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• How do freelancers know how much their work is worth?

  - by Qmal

  I want to start a bit of freelancing in web development using ASP.NET MVC3 and PHP and I already have some people who are interested in hiring me, but I still can't figure out how much to charge for projects since I have never done it. For example how much would this site cost? Would it cost more if the author built it from scratch instead of using WordPress as the CMS? Or what about a simpler site like this? How much time spent is considered good/normal for building sites like these? And maybe some freelancers with experience can tell me what the usual requests are that they get from clients. What sites are the most in demand? I'm asking because I'm a student and I really can't work every day in a full-time job but I need the money so I guess a little freelancing would help me out.

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• How to make a Stop Motion or Time-lapse video with webcam?

  - by Seppo Erviälä

  I have a webcam that works as a v4l2 device. What is the most convenient way to capture either a stop-motion or time-lapse video? N.B. stop-motion and time-lapse are related but conceptually different. Time-lapse is where you take a photo of a scene at a set interval and then combine it into a video (that looks like it's going really fast). Stop-motion is where you control the scene and take an image for every change you make, to form an animation (eg Wallace and Grommit). An application for time-lapse needs to be able to take a photo at a set interval.

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• Only MKV format available in HandBrake

  - by Steve Ellis

  I am running Ubuntu 14.04 LTS 32 bit. I have installed HandBrake rev5474 (i686), which I believe is the latest, and the Ubuntu Restricted Extras. I am able to play DVDs via VLC but when it comes to ripping them, so that I can back them up to my Twonky media server, I have issues. I launch HandBrake and find that the only format available for me to select is MKV. When I used to run Handbrake on this machine while I was running Ubuntu 13.10 and lower I had no issues and **lots of formats (including MP4 which is what I'm really after) but since reformating and installing 14.04 I've had this issue. Any help would be much appreciated.

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• Official and unofficial apps in the iOS, WP7, and Android marketplaces

  - by Bil Simser

  The last few months have seen people complaining about the lack of "official" apps in the Windows Phone marketplace. In fact a couple of months ago I wrote about this very thing here and if we really needed these official apps or could get by with third-party solutions. Recently a list of "Top 100 Mobile Apps" crossed my desk and it was curious. 40 iPhone apps, 40 Android apps, 10 WP7 apps, and 10 BlackBerry apps. Really? 10 for WP7? So I wondered if the media was just playing this up and maybe continuing to do what I think most vendors are doing which is treating Windows Phone as the red-headed step-child you keep in the basement while all along there's nothing wrong with them. I put together the list and went digging to see how many of the top 40 iOS and Android apps were also on the Windows Phone platform (sorry BlackBerry, you should just shut your doors right now). Here's the results. Note, these are all *free* apps. There might be other pay apps that have official representation across all mobile devices, I just chose to hunt these ones down because I'm cheap. In the top 40, I easily plucked out 20 that had official apps on all three platforms. These were: Amazon Mobile, ESPN Score Centre, Evernote, Facebook, Foursquare, Google Search, IMDB, Kindle, Shazam, Skype (yes, I know, in beta on WP7), SlackerRadio, The Weather Channel, TripIt, Twitter, Yelp, Flixster, Netflix, TuneIn Radio, Dictionary.com, Angry Birds, and Groupon. Hey, that's pretty good IMHO. 20 or so apps, all free, and all fully functional and supported (and in some cases, even better looking on the Windows Phone platform than the other platforms). A dozen or so more apps had official apps on some platforms but not all, so yes, there are gaps here. Here's a rundown of the hangers-on: Adobe Photoshop Express This looks great on the iOS platform and there's even an official version on droid. Hope Adobe brings this to WP7. There are other photo editing programs though if you go looking (maybe we can get Paint.NET to be ported to the phone?) BBC News A few apps offer news feeds but nothing official on the Windows Phone. The feeds are good but without video this app needs some WP7 love. Dropbox Again Windows Phone looses out here with no official app. There are a few third party ones that will help you along and offer most of the functionality that you need but no integration that an official app might bring. Epicurious Droid seems to be the trailer here as there are apps for it but nothing official (from what I can tell). Both iOS and WP7 have them. Flipboard It's sad with Flipboard as it's such a great newsreader. The only offiical app is for iOS but frankly the iPhone version looks horrible so without a tablet the experience here isn't that hot. Maybe with WP8. Currently there's nothing even remotely similar to this on the other platforms. Google+ Is anyone still using this? No official app for WP7 but some clones. Apparently there's no API so people are just screen scraping. Ugh. Mint.com This app has all kinds of buzz and a lot of votes on the application requests site. Official apps for iOS and droid. No WP7 love (yet). TED Quite a few TED apps on WP7 but nothing official. I think the third party ones suffice and some are pretty nice looking, taking advantage of the Metro interface and making for a good show. WebMD There's a third party app on WP7 here but nothing official. It seems to contain all the same information and functionality the official apps do so not sure if an official one is needed but its here for inclusion. The other apps in the top 40 were either very specific to the platform (for example all three of them have a "Find my Phone" app). There are others that are missing out on the WP7 platform like ooVoo, Words With Friends, and some of the Google apps (Google Voice for example). Since you can integrate your GMail account right into the Windows Phone (via linked inboxes) I'm not sure if there's a need for an official GMail app here. Looking at the numbers Windows Phone still gets the worst of the deal here with half a dozen highly popular "offical" apps that exist on the other mobile platforms and in some cases, nothing even remotely similar to the official app to compare. This doesn't include things like Instagram, PInterest, and others (don't get me started on those). Still, with over 20+ highly popular free apps all represented on all three mobile platforms I don't think it's a bad place to be in. The Windows Phone platform could get a little more love from the vendors missing here, or at least open up your APIs so the third party crowd can step in and take up the slack. P.S. these are just my observations and I might have got a few items wrong. Feel free to chime in with missing or incorrect information. I am after all human. Well, most of me is.

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• Google Site Search -- How to use as API?

  - by John Isaacks

  I am trying to get an API that I can use to do searches on my own site. Google has something called site search and something called custom search. What is the difference? I make a new site search, then it is listed on a page with "custom search" in the heading. This is really confusing. I just want an API that I can use to search my site. I would prefer json to xml as the results. And if this service is offered by someone other than Google, that is fine too. The ones that I create at Google want me to embed a premade search box into my site. I do not want that, I want an API that I can call from PHP or JS. How can I get this?

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• What options do I have for game hosting.

  - by Jonathan Kaufman

  DISCLAIMER: I know this question starts to leave development island but it is very game development related and still think this is the best place. I see many free MMOs/online desktop client games out there. I am baffled at the ability to fund such. I don't mind hosting myself but would at least like to have someone host a matchmaking service. If these indie devs really are pouring money down the server drain then I'm screwed but if some one can "learn me" :) some alternatives I would greatly appreciate it.

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• How to integrate game logic in game engines

  - by MahanGM

  Recently I'm working on a 2d game engine example in .Net with C#. My main problem is that I can't figure out how I should include the game logic within the game. Currently I have a base engine which is a set of classes that they are running sub-systems like Render, Sound, Input and Core functionality. There is an editor which helps the user to add resources, build levels, write scripts and other stuffs. I came up with an idea to use Reflection and CSharpCodeProvider from my editor to compile the written code. This way I can get an executable of my product too. This way is quite well but I would like to know what's really the solution and architecture to do this. My engine's role is 2d platform. The scripting language is C# right now because I can't consist any other embeddable language for now. The game needs compilation and CSharpCodeProvider is the only way for me to do it meantime.

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• Design patterns and multiple programming languages

  - by Eduard Florinescu

  I am referring here to the design patterns found in the GOF book. First, how I see it, there are a few peculiarities to design pattern and knowing multiple languages, for example in Java you really need a singleton but in Python you can do without it you write a module, I saw somewhere a wiki trying to write all GOF patterns for JavaScript and all the entries were empty, I guess because it might be a daunting task to do that adaptation. If there is someone who is using design patterns and is programming multiple languages supporting the OOP paradigm and can give me a hint on how should I approach design patterns. An approach that might help me in all languages I use(Java, JavaScript, Python, Ruby): Can I write good application without knowing exactly the GOF design patterns or I might need just some of them which might be crucial and if yes which one, are there alternatives to GOF for specific languages, and should a programmer or a team make their own design patterns set?

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• Learning Python is good?

  - by user15220

  Recently I have seen some videos from MIT on computer programming topics. I found it's really worth watching. Especially the concepts of algorithms and fundamental stuffs. The programs were written and explained in Python. I never had looked into this language before as I learned and doing stuffs with C/C++ programming. But the cleanliness and better readability of syntax attracted me. Of course as a C++ programmer for long time it's the most readable language for me. Also I heard Python library contains solid algorithms and data-structures implementations. Can you share your experience in this language?

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• We're Back: I'm Here

  - by [email protected]

  After a busy Fall and Winter post-Oracle OpenWorld 2009 Oracle's Application Strategy Blog is back. More on what we've been up to shortly. Me, I'm blogging here for the first time. After nearly 6 years at Oracle working on the Oracle Fusion Middleware business I've recently joined the Oracle Applications team. For me, what's old is new again. Prior to working on applications infrastructure at Oracle...and at BEA Systems before that...I worked at PeopleSoft in a number of roles spanning Enterprise Performance Management, Supply Chain, Public Sector and Financial Services and more. Some of the acronyms are the same, there are (of course) some new ones too. But what I'm really excited about is the intersection of Enterprise Applications and Applications Infrastructure that's happening right now. "Aligning IT with Business Strategy" has been the buzzphrase for longer than we can all remember---but what I've seen over the past 5 months makes me start to believe that it's finally starting to happen.

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• what is the simplest 3d software for unity?

  - by kdavis8

  Ive heard a lot about Daz studio, Poser, Maya, K-3d, Anim8or, Blender, and all the rest. My question is which one is the best choice in terms of simplicity and quality. price is not an issue really. I'm programming games in java for android mobile devices at the moment but i will eventually move onto larger platforms. I would like to utilize unity3d for the game programming itself and utilize a 3d modeling software just to create the game objects. I just need to know the best one to get started with from scratch or should i use a combination of multiple ones? Any insight for this would be great, thanks!

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• Do higher resolution laptop displays matter for programmers?

  - by Jason Baker

  I'm buying a new laptop that I'll be using mainly for programming. A couple of options that really intrigue me are the Asus Zenbook UX31A and the new Retina Macbook Pro. It's obvious that the high-resolution displays on these laptops is useful for entertainment, photo-editing, and other things. My question is this: Do these displays provide any benefit for programmers? Do these displays make code any easier to read? Are they any easier on the eyes after a whole day of staring at the screen?

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• My First Weeks at Red Gate

  - by Jess Nickson

  Hi, my name’s Jess and early September 2012 I started working at Red Gate as a Software Engineer down in The Agency (the Publishing team). This was a bit of a shock, as I didn’t think this team would have any developers! I admit, I was a little worried when it was mentioned that my role was going to be different from normal dev. roles within the company. However, as luck would have it, I was placed within a team that was responsible for the development and maintenance of Simple-Talk and SQL Server Central (SSC). I felt rather unprepared for this role. I hadn’t used many of the technologies involved and of those that I had, I hadn’t looked at them for quite a while. I was, nevertheless, quite excited about this turn of events. As I had predicted, the role has been quite challenging so far. I expected that I would struggle to get my head round the large codebase already in place, having never used anything so much as a fraction of the size of this before. However, I was perhaps a bit naive when it came to how quickly things would move. I was required to start learning/remembering a number of different languages and technologies within time frames I would never have tried to set myself previously. Having said that, my first week was pretty easy. It was filled with meetings that were designed to get the new starters up to speed with the different departments, ideals and rules within the company. I also attended some lightning talks being presented by other employees, which were pretty useful. These occur once a fortnight and normally consist of around four speakers. In my spare time, we set up the Simple-Talk codebase on my computer and I started exploring it and worked on my first feature – redirecting requests for URLs that used incorrect casing! It was also during this time that I was given my first introduction to test-driven development (TDD) with Michael via a code kata. Although I had heard of the general ideas behind TDD, I had definitely never tried it before. Indeed, I hadn’t really done any automated testing of code before, either. The session was therefore very useful and gave me insights as to some of the coding practices used in my team. Although I now understand the importance of TDD, it still seems odd in my head and I’ve yet to master how to sensibly step up the functionality of the code a bit at a time. The second week was both easier and more difficult than the first. I was given a new project to work on, meaning I was no longer using the codebase already in place. My job was to take some designs, a WordPress theme, and some initial content and build a page that allowed users of the site to read provided resources and give feedback. This feedback could include their thoughts about the resource, the topics covered and the page design itself. Although it didn’t sound the most challenging of projects when compared to fixing bugs in our current codebase, it nevertheless provided a few sneaky problems that had me stumped. I really enjoyed working on this project as it allowed me to play around with HTML, CSS and JavaScript; all things that I like working with but rarely have a chance to use. I completed the aims for the project on time and was happy with the final outcome – though it still needs a good designer to take a look at it! I am now into my third week at Red Gate and I have temporarily been pulled off the website from week 2. I am again back to figuring out the Simple-Talk codebase. Monday provided me with the chance to learn a bunch of new things: system level testing, Selenium and Python. I was set the challenge of testing a bug fix dealing with the search bars in Simple-Talk. The exercise was pretty fun, although Mike did have to point me in the right direction when I started making the tests a bit too complex. The rest of the week looks set to be focussed on pair programming with Mike as we work together on a new feature. I look forward to the challenges that still face me and hope that I will be able to get up to speed quickly. *fingers crossed*

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• I can't figure out how to animate my loaded model with Assimp

  - by Brendan Webster

  I have loaded in a model to my C++ OpenGL game. It is a COLLADA file type that I have loaded, and I setup an animation under blender for the file. The problem is I don't know how to animate the model. The Assimp documentation didn't really help me out. Their source code didn't use animations, and I can't seem to find anywhere online that someone explains how to animate your loaded model... I'm sorta wondering if someone could link me to a helpful website, or maybe just help me out, so that maybe I will understand how to do animations with assimp.

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• Video recording in cheese is slow

  - by Gaurav Butola

  cheese records at painful fps. video recording is really slow in cheese almost unusable. How can I increase the fps for cheese. I have HCL laptop with built in 1.3 MP camera 2.47 GHz i3 processor with 2 GB RAM. running maverick 32 bit. I installed camorama from software centre which has fine video (fps), but I cant seem to use it due to some error. So I doubt there is something to be tweaked with cheese itself.

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• Starting a career in quantitative finance

  - by Vitor Braga

  I've been reading John Hull book (Options, Futures and Other Derivatives) mostly on curiosity. I've read other books about financial markets in the past (like Elder's Trading for Living and the novel Reminiscences of a Stock Operator). But I'm really hooked by the John Hull book. My background is mostly scientific computing: number crunching, visualization and image processing. Mostly in C++, with some C, Fortran, Python, Ruby here and there. I've been thinking on moving on to quantitative finance - I'd like to do that. What would be the best way to start? Any tips?

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• Books or help on OO Analysis

  - by Pat

  I have this course where we learn about the domain model, use cases, contracts and eventually leap into class diagrams and sequence diagrams to define good software classes. I just had an exam and I got trashed, but part of the reason is we barely have any practical material, I spent at least two good months without drawing a single class diagram by myself from a case study. I'm not here to blame the system or the class I'm in, I'm just wondering if people have some exercise-style books that either provide domain models with glossaries, system sequence diagrams and ask you to use GRASP to make software classes? I could really use some alone-time practicing going from analysis to conception of software entities. I'm almost done with Larman's book called "Applying UML and Patterns An Introduction to Object-Oriented Analysis and Design and Iterative Development, Third Edition". It's a good book, but I'm not doing anything by myself since it doesn't come with exercises. Thanks.

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• Doing an SNES Mode 7 (affine transform) effect in pygame

  - by 2D_Guy

  Is there such a thing as a short answer on how to do a Mode 7 / mario kart type effect in pygame? I have googled extensively, all the docs I can come up with are dozens of pages in other languages (asm, c) with lots of strange-looking equations and such. Ideally, I would like to find something explained more in English than in mathematical terms. I can use PIL or pygame to manipulate the image/texture, or whatever else is necessary. I would really like to achieve a mode 7 effect in pygame, but I seem close to my wit's end. Help would be greatly appreciated. Any and all resources or explanations you can provide would be fantastic, even if they're not as simple as I'd like them to be. If I can figure it out, I'll write a definitive how to do mode 7 for newbies page. edit: mode 7 doc: http://www.coranac.com/tonc/text/mode7.htm

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• HD flash video lagging on LG R400

  - by dhojgaard

  I'm installing Ubuntu on my friends laptop. An LG R400 with ATI Mobility Radeon X2300 graphics drivers. On Windows Vista which runs pretty slow the HD flash videos 1080p on Youtube vimeo and other places work with no problems, but on Ubuntu i can not really play videos above 480p Above that they are lagging. That annoys me because i know he will use them, and how am i supposed to convince him that Ubuntu is the way to go if it can not play the videos that windows vista can? Unity 3d is working fine so i think the graphics drivers is working, and when i download the hd videos and play as mp4 in vlc they also work fine. lspci -nn | grep VGA shows the following: 01:00.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI Mobility Radeon X2300 Hope that someone can help me convince my friend that Ubuntu is rocking!

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• LSP vs OCP / Liskov Substitution VS Open Close

  - by Kolyunya

  I am trying to understand the SOLID principles of OOP and I've come to the conclusion that LSP and OCP have some similarities (if not to say more). the open/closed principle states "software entities (classes, modules, functions, etc.) should be open for extension, but closed for modification". LSP in simple words states that any instance of Foo can be replaced with any instance of Bar which is derived from Foo and the program will work the same very way. I'm not a pro OOP programmer, but it seems to me that LSP is only possible if Bar, derived from Foo does not change anything in it but only extends it. That means that in particular program LSP is true only when OCP is true and OCP is true only if LSP is true. That means that they are equal. Correct me if I'm wrong. I really want to understand these ideas. Great thanks for an answer.

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• Wifi works but doesn't start automatically on ubuntu 11.10

  - by Nikita Kononov

  Good evening everyone, I have got an issue which I hope you will help me to solve. I was trying to update my Kernel in ubuntu from this web-site http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.2-rc4-oneiric/ And everything went smooth. But, for some reason, my wifi doesn't work in new Kernel so I decided to switch back to my old one 3.0.0-17 generic and to my surprise WIFI doesn't start automatically eventhou it was working. What I mean is that I have to click on wifi icon and put a mark Enable Wireless. This is not a really serious issue but I don't like switch on everytime at log in my WIFI because before that it was working when system started. What is the cause of this and how to fix it. Thank you very much for you help.

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• Windows Phone 7 Development &ndash; Useful Links

  - by David Turner

  Here are some excellent links for anyone developing for Windows Phone 7: J.D. Meier’s Windows Phone Developer Guidance Map – this is immense.  Also check out the Silverlight version Justin Angel’s site – some really great articles on unlocked roms, automation and Continuous Integration Windows Phone 7 Development Best Practices Wiki Jeff Blankenburg’s 31 days of Windows Phone 7 This post of Links to sample code for Windows Phone Tim Heuers blog, particularly this post of Tips and Tricks Kevin Marshall's blog, particularly the epic WP7 Development Tips Part 1 post Code Samples for Windows Phone on MSDN If you have unlocked your phone for development, then you can use the WPConnect tool to connect to the device rather than using the Zune client.  I found it useful to pin a shortcut to WPConnect in my Start Menu. The Performance Counters displayed when you debug your app on a device are useful for seeing things like frame rate and memory usage, this page on MSDN explains what the numbers mean.  Jeff Blankenburg covers this in more details on his blog I also came across this set of links to tutorials recently which looks very useful. Creating Windows Phone 7 Application and Marketplace Icons: http://expression.microsoft.com/en-us/gg317447.aspx

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• Interesting conversation about the nature of info-wars

  - by Malcolm Anderson

  Over at Schlock Mercenary, Howard Taylor has started a facinating conversation on the nature of Info-Wars. As Howard puts it:   Somebody (I forget who) tweeted that the Wikileaks fight right now is the first infowar in history. I disagree. I think we've fought numerous infowars in the last fifteen years. And that's really what I want to see discussed in the comments. We can argue right and wrong until the eCows come 127.0.0.1 but nobody is going to walk away convinced. I want to see a list of information-age conflicts that you feel qualify as "infowar." Me, I think the RIAA vs file-sharing qualifies. My buddy Rodney suggested RBLs vs Spammers (the spammers won that one.) Somebody pointed out that the Secret Service raid on Steve Jackson Games back in the 80's might qualify.

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• Upgrade Workshop in Wellington - Recap

  - by Mike Dietrich

  Wow! Wellington is really a wonderful city - except for the weather situation But it was the first time that Roy and me did arrive to a workshop with a ferry boat. We flew in on Friday to Christchurch (btw, this was the longest customs and border control I've ever went through - and I traveled to Israel by Bus via Allenby Bridge from the West Bank some years ago - it took us two hours to go through immigration and customs in the night from Friday to Saturday) and drove up the Southern Island. Very nice Great landscapes, great wines and great people! I'f you'd like to download the slides please download them from the Slides Download section to your right. And next time you'll have to ask more questions Don't be this shy - Roy and me (usually) don't bite -Mike

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• What exactly is UV and UVW Mapping?

  - by Michael Stum

  Trying to understand some basic 3D concepts, at the moment I'm trying to figure out how textures actually work. I know that UV and UVW mapping are techniques that map 2D Textures to 3D Objects - Wikipedia told me as much. I googled for explanations but only found tutorials that assumed that I already know what it is. From my understanding, each 3D Model is made out of Points, and several points create a face? Does each point or face have a secondary coordinate that maps to a x/y position in the 2D Texture? Or how does unwrapping manipulate the model? Also, what does the W in UVW really do, what does it offer over UV? As I understand it, W maps to the Z coordinate, but in what situation would I have different textures for the same X/Y and different Z, wouldn't the Z part be invisible? Or am I completely misunderstanding this?

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