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• The Ubuntu App Showdown -Specific software

  - by Stefanie

  I would like to participate the contest but I'm programming very specific scientific tools for the work in a molecular biological lab. I know that I won't win with such an app but it's a nice possibility to get into Qickly and Ubuntu Apps since I'm only programming for Windows at the moment. My question is, whether I have a possibility to explain what my software is doing and for what it is good in the lab. Also I have to provide some test data, that the jury can try it out. Is this possible and how I can submit those additional information?

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• Error Setting Java Environment Variables

  - by Cherie Riesberg

  Problem:  Not exactly SharePoint, but the issue is when setting the %JAVA_HOME% environment variable, Java installs to the Program Files directory by default.  The space in the path seems to stop the variable from being read.  You get an error. Solution:  Change Program Files to Progra~1, so the path now looks like this: C:\Progra~1\Java\jdk1.6.0_23\bin\; You can type %JAVA_HOME%\bin\javac to test.  Output should look like this: Usage: javac <options> <source files> where possible options include: ...

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• Would I benefit changing from PHP to Node.js (in context)

  - by danneth

  The situation: We are about to roll out what is essentially a logging service. As we are rather PHP heavy, the current implementation use it. We will have about 200 computers (most on the same network) that will each send, via HTTP POST, around 5000 requests/day. With each request containing about 300 bytes of data. The receiving end is hosted at Amazon and is a very simple PHP form with some simple validation that puts everything in a database. Now, I've recently been introduced to Node.js and I'm curious as to if it would be a good fit for the backend here. Granted I could easily build something to test this. But since I haven't fully grasped the async-methology I would really like someone with experience to explain it to me.

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• Auth succeeded No requires line available

  - by user286223

  Upgrading to Ubuntu 14.04 (and Apache2 2.4) server I can't use MySQL as htaccess; Before upgrading I was using MySQL as htaccess in the virtual host - worked nicely: <Directory /var/www/html/tilmelding/login> AuthBasicAuthoritative Off AuthUserFile /dev/null # begin auth_mysql configuration AuthMySQL On AuthMySQL_Host localhost AuthMySQL_User ********** AuthMySQL_Password ********* AuthMySQL_DB ********** AuthMySQL_Password_Table user_info AuthMySQL_Username_Field user_name AuthMySQL_Password_Field user_passwd AuthMySQL_Empty_Passwords Off AuthMySQL_Encryption_Types PHP_MD5 AuthMySQL_Authoritative AuthType Basic AuthName "auth_mysql test" Require valid-user After upgrade it didn’t work. In the logfile I got: [:debug] [pid 31333] mod_auth_mysql.c(1578): Constructing password collection query with passfield=[user_passwd], table=[user_info], userfield=[helgoland], where_clause=[] [:debug] [pid 31333] mod_auth_mysql.c(1410): sec->dbh in /var/www/html/tilmelding/login/ is [:debug] [pid 31333] mod_auth_mysql.c(1417): Ordinary query [:debug] [pid 31333] mod_auth_mysql.c(1434): Running query: [SELECT user_passwd FROM user_info WHERE user_name='helgoland'] [:debug] [pid 31333] mod_auth_mysql.c(1522): Checking with PHP_MD5 [:debug] [pid 31333] mod_auth_mysql.c(1524): Auth succeeded [:error] [pid 31333] No requires line available I am able to do the query from CLI and get an MD5 back. What have I missed ?

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• Collisions and Lists

  - by user50635

  I've run into an issue that breaks my collisions. Here's my method: Gather Input Project Rectangle Check for intersection and ispassable Update The update method is built on object_position * seconds_passed * velocity * speed. Input changes velocity and is normalized if 1. This method works well with just one object comparison, however I pass a list or a for loop to the collision detector and velocity gets changed back to a non zero when the list hits an object that passes the test and the object can pass through. Any solutions would be much appreciated. Side note is there a more proper way to simulate movement?

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• Where can I find a collection of photorealistic scenes? [on hold]

  - by emchristiansen

  Where can I find a collection of 10-100 3D scenes with photorealistic levels of detail? For example, the scene rendered here contains photorealistic detail. Note I want the underlying object models, textures, etc, not final renderings. I'll be using these scenes to test a computer vision idea. BTW, this is a reposting of this question. I wasn't able to find a Stack Exchange site that is perfectly suited to the question, but as this is a modeling and rendering question, I'm hoping it is a good enough match for the venue.

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• Popper Email Notifier not working

  - by Joel

  Using Maverick 64bit I downloaded Popper Email Notifier today. Installed it from the v023 deb. https://launchpad.net/popper I configured it, and the TEST tab shows I configured everything properly. I can't get Popper to appear in the notification menu. I have restarted gnome-pannel, restarted my computer, reinstalled the app. No luck. I checked the /usr/share/indicators/messages/applications/ folder, and there's only the defaults there. Anyone know how to fix this? Even if someone knows what file I can drop into that folder to make it work that'd be great. Edit: I wonder if it's because I removed the evolution-indicator package? Thanks!

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• Disposing of ContentManager increases memory usage

  - by Havsmonstret

  I'm trying to wrap my head around how memory management works in XNA 4.0 I've created a screen management test and when I close a screen, the ContentManager created by that screen is unloaded. I have used ANTS Memory Manager to look at how the memory usage is altered when I do this, and it gives me some results which makes me scratch my head. The game starts with loading two textures (435kB and 48,3kB) which puts the usage at about 61MB. Then, when I delete the screen and runs Unload on the ContentManager, the memory usage drops to 56,5MB but instantly after goes up to 64,8MB. Am I doing something wrong or is this usual for XNA games? Do I have to dispose of everything the ContentManager loads seperatly or do I need to do something more to the ContentManager? Thanks in advance!

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• Git dont sync files untill committed even if checkout different branch

  - by DertWaiter

  Ok i have git 1.7.11.1 on windows and i have local test reposotory with 2 branches one is master with index.php help.php then i create another branch called slave :) I run from git bash rm help.php and it dissapears from the folder, but i dont stage anything. I switch to checkout master branch and it supposed to restore file help.php because its not modified in master branch isnt it? And it does not do it. When i back to slave branch and commit and then switch to checkout master then help.php appears. is that the way it supposed to be why?

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• Where would a senior PHP developer locate the method getActiveEntries()?

  - by darga33

  I have a class named GuestbookEntry that maps to the properties that are in the database table named "guestbook". Very simple! Originally, I had a static method named getActiveEntries() that retrieved an array of all GuestbookEntry objects. Each row in the guestbook table was an object that was added to that array. Then while learning how to properly design PHP classes, I learned some things: Static methods are not desirable. Separation of Concerns Single Responsibility Principle If the GuestbookEntry class should only be responsible for managing single guestbook entries then where should this getActiveEntries() method most properly go? Update: I am looking for an answer that complies with the SOLID acronym principles and allows for test-ability. That's why I want to stay away from static calls/standard functions. DAO, repository, ...? Please explain as though your explanation will be part of "Where to Locate FOR DUMMIES"... :-)

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• PureBasic 5.00 est sorti : support Cocoa et version 64 bits OS X, nouvel éditeur de fenêtres, et nombreuses fonctions 3D au menu

  La version 5.00 de PureBasic est sortie. On notera le support Cocoa et la version 64 bits pour OS X. Et un nouvel éditeur de fenêtres pour Windows, Linux et OS X. On trouve également la mise à jour des bibliothèques tierces, pas mal de bogues corrigés et bien sûr la bibliothèque 3D grandement améliorée. Voir la liste ci-dessous pour plus de détails. Cette version a nécessité une longue période de test d'après l'équipe de Fantaisie Software, qui travaille déjà sur la suivante. Les versions démos ne sont pas encore en ligne, mais cela ne saurait tarder. Pour ceux qui ont une licence, vous pouvez télécharger PureBasic 5.00 sur votre compte :

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• Default Location of Web Site Content

  - by RichyL

  I am looking to install mediawiki on a production server (after doing a test on a development one). I could not really understand why the default location for the mediawiki files is /var/lib/mediawiki. I would have thought /var/www would've made more sense. I did some research and in http://people.canonical.com/~cjwatson/ubuntu-policy/policy.html/ch-customized-programs.html#s-web-appl it says the following Web Document Root Web Applications should try to avoid storing files in the Web Document Root. Instead they should use the /usr/share/doc/package directory for documents and register the Web Application via the doc-base package. If access to the web document root is unavoidable then use /var/www Can anyone explain why this is please?

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• Silverlight 4 minor update&ndash;June 2010

  Today we released a service update for Silverlight 4. This is a minor release that addresses some items found immediately after release that have now completed our test passes with those who reported them. Most of the items found wont affect all users, but media developers will want to get this update for their applications and encourage their users to upgrade. This update (4.0.50524.0) addresses a few media-related items found by some of our media customers. A few items were serviced for DRM users...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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• Avoid Code Repetition in Condition Statements

  - by Ethosik

  I have been programming for over 15 years now. I consider myself a very good programmer, but I understand (like all of us) there are things that I need to work on. One of these things is code repetition when dealing with conditions. I will give a generic sample: if(condition1) { //perform some logic if(condition2) { //perform some logic if(condition3) { //Perform logic } else { //MethodA(param) } } else { //MethodA(param) } } else { //MethodA() } Now, I cannot make it easy by doing the following: if(condition1 && condition2) { } else { } I cannot do this since I need to perform some logic if condition1 is true and before I test condition2. Is there a way to structure if...else blocks to where if you need to call a method in each else blocks, you are not repeating yourself?

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• (Phaser) Preload Future States in Create?

  - by Brian

  I'm a first time user of Phaser, been trying to make a simple point and click type game. I'm trying to keep things very modular, so I'm defining a list of levels (states) in a JSON, and then every level has its own JSON containing the objects within that level. However, I'm encountering an issue in that, when changing states, I get a black flash while the assets for the next state load (this happens whether I iterate through the JSON list or define everything manually). From what I've read, all sprites should be loaded in the preload stage, however, by doing this I'm causing that tiny but noticeable black pause. I know one way would be to simply load every asset at the start of the game, but that seems incredibly inefficient (wouldn't that fill up the memory immensely?). I would rather load a state's assets from the "parent" state. However, in my quick test (which maybe I did wrong) it seems that game.load doesn't work properly if done within the create stage? What is the best approach to doing this?

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• Is there any simple C++ code to grab video from UVC webcam and display it simultaneously?

  - by mShero

  I'm very very new to Linux and programming! I'm using ubuntu 11.10 - 64 bits with gcc 4.6.1 I've been searching online for an example C++ code that simply grabs video from a compliant UVC webcam and displays it simultaneously.. I need to compile it on gcc. In OpenCV, it's a very simple code less than 20 lines as I remember! I found this: http://v4l2spec.bytesex.org/spec/capture-example.html But it's very huge code relative to OpenCV code ?! and even when I tried to compile it using gcc.. I got many errors! I copied the code into a cpp file: cap.cpp then wrote in the terminal: gcc cap.cpp -o cap and the errors showed up... same errors with g++ I hope if someone can help me and tell me where can I find another simpler code? and how can I test it ? Thank you :)

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• Fedora 19 simplifie l'administration système et la programmation, Schrödinger's Cat sort avec PHP 5.5, Java 8, Node.js, GCC 4.8 et CLang 3.3

  La nouvelle version de la distribution GNU/Linux Fedora vient de sortir ! Cette 19e version est nommée en l'honneur du chat de Schrödinger. Outre la mise à jour des applications habituelles, cette version s'est centrée sur les outils de l'administration système et de programmation. De quoi ravir et attirer les amateurs de ces technologies.Pour commencer, GNOME 3.8, KDE SC 4.10 et MATE 1.6 sont dans leurs dernières livrées. La stabilité en ressort augmentée avec la correction de nombreux détails pour rendre leurs usages plus confortables.La technologie de l'impression 3D commence à mûrir et Fedora prend les devants en se dotant d'une chaine complète de logiciels libres pour cette activité. De la conception du modèle à l'impression finale, l'ensemble des outils a été test...

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• Good source for interview-style coding problems for entry/intermediate developers?

  - by soster

  I have taught myself to code over the past few years and do not have a computer science degree. As a result, I lack experience from many things, such as the basic homework/test questions many CS graduates take for granted. I recently had a tech screen interview where I fumbled and struggled to finish a (relatively) common question, I believe due to this inexperience. My question to all of you is this: do you know a good source for a bunch of these problems that includes answers, for an entry/intermediate developer who is trying to gain coding problem solving experience? The ones I've been able to find on the internet are for coding teams, so they're a bit too complicated for me. Thanks so much in advance.

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• Support du HTML5 : Opera, Firefox, Maxthon et BlackBerry les plus complets sur mobiles, tablettes et PC d'après un comparatif hollandais

  Support du HTML5 : Opera, Firefox, BlackBerry et Maxthon les plus complets Sur mobiles, tablettes et PC d'après un comparatif hollandais Bien sûr, un seul test ne vaut pas parole d'évangile. Mais celui-ci, vu le nombre de critères qu'il intègre, a tout de même son intérêt. A l'origine, le site HTML5test mesure les performances des navigateurs dans leurs supports du standard Web. Le résultat est présenté sous la forme d'un score, dont le maximum est de 500 points, détaillé ensuite balise par balise et fonctionnalité par fonctionnalité (canvas, vidéo, forms, glisser-déposer, cache, etc.). Sights, la société Néerlandaise derrière ce site, a décidé de publ...

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• External link tracking when opening the link in a new window in Google Analytics?

  - by evanmcd

  OK, so this seems like a really simply problem, but I have yet to find a solution that accomplishes the following: Opens the link in a new window Tracks the event in GA (obviously) Doesn't trigger pop-up blockers (uses target="_blank" instead of window.open) Most of the code I've seen, including Google's, doesn't take into account the case of opening in a new window - they just window location.href. Even GAAddons (http://gaaddons.com/), which charges for commercial use, doesn't seem to work for me. Perhaps, I'm missing something simple - I'd be relieved if so and would thank profusely whoever points it out to me! If no one is able to provide an example, I'll post some of the test cases I've created to illustrate the problem. Thanks.

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• Enablement 2.0 Get Specialized!

  - by mseika

  Oracle PartnerNetwork Specialized program is releasing new certifications on our latest products, and partners are invited to be the first candidates. A Certification exam goes through a rigorous review process called a beta period. Here are a few advantages of taking a Beta Exam: Certification exams during the beta period count towards your Company Specialization. Most new Certified Specialist Exams have no training requirement. Beta Exams Vouchers are available in limited quantity, so request a voucher today by contacting the Partner Enablement Team and act fast to reserve your test from the list below. For more information click here. 

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• Wireless connectivity Wifi 7260 on Ubuntu 10.04

  - by user292332

  I am trying to install Wireless networking on Dell Latitude E5440 Wifi 7260- Ubuntu 10.04.(Yes I know it is old- see the complication below) I did get the wired connection working but our classrooms are wireless. I have tried to upgrade to version 12 last year but to my horror during the first week of class the nfs mounts did not work for multiple users. I never thought to test for more then one person at at time!! I have not been able to find a fix for the upgrade so I must remain at 10.04. NFS mounts are a must for student home directory access on the servers. All desktops are 10.04 as are the servers. Does anyone have a solution to the wireless problem in version 10.04/ or the nfs mounts solution in version 12. Thank you so much. Val

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• Upgraded Ubuntu from 12.04 to 12.10 Ati radeon HD 3450 Catastrophe!

  - by minime

  When I had upgraded everything was ready on the screen om my computer and with my 12.04 ubuntu. When I restarted my system, the graphics card was not detected. I was forced to start the computer in low graphics mode, and eventually I had a pink deskop with only my maps, and no other programs at all. What do I do now? I need to recover the pictures on my system so that I can upload them online. I'd done a graphics card test on the terminal initially, and it showed that the card was compatible with unity 3D. I have an ATI radeon HD 3450 and I was running a 32 bit build of Ubuntu 12.04 initially Right now I have a broken install of Linux, with no working graphics card or desktop to start from, so I'm unsure of how to fix this.

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• Domain resolution - local first then external

  - by stefgosselin

  I would like to know how I can configure my dns settings so that domain is resolved locally first, then if not resolved it goes to external DNS. I had this working before, I am using Ubuntu through a VM and need the local domain to resolve first but since I have upgraded I had to reconfigure network and now it works only external, local host file does not seem to even be used. Is there an easy way to check this out? I did slap it up in google but no specific answer seemed to match my case and I too tight on delivery deadline to test-and-try different approaches. You guys rock, thanks.

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• Web Form Testing [closed]

  - by Frank G.

  I created a application for a client that is along the lines of a ticket tracking system. I wanted to know if anyone know of software that could beta test the web forms. Well I am looking for something that could automatically populate/fill whatever forms are on the web page with generic data. The purpose of this is to just randomly populate data and see if I get any errors on the page when submitted plus to also see how validation for the form functions. Does anyone know of anything that could do this?

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