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• How to deal with colleagues refuse to follow practices?

  - by Adrian Shum

  I was discussing with another colleague about what we should be used when an DB entity is referring to another. I don't think there is any good reason to break the practice of putting the Primary Key in the referring entity. However, one of my colleague says: "You should use a surrogate key in the entity, but it is better to put the human-readable natural key in the referring entity. As long it is unique, it is fine and it is easier when you are doing support or maintenance job" I know it will works, but obviously it is not a good practice you are putting a non-PK unique column as "foreign key", just for gaining a bit of ease in writing SQL during support as we can have less table join. Though I mentioned the his approach is conceptual incorrect, and causing problem too practically etc, he seems rather trade off correctness in data model in exchange of ease of maintenance. And he said: "I know it is not good practice, but good practice is not golden rule" Honestly I feel frustrated when dealing with something like this. I know there are always case that we should break some rule or practice, but doubtless it is not such case now. What will you when you are facing situation like this? Please assume yourself being a senior developer which is expected to contribute in misc development direction and convention.

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• Where should SQL/DB Queries be encapsulated in a software system?

  - by Stephen Bennet

  I frequently write small applications (either web based or otherwise) that require heavy database usage. i've attempted various ways of handling where to put the actual sql queries (sort of ad-hoc ORM systems). These include: Models that build themselves up - and only allowing SQL to be inside of a model. A sort of factory style method where the models are built by a factory class that is allowed to know about SQL. A third entity that maps models based on their fields/keys into the database and generates SQL code on the fly based on this. Is there a common knowledge of which method is best? Or another way I have missed? Clearly a lot of it will be based on the context of the system itself, which for me is usually to produce lightweight tools or utility frameworks. In experimenting, I've never found any of them that feel intuitively "right" and not clunky, but I also do not want to go for a full framework such as Django or Ruby - both because the tools I create are in a variety of languages and because they usually do not warrant that level of surrounding footprint.

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• How to fix bad Collada produced by FBX?

  - by David

  I tried to use the FBX SDK (2011.3.1) to load FBX files and save them as Collada files in order to be able to import FBX files in Panda3D. Unfortunately the resulting Collada files are not usable for several reasons, among them: There's a Maya specific extra technique diffuse <diffuse> <texture texture="Map__2-image" texcoord="CHANNEL0"> <extra> <technique profile="MAYA"> <wrapU sid="wrapU0">TRUE</wrapU> <wrapV sid="wrapV0">TRUE</wrapV> <blend_mode>ADD</blend_mode> </technique> </extra> </texture> </diffuse> It assigns a texcoord channel name that isn't referenced anywhere else in the file (in the previous code sample, no geometry uses "CHANNEL0"...) Every polygon is exported twice, a first time with a basic material (only diffuse color, specular color, etc.) and a second time with a textured material -- this doubles the number of polygons of each model without any valuable reason Anyway, the resulting Collada file cannot be opened correctly either with OpenCOLLADA or Panda3D's "dae2egg". Anyone has any experience on how to "fix" it and make it understandable by common and well-reputed Collada importers such as OpenCOLLADA?

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• Thumbs Up or Thumbs Down – Intel Debuts Prototype Palm-Reading Tech to Replace Passwords [Poll]

  - by Asian Angel

  This week Intel debuted prototype palm-reading tech that could serve as a replacement for our current password system. Our question for you today is do you think this is the right direction to go for better security or do you feel this is a mistake? Photo courtesy of Jane Rahman. Needless to say password security breaches have been a hot topic as of late, so perhaps a whole new security model is in order. It would definitely eliminate the need to remember a large volume of passwords along with circumventing the problem of poor password creation/selection. At the same time the new technology would still be in the ‘early stages’ of development and may not work as well as people would like. Long-term refinement would definitely improve its performance, but would it really be worth pursuing versus the actual benefits? From the blog post: Intel researcher Sridhar Iyendar demonstrated the technology at Intel’s Developer Forum this week. Waving a hand in front of a “palm vein” detector on a computer, one of Iyendar’s assistants was logged into Windows 7, was able to view his bank account, and then once he moved away the computer locked Windows and went into sleeping mode. How to Get Pro Features in Windows Home Versions with Third Party Tools HTG Explains: Is ReadyBoost Worth Using? HTG Explains: What The Windows Event Viewer Is and How You Can Use It

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• Silverlight Cream for April 30, 2010 -- #852

  - by Dave Campbell

  In this Issue: Michael Washington, Tim Greenfield, Jaime Rodriguez, and The WP7 Team. Shoutouts: Mike Taulty has a pretty complete set of links up for information about VS2010, Silverlight, Blend, Phone 7 Upgrade Christian Schormann announced Blend for Windows Phone: Update Available, and has other links up as well. From SilverlightCream.com: Silverlight Simplified MVVM Modal Popup Michael Washington is demonstrating a modal popup in MVVM and also shows the implementation of a value converter XPath support in Silverlight 4 + XPathPad Tim Greenfield blogged about XPath support in Silverlight 4 and his XPathPad tool... check out what all you can do with it... then go grab it, or the source too! Windows phone capabilities security model Jaime Rodriguez is discussing the WP7 capabilities exposed with the latest refresh such as location services, microphone, media library, gamer services, phone dialoer, push notification... how to code for them and other tips. Windows Phone 7 Series Developer Training Kit The WP7 Team is discussing the WP7 capabilities exposed with the latest refresh such as location services, microphone, media library, gamer services, phone dialoer, push notification... how to code for them and other tips. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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• Spring Roo Database Reverse Engineer with Oracle

  - by kerry

  So you are trying to reverse engineer an Oracle database with roo? Unfortunately, due to licensing restrictions with the Oracle JDBC Drivers, this is a little difficult. There are a few blog posts and forum threads that address the problem but I figured I would post what worked for me here. First, you need to download the appropriate Oracle Drivers from Oracle. The required login, stringent password requirements, nosy registration form, and general system instability made this a pretty painful step for me. I’d also like to say that companies that have password requirements that don’t allow symbols (or any other non-standard requirement) have a special place in my heart. Having to recover my password every time I go to your site virtually guarantees I will only go there when I absolutely have to (not often). Anyways, once you have it downloaded you need to install is with maven: mvn install:install-file -Dfile=~/Downloads/ojdbc6.jar -DgroupId=com.oracle -DartifactId=ojdbc6 -Dversion=11.2.0.3 -Dpackaging=jar -DgeneratePom=true Here comes the fun part. You need to create an osgi wrapper for the driver to install it in roo. Otherwise, roo cannot see the driver. Create a new folder and put the contents of the oracle roo addon pom gist I created. Now build it with maven. You may want to change some of the artifact ids and dependencies for your particular situation. mvn package No open a roo shell and execute the following command: osgi install --url file:///Users/me/my-osgi-project/target/the-jar-it-built.jar Now run (in roo): jpa setup --provider HIBERNATE --database ORACLE dependency remove --groupId com.oracle --artifactId ojdbc14 --version 10.2.0.2 dependency add --groupId com.oracle --artifactId ojdbc6 --version 11.2.0.3 database properties set --key database.driverClassName --value oracle.jdbc.OracleDriver database properties set --key database.url --value jdbc:oracle:thin:@%YOUR_CONNECTION_INFO% database properties set --key database.username --value %YOUR_USERNAME% database properties set --key database.password --value %YOUR_PASSWORD% database reverse engineer --schema %YOUR_SCHEMA% --package ~.domain If you have any package loading exceptions when running the reverse engineer command you can uninstall the osgi bundle, set the package to optional in the osgi pom in the IncludedPackages tag (javax.some.package.*;resolution:=optional) rebuild, then reinstall in roo.

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• Invitation: HARNESSING THE POWER OF FUSION

  - by mseika

  HARNESSING THE POWER OF FUSION: IMPLEMENT AND EXTEND ORACLE'S NEXT-GENERATION APPLICATIONS TO MEET CHANGING CLIENT NEEDSBRUSSELS, BELGIUM, APRIL 23RD, 2012 - APRIL 24th, 2012 The pace of business continues to accelerate. Clients demand solutions that not only meet their needs today, but evolve as quickly as markets, competition and technology. Oracle Fusion Applications can help you to anticipate and satisfy your clients changing needs. Designed for an era of business disruption, they co-exist with existing IT investments, but leverage new technologies (such as mobility and SOA) and breakthrough Cloud computing delivery models as you need them. They also support unprecedented levels of extensibility. To show you how, Oracle's Product Development organization invites you to join an exclusive Fusion Applications presentation and demonstration event for Oracle partners in Europe. This intensive 2-day event will illustrate Fusion Applications capabilities that can enhance ROI for your clients across four major product families: Financials, Procurement and Project Portfolio Management (ERP) Customer Relationship Management (CRM) Human Capital Management (HCM) Supply Chain Management (SCM) Led by Oracle Product Development personnel, this event will also demonstrate how to extend the Fusion Applications user experience, data model, business process and reporting using new Functional Setup and Composer technologies. These can help you address unique client needs without impacting future upgrades. This presentation and demonstration event is intended for consulting business development and delivery personnel. Reserve your Seats today for April 23rd - 24th event To register to this event CLICK HERE For further information please contact me at [email protected]. Best regards Paul ThompsonSenior Director EMEA Alliances and Solutions Partner Programs Markku RouhiainenDirector, Applications Partner EnablementWestern Europe

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• Invitation: HARNESSING THE POWER OF FUSION

  - by mseika

  HARNESSING THE POWER OF FUSION: IMPLEMENT AND EXTEND ORACLE'S NEXT-GENERATION APPLICATIONS TO MEET CHANGING CLIENT NEEDSBRUSSELS, BELGIUM, APRIL 23RD, 2012 - APRIL 24th, 2012 The pace of business continues to accelerate. Clients demand solutions that not only meet their needs today, but evolve as quickly as markets, competition and technology. Oracle Fusion Applications can help you to anticipate and satisfy your clients changing needs. Designed for an era of business disruption, they co-exist with existing IT investments, but leverage new technologies (such as mobility and SOA) and breakthrough Cloud computing delivery models as you need them. They also support unprecedented levels of extensibility. To show you how, Oracle's Product Development organization invites you to join an exclusive Fusion Applications presentation and demonstration event for Oracle partners in Europe. This intensive 2-day event will illustrate Fusion Applications capabilities that can enhance ROI for your clients across four major product families: Financials, Procurement and Project Portfolio Management (ERP) Customer Relationship Management (CRM) Human Capital Management (HCM) Supply Chain Management (SCM) Led by Oracle Product Development personnel, this event will also demonstrate how to extend the Fusion Applications user experience, data model, business process and reporting using new Functional Setup and Composer technologies. These can help you address unique client needs without impacting future upgrades. This presentation and demonstration event is intended for consulting business development and delivery personnel. Reserve your Seats today for April 23rd - 24th event To register to this event CLICK HERE For further information please contact me at [email protected]. Best regards Paul ThompsonSenior Director EMEA Alliances and Solutions Partner Programs Markku RouhiainenDirector, Applications Partner EnablementWestern Europe

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• How do developers verify that software requirement changes in one system do not violate a requirement of downstream software systems?

  - by Peter Smith

  In my work, I do requirements gathering, analysis and design of business solutions in addition to coding. There are multiple software systems and packages, and developers are expected to work on any of them, instead of being assigned to make changes to only 1 system or just a few systems. How developers ensure they have captured all of the necessary requirements and resolved any conflicting requirements? An example of this type of scenario: Bob the developer is asked to modify the problem ticket system for a hypothetical utility repair business. They contract with a local utility company to provide this service. The old system provides a mechanism for an external customer to create a ticket indicating a problem with utility service at a particular address. There is a scheduling system and an invoicing system that is dependent on this data. Bob's new project is to modify the ticket placement system to allow for multiple addresses to entered by a landlord or other end customer with multiple properties. The invoicing system bills per ticket, but should be modified to bill per address. What practices would help Bob discover that the invoicing system needs to be changed as well? How might Bob discover what other systems in his company might need to be changed in order to support the new changes\business model? Let's say there is a documented specification for each system involved, but there are many systems and Bob is not familiar with all of them. End of example. We're often in this scenario, and we do have design reviews but management places ultimate responsibility for any defects (business process or software process) on the developer who is doing the design and the work. Some organizations seem to be better at this than others. How do they manage to detect and solve conflicting or incomplete requirements across software systems? We currently have a lot of tribal knowledge and just a few developers who understand the entire business and software chain. This seems highly ineffective and leads to problems at the requirements level.

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• Oracle is Proud Sponsor of Gartner Security and Risk Management Summit 2011

  - by Troy Kitch

  Oracle will have a very strong presence at this year’s Gartner Security and Risk Management Summit 2011 in Washington D.C., June 20-23. If you plan on being there, please be sure to stop by Oracle booth D and say “hi” to the Security Solution Experts. Please join us for the: Oracle Solution Provider Session Oracle Solution Showcase Receptions Oracle Face to Face Meetings We have some powerful database security demonstrations that we’re showing off. If you haven’t had an opportunity to check out the new Oracle Database Firewall, now’s your chance to learn why it’s the first line of defense in a database security defense in depth strategy. Additionally, Mark Morrison, director of intelligence community information assurance, and Pat Sack, VP of the Oracle national security group, will discuss U.S. government cross-domain secure information sharing. This case study session will explain how Oracle helped the U.S. government consolidate its mission-critical intelligence database infrastructure securely, and the underlying Oracle Database security solutions that can benefit any organization looking to increase business agility and drive down IT costs through database consolidation. Potomac Ballroom B Find out more about the event here. Twitter #GartnerSecurity to join the conversation.

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• Correct level of abstraction for a 3d rendering component?

  - by JohnB

  I've seen lots of questions around this area but not this exact question so apologies if this is a duplicate. I'm making a small 3d game. Well to be honest, it's just a little hobby project and likely won't turn out to be an actual game, I'll be happy to make a nice graphics demo and learn about 3d rendering and c++ design. My intent is to use direct3d9 for rendering as I have some little experience of it, and it seems to meet my requirements. However if I've learned one thing as a programmer it's to ask "is there any conceivable reason that this component might be replaced by a different implmentation" and if the answer is yes then I need to design a proper abstraction and interface to that component. So even though I intend to implment d3d9 I need to design a 3d interface that could be implemented for d3d11, opengl... My question then is what level is it best to do this at? I'm thinking that an interface capable of creating and later drawing Vertex buffers and index buffers Textures Vertex and Pixel "shaders" Some representation of drawing state (blending modes etc...) In other words a fairly low level interface where my code to draw for example an animated model would use the interface to obtain abstract vertex buffers etc. I worry though that it's too low level to abstract out all the functionallity I need efficiently. The alternative is to do this at a higher level where the interface can draw objects, animations, landscapes etc, and implement them for each system. This seems like more work, but it more flexible I guess. So that's my question really, when abstracting out the drawing system, what level of interface works best?

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• CodePlex Daily Summary for Friday, October 11, 2013

  CodePlex Daily Summary for Friday, October 11, 2013Popular ReleasesStackBuilder: StackBuilder 1.0.17.0: Corrected minor bug in box/case analysisPowerShell App Deployment Toolkit: PowerShell App Deployment Toolkit v3.0.6: Added PersistPrompt parameter to Show-InstallationWelcome and Show-InstallationPrompt. Prompt window is persistently returned to center screen after interval specified in config file (default 10 seconds). For Show-InstallationWelcome, this only takes effect if deferral is not available to user. The user will have no option but to respond to the prompt - resistance is futile! Added example advanced Office 2010 deployment script Asynchronous actions now write to the same log file as synchro...XrmServiceToolkit - A Microsoft Dynamics CRM 2011 & CRM 2013 JavaScript Library: XrmServiceToolkit 2.0.0 for CRM 2011 and CRM 2013: Version: 2.0.0 (beta) Date: October, 2013 Dependency: JSON2, jQuery (latest or 1.7.2 above) ---NOTE---Due to the changes for CRM 2013, please use the attached version of JSON2 and jQuery Tested Platform: IE10, latest Chrome, latest FireFox Tested CRM Server: CRM 2013 on-premise RTM, CRM 2013 online, CRM 2011 with RU15 Changes: New Behavior - XrmServiceTookit.Soap.Fetch parameters change to work with asynchronous callback compared to 1.4.2 beta: XrmS...MoreTerra (Terraria World Viewer): MoreTerra 1.11.3: =========== =New Features= =========== New Markers added for Plantera's Bulb, Heart Fruits and Gold Cache. Markers now correctly display for the gems found in rock debris on the floor. =========== =Compatibility= =========== Fixed header changes found in Terraria 1.0.3.1Dynamics AX 2012 R2 Kitting: First Beta release of Kitting: First Beta release of Kitting Install by using XPO or Models.C# Intellisense for Notepad++: Release v1.0.8.0: - fixed document formatting artifacts To avoid the DLLs getting locked by OS use MSI file for the installation.CS-Script for Notepad++ (C# intellisense and code execution): Release v1.0.8.0: - fixed document formatting artifacts To avoid the DLLs getting locked by OS use MSI file for the installation.Generic Unit of Work and Repositories Framework: v2.0: Async methods for Repostiories - Ivan (@ifarkas) OData Async - Ivan (@ifarkas) Glimpse MVC4 workig with MVC5 Glimpse EF6 Northwind.Repostiory Project (layer) best practices for extending the Repositories Northwind.Services Project (layer), best practices for implementing business facade Live Demo: http://longle.azurewebsites.net/Spa/Product#/list Documentation: http://blog.longle.net/2013/10/09/upgrading-to-async-with-entity-framework-mvc-odata-asyncentitysetcontroller-kendo-ui-gli...Media Companion: Media Companion MC3.581b: Fix in place for TVDB xml issue. New* Movie - General Preferences, allow saving of ignored 'The' or 'A' to end of movie title, stored in sorttitle field. * Movie - New Way for Cropping Posters. Fixed* Movie - Rename of folders/filename. caught error message. * Movie - Fixed Bug in Save Cropped image, only saving in Pre-Frodo format if Both model selected. * Movie - Fixed Cropped image didn't take zoomed ratio into effect. * Movie - Separated Folder Renaming and File Renaming fuctions durin...Ghostscript.NET: Ghostscript.NET v.1.1.1.: v.1.1.1. fixed problem in GhostscriptRasterizer and GhostscriptViewer when MediaBox contains negative llx or lly values. (problem reported by "Prasenjit Das"). added GhostscriptPngDevice, a friendly output device class with all png devices related switches. (GhostscriptPngDevice supports: png16m, pngalpha, pnggray, png256, png16, pngmono, pngmonod). added GhostscriptJpegDevice, a friendly output device class with all jpeg devices related switches. (GhostscriptJpegDevice supports: jpeg, jp...xFunc: xFunc 2.7.3: Fixed memory leak. Small fixes.SmartStore.NET - Free ASP.NET MVC Ecommerce Shopping Cart Solution: SmartStore.NET 1.2.0: HighlightsMulti-store support "Trusted Shops" plugins Highly improved SmartStore.biz Importer plugin Add custom HTML content to pages Performance optimization New FeaturesMulti-store-support: now multiple stores can be managed within a single application instance (e.g. for building different catalogs, brands, landing pages etc.) Added 3 new Trusted Shops plugins: Seal, Buyer Protection, Store Reviews Added Display as HTML Widget to CMS Topics (store owner now can add arbitrary HT...Fast YouTube Downloader: Youtube Downloader 2.1: Youtube Downloader 2.1NuGet: NuGet 2.7.1: Released October 07, 2013. Release notes: http://docs.nuget.org/docs/release-notes/nuget-2.7.1 Important note: After downloading the signed build of NuGet.exe, if you perform an update using the "nuget.exe update -self" command, it will revert back to the unsigned build.Mugen MVVM Toolkit: Mugen MVVM Toolkit 2.0: IntroductionMugen MVVM Toolkit makes it easier to develop Silverlight, WPF, WinRT and WP applications using the Model-View-ViewModel design pattern. The purpose of the toolkit is to provide a simple framework and set of tools for getting up to speed quickly with applications based on the MVVM design pattern. The core of Toolkit contains a navigation system, windows management system, models, validation, etc. Mugen MVVM Toolkit contains all the MVVM classes such as ViewModelBase, RelayCommand,...Office Ribbon Project (under active development): Ribbon (07. Oct. 2013): Fixed Scrollbar Bug if DropDown Button is bigger than screen Added Office 2013 Theme Fixed closing the Ribbon caused a null reference exception in the RibbonButton.Dispose if the DropDown was not created yet Fixed Memory leak fix (unhooked events after Dispose) Fixed ToolStrip Selected Text 2013 and 2007 for Blue and Standard themescmdradio: v0.1.1: Default download in win32. For other OS see here. This is alpha version. Please report all bugs.Squiggle - A free open source LAN Messenger: Squiggle 3.3 Alpha: Allow using environment variables in configuration file (history db connection string, download folder location, display name, group and message) Fix for history viewer to show the correct history entries History saved with UTC timestamp This is alpha release and not recommended for use in productionVidCoder: 1.5.7 Beta: Updated HandBrake core to SVN 4819. About dialog now pulls down HandBrake version from the DLL. Added a confirmation dialog to Stop if the encode has been going on for more than 5 minutes. Fixed handling of unicode characters for input and output filenames. We now encode to UTF-8 before passing to HandBrake. Fixed a crash in the queue multiple titles dialog. Added code to rescue tool windows which get placed outside of the visible screen area.Wsus Package Publisher: Release v1.3.1310.05: Enhance the "Reboot Remote Computers", by adding a timer before the reboot occure. So that remote users can save their documents and close applications. You can also add a message to be display. In 'Tools'->'Settings'-> Misc Tab, you can set a default message. Enhance the "Compare Computers against AD", by choosing OUs to include in the comparison.New ProjectsA fork of the RPG Stendhal: Stendhal is a multiplayer online adventures game developed using the Arianne game development system. Stendhal is written using Java 6 and Java2D environment.Board Game Up: Welcome to the codeplex of the Board Game Up website. This contains the entire source code for www.boardgameup.com, the free board game meet up website.Business Information Organizer System: Goal every aspect of small business: services, inventory, education, finance, and heath. Must support every language and country.CRM 2011 to 2013 Icon Upgrader: This application allows you to automatically upgrade CRM 2011 icons to CRM 2013 icons. This application converts entity icons into grey scale.Data Access: CQRS Highway: Command Query Responsibility Segregation pattern for data access.djtest001: this is a summary Test1DNN Evoq Social Invitation Registration: Invitation and Registration module for DNN Evoq Social.Dynamics AX 2012 R2 Kitting: Dynamics AX 2012 R2 - Kitting. A solution for creating and using Kit's on salesorders.IlluminatiEngine: This is a 3D deferred lighting engine, it has skinned mesh animation as well as instanced mesh (including skinned) and a few post processing effects, DoF, etc..jean1011jabbrchang: wJessWork: for now let us make it emptyKiller Core: Starquake re makeKinect Stream Saver Application: The application allows users to display and save the Kinect data streams. The Kinect Stream Saver application is based on the KinectExplorer-D2D ( C++) sample.LUA for Windows CE: LUA porting to Windows CE devices.OpenDespatch for Peoplevox: OpenDespatch is an add-on for Peoplevox to complete despatch using external carriers such as DPD and RM-DMO. Prontuário Eletrônico: Projeto para cadeira de Projeto de Desenvolvimento de software do curso de sistemas de informação que visa a unificação do prontuário médicoRiver Niles Operating System: The project is a research of C# language program , that will be cover to a full Operating SystemSocketIO4WinRT.Client: This is a port of the SocketIO4Net.Client project, to run on WinRT (Windows 8) for C# users.SQL Data: SQL Data is an ORM for C# without any of the bloat.Task Factory Bug Sample: This project is used to demonstrate a bug in .NET 4.0 Runtime for Task Factory.Team Manticore Student System: Student system applicationVccDryad: VccDryad aims at extending VCC with proof strategies that enable automated verification of C programs that manipulate complex data structures. X0oo0Z: X0oo0ZYT: mouse move

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• How to prevent 2D camera rotation if it would violate the bounds of the camera?

  - by Andrew Price

  I'm working on a Camera class and I have a rectangle field named Bounds that determines the bounds of the camera. I have it working for zooming and moving the camera so that the camera cannot exit its bounds. However, I'm a bit confused on how to do the same for rotation. Currently I allow rotating of the camera's Z-axis. However, if sufficiently zoomed out, upon rotating the camera, areas of the screen outside the camera's bounds can be shown. I'd like to deny the rotation assuming it meant that the newly rotated camera would expose areas outside the camera's bounds, but I'm not quite sure how. I'm still new to Matrix and Vector math and I'm not quite sure how to model if the newly rotated camera sees outside of its bounds, undo the rotation. Here's an image showing the problem: http://i.stack.imgur.com/NqprC.png The red is out of bounds and as a result, the camera should never be allowed to rotate itself like this. This seems like it would be a problem with all rotated values, but this is not the case when the camera is zoomed in enough. Here are the current member variables for the Camera class: private Vector2 _position = Vector2.Zero; private Vector2 _origin = Vector2.Zero; private Rectangle? _bounds = Rectangle.Empty; private float _rotation = 0.0f; private float _zoom = 1.0f; Is this possible to do? If so, could someone give me some guidance on how to accomplish this? Thanks. EDIT: I forgot to mention I am using a transformation matrix style camera that I input in to SpriteBatch.Begin. I am using the same transformation matrix from this tutorial.

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• Working with documents and SharePoint - Best practices

  - by KunaalKapoor

  Follow these simple guidelines to make collaboration using SharePoint easier:1. File Name:While it is allowed to use spaces in your filename (and maybe it seems even logical to do so), don’t use them if your file will end up (or is born on) SharePoint. When you use the “download a copy” functionality, SharePoint will replace the spaces with an “_”. This might (will) result in inconsistency when you upload the “same” file again, since SharePoint will see this as a different file (since the filename is different). I recommend using a filename with Capitalization style naming guideline. For instance: the document “Overall governance model.docx” would be named “OverallGovernanceModel.docx”Use the TITLE field in the office applications to give your document a title (and subtitle and keywords, .) The title column can be used in a view in a library. You can get to the document properties by clicking on 'Office Button/Prepare/Properties'. (Office 2007). This is metadata that is stored with the document, and will remain in the document (even if you exchange this document via e-mail, via an external hard drive). The filename cannot be longer than 128 characters. (and that is IMHO far beyond reasonable) You cannot use any of these characters: ” # % & * : < > ? \ / { | } ~ 2. Versioning:SharePoint has a built-in versioning system. You can work with major (published) versions, and minor (draft) versions. Of each of these two document types, you can store a numbers of versions that are kept. Watch out, each version is saved, not only the delta between 2 versions, and this counts to your Site Collection Quota. (Example: you have a Word document with a size of 2 MB. When you keep 5 Drafts this will result in storing (and consuming) 10 MB.So, don’t call your document “NewUserAccountProcessDRAFTv1.docx”, but “NewUserAccountProcess.docx” and use versioning setting in your library.You can enable views on your library to display the version number.You can enable the version number to be displayed in a Word document.3. Use MetadataUse metadata to assign other properties to documents, so it can be easily identified, sorted- or grouped by.

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• Brand new battery is 100% charged but at 0% capacity

  - by Chris Conway

  I just bought a brand new battery to replace one that had seemingly died. I followed the instructions that came with the battery and charged it overnight, then ran my computer on battery until it was in a critical state and charged it overnight again. Now the battery appears to be 100% charged and at the same time at 0% capacity—when it's plugged in it doesn't charge and when it's unplugged the computer immediately goes into low power mode. I've taken the battery out and checked the contacts. I've rebooted the system with and without the battery. Nothing seems to help. I'm not sure if I should blame the battery, the laptop, the charger, or the power management software for this state of affairs. The obvious answer would be the battery but I bought this battery because another year-old battery exhibited similar behavior—I assumed it was dead and a Dell tech came to the same conclusion. I'm loathe to order another new battery without first exploring other explanations. What can I do to diagnose this problem? Here's the /proc info: $ cat /proc/acpi/battery/BAT0/state present: yes capacity state: critical charging state: charged present rate: 1 mA remaining capacity: 0 mAh present voltage: 9754 mV $ cat /proc/acpi/battery/BAT0/info present: yes design capacity: 6600 mAh last full capacity: 6789 mAh battery technology: rechargeable design voltage: 11100 mV design capacity warning: 660 mAh design capacity low: 200 mAh cycle count: 0 capacity granularity 1: 66 mAh capacity granularity 2: 66 mAh model number: DELL WK serial number: 4043 battery type: LION OEM info: SMP

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• Trying to install Canon iP7250 printer

  - by Chris Burmajster

  I'm trying to install my Canon iP7250 printer on a fresh install of 13:10 64bit. Last time I installed it successfully via http://handytutorial.com/install-canon-printer-driver-for-ubuntu-13-04-12-10-12-04 which entailed adding a repository via the terminal and then updating it. I then opened Synaptic and searched for my printer model and Synaptic then installed everything. This time round I added the repositories but the update failed with the following error: Failed to fetch http://ppa.launchpad.net/michael-gru...amd64/Packages 404 Not Found Failed to fetch http://ppa.launchpad.net/michael-gru...-i386/Packages 404 Not Found Some index files failed to download. They have been ignored, or old ones used instead. An internet search failed to find another way of installing this printer so I'm stuck. My laptop also runs 64 bit 13:10 and the printer works, as I installed it months ago. Is there any way I can take something off that to use on this new machine? Thank you all in advance P.S. I have just found and downloaded the official Canon driver from the Canon website and extracted it, but I don't know how to install it.

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• Implementing game rules in a tactical battle board game

  - by Setzer22

  I'm trying to create a game similar to what one would find in a typical D&D board game combat. For mor examples you could think of games like Advance Wars, Fire Emblem or Disgaea. I should say that I'm using design by component so far, but I can't find a nice way to fit components into the part I want to ask. I'm struggling right now with the "game rules" logic. That is, the code that displays the menu, allows the player to select units, and command them, then tells the unit game objects what to do given the player input. The best way I could thing of handling this was using a big state machine, so everything that could be done in a "turn" is handled by this state machine, and the update code of this state machine does different things depending on the state. This approach, though, leads to a large amount of code (anything not model-related) to go into a big class. Of course I can subdivide this big class into more classes, but it doesn't feel modular and upgradable enough. I'd like to know of better systems to handle this in order to be able to upgrade the game with new rules without having a monstruous if/else chain (or switch / case, for that matter). So, any ideas? I'd also like to ask that if you recommend me a specific design pattern to also provide some kind of example or further explanation and not stick to "Yeah you should use MVC and it'll work".

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• Designing a Database Application with OOP

  - by Tim C

  I often develop SQL database applications using Linq, and my methodology is to build model classes to represent each table, and each table that needs inserting or updating gets a Save() method (which either does an InsertOnSubmit() or SubmitChanges(), depending on the state of the object). Often, when I need to represent a collection of records, I'll create a class that inherits from a List-like object of the atomic class. ex. public class CustomerCollection : CoreCollection<Customer> { } Recently, I was working on an application where end-users were experiencing slowness, where each of the objects needed to be saved to the database if they met a certain criteria. My Save() method was slow, presumably because I was making all kinds of round-trips to the server, and calling DataContext.SubmitChanges() after each atomic save. So, the code might have looked something like this foreach(Customer c in customerCollection) { if(c.ShouldSave()) { c.Save(); } } I worked through multiple strategies to optimize, but ultimately settled on passing a big string of data to a SQL stored procedure, where the string has all the data that represents the records I was working with - it might look something like this: CustomerID:34567;CurrentAddress:23 3rd St;CustomerID:23456;CurrentAddress:123 4th St So, SQL server parses the string, performs the logic to determine appropriateness of save, and then Inserts, Updates, or Ignores. With C#/Linq doing this work, it saved 5-10 records / s. When SQL does it, I get 100 records / s, so there is no denying the Stored Proc is more efficient; however, I hate the solution because it doesn't seem nearly as clean or safe. My real concern is that I don't have any better solutions that hold a candle to the performance of the stored proc solution. Am I doing something obviously wrong in how I'm thinking about designing database applications? Are there better ways of designing database applications?

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• Dalvik + Java licensing question

  - by Andrew Bate

  This is a licensing question about the Dalvik and J2SE core libraries. In particular the license governing java.util.concurrent.SynchronousQueue. The license header of the class in the JDK source states that it is GPLv2 only (see grepcode). However, the same file in the Dalvik core libraries seems to be governed by the Apache 2 license only (see android source). How is this possible? I didn't think you could take GPLv2 source and re-license it as Apache 2. (It's obvious they did: a comment above the Java Doc even says "removed link to collections framework docs"!) I'm asking because I have a GPLv3 project and would like to include a derivative work of some source from the core libraries (either Dalvik or J2SE) but publish it under GPLv3. I thought I could do this with Apache 2, but not GPLv2. I know that the J2SE class source is itself derivative work from public domain source, but the changes from the original are substantial. (The original is available at gee.cs.oswego.edu if you are interested.) Therefore the android source really is just a copy of the J2SE source, but published under Apache 2 instead of GPLv2. Is Google really allowed to do this?

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• Looking for a comfortable Laptop Cooling Pad? Repurpose a pillow as a Laptop Cooling Pad

  - by Gopinath

  Update: This idea sucks as using a pillow blocks laptop cooling fans and air flow, which in turn would damage the laptop. Thanks Vijay I’ve a HP Pavilion laptop which turns hot quickly and most of the time I would not be able to keep it on my lap after 30 minutes of usage. It’s the same case with my DELL laptop and not to blame any specific brand or model. Most of the budget laptops generate lot of heat and tough to keep them on laps for a long time. They burn skin and the irritation sense leaves me with no option other than throwing them away. While searching for options to beat the heat I found Laptop Cooling Pads on Amazon.They attach to the base of laptops and act like a heat shield/sink to protect thighs from the heat generated by laptops. They are available from around $7 and goes up to $100 depending on the features they offer. After reading reviews I selected a trendy looking and comfortable laptop cooling pad and it was around $25 before shipping and taxes. I’m going to buy one of the cooling pads from Amazon. On a second thought I started searching for options to repurpose any of the house hold items as a laptop cooling pad and save money. The option suggested by wife is to repurpose an old pillow as a laptop cooling pad.  Here is my laptop cooling pad Wow! That is a nice suggestion which saved my thighs from laptop heat as well my wallet from spending $25. Even if I’ve to buy a new pillow I would be able to pickup cheap one from Wal-Mart store for as low as $2.  Also I find it is very comfortable to use a pillow as a Laptop Cooling Pad as they are flexible and automatically adjust to the shape of my body.

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• How to avoid big and clumpsy UITableViewController on iOS?

  - by Johan Karlsson

  I have a problem when implementing the MVC-pattern on iOS. I have searched the Internet but seems not to find any nice solution to this problem. Many UITableViewController implementations seems to be rather big. Most example I have seen lets the UITableViewController implement UITableViewDelegate and UITableViewDataSource. These implementations are a big reason why UITableViewControlleris getting big. One solution would be to create separate classes that implements UITableViewDelegate and UITableViewDataSource. Of course these classes would have to have a reference to the UITableViewController. Are there any drawbacks using this solution? In general I think you should delegate the functionality to other "Helper" classes or similar, using the delegate pattern. Are there any well established ways of solving this problem? I do not want the model to contain to much functionality, nor the view. A believe that the logic should really be in the controller class, since this is one of the cornerstones of the MVC-pattern. But the big question is; How should you divide the controller of a MVC-implementation into smaller manageable pieces? (Applies to MVC in iOS in this case) There might be a general pattern for solving this, although I am specifically looking for a solution for iOS. Please give an example of a good pattern for solving this issue. Also an argument why this solution is awesome.

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• The Apple Passbook

  - by David Dorf

  In a previous job I worked on smart card systems.  Our vision was to replace the physical wallet with a chip card that contained stored value, credit cards, and loyalty cards.  The technology was up to the task, but the business model never worked out.  When all those things go onto a single card, who owns the card and maintains the applications?  Each bank wanted their own card with branding, so instead of consolidating lots of cards onto one, we ended up with the same number of cards, just more expensive chip cards.  The Costanza wallet would not die. More recently I've been able to move lots of these cards into iOS apps using products like CardStar, TripIt, and Fandango.  I guess moving from physical to digital is progress, but still no consolidation.  But this week Apple announced its Passbook, an iOS feature that consolidates boarding passes, loyalty cards, and movie tickets.  Another step in the right direction. We've been waiting for Apple to announce a NFC solution to take advantage of the 400 million credit cards it stores in iTunes for its customers.  Perhaps Passbook is the first step in that direction.  It wouldn't take much to add credit cards to Passbook, then enable secure transfer of the track data using a NFC equipped iPhone.  I've got to think this has to be part of the larger vision, but of course Apple is very secretive. I think the steps will be loyalty, coupons, and then payment when it comes to the evolving Passbook.  Retailers should keep an eye on Apple, and expect these things to happen in the Apple stores first.

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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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• Working with Key Flex Fields in OAF

  - by PRajkumar

  1. Create a New Workspace and Project Right click Workspaces and click create New OA Workspace and name it as PRajkumarKFFDemo. Automatically a new OA Project will also be created. Name the project as KFFDemo and package as prajkumar.oracle.apps.fnd.kffdemo   2. Create a New Application Module (AM) Right Click on KFFDemo > New > ADF Business Components > Application Module Name -- KFFAM Package -- prajkumar.oracle.apps.fnd.kffdemo.server   Check Application Module Class: KFFAMImpl Generate JavaFile(s)   3. Create a New View Object (VO) Right click on KFFDemo > New > ADF Business Components > View Object Name -- KFFVO Package -- prajkumar.oracle.apps.fnd.kffdemo.server   Note - The VO is not based on any EO so click next and go to the query section and paste the query   SELECT  code_combination_id FROM    gl_code_combinations_kfv   In Step8 Check Object Class: KFFVOImpl -> Generate Java File -> Bind Variable Accessors   4. Add View Object to Root UI Application Module Right Click on KFFAM > Edit KFFAM > Data Model and shuttle KFFVO from Available View Objects to Data Model   5. Create a New Page Right click on KFFDemo > New > Web Tier > OA Components > Page Name -- KFFPG Package -- prajkumar.oracle.apps.fnd.kffdemo.webui   6. Select the KFFPG and go to the strcuture pane where a default region has been created   7. Select region1 and set the following properties:   Attribute Property ID PageLayoutRN AM Definition prajkumar.oracle.apps.fnd.kffdemo.server.KFFAM Window Title Key Flex Field Demo Window Title Key Flex Field Demo     8. Create Stack Layout Region Under Page Layout Region Right click PageLayoutRN > New > Region   Attribute Property ID MainRN AM Definition stackLayout   9. Create a New Item of type Flex under the Stack Layout Region Right click on MainRN > New > Item Set Following Properties for New Item --   Attribute Property ID KeyFlexItem Item Style Flex Prompt Accounting Key Flex Field Appl Short Name SQLGL Name GL# Type Key View Instance KFFVO1     10. Create Controller for page KFFPG Right Click on PageLayoutRN > Set New Controller Package Name: prajkumar.oracle.apps.fnd.kffdemo.webui Class Name: KFFCO   Write Following Code in KFFCO processRequest   public void processRequest(OAPageContext pageContext, OAWebBean webBean) {  super.processRequest(pageContext, webBean);    OAKeyFlexBean kffId = (OAKeyFlexBean)webBean.findIndexedChildRecursive("KeyFlexItem");    // Set the code combination lov   kffId.useCodeCombinationLOV(true);   //set the structure code for the item key flex    kffId.setStructureCode("FED_AFF");   //Set the attribute name to the item   kffId.setCCIDAttributeName("CodeCombinationId");  //Execute the Query   KFFAMImpl am = (KFFAMImpl)pageContext.getApplicationModule(webBean);   KFFVOImpl vo = (KFFVOImpl)am.findViewObject("KFFVO1");          if(!vo.isPreparedForExecution())   {          vo.executeQuery();   } }   Note -- If you do not want to see the key flex field is merging one then change the code in the controller class as below   kffId.useCodeCombinationLOV(false);   11. Use the below Query to find the Structure Code   SELECT  fif.application_id,                  fif.id_flex_code,                  fif.id_flex_name,                  fif.application_table_name,                   fif.description,                  fifs.id_flex_num,                  fifs.id_flex_structure_code,                  fifse.segment_name,                  fifse.segment_num,                  fifse.flex_value_set_id  FROM     fnd_id_flexs                    fif,                  fnd_id_flex_structures   fifs,                   fnd_id_flex_segments    fifse  WHERE  fif.application_id      = fifs.application_id  AND       fif.id_flex_code         = fifs.id_flex_code  AND       fifse.application_id   = fif.application_id  AND       fifse.id_flex_code      = fif.id_flex_code  AND       fifse.id_flex_num      = fifs.id_flex_num  AND       fif.id_flex_code         LIKE 'GL#' AND       fif.id_flex_name       LIKE 'Accounting Flexfield';   12. Congratulation you have successfully finished. Run Your page and Test Your Work        

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• Blank screen after Switch User or Resume

  - by matt wilkie

  About half the time when I switch users or resume from standby or resume the screen goes blank (black). If I work the cursor keys I can hear the system bell when it gets to the end of the user list. I can also successfully login, going from memory, but screen stays black. Sometimes closing and re-opening the lid will light up the screen again. Pressing the special Function key to enable/disable external monitor connection has no effect [Fn]-[F5],[Fn]-[F6]. If none of the previous work I need to put the computer into hibernation or full power off to restore screen function. If I watch closely when switching users I think I can see the screen initially start to light up and then quickly fade to black. The computer is an Acer Aspire 3500, model ZL6, running Ubuntu 10.10 installed 2 days ago. No proprietary drivers are in use. I'll provide a list of hardware details as soon as I can figure out how to generate that (didn't there used to be an entry for hardware details under the System menu?). Possibly related questions: No resume after Hibernate or Standby When I resume from suspension - the screen is blank Switch user fails to complete successfully For what it's worth, blank after resume also used to happen occasionally when the laptop was running XP-Home, but nowhere near as often, perhaps 6 or 8 times a year. UPDATE: I found System Administration System Testing and ran the Monitor test. It went very very dark, but the window elements could be discerned, and the whole screen flashed (from very very dark to black). On the third repeat of that same test the screen went to full blaupck and stayed there. Moving the mouse, via touchpad, or touch keys did not wake it up again. I had to close the lid and put the computer into hibernate, and press the power button to restore it. UPDATE2: output of lshw: http://pastebin.com/q7n8676r, lspci: http://pastebin.com/6ujzVK4r UPDATE3: sometimes I can restore the screen by flipping to console 1 with ctrl-alt-F1 and then back to graphical with ctrl-alt-F7.

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