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• How to explain OOP to a matlab programmer?

  - by Oak

  I have a lot of friends who come from electrical / physical / mechanical engineering background, and are curious about what is "OOP" all about. They all know Matlab quite well, so they do have basic programming background; but they have a very hard time grasping a complex type system which can benefit from the concepts OOP introduces. Can anyone propose a way I can try to explain it to them? I'm just not familiar with Matlab myself, so I'm having troubles finding parallels. I think using simple examples like shapes or animals is a bit too abstract for those engineers. So far I've tried using a Matrix interface vs array-based / sparse / whatever implementations, but that didn't work so well, probably because different matrix types are already well-supported in Matlab.

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• What's a good 2D animation program for Linux (an alternative for e.g. Flash CS)?

  - by Martin Zeltin

  I don't mean the flash player here, I'm talking about the flash program that i can make animations with. Like Adoble Flash CS (formerly known as Macromedia flash). Is there a program on linux that i can make animations? I want to make a movie like animator vs animation. I used easy gif animator on windows lol it was a bit harder than flash but i'm on linux and I'd like to know what it has to offer. Worse case scenario, what gif animators are there on linux. :) Thanks!

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• C library build system dependencies

  - by Ninefingers

  Hello all, This debate has cropped up on a mailing list for a project I'm involved in. Unfortunately we're quite a small bunch at the moment, so I want to ask a wider audience. We're writing a C library (for arbitrary precision arithmetic) and are investigating build systems. Currently we have a bash script in desperate need of work. I believe we can't use autotools etc due to licensing (bsd vs gpl). So I suggested we use a modern scripting language like python or perl. The question is: is having something like perl or python around at build time an unrealistic dependency on Unix-like platforms these days?

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• What benefits does a game design degree have for a hobby game programmer?

  - by sm4

  I am interested in studying game design, not because I want a job in the games industry, but because I am interested in the subject itself. I read the following questions, but they mostly deal with the effects on your career in game industry. Should I consider a graduate degree in game development? Game Development Degree vs Computer Science Degree First I thought a game development degree could be beneficial. But from the websites of colleges that offer such degrees, I feel like its more about basic programming with examples from games. This college offers game design degrees, for example. My question is, can I benefit from such a degree when I already have a degree in Computer Science, I already know programming, I'm already developing a game and finally, I have this site to help me when I get stuck?

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• MIX10 Big Announcements Speculation

  - by Ken Cox [MVP]

  What’s your speculation on the big announcements to come from MIX10 ? A date for VS 2010 availability on MSDN? A release candidate for Silverlight 4 on the desktop? An SDK for Silverlight on Windows Mobile 7? A CTP of Internet Explorer 9? Something (anything!) new on Windows Live ID development? More JQuery in ASP.NET? Alas, the vast majority of .NET developers (me included) can’t attend the MIX conference again this year. Fortunately, Channel 9 is putting much of the important content online . They...(read more)

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• MIX10 Big Announcements Speculation

  Whats your speculation on the big announcements to come from MIX10 ? A date for VS 2010 availability on MSDN? A release candidate for Silverlight 4 on the desktop? An SDK for Silverlight on Windows Mobile 7? A CTP of Internet Explorer 9? Something (anything...(read more)...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Virtual Developer Day: Oracle Fusion Development (July 10, Americas TZ)

  - by oracletechnet

  Help! We love bringing Virtual Developer Days to you, and we can't stop! Yes,  again we're proud and happy to offer you the newest flavor of Virtual Developer Day, this one to debut on July 10 in the Americas timezones: Oracle Fusion Development (register). In this workshop, we'll give you a deep dive into the ever-expanding world of Oracle ADF, including: Oracle ADF vs. Oracle APEX use cases Oracle ADF Mobile Development Oracle ADF + Eclipse Oracle WebCenter and Oracle ADF Development and more.... Looks like paradise for Oracle ADF junkies, or developers who aspire to become one. As is the case with all our Virtual Developer Days, Oracle PMs will be on call via live chat to answer your questions and provide support. Get on board!

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• Imaginet Resources acquires Notion Solutions

  - by Aaron Kowall

  Huge news for my company and me especially. http://www.imaginets.com/news--events/imaginet_acquisition_notion.html With the acquisition we become a very significant player in the Microsoft ALM space.  This increases our scale significantly and also our knowledgebase.  We now have a 2 Regional Directors and a pile of MS MVP’s. The timing couldn’t be more perfect since the launch of Visual Studio 2010 and Team Foundation Server 2010 is TODAY!! Oh, and we aren’t done with announcements today… More later. Technorati Tags: VS 2010,TFS 2010,Notion,Imaginet

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• Exporting XNA class library as a DLL file

  - by Will Bagley

  I have downloaded an open source project that I intend to use with my current game. The download came with all the class files from the original project as well as a pre-compiled DLL file representing the project. I was able to easily link this DLL with my current project and get it working just fine, no problems there. The problem I now have is that I want to make a couple of changes to the original libraries (extend its functionality a bit to better suit my needs) and re-export the class library as a DLL again, but I have no clue how to do this. Is there some simple way in VS where I can just take the class library and export/compile it as a DLL file again or is there more to it than that? This seems like something that should be pretty simple but my efforts to find an answer have so far come up with nothing. Thanks in advance.

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• IIS Not Accepting Login Credentials

  - by Dale Jay

  I have an ASP.NET web form using Microsoft's boilerplate Active Directory login page, set up exactly as suggested. (See http://msdn.microsoft.com/en-us/library/ms180890%28v=vs.80%29.aspx) Windows Authentication is activated on the "Default Website" and "MyWebsite" levels, and Domain\This.User is given "Allow" access to the site. After entering the valid credentials for This.User on the web form, a popup window appears asking me to enter my credentials yet again. Despite entering valid credentials for This.User (after attempting Domain\This.User and This.User formats), it rejects the credentials and returns an unauthorized user page. Active Directory user This.User is valid, the IP address of the AD server has been verified and SPN's have been set up for the server. Any thoughts as to what may be causing this? I can post code if needed.

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• Automated architecture validation

  - by P.Brian.Mackey

  I am aware of the fact that TFS 2010 ultimate edition can create and validate architecture diagrams. For example, I can create a new modeling project add Layer Diagram Add Layer called View Add BL Layer Add DL layer. Then I can validate this architecture as part of the build process when someone tries to check code into TFS. In other words, if the View references the DL then the compilation process will fail and the checkin will not be allowed. For those without an MSDN ultimate license, can FxCop or some 3rd party utility be used to validate architecture in an automated fashion? I prefer a TFS install-able plugin, but a local VS plugin will do.

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• synchronization web service methodologies or papers

  - by Grady Player

  I am building a web service (PHP+JSON) to sync with my iphone app. The main goals are: Backup Provide a web view for printing / sorting, manipulating. allow a group sync up and down. I am aware of the logic problems with all of these items, Ie. if one person deletes something, do you persist this change to other users, collisions, etc. I am looking for just any book or scholarly work, or even words of wisdom to address common issues. when to detect changes of data with hashes, vs modified dates, or combination. how do address consolidation of sequential ID's originating on different client nodes (can be sidestepped in my context, but it would be interesting.) dealing with collisions (is there a universally safe way to do so?). general best practices. how to structure the actual data transaction (ask for whole list then detect changes...)

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• Translating an Object to a certain Vector 3 in OpenGL and Java LWJGL

  - by aliasmk

  So after almost two hours, I got the hang of using glTranslated() (with Java and LWJGL). If I am correct, applying glTranslated on an object moves that object with the x,y,z relative to the previously moved object. I believe the correct term for this is local vs global, global being the one I want. I was wondering if there was a way to translate an object to a specific XYZ position, or relative to the origin. Thanks! (Code or other details can be supplied if it helps, just let me know. Also sorry if this is a noob comment, Im very new to OpenGL.)

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• How vibrations might effect Kinect depth measurements

  - by dreza

  I'm currently doing some research into development with the Microsoft Kinect product. My project manager has come up with a potential design for mounting the camera to do the capturing. However the solution means that the camera might be subject to vibrations as the platform it is on is directly connected to where the subjects will be moving. It was my thought that vibrations would effect the quality of the results, however I could not come up with a viable explanation as to why, other than it's the same as if you held a camera in your hand and your hand was shaking vs using a tripod. Do vibrations effect the depth measurements on a Kinect and if so how can I explain this in simple terms to my PM to help come up with a better design to attach the sensor to?

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• XNA: Auto-populate content within the content project based on current folder/file structure and content management for large games

  - by Joe

  1) Is it possible to implement a system where I can simply drop a new image into my content project's folder and VS will automatically see that and bring it into the project for compiling? 2) Similarly, if I wanted a specific texture I could state something like var texture = Game.Assets.Image["backgrounds/sky_02"]; (where Game is the standard XNA Game class and Assets is some kind of content manager statically defined within Game). I know this is fairly simple to implement manually and have done such things in the past (static Dictionary defined within Game) except this only works for relatively small games where you can have all assets loaded at the start without much issue. How would you go about making this work for games where content is loaded and unloaded based on level / area? I'm not asking for the solution, just how you would go about this and what things you would have to be aware of. Thanks.

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• [PHP] Version Changes: How considerable are the compatibility issues in project?

  - by AdityaGameProgrammer

  For example if we consider ActionScript2.0(based on Objects but programming does not implement much OOP ) vs 3.0(highly OOP) its like a whole new scripting language in the sense of approach, programming style,features you get the idea. In PHP we can see current versions going from 3-5. brief version changes Question :Developers who work on PHP is it easy to migrate from version to version? Question :Are there any extensive compatibility issues, forward or backward? Question :Does your project stick to a particular version till the end ? Question :Does the programming style ,approach change from version to version? Question :If you had to get started on PHP to contribute to a project built earlier versions, would learning the latest version be counterproductive towards this aim? Some related topics i had come across on SE How should I be keeping track of php script version/changes? What is happening to PHP 6? It would be Really helpful in understanding if you could answer this topic directly to the questions put forth.

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• API Design Techniques

  - by Dehumanizer

  Is it right or more beautiful to name the functions with an prefix, like in Qt? Or using "many" namespaces, but 'normal' names for functions? For example, slOpenFile(); //"sl" means "some lib" vs some_lib::file_functions::openFile(); UPD: I've read somewhere that the first variant(using some prefix) is better, because the API users can perform 'fast' search among the documentation and in the Internet. E.g. by typing the magic prefix search engine starts to advice the exact functions. Is it enough to use the first variant?

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• I removed nvidia driver and lshw -c video still shows nvidia

  - by sinekonata

  Today I tried to activate the newer experimental drivers and both 304 and 310 failed to even install. So I tried the regular nvidia driver 295.40 for the 20th time today (I had lag issues and was testing Nouveau vs Nvidia with dual monitor and Unity2D-3D) Within my tty1 I tried to remove nvidia: sudo apt-get remove nvidia-settings nvidia-current and purge too reboot, nothing. So when lshw -c video displayed nvidia as my driver I tried sudo rm /etc/X11/xorg.conf since I read ubuntu would "reset" the GUI conf but reboot, nothing. So next I tried sudo jockey-text --disable=xorg:nvidia_current And nothing has worked...

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• Version Changes: How considerable are the compatibility issues in project?

  - by Aditya P

  For example if we consider ActionScript2.0(based on Objects but programming does not implement much OOP ) vs 3.0(highly OOP) its like a whole new scripting language in the sense of approach, programming style,features you get the idea. In PHP we can see current versions going from 3-5. brief version changes Question :Developers who work on PHP is it easy to migrate from version to version? Question :Are there any extensive compatibility issues, forward or backward? Question :Does your project stick to a particular version till the end ? Question :Does the programming style ,approach change from version to version? Question :If you had to get started on PHP to contribute to a project built earlier versions, would learning the latest version be counterproductive towards this aim? Some related topics i had come across on SE How should I be keeping track of php script version/changes? What is happening to PHP 6? It would be Really helpful in understanding if you could answer this topic directly to the questions put forth.

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• At what visitor share do you stop supporting a given browser?

  - by adam

  I'm lead dev for a large website which has a higher than average percentage of IE6 users - about 4.4% of our audience. Our new version is going to make use of progressive enhancement - including transitions and effects as well as rounded corners, gradients, web fonts and other CSS techniques. Obviously there are cross-browser ways to achieve most of these things which require various amounts of work to implement. What I'm currently looking into - and what I'd like your experiences of - is how to decide at what point we draw the line between providing an enhanced experience vs just supporting the functionality. FYI, I believe that this question meets the six guidelines for great subjective questions as defined in the FAQ. I'm after answers detailing why and how, not too short, with constructive comments, experiences, facts and references. Thanks! Adam

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• Free Typescript editor with definition based code completion feature

  - by NagyI

  I know that a plugin for Visual Studio exists. However i can't afford VS so i'm looking for a free alternative which can be used to code TypeScript and aware of the .d.ts definition files and can do code completion based on them. I know that Sublime Text and VIM can do syntax highlighting with the correct language definition file. However the biggest advantage of Typescript for me is that ability to give code assistance while coding. Are you aware of any editor which can do this? I'm interested even if it's in an experimental state.

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• Not getting paid for hours you've worked?

  - by Mercfh

  So I was reading from a previous thread about App vs Game Development Here Which brought me to this site: Clicky Alot of it talked about devs working something like 85 hours a week.....and not getting paid overtime, or anything. Just getting paid for the 40 hours.....Is this normal for most software companies? I mean where I work im only an entry level guy....but I get overtime, and Anything over 40 hours is considered this. But it got me thinking "Holy crap" I could never do that. My FREE time is important to me. But is this commonplace in most software companies? or...more a rarity to certain types (game development, etc) Cause it got me scared! Like I understand having to put some extra hours in for a project......but like 80! thats ridiculous.

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• Why should I use List<T> over IEnumerable<T>?

  - by Rowan Freeman

  In my ASP.net MVC4 web application I use IEnumerables, trying to follow the mantra to program to the interface, not the implementation. Return IEnumerable(Of Student) vs Return New List(Of Student) People are telling me to use List and not IEnumerable, because lists force the query to be executed and IEumerable does not. Is this really best practice? Is there any alternative? I feel strange using concrete objects where an interface could be used. Is my strange feeling justified?

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• Task Management - How important it is for a entry level developer?

  - by Naveen Kumar

  I hold masters in CS & now I'm mobile apps developer (Entry Level) , I always start to plan things when starting or doing any project both at work & projects i do at Home (for passion) - as I can deliver the project on time but sometimes i m running out of time like 10 tasks a day vs my time forecast will take 2 on that day? As I'm beginner level, I want your suggestions on How important is Task Management for a person like me & for achieving my goals? My target for the next 3 year will be a Project Manager or Similiar Role - i belive which these time managing skills will be a needed quality.

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• Most efficient AABB - Ray intersection algorithm for input/output distance calculation

  - by Tobbey

  Thanks to the following thread : most efficient AABB vs Ray collision algorithms I have seen very fast algorithm for ray/AABB intersection point computation. Unfortunately, most of the recent algorithm are accelerated by omitting the "output" intersection point of the box. In my application, I would interested in getting both the the distance from source ray to input: t0 and source ray to output of bounding box: t1. I have seen for instance Eisemann designed a very fast version regarding plucker, smits, ... , but it does not compare the case when both input/output distance should be computed see: http://www.cg.cs.tu-bs.de/publications/Eisemann07FRA/ Does someone know where I can find more information on algorithm performances for the specific input/output problem ? Thank you in advance

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