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• 3D BSP rendering for maps made in 2d platform style

  - by Dev Joy

  I wish to render a 3D map which is always seen from top, camera is in sky and always looking at earth. Sample of a floor layout: I don't think I need complex structures like BSP trees to render them. I mean I can divide the map in grids and render them like done in 2D platform games. I just want to know if this is a good idea and what may go wrong if I don't choose a BSP tree rendering here. Please also mention is any better known rendering techniques are available for such situations.

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• "Oracle Certified Expert, Java Platform, Enterprise Edition 6 Java Persistence API Developer" Preparation

  - by Matt

  I have been working with Hibernate for a fews years now, and I want to solidify and demonstrate my knowledge by taking the Oracle JPA certification, also known as: "Oracle Certified Expert, Java Platform, Enterprise Edition 6 Java Persistence API Developer (CX-310-094)" There is a training course provided by Oracle: "Building Database Driven Applications with JPA (SL-370-EE6)" But this costs $1800 and I think it would be overkill for my needs. Ideally, I would like a self study guide that will cover everything in the exam. I have looked for books and these seem like possibilities: Pro JPA 2: Mastering the Java Persistence API (Expert's Voice in Java Technology) and Beginning Java EE 6 with GlassFish 3 2nd Edition (Expert's Voice in Java Technology) But these aren't checklist type study guides as far as I am aware. I found the official SCJP study guide very useful, but I think the equivalent text for the JPA exam isn't out yet. If anyone has taken this exam, I would be grateful to hear how you prepared for it. Thanks!

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• Unlock the Java EE 6 Platform using NetBeans 7.1

  - by arungupta

  NetBeans IDE provide tools, templates, and code generators that can be used for the specifications that are part of the Java EE 6 Platform. In a recent article Geertjan builds a simple end-to-end application using the standard Model-View-Controller architecture. It uses Java Persistence API 2, Servlets 3, JavaServer Faces 2, Enterprise Java Beans 3.1, Context and Dependency Injection 1.0, and Java API for RESTful Web Services 1.1 showing the complete stack. A self-paced and an extensive hands-on lab covering this article and much more is also available here. A video (47-minutes) explaining how to build a similar application can be viewed here.

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• Windows Azure Platform TCO/ROI Analysis Tool

  - by kaleidoscope

  Microsoft have released a tool to help you figure out how much money you can save by switching to Windows Azure from your on-premises solution. The tool will provide you with a customized estimate of potential cost savings you (or your company or organization) may achieve by building on the Windows Azure Platform. Upon completion of the TCO and ROI Calculator profile analysis, you will be presented with a detailed report which shows estimated line item costs for an accurate TCO and a 1 to 3 year ROI analysis for you or your company or organization. You should not interpret the analysis report you receive as a part of this process to be a commitment on the part of Microsoft, and Microsoft makes no guarantees regarding the accuracy of any information presented in the report. You should not view the results of this report as a substitute for engaging with a third party expert to independently evaluate you or your company’s specific computing needs. The analysis report you will receive is for informational purposes only. For more information check this link. Geeta, G

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• What Linux platform is Ubuntu Server

  - by Graeme

  I'm just trying to get an old HP ML150 up and running to learn on. I've installed ubuntu server on it and have found the drivers are all not installed. HP has drivers but I have no clue what platform to download.This is what I have to choose from. » Novell NetWare 6.5 » Red Hat Enterprise Linux 4 (AMD64/EM64T) » Red Hat Enterprise Linux 4 (x86) » Red Hat Enterprise Linux 5 Server (x86) » Red Hat Enterprise Linux 5 Server (x86-64) » SCO OpenServer 5 » SCO OpenServer 6 » SCO UnixWare 7 » SUSE Linux Enterprise Server 10 (AMD64/EM64T) » SUSE Linux Enterprise Server 10 (x86) » SUSE Linux Enterprise Server 9 (AMD64/EM64T) » SUSE Linux Enterprise Server 9 (x86) Any suggestions? Thank you in advance guys for your help.

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• Best choise of gui platform/framework for 3d development [closed]

  - by Miguel P

  The title pretty much says it all, so I'm developing a 3d engine for Directx 11, and it's going good so far. I started using .net forms as a GUI, but then(Of curiosity), i jumped to MFC, and the app looked great, but in my perspective, MFC is badly written, and it's too complicated, meaning that some things just took forever, while it would have taken a few seconds in .net forms. But my real question is: If i want to make an Editor for a 3d scene, where directx renders in the form( This was accomplished in .net forms), what would be the best choise of gui platform/framework? MFC,.net forms, Qt, etc....

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• Webinar Recording on Cross Platform Development with MonoTouch and Mono for Android

  - by Wallym

  The iPhone and Android are dominant in the marketplace. The two platforms currently have 85% of the smartphone marketplace and are continuing to grow that marketshare. Developers are being tasked with targeting these two platforms. In this session, we’ll take a high level look at how we can use c# and .NET knowledge to share code between iOS and and Android. We’ll look at linked files, using the Xamarin Mobile API, the challenges of running across platforms and frameworks, as well as other features of Visual Studio, Monotouch, MonoDevelop, and Mono for Android that allows us to write as much code that can run on both platforms.The following link is a recording on Cross Platform Development with MonoTouch and Mono for Android. I am guessing that the link only works in IE. That's out of my control.

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• VirtualBox: Import on different platform

  - by katsumii

  VirtualBox behaves almost the same on different OSes but the default network name for host-only network is different.The picture below is from Windows. On Linux, it will be named "vboxnet0" by default.This causes a problem on cross-platform export/import and it's already reported.#7067 (VERRINTERNALERROR: Inexistent host networking interface, named 'vboxnet0') – Oracle VM VirtualBoxVERR_INTERNAL_ERROR: Inexistent host networking interface, named 'vboxnet0'There are at least 2 workarounds.Open the imported VM in VBox GUI and pick correct network.Run CUI command like below. This one is for Windows.VBoxManage.exe modifyvm node1_1  --hostonlyadapter1 "VirtualBox Host-Only Ethernet Adapter"

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• Office 2010 & SharePoint 2010: Platform for Innovation

  There's a great new article by Michael Desmond in Visual Studio Magazine called "Office Alignment: Why Office 2010 and SharePoint 2010 are poised to unleash a new wave of developer innovation". Read it and you'll get Michael's always engaging insight into the new products investments in this release, and you'll read about some key customers who have leveraged the platform to drive their business. I've been reading a lot about innovation, and it can be a topic that begins to elude us when we...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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• Question about server usage, big community platform

  - by Json

  I’m working on a community platform writen in PHP, MySQL. I have some questions about the server usage maybe someone can help me out. The community is based on JQuery with many ajax requests to update content. It makes 5 - 10 AJAX(Json, GET, POST) requests every 5 seconds, the requests fetch user data like user notifications and messages by doing mySQL queries. I wonder how a server will handle this when there are for more than 5000 users online. Then it will be 50.000 requests every 5 seconds, what kind of server you need to handle this? Or maybe even more, when there are 15.000 users online, 150.000 requests every 5 seconds. My webserver have the following specs. Xeon Quad 2048MB 5000GB traffic Will it be good enough, and for how many users? Anyone can help me out or know where to find such information, like make a calculation?

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• add platform to ubuntu

  - by Med

  I am new in ubuntu (come from Win7), i want to know how can i add evironement variable in ubuntu, because the platform where i use exaggerate "To compile and run SCA composites with OW2 FraSCAti, you also have to set the FRASCATI_HOME system environment variable. FRASCATI_HOME has to point to the directory where the OW2 FraSCAti runtime distribution was extracted". And how can i add it to my path "For conveniance, you can add FRASCATI_HOME/bin to your PATH variable to get the frascati command available in the PATH". Please i'am new, could you explaine me what i do step by step..

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• G+ Platform Office Hours -- Retrieving Profile Information with the Sign In Button

  G+ Platform Office Hours -- Retrieving Profile Information with the Sign In Button Join us for a live coding demo of the sign in button and how to retrieve profile information using it! Or skip ahead to what you really care about: Meet your presenters: goo.gl Render the Sign-In Button: goo.gl Add a Client ID: goo.gl See Sign-In Render: goo.gl Grab the user resource (with live XHR/REST debugging*!): goo.gl Retrieve and render the user resource: goo.gl *If you don't feel you need a debugging crash course, feel free to skip from 10:14 to 18:30. :) From: GoogleDevelopers Views: 659 17 ratings Time: 29:39 More in Science & Technology

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• Make Sprite Jump Upon a Platform

  - by Geore Shg

  I have been struggling to make a game like Doodle Jump where the sprite jumps on a platform. So how do you make a sprite jump upon platforms in XNA? Th platforms are represented by a list of positions like Public platformList As List(Of Vector2) This is the collision detection under update() Dim mainSpriteRect As Rectangle = New Rectangle(CInt(mainSprite.Position.X), CInt(mainSprite.Position.Y), mainSprite.texture.Width, mainSprite.texture.Height) 'a node is simply a class with the texture and position' For Each _node As Node In _gameMap.nodeList Dim blockRect As Rectangle = New Rectangle(CInt(_node.Position.X), CInt(_node.Position.Y), _BlocksTexture.Width, _BlocksTexture.Height) If mainSpriteRect.Intersects(blockRect) Then 'what should I do here? For example velocity and position?' End If If (_node.Position.Y > 800) Then nodeList.Remove(_node) End If Next

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• Game Design - When to separate out pieces into static libraries?

  - by Jason

  I am developing a game that has a lot of platform generic pieces. I am wanting to separate out various pieces into static libraries and I would like to know what other devs do. I am considering targeting other platforms and I want to maintain an much platform neutrality as I can. I have a lot of generic level data in C++ classes. THinking all of the level data could go into a single static library. I have a lot of generic OpenGL code that I think could also go into a single static library. I am already using CMAKE for some and XCode 4.5 for the Apple specific pieces. What do other devs do to stay platform neutral? Does anyone use Eclipse instead of XCode and Visual Studio on Windows?

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• Introducing Next-Generation Enterprise Auditing and Database Firewall Platform Webcast, 12/12/12

  - by Troy Kitch

  Join us, December 12 at 10am PT/1pm ET, to hear about a new Oracle product that monitors Oracle and non-Oracle database traffic, detects unauthorized activity including SQL injection attacks, and blocks internal and external threats from reaching the database. In addition, this new product collects and consolidates audit data from databases, operating systems, directories, and any custom template-defined source into a centralized, secure warehouse. This new enterprise security monitoring and auditing platform allows organizations to quickly detect and respond to threats with powerful real-time policy analysis, alerting and reporting capabilities. Based on proven SQL grammar analysis that ensures accuracy, performance, and scalability, organizations can deploy with confidence in any mode. You will also hear how organizations such as TransUnion Interactive and SquareTwo Financial rely on Oracle today to monitor and secure their Oracle and non-Oracle database environments. Register for the webcast here.

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• Multi Level Security via Roles

  - by Geertjan

  I'm simulating a small scenario: Users can be dragged into roles; roles can be dragged into role groups. When a drop is made into a role group, a new role is created (WindowManager.getDefault().setRole("")). Then, when the user logs in, they log into a particular role. Depending on the role they log into, a different role group is assigned, which maps to a certain "role" in NetBeans Platform terms, i.e., the related level of security is applied and the related windows open.

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• Screencast: "Unlocking the Java EE Platform with HTML5"

  - by Geertjan

  The Java EE platform aims to increase your productivity and reduce the amount of scaffolding code needed in Java enterprise applications. It encompasses a range of specifications, such as JPA, EJB, JSF, and JAX-RS. How do these specifications fit together in an application, and how do they relate to each other? And how can HTML5 be used to leverage Java EE? In this recording of a session I did last week at Oredev in Malmo, Sweden, you learn how Java EE works and how it can be integrated with HTML5 front ends, via HTML, JavaScript, and CSS.

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• Photo sharing social platform [closed]

  - by user1696497

  I am working on a photo sharing social platform like Flickr, Photobucket. To start off with I have half a million photos as of now. I want to convert all of these into a single format, compression ratio and use it as an original image. I will be storing original image, re-sized image according to layout and a thumbnail. I have started off with ruby, didn't find supporting libraries. I am considering python as it has a good image processing library and instagram is using it. I want some advise about how the image has to be processed while uploading, efficient way of storage whether database or a file system, image compressions, and precautions to be taken. I would be having profile pictures, do I need store them separately or along with the images? If I want to store the images on a file system, which file system should I use and also should I store the url or should I use any intermediate key value store like redis?

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• Seesmic and Silverlight Provide an Extensible Social Platform

  This week, Seesmic announced a new Seesmic Desktop platform. They finally revealed more details to the public and released developer previews of their shell, SDK and some sample plugins. You can get them on the Seesmic Developer Wiki. The best part? Its built on Silverlight 4 and the Managed Extensibility Framework (MEF)! This is awesome news for those of us who have been using various clients that have been locked down to specific use scenarios. There always is a few things I want/need/etc in...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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• Cross-platform & 3D mobile game development [on hold]

  - by Sylvia MBemba

  I am not a developer or programmer and, I am planning an educative project that will involve having students to develop a cross-platform, 3D mobile game, similar to the SimCity concept. I need to write a project requirement and I'd like to pick someone's brain to understand what's involved in developing such a project: Is it realistic to have one or two students to do it? and along their other modules at uni? How much time can it take to develop from scratch? what are the different skills required?

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• Q&A platform like StackExchange's sites? [closed]

  - by Sirko

  Possible Duplicate: Is there a free, open-source question and answer (Q&A) application similar to StackExchange? I need a Q&A platform like StackExchange's sites for lawyers and for free legal questions/answers. So, it must be simple, fast, convenient, with an attractive look. Regular forum's platforms don't suit these characteristics. I found, that bbPress (http://bbpress.org/forums/) isn't bad for this purpose. Is there anything else good for my task? I would be very thankful for helping!

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• Platform Builder: PBWorkspaces CESysgen.bat Not Used?

  - by Bruce Eitman

  One of the things that I like about Windows CE is that I am always learning new things, but in this case it is a bit disturbing. We working with Multi UI (MUI) this week and discovered some problems with Windows CE 5.0 and Chinese language support. These problems don’t exist in CE 6.0. The problem was that in the batch files in Public\CEBASE\oak\misc, specifically weceshellfe.bat, some of the shell components needed are only included if certain LOCALs are selected. English is not one of them, I suppose this is because someone didn’t think that we would ever use them and English – doh. No problem, just work around this in PBWorkspaces\<workspace>\WINCE500\<BPS>\cesysgen.bat. But that didn’t work. After a lot of trial and error, what I determined is that this cesysgen.bat isn’t actually used by Platform Builder any more.  Instead, in that same folder is a <workspace>.bat file that is called by Public\CEBASE\oak\misc\cesysgen.bat. That leads to some new problems though, but solvable, in that what I really wanted to do was add a fix after the batch files in CEBASE run, but <workspace>.bat runs before the other batch files in CEBASE. So what I finally came up with was to add the fix to the PASS2 handling in <workspace>.bat. Copyright © 2010 – Bruce Eitman All Rights Reserved

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• Drag2Up Brings Multi-Source Drag and Drop Uploading to Firefox

  - by ETC

  Last fall we shared Drag2Up with you, a handy little Chrome extension that make it a snap to drag, drop, and upload files to a variety of file sharing sites. Now that same easy sharing is available for Firefox. Just like the Chrome version the Firefox version adds in super simple drag and drop file sharing to your web browsing experience. Drag images, text, and other file types onto any text box and Drag2Up uploads them to the file sharing service you’ve specified in the settings menu such as Imgur, Imageshack, Pastebin, Hotfile, Droplr, and more. Hit up the link below to read more and grab a copy for your Firefox install. Drag2Up [Mozilla Add-ons] Latest Features How-To Geek ETC How To Make Hundreds of Complex Photo Edits in Seconds With Photoshop Actions How to Enable User-Specific Wireless Networks in Windows 7 How to Use Google Chrome as Your Default PDF Reader (the Easy Way) How To Remove People and Objects From Photographs In Photoshop Ask How-To Geek: How Can I Monitor My Bandwidth Usage? Internet Explorer 9 RC Now Available: Here’s the Most Interesting New Stuff Never Call Me at Work [Humorous Star Wars Video] Add an Image Properties Listing to the Context Menu in Chrome and Iron Add an Easy to View Notification Badge to Tabs in Firefox SpellBook Parks Bookmarklets in Chrome’s Context Menu Drag2Up Brings Multi-Source Drag and Drop Uploading to Firefox Enchanted Swing in the Forest Wallpaper

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• displaying multi-section html documents - best practices

  - by ecpepper

  I work at a research organization and we publish a lot of large-ish documents, usually organized in sections. What I want to know is how best to present these multi-section documents on our website. Presently, what I do is load the entire document as a single page, with each section as its own div. Then I show and hide divs as needed via a table of contents and "next" and "prev" buttons. The advantages to this are mainly: 1) that you can move between sections very quickly, 2) it produces consistent analytics (when a page is loaded, I know a report is being read). The disadvantages, however, are real: Readers can't take advantage of browser back/forward buttons to move between sections. It's complicated to create direct links to individual sections (I can do it with javascript but it's not easy for other people to grab and share). For long reports, you have to wait for the full report to load before you can move around (and that can include hordes of images and charts). Do other people have thoughts on better ways to organize this? Here's an example of the current system: http://massbudget.org/825

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• Test a simple multi-player (upto four players) Android game in single developer machine

  - by Kush

  I'm working on a multi-player Android game (very simple it is that it doesn't have any game-engine used). The game is based on Java Socket. Four devices will connect the game server and a new thread will manage their session. The game server will server many such sessions (having 4 players each). What I'm worried about is the testing of this game. I know it is possible to run multiple android emulators, but my development laptop is very limited in capabilities (3 GB RAM, 2 Ghz Intel Core2Duo and on-board Graphics). And I'm already using Ubuntu to develop the game so that I have more user memory available than I'd have with Windows. Hence, the laptop will burn-to-death on running 4 emulator instances. I don't have access to any android device, neither I have another machine with higher configuration. And I still have to develop and test this game. P.S. : I'm a CS student, and currently don't work anywhere, and this game is college project, so if there are any paid solutions, I cannot afford it. What can I do to test the app seamlessly? ability to test even only 4 clients (i.e. only 1 session) would suffice, its alright if I can't simulate real environment with some 10-20 active game sessions (having 4 players each).

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