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• Upgrade php5-gd on 12.04?

  - by metrobalderas

  I'm working with the GD library for image manipulation, to which I need to create some transparent PNGs. Instead, I'm getting a black background. I've looked everywhere on how to generate a blank, transparent PNG canvas with it and all the answers just don't work for me. On further inspection, I'm working with an old GD version: The functions needed to create a transparent PNG requires 2.0.1 altough 2.0.28 or later is recommended. I installed php5-gd with apt-get, and aptitude haven't found new packages. Do I have to add a new PPA? Where can I find it? What about forcing a version? Thanks in advance!

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• Depending on another open source library: copy/paste code or include

  - by user5794

  I'm working on a large class and started implementing new features that need graphics. I started writing the graphics functions myself, but I know that open source libraries exist that can provide me with this functionality without me having to write it myself. The problem is that I prefer the class to be self-sufficient and not dependent on any other library. If I don't write it myself, I would have to ask the user to make sure a graphics library is already installed (less user-friendly). If I write it myself, I do a lot more work than I have to. I could also copy/paste some of the relevant code into my own class, but not sure about the disadvantages of doing this (it's an open source library that matches my license, so I'm not concerned with legality, just programming-wise if there are disadvantages). So what should I do: copy paste code from the external library write the code myself so it's truly self-sufficient ask the user to download and install another library

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• Class Versus Struct

  - by Prometheus87

  In C++ and other influenced languages there is a construct called Structure (struct) and we all know the class. Both are capable of holding functions and variables. some differences are 1. Class is given memory in heap and struct is given memory in stack 2. in class variable are private by default and in struct thy are public My question is that struct was somehow abandoned for Class. Why? other that abstraction, a struct can do all the same stuff a class does. Then why abandon it?

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• Video: Analyzing Big Data using Oracle R Enterprise

  - by Sherry LaMonica

  Learn how Oracle R Enterprise is used to generate new insight and new value to business, answering not only what happened, but why it happened. View this YouTube Oracle Channel video overview describing how analyzing big data using Oracle R Enterprise is different from other analytics tools at Oracle. Oracle R Enterprise (ORE),  a component of the Oracle Advanced Analytics Option, couples the wealth of analytics packages in R with the performance, scalability, and security of Oracle Database. ORE executes base R functions transparently on database data without having to pull data from Oracle Database. As an embedded component of the database, Oracle R Enterprise can run your R script and open source packages via embedded R where the database manages the data served to the R engine and user-controlled data parallelism. The result is faster and more secure access to data. ORE also works with the full suite of in-database analytics, providing integrated results to the analyst.

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• Column-Level Encryption in SQL Server

  Beginning with SQL Server 2005, column-level encryption and decryption capabilities were made available within the database, providing a solution for situations where one-off types of data need to be secured beyond your existing authorization, authentication or firewall settings. This article provides an overview and example of securing a column using native SQL Server cryptography functions. Join SQL Backup’s 35,000+ customers to compress and strengthen your backups "SQL Backup will be a REAL boost to any DBA lucky enough to use it." Jonathan Allen. Download a free trial now.

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• Newbie in ASP.Net

  - by dnvThai

  I am learning ASP.Net and I am confusing between ASP.Net WebPages, ASP.Net WebForms and ASP.Net MVC. I have read a lot of articles and known the simple difference of their functions, but I don't know the differences of their code. E.g: When I look at int* p = new int(); ... I know that it's C++ style. and Dim A as String it have to be Visual Basic. [?1] I'm not able to detect like that in ASP.Net. How do they different in codes? I use Visual Studio 2010 Express Edition.I like to use C# (I also was learned VisualBasic in shool, but I don't like him). When I create a new project, there're too many types of project, then, I don't know which I should choose (I just want to make a simple site). [?2] What are they used to? Thanks

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• Wall avoidance steering

  - by Vodemki

  I making a small steering simulator using the reynolds boid algorythm. Now I want to add a wall avoidance feature. My walls are in 3D and defined using two points like that: ---------. P2 | | P1 .--------- My agents have a velocity, a position, etc... Could you tell me how to make avoidance with my agents ? Vector2D ReynoldsSteeringModel::repulsionFromWalls() { Vector2D force; vector<Wall *> wallsList = walls(); Point2D pos = self()->position(); Vector2D velocity = self()->velocity(); for (unsigned i=0; i<wallsList.size(); i++) { //TODO } return force; } Then I use all the forces returned by my boid functions and I apply it to my agent. I just need to know how to do that with my walls ? Thanks for your help.

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• Real Widget Adds WP7-like Tiles to Android

  - by Jason Fitzpatrick

  Android: If you want the look of Windows Phone 7 tiles on your Android phone without completely replacing your launcher and interface, Real Widget offers the shortcut tiles without the total overhaul. You can customize the widgets to launch apps, system functions, and more to enjoy the WP7 tiled look without sacrificing the functionality of your current Android launcher. Hit up the link below to check out more screenshots and free copy to take for a spin. Real Widget is Android 4.0+ only. Real Widget [via Addictive Tips] HTG Explains: How Antivirus Software Works HTG Explains: Why Deleted Files Can Be Recovered and How You Can Prevent It HTG Explains: What Are the Sys Rq, Scroll Lock, and Pause/Break Keys on My Keyboard?

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• What to use to make voice chat (and some more) on a web?

  - by Tunococ

  I am trying to make available on my website a voice chat for a small group of people that allows some other means to interact such as text messaging, photo sharing, file sharing, simple drawing and silly games. In other words, something similar to older MSN Messenger, but on the web. Any ideas on what to use? To clarify, I am looking for suggestions on languages and libraries to use. I want to be able to fully customize it as much as possible because I might want to add other (somewhat interesting) functions later. Low-level programming is fine if required, but platform dependency isn't that much preferred.

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• How are larger games organized?

  - by Matthew G.

  I'm using Java, but the language I'm using here is probably irrelevant. I'd like to create an economy based on an ancient civilization. I'm not sure how to design it. If I were working on a smaller game, like a copy of "Space Invaders", I'd have no problem structuring it like this. Game -Main Control Class --Graphics Class --Player Class --Enemy class I'd pass the graphics class to both the player and enemy class so they could call graphics functions. I don't understand how I'd do this for larger projects. Do I create a country class that contains a bunch of towns? Do the towns contain a lot building class, most contain classes of people? Do I make a path finding class that the player can access to get around? How exactly do I structure this and pass all these references around? Thanks.

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• How difficult it is to develope Apps for Android and iOS? [on hold]

  - by netsetter

  I'm an experienced web developer in PHP, HTML, Javascript, MySQL, CSS and I'm running communities where people can register to be able to login and do some stuff. Now more and more people are requestion an App, I told them that I have no time and experience to develope Apps with many functions for such complex communities I am running, but then the users told me what would be enough for them and this sounds already simpler to me: An app to install on Android / iOS just to be able to login (+ autologin), so they appear always online in the community when they have internet connection. Then only 1 function like a counter of new activities regarding their user account (new messages, new replies, etc..), and if they click on the app then a browser window will open to read the info at the main website. So, what you think, it will be a big thing to develope such an app for the members? Is there a big diffrence between developing for Android and iOS? How to test the App if you don't have an Android or iOS phone in example?

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• Looking for menu-driven coding platforms

  - by user2634047

  Can anyone point me to an application development environment that uses menu-driven coding? This would mean where commands, variable names, etc. are not keyed in, but rather are selected from a menu of context-specific options. For example, the user selects an If...then command from a menu of commands, and is then presented with a menu of variables to choose from for the the 'if' conditions(s) (or creates new variable(s) on the fly via the menu), and is then presented with a menu of applicable functions that are applicable to the selected variable (e.g., val()), and so on until the If...then statement has been fully coded. The idea is that the user never types any portion of the code, but selects all code elements from a menu, or defines them on the fly via the menu. Thanks.

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• Loading assets in Monogame

  - by Matebu

  I'm creating a MonoGame application on Visual Studio 2012, yet when trying to load a texture I get the following problem: Could not load Menu/btnPlay asset! I have set content directory: Content.RootDirectory = "Assets"; Also the file btnPlay.png has properties set: Build Action: Content and Copy to Output directory: Copy if newer. My constructor and LoadContent functions are totally empty, but have a look yourself: public WizardGame() { Window.Title = "Just another Wizard game"; _graphics = new GraphicsDeviceManager(this); Content.RootDirectory = "Assets"; } protected override void LoadContent() { // Create a new SpriteBatch, which can be used to draw textures. _spriteBatch = new SpriteBatch(GraphicsDevice); Texture2D texture = Content.Load<Texture2D>("Menu/btnPlay"); _graphics.IsFullScreen = true; _graphics.ApplyChanges(); } How do I properly load a texture?

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• Oracle Joins OpenDaylight Project, Plans to Integrate OpenDaylight SDN Capabilities Into Oracle Solaris

  - by CarylTakvorian-Oracle

  Good news for our Telco ISV partners who want to leverage virtualization technologies such as SDN and NFV: We just announced that Solaris 11.2 will integrate OpenDaylight SDN, and that Oracle will join the OpenDaylight project as a Silver member. The integration will allow customers to improve service quality and take advantage of apps-to-disk SLAs through compatibility with a wide range of SDN devices, applications and services. It will also allow them to use a common and open SDN platform with OpenStack to manage Oracle Solaris-based clouds. The OpenDaylight Project is a community-led and industry-supported open source platform to advance SDN and Network Functions Virtualization (NFV).

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• Is avoiding the private access specifier in PHP justified?

  - by Tifa

  I come from a Java background and I have been working with PHP for almost a year now. I have worked with WordPress, Zend and currently I'm using CakePHP. I was going through Cake's lib and I couldn't help notice that Cake goes a long way avoiding the "private" access specifier. Cake says Try to avoid private methods or variables, though, in favor of protected ones. The latter can be accessed or modified by subclasses, whereas private ones prevent extension or re-use. in this tutorial. Why does Cake overly shun the "private" access specifier while good OO design encourages its use i.e to apply the most restrictive visibility for a class member that is not intended to be part of its exported API? I'm willing to believe that "private" functions are difficult test, but is rest of the convention justified outside Cake? or perhaps it's just a Cake convention of OO design geared towards extensibility at the expense of being a stickler for stringent (or traditional?) OO design?

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• Free Pluralsight Videos for this week

  - by TATWORTH

  Pluralsight have issued two free videoshttp://blog.pluralsight.com/2012/09/05/video-end-the-global-pollution-crisis-in-javascript/http://blog.pluralsight.com/2012/08/31/video-fake-it-until-you-make-it-with-fakeiteasy/Their exact words were: Free Videos this Week End the Global Pollution Crisis... In Javascript Too many globally scoped variables and functions can make Javascript code difficult to work with, particularly on large projects. See how to simulate the concept of namespaces using objects. Fake it Until You Make It with FakeItEasy FakeItEasy is a .NET framework for easily creating mock objects in tests. See how easy it is to FakeItEasy with complex nested hierarchies.

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• C++ compiler structures such as Virtual method Table etc

  - by Roger

  I am aware of the C++ Virtual Table which allows dynamic dispatch for doing things at runtime (although if I am honest I am not completely sure of the full list of things it achieves). I am wondering what other "low level" aspects of C++ are there, which one doesnt usually come across when learning the C++ language? Things like: -How is multithreading and locking on objects performed? -Overloading/overwriting functions -Generics Are there other "structures", similar to the vtable, which assist with these types of things on a lower level? (and if anyone can help with what the VTable actually does it would be most appreciated!)

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• OpenGL VBOs are slower then glDrawArrays.

  - by Arelius

  So, this seems odd to me. I upload a large buffer of vertices, then every frame I call glBindbuffer and then the appropriate gl*Pointer functions with offsets into the buffer, then I use glDrawArrays to draw all of my triangles. I'm only drawing about 100K triangles, however I'm getting about 15FPS. This is where it gets weird, if I change it to not call glBindBuffer, then change the gl*Pointer calls to be actual pointers into the array I have in system memory, and then call glDrawArrays the same, my framerate jumps up to about 50FPS. Any idea what I weird thing I could be doing that would cause this? Did I maybe forget to call glEnable(GL_ALLOW_VBOS_TO_RUN_FAST) or something?

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• Override a static library's global function

  - by Jason Madux

  Not sure if this question belongs here or on SO, but posting here for now :) I'm trying to override a global function defined in "StaticLib" for my iOS application but the compiler keeps giving me the duplicate symbol error. Relevant code: #import "MyApplication.h" #import "StaticLib.h" NSData* getAllData() { NSLog(@"myGetAllData"); return nil; } @implementation MyApplication ... @end I've looked into Apple's runtime library but that all seems to be class-oriented. Any suggestions or is it just not possible to override global functions from static libraries?

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• How to completely uninstall LXDE (12.04)?

  - by Jeremy Lunsford

  I'm trying to remove LXDE from my 12.04 system. I've tried running the following commands (as root from a terminal): apt-get remove lxde apt-get purge lxde apt-get autoremove I've also tried a rather lengthy command that was linked to from another question. However, when I log in, LXDE is still presented as an environment choice, and it still functions perfectly well, as if I've done nothing. I ran the above commands again, but got the following message: package . . . is not installed, so not removed. So, where do I go from here, short of re-installing Ubuntu and all my programs?

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• Programming language for simple program?

  - by jamherst

  I am wondering about which programming languages people see fit to create a program idea that I had. I am looking to create a fairly simple program whose main functions are adding to, managing, and searching through a database of people, all through a polished GUI. It will be for use in the business world, so I think Windows would be the priority, but Mac and Linux support wouldn't be bad. Also, eventually I would like to add the ability for an instance of one program on a computer to interact with other instances on the same network, mainly through the sharing of a database. Most of my experience is in Java, but I don't particularly like the appearance of Java GUIs, so I'm looking for an alternative. I noticed that a lot of people have suggested C++ or C# in similar posts, so what are some of the advantages/disadvantages of one or both if that is your suggestion. Thanks for any help in advance.

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• Python simulation-scripts architecture

  - by Beastcraft

  Situation: I've some scripts that simulate user-activity on desktop. Therefore I've defined a few cases (workflows) and implemented them in Python. I've also written some classes for interacting with the users' software (e.g. web browser etc.). Problem: I'm a total beginner in software design / architecture (coding isn't a problem). How could I structure what I described above? Providing a library which contains all the workflows as functions, or a separate class/module etc. for each workflow? I want to keep the the workflows simple. The complexity should be hidden in the classes for interacting with the users' software. Are there any papers / books I could read about this, or could you provide some tips? Kind regards, B

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• Is there a consolidated API reference for the Firefox browser.xul?

  - by cxw

  I have used Greasemonkey many times and am stepping up to Firefox extension development. Is there a consolidated reference for the variables, functions, and anything else that is available to overlays on browser.xul? Besides gBrowser, I note from the source that there are at least gNavToolbox, gURLBar, and gNavigatorBundle and would like more information about what services they provide. I have looked through the XUL School and XUL Tutorial on MDN, searched MozillaZine, and browsed the Jetpack documentation without finding anything but references to gBrowser. I have also looked at the code snippets referenced elsewhere (e.g.) and found specifics, but nothing that puts all the information together in one place. Is there such a reference?

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• Provincial Forum & the Best of Oracle OpenWorld for Public Sector

  - by user511693

            Provincial Ministries, Crowns and Agencies are transforming in an effort to meet increasing service expectations from citizens, legislative mandates, and current economic pressures. There is a need to be more efficient and accountable, providing services and information to constituents expeditiously and cost-effectively. However, legacy information systems typically support single program functions. These disparate systems pose a complex canvas upon which to compose a more efficient government systems landscape. Please join your fellow government leaders and Oracle on December 6, 2011 to discuss these challenges and learn how government agencies are leveraging IT as a core tool to streamline multi-organization operations thereby delivering a more cost-effective, citizen- centric, and sustainable government. Register here.

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• How to organize functional programs

  - by bleakcabal

  In OOP, your basic unit of organization for code is the class. A frequently used methodology in Java, C# and similar languages is to organize your code around having one file for each class with the file name following the class name. You can consider each of these class as a unit of organization to group a single concept. These classes are in in namespaces which often follow the directory structure of the files in the solution/project. Namespaces are another level of organization. How are large projects in functional languages typically organized? How to you determine how to split your functions into different files? Are other units of grouping beside files used? How is code typically organized within a single file?

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