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• Invitation: Oracle EMEA Analytics & Data Integration Partner Forum, 12th November 2012, London (UK)

  - by rituchhibber

  Oracle PartnerNetwork | Account | Feedback INVITATIONORACLE EMEA ANALYTICS & DATA INTEGRATION PARTNER FORUM MONDAY 12TH NOVEMBER, 2012 IN LONDON (UK) Dear partner Come to hear the latest news from Oracle OpenWorld about Oracle BI & Data Integration, and propel your business growth as an Oracle partner. This event should appeal to BI or Data Integration specialised partners, Executives, Sales, Pre-sales and Solution architects: with a choice of participation in the plenary day and then a set of special interest (technical) sessions. The follow on breakout sessions from the 13th November provide deeper dives and technical training for those of you who wish to stay for more detailed and hands-on workshops.Keynote: Andrew Sutherland, SVP Oracle Technology. Data Integration can bring great value to your customers by moving data to transform their business experiences in Oracle pan-EMEA Data Integration business development and opportunities for partners. Hot agenda items will include: The Fusion Middleware Stack: Engineered to work together A complete Analytics and Data Integration Solution Architecture: Big Data and Little Data combined In-Memory Analytics for Extreme Insight Latest Product Development roadmap for Data Integration and Analytics Venue: Oracles London CITY Moorgate OfficesDuring this event you can learn about partner success stories, participate in an array of break-out sessions, exchange information with other partners and enjoy a vibrant panel discussion. Places are limited, Register your seat today! To register to this event CLICK HERE Note: Registration for the conference and the deeper dives and technical training is free of charge to OPN member Partners, but you will be responsible for your own travel and hotel expenses. Event Schedule November 12th:Day 1 Main Plenary Session : Full day, starting 10.30 am.Oracle Hosted Dinner in the Evening November 13th:onwards Architecture Masterclass : IM Reference Architecture – Big Data and Little Data combined(1 day) BI-Apps Bootcamp(4-days) Oracle Data Integrator and Oracle Enterprise Data Quality workshop(1-day) Golden Gate Workshop(1-day) For further information and detail download the Agenda (pdf) or contact Michael Hallett at [email protected] look forward to seeing you in there. Best regards, Mike HallettAlliances and Channels DirectorBI & EPM Oracle EMEAM.No: +44 7831 276 989 [email protected] Duncan HarveyBusiness Development Directorfor Data IntegrationM.No: +420 608 283 [email protected] Milomir VojvodicBusiness Development Manager for Data IntegrationM.No: +420 608 283 [email protected] Copyright © 2012, Oracle and/or its affiliates. All rights reserved. Contact PBC | Legal Notices and Terms of Use | Privacy

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• Runge-Kutta (RK4) integration for game physics

  - by Kai

  Gaffer on Games has a great article about using RK4 integration for better game physics. The implementation is straightforward but the math behind it confuses me. I understand derivatives and integrals on a conceptual level but I haven't manipulated equations in a long time. Here's the brunt of Gaffer's implementation: void integrate(State &state, float t, float dt) { Derivative a = evaluate(state, t, 0.0f, Derivative()); Derivative b = evaluate(state, t+dt*0.5f, dt*0.5f, a); Derivative c = evaluate(state, t+dt*0.5f, dt*0.5f, b); Derivative d = evaluate(state, t+dt, dt, c); const float dxdt = 1.0f/6.0f * (a.dx + 2.0f*(b.dx + c.dx) + d.dx); const float dvdt = 1.0f/6.0f * (a.dv + 2.0f*(b.dv + c.dv) + d.dv) state.x = state.x + dxdt * dt; state.v = state.v + dvdt * dt; } Can anybody explain in simple terms how RK4 works? Specifically, why are we averaging the derivatives at 0.0f, 0.5f, 0.5f, and 1.0f? How is averaging derivatives up to the 4th order different from doing a simple euler integration with a smaller timestep? After reading the accepted answer below, and several other articles, I have a grasp on how RK4 works. To answer my own questions: Can anybody explain in simple terms how RK4 works? RK4 takes advantage of the fact that we can get a much better approximation of a function if we use its higher-order derivatives rather than just the first or second derivative. That's why the Taylor series converges much faster than Euler approximations. (take a look at the animation on the right side of that page) Specifically, why are we averaging the derivatives at 0.0f, 0.5f, 0.5f, and 1.0f? The Runge-Kutta method is an approximation of a function that samples derivatives of several points within a timestep, unlike the Taylor series which only samples derivatives of a single point. After sampling these derivatives we need to know how to weigh each sample to get the closest approximation possible. An easy way to do this is to pick constants that coincide with the Taylor series, which is how the constants of a Runge-Kutta equation are determined. This article made it clearer for me: http://web.mit.edu/10.001/Web/Course%5FNotes/Differential%5FEquations%5FNotes/node5.html. Notice how (15) is the Taylor series expansion while (17) is the Runge-Kutta derivation. How is averaging derivatives up to the 4th order different from doing a simple euler integration with a smaller timestep? Mathematically it converges much faster than doing many Euler approximations. Of course, with enough Euler approximations we can gain equal accuracy to RK4, but the computational power needed doesn't justify using Euler.

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• Actionscript 3: Force program to wait until event handler is called

  - by Jeremy Swinarton

  I have an AS 3.0 class that loads a JSON file in using a URLRequest. package { import flash.display.MovieClip; import flash.display.Loader; import flash.net.URLRequest; import flash.net.URLLoader; import flash.events.Event; public class Tiles extends MovieClip { private var mapWidth:int,mapHeight:int; private var mapFile:String; private var mapLoaded:Boolean=false; public function Tiles(m:String) { init(m); } private function init(m:String):void { // Initiates the map arrays for later use. mapFile=m; // Load the map file in. var loader:URLLoader = new URLLoader(); loader.addEventListener(Event.COMPLETE, mapHandler); loader.load(new URLRequest("maps/" + mapFile)); } private function mapHandler(e:Event):void { mapLoaded=true; mapWidth=3000; } public function getMapWidth():int { if (mapLoaded) { return (mapWidth); } else { getMapWidth(); return(-1); } } } } When the file is finished loading, the mapHandler event makes changes to the class properties, which in turn are accessed using the getMapWidth function. However, if the getMapwidth function gets called before it finishes loading, the program will fail. How can I make the class wait to accept function calls until after the file is loaded?

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• How does a hard drive compare to Flash memory working as a hard drive in terms of speed?

  - by Jian Lin

  Some experiment I did with hard drive read/write speed was 10MB/s write and 40MB/s read, and with a USB Flash drive, it can be 5MB/s write and 10MB/s read. Also, if I put a virtual hard drive .vhd file in a hard drive or in a USB Flash drive and try a Virtual Machine using it, the one using the hard drive is quite fast, while the one using the USB Flash drive is close to not usable. So I wonder some early netbooks use 4GB or 8GB flash memory as the hard drive, and even the Apple Mac Air has an option of using flash memory instead of a hard drive. But in those situation, will the speed be slower than using a hard drive, like in the case of a USB Flash drive?

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• how to install flash for opera browser? ubuntu 12 04

  - by santosamaru

  for the opera:plugins setting its had been setup as enable to use the flash player .. and also i do trying to follow the instruction from I am testing the new Opera 11, but it keeps telling me I need to install flash player it still not help me .. what i have after following that link instructions is root@santos:/home/santos# cp /usr/lib/flashplugin-installer/libflashplayer.so ~/.opera/plugins/libflashplayer.so cp: cannot create regular file `/root/.opera/plugins/libflashplayer.so': No such file or directory root@santos:/home/santos# sudo apt-get gecko-mediaplayer E: Invalid operation gecko-mediaplayer root@santos:/home/santos# cp /usr/lib/flashplugin-installer/libflashplayer.so ~/.opera/plugins/libflashplayer.so cp: cannot create regular file `/root/.opera/plugins/libflashplayer.so': No such file or directory anyone can help me to solve this ?

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• Comparison of Hudson, CDash, CruisonControl, TeamCity for Continuous Integration / Builder

  - by Wernight

  I found most people talk about Hudson for simple and free continuous integration. Now personally I'm not fond of its interface which I find very messy, and I found almost no one talking about CDash -- I love CMake and CTest seem nice too. Could you give for each continuous integration server/builder/tester/dashboard a short description of its strong and weak decision points. Here is a list of those I've heard of, or used: Hudson CDash CruisonControl TeamCity Bamboo Environment: C++, C#, Python, PHP... can be various. PS: Preferably give one answer per tool or comment on it there is already one.

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• Continous Build Integration with SourceSafe and Batch Files

  - by CraigS

  I want to create a continuous build integration system for .NET using just Windows batch files and Visual Source Safe. I've come up with the following batch file so far - set ssdir=\\xxxx\vss cd d:\mydir "C:\Program Files\Microsoft Visual SourceSafe\ss.exe" diff "$/sourcedir" -R -Q > diffout.txt This will spit out a file containg lines like "SourceSafe files different from local files" when a change has been made. My challenge is to figure out if those lines are in the file, then do a get and kick off MSBuild if they are. I'd then schedule the batch file to run every 10 minutes or so. Anyone got any thoughts on how to do that? Or any other ways of doing continuous build integration without downloading a complicated build automation system? Update: Happy to use cscript or powershell too, though not really familiar with those environments. My main aim is to avoid installing 3rd party software

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• Continous Build Integration with SourceSafe and Windows Batch Files

  - by CraigS

  I want to create a continuous build integration system for .NET using just Windows batch files and Visual Source Safe. I've come up with the following batch file so far - set ssdir=\\xxxx\vss cd d:\mydir "C:\Program Files\Microsoft Visual SourceSafe\ss.exe" diff "$/sourcedir" -R -Q > diffout.txt This will spit out a file containg lines like "SourceSafe files different from local files" when a change has been made. My challenge is to figure out if those lines are in the file, then do a get and kick off MSBuild if they are. I'd then schedule the batch file to run every 10 minutes or so. Anyone got any thoughts on how to do that? Or any other ways of doing continuous build integration without downloading a complicated build automation system? Update: Happy to use cscript or powershell too, though not really familiar with those environments. My main aim is to avoid installing 3rd party software

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• alipay integration with Cakephp

  - by Mohanraj

  Hi, please i need the alipay integration with Cakephp, send the document or source in this mail [email protected]

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• Is there a way to export all the images of my tweening effect in Flash?

  - by Paul

  i'm using Flash to create the animation of my character in 2D (i'm just beginning). Is it possible to make a tween effect of a character, and then automatically export all the images/frames? So far, it's a bit fastidious : i create my tweening effect, then i put a keyframe for each frame i want to copy and paste, then i select the movieclips and shapes and copy and paste them into another flash document, i position those clips at the exact same location as the previous image, then i erase the previous image and export the image... For 30 frames! Is there any faster way? Thanks

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• Integration of Magento with third party CRM, POS and ERP solutions

  - by SIA

  Hi there, First of all I would like to Thank the Varien Company for providing the best ecommerce solution and free community edition. I am very excited since i started knowing about magento. I am a web developer and very much interested. I have some concerns about the Integration of Magento with other CRM,ERP systems. How is it possible to integrate Magento with any other Industry standard CRM and ERP system? How can i fetch the data from a ERP and update Magento database, like transactiona replication. Is this possible? And Whats the right way to do it? Also, How can i integrate Magento with POS? Is it possible to have bi-directional data update between Magento and Industry Standard POS? I hope I have stated all my doubts and made it clear. I would be thankful if someone guides me to do the integration, the Right way. Thanks and Regards SIA

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• How to fix audio/game stuttering in Google Chrome's Flash plug-in?

  - by Simon Belmont

  I'm having an issue. Windows XP, running the latest Chrome 23 build. I'm using Flash 11.5 built into Chrome (Pepper Flash). It runs horribly. Chrome 22 did not have this issue as far as I recall. What a shame. YouTube videos stutter badly and after a while, they begin to lag and lose sync with the video. I disabled Pepper Flash and tested HTML5 video in YouTube and it was smooth as glass. Additionally, certain Flash based games are almost unusable now. The plug-in is using 100% CPU and it lags horribly in these games. Google/Adobe, please fix this. I shouldn't have to disable the built-in Flash plug-in (with added sandboxing security) and use regular Flash to resolve this. Short of waiting for an update to Chrome, does anyone have a better solution to fixing this? I am all ears.

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• HelpSpot to Fogbugz to HelpSpot integration

  - by James Ludlow

  Does anyone have a nice example of integration between HelpSpot and Fogbugz? We're using HelpSpot as our customer facing software and ticket management, and then if a developer needs to work on a ticket the data will be pushed to Fogbugz. Obviously we can use the Fogbugz push API that Userscape provides, but this only allows you to specify the title of the incident in Fogbugz. Ideally I want to share title, assigned to, category and status in a two-way integration. Do most people just use emails between the two programs, or has anyone come across a nice third party app? Thanks in advance!

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• How do I install Flash for just one browser on Mac?

  - by ridogi

  How can I install Flash for just Firefox and not Safari? I would like to have Flash not load at all, so the Click to Flash extension is not good enough. I've looked at the Safari plist and don't see any way to disable it. Alternatively, updating the Flash plugin that is built into Chrome would solve this. I used to use Chrome for my flash only browsing, but Google is not updating the embedded flash player. I found the way to force Chrome to ignore it's built in plugin in this Adobe KB article, but then Chrome just uses the plugin installed for the system.

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• How do I fix Flash player in Chrome 20?

  - by r0ckarong

  I just updated to Chrome 20.0.1132.43 which includes Flash 11.3.31.109. Since that update most of the flash videos I watch online will randomly display erratic behavior (skipping like a broken CD, "fast forwarding" at twice the frame rate with the audio being scrambled due to too fast playback, restarting every video after two seconds, fullscreen overlay being displayed but no image, fullscreen taking several seconds to actually show a picture, youtube player to go fullscreen but then hang in the controls fadeout animation with no picture -sound keeps playing). Is there anything I can do to resolve or work around this? I'm using Ubuntu 12.10 64Bit and the latest nvidia-current drivers 295.40 on a Geforce GT 440. It used to work in previous versions of Google Chrome.

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• Beginner flash game development: Start with framework or from scratch?

  - by captaincomic

  I want to write some simple flash games (as a hobby). I have a lot of programming experience, but no experience with Flash/ActionScript. My question is: As a beginner, is it a good idea to start with a framework like Flixel, FlashPunk or PushButton or would it be better to write my first games from scratch? Also, if you vote for using a framework, which one would you recommend? What are the differences? And another question: What about Flex, would you recommend using it?

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• Final Integration Testing for Q.A.

  - by CalebHC

  A medium sized rails app that our company has been working on is getting close to the end of development and we are going to start doing Q.A. testing on it. We've have been writing unit, functional and integration tests all along and our test coverage is about 99% (even though that really doesn't mean anything). We feel like we have a pretty good test suite but I was wondering if we should be writing final integration tests for every little action we are going to do during our Q.A. process. If so, would using Shoulda or Cucumber be a good idea? We haven't used either of those testing tools yet, but they sound really great. Any ideas or thoughts would be really helpful. Thanks

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• version control + continuous integration with Flex + Ruby or Django

  - by user306584

  trying to pick version control, continuous integration, and host for Flex + Ruby or Django smallish project. Question: version control: I've used SVN and CVS in the past. I hear great things about git. Not sure what to pick. continuous integration: I've heard good things about hudson and cruiseControl. Not sure what to pick hosting: is my own server the only way to go? Are the decent cloud options that are not too expensive? or should I look for some free hosting service? thank you for your help! f

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• Is jQuery forcing Adobe ColdFusion to abandon the dead flash product line?

  - by crosenblum

  I have been reading a lot about how flash development/design had died, and as jQuery and in the near future html5 comes out, will this start to push Adobe/Coldfusion away from flash towards less product linking? I mean, I love coldfusion, and want that to continue to grow, however, if Adobe only bought Coldfusion from Macromedia, so they can bundle flash and coldfusion together, does the death of flash mean the death of coldfusion? http://topnews.us/content/221385-jobs-says-adobes-flash-waning-and-had-its-day http://aext.net/2010/03/javascript-jquery-killing-flash-tutorial-jquery-plugin/ I really don't mind if Flash dies, I do mind greatly if coldfusion does. Is the success of Flash linked to Coldfusion? If so, why? or why not? The purpose of this isn't to start some war about flash pro's and con's. I was only worried that Adobe would cause problems for Coldfusion, if flash had some market/financial problems. That was my main concern... And no I am not anti-flash... But my financial sanity depends on Coldfusion being a success, so that is why I stated my question. Because I WANT EVERYONE ELSE'S OPINION OF THIS SITUATION. Thank You.

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• Creating a Windows XP installation flash drive in linux

  - by Alex

  How can I create a bootable flash drive to install Windows XP from under Linux? I have Ubuntu installed on my PC and want to install Windows XP parallelly. I already have an NTFS hard drive, so what I need is to install Windows there and make it available through a boot manager. I also have a Windows installation .iso. So how to produce a ready-for-installation USB-stick from this?

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• ubuntu: totem asking for a flash demuxer plugin and not playing flv videos

  - by deostroll

  I have ubuntu karmic os (9.10). Totem was the default movie player. It used to play flv files as well. Now all of a sudden it asks for a flash demuxer plugin and refuses to play flv files. How to fix this?

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• Reduce Mac OS X's Flash CPU usage

  - by elhombre

  I have been experiencing high CPU usage (138%) on my MacBook, while looking at flash videos on the internet with the Firefox browser. Mostly this usage makes itself noticeable by the loud noise of the fans and a hot MacBook which is very annoying for me. Does anyone know how to solve this problem or a workaround in of any kind?

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• Quality gets worse using ffmpeg and Flash

  - by HOpety

  I have bunch of flash videos and am adding my brand to all of them. The problem is quality gets worse. I am doing with this command: ffmpeg -i /input.flv -vhook "/usr/loca/vhook/drawtext.so -f /usr/share/fonts/somefont.ttf -x 5 -y 5 t MyBrand" -f flv -s 320x240 - | flvtools2 -U stdin /output.flv Please tell me what I am doing wrong. I need the same quality.

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• Virus protection for flash drives.

  - by The Green Frog

  At school, there is a large network with lots of non-technical minded people and lots of viruses. How can I protect my flash drive from these worms and viruses so I don't bring them home and infect my home computers?

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• Kingston USB flash drive formatting problem !!

  - by Mr-Right

  My 2GB kingston flash drive is not being formatted in windows XP OS !! When I try to format it, it doesn't get formatted through windows standard formatting option or even in Partition magic 8.0 (DOS based version).

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