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Justin Goeres

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Everything posted by Justin Goeres

  1. Where can you find cool beers, mesquite BBQ, and good times with all your friends from LAVA, OpenG, and the LabVIEW community at large? At the 2010 LAVA / OpenG NIWeek Bar-B-Q! This yearly tradition brings together all your best online (and real-life!) friends from LAVA (LabVIEW Advanced Virtual Architects), OpenG (home of LabVIEW's open source community), and even NI R&D. Come enjoy great barbecue with great people away from the hustle & bustle of the convention floor. Menu is TBD but is likely to include brisket, chicken, and pork ribs*. Date: Tuesday, August 3rd, 2010, 7:00 PM (after the NIWeek "Block Diagram Party") Location: Scholz Garten, 1607 San Jacinto Blvd, Austin, TX 78701 Cost: $30 per person PRE-REGISTRATION IS NOW CLOSED! There are still a small number of tickets left. If you want one and have not purchased one yet. please find Justin Goeres on the NIWeek floor (JKI / Booth #841) and pay him $30 in person. * Vegetarian food will be available on request -- contact me privately (or publicly!) if you want to know more.
  2. All I know is any country that calls its national soccer team "The Socceroos" can count me as a fan.
  3. A different friend of mine submitted it to Digg: http://digg.com/gadg...popcorn_machine I dugg it!
  4. If you follow me on Twitter you might already know that a friend and I recently entered a Popcorn company's contest to make a video of the "most inventive way to pop this all-American snack." Our idea: Write a LabVIEW program to find #popcorn tweets on Twitter, drive an NXT-powered contraption to deliver popcorn to a popping machine, and create the world's first crowd-sourced Internet snack! If you watched it, and if you liked it, and if you're on Facebook, can you now do me a favor? We're trying to win a contest here. To win, this video needs to have the most Likes on the Fireworks Popcorn's Facebook Wall. The easiest way to vote is the following: Make sure you're logged into Facebook (if you're not a Facebook member you can't vote, so you can stop now ) Click this link to go directly to the post about the video. Click the Become a Fan button to become a fan of Fireworks Popcorn. You should stay on the same page as in #2; if it redirected you somewhere else, click the link in #2 again. Click the Like link under the post about the video. Thanks!
  5. Gravity Waves? Actually they're shockwaves of insight emanating from each reader as they progress through the book. These waves propagate outward spherically (the book cover is merely a 2d projection!) and intersect with the shockwaves produced by other readers, in places like LAVA. What's interesting is that these waves have special properties. First, the energy of any point on the wavefront is not a function of its distance from the origin. That's to say that the farther the wave travels and the more people it touches, the more total energy it carries. Secondly, when multiple waves intersect at a given point, they always interfere constructively.
  6. OH NOES! Argh. I could've sworn I copied & pasted. Oops. EDIT: Nevermind. I did use the correct spelling to generate the anagrams (like I said, I copied & pasted). I just typed it wrong at the top of my post.
  7. Selected anagrams of Elliott Darcy Relf: (edit: fixed misspelled name in link text. the anagrams themselves are correct.) Latticed Elf Lorry Called Tritely For It Corralled Lefty Electoral Dirt Fly Fecal Ditty Roller Torridly Let Fecal Craftier Old Telly Title Farce Drolly Fed Troll Literacy Frilly Rotted Lace Clearly Filed Tort Do Filter Rectally
  8. Allow me to offer my most belated of deep congratulations, as well. But what impresses me most is that you haven't let the new responsibilities of fatherhood get in the way of your true passion: (American) Football. "Little-used backup quarterback Chris Relf accounted for three touchdowns, Anthony Dixon set the Mississippi State single-season rushing record and the Bulldogs upset No. 20 Mississippi 41-27 in the Egg Bowl on Saturday." So congratulations on that, too!
  9. Interesting. What happens when you do a dir in that directory from a Windows Command prompt (like in my third screenshot)? Do the $, !, and/or # files sort above . and .. like I saw?
  10. I'm aware of that, but they're "phantom" in the sense that they shouldn't be returned by the List Folders operation (and aren't, except on network shares). That's the issue.
  11. (crossposted to NI Forums) I'm seeing a behavior where LabVIEW's List Folder primitive returns incorrect results for a folder on a mapped network drive, if the folder contains a file whose name starts with any of: <space> ! # $ % & ( ) + , - (I suspect it's actually any ASCII character whose value is less than or equal to 0x2D, but some of those are illegal and/or unprintable). OS: WindowsXP LV Version: LabVIEW 8.6 and LabVIEW 2009 Steps to Reproduce (1) Map a network drive to a drive letter (I'm not sure that a mapped drive is necessary, and the network drive in this demonstration is a samba share from a Linux system). (2) Create a file in a directory on the network share from #1, e.g. "Z:\list-folder-bug\file.txt". (3) Note that LabVIEW's List Folder function returns correct results when listing the folder you just created. (4) Rename the file you created in #2 above, changing its name to !file.txt. (The key is that the filename must start with !, or any of the other characters listed above.) (5) Note that LabVIEW's List Folder function now returns two elements in folder names that don't really exist. Why This Is Important This is important because these phantom directories "." and ".." are expanded to "current directory" and "parent directory," which means LabVIEW thinks that the target directory contains a copy of itself and its parent. This produces an infinite recursion when listing directory contents recursively. In particular, the OpenG function List Directory Recursively is affected by this bug and enters an infinite loop when run on the directory shown in #5. Bonus Information Note, also that the dir command at the Windows Command Prompt sorts the file list in an odd way for files that begin with the aforementioned characters, but only on network shares.
  12. If you follow me on Twitter, you probably already know that I own the "metric system" lunchbox mentioned in this list of the worst lunchboxes ever. The article, however, only shows the front of the lunch box. There's 5 more sides to the Exciting World of Metrics. So I thought I'd post the other faces of the lunch box here. Note: This was not a lunchbox I originally owned as a child. I bought it in a kitschy retro-70s-&-80s-crap store in downtown Portland a few years ago. Back in my elementary school years, I rolled with a sweet Return of the Jedi lunchbox, and then later on an even more awesome Dragon's Lair lunchbox.
  13. Justin Goeres

    Pun

    Via a friend of mine, so don't blame me. I just ported it to LabVIEW .
  14. "You stick out your thumb, and then you jerk it quickly upwards, like this."
  15. I see. Well, then it's back to the drawing board .
  16. Something to consider is that even though the original array has been decimated into N new arrays of M length, M is the same for every output array. I have it in the back of my head that LabVIEW describes arrays in memory with a size (M), a pointer to the 0th element, and a step value (or something like that). Could it be that all the N decimated arrays are actually sharing literally the same M length value in the same register?
  17. I somehow missed the dust-up over eHarmony not allowing people to be gay. CollegeHumor taught me something!
  18. Version 1.0.1

    2,711 downloads

    Copyright © 2007, Justin Goeres Engineering All rights reserved. AUTHOR: Justin J. Goeres --see readme file for contact information DESCRIPTION: This library provides an LVOOP-based interface to the powerful cross-platform ImageMagick image handling utility suite. It supports all of the ImageMagick utilities and almost every command-line operator (over 200 of them) with support for custom user-specfied operators for the edge cases. Several examples are included that demonstrate basic text & image creation, composition, and conversion in and out of LabVIEW (including VI icon creation). GETTING STARTED: The first thing you need to know about ImageMagick is that it has a pretty steep learning curve. Complicated things are complicated, and easy things are sometimes complicated, too. The Example VIs provided with the project are intended to give you a basic start on how to use the library, but you should expect to consult an ImageMagick Examples Page frequently. COMPATIBILITY: The library is written for cross-platform usage, but is currently limited to compatibility with Windows because I don't have any non-Windows LabVIEW machines to write the platform-specific code on. If you can help out with compatibility for other platforms, please contact me. I would LOVE to hear from you. REQUIREMENTS: A working Windows ImageMagick installation. Tested with ImageMagick v6.3.4-Q16. Almost certainly works with later versions, and probably with earlier versions back to at least v5.4.8. (Personal testimonials on this are welcome.) REQUIRED minimum OpenG Packages: oglib-error-2.3.2 oglib-lvdata-2.7.2 RECOMMENDED OpenG Packages: (used in examples, but not in the core functions) oglib-file-2.8.1 oglib-array-2.5.1 KNOWN ISSUES: Currently applications built against this library throw a litany of execution errors when run in the RTE. If you need to build these libraries into an application, please contact me and I will try to help you. Functions for a few of the built-in pattern generators are not completely implemented. You can access them using a custom raw operator argument. CHANGE LOG: 1.0.1: Fixed an incompatibility with ImageMagick 6.3.4 when using certain operators. Added a better error message when ImageMagick can't be located under Windows. (6/19/2007) 1.0.0: Initial release (06/18/2007)
  19. Name: LVOOP ImageMagick Interface Submitter: Justin Goeres Submitted: 02 Jul 2009 File Updated: 03 Jan 2011 Category: Machine Vision & Imaging LabVIEW Version: 8.2 License Type: Lesser GNU Public Copyright © 2007, Justin Goeres Engineering All rights reserved. AUTHOR: Justin J. Goeres --see readme file for contact information DESCRIPTION: This library provides an LVOOP-based interface to the powerful cross-platform ImageMagick image handling utility suite. It supports all of the ImageMagick utilities and almost every command-line operator (over 200 of them) with support for custom user-specfied operators for the edge cases. Several examples are included that demonstrate basic text & image creation, composition, and conversion in and out of LabVIEW (including VI icon creation). GETTING STARTED: The first thing you need to know about ImageMagick is that it has a pretty steep learning curve. Complicated things are complicated, and easy things are sometimes complicated, too. The Example VIs provided with the project are intended to give you a basic start on how to use the library, but you should expect to consult an ImageMagick Examples Page frequently. COMPATIBILITY: The library is written for cross-platform usage, but is currently limited to compatibility with Windows because I don't have any non-Windows LabVIEW machines to write the platform-specific code on. If you can help out with compatibility for other platforms, please contact me. I would LOVE to hear from you. REQUIREMENTS: A working Windows ImageMagick installation. Tested with ImageMagick v6.3.4-Q16. Almost certainly works with later versions, and probably with earlier versions back to at least v5.4.8. (Personal testimonials on this are welcome.) REQUIRED minimum OpenG Packages: oglib-error-2.3.2 oglib-lvdata-2.7.2 RECOMMENDED OpenG Packages: (used in examples, but not in the core functions) oglib-file-2.8.1 oglib-array-2.5.1 KNOWN ISSUES: Currently applications built against this library throw a litany of execution errors when run in the RTE. If you need to build these libraries into an application, please contact me and I will try to help you. Functions for a few of the built-in pattern generators are not completely implemented. You can access them using a custom raw operator argument. CHANGE LOG: 1.0.1: Fixed an incompatibility with ImageMagick 6.3.4 when using certain operators. Added a better error message when ImageMagick can't be located under Windows. (6/19/2007) 1.0.0: Initial release (06/18/2007) Click here to download this file
  20. 1,424 downloads

    Copyright © 2006, Justin Goeres Engineering All rights reserved. Author: Justin Goeres --see readme file for contact information Description: This VI provides a simple batch image conversion interface to the ImageMagick 'convert' utility. It converts and resizes groups of images specified by the user (it was originally developed for organizing documentation screenshots). Be warned that this is a pretty simple VI. It has basic error reporting & handling. It should serve as a starting point for people who want to explore the usage of ImageMagick with LabVIEW. This VI is Windows-only (the registry lookup and calling syntax are OS-specific), but it would not be difficult to adapt to other OSes. Requirements: A working Windows ImageMagick installation. Change Log: 1.0.1: bugfix (12/11/2006) - Removed SCC .svn folders 1.0.0: Initial release (11/27/2006)
  21. Name: ImageMagick Batch Image Converter VI Submitter: LAVA 1.0 Content Submitted: 03 Jul 2009 File Updated: 03 Jul 2009 Category: Machine Vision & Imaging LabVIEW Version: 7.1 Version: 1.0.1 License Type: Creative Commons Attribution 3.0 Potentially make this available on the VI Package Network?: Undecided Copyright © 2006, Justin Goeres Engineering All rights reserved. Author: Justin Goeres --see readme file for contact information Description: This VI provides a simple batch image conversion interface to the ImageMagick 'convert' utility. It converts and resizes groups of images specified by the user (it was originally developed for organizing documentation screenshots). Be warned that this is a pretty simple VI. It has basic error reporting & handling. It should serve as a starting point for people who want to explore the usage of ImageMagick with LabVIEW. This VI is Windows-only (the registry lookup and calling syntax are OS-specific), but it would not be difficult to adapt to other OSes. Requirements: A working Windows ImageMagick installation. Change Log: 1.0.1: bugfix (12/11/2006) - Removed SCC .svn folders 1.0.0: Initial release (11/27/2006) Click here to download this file
  22. Can y'all do me a huge favor by helping to stuff an internet ballot box for me? NPR (National Public Radio) did a story today about the worst wedding party songs ever. On the radio they requested that people go to their website and add their own "worst wedding song" stories, and the best ones would be selected to be read on the radio. Obviously this isn't a democratic vote and is driven by the producers, not hordes of random internet lurkers, but since there is a sort of "voting" component, can you please stuff the ballot box for me? If you have 15 seconds to spare, do this: Click this link. Scroll to the bottom of the page and find my entry (posted by "Justin Goeres"). Right now it's near the top if you sort by "Most Recent". When you find it, click the "Recommended" link next to it. For reference, here's my story: QUOTE And for the record, it's 100% true. Thanks!
  23. QUOTE (Black Pearl @ May 8 2009, 01:24 AM) I agree that it's sort of counterintuitive at first, but what would you expect the result to be instead? Even though the For Loop executes zero times, there has to be a data value on the I wire coming out -- that's the nature of dataflow. In this case, what's happening is that wire is taking the default value of its datatype (I32), and that value is 0.
  24. QUOTE (normandinf @ May 6 2009, 07:36 AM) I asked a buddy of mine who's a C/Java programmer, and he said, "Null pointer exception." (no, seriously, that's what he said.)
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