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• Community Events in Köln (October) and Copenhagen November #ssas #tabular #powerpivot

  - by Marco Russo (SQLBI)

  Short update about community events in Europe where I will speak.On October 11 I will present DAX in Action in Köln - all details in the PASS local chapter here: http://www.sqlpass.de/Regionen/Deutschland/K%C3%B6lnBonnD%C3%BCsseldorf.aspxI will be speaking at a community event in Copenhagen on November 21, 2012. The session will be Excel 2013 PowerPivot in Action and details about time and location are available here: http://msbip.dk/events/30/msbip-mode-nr-9/I will be in Köln and Copenhagen to teach the SSAS Tabular Workshop. The workshop in Köln is the first in Germany and I look forward to meet new BI developers there.Copenhagen is the second edition after another we delivered this spring. It is a convenient location also for people coming from Malmoe and Göteborg in Sweden. Last event in Copenhagen were conflicting with a large event in Sweden, maybe this time I'll meet more people coming from the other side of the Øresund Bridge!Many other dates and location are available on the SSAS Tabular Workshop website.

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• Own a book

  - by Rajesh Pillai

  Its a pleasure to introduce my first initiative, http://ownabook.org/,  which is live now and is in beta.  Go get in the queue to grab your hardcopy of your favorite book or audio as applicable and when published.There is no catch.  This site is being built using ASP.NET MVC 3, jQuery and other good stuff.  I will open the source once the beta period is over, and filled with more functionality.Every month a winner will be selected and couriered the book.   The intent behind this service is to help motivate to keep the reading habits alive.  Though it is never guaranteed the winner will read the book, but, nevertheless, being on the positive note is always a good thing.Hope you will like the service.

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• Unity-2D ALT F1,F2 custom configuration

  - by LGB

  I have been using Ubuntu since the first public version (I used Debian before). I always have had the policy to change between 8 workspaces with ALT F1...F8. I know this is not a "standard" or so, but I prefer this. It worked well with Unity (Unity-2D, I mean) too, after some configuration. But currently the odd thing happened that after a system restart this is not the case anymore, I am totally lost what could happened. Now ALT F3...F8 works, but not ALT-F1...F2, which just focuses launcher/dash, which is not the thing I want. I know this is the standard meaning of these key combinations (AFAIK) but defining my own key combinations worked before and now it stopped working ... If someone have any idea how to restore my custom configured meaning for ALT F1...F2 too, please share with me. Thanks!

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• Google Chrome side by side stable beta unstable. How to approach?

  - by sobi3ch

  I have the stable version of Google Chrome on my box. And each time I'm trying to install beta or/and unstable versions then I run into the same problem: The following packages will be REMOVED google-chrome-stable The following NEW packages will be installed google-chrome-beta 0 upgraded, 1 newly installed, 1 to remove and 0 not upgraded. Need to get 34.5 MB of archives. After this operation, 3,109 kB of additional disk space will be used. Do you want to continue [Y/n]? I need to remove the first version before installing another. How can I install stable and beta (and maybe unstable as well) next to each other?

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• What is a dotted pair's analogy in other Lisp implementations?

  - by octopusgrabbus

  What is Scheme's dotted pair construct analogous to in other Lisp implementations? I can make a vector or list quite easily, and understand those in Clojure, even though the syntax is a little different, like Clojure's vectors use square brackets []. However, seeing a dotted pair for the first time threw me. It almost looks like it is an implementation of of map. I'm not looking for a discussion, but more for use or the dotted pair equivalent in other Lisp dialects, like Clojure, or even Python. Thanks.

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• Building dynamic bounding box hierachies.

  - by adivasile

  I've been reading about collision detection and I saw that the first part was a coarse detection which generates possible contacts using bounding box hierarchies. I understand the concept of splitting up your objects in groups, to speed up the detection phase, but I'm a little confused on how do you actually build the hierachy, more so on what criteria is used to group them together. Do I iterate through all the objects in the scene, and check the distance between them to see where they should be inserted in the tree? Do you know some resources that may shed some light on this topic for me?

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• Howto save AlsaMixer settings ?

  - by Pablo

  Hello I have tryed out the programm "EarCandy", now I had/have a lot of problems. At first I did not get any sound and now it is very low volume. PS Earcandy is now deleted from my harddisk. When Im opening the Alsamixer with: alsamixer I see that the volume for the speakers is zero. Now I push it to the max volume. But after every restart, I have to open alsamixer again and have to set the volume to max again. Can I save the settings for alsamixer or is there any other way to fix the problem ?

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• Dealing with technical debt

  - by Desolate Planet

  This is a question that I often ask myself when working with developers. I've worked at four companies so far, and I've noticed a lack of attention to keeping code clean and dealing with technical debt that hinders future progress in a software app. For example, the first company I worked for had written a database from scratch rather than take something like MySQL and that created hell for the team when refacoring or extending the app. I've always tried to be honest and clear with my manager when he discusses projections, but management doesn't seem interested in fixing what's already there and it's horrible to see the impact it has on team morale and in their attitude towards others. What are your thoughts on the best way to tackle this problem? What I've seen is people packing up and leaving and the company becomes a revolving door with developers coming and and out and making the code worse. How do you communicate this to management to get them interested in sorting out technical debt?

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• I cant acess my HDD

  - by user286283

  First of all, I'm a total Linux noob. I was running the latest version of Ubuntu but eventually I wasn't able to boot no more, the Ubuntu logo appeared and then it was only a blinking white bar indefinitely, without charging. Now, my problem is the following. I want to do a fresh install and I am trying to recover my latest files from the HDD using the Ubuntu live CD. I click on the HDD and obtain the following I honestly don't really know whats going on. Looking at disks I have this... Can anyone help me out? Cheers.

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• Why does Unity in 2d mode employ scaling and the default othographic size the way it does?

  - by Neophyte

  I previously used SFML, XNA, Monogame, etc to create 2d games, where if I display a 100px sprite on the screen, it will take up 100px. If I use 128px tiles to create a background, the first tile will be at (0,0) while the second will be at (129,0). Unity on the other hand, has its own odd unit system, scaling on all transforms, pixel-to-units, othographic size, etc etc. So my question is two-fold, namely: Why does Unity have this system by default for 2d? Is it for mobile dev? Is there a big benefit I'm not seeing? How can I setup my environment, so that if I have a 128x128 sprite in Photoshop, it displays as a 128x128 sprite in Unity when I run my game? Note that I am targeting desktop exclusively.

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• Is it possible that Unity would some day switch back to Mutter?

  - by David

  I remembered that the first Unity was indeed built on Mutter, but later ported to Compiz due to poor performance. I also know Canonical practically incorporated Compiz to work closely for future Unity, so this is getting less likely. But Compiz just seems pretty outdated now that GNOME3/GTK3/Mutter is becoming more mainstreamed, and it is known to deliver some performance issue, but on the other hand Mutter seems pretty good and is still steadily developing now, I'm just wondering if anyone related to the project is still testing and evaluating the possibility of Unity on Mutter? Not that you have to tell me now if you're going to do it or not. I just wanna know if anyone is considering it. Thanks.

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• The use of LGPL for Commercial use

  - by Smarty Twiti

  I am trying to make my first app for sale, I would like to ask some questions for those who have already sold their software: Have you used a Framework/Lib whose LGPL License? if yes, what are the impressions of your customers? for example, if your customers/ competitors from the market reveal technology/secrets that you used in your solution (as LGPL requires that you make a Dynamic Link (.DLL) for your libs and you clearly tell the use of a Lib/Framework ...). Full story: For my project, I used a framework LGPL/commercial (Dual License) the second one it was too expensive (about 3000 USD) which pushed me to use LGPL.. however I still concerned.. That is why I ask for advise and especially motivations... Please do not hesitate to participate... Thanks in advance.

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• Problem with WindowsXp on VirtualBox in 12.10

  - by umpirsky

  When I try to start it I get: Failed to open a session for the virtual machine WindowsXp. The virtual machine 'WindowsXp' has terminated unexpectedly during startup with exit code 1. Result Code: NS_ERROR_FAILURE (0x80004005) Component: Machine Interface: IMachine {5eaa9319-62fc-4b0a-843c-0cb1940f8a91} and in another dialog: Kernel driver not installed (rc=-1908) The VirtualBox Linux kernel driver (vboxdrv) is either not loaded or there is a permission problem with /dev/vboxdrv. Please reinstall the kernel module by executing '/etc/init.d/vboxdrv setup' as root. If it is available in your distribution, you should install the DKMS package first. This package keeps track of Linux kernel changes and recompiles the vboxdrv kernel module if necessary. When I try to run: $ sudo /etc/init.d/vboxdrv setup [sudo] password for umpirsky: sudo: /etc/init.d/vboxdrv: command not found Any idea?

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• How to Configure Windows Defender

  The existence of spyware and other unwanted irritations on the Web is so widespread that keeping your PC protected is an absolute must. Microsoft responded to this need with the inclusion of its Windows Defender program with Windows 7. Windows Defender does exactly what its name suggests, which is to defend your PC from spyware and other malicious programs. It does this first with real-time protection that notifies you if any spyware tries to run on your computer or if a program tries to change any vital settings in Windows. Windows Defender also helps to keep your computer protected thro...

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• Game Editor - When screen is clicked, how do you identify which object that is clicked?

  - by Deukalion

  I'm trying to create a Game Editor, currently just placing different types of Shapes and such. I'm doing this in Windows Forms while drawing the 3D with XNA. So, if I have a couple of Shapes on the screen and I click the screen I want to be able to identify "which" of these objects you clicked. What is the best method for this? Since having two objects one behind the other, it should be able to recognize the one in front and not the one behind it and also if I rotate the camera and click on the one behind it - it should identify it and not the first one. Are there any smart ways to go about this?

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• How do you maintain content size vs. content quality in a mobile application?

  - by PeterK

  I am developing my first Cocos2d iPhone/iPad game that includes quite a few sprites, I would need approximately 80 different. As this is for both normal and HD displays I have 2x of each sprite. I am using TexturePacker to optimize the thing. I would like to ask if there are any rules-of-thumb, tricks, ideas etc. to adjust to in regards to size of content, quality and how you maintain high-quality HD-based graphics due to its size vs. the device memory sizes? Also, is it a good idea to only have one copy of the sprites and scale it using code?

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• Windows2Linux Porting

  Recently I faced one very interesting task. I had to port an application from one platform (Windows) to another (Linux). It is an interesting topic. First, knowledge of several platforms and writing the code for them is a good experience for every developer. Secondly, writing an application for different platforms makes it widespread and needed by many. So, I would like to share my impressions concerning this process. This article is intended for everybody who wants to write a cross-platform application.

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• Are there any alternative JS ports of Box2D?

  - by Petteri Hietavirta

  I have been thinking about creating a top down 2D car game for HTML5. For my first game I wrote the physics and collisions my self but for this one I would like to use some ready made library. I found out Box2D and its JS port. http://box2d-js.sourceforge.net It seems to be quite old port, made in 2008. Is it lacking many features of current Box2D or does it have major issues with it? And are there any alternatives for it?

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• Building a Java CMS - What Existing Product Should I Use?

  - by walnutmon

  I'm a Java developer and in need of a CMS. I've spent a lot of time reading about, and tinkering with Liferay but am concerned that it doesn't cover two of my three major concerns I need to have many sites with individual domains HTML/CSS designers need to be able to design the website templates, look and feel, and layouts in their own tools without having to worry about writing scripts Site and page building APIs must be understandable so that a custom builder interface can be created and harness the CMS as opposed to hacking it Liferay nails the first bullet point, but the second two appear to be unsolved. Does anyone have experience with a Java CMS that does all three? Or have any idea how to approach the problem if none exists? Has someone has used a Java CMS and has been able to add this functionality give some insight?

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• Free vs. Paid: Picking a Financial Model

  - by ashes999

  I finally embarked upon my first "paid" game. What this means is that I will incorporate some sort of monetization strategy in my game. This may mean making the app pay-to-download, making it "freemium" with paid content, or something else. Having never done something like this, I'm at a complete loss as to how to figure out what I should do. I know a couple of models (pay to download, freemium, etc.) and I can brainstorm some ideas. But how do I figure out what strategy to use? Perhaps there's some body of research on this? (I recall reading that MMOs popular in Korea use a model where cosmetic changes only are pay-to-buy; everything else is free).

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• Why is JavaScript not used for classical application development (compiled software)?

  - by Jose Faeti

  During my years of web development with JavaScript, I come to the conclusion that it's an incredible powerful language, and you can do amazing things with it. It offers a rich set of features, like: Dynamic typing First-class functions Nested functions Closures Functions as methods Functions as Object constructors Prototype-based Objects-based (almost everything is an object) Regex Array and Object literals It seems to me that almost everything can be achieved with this kind of language, you can also emulate OO programming, since it provides great freedom and many different coding styles. With more software-oriented custom functionalities (I/O, FileSystem, Input devices, etc.) I think it will be great to develop applications with. Though, as far as I know, it's only used in web development or in existing softwares as a scripting language only. Only recently, maybe thanks to the V8 Engine, it's been used more for other kind of tasks (see node.js for example). Why until now it's only be relegated only to web development? What is keeping it away from software development?

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• Play videos with libwebkit in Ubuntu 11.10 server

  - by Luis Fagundes

  I'm using libwebkit (with python-webkit) to render a page that plays a video. This application works fine in a Ubuntu 11.04 Desktop, Nvidia card and lots of libraries and software installed, but in a fresh Ubuntu 11.10 Server with intel 82945G/GZ card the video does not play. I guess either some codec package is missing or it's a driver problem. What could be missing for this to play? I'm trying with this video: http://video.eustasy.co.uk/480/ EDIT: doesn't look like a driver problem. With chromium I can play the video, but with libwebkit + python-webkit the video just shows the first frame and doesn't play. Any hints on what package could be missing? SOLVED: apparently it had to do with lack of audio. While chrome would play the video with no sound, libwebkit wouldn't start video. Adding user to audio and video groups solved the problem.

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• RPG Item processing

  - by f00b4r

  I started working on an item system for my (first) game, and I'm having a problem conceptualizing how it should work. Since Items can produce a bunch of potentially non-standard actions (revive a character vs increasing some stat) or have use restrictions (can only revive if a character is dead). For obvious reasons, I don't want to create a new Item class for every item type. What is the best way to handle this? Should I make a handful of item types (field modifiers, status modifiers, )? Is it normal to script item usage? Could (should?) this be combined with the above mentioned solution (have a couple of different sub item types, make special case items usage scripted)? Thanks.

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• Training Courses/Material for Fresh Software Engineers

  - by H_Miri

  I am familiar with the C++ programming language, and I have been using it for some time now. Recently, I have been applying for C++ Software Development/Engineering jobs, but I feel like there is still so much I need to learn. When first-class companies, such as Google, hire a software programmer, they obviously put them through some initial training. How/Where can I find a similar source of training material/source that would prepare me for commercial/industrial programming in C++? I know there is millions of good tutorials on line, but I would rather work through something different. I actually don't know how an organization training courses in software development would be different to text books. Has anyone been in the same boat - feeling under-confident at the employment stage and then realizing they shouldn't have been?

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• Attending MySQL Connect? Your Opinion Matters.

  - by Monica Kumar

  Take the MySQL Connect 2012 Survey Thanks to everyone who is at the first ever MySQL Connect Conference in San Francisco this weekend! Don't forget to take your Conference and Session Surveys. Your opinions help shape next year's conference. Take a survey for each of the sessions you attend and be entered into a drawing for one prize for $200 American Express Gift Certificate. Fill in the daily conference survey and be entered into a drawing for one prize for a $500 American Express Gift Card Surveys are located here. Make your opinion count! Take the survey now. Congratulations to Robin Schumacher from DataStax as he is the winner of the Saturday survey!

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