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• handling a GET error properly

  - by Andrew Heath

  I have a website that takes two primary get strings: ?type=GAME&id=SomeGameID ?type=SCENARIO&id=SomeScenarioID for reasons unknown, I have recently begun receiving requests for erroneous get strings from both Yandex and Baidu. They are always in the form of: ?type=GAME&id=SomeScenarioID None of my users are triggering these errors, so I am (sort of) confident that this is not due to an HTML template error somewhere on my part. There is also no HTTP_REFER showing up in the $_SERVER array, so I'm guessing these are direct requests from bad dbase data on their part. I see two options for dealing with these bad requests, and would like to know which is recommended... or if there are other, better options I have not thought of: simply 404 the request, since it is incorrect redirect the request to ?type=SCENARIO&id=SomeScenarioID because the scenario IDs are always valid, the breakage is due to asking for the wrong type.

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• View matrix question (rotate by 180 degrees)

  - by King Snail

  I am using a third party rendering API on top of OpenGL code and I cannot get my matrices correct. The API states this: We're right handed by default, and we treat y as up by convention. Since IwGx's coordinate system has (0,0) as the top left, you typically need a 180 degree rotation around Z in your view matrix. I think the viewer does this by default. In my OpenGL app I have access to the view and projection matrices separately. How can I convert them to fit the criteria used by my third party rendering API? I don't understand what they mean to rotate 180 degrees around Z, is that in the view matrix itself or something in the camera before making the view matrix. Any code would be helpful, thanks.

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• D3D11 how to simulate multiple depth channels

  - by Nock

  Here's what I'd like to achieve: Rendering a first pass of objects in my scene, using standard depth comparison Rendering another pass of objects in the same scene, but with the following rules: A Pixel of the 2nd pass always override the first pass (no depth compare between them) Use Depth comparison between pixels written from the second pass. In English I want depth comparison made inside each pass but I always want the second pass pixels to override the first pass ones. Some things I've thought: I tried to think about using stencil to solve this, but I couldn't find a way. I know I could render into a separate target the second pass then composite the result into the first, but I'd like to avoid that. I could use two separate Depth Buffer, one dedicated to each pass. (I never tried, but I figure it's possible to switch the depth buffer in a Render Target "on the fly") Any idea of the best solution? Thanks

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• Avoiding Hacker Trix

  - by Mike Benkovich

  Originally posted on: http://geekswithblogs.net/benko/archive/2014/08/20/avoiding-hacker-trix.aspxThis week we're doing a session called "Avoiding Hacker Trix" which goes thru some of the top web exploits that you should be aware of. In this webcast we will cover a variety of things including what we call the secure development process, cross site scripting attack, one click attack, SQL Injection and more. There are a bunch of links we cover, but rather than having you copy these down I'm providing them here... Links from the slide deck: Anti-XSS Library Download www.Fiddler2.com www.HelloSecureWorld.com Open Source Web Application Project - Top 10 Exploits Exploit: Cross Site Scripting - Paypal Exploit: SQL Injection - www.ri.gov Exploit: Cross Site Scripting - FTD Exploit: Insecure Direct Object Reference - Cahoots Exploit: Integer Overflow - Apple

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• Seeking some advice on pursuing MS in CS from Stanford or Carnegie Mellon or Caltech

  - by avi

  What kinds of projects are given preference in top notch colleges like Stanford, Caltech, etc to get admission into MS programme in Computer Science? I have an average academic portfolio. I'm pursuing Btech from a not so popular university in India with an aggregate of 67%. I'm good at designing algorithms and possess good knowledge of core subjects but helpless with my percentage. So, I think the only way I can impress them is with my project(s). Can anyone please suggest me the kinds of projects that are given preference by such top level institutes? Could you please also suggest some good projects? My area of interest would be Artificial Intelligence or any application/software/algorithm design which could be of some help to common people. Or if you have any other random idea for my project then please share it with me. Note: Web based projects and management projects like lib management wouldn't be my priority.

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• Unity-Animation parameters are not being set

  - by user1814893

  I have the following animation controller: with two parameters of walkingSpeed and Jump. I have the following code which should change the values: animator.SetFloat("walkingSpeed",0.9f); animator.SetBool("Jump",true); and animator is the correctly referenced animator object. However the values that the parameters are set to do not appear to change in the animator window, nor do they appear to impact what is happening on the screen. However they do seem to impact the values obtained when doing the following: animator.GetFloat("walkingSpeed"); The animator consists of the shown blend tree, which works correctly and is always active, however due to the values not being changed it does not blends, and always acts as if the value with which it blends (walkingSpeed is 0). What is going on?

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• Applications Menu disappeared

  - by Sophie Sperner

  I'm using Ubuntu 12.04, classic desktop without effects. Once the indicator-applet-complete (right part of the top panel) had been disappeared. I found how to fix it: Alt-Win-RightMouseClick on the panel, then "Add to the Panel", where choose "Indicator Applet Complete" to add. Now, the left part of the top panel (Applications Menu) has been disappeared! If I do Alt-Win-RightMouseClick on the panel, I can add only individual Menu sections like Internet, Office, Settings etc. But how to get back the full Menu as it ought to be?

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• compiz hiding unity and all menus

  - by Lennart Guldbrandsson

  After updating to Ubuntu 11.10, I was severly disturbed by Dash and wanted to go back to Ubuntu Classic. So I tried to read up, and found Compiz SettingsManager. In there, I clicked "on" never hide menus. For some reason this made all my menus at the top of the screen (volume, network, my login identity, and shutoff, etc) disappear - as well as the quickstart menu to the left (Unity). I am not very technical, so I have a hard time finding any programs now, and I just got on the internet by clicking on a link in a document, that I was fortunate to have on my Desktop. Without it, I wouldn't be able to ask for help. What I wish for is a) to get back the menu at the top, b) to restore the Ubuntu Classic without the irritating launcher and Dash, c) these two things to not disappear every time there is a new version of Ubuntu. Any help is greatly appreciated.

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• Should a poll framework be closed sourced

  - by samquo

  I was having a chat with a coworker who is working on a polling app and framework. He was asking technical questions and I suggested he open source the application to get more quality opinions from developers who are interested in this problem and are willing to give it heavy though. He has a different point of view which I think is still valid so I want to open this question for discussion here. He says he believes something like a polling framework should not be open sourced because it will reduce its security and validity as people reveal loopholes through which they can cheat. Can't say I completely disagree. I see a somewhat valid point there, but I always believed that solutions by a group of people are almost always better than a solution thought by a single person asking a small number of coworkers, no matter how smart that person is. Again I'm willing to accept that maybe some types of applications are different. Does anyone have an argument in his favor? I'd really like to present your responses to him.

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• 2013 EC Elections Results

  - by Heather VanCura

  The 2013 Fall Executive Committee (EC) Elections process is now complete.  Congratulations to the following JCP Members as the new and re-elected EC Members!   We had a slight increase in JCP Member voter turnout at ~25% (up from 24% in 2012).  All Ratified candidates and the top eight Elected candidates were elected by the JCP Membership.  As part of the transition to a merged EC, Members elected in 2013 are ranked to determine whether their initial term will be one or two years. The 50% of Ratified and 50% of Elected members who receive the most votes will serve an initial two-year term, while all others will serve an initial one year term (details below). Ratified Seats: Credit Suisse, Ericsson, Freescale, Fujitsu, Gemalto M2M, Goldman Sachs, Hewlett-Packard, IBM, Intel, Nokia, Red Hat, SAP, SouJava, Software AG, TOTVS and V2COM. Open Election Seats: Eclipse Foundation, Twitter, London Java Community, CloudBees, ARM, Azul Systems, Werner Keil and MoroccoJUG. Newly elected EC Members take their seats on Tuesday, 12 November 2013.  More information is available on the JCP Elections page. Detailed Election Results Voting Period: 15 - 28 October 2013. Number of Eligible Voters: 1088 Percent of Eligible Members Casting Votes: 24.77% Ratified Seats: Candidate Yes Votes (%) No Votes (%) Abstentions Credit Suisse (2year term) 196 (84) 38 (16) 36 Ericsson (2 year term) 196 (88) 27 (12) 47 Freescale (1 year term) 151 (74) 53 (26) 66 Fujitsu (2 year term) 194 (87) 29 (13) 47 Gemalto M2M (1 year term) 170 (80) 42 (20) 58 Goldman Sachs (1 year term) 143 (64) 80 (36) 47 Hewlett-Packard (2 year term) 191 (82) 43 (18) 36 IBM (2 year term) 226 (91) 22 (9) 22 Intel (2 year term) 214 (90) 24 (10) 32 Nokia (1 year term) 139 (64) 78 (36) 53 Red Hat (2 year term) 245 (95) 12 (5) 13 SAP (1 year term) 166 (75) 56 (25) 48 SouJava (2 year term) 226 (92) 19 (8) 25 Software AG (1 year term) 167 (78) 47 (22) 56 TOTVS (1 year term) 129 (69) 59 (31) 82 V2COM (1 year term) 135 (71) 54 (29) 81 Open Election Seats: The top eight candidates have been elected; the top four receive a two year term, and the next four receive a one year term. Candidate Votes (%) Eclipse Foundation (2 year term) 221 (14) Twitter (2 year term) 203 (13) London Java Community (2 year term) 191 (12) CloudBees (2 year term) 179 (11) ARM (1 year term) 176 (11) Azul Systems (1 year term) 166 (10) Werner Keil (1 year term) 128 (8) MoroccoJUG (1 year term) 93 (6) Karan Malhi 56 (3) ChinaNanjingJUG 51 (3) JUG Joglosemar 47 (3) Viresh Wali 45 (3) ITP_JAVA 44 (3) None of the Above 3 (0)

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• Grub does not autoboot the default option after upgrade to 12.10

  - by Petr Kozelka

  I recently upgraded Ubuntu from 12.04 to 12.10 and since that time, the system does not automatically boot. It always opens the boot menu, and I have to press Enter to make it boot Ubuntu. It seems to be ignoring the timeout value, and using a 'neverending' timeout. There are no other systems (no dual boot), only the options originally installed by default Ubuntu 12.04 installation. My /etc/default/grub has only these effective options: GRUB_DEFAULT='Ubuntu' GRUB_HIDDEN_TIMEOUT=1 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=1 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" GRUB_CMDLINE_LINUX="" GRUB_TERMINAL=console I experimented with GRUB_DEFAULT, giving it values '0', '1', 'Ubuntu' but nothing helps. Yes I always run update-grub afterwards. How can I make the system booting again ?

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• SQL SERVER – Retrieving Random Rows from Table Using NEWID()

  - by pinaldave

  I have previously written about how to get random rows from SQL Server. SQL SERVER – Generate A Single Random Number for Range of Rows of Any Table – Very interesting Question from Reader SQL SERVER – Random Number Generator Script – SQL Query However, I have not blogged about following trick before. Let me share the trick here as well. You can generate random scripts using following methods as well. USE AdventureWorks2012 GO -- Method 1 SELECT TOP 100 * FROM Sales.SalesOrderDetail ORDER BY NEWID() GO -- Method 2 SELECT TOP 100 * FROM Sales.SalesOrderDetail ORDER BY CHECKSUM(NEWID()) GO You will notice that using NEWID() in the ORDER BY will return random rows in the result set. How many of you knew this trick? You can run above script multiple times and it will give random rows every single time. Reference: Pinal Dave (http://blog.sqlauthority.com)   Filed under: PostADay, SQL, SQL Authority, SQL Function, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• Presenting agile estimates for Pivotal Tracker project

  - by Tom Styles

  I've been developing for 6-7 years but never in a particularly agile way. With the latest project I'm trying to make our development process more professional, and more agile. We're using Pivotal Tracker to track the project and have gathered some pretty well thought out stories. We're also trying to keep some of our (Prince2/Waterfall mindset) project managers happy. So far I've got them to accept that requirements always change priorities always change some of the requirements won't be delivered if you fix the time scale you should fix the time scale short sprints and regular review is good However they still feel like they need to get a better grip of roughly how much will be delivered within a certain time. I've come up with a spreadsheet to demonstrate what we might expect to get done in a range of 4 different timescales. Questions Are we setting ourselves up to fail Are there better ways to do this

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• need advice for small css issue [migrated]

  - by JaPerk14

  I have a small design problem in my css, and I'd like to know if someone could check it out for me. The design problem is in the rollover effect of my horizontal navigation. There seems to be some sort of added margin or padding, but I'm having trouble finding the problem in the css. I will paste the code I'm using below, so you can see for yourself. You won't be able to see the problem until you rollover the navigation list items. HTML: <div class="Horiznav"> <ul> <li id="active"><a href="#">Link #1</a></li> <li><a href="#">Link #2</a></li> <li><a href="#">Link #3</a></li> <li><a href="#">Link #4</a></li> <li><a href="#">Link #5</a></li> </ul> </div> CSS: .Horiznav { background: #1F00CA; border-top: solid 1px #fff; border-bottom: solid 1px #fff; } .Horiznav ul { font-family: Arial, Helvetica, sans-serif; font-weight: bold; color: #fff; text-Align: center; margin: 0; padding-top: 5px; padding-bottom: 5px; } .Horiznav ul li { display: inline; } .Horiznav ul li a { padding-top: 5px; padding-bottom: 5px; color: #fff; text-decoration: none; border-right: 1px solid #fff; } .Horiznav ul li a:hover { background: #16008D; color: #fff; } #active a { border-left: 1px solid #fff; }

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• DevExpress Wins #1 Publisher Award

  Thanks to loyal and awesome customers like you, DevExpress recently won several bestseller awards from Component Source. This morning at TechEd 2010, Chris Brooke from Component Source dropped by to present the top #1 Publisher award: Thanks for your support! DXperience? What's That? DXperience is the .NET developer's secret weapon. Get full access to a complete suite of professional components that let you instantly drop in new features, designer styles and fast performance 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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• Inside Apple's Huge New Application Development Industry

  Top iPad developer Weather HD reveals its app sales data and estimates industry-wide figures.

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• Inside Apple's Huge New Application Development Industry

  Top iPad developer Weather HD reveals its app sales data and estimates industry-wide figures.

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• Cuda GeForce GT 555m (on Ubuntu 12.04 (Virtual Box))

  - by bobby

  I am running Ubuntu 12.04 in a Virtual Box as guest OS. Today I have tried to enable all functions of my graphic card under Ubuntu. But all my efforts were off the mark... because my experience with Linux is relatively small... I have tried the procedure which is described as in http://sn0v.wordpress.com/2012/05/11/installing-cuda-on-ubuntu-12-04/. Running the cuda-filepack always lead to an error like "installing driver canceled". Then I have tried to install the Bumblebee project. But I always get the error that the bumblebee daemon is not started. After some internet research I found a test-command lspci -nn | grep '[030[02]]' which results in 00:02.0 VGA compatible controller [0300]: InnoTek ... [80ee:beef] I've been trying to activate the card you for hours without success. Could you please give me some hints how to activate CUDA? Kind regards

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• Why do employers care so much about GPA?

  - by Recursion

  I went to a pretty good engineering school and did CS. I graduated with a 2.86 gpa and really tried my best. I even took a few graduate classes in place of undergrad courses to challenge myself. I really liked those a lot. But the second question I am always asked is "What was your gpa?", this of course always comes after "How are you today?". Once I tell them either 2.86 or a rounded 2.9 they immediately shut off. I have even had them stop the interview saying the 3.0 is the cut off. Does a tenth of a point really mean that much?

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• How to write efficient code in spite of heavy deadlines

  - by gladysbixly

  Hi all, I am working in an environment wherein we have many projects with strict deadlines on deliverables. We even talk directly to the clients so getting the jobs done and fast is a must. My issue is that i'd always write code for the first solution that comes to my mind, which of course I thought as best at that moment. It always ends up ugly though and i'd later realize that there are better ways to do it but can't afford to change due to time restrictions. Are there any tips by which I could make my code efficient yet deliver on time?

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• CTIA Looks Ahead on 2010 Agenda Plans

  Spectrum and Net Neutrality fights will be top of mind for CTIA executives.

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• How to move a line of sprites in a sine wave?

  - by electroflame

  So, I'm spawning a horizontal line of enemies that I would like to have move in a nice wave. Currently I tried: Enemy.position.X += Enemy.velocity.X; Enemy.position.Y += -(float)Math.Cos(Enemy.position.X / 200) * 5; This...kind of works. But the wave is not a true wave. The top and bottom of one pass are not the same (e.g. 5 for the top, and -5 for the bottom (I don't mean literal points, I just meant that it's not symmetrical)). Is there a better way to do this? I would like the whole line to move in a wave, so it looks fluid. By that, I mean that it should look like each enemy is "following" the one in front of it. The code I posted does have this fluidity to it, but like I said, it's not a perfect wave. Any ideas? Thanks in advance.

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• SilverlightShow for 20-26 Dec 2010

  - by Dave Campbell

  Check out the Top Five most popular news at SilverlightShow for last week (20 - 26 Dec 2010). The most popular news for last week is Ryan Alford's solution on handling an error in Silverlight 4 when using Entity Framework 4, followed by Jeremy Likness' video on building an RSS Feed Reader in Silverlight. Here is SilverlightShow's weekly top 5: Silverlight 4 - Productivity Power Tools and EF4 A Silverlight MVVM Feed Reader from Scratch in 30 Minutes Resizable Grid Using Thumb Controls A Simplified Grid Markup for Silverlight and WPF Announcing the Winner of Telerik Silverlight controls in SilverlightShow Post-webinar Survey Visit and bookmark SilverlightShow. Stay in the 'Light

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• Beggining OpenGL vs beggining DirectX and some question about the philosophical difference between them

  - by jokoon

  I'm begginning with Direct X at school, and my teacher said it was harder to begin with than OpenGL, but I read several things that in fact, Direct X was more advanced than OpenGL in terms of recent graphic cards features. Since I'm far from wanting to do top notch effects, which can already be implemented with existing engines and/or shaders, I wanted to know your opinion: Can OpenGL be considered like a more basic, KISS, hardware agnostic, graphic library to just do 3D with acceleration, and consider DirectX like a top notch, game-oriented graphic API that will always support the next-gen 3D chips ? Citation from wikipedia on http://en.wikipedia.org/wiki/Id_Tech_5 : John Carmack mentioned in his keynote at QuakeCon 2007 that the id Tech 5 engine will not be using the DirectX 10 API. I don't want to seem like I'm minding open source because Carmack does and because he is famous, it's just that android and iPhone are out there, and Direct X doesn't seems to me to be the necessary API to know, since Windows supports OpenGL, and since the 360 is just a console among other consoles.

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• Can not get to login screen, background starts with terminal prompt only

  - by Doug

  my uncle has Ubuntu on his work PC. Basically I came in to work today, and he had lost his UNITY side bar. I told him start with just rebooting it. He rebooted it... now it does not even get to the login screen. It gets to the background with the word UBUNTU, and the 6 or 7 dots, does it's little loading dot thing... then stops, and a black terminal opens on the top left with the background still in place. Personally, I think he screwed it up himself. He always swears he didn't touch anything, but I know better... Either way, I can't get him back into the desktop to even see if the sidebar is back. He's always screwing around pressing the wrong buttons on the login screen, hitting admin things and such... Any ideas?

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