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• Is It Possible To Recover A Partial LVM Logical Volume?

  - by Terry Wang

  Background It is an Ubuntu 12.04 VirtualBox VM with 5 virtual HDDs (VDI), NOTE this is just a test VM, so not well planned ahead: ubuntu.vdi for / (/dev/mapper/ubuntu-root AKA /dev/ubuntu/root) and /home (/dev/mapper/ubuntu-home) weblogic.vdi - /dev/sdb (mounted on /bea for weblogic and other stuff) btrfs1.vdi - /dev/sdc (part of btrfs -m raid1…

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• 2D Procedural Terrain with box2d Assets

  - by Alex

  I'm making a game that invloves a tire moving through terrain that is generated randomly over 1000 points. The terrain is always a downwards incline like so: The actual box2d terrain extends one screen width behind and infront of the circular character. I'm now at a stage where I need to add gameplay elements to the terrain such as chasms or…

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• Mission critical embedded language

  - by Moe

  Maybe the question sounds a bit strange, so i'll explain a the background a little bit. Currently i'm working on a project at y university, which will be a complete on-board software for an satellite. The system is programmed in c++ on top of a real-time operating system. However, some subsystems like the attitude control system and the fault…

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• How can I get the palette of an 8-bit surface in SDL.NET/Tao.SDL?

  - by lolmaster

  I'm looking to get the palette of an 8-bit surface in SDL.NET if possible, or (more than likely) using Tao.SDL. This is because I want to do palette swapping with the palette directly, instead of blitting surfaces together to replace colours like how you would do it with a 32-bit surface. I've gotten the SDL_Surface and the SDL_PixelFormat,…

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• Python or Ruby for freelance?

  - by Sophia

  Hello, I'm Sophia. I have an interest in self-learning either Python, or Ruby. The primary reason for my interest is to make my life more stable by having freelance work = $. It seems that programming offers a way for me to escape my condition of poverty (I'm on the edge of homelessness right now) while at the same time making it possible…

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• What are the pros (and cons) of using “Sign in with Twitter/Facebook” for a new website?

  - by Paul D. Waite

  Myself and a friend are looking to launch a little forum site. I’m considering using the “Sign in with Facebook/Twitter” APIs, possibly exclusively (a la e.g. Lanyrd), for user login. I haven’t used either of these before, nor run a site with user logins at all. What are the pros (and cons) of these APIs? Specifically: What benefits do I…

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• What language should I use for making a cross platform library?

  - by Andrei

  I want to build a SyncML parsing library (no UI) which should be able to build up messages based on information provided by the host application, fed in by the library's methods. Also, the library should to be able to do callbacks to methods in the host application. I want to be able to compile this and have it available on as many…

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• /planes and /clubs or /wiki/planes and /wiki/clubs

  - by Jelmer

  I am currently working on a nice application about which I can't share all the details, but it will have some sort of a wiki part. In this wiki, you will be able to change the planes as well as the clubs, maybe in the future it will be possible to change the countries and manufacturers as well. But I have to think about this and I…

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• Converting 2D coordinates from multiple viewpoints into 3D coordinates

  - by Kirk Smith

  Here's the situation. I've got a set of 2D coordinates that specify a point on an image. These 2D coordinates relate to an event that happened in a 3D space (video game). I have 5 images with the same event point on it, so I have 5 sets of 2D coordinates for a single 3D coordinate. I've tried everything I can think to translate…

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• TweetMeme Button or Template Plug-In for WLW

  - by Tim Murphy

  In my search for a way to allow readers to tweet post that I put on GWB I have come across the TweetMeme plug-in for Windows Live Writer.  It automatically puts a twitter button at either the top or bottom of your post depending on how you configure it.  It comes with a warning that it does not work with blog servers…

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• List SQL Server Instances using the Registry

  - by BuckWoody

  I read this interesting article on using PowerShell and the registry, and thought I would modify his information a bit to list the SQL Server Instances on a box. The interesting thing about listing instances this was is that you can touch remote machines, find the instances when they are off and so on. Anyway, here’s the scriptlet…

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• Can I save & store a user's submission in a way that proves that the data has not been altered, and that the timestamp is accurate?

  - by jt0dd

  There are many situations where the validity of the timestamp attached to a certain post (submission of information) might be invaluable for the post owner's legal usage. I'm not looking for a service to achieve this, as requested in this great question, but rather a method for the achievement of such a service. For the legal (in…

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• Dynamic Forms: Pattern or AntiPattern?

  - by Segfault

  I'm sure you've seen it. The database has a bunch of tables called Forms, Controls,FormsControls, ControlSets, Actions and the program that queries these tables has a dynamically generated user interface. It will read all the forms, load a home page that has links to them all, or embed them in some tabbed or paged home page, and…

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• Git-based storage and publishing, infrastructure advice

  - by Joel Martinez

  I wanted to get some advice on moving a system to "the cloud" ... specifically, I'm looking to move into some of Windows Azure's managed services, as right now I'm managing a VM. Basically, the system operates on some data stored in a github git repository. I'll describe the current architecture: Current system (all hosted on a…

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• Filtering a Grid of Data in ASP.NET MVC

  This article is the fourth installment in an ongoing series on displaying a grid of data in an ASP.NET MVC application. The previous two articles in this series - Sorting a Grid of Data in ASP.NET MVC and Displaying a Paged Grid of Data in ASP.NET MVC - showed how to sort and page data in a grid. This article explores how to…

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• How to factor out data layer in nopCommerce and replace MS SQL with RavenDB?

  - by Kaveh Shahbazian

  I am new to nopCommerce and ecommerce in general but I am involved in an ecommerce project. Now from my past experiences with RavenDB (which mostly were absolutely pleasant) and based on the needs of the business (fast changes with awkward business workflows) It seemed to be an appealing option to have RavenDB handling all…

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• Choosing a web development framework?

  - by Bob

  So, I've sort of reached a point where I want to start developing a website. Originally, I planned to build said website using PHP and CodeIgniter, I'm familiar with both, but, truth be told, I'm not too fond of either. I find they just get rather messy, CodeIgniter helps somewhat, but no matter what, it seems that most…

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• Sesame Data Browser: filtering, sorting, selecting and linking

  - by Fabrice Marguerie

  I have deferred the post about how Sesame is built in favor of publishing a new update.This new release offers major features such as the ability to quickly filter and sort data, select columns, and create hyperlinks to OData. Filtering, sorting, selecting In order to filter data, you just have to use the filter row,…

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• Architecting Python application consisting of many small scripts

  - by Duke Dougal

  I am building an application which, at the moment, consists of many small Python scripts. Each Python script processes items from one Amazon SQS queue. Emails come into an initial queue and are processed by a script and typically the script will do a small unit of processing (for example, parse email and store some…

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• Performance-Driven Development

  - by BuckWoody

  I was reading a blog yesterday about the evils of SELECT *. The author pointed out that it's almost always a bad idea to use SELECT * for a query, but in the case of SQL Azure (or any cloud database, for that matter) it's especially bad, since you're paying for each transmission that comes down the line. A very good…

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• Is there a measure of code rot?

  - by DarenW

  I'm dealing, again, with a messy C++ application, tons of classes with confusing names, objects have pointers into each other and all over, longwinded Boost and STL data types, etc. (Pause and consider your favorite terror of messy legacy code. We probably have it.) The phrase "code rot" oft comes to mind when I…

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• My experience working with Teradata SQL Assistant

  - by Kevin Shyr

  Originally posted on: http://geekswithblogs.net/LifeLongTechie/archive/2014/05/28/my-experience-working-with-teradata-sql-assistant.aspx To this date, I still haven't figure out how to "toggle" between my query windows. It seems like unless I click on that "new" button on top, whatever SQL I generate from…

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• Monster's AI in an Action-RPG

  - by Andrea Tucci

  I'm developing an action rpg with some University colleagues. We've gotton to the monsters' AI design and we would like to implement a sort of "utility-based AI" so we have a "thinker" that assigns a numeric value on all the monster's decisions and we choose the highest (or the most appropriate, depending…

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• CodePlex Daily Summary for Tuesday, June 18, 2013

  CodePlex Daily Summary for Tuesday, June 18, 2013Popular ReleasesCODE Framework: 4.0.30618.0: See change notes in the documentation section for details on what's new. Note: If you download the class reference help file with, you have to right-click the file, pick "Properties", and then unblock the file,…

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• As a C# developer, would you learn Java to develop for Android or use MonoDroid instead?

  - by Dan Tao

  I'd consider myself pretty well versed in C#. It's my language of choice at the moment, and it's where basically all my professional experience lies. Still, I'm puzzled by the existence of the MonoDroid project. My understanding has always been that C# and Java are very close. Like, if you know one, you…

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