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  • C IDE for Mac needed

    - by StasM
    I'm looking for heavy-duty C/C++ IDE for Mac that would satisfy the following criteria: Work with big projects (~5000 files, some of them 100K big) efficiently. Have good navigation both file-based and symbol-based - i.e. "go to file", "go to function" etc. with autocompletion support. Support for "go to declaration/definition" for symbols - functions, structures, etc. Auto-adding new files in folders already in the project. Support for code completion for values, function names, etc. At least rudimentary CPP macro understanding - i.e. #define foo bar then foo() should take me either to #define or to actual bar. I understand full CPP parsing may be hard, but I hope for at least the obvious cases. Support for displaying parameter names/types by function name, preferably - integrated with the previous item, for functions defined in the project. Support for libc would be nice too :) (optional) Cross-project search support (I can manage with grep -r if everything else works) (optional) SVN support, at least to some extent (update, commit, mark updated) Is there such editor around? Free would be nice, but I'm ready to part with some money if it's good enough. I'm using TextMate now but I'm not satisfied with it. Tried Xcode but it seems to not be able to handle a large project - it just crashed...

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  • Semantic Form Markup for Yes or No Questions - Or Should I Tell my Designers to Bugger Off?

    - by sholsinger
    I frequently receive mock-ups of HTML forms with the following prototype: Some long winded yes or no question?   (o) Yes   ( ) No The (o) and ( ) in this prototype represent radio buttons. My personal view is that if the question has only a true or false value then it should be a check box. That said, I have seen this sort of "layout" from almost every designer I've ever worked with. If I were not to question their decision, or question the client's decision, I'd probably mark it up like this: <p class="pseudo_label">Some long winded yes or no question?</p> <input type="radio" name="the_question" id="the_question_yes" value="1"> <label for="the_question_yes" class="after_radio">Yes</label> <input type="radio" name="the_question" id="the_question_no" value="0"> <label for="the_question_no" class="after_radio">No</label> I really don't want to do that. I want to push back and convince them that this should really be a check box and not two radio buttons. But my question is, if I can't convince them – you're welcome to help me try – how should I code that original design requirement such that it is semantic and at least understandable for screen reader users? If I were able to convince my tormentors to change their minds, I would likely code it in the following fashion: <label for="the_question">Some long winded yes or no question?</label> <input type="checkbox" name="the_question" id="the_question" value="1"> What do you think about this issue? Should I push back? Possibly more importantly is either way semantically correct?

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  • I'm learning html and I'm confused as to how href's work. [migrated]

    - by Robolisk
    Okay so i'm learning html right now and soon css. In my html coding I have a section like this for navigation: <div id="header"> <h1>Guild Wars 2 Fanbase</h1> <ol id="navigation"> <li><a href="/">Home</a></li> <li><a href="/facts">Facts</a></li> <li><a href="/gallery">Gallery</a></li> <li><a href="/code">Coding</a> <ul><li><a href="/code/line">Lines</a></li> <li><a href="/code/comment">Comment Lines</a></li> </ul> </li> </ol></div> Now when I open up this .html file this is all layed out the way I want it too look (the mark up that is). My question is this, when I click on a link on this site (this site being this code) I get an a error saying this webpage is not found, but of course. But how do I create it so I can have the web pages working together? I'm not sure how to word it correctly. Like, do I create another .html file in the same directory so somehow when I click the link it reads from the second .html file? If you not sure what I'm asking, just let me know and I'll try to be more specific. Thank you for your help (: excuse my mistakes in grammar, not the worlds best in English, trying my best (:

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  • Oracle Solaris 11 Summit Day at the LISA Conference 2011-Register Today!

    - by Terri Wischmann
    We have successfully launched and shipped Oracle Solaris 11!  Come to the LISA 2011 Conference in Boston, MA to learn about all the latest and greatest Oracle Solaris 11 technologies. On Tuesday, 12/6/11 we are hosting our 2nd annual Oracle Solaris 11 Summit Day! It's a Free full day of sessions covering the latest OS technologies, and a chance for you to meet key members of the Oracle Solaris engineering team as they conduct a deep-dive exploration of core Solaris features. See agenda below -Register Today!!  Time  Topic  Presenter  9:00 -9:30 am  Oracle Solaris 11 Strategy  Markus Flierl  9:30 - 11:00 am  Next Generation OS Lifecycle Management with Oracle Solaris 11  Dave Miner/Bart Smaalders  11:00 am  - 12:00 pm  Data Management with ZFS  Mark Maybee  12:00 - 1:00 pm  LUNCH  All  1:00 - 2:30 pm Oracle Solaris Virtualization and Oracle Solaris Networking  Mike Gerdts/Sebastian Roy 2:30 - 3:15 pm Security in your Oracle Solaris Cloud Environment  Glenn Faden  3:15 - 3:30 pm  BREAK  All  3:30 - 4:15 pm Oracle Solaris - The Best Platform to run your Oracle Applications David Brean  4:15 - 5:00 pm Oracle Solaris Cluster - HA in the Cloud Gia-Khahn Nguyen  5:00 - 6:30 pm  Reception  All

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  • Your personal backlog

    - by johndoucette
    Whenever I start a new project or come in during a hectic time to help salvage a deliverable – there is always a backlog. Generating the backlog can be a daunting exercise, but worth the effort. Once I have a backlog, I feel in control and the chaos begins to quell. In your everyday life, you too should keep a backlog. Here is how I do it; 1. Always carry a notebook 2. Start each day marking a new page with today’s date 3. Flip to yesterday’s notes and copy every task with an empty checkbox next to it, to the new empty page (today) 4. As the day progresses and you go to meetings, do your work, or get interrupted to do something…jot it down in today’s page and put an empty checkbox next to it. If you get it done during the day, awesome. Mark it complete. Keep carrying and writing every task to each new day until it is complete. Maybe one day, you will have an empty backlog and your sprint will be complete!

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  • Oracle Database 12c is Generally Available

    - by Thanos
    Oracle Database 12c, a major release of Oracle’s flagship product, is generally available as of 25 June 2013. Oracle Database 12c introduces a breakthrough, new multitenant architecture enabling customers to create multiple, pluggable databases for database consolidation and cloud deployments. Customers will realize greater efficiency and flexibility through innovations such as Oracle Multitenant option and Automatic Data Optimization with Heat Map, for compressing and tiering data at a higher density. These unique advancements, combined with major enhancements in availability, security, and big data support, make Oracle Database 12c the ideal platform for private and public cloud deployments. As of 25/06/2013, the product is available for download on Linux x86-64, Solaris Sparc64 and Solaris (x86-64) via Oracle Technology Network. A news release is planned for July 1st, and an external launch webcast, Plug into the Cloud with Oracle Database 12c, featuring Mark Hurd, Andy Mendelsohn, Tom Kyte and other experts is planned for July 10th. Open here in New Window Everybody can register for the launch webcast here and register to attend global in-person events here. Resources: www.oracle.com/database www.oracle.com/databaseoptions Oracle Partner Network Database Knowledge Zone Open in Google Docs Viewer Open link in new tab Open link in new window Open link in new incognito window Download file Copy link address Edit PDF File on PDFescape.com

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  • game multiplayer service development

    - by nomad
    I'm currently working on a multiplayer game. I've looked at a number of multiplayer services(player.io, playphone, gamespy, and others) but nothing really hits the mark. They are missing features, lack platform support or cost too much. What I'm looking for is a simple poor man's version of steam or xbox live. Not the game marketplace side of those two but the multiplayer services. User accounts, profiles, presence info, friends, game stats, invites, on/offline messaging. Basically I'm looking for a unified multiplayer platform for all my games across devices. Since I can't find what I'm planning to roll my own piece by piece. I plan to save on server resources by making most of the communication p2p. Things like game data and voice chat can be handled between peers and the server keeps track of user presence and only send updates when needed or requested. I know this runs the risk of cheating but that isn't a concern right now. I plan to run this on a Amazon ec2 micro server for development then move to a small to large instance when finished. I figure user accounts would be the simplest to start with. Users can create accounts online or using in game dialog, login/out, change profile info. The user can access this info online or in game. I will need user authentication and secure communication between server and client. I figure all info will be stored in a database but I dont know how it can be stored securely and accessed from webserver and game services. I would appreciate and links to tutorials, info or advice anyone could provide to get me started. Any programming language is fine but I plan to use c# on the server and c/c++ on devices. I would like to get started right away but I'm in no hurry to get it finished just yet. If you know of a service that already fits my requirements please let me know.

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  • SL150 Modular Tape Library Demo Equipment Purchase Opportunity Limited Special Pricing on Demo Configuration

    - by Cinzia Mascanzoni
    Oracle is pleased to announce that, for a limited time, Oracle VADs may purchase special SL150 Modular Tape Library configurations for demonstration purposes at a significantly reduced price. Submit your order today for these special SL150 Modular Tape Library configurations and you can start showcasing these products in partner demonstrations and proof-of-concepts. VADs may also sell demo units to their VARs so that they may use them in their customer evaluations to help shorten the sales cycle. The offer also allows VARs to sell the demo configuration after a prescribed demonstration period to support the demo product’s cost of ownership. Why wait? Order today! Rules and Guidelines Only authorized VADs are allowed to purchase the special SL150 Modular Tape Library configurations. Purchase time frame is from now until February 28, 2013. Only the predetermined configurations are approved for purchase at the prescribed discounts. Supply is allocated per region and it’s limited. Order MUST be placed via the Oracle Partner Store* (OPS) where applicable. See below for online and offline order processes. If reselling to a VAR, VAD must include the Partner Demonstration Hardware Terms with the order (online via OPS or with offline VAD Ordering Document). Please mark your calendars for the SL150 Modular Tape Library Demo Program webcast on Sept 5th. The objective of this call is to share the details of this demo program with you. For details on how to connect to the webcast, contact your VAD Manager

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  • Podcast Show Notes: Public, Private, and Hybrid Clouds

    - by Bob Rhubart
    This week the OTN ArchBeat Podcast begins a four-part series featuring a panel of some of Oracle's top cloud experts in a conversation about the similarities and differences between, public, private, and hybrid clouds. The Panelists Dr. James Baty Vice President of Oracle’s Global Enterprise Architecture Program, and a frequent speaker at OTN Architect Days and other events. Mark T. Nelson Lead architect for Oracle Cloud and is responsible for designing the infrastructure for Oracle's public Software as a Service, and Platform as a Service offerings. Ajay Srivastava Vice President of Oracle’s On Demand Platform. William Vambenepe Architect for Oracle’s Middleware/Applications Management and Cloud Computing. The Conversation Listen to Part 1: The panel offers an overview of the various flavors of cloud computing. Listen to Part 2 (June 13): Cows in the cloud and the importance of standards. Listen to Part 3 (June 20): Why cloud computing is a paradigm shift -- and why it isn’t. Listen to Part 4 (June 27): Advice on what architects need to know to take advantage of the cloud. Coming Soon Highlights from the Roundtable Discussion at OTN Architect Day in Reston, VA. An expert panel discusses the role of the Cloud Architect. Stay tuned: RSS

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  • ArchBeat Link-o-Rama for 2012-06-15

    - by Bob Rhubart
    URGENT BULLETIN: Disable JRE Auto-Update for All E-Business Suite End-Users All desktop administrators must IMMEDIATELY disable the Java Runtime Environment (JRE) Auto-Update option for all Windows end-user desktops connecting to Oracle E-Business Suite Release 11i, 12.0, and 12.1. WebLogic JMS / AQ bridge with JBoss AS 7 | Edwin Biemond Oracle ACE Edwin Biemond explains "how you can retrieve JMS messages from JBoss with the help of a WebLogic Foreign Server and how to push messages to JBoss AS with the help of a WebLogic JMS Bridge." The Healthy Tension That Mobility Creates | Hernan Capdevila "Mobile device management in the cloud makes good sense," says Hernan Capdevila. "I don't think IT departments should be hosting device management and managing that complexity. It should be a cloud service." OPN: Fusion Middleware Summer Camps in July in Lisbon and Munich For specialized Oracle Partners. Participation is limited to two people per company at each bootcamp. Registration is first come first serve. Take note of the skill requirements and, prerequisites. Podcast: Cows in the Cloud and the importance of standards In part two of a four-part program Cloud experts Jim Baty, Mark Nelson, William Vambenepe, and Ajay Srivastava explain cows in the cloud and talk about the importance of standards. Community members talk about the challenges and opportunities mobile computing presents for IT architects. Apple has sold 55 million iPads since 2010. Gartner expects a 98% increase in tablet sales in 2012, to 118 million. Nielsen reports that smartphones now account for nearly half of all mobile phones in the U.S., a 38% increase over 2011. And the mobile juggernaut is just getting started. Thought for the Day "Why are video games so much better designed than office software? Because people who design video games love to play video games. People who design office software look forward to doing something else on the weekend." — Ted Nelson Source: SoftwareQuotes.com

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  • How to evaluate a user against optimal performance?

    - by Alex K
    I have trouble coming up with a system of assigning a rating to player's performance. Well, technically there is is a trivial rating system, but I don't like it because it would mean assigning negative scores, which I think most players will be discouraged by. The problem is that I only know the ideal number of actions to get the desired result. The worst case is infinite number of actions, so there is no obvious scale. The trivial way I referred to above is to take score = (#optimal-moves - #players-moves), with ideal score being zero. However, psychologically people like big numbers. No one wants to win by getting a mark of 0. I wonder if there is a system that someone else has come up with before to solve this problem? Essentially I wish to score the players based on: How close they've come to the ideal solution. Different challenges will have different optimal number of actions, so the scoring system needs to take that into account, e.g. Challenge 1 - max 10 points, Challenge 2 - max 20 points. I don't mind giving the players negative scores if they've performed exceptionally badly, I just don't want all scores to be <=0

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  • Using HTML5 Today part 2&ndash;Fixing Semantic tags with a Shiv

    - by Steve Albers
    Semantic elements and the Shiv! This is the second entry in the series of demos from the “Using HTML5 Today” talk. For the definitive discussion on unknown elements and the HTML5 Shiv check out Mark Pilgrim’s Dive Into HTML5 online book at http://diveintohtml5.info/semantics.html#unknown-elements Semantic tags increase the meaning and maintainability of your markup, help make your page more computer-readable, and can even provide opportunities for libraries that are written to automagically enhance content using standard tags like <nav>, <header>,  or <footer>. Legacy IE issues However, new HTML5 tags get mangled in IE browsers prior to version 9.  To see this in action, consider this bit of HTML code which includes the new <article> and <header> elements: Viewing this page using the IE9 developer tools (F12) we see that the browser correctly models the hierarchy of tags listed above: But if we switch to IE8 Browser Mode in developer tools things go bad: Did you know that a closing tag could close itself?? The browser loses the hierarchy & closes all of the new tags.  The new tags become unusable and the page structure falls apart. Additionally block-level elements lose their block status, appearing as inline.    The Fix (good) The block-level issue can be resolved by using CSS styling.  Below we set the article, header, and footer tags as block tags. article, header, footer {display:block;} You can avoid the unknown element issue by creating a version of the element in JavaScript before the actual HTML5 tag appears on the page: <script> document.createElement("article"); document.createElement("header"); document.createElement("footer"); </script> The Fix (better) Rather than adding your own JS you can take advantage of a standard JS library such as Remy Sharp’s HTML5 Shiv at http://code.google.com/p/html5shiv/.  By default the Modernizr library includes HTML5 Shiv, so you don’t need to include the shiv code separately if you are using Modernizr.

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  • How to interpret number of URL errors in Google webmaster tools

    - by user359650
    Recently Google has made some changes to Webmaster tools which are explained below: http://googlewebmastercentral.blogspot.com/2012/03/crawl-errors-next-generation.html One thing I could not find out is how to interpret the number of errors over time. At the end of February we've recently migrated our website and didn't implement redirect rules for some pages (quite a few actually). Here is what we're getting from the Crawl errors: What I don't know is if the number of errors is cumulative over time or not (i.e. if Google bots crawl your website on 2 different days and find 1 separate issue on each day, whether they will report 1 error for each day, or 1 for the 1st, and 2 for the 2nd). Based on the Crawl stats we can see that the number of requests made by Google bots doesn't increase: Therefore I believe the number of errors reported is cumulative and that an error detected on 1 day is taken into account and reported on the subsequent days until the underlying problem is fixed and the page it's crawled again (or if you manually Mark as fixed the error) because if you don't make more requests to a website, there is no way you can check new pages and old pages at the same time. Q: Am I interpreting the number of errors correctly?

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  • Enjoy the 22nd 2012 Ig Nobel Awards Ceremony [Video]

    - by Jason Fitzpatrick
    Last night was the 22nd Ig Nobel award ceremony. If you weren’t there to experience the festivities first hand, don’t despair–you can watch the entire ceremony here. If you’re unfamiliar with the Ig Nobel awards Improbable Research, the group behind the awards, is happy to explain: The Ig Nobel Prizes honor achievements that first make people laugh, and then make them think. The prizes are intended to celebrate the unusual, honor the imaginative — and spur people’s interest in science, medicine, and technology. Every year, in a gala ceremony in Harvard’s Sanders Theatre, 1200 splendidly eccentric spectators watch the winners step forward to accept their Prizes. These are physically handed out by genuinely bemused genuine Nobel laureates. Check out the above video to see the awards ceremony (jump to around the 50:00 mark to skip the setup phase) or hit up the link below to read about the 2012 winners. The 2012 Ig Nobel Prize Winners How To Create a Customized Windows 7 Installation Disc With Integrated Updates How to Get Pro Features in Windows Home Versions with Third Party Tools HTG Explains: Is ReadyBoost Worth Using?

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  • Oracle Vanquisher: A Data Center Optimization Adventure to Debut at Oracle OpenWorld

    - by Oracle OpenWorld Blog Team
    Heat. Downtime. Site-wide outages. Legacy hardware. Security holes. These are all threats to your data center. What if you could vanquish them to simplify your IT and accelerate business innovation and growth? Find out how - play Oracle Vanquisher, a new data center optimization video game that will be showcased at Oracle OpenWorld (Hardware DEMOgrounds, Moscone South Hall).Playing Oracle Vanquisher, you'll be armed with a cool Oracle vacuum pack suit and a strategic IT roadmap. You'll thwart threats and optimize your data center to increase your company’s stock price and boost your company’s position. Of course, optimizing your data center is far more than a great game. For more information, visit the Oracle Optimized Data Center homepage or check out these targeted Oracle OpenWorld keynotes and sessions:KeynotesShift Complexity, with Oracle President Mark HurdMonday, October 1, 8:00 a.m. - 9:30 a.m.Moscone North, Hall DOracle Cloud Infrastructure and Engineered Systems: Fast, Reliable, Virtualized, with Oracle Executive Vice President John FowlerWednesday, October 3, 8:00 a.m. - 9:45 a.m.Moscone North, Hall DSessions Oracle Linux Oracle Optimized Solutions Oracle Solaris SPARC Servers Storage SPARC SuperCluster Oracle VM Server Virtualization Desktop Virtualization

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  • Computer Bugs - Etymology and Entomology

    - by PointsToShare
    Whatever bugs you My wife and I used to take some of our summer vacation I a cabin on the shore of Lake Atsion in NJ. I t is a delightful place in the Wharton forest with Brown yet fresh water, where we would canoe, swim and enjoy true rest. Alas, in the last few years, yellow flies also discovered the area’s pastoral delights and came in hoards to bug us. So much so that we had to give up. As a computer programmer I abhor bugs. The bugs that bug me – except the pesky yellow flies – are program bugs , a specific variety of computer bugs. You can find an excellent take on the etymology of the word ‘bug” in this delightful monogram: http://www.jamesshuggins.com/h/tek1/first_computer_bug.htm In my youth, I worked on Burroughs computers. Unlike their IBM brethren, the Burroughs used a 96 column card. The cards were much smaller than the 80 column IBM cards. We wrote our programs on coding sheets and then a key-punch operator transcribed them into punched cards. These were fed into a card reader and compiled. The compiler would notify us of compiler errors or bugs, but it was not always easy to get the meaning of the message. My friend Mark Wildt, also a Burroughs veteran, gave me an old punched card from one of his programs. Obviously a bug!! Here It Is!! That’s All Folks!

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  • Spotlight on mkyong

    - by MarkH
    Occasionally, I'd like to share a blog I've discovered or that someone has passed along to me. Criteria are few, but in a nutshell, it must be: Java-related. (Doh!) Interesting. A good blog is exciting to read at some level, whether due to perspective, eye-catching writing, or technical insight. It doesn't have to read like a Stephen King novel, but it should grab you somehow. Technically deep or technically broad. A site that dives deeply, quickly is a great reference for particular topics/tasks. On the other hand, one that covers a lot of ground at a high-but-still-technical level can be a handy site to visit occasionally as well. Both are what I consider "bookmarkable", but for different reasons. Drumroll, please... With that in mind, this Blog Spotlight is cast upon mkyong.com, a site I stumbled across that offers a little bit of everything for various Java dev audiences. The title indicates the site is for "Java web development tutorials", and indeed it does have these: JSF, Spring, Struts, Hibernate, JAX-WS, JAX-RS, and numerous other topics are addressed to varying degrees. The site isn't devoted exclusively to server-side tutorials, though. Recent posts include mobile development topics, and the links at the bottom of the page connect you to reference pages and other useful sites. I've poked around through a couple of the tutorials and, while they won't take you from "zero to hero", they do seem to provide a nice overview of the subject at hand. They also offer an occasional explanatory comment that is missing from far too many texts, sites, and doc pages. It's not a perfect site, but I like it. The Bottom Line mkyong.com offers a nice "summary site" of server-side tutorials, mobile dev posts, and reference links. Check it out! All the best,Mark 

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  • early audio offset in Audacity and VLC, but not Banshee

    - by reek
    I'm editing audio files with speech in Audacity, marking particular types of speech. I just noticed that files edited in Windows have different intervals marked than files edited in Ubuntu. After testing and confirming this error, it seems that the audio playback in Ubuntu clips the sound too early from the end (early offset), which causes the person doing the editing to mark the interval wrongly. Interestingly, the error appears in Audacity and VLC (which I sometimes use for playback), but NOT Banshee. Since both Audacity and VLC have this problem, I assume it is not application-specific. I don't know why Banshee handles this without problem though... Are there any ALSA or Pulseaudio settings that are likely to cause this problem (I know very little about either)? The task itself does not appear to consume large amounts of resources, but I am on an old laptop, so here are my specs: Ubuntu 11.10. Dell XPS m1210 1.6 GHz Intel Core, 2 x 512 Mb 667 MHz RAM, Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 01). Audacity settings: Device Interface: ALSA (cannot select anything else)

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  • Oracle University Seminars April/May/June 2012

    - by A&C Redaktion
    Normal 0 21 false false false DE X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Oracle University's Expert Seminars are exclusive events delivered by top experts with years of experience in working with Oracle products. The seminars topics cover the breadth of the Oracle portfolio and are aimed at helping you to get the most of your Oracle products and to stay connected with new technologies. We currently have the following events scheduled: RAC Performance Tuning Online with Arup Nanda - 30 Apr 2012 Understanding Explain Plans & Index Utilization Online with Dan Hotka - 8-9 May 2012 Writing Optimal SQL & Troubleshooting & Tuning with Jonathan Lewis, Düsseldorf, 9-10 May 2012 Flashback Techniques in Oracle11g with Carl Dudley, München, 14 May 2012 Minimize Downtime with Rolling Upgrade using Data Guard with Uwe Hesse, München, 16 May 2012 Enterprise Business Intelligence 11g Advanced Development Online with Mark Rittman – 24-25 May Mastering Backup & Recovery with Francisco Munoz Alvarez, Düsseldorf, 29-30 May 2012 Real World Java EE 6 – Re-thinking Best Practice with Adam Bien, München, 15 Jun 2012

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  • Performance issues with visibility detection and object transparency

    - by maul
    I'm working on a 3d game that has a view similar to classic isometric games (diablo, etc.). One of the things I'm trying to implement is the effect of turning walls transparent when the player walks behind them. By itself this is not a huge issue, but I'm having trouble determining which walls should be transparent exactly. I can't use a circle or square mask. There are a lot of cases where the wall piece at the same (relative) position has different visibility depending on the surrounding area. With the help of a friend I came up with this algorithm: Create a grid around the player that contains a lot of "visibility points" (my game is semi tile-based so I create one point for every tile on the grid) - the size of the square's side is close to the radius where I make objects transparent. I found 6x6 to be a good value, so that's 36 visibility points total. For every visibility point on the grid, check if that point is in the player's line of sight. For every visibility point that is in the LOS, cast a ray from the camera to that point and mark all objects the ray hits as transparent. This algorithm works - not perfectly, but only requires some tuning - however this is very slow. As you can see, it requries 36 ray casts minimum, but most of the time 60-70 depending on the position. That's simply too much for the CPU. Is there a better way to do this? I'm using Unity 3D but I'm not looking for an engine-specific solution.

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  • How can a large, Fortran-based number crunching codebase be modernized?

    - by Dave Mateer
    A friend in academia asked me for advice (I'm a C# business application developer). He has a legacy codebase which he wrote in Fortran in the medical imaging field. It does a huge amount of number crunching using vectors. He uses a cluster (30ish cores) and has now gone towards a single workstation with 500ish GPUS in it. However where to go next with the codebase so: Other people can maintain it over next 10 year cycle Get faster at tweaking the software Can run on different infrastructures without recompiles After some research from me (this is a super interesting area) some options are: Use Python and CUDA from Nvidia Rewrite in a functional language. For example, F# or Haskell Go cloud based and use something like Hadoop and Java Learn C What has been your experience with this? What should my friend be looking at to modernize his codebase? UPDATE: Thanks @Mark and everyone who has answered. The reasons my friend is asking this question is that it's a perfect time in the projects lifecycle to do a review. Bringing research assistants up to speed in Fortran takes time (I like C#, and especially the tooling and can't imagine going back to older languages!!) I liked the suggestion of keeping the pure number crunching in Fortran, but wrapping it in something newer. Perhaps Python as that seems to be getting a stronghold in academia as a general-purpose programming language that is fairly easy to pick up. See Medical Imaging and a guy who has written a Fortran wrapper for CUDA, Can I legally publish my Fortran 90 wrappers to Nvidias' CUFFT library (from the CUDA SDK)?.

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  • Oracle Solaris at OpenWorld Tokyo 2012

    - by Markus Weber
    Oracle OpenWorld Tokyo will open its doors on Wednesday, April 4 2012, until Friday, April 6 2012, in Roppongi.I've you been in Tokyo as a Gaijin, or foreigner, you know exactly where that it. Many of Oracle's top executives will be there, including Larry Ellison, Mark Hurd, and John Fowler. The keynotes that they are covering will be very interesting, for sure. Now, whether you will actually be there, or not, you might still find it interesting that several great Solaris-related sessions will be held there, especially as part of the "Oracle Develop" track, such as: "Oracle Solaris 11 - Developers Need To Know" "How to build high performance and high security Oracle Database environment with Oracle SPARC/Solaris" "Oracle Solaris Tuning Contest" "IT Assets preservation and constructive migration with Oracle Solaris virtualization" And of course John Fowler's keynote "Server and Storage Systems Strategy".The complete schedule in English can be found here. We hope you can make it. If not, there will always be the San Francisco one.

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  • Using Exception Handler in an ADF Task Flow

    - by anmprs
    Problem Statement: Exception thrown in a task flow gets wrapped in an exception that gives an unintelligible error message to the user. Figure 1 Solution 1. Over-writing the error message with a user-friendly error message. Figure 2 Steps to code 1. Generating an exception: Write a method that throws an exception and drop it in the task flow.2. Adding an Exception Handler: Write a method (example below) to overwrite the Error in the bean or data control and drop the method in the task flow. Figure 3 This method is marked as the Exception Handler by Right-Click on method > Mark Activity> Exception Handler or by the button that is displayed in this screenshot Figure 4 The Final task flow should look like this. This will overwrite the exception with the error message in figure 2. Note: There is no need for a control flow between the two method calls (as shown below). Figure 5 Solution 2: Re-Routing the task flow to display an error page Figure 6 Steps to code 1. This is the same as step 1 of solution 1.2. Adding an Exception Handler: The Exception handler is not always a method; in this case it is implemented on a task flow return.  The task flow looks like this. Figure 7 In the figure below you will notice that the task flow return points to a control flow ‘error’ in the calling task flow. Figure 8 This control flow in turn goes to a view ‘error.jsff’ which contains the error message that one wishes to display.  This can be seen in the figure below. (‘withErrorHandling’ is a  call to the task flow in figure 7) Figure 9

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  • What are the best practices for phasing out obsolete code?

    - by P.Brian.Mackey
    I have the need to phase out an obsolete method. I am aware of the [Obsolete] attribute. Does Microsoft have a recommended best practice guide for doing this? Here's my current plan: A. I do not want to create a new assembly because developers would have to add a new reference to their projects and I expect to get a lot of grief from my boss and co-workers if they must do this. We also do not maintain multiple assembly versions. We only use the latest version. Changing this practice would require changing our deployment process which is a big issue (have to teach people how to do things with TFS instead of FinalBuilder and get them to give up FinalBuilder) B. Mark the old method obsolete. C. Because the implementation is changing (not the method signature), I need to rename the method rather than create an overload. So, to make users aware of the proper method I plan to add a message to the [Obsolete] attribute. This part bothers me, because the only change I'm making is decoupling the method from the connection string. But, because I'm not adding a new assembly, I see no way around this. Result: [Obsolete("Please don't use this anymore because it does not implement IMyDbProvider. Use XXX instead.")]; /// <summary> /// /// </summary> /// <param name="settingName"></param> /// <returns></returns> public static Dictionary<string, Setting> ReadSettings(string settingName) { return ReadSettings(settingName, SomeGeneralClass.ConnectionString); } public Dictionary<string, Setting> ReadSettings2(string settingName) { return ReadSettings(settingName);// IMyDbProvider.ConnectionString private member added to class. Probably have to make this an instance method. }

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  • SQLRally Nordic gets underway

    - by Rob Farley
    PASS is becoming more international, which is great. The SQL Community has always been international – it’s not as if data is only generated in North America. And while it’s easy for organisations to have a North American focus, PASS is taking steps to become international. Regular readers will be aware that I’m one of three advisors to the PASS Board of Directors, with a focus on developing PASS as a more global organisation. With this in mind, it’s great that today is Day 1 of SQLRally Nordic, being hosted in in Sweden – not only a non-American country, but one that doesn’t have English as its major language. The event has been hosted by the amazing Johan Åhlén and Raoul Illyés, two guys who I met earlier this year, but the thing that amazes me is the incredible support that this event has from the SQL Community. It’s been sold out for a long time, and when you see the list of speakers, it’s not surprising. Some of the industry’s biggest names from Microsoft have turned up, including Mark Souza (who is also a PASS Director), Thomas Kejser and Tobias Thernström. Business Intelligence experts such as Jen Stirrup, Chris Webb, Peter Myers, Marco Russo and Alberto Ferrari are there, as are some of the most awarded SQL MVPs such as Itzik Ben-Gan, Aaron Bertrand and Kevin Kline. The sponsor list is also brilliant, with names such as HP, FusionIO, SQL Sentry, Quest and SolidQ complimented by Swedish companies like Cornerstone, Informator, B3IT and Addskills. As someone who is interested in PASS becoming global, I’m really excited to see this event happening, and I hope it’s a launch-pad into many other international events hosted by the SQL community. If you have the opportunity, thank Johan and Raoul for putting this event on, and the speakers and sponsors for helping support it. The noise from Twitter is that everything is going fantastically well, and everyone involved should be thoroughly congratulated! @rob_farley

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