https://forums.ni.com/t5/Example-Code/LabVIEW-Utility-VIs-for-Base64-and-Base32Hex-Encoding-Using/ta-p/3491477 https://www.vipm.io/package/labview_open_source_project_lib_serializer_base64/ https://github.com/LabVIEW-Open-Source/Serializer.Addons (apparently the repo of the code of the previous one)
  9. ensegre
    Redis is certainly high performance and suited to multiple, loose writers, readers and subscribers, with bindings for so many ecosystems. One of its several features, which I haven't perused, are Streams. I'd be curious too to know whether continuous cross-app data streaming could be efficiently implemented using them.
  10. ensegre
    So I have been given this monster FPGA project to patch. The main target VI is a monster with a BD of 9034x10913px, with 72 different loops . Yes there is some documentation an comments, but that does not really cut it. The logic uses I haven't counted how many tens or hundreds of different FIFOs and memory locations, read and written by this or that loop of the hyerarchy. Why, Why, don't I have a"Find all instances" for FIFOs , like there is for VIs, to navigate them?
  11. ensegre
    Maybe the question is if you have to be committed to this array of clusters of string+variant for some specific reason, or if it is an attempt to implement some architecture which might have a different implementation. I.e., I don't understand if yours is a general question about design, or a specific question about the mechanics of converting variants to data.
  12. ensegre
    Looking at the example of the OP, it looks he's already aware of typedefs. To him to say what exactly he meant.
  13. ensegre
    I must admit that I may have misunderstood what the OP wants to do, hence my answer may have been completely off. Is he rather trying to construct an array of heterogeneous elements, by flattening all his possible data types into a variant?
  14. ensegre
    A malleable VI may be neater, but it's a matter of taste. Something along the lines of this:
  15. ensegre
    i.e. crossover cable vs. null modem cable. But the OP says that the exe succeeds with the command, so that doesn't seem to be the issue here.
  16. ensegre
    Just to make sure - if you read 5 bytes, you get the first 5 bytes. If you increase the number to 'byte count', you would get a timeout warning if the other program really outputs only 5 bytes, but you would see the trailing ones, if there were. Also, right-click the string indicator, check 'Hex display' may come handy.
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