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  • What developer conferences are you going to this year?

    - by mbcrump
    This short list is what I consider to be the “cream-of-the-crop” in developer conferences. This is also a list of the conferences that I plan on attending in 2011. If you feel your conference is just as good, then shoot me an email at [michael[at]michaelcrump[dot]net, and if possible I will check it out.   In-Person Event Las Vegas on April 18th-22nd, 2011 Redmond on October 17th-21st, 2011 Orlando on December 5th-9th, 2011 Visual Studio Live – I attended this event in November of last year and blogged about my experience. I am also planning on going back to the Orlando session in December of this year. So what did I like the most about this event? Being able to interact one-on-one with a majority of the speakers. If you read my blog post then you will see a list of the speakers that I met up with. I also made a lot of great connections with other professional developers all over the world. They are having an event in Las Vegas on April 18th-22nd. I noticed at this event that they have added a new track on mobile. Being a big fan of mobile, I feel that this is a great move. They also have a great selection for Silverlight Developers including Billy Hollis and Rocky Lhotka. For the full lineup of conference tracks, sessions and speakers visit http://bit.ly/VSLiveTrks. If you are interested in this then you can register here by February 16th. I must add that you can save $300 bucks by getting the early-bird special.   Virtual Conference SSWUG (DBTechCon) - holds the largest virtual conference in the information technology industry. It is also special to me because they selected a majority of my Silverlight content for the April conference. No traveling fees and all of the sessions are recorded so you can watch them on-demand for $189 bucks (early-bird special). For the entire speaker list then click here. The session list has also been published. If you are interested in this then you can register here.   In-Person Event Knoxville, TN on June 3rd/4th 2011. Codestock.org – If you live in the South then you have heard of CodeStock. To my knowledge, they have only had 3 events so far and they were a huge success. It was such a success that after the last event, everyone was telling me how good it was and how much they enjoyed it. They currently have a call for speakers going on right now, so if you have sessions then be sure to submit yours. So, what makes them stand out? Well for starters Michael Neal (organizer) developed an open API so conference attendees could build their own apps for the sessions. They also encouraged their speakers to go to other sessions instead of stay in a “speaker-room”. Another cool feature is that they are uploading videos from the conference so everyone can benefit. They are currently looking for sponsorship, so help out if you can.   In-Person Event Redmond, WA on October 28/29 2011 *NOT 100% SURE AT THIS POINT* PDC 11 – OK, so the logo should be pdc11 but its not out yet. This event is located on Microsoft’s campus in Redmond, WA. It is probably one of the most well known conferences for developers to attend. One of the big perks from this event is that you typically come away with free stuff. In 2010 they gave away Windows 7 Phones. I remember years earlier they gave away laptops. This of course isn’t the only reason to go, you may get to tour the Microsoft campus. Since pdc is a huge event, you can view all the events for free. Mike Taulty created a nice Silverlight application that consumes the OData feed. You can download it here. If everything goes as planned, I will be at all of these events. If you plan on going then send me a tweet and we will do lunch or dinner. I love meeting new developers and talking .net.  Subscribe to my feed

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  • How to grant secure access to an untrusted developer to an exisiting virtual host?

    - by Margaret Thorpe
    Our security policy does not permit ftpd on our servers. Our trusted developers use ftps to access our webservers and they have full access to the server. How do we grant limited access to a single untrusted developer for an existing virtual host. Ive configured rssh to only allow sftp to our untrusted developer, but we dont want him browsing around our other sites. I've investigated chroot, but it seems overly complex and more for restricting access to their home folders. I want to limit access to /srv/www/vhostx/ and below. Whats the best solution?

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  • Where to download MS SQL Server 2005 Developer Edition?

    - by Mark
    Just got put in charge of a big web project. All I know is the web server is running MS SQL 2005, so I need something comparable to test locally. I figure developer edition is my best bet because it offers everything that the enterprise edition does, but is for development purposes only. But this page is pretty worthless http://www.microsoft.com/sqlserver/2005/en/us/developer.aspx Where do I actually download it? What about SQL 2005 Express? Would that meet my needs? I can't figure out all the differences between these stupid MS products.

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  • Most optimal way to detect if black (or any color pixels) exist in an image file?

    - by Zando
    What's the best and most flexible algorithm to detect any black (or colored pixel) in a given image file? Say I'm given an image file that could, say, have a blue background. And any non blue pixel, including a white pixel, is counted as a "mark". The function returns true if there are X number of pixels that deviate from each other at a certain threshold. I thought it'd be fastest to just simply iterate through every pixel and see if its color matches the last. But if it's the case that pixel (0,0) is deviant, and every other pixel is the same color (and I want to allow at least a couple deviated pixels before considering an image to be "marked), this won't work or be terribly efficient.

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  • C# development with Mono and MonoDevelop

    - by developerit
    In the past two years, I have been developing .NET from my MacBook by running Windows XP into VM Ware and more recently into Virtual Box from OS X. This way, I could install Visual Studio and be able to work seamlessly. But, this way of working has a major down side: it kills the battery of my laptop… I can easiely last for 3 hours if I stay in OS X, but can only last 45 min when XP is running. Recently, I gave MonoDevelop a try for developing Developer IT‘s tools and web site. While being way less complete then Visual Studio, it provides essentials tools when it comes to developping software. It works well with solutions and projects files created from Visual Studio, it has Intellisence (word completion), it can compile your code and can even target your .NET app to linux or unix. This tools can save me a lot of time and batteries! Although I could not only work with MonoDevelop, I find it way better than a simple text editor like Smultron. Thanks to Novell, we can now bring Microsoft technology to OS X.

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  • Is there any algorithm for finding LINES by PIXEL COLORS on picture?

    - by Ole Jak
    So I have Image like this I want to get something like this (I hevent drawn all lines I want but I hope you can get my idea) I need algorithm for finding all straight lines on it by just reading colors of pixels. No hard math, no Haar, no Hough. Some algorithm which would be based on points colors. I want to give to algorithm parameters like min line length and max line distortion. I want to get relative to picture pixel coords start and end points of lines. So I need algorithm for finding straight lines of different colors on picture. Algorithm which would be based on idea of image of different colors and Lines of static colors. Yes - such algorithm will not work for images with lots of shadows and lights. But It willl probably be fast (I hope so). Is there any such algorithm?

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  • How do you draw a line on a canvas in WPF that is 1 pixel thick.

    - by xarzu
    The method for drawing a line on a canvas in WPF that uses the line class actually draws a line that is two pixels thick: Line myLine = new Line(); myLine.Stroke = System.Windows.Media.Brushes.Black; myLine.X1 = 100; myLine.X2 = 140; // 150 too far myLine.Y1 = 200; myLine.Y2 = 200; myLine.StrokeThickness = 1; graphSurface.Children.Add(myLine); Microsoft might have decided to set a standard for line thickness and the minimum is 2 pixels thick when you set the strockThickness to 1, but when you already have rectangles drawn in XAML and even error fonts using WingDings, it is an obvious miss-match. How do you draw a line that is truly 1 pixel thick?

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  • Getting pixel averages of a vector sitting atop a bitmap...

    - by user346511
    I'm currently involved in a hardware project where I am mapping triangular shaped LED to traditional bitmap images. I'd like to overlay a triangle vector onto an image and get the average pixel data within the bounds of that vector. However, I'm unfamiliar with the math needed to calculate this. Does anyone have an algorithm or a link that could send me in the right direction? (I tagged this as Python, which is preferred, but I'd be happy with the general algorithm!) I've created a basic image of what I'm trying to capture here: http://imgur.com/Isjip.gif

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  • How would you build a "pixel perfect" GUI on Linux?

    - by splicer
    I'd like build a GUI where every single pixel is under my control (i.e. not using the standard widgets that something like GTK+ provides). Renoise is a good example of what I'm looking to produce. Is getting down to the Xlib or XCB level the best way to go, or is it possible to achieve this with higher level frameworks like GTK+ (maybe even PyGTK)? Should I be looking at Cairo for the drawing? I'd like to work in Python or Ruby if possible, but C is fine too. Thanks!

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  • UIImageView is clipping a pixel of the bottom of my UIImage...?

    - by akaii
    I'm not sure what might be causing this, but UIImageView occasionally clips off about a pixel or 2 from the bottom of some square/rectangular UIImages I'm using as subviews for UITableViewCells. These UIImageViews are well within the borders of the cell, so it shouldn't be due to cliptobounds. There seems to be no consistency or pattern to which images are being clipped, nor when they're clipped, other than that it only happens to (or is only noticable in) square/rectangular icons, and only ones that are parented to UITableViewCells (or their subclasses). I'm having trouble reproducing the problem consistently, which is why I haven't posted any code this time. Has anyone encountered something similar to this before? I've encountered a similar bug that involved floating point values for origin/size being interpreted weirdly... but that doesn't seem to be the cause of this particular problem. I don't need a specific solution at this point, I'm just making sure I haven't missed any well-known bugs or documented problems that involve UIImageView.

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  • Need to get pixel averages of a vector sitting on a bitmap...

    - by user346511
    I'm currently involved in a hardware project where I am mapping triangular shaped LED to traditional bitmap images. I'd like to overlay a triangle vector onto an image and get the average pixel data within the bounds of that vector. However, I'm unfamiliar with the math needed to calculate this. Does anyone have an algorithm or a link that could send me in the right direction? I'm not even clear what this type of math is called. I've created a basic image of what I'm trying to capture here: http://imgur.com/Isjip.gif

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  • SD card won't appear after upgrade to 13.10

    - by Pixel
    My SD card won't mount when I put it into my lap top, everything was fine before the upgrade. The information about the SD card appears just fine when I type "sudo fdisk l " it just says that it doesn't have a valid partition table. When I type "_sudo blkid" I get the following answer: /dev/sda1: UUID="CCA8-9030" TYPE="vfat" /dev/sda2: UUID="8a1d135b-384b-432d-b608-64dcf09ada24" TYPE="ext2" /dev/sda3: UUID="7s6PtU-kj2Z-N8XD-0mzl-840i-i3HG-enlbAf" TYPE="LVM2_member" /dev/sr0: LABEL="Bamboo CD" TYPE="iso9660" /dev/mapper/ubuntu--vg-root: UUID="c9b521c8-7c9f-493b-95c8-a7d79c465318" TYPE="ext4" /dev/mapper/ubuntu--vg-swap_1: UUID="7f155ab6-e1b9-485b-a2bc-443c0622284d" TYPE="swap" When I use lsusb: Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 003: ID 13d3:5710 IMC Networks UVC VGA Webcam Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 002: ID 046d:c52f Logitech, Inc. Unifying Receiver Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub I've read the other threads and I couldn't really find any good answers, my card reader was compatible with the previous version of ubuntu, so technically it should still be compatible with the next version. Also I can't erase what's on the card, it contains important data which I need... :/ If you need anymore information just ask, I'll give it as soon as I can. Pixel.

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  • Critical tools that every Java Developer should have in his toolbelt?

    - by Timur Fanshteyn
    I was trying to compile a list of tools that a good Java Developer should be know of, and keep in his Developer Tool Belt I can think of a few Eclipse Development Environment - There are other IDEs, but you should know how Eclipse of eclipse. JUnit - Java Unit Testing Framework. Of course there are others, but... ANT Maven Soap UI - for testing SOAP endpoints jrat - Java Profiler. I don't know of other good Java profilers Java Decompiler - For when you just have to know what's in the jar file

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  • What do you use to keep notes as a developer?

    - by Mike Duncan
    Where as a developer do like to you keep your code snippets, links, checklists, final solutions to problems etc? I've fooled with Google Notebook, MS Onenote, TreePad, textfiles, and Evernote a bit (currently leaning toward Evernote). All have pros and cons but none seem to be really suited to developers. Is anyone super-happy with a collection / note system that's not just generic GTD, but with developer-centric utility?

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  • How can I get Silverlight 4 Tools to work in Web Developer 2010 Express?

    - by Edward Tanguay
    I installed Windows 7. I then installed Web Developer 2010 Express from here with the Web Platform Installer. I then installed the the April 15 release of Silverlight Toolkit from here. I then added this reference: Then in my XAML, I reference it like this but it gives me no intellisense and tells me that I am missing an assembly reference: What do I have to do to use the Silverlight 4 Toolkit in Web Developer 2010 Express?

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  • How can a Rails newbie find a job as a Rails developer?

    - by esavard
    I'm a Ruby on Rails newbie. I'm learning Rails in my spare time (my day job is C++ developer) and I like it. I would like to be paid to do Rails development full-time instead of C++. How can I find a job in Rails when most job offering requires 2-5 years of Rails experience? What is the most effective strategy to get some credibility as a Rails Developer? Thanks in advance for your answers.

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  • how good should a developer be in design and animation?

    - by scatman
    how good should a developer (especially web developer) be in design and animation? should he know how to create flash animations? how to use image processing programs like photoshop.... i am asking this question because i am a computer science student, and all my courses are programming related (no courses about design). when i develop a web application i usually use "wizards" for animation coz i suck at design...

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  • NDepend tool – Why every developer working with Visual Studio.NET must try it!

    - by hajan
    In the past two months, I have had a chance to test the capabilities and features of the amazing NDepend tool designed to help you make your .NET code better, more beautiful and achieve high code quality. In other words, this tool will definitely help you harmonize your code. I mean, you’ve probably heard about Chaos Theory. Experienced developers and architects are already advocates of the programming chaos that happens when working with complex project architecture, the matrix of relationships between objects which simply even if you are the one who have written all that code, you know how hard is to visualize everything what does the code do. When the application get more and more complex, you will start missing a lot of details in your code… NDepend will help you visualize all the details on a clever way that will help you make smart moves to make your code better. The NDepend tool supports many features, such as: Code Query Language – which will help you write custom rules and query your own code! Imagine, you want to find all your methods which have more than 100 lines of code :)! That’s something simple! However, I will dig much deeper in one of my next blogs which I’m going to dedicate to the NDepend’s CQL (Code Query Language) Architecture Visualization – You are an architect and want to visualize your application’s architecture? I’m thinking how many architects will be really surprised from their architectures since NDepend shows your whole architecture showing each piece of it. NDepend will show you how your code is structured. It shows the architecture in graphs, but if you have very complex architecture, you can see it in Dependency Matrix which is more suited to display large architecture Code Metrics – Using NDepend’s panel, you can see the code base according to Code Metrics. You can do some additional filtering, like selecting the top code elements ordered by their current code metric value. You can use the CQL language for this purpose too. Smart Search – NDepend has great searching ability, which is again based on the CQL (Code Query Language). However, you have some options to search using dropdown lists and text boxes and it will generate the appropriate CQL code on fly. Moreover, you can modify the CQL code if you want it to fit some more advanced searching tasks. Compare Builds and Code Difference – NDepend will also help you compare previous versions of your code with the current one at one of the most clever ways I’ve seen till now. Create Custom Rules – using CQL you can create custom rules and let NDepend warn you on each build if you break a rule Reporting – NDepend can automatically generate reports with detailed stats, graph representation, dependency matrixes and some additional advanced reporting features that will simply explain you everything related to your application’s code, architecture and what you’ve done. And that’s not all. As I’ve seen, there are many other features that NDepend supports. I will dig more in the upcoming days and will blog more about it. The team who built the NDepend have also created good documentation, which you can find on the NDepend website. On their website, you can also find some good videos that will help you get started quite fast. It’s easy to install and what is very important it is fully integrated with Visual Studio. To get you started, you can watch the following Getting Started Online Demo and Tutorial with explanations and screenshots. If you are interested to know more about how to use the features of this tool, either visit their website or wait for my next blogs where I will show some real examples of using the tool and how it helps make your code better. And the last thing for this blog, I would like to copy one sentence from the NDepend’s home page which says: ‘Hence the software design becomes concrete, code reviews are effective, large refactoring are easy and evolution is mastered.’ Website: www.ndepend.com Getting Started: http://www.ndepend.com/GettingStarted.aspx Features: http://www.ndepend.com/Features.aspx Download: http://www.ndepend.com/NDependDownload.aspx Hope you like it! Please do let me know your feedback by providing comments to my blog post. Kind Regards, Hajan

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  • Rendering shadow sprites in cocos2d-x

    - by lukeluke
    I am writing a 2D game with cocos2d-x. I want to put a "shadow" sprite on a background sprite using the equation: MAX(0, Cd*1 - Cs*S) where Cd is the destination color (that is, a background pixel), Cs is the source color (the shadow pixel) , S is the scale factor (between 0 and 1). The MAX() function is used to avoid negative results. This is a lighting effect: when the shadow sprite pixel is 0, there is no effect on the background pixel, otherwise, the background pixel becomes darker. Now, the only way that comes to my mind is to change the blending equation to GL_FUNC_SUBTRACT, but it doesn't compile with cocos2d-x (can't found it)... I would subclass the CCSprite class in order to implement the draw() method in order to change, when needed, the blending equation, call the original draw() method and restore the blending equation to its previous state at the end of the method. So my questions are two: how to use glBlendEquation() with cocos2d-x? Keep in mind that i am writing a game for iphone/android/windows. are shadows handled this way in 2D games? Thx

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