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• Coherence Webcast for Developers July 11

  - by jeckels

  Coming on July 11th, we look forward to having you join us for a special Coherence webcast - just for developers! Want to learn how you, the developer, can make applications Big Data and Fast data ready? Want to be able to customize and manage your applications and services to provide real-time data and processing with ease? Then this webcast is for you. Coherence Live Webcast Developers: Deploy Highly-Available Custom Services on Your Data Grid Products July 11, 10am Pacific Time >> Register now! <<  (of course, it's free)Join Brian Oliver of the Coherence team to see how you can create and deploy customized, highly-available services for your data grid, and how real-time data processing will allow you to provide unmatched end-user experiences. We look forward to having you join us.

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• Installer File Size Reduced

  The DevExpress DXperience installation file size will be about 1/2 size of its current 300+ megabytes! Starting with the v2010.1 installer, youll have less to download. How? The documentation files have been removed from the DXperience installer. However, a separate installer with just the documentation will be available for download. Search.DevExpress.Com FTW! Personally, I prefer to use the online documentation available at http://search.devexpress.com. Its fast and up to date! Look for...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Simple solution now to a problem from 8 years ago. Use SQL windowing function

  - by Kevin Shyr

  Originally posted on: http://geekswithblogs.net/LifeLongTechie/archive/2014/06/10/simple-solution-now-to-a-problem-from-8-years-ago.aspxI remember having this problem 8 years ago. We had to find the top 5 donor per month and send out some awards. The SQL we came up with was clunky and had lots of limitation (can only do one year at a time), then switch the where clause and go again. Fast forward 8 years, I got a similar problem where we had to find the top 3 combination of 2 fields for every single day. And the solution is this elegant: SELECT CAST(eff_dt AS DATE) AS "RecordDate" , status_cd , nbr , COUNT(*) AS occurance , ROW_NUMBER() OVER (PARTITION BY CAST(eff_dt AS DATE) ORDER BY COUNT(*) DESC) RowNum FROM table1 WHERE RowNum < 4 GROUP BY CAST(eff_dt AS DATE) , status_cd , nbr If only I had this 8 years ago. :) Life is good now!

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• How can I render player movement on a 2d plane efficiently?

  - by user422318

  I'm prototyping a 2d HTML5 game with similar interaction to Diablo II. (See an older post of mine describing the interaction here: How can I imitate interaction and movement in Diablo II?) I just got the player click-to-move system working using the Bresenham algorithm but I can't figure out how to efficiently render the player's avatar as he moves across the screen. By the time redraw() is called, the player has already finished moving to the target point. If I try to call redraw() more frequently (based on my game timer), there's incredible system lag and I don't even see the avatar image glide across the screen. I have a game timer based off this awesome timer class: http://www.dailycoding.com/Posts/object_oriented_programming_with_javascript__timer_class.aspx In the future, there will be multiple enemies chasing the player. Fast pace is essential to the experience. What should I do?

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• How to Create and Use Templates in Outlook 2010

  - by Taylor Gibb

  If you reply to the emails with the same answer over and over, it will save you a lot of time to create a template that you can use over and over. We have previously show you how to create templates in Outlook 2003, so lets take a look at using Outlook 2010. When creating a template you get started as if you were creating a new email, that is choose new email from the Home tab. You can now draft your email as normal. HTG Explains: When Do You Need to Update Your Drivers? How to Make the Kindle Fire Silk Browser *Actually* Fast! Amazon’s New Kindle Fire Tablet: the How-To Geek Review

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• PowerShell One-Liners: Collections, Hashtables, Arrays and Strings

  The way to learn PowerShell is to browse and nibble, rather than to sit down to a formal five-course meal. In his continuing series on PowerShell one-liners, Michael Sorens provides Fast Food for busy professionals who want results quickly and aren't too faddy. Part 3 has as its tasty confections - Collections, Hashtables, arrays and strings. "A real time saver" Andy Doyle, Head of IT ServicesAndy and his team saved time by automating backup and restores with SQL Backup Pro. Find out how much time you could save. Download a free trial now.

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• How can I make KDE faster in Ubuntu 12.04. It's very slow

  - by Rizwan Rifan

  I installed the kubuntu-desktop package in Ubuntu 12.04 LTS, but the problem is KDE responses very slowly. If I click on an application's icon to run it, it appears after 10 seconds and sometimes does not appear at all. It hangs all the time. The cursor is almost impossible to follow because of the lag. I have read on the Internet that Unity uses more memory and CPU than KDE. But on my PC Unity runs smoothly and KDE does not. So what should I do to make KDE as fast, responsive and smooth as Unity? My specifications are as follows: RAM: 1.5 GB (DDR2) Processor: 3 GHz Dual Core Graphics Card: Intel HD graphics with 256 MB memory.

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• Ubuntu 14.04 doesn't detect my discrete GPU

  - by user258887

  I recently purchased a laptop with an Nvidia GeForce 860m, and have installed Ubuntu 14.04. On my old laptop I had 12.04, which automatically filled Additional Drivers with Nvidia drivers. But on this computer, the only thing in Additional Drivers is Qualcomm. So I manually installed Nvidia, but X Server Settings doesn't seem to detect any GPU... lspci | grep VGA reports only my integrated Intel GPU, but lspci -v reports many things, including the Nvidia GPU: 01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 860M] (rev a2) Subsystem: ASUSTeK Computer Inc. Device 157d Flags: fast devsel, IRQ 16 Memory at ec000000 (32-bit, non-prefetchable) [size=16M] Memory at c0000000 (64-bit, prefetchable) [size=256M] Memory at d0000000 (64-bit, prefetchable) [size=32M] I/O ports at e000 [size=128] Expansion ROM at ed000000 [disabled] [size=512K] Capabilities: access denied Don't know what any of that means. Not sure if it's supposed to say 'access denied'... I need my GPU to do CUDA and OpenGL programming. What else can I do to figure out why this isn't working?

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• What do I need to know about Data Structures and Algorithms in the "real" world

  - by Ray T Champion

  I just finished the data structures and algorithms course in school , I took it during the summer so 6wks course vs a 16 wk course during the regular semester. So not only was the course hard but it was really really really fast. My question is what do I need to know about data structures in the real world? I understand what they do and how they work, for the most part, but I had a real tough time coding them , I wouldn't be able to write the code for a binary tree class or a balanced tree class from scratch .... Is that bad? should I retake it , or is knowledge of how they work sufficient, without being able to write the classes from scratch?

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• Are there plans for system-wide smooth scrolling?

  - by Matt

  As Ubuntu seems to be making strategic preparations for a tablet-like experience, I wondered what priority smooth scrolling is for the team. A use case: I read PDFs on a netbook on a daily basis. Even with fullscreen, I have to scroll about every 10-15 seconds. Without smooth scroll, I have to spend a half second or so to "find" my place. Even though it seems like a small inconvenience, the increments add up quite fast. As a result, I look enviously at owners of a certain well-known tablet far too often. Related bug: https://bugs.launchpad.net/gtk/+bug/868510

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• SFML: Monster following player on a straight line

  - by user3504658

  I've searched for this and found a few topics , usually they used a function normalize and using simple vector subtracting which is ok , but how should I do it in sfml ? Instead of using: Movement = p.position() - m.position(); p is the player and m is the monster I used something like this to move on a straight line: sf::Vector2f Tail(0,0); if((mPlayer.getPosition().y - mMonster.GetInstance().getPosition().y) >= (mPlayer.getPosition().x - mMonster.GetInstance().getPosition().x)){ //sf::Vector2f Tail(0,0); Tail.x = mPlayer.getPosition().x - mMonster.GetInstance().getPosition().x; } else if((mPlayer.getPosition().y - mMonster.GetInstance().getPosition().y) <= (mPlayer.getPosition().x - mMonster.GetInstance().getPosition().x)){ //sf::Vector2f Tail(0,0); Tail.y = mPlayer.getPosition().y - mMonster.GetInstance().getPosition().y; } if(!MonsterCollosion()) mMonster.Move(Tail * (TimePerFrame.asSeconds() * 1/2 ) ); It works ok if the the height = the width for the game window, although I think it's not the best looking game when it comes to a moving monster, since it starts fast and then it gets slower so what do you guys advise me to do ?

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• Java is very slow on my laptop

  - by Ryan McClure

  I have 1.6.0_30 JRE on my 11.10 install. I have 3 GB of RAM and an Intel Core2 Duo CPU T6600 @ 2.20GHz × 2. Whenever I use my Java to play a game, the Java runs at about 4-5 FPS. When I used Windows, I found that I could get around 40 FPS. I'm not too terribly worried about this, but are there settings that I can tweak that I don't know about? If not, why is it that JRE Java can't do as much on Ubuntu as it can on Windows? Also, this may be related but I'm not too sure--My fan runs very fast when running a Java application. Is there a correlation?

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• Excel 2013 Data Explorer and GeoFlow make 3-D maps quick and easy

  - by John Paul Cook

  Excel add-ins Data Explorer and GeoFlow work well together, mainly because they just work. Simple, fast, and powerful. I started Excel 2013, used Data Explorer to search for, examine, and then download latitude-longitude data and finally used GeoFlow to plot an interactive 3-D visualization. I didn’t use any fancy Excel commands and the entire process took less than 3 minutes. You can download the GeoFlow preview from here . It can also be used with Office 365. Start by clicking the DATA EXPLORER...(read more)

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• Web api authentication techniques

  - by Steve

  We have a asp.net MVC web service framework for serving out xml/json for peoples Get requests but are struggling to figure out the best way (fast, easy, trivial for users coding with javascript or OO languages) to authenticate users. It's not that our data is sensitive or anything, we just want users to register so we can have their email address to notify them of changes and track usage. In our previous attempt we had the username in the URI and would just make sure that username existed and increment db tables with usage. This was super basic but we'd notice people using demo as a username etc so we need it to be a little more sophisticated. What authentication techniques are available? What do the major players use/do.

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• How do I efficiently generate chunks to fill entire screen when my player moves?

  - by Trixmix

  In my game I generate chunks when the player moves. The chunks are all generated on the fly, but currently I just created a simple flat 8X8 floor. What happens is that when he moves to a new chunk the chunk in the direction of the player gets generated and its neighboring chunks. This is not efficient because the generator does not fill the entire screen. I did try to use recursion but its not as fast as I would like it to be. My question is what would be an efficient way of doing so? How does minecraft do so? When I say this I mean just the way it PICKS which chunks to generate and in what order. Not how they generate or how they are saved in regions, just the order/way it generates them. I just want to know what is a good way to load chunks around the player.

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• I can't find my "WIndows 8" Partition

  - by abhi_nash

  My girlfriend had her Dell Pre-Installed with Windows Vista when she bought it,then she upgraded it to Windows 7 and then 8.Since she wanted an Operating System which is fast and powerful i suggested Ubuntu for her.She runs a Dell Inspiron 1420 with 2 gigs of ram and an Nvdia 8400M GS,though the laptop is a bit old,it does her things like a dream. So,I have used a Flash Drive(8 Gigs) to install Ubuntu 13.04 on her system and used "Overwrite the Windows 8 OS".Then afterwards when I logged in I can't find any of her files which was on her WIndows 8 installation. Anyone know a work around with this?!

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• Can't login after forced shutdown

  - by user1205935

  I am on ubuntu 12.04 and forced a shutdown (hardware switch). Now I can't login anymore. In particular, after entering my password I get sent back to the login screen. The error message is to fast for me to read. I am, however, able to login into the Guest account through the usual login screen, and able to login into my own account on tty1 after pressing Ctrl+Alt+F1. What should I try to get back into my own account via the login screen and get back to a working desktop? Update: I can login with gdm, but not with the (default) lightdm. So the forced shutdown seems to have broken lightdm. The question now is, how do I fix a broken lightdm?

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• Silverlight Rough Cut Editor Real Time Highlights

  The NAB Show is an annual trade show produced by the National Association of Broadcasters. It is taking place in Las Vegas this week and you can check out Microsoft at the NAB Show 2010. It is interesting to watch the broadcast and web industry collide converge head on. With the launch of Silverlight 4 this morning one could say this week is a perfect storm. The media press releases from Microsoft are coming thick and fast. REDMOND, Wash. April 8, 2010 Microsoft Corp. today announced that...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• APress Deal of the Day 9/Jan/2011 - Pro Silverlight 3 in VB

  - by TATWORTH

  Today's $10 deal from APress at http://www.apress.com/info/dailydeal is Pro Silverlight 3 in VB Silverlight is a lightweight browser plug-in that frees your code from the traditional confines of the browser. It's a rules-changing, groundbreaking technology that allows you to run rich client applications right inside the browser. Even more impressively, it's able to host true .NET applications in non-Microsoft browsers (like Firefox) and on non-Microsoft platforms (like Mac OS X). Silverlight is still new and evolving fast, and you need a reliable guidebook to make sense of it.

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• ASP.NET Reports: How To Setup A Master Detail Report

  Check out this How-to Setup An ASP.NET Master-Detail Report video. The screencast shows easy it is to add master-detail information using the ASP.NET XtraReports Suite: The video pace is not too fast and covers what you need to build your first master-detail report. The video also builds on the previous ASP.NET Data-Aware Report. But dont worry, I cover that in the video too. Watch the How-to Setup An ASP.NET Master-Detail Report video and then drop me a line below with your thoughts. Thanks!...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Choosing the right version control system for .NET projects [closed]

  - by madxpol

  I'm getting ready for my first "bigger" .NET project (ASP.NET MVC 3/4) on which I'm going to lead another 2 programmers and right now I'm choosing the right version control system for the job (plus I'm gonna use it for my future development too). My problem is that I did't use any version control system before, so I would like it to have as fast learning curve and intuitive merging as possible. So far I quickly looked at VisualSVN (I like the Visual Studio integration in it), but I'm reading everywhere how Git is awesome and dunno which one to choose (not limited to these two).. Maybe I'm ovethinking this but I like when everything goes smoothly:) I'd like to hear some opinions from people who used multiple version control systems (preferably on VS projects) what do you think is the less complicated and effective version control system for such a use (one to 5 man projects)?

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• Programmer logbook application?

  - by jsoldi

  I've just released my application to the public, and I'm working on an updated version, but I really think I should keep track of ALL the code changes. In case some functionality suddenly starts failing, with a history of all the changes I made it would be a lot easier to figure out where I messed it up, in case the problem wasn't already there. The ideal would be to have a super fast computer with a huge hard drive and an application that automatically saves a backup of the whole project every time I change a line in the code, with some file comparison tool that would show me every difference between any two backed up projects, but that's not really possible for now. So, do you know any application that makes it easy for a programmer to keep track of the changes made to the source code?

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• Time tracker for lxde

  - by deshmukh

  I have only recently started using lxde. And I am liking it. It is blazing fast, not-at-all resource hungry and just does what I want. The only thing I am missing is a time tracker tool. I have been using Hamster Time Tracker on gnome for quite some time. In lxde, I can still launch the application. But there are no reminders when the time limit is up, etc. The time tracker is just another window. Is there any way to get hamster working in lxde with notifications for time-up and an icon in the panel, etc.? Alternatively, is there another application like Hamster that will do all that Hamster does and WORKS in lxde?

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• Has an open console any chance to give more strength to the indie game world ?

  - by jokoon

  I have heard about the GPX, but i don't really think the embedded market is mature enough in terms of performance, but what about the home console market ? I'm not talking about last-generation graphics, because that would be economically impossible, but what about an hardware as fast as a playstation 2/Xbox 1/Gamecube ? For games, the trick would be to ask some editors to recompile their best sellers for the new machine: those games being from the PSX age or even older console generations, I think this would have a very low cost job and they could still make some good profit, but I need to know if this is doable technically, considering the architecture which can be quite exotic. Do you think it would be a viable project to talk about to investors ?

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• Sales tracker that allows complex queries?

  - by feklee

  On a site, every click on a product should be registered by a sales tracker: price, type, etc. The sales tracker should provide an API so that complex queries can be performed, such as: Which products of a type "teapot" had a price below 20 EUR? Requirements: Recorded data should be available for querying no later than two hours after it has been recorded. For example, there are reports that Google Analytics may take up to 24h to update data. That is not acceptable. Querying doesn't need to be fast, but recording does (of course). Which sales tracker allows complex queries against collected data?

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