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• Can't complete dropbox installation from behind proxy

  - by Mark Jones

  Problem: My PC on campus sits behind a proxy (requiring authentication) and I can't setup Dropbox. I am convinced that this is a proxy issue as I can't setup Ubuntu one either (but I don't use Ubuntu One so that is not a problem). I have looked at the Ubuntu One fix but it seems to be to modify settings explicitly related to Ubuntu One. I can install the nautilus-dropbox package (compiled from source and from .deb package from website and from software centre) but once I click OK from the "Dropbox Installation" dialog box (prompting me to download the proprietary daemon) the installation just freezes with the OK button pressed. When I look at its process in System Monitor its waiting channel is inet_wait_for_connect. I have set the following proxy directives thus far: Added mj22:**@proxy.waikato.ac.nz:80 information to network proxy settings under network in settings. Added http_host and http_port variables under gconf-editor-system-proxy Added 'host', 'authentication_password' 'authentication_user' and ticked 'user authentication' and 'use_http_proxy' under gconf-editor-system-http_proxy Added export http_proxy="http://mj22:**@proxy.waikato.ac.nz:80/" to /etc/bash.bashrc Added Acquire::http::proxy "http://mj22:**@proxy.waikato.ac.nz:80/"; to /etc/apt/apt.conf (which is what I imagine is letting Software Center retrieve packages). (where ** is my password) I have also added the equivalent ftp and https lines for the above entries. I get the internet fine and Software Centre can download packages but thats it. Related issues: The software centre can't fetch reviews (but can download packages). When trying to add an online account in Gnome 3 a dialog pop up appears with "Error getting a Request Token: Cannot connect to proxy (proxy.waikato.ac.nz)" Updates: After some time (10mins ish) Dropbox shows an error dialog box that reads: Trouble connecting to Dropbox servers. Maybe your internet connection is down, or you need to set you http_proxy environment variable. Is there a way I can see what environment variables are currently set?

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• How do I create a 2.5d parallax effect?

  - by Nikolay Dyankov

  I have a decent background in 3D graphics and programming, but I'm new to game development. I'm currently exploring different possibilities and I really want to make an RPG game. I was thinking about classic 2D isometric view, but I really love how Diablo 2 looks and feels to play. My question is - how can I achieve Diablo 2's parallax effect? Everything looks hand drawn with baked lights and shadows and looks awesome, but when you move around you notice some perspective. For example, let's say that I drew a big hall with columns in Photoshop with an orthographic perspective (classic pixel art style, just parallel lines). How would I give parallax effect to this scene when the character moves around? If I use camera-facing sprites for everything it would probably look OK in the distance, but it would be really fake when a character comes close to a column (cylinder) for example. Any suggestions? How did Blizzard make the parallax effect in Diablo 2? See this screenshot: http://guidesmedia.ign.com/guides/10629/images/act2tombs.jpg

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• Perl - can't flush STDOUT or STDERR

  - by Jim Salter

  Perl 5.14 from stock Ubuntu Precise repos. Trying to write a simple wrapper to monitor progress on copying from one stream to another: use IO::Handle; while ($bufsize = read (SOURCE, $buffer, 1048576)) { STDERR->printflush ("Transferred $xferred of $sendsize bytes\n"); $xferred += $bufsize; print TARGET $buffer; } This does not perform as expected (writing a line each time the 1M buffer is read). I end up seeing the first line (with a blank value of $xferred), and then the 7th and 8th lines (on an 8MB transfer). Been pounding my brains out on this for hours - I've read the perldocs, I've read the classic "Suffering from Buffering" article, I've tried everything from select and $|++ to IO::Handle to binmode (STDERR, "::unix") to you name it. I've also tried flushing TARGET with each line using IO::Handle (TARGET-flush). No dice. Has anybody else ever encountered this? I don't have any ideas left. Sleeping one second "fixes" the problem, but obviously I don't want to sleep a second every time I read a buffer just so my progress will output on the screen! FWIW, the problem is exactly the same whether I'm outputting to STDERR or STDOUT.

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• How can I email a vCard to users who are unable to download it?

  - by Zachary Lewis

  I have created vCards for the people in my business, and they are great for users on standard browsers; however, users browsing on a mobile device (notably iPhone) are unable to download and view my vCard. Is there a service that I can direct them to that will allow them to receive an email containing my vCard, or is there a simple way I can set this up myself? I am running my site on WordPress, and initial attempts have failed spectacularly. I'd like for them to be given the option to perform either action, but have the predominant action more prominently visible (probably via user agent detection). Something along the lines of: It looks like you're on an iPhone! It's a bummer they can't download vCards, but if you enter your email address, we'll wrap one up and send it your way! Don't worry, we won't send you junk email. Heck, we don't even save your email address! [email protected] Think you've got it all figured out? Fine, download the vCard instead! If you know of a service or simple-to-implement PHP library (or WordPress plug-in), please let me know! If not, let me know what the best solution to this problem is!

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• How do I get same scrollbar style for gtk-2.0 and gtk-3.0 apps?

  - by David López

  Sorry for my English mistakes, I'm Spanish. I'm using Ubuntu 11.10 in a tablet. I've removed overlay-scrollbars and I have increased the scrollbars size to use them with fingers. In /usr/share/themes/Ambiance/gtk-2.0/gtkrc I've changed: GtkScrollbar::slider-width = 23 GtkScrollbar::min-slider-length = 51 and added: GtkScrollbar::has-backward-stepper = 0 GtkScrollbar::has-forward-stepper = 0 In /usr/share/themes/Ambiance/gtk-3.0/gtk-widgets.css I've changed: GtkScrollbar-min-slider-length: 51; GtkRange-slider-width: 23; (in .scrollbar item) Now my scrollbars are usable with fingers, but they seem different for gtk-2.0 and gtk-3.0 apps. In the picture the left scrollbar is a gtk-2.0 app and the right one is a gtk-3.0 I want to setup gtk2.0 bar to be exactly the same as gtk3.0, that is Make upper and lower extremes empty (oranges circles in the picture) Reduce the length of the 3 horizontal lines (black ellipse) Can somebody help me? Thanks. Hola. Uso ubuntu 11.10 en una tableta; he quitado overlay-scrollbars y he incrementado el tamaño de las barras para poder usarlas con los dedos. Concretamente en /usr/share/themes/Ambiance/gtk-2.0/gtkrc be cambiado GtkScrollbar::slider-width = 23 GtkScrollbar::min-slider-length = 51 y añadido GtkScrollbar::has-backward-stepper = 0 GtkScrollbar::has-forward-stepper = 0 En /usr/share/themes/Ambiance/gtk-3.0/gtk-widgets.css he cambiado GtkScrollbar-min-slider-length: 51; GtkRange-slider-width: 23; (en el apartado.scrollbar) Mis barras son manejables con dedos, pero se ven muy distintas para aplicaciones gtk-2.0 y gtk-3.0. La barra de la izquierda de la imagen es 2.0 y la de la derecha es 3.0 Quiero configurar las barras 2.0 exactamente como las 3.0, para lo que necesito Vaciar los extremos de la barra (círculos naranjas en la imagen) Reducir la longitud de las 3 líneas horizontales (elipses negras en la imagen) ¿Alguna idea? Gracias.

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• Low-level GPU code and Shader Compilation

  - by ktodisco

  Bear with me, because I will raise several questions at once. I still feel, though, that overall this can be treated as one question that may be answered succinctly. I recently dove into solidifying my understanding of the assembly language, low-level memory operations, CPU structure, and program optimizations. This also sparked my interest in how higher-level shading languages, GLSL and HLSL in particular, are compiled and optimized, as well as what formats they are reduced to before machine code is generated (assuming they are not converted directly into machine code). After a bit of research into this, the best resource I've found is this presentation from ATI about the compilation of and optimizations for HLSL. I also found sample ARB assembly code. This sort of addressed my original curiosity, but it raised several other questions. The assembler code in the ATI presentation seems like it contains instructions specifically targeted for the GPU, but is this merely a hypothetical example created for the purpose of conceptual understanding, or is this code really generated during shader compilation? If so, is it possible to inspect it, or even write it in place of the higher-level syntax? My initial searches for an answer to the last question tell me that this may be disallowed, but I have not dug too deep yet. Also, along the same lines, are GLSL shader programs compiled into ARB assembly code before machine code is generated, and is it possible to write direct ARB assembly? Lastly, and perhaps what I am most interested in finding out: are there comprehensive resources on shader compilation and low-level GPU code? I have been unable to find any thus far. I ask simply because I am curious :)

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• Screwed up terminal after modifying bashrc

  - by omgzor

  I ended up screwing up my terminal, while setting up Sbt for the Coursera Scala course. I can't summon gedit (or anything else) anymore. I get the following error: Command 'gedit' is available in '/usr/bin/gedit' The command could not be located because '/usr/bin' is not included in the PATH environment variable. Also, each new instance of Terminal writes these messages before any command is written: -bash: :/home/antonio/jdk7/jdk1.7.0_07/bin: No such file or directory -bash: export: `/home/antonio/Desktop/Scala/install/sbt/bin:/home/antonio/jdk7/jdk1.7.0_07/bin': not a valid identifier I recently did a manual installation of the jdk 7, which apparently works: java -version java version "1.7.0_07" Java(TM) SE Runtime Environment (build 1.7.0_07-b10) Java HotSpot(TM) 64-Bit Server VM (build 23.3-b01, mixed mode) While setting up Sbt, I made the mistake of editing bashrc by writing gedit ~/.bashrc on my terminal instead of writing gedit .bashrc, I wrote the following lines at the end of the bashrc file that opened: export PATH=/PATH/TO/YOUR/jdk1.7.0-VERSION/bin:$PATH export PATH=/home/antonio/jdk7/jdk1.7.0_07/bin:$PATH What is wrong here? How can I access my bashrc file and modify it again?

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• How to keep word document, html and pdf documentation aligned

  - by dendini

  Is there a way to write documentation in a WYSIWYG editor which can then export into HTML, WORD and PDF and keep copies synchronized? This documentation are mostly technical notes and some contextual help for some softwares so they must contain images and some styling, they are not programmer's documentation (API list or functions list) for which probably a program like Javadoc or Doxygen would be the best choice. For example how do companies with hundreds different software lines and thousands of programmers deal with this? I have several solutions but they all seem lacking in some aspect: Latex/Tex : very good pdf and html export, not very user friendly and no full-blown WYSIWYG editor available. LibreOffice/OpenOffice : full blown WYSIWYG editor however html export not so good (need to edit manually exported html which needs to be maintained separately ) Mediawiki or any other wiki : could be keeping documentation in wikitext format, so html is automatically generated, pdf exportation is quite good with many available plugins. Again however need some formation for the staff to use it and need to setup a server for this. Notice I'm not asking for software A vs software B, I'm asking for general advice, big companies procedures for documentation and yes some software product names if available.

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• ReSharper C# Live Template for Declaring Routed Event

  - by Bart Read

  Here's another WPF ReSharper Live Template for you. This one is for declaring standalone routed events of any type. Again, it's pretty simple:        #region $EVENTNAME$ Routed Event       public static readonly RoutedEvent $EVENTNAME$Event = EventManager.RegisterRoutedEvent(            "$EVENTNAME$",           RoutingStrategy.$ROUTINGSTRATEGY$,           typeof( $EVENTHANDLERDELEGATE$ ),           typeof( $DECLARINGTYPE$ ) );       public event $EVENTHANDLERDELEGATE$ $EVENTNAME$       {           add { AddHandler( $EVENTNAME$Event, value ); }           remove { RemoveHandler( $EVENTNAME$Event, value ); }       }       protected virtual void On$EVENTNAME$()       {           RaiseEvent( new $EVENTARGSTYPE$( $EVENTNAME$Event, this ) );           $END$       }       #endregion Here are my previous posts along the same lines: ReSharper C# Live Template for Read-Only Dependency Property and Routed Event Boilerplate ReSharper C# Live Template for Dependency Property and Property Change Routed Event Boilerplate Code Enjoy! Technorati Tags: resharper,live template,c#,routed event,wpf,boilerplate,code generation

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• Apache HTTPS ProxyPass certificate location

  - by oz1cz

  I'm trying to set up an Apache server that uses ProxyPass to pass HTTPS requests on to another server. Let's call the proxy server ALPHA and the target server BETA. ALPHA does not run HTTPS, but BETA does. I first tried using this virtual host specification on ALPHA: <VirtualHost *:443> ServerName mysite.com ProxyPass / https://192.168.1.105/ # BETA's IP address ProxyPassReverse / https://192.168.1.105/ # BETA's IP address ProxyPreserveHost On ProxyTimeout 600 SSLProxyEngine On RequestHeader set Front-End-Https "On" CacheDisable * </VirtualHost> But when I tried this, Apache complained saying, "[error] Server should be SSL-aware but has no certificate configured [Hint: SSLCertificateFile]". I had to copy the SSL certificate from BETA to ALPHA and add these lines to the host specification on ALPHA: SSLEngine on SSLCertificateKeyFile /usr/local/ssl/private/BETA_private.key SSLCertificateFile /usr/local/ssl/crt/BETA_public.crt SSLCertificateChainFile /usr/local/ssl/crt/BETA_intermediate.crt Now the system works. But I have a feeling that I have done something wrong or unnecessary. I have the web site's private key and certificate lying on both ALPHA and BETA. Is that necessary? Should I have done it differently?

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• Financial Statement Presentation Changes

  - by Theresa Hickman

  On March 10, 2010, FASB and IASB came to an agreement on financial statement presentation. They have been discussing changes for some time, such as displaying more lines items and moving certain line items from equity to the P&L, and now it seems they have finally come to a joint decision and put it in writing. I recently learned that there will be a trend to book nothing to equity and to convey everything in the P&L to take away any facility for companies to hide losses from its shareholders, investors, etc. (I'm exaggerating when I say book nothing to equity. Obviously, those items that already live there, such as stocks and dividends, would stay there.) But accounts like your CTA (Cumulative Translation Adjustment account) used to plug the gain or loss from equity translation would move from the equity section to your expense section. The rationale is that when you run translation, you're doing so for a subsidiary that you own, or simply put, it's a foriegn investment. Thus, the gains/losses of that foriegn investment should be itemized on your P&L and not buried in equity. The FASB will include changes in financial statement presentation in its Exposure Draft that is planned for issuance at the end of April 2010. Companies will be required to adopt the financial statement presentation provisions retroactively. Yes, that means companies will need to apply these changes to previously issued financial statements. The FASB Summary of Board Decisions can be found at "fasb.org".

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• Can I re-license Academic Free License code under 2-Clause BSD / ITC?

  - by Stefano Palazzo

  I want to fork a piece of code licensed under the Academic Free License. For the project, it would be preferable to re-license it under the ISC License or the 2-Clause BSD license, which are equivalent. I understand that the AFL grants me things such as limitation of liability, but licensing consistency is much more important to the project, especially since we're talking about just 800 lines of code, a quarter of which I've modified in some way. And it's very important for me to give these changes back to the community, given the fact that this is software relevant to security - I need the public scrutiny that I'll get by creating a public fork. In short: At the top of the file I want to say this, or something like it: # Licensed under the Academic Free License, version 3 # Copyright (C) 2009 Original Author # Licensed under the ISC License # Copyright (C) 2012 Stefano Palazzo # Copyright (C) 2012 Company Am I allowed to do this? My research so far indicates that it's not clear whether the AFL is GPL-Compatible, and I can't really understand any of the stuff concerning re-licensing to other permissive licenses. As a stop gap, I would also be okay with re-licensing under the GPL, however: I can find no consensus (though I can find disagreement) on whether this is allowed at all, and I don't want to risk it, of course. Wikipedia: ISC License Wikipedia: Academic Free License

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• Mixing XNA and silverlight gives wierd graphics

  - by Mech0z

  I making a small 3dgame which is made as a Silverlight and XNA app, but when I draw the sprites the graphics becomes all wierd. All my primitive types are rendered correctly, but my 3d models are just wierd My Draw is like this when silverlight is set to draw private void OnDraw(object sender, GameTimerEventArgs e) { // Render the Silverlight controls using the UIElementRenderer elementRenderer.Render(); // Clear the screen to a solid color SharedGraphicsDeviceManager.Current.GraphicsDevice.Clear(Color.CornflowerBlue); switch (gameState) { case GameState.ChooseStarter: TextBlockStatus.Text = "Find Starting Player"; break; case GameState.PlaceBrick: TextBlockPlayer.Text = (playerTurn == PlayerTurn.PlayerOne) ? "Player One" : "Player Two"; TextBlockState.Text = "Place Brick"; foreach (IGraphicObject obj in _3dObjects) { obj.Draw(cameraPosition, e); } break; case GameState.GiveBrick: TextBlockState.Text = "Give Brick"; break; } spriteBatch.Begin(); // Using the texture from the UIElementRenderer, // draw the Silverlight controls to the screen spriteBatch.Draw(elementRenderer.Texture, cameraProjection, Color.White); spriteBatch.End(); } This gives me this output If I comment the spritebatch lines out I get the correct output, except the silverlight text is of course not shown I am not entirely sure what to look for except that zero vector I am giving to the spritebatch, but if thats the source I have no idea what I am supposed to set it as epspecially when its a 2d vector

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• CodePlex Daily Summary for Sunday, June 30, 2013

  CodePlex Daily Summary for Sunday, June 30, 2013Popular ReleasesGardens Point LEX: Gardens Point LEX version 1.2.1: The main distribution is a zip file. This contains the binary executable, documentation, source code and the examples. ChangesVersion 1.2.1 has new facilities for defining and manipulating character classes. These changes make the construction of large Unicode character classes more convenient. The runtime code for performing automaton backup has been re-implemented, and is now faster for scanners that need backup. Source CodeThe distribution contains a complete VS2010 project for the appli...ZXMAK2: Version 2.7.5.7: - fix TZX emulation (Bruce Lee, Zynaps) - fix ATM 16 colors for border - add memory module PROFI 512K; add PROFI V03 rom image; fix PROFI 3.XX configVidCoder: 1.5.1 Beta: Added French translation. Updated HandBrake core to SVN 5614. Fixed crash in locales with , as the decimal marker. Fixed a few warnings for compression level and quality on audio encodings.Twitter image Downloader: Twitter Image Downloader 2 with Installer: Application file with Install shield and Dot Net 4.0 redistributableUltimate Music Tagger: Ultimate Music Tagger 1.0.0.0: First release of Ultimate Music TaggerBlackJumboDog: Ver5.9.2: 2013.06.28 Ver5.9.2 (1) ??????????(????SMTP?????)?????????? (2) HTTPS???????????Outlook 2013 Add-In: Configuration Form: This new version includes the following changes: - Refactored code a bit. - Removing configuration from main form to gain more space to display items. - Moved configuration to separate form. You can click the little "gear" icon to access the configuration form (still very simple). - Added option to show past day appointments from the selected day (previous in time, that is). - Added some tooltips. You will have to uninstall the previous version (add/remove programs) if you had installed it ...Terminals: Version 3.0 - Release: Changes since version 2.0:Choose 100% portable or installed version Removed connection warning when running RDP 8 (Windows 8) client Fixed Active directory search Extended Active directory search by LDAP filters Fixed single instance mode when running on Windows Terminal server Merged usage of Tags and Groups Added columns sorting option in tables No UAC prompts on Windows 7 Completely new file persistence data layer New MS SQL persistence layer (Store data in SQL database)...NuGet: NuGet 2.6: Released June 26, 2013. Release notes: http://docs.nuget.org/docs/release-notes/nuget-2.6Python Tools for Visual Studio: 2.0 Beta: We’re pleased to announce the release of Python Tools for Visual Studio 2.0 Beta. Python Tools for Visual Studio (PTVS) is an open-source plug-in for Visual Studio which supports programming with the Python language. PTVS supports a broad range of features including CPython/IronPython, Edit/Intellisense/Debug/Profile, Cloud, HPC, IPython, and cross platform debugging support. For a quick overview of the general IDE experience, please watch this video: http://www.youtube.com/watch?v=TuewiStN...Player Framework by Microsoft: Player Framework for Windows 8 and WP8 (v1.3 beta): Preview: New MPEG DASH adaptive streaming plugin for Windows Azure Media Services Preview: New Ultraviolet CFF plugin. Preview: New WP7 version with WP8 compatibility. (source code only) Source code is now available via CodePlex Git Misc bug fixes and improvements: WP8 only: Added optional fullscreen and mute buttons to default xaml JS only: protecting currentTime from returning infinity. Some videos would cause currentTime to be infinity which could cause errors in plugins expectin...AssaultCube Reloaded: 2.5.8: SERVER OWNERS: note that the default maprot has changed once again. Linux has Ubuntu 11.10 32-bit precompiled binaries and Ubuntu 10.10 64-bit precompiled binaries, but you can compile your own as it also contains the source. If you are using Mac or other operating systems, please wait while we continue to try to package for those OSes. Or better yet, try to compile it. If it fails, download a virtual machine. The server pack is ready for both Windows and Linux, but you might need to compi...Compare .NET Objects: Version 1.7.2.0: If you like it, please rate it. :) Performance Improvements Fix for deleted row in a data table Added ability to ignore the collection order Fix for Ignoring by AttributesMicrosoft Ajax Minifier: Microsoft Ajax Minifier 4.95: update parser to allow for CSS3 calc( function to nest. add recognition of -pponly (Preprocess-Only) switch in AjaxMinManifestTask build task. Fix crashing bug in EXE when processing a manifest file using the -xml switch and an error message needs to be displayed (like a missing input file). Create separate Clean and Bundle build tasks for working with manifest files (AjaxMinManifestCleanTask and AjaxMinBundleTask). Removed the IsCleanOperation from AjaxMinManifestTask -- use AjaxMinMan...VG-Ripper & PG-Ripper: VG-Ripper 2.9.44: changes NEW: Added Support for "ImgChili.net" links FIXED: Auto UpdaterDocument.Editor: 2013.25: What's new for Document.Editor 2013.25: Improved Spell Check support Improved User Interface Minor Bug Fix's, improvements and speed upsCY_MVC: sample 1.0: sample 1.0WPF Composites: Version 4.3.0: In this Beta release, I broke my code out into two separate projects. There is a core FasterWPF.dll with the minimal required functionality. This can run with only the Aero.dll and the Rx .dll's. Then, I have a FasterWPFExtras .dll that requires and supports the Extended WPF Toolkit™ Community Edition V 1.9.0 (including Xceed DataGrid) and the Thriple .dll. This is for developers who want more . . . Finally, you may notice the other OPTIONAL .dll's available in the download such as the Dyn...Channel9's Absolute Beginner Series: Windows Phone 8: Entire source code for the Channel 9 series, Windows Phone 8 Development for Absolute Beginners.Indent Guides for Visual Studio: Indent Guides v13: ImportantThis release does not support Visual Studio 2010. The latest stable release for VS 2010 is v12.1. Version History Changed in v13 Added page width guide lines Added guide highlighting options Fixed guides appearing over collapsed blocks Fixed guides not appearing in newly opened files Fixed some potential crashes Fixed lines going through pragma statements Various updates for VS 2012 and VS 2013 Removed VS 2010 support Changed in v12.1: Fixed crash when unable to start...New Projects2d Minecraft Skin Assembler: 2d Minecraft skin assembler downloads a copy of a Minecraft player skin and rearranges the various parts.Arduino Template Express: Arduino Template Express (ATE) provides a wizard driven approach to the creation of libraries and sketches for multiple Arduino development boards. ATE is the ASP.NET Identity / Membership Database (SSDT): Web application membership database seed project which can be used to bootstrap your custom ASP.NET Identity / Membership solutionC# Lite Framework: C# Lite Framework CSCore: .NET Audio libraryGraph based image segmentation: This is an parallel implementation of graph based image segmentation algorithm.Indico Automatic Downloader: Automatically download new files in an Indico agenda. Runs every 5 minuets, and pulls down changes. Hopefully, no more having to click to get latest version!l5lab: some code practiseLAPR4: Academic project in the scope of "Laboratory / Project 4" (2nd year of Informatics Engineering). This is a fork of CleanSheets.NH-New: This is a ample projectogloszenia: projekt na bazy dancyhpev - A managed PE file viewer: pev - A managed PE file viewer TidyVidBack - a video background, responsive skin for DNN / DotNetNuke: This is a full-screen video background, responsive skin design for use in DNN - DotNetNuke based on Adammer's Tidy Skin.

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• Drawing multiple triangles at once isn't working

  - by Deukalion

  I'm trying to draw multiple triangles at once to make up a "shape". I have a class that has an array of VertexPositionColor, an array of Indexes (rendered by this Triangulation class): http://www.xnawiki.com/index.php/Polygon_Triangulation So, my "shape" has multiple points of VertexPositionColor but I can't render each triangle in the shape to "fill" the shape. It only draws the first triangle. struct ShapeColor { // Properties (not all properties) VertexPositionColor[] Points; int[] Indexes; } First method that I've tried, this should work since I iterate through the index array that always are of "3s", so they always contain at least one triangle. //render = ShapeColor for (int i = 0; i < render.Indexes.Length; i += 3) { device.DrawUserIndexedPrimitives<VertexPositionColor> ( PrimitiveType.TriangleList, new VertexPositionColor[] { render.Points[render.Indexes[i]], render.Points[render.Indexes[i+1]], render.Points[render.Indexes[i+2]] }, 0, 3, new int[] { 0, 1, 2 }, 0, 1 ); } or the method that should work: device.DrawUserIndexedPrimitives<VertexPositionColor> ( PrimitiveType.TriangleList, render.Points, 0, render.Points.Length, render.Indexes, 0, render.Indexes.Length / 3, VertexPositionColor.VertexDeclaration ); No matter what method I use this is the "typical" result from my Editor (in Windows Forms with XNA) It should show a filled shape, because the indexes are right (I've checked a dozen of times) I simply click the screen (gets the world coordinates, adds a point from a color, when there are 3 points or more it should start filling out the shape, it only draws the lines (different method) and only 1 triangle). The Grid isn't rendered with "this" shape. Any ideas?

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• Is comparing an OO compiler to a SQL compiler/optimizer valid?

  - by Brad

  I'm now doing a lot of SQL development at my new job where as before I was doing Object Oriented desktop app stuff. I keep running across very large scripts (thousands of lines) and wanting to refactor in some way. I am seeing that SQL is a different sort of beast and it's probably fine to have these big scripts for the most part but while explaining this to me people are also insisting that the whole idea of refactoring is bad. That stuff like the .NET compiler are actually burdened by refactored code and that a big wall of code is more efficient and better design than code designed for reuse, readability and scalability. The other argument is that OO compilers are almost dangerously inefficient and don't have efficient memory management or runs too many CPU instructions compared to older "simpler" compilers and compared to SQL. Are these valid complaints? Even if some compiler like a C compiler is modestly more "efficient" (whatever that means on this high of a level without seeing code) would you want to write applications in C over C# or Java? Is comparing an OO compiler to a SQL compiler/optimizer even valid?

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• How to implement a birds eye view of 2D Grid Map using Android

  - by IM_Adan

  I'm a true beginner with using the android platform and I'm having difficulties on implementing a 2D grid system for a tower defense type game. Where I can place towers on a specific tile and enemies will be able to traverse through tiles etc. What I would like is a practical explanation of how I could tackle this. A step by step guide for dummies. This is what I believe are the necessary steps to take, I think I might be wrong but I hope someone could help me out. Calculate the Width and Height of the view I'm working with. Based on that, determine the number of tiles required and their dimensions, (Still not sure how I would do this) Create each tile as a Rectangle object and draw these rectangle on a canvas I would really be grateful if someone could steer me in the right direction on how to implement a 2D Grid Map using android. I hope the answer to this questions helps the TRUE beginners out there like me. I have looked at the following links below yet I still feel that I don't trully understand what's going on. For XNA: 2D Grid based game - how should I draw grid lines? How to Create a Grid for a 2D Game? Also a quick note: All my previous game development has been in Java, mostly using Java SE and Swing. I also have good understanding of the game development process, it is only android thats confusing me :S

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• How do i disable intel graphics in a hybrid graphics setup?

  - by Eshwar

  Hi, I have a Dell Vostro 3700 version A10. The relevant bits from lspci -v | grep VGA are: 00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 18) and 01:00.0 VGA compatible controller: nVidia Corporation GT216 [GeForce GT 330M] (rev a2) so as you can see this is one of those hybrid graphics laptops. Now, I have no interest in any kind of switching. I would like to completely disable the Intel Graphics thats on the processor. I checked in the xorg.log file and it shows that the intel card is in use. from lsmod i see it uses the i915 module. I tried blacklisting that module in /etc/modprobe.d/blacklist.conf but that didn't really work because i still couldn't use the nvidia card for display. I wish there was a BIOS option to disable, but there isn't. Some people have also suggested changing the SATA mode to compatibility, but that does not work either in this case as the intel vga controller still shows up in lspci I tried setting the busid manually in the /etc/X11/xorg.conf file but it still didn't work. It gave me an error that said something along the lines of screen not detected. any bits of xorg.log that you'd like me to attach? So what I am looking for is some solution that allows me to completely disable the use of the intel vga controller. if it was blocked somehow it'd be nice. as if it were not present. Any suggestions? I am desperate here actually. Because I cannot use the HDMI port right now on my laptop for that reason. My guess is this applies to desktops that also have Core i5 processors with onchip graphics as well as dedicated graphics cards. How would they go about solving the problem?

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• apache2 is making my amazon ec2 unavailable, any ideas?

  - by Tim

  I have a web server running on a EC2 c1.medium intance. The instance is running on ubuntu, with apache2 and mysql.The ubuntu and apache version are the next; Ubuntu DISTRIB_ID=Ubuntu DISTRIB_RELEASE=11.04 DISTRIB_CODENAME=natty DISTRIB_DESCRIPTION="Ubuntu 11.04" Apache2 Server version: Apache/2.2.17 (Ubuntu) Server built: Feb 22 2011 18:33:02 Sometimes randomly, my server "hangs up", I cannot connect to it using normal web access or ssh access. If I reboot the instance it reboots fine, the amazon system log doesn't show anything weird, but the problem persists The only way to solve it its stopping the instance, and start it again. I think that the problem its has something to do with apache, because the last lines of the error log lists: normal errors [Sun Jun 19 06:25:09 2011] [notice] Apache/2.2.17 (Ubuntu) PHP/5.3.5-1ubuntu7.2 with Suhosin-Patch configured -- resuming normal operations nobody cant connetc... no more erros until i stop and start the instance normal errors [Wed Jun 22 14:21:18 2011] [notice] Apache/2.2.17 (Ubuntu) PHP/5.3.5-1ubuntu7.2 with Suhosin-Patch configured -- resuming normal operations nobody cant connetc... no more erros until i stop and start the instance Can somebody please help me?

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• Issues with forwarding Iptables

  - by Ricardo Rios

  I have some issues with my redirectioning lines on iptables, it seems it does not work, any help will be appreciated iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE echo 1 > /proc/sys/net/ipv4/ip_forward iptables -t nat -A POSTROUTING -s 192.168.2.0/24 -o eth0 -j SNAT --to 10.10.10.1 iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 80 -j DNAT --to 10.10.10.1:8080 iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 8080 iptables -t nat -A PREROUTING -d 200.59.189.125 -p tcp --dport 8081 -j DNAT --to 192.168.2.51:8081 iptables -t nat -A PREROUTING -d 200.59.189.125 -p tcp --dport 34551 -j DNAT --to 192.168.2.51:8081 iptables -t nat -A PREROUTING -d 200.59.189.125 -p tcp --dport 8082 -j DNAT --to 192.168.2.52:8082 iptables -t nat -A PREROUTING -d 200.59.189.125 -p tcp --dport 34552 -j DNAT --to 192.168.2.52:8082 iptables -t nat -A PREROUTING -d 200.59.189.125 -p tcp --dport 8083 -j DNAT --to 192.168.2.53:8083 iptables -t nat -A PREROUTING -d 200.59.189.125 -p tcp --dport 34553 -j DNAT --to 192.168.2.53:8083 iptables -t nat -A PREROUTING -d 200.59.189.125 -p tcp --dport 8084 -j DNAT --to 192.168.2.54:8084 iptables -t nat -A PREROUTING -d 200.59.189.125 -p tcp --dport 34554 -j DNAT --to 192.168.2.54:8084 iptables -t nat -A PREROUTING -d 200.59.189.125 -p tcp --dport 8085 -j DNAT --to 192.168.2.55:8085 iptables -t nat -A PREROUTING -d 200.59.189.125 -p tcp --dport 34555 -j DNAT --to 192.168.2.55:80 echo Ejecutadas Reglas del Firewall

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• dpkg behaving strangely?

  - by Tom Henderson

  When I use apt to get a package, I have been receiving the same error message. Here is an example trying to install wicd (which is already installed): Reading package lists... Building dependency tree... Reading state information... wicd is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded. 3 not fully installed or removed. After this operation, 0B of additional disk space will be used. Setting up tex-common (2.06) ... debconf: unable to initialize frontend: Dialog debconf: (Dialog frontend requires a screen at least 13 lines tall and 31 columns wide.) debconf: falling back to frontend: Readline Running mktexlsr. This may take some time... done. No packages found matching texlive-base. dpkg: error processing tex-common (--configure): subprocess installed post-installation script returned error exit status 1 dpkg: dependency problems prevent configuration of texlive-binaries: texlive-binaries depends on tex-common (>= 2.00); however: Package tex-common is not configured yet. dpkg: error processing texlive-binaries (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of dvipng: dvipng depends on texlive-base-bin; however: Package texlive-base-bin is not installed. Package texlive-binaries which provides texlive-base-bin is not configured yet. dpkg: error processing dvipng (--configure): dependency problems - leaving unconfigured No apport report written because the error message indicates its a followup error from a previous failure. No apport report written because the error message indicates its a followup error from a previous failure. Errors were encountered while processing: tex-common texlive-binaries dvipng E: Sub-process /usr/bin/dpkg returned an error code (1) I'm not sure if this is a problem with apt or with dpkg, but it certainly doesn't look good!

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• File saving disabled 'Saving has been disabled by system admin'

  - by Gubuntu

  I have coded my own html website recently, and today wished to add a Google calender object to it. I have not put this website on the web because it is for my own personal use and I can't buy a domain. So I just have a folder on my pc that I load the index.html from now and then. As I was saying, today I got an error while trying to save the Google calender object in. I am system admin on my PC, in fact no one else uses but me, except when I have friends round, but for once my PC seems to think I'm some standard account user, because I couldn't save. I thought of clicking close and seeing if it came up with save as, but it didn't, it said 'Are you sure you want to close without saving?' or something along the lines of that, and 'Saving has been disabled by your system admin.' I couldn't do anything. I tried looking at the settings of the file, and it had me as read only in one of the selections, so I changed that to read & write, but to no avail. I did not save as root when I last edited the file, so I don't get what's going on. Help! P.S. This is on Ask Ubuntu not Superuser because it is on my Ubuntu PC and it appears to be a problem with Ubuntu not root or hardware.

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• How do I properly set up and secure a production LAMP Server?

  - by Niklas

  It's very hard to find comprehensive information on this subject. Either I found short tutorials on how you perform the installation, as simple as "apt-get install apache2", or outdated tutorials. So I was hoping I could get some professional information from my fellow members of the Ubuntu community :D I have performed a normal Ubuntu Server 11.04 with LAMP, SAMBA and SSH installed through the system installation. But I'm having some trouble setting up virtual hosts and to make the system secure enough to expose the server to the web. I've somewhat followed this tutorial this far. I have 3 sites in /etc/apache2/sites-available which all looks like this except for different site names: <VirtualHost example.com> ServerAdmin webmaster@localhost ServerAlias www.edunder.se DocumentRoot /var/www/sites/example CustomLog /var/log/apache2/www.example.com-access.log combined </VirtualHost> And I have enabled them with the command a2ensite so I have symbolic links in /etc/apache2/sites-enabled. My /etc/hosts file has these lines: 127.0.0.1 localhost 127.0.1.1 Ubuntu.lan Ubuntu 127.0.0.1 localhost.localdomain localhost example.com www.example.com 127.0.0.1 localhost.localdomain localhost example2.com www.example2.com 127.0.0.1 localhost.localdomain localhost example3.com www.example3.com And I can only access one of them from the browser (I have lynx installed on the server for testing purposes) so I guess I haven't set them up properly :) How should I proceed to get a secure and proper setup? I also use MySQL and I think that this tutorial will be enough to set up SSH securely. Please help me understanding Apache configuration better since I'm new to setting up my own server (I've only run XAMPP earlier) and please advise regarding how I should setup a firewall as well :D

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• How to share problem solving knowledge in a multiteam group?

  - by jonathan

  I've been working in multiteam groups for as long as I'm a webdeveloper, for me a team can be a lonely soldier or several people, generally a company will have multiple teams working in different projects and once the project is out in the wild, any team can perform the maintenance. This is a small picture since I'm not talking only about project wise knowledge, but "craft wise" knowledge, but it gives the picture of how I'm used to work, so: Since we work on modularised teams, sometimes I feel like the teams are too tightly enclosed in their projects, I've seen cases where after an hour of discussion, someone asked the question aloud and other person totally unrelated answered in a much simpler fashion. The problem is not so simple to solve as people tend not to be available all the time, also sometimes people can't afford the time to go through a problem with the "asker", but could do it alone. I've thought about software based solutions, something in the lines of SE, but I'd like to know other programmers opinions on the subject. EDIT I don't know if this is a wikipedia complex, but I feel that Wikis don't encourage the user to actually ask questions, but rather to write articles, and sometimes we don't know the knowledge we need, before needing it.

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• In a Tower defense game, how to do buffs/debuffs

  - by Gabe

  The question is at the very bottom. If you understand Buffs/Debuffs in tower defense games then you should skip the bulk of this question and go to the bottom (seperated with the long line) I plan on making an IPhone TD game. The fact that its an iPhone game isn't relevant but I am coding in Objective-c with Cocos2D. I am relatively inexperienced in the field of game design so I'm looking for some advice from someone experienced in this field. In tower defense, there are two things that are relevant to my question: towers/enemies (both have their own classes/children). They each have stats like hp, damage, speed, etc. I want to add buffs/defuffs, for instance: Towers A,B and C each have 15 base damage. Tower D would be a buff tower with no damage, a tower with an AOE(area of effect) aura that gives 10% damage to all towers in range. Tower E might slow enemies in its AOE, a debuff. Stuff like that. The same could go for enemies. Enemy A is a boss that has a slow aura that affects towers and slows their base attack speed or something along those lines. So the question is, what would be the most effective way to implement this? If it was just towers then I would just mess around with the tower classes, but since tower classes and enemy classes are both affected, should I make a buff class? TD games can consume quite a bit of memory with large amounts of creeps and towers, and buffs I feel like would also consume quit a bit... So I'm trying to be as effective as possible.

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