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  • DRBD and MySQL - Virtualbox Setup

    DRBD is a Linux project that provides a real-time distributed filesystem. Sean Hull demonstrates how to use Sun's virtualbox software to create a pair of VMs, then configure those VMs with DRBD, and finally install and test MySQL running on volumes sitting on DRBD.

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  • How to choose an agile methodology?

    - by Christophe Debove
    I'm working in a little firm about 10 developpers, we are working a kind of agile way but knowledgeless and without formalism. I think be aware of what are agile method, what can they afford to us, may render more productive our products. However there is a lot of agile method, which could be the simplest to "learn"? Rapid Application Development Dynamic systems development method Scrum Feature Driven Development Extreme programming Adaptive software development Test Driven Development Crystal clear

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  • Project Management Helps AmeriCares Deliver International Aid

    - by Sylvie MacKenzie, PMP
    Excerpt from PROFIT - ORACLE - by Alison Weiss Handle with Care Sound project management helps AmeriCares bring international aid to those in need. The stakes are always high for AmeriCares. On a mission to restore health and save lives during times of disaster, the nonprofit international relief and humanitarian aid organization delivers donated medicines, medical supplies, and humanitarian aid to people in the U.S. and around the globe. Founded in 1982 with the express mission of responding as quickly and efficiently as possible to help people in need, the Stamford, Connecticut-based AmeriCares has delivered more than US$10.5 billion in aid to 147 countries over the past three decades. Launch the Slideshow “It’s critically important to us that we steward all the donations and that the medical supplies and medicines get to people as quickly as possible with no loss,” says Kate Sears, senior vice president for finance and technology at AmeriCares. “Whether we’re shipping IV solutions to victims of cholera in Haiti or antibiotics to Somali famine victims, we need to get the medicines there sooner because it means more people will be helped and lives improved or even saved.” Ten years ago, the tracking systems used by AmeriCares associates were paper-based. In recent years, staff started using spreadsheets, but the tracking processes were not standardized between teams. “Every team was tracking completely different information,” says Megan McDermott, senior associate, Sub-Saharan Africa partnerships, at AmeriCares. “It was just a few key things. For example, we tracked the date a shipment was supposed to arrive and the date we got reports from our partner that a hospital received aid on their end.” While the data was accurate, much detail was being lost in the process. AmeriCares management knew it could do a better job of tracking this enterprise data and in 2011 took a significant step by implementing Oracle’s Primavera P6 Professional Project Management. “It’s a comprehensive solution that has helped us improve the monitoring and controlling processes. It has allowed us to do our distribution better,” says Sears. In addition, the implementation effort has been a change agent, helping AmeriCares leadership rethink project management across the entire organization. Initially, much of the focus was on standardizing processes, but staff members also learned the importance of thinking proactively to prevent possible problems and evaluating results to determine if goals and objectives are truly being met. Such data about process efficiency and overall results is critical not only to AmeriCares staff but also to the donors supporting the organization’s life-saving missions. Efficiency Saves Lives One of AmeriCares’ core operations is to gather product donations from the private sector, establish where the most-urgent needs are, and solicit monetary support to send the aid via ocean cargo or airlift to welfare- and health-oriented nongovernmental organizations, hospitals, health networks, and government ministries based in areas in need. In 2011 alone, AmeriCares sent more than 3,500 shipments to 95 countries in response to both ongoing humanitarian needs and more than two dozen emergencies, including deadly tornadoes and storms in the U.S. and the devastating tsunami in Japan. When it comes to nonprofits in general, donors want to know that the charitable organizations they support are using funds wisely. Typically, nonprofits are evaluated by donors in terms of efficiency, an area where AmeriCares has an excellent reputation: 98 percent of expenses go directly to supporting programs and less than 2 percent represent administrative and fundraising costs. Donors, however, should look at more than simple efficiency, says Peter York, senior partner and chief research and learning officer at TCC Group, a nonprofit consultancy headquartered in New York, New York. They should also look at whether organizations have the systems in place to sustain their missions and continue to thrive. An expert on nonprofit organizational management, York has spent years studying sustainable charitable organizations. He defines them as nonprofits that are able to achieve the ongoing financial support to stay relevant and continue doing core mission work. In his analysis of well over 2,500 larger nonprofits, York has found that many are not sustaining, and are actually scaling back in size. “One of the biggest challenges of nonprofit sustainability is the general public’s perception that every dollar donated has to go only to the delivery of service,” says York. “What our data shows is that there are some fundamental capacities that have to be there in order for organizations to sustain and grow.” York’s research highlights the importance of data-driven leadership at successful nonprofits. “You’ve got to have the tools, the systems, and the technologies to get objective information on what you do, the people you serve, and the results you’re achieving,” says York. “If leaders don’t have the knowledge and the data, they can’t make the strategic decisions about programs to take organizations to the next level.” Historically, AmeriCares associates have used time-tested and cost-effective strategies to ship and then track supplies from donation to delivery to their destinations in designated time frames. When disaster strikes, AmeriCares ships by air and generally pulls out all the stops to deliver the most urgently needed aid within the first few days and weeks. Then, as situations stabilize, AmeriCares turns to delivering sea containers for the postemergency and ongoing aid so often needed over the long term. According to McDermott, getting a shipment out the door is fairly complicated, requiring as many as five different AmeriCares teams collaborating together. The entire process can take months—from when products are received in the warehouse and deciding which recipients to allocate supplies to, to getting customs and governmental approvals in place, actually shipping products, and finally ensuring that the products are received in-country. Delivering that aid is no small affair. “Our volume exceeds half a billion dollars a year worth of donated medicines and medical supplies, so it’s a sizable logistical operation to bring these products in and get them out to the right place quickly to have the most impact,” says Sears. “We really pride ourselves on our controls and efficiencies.” Adding to that complexity is the fact that the longer it takes to deliver aid, the more dire the human need can be. Any time AmeriCares associates can shave off the complicated aid delivery process can translate into lives saved. “It’s really being able to track information consistently that will help us to see where are the bottlenecks and where can we work on improving our processes,” says McDermott. Setting a Standard Productivity and information management improvements were key objectives for AmeriCares when staff began the process of implementing Oracle’s Primavera solution. But before configuring the software, the staff needed to take the time to analyze the systems already in place. According to Greg Loop, manager of database systems at AmeriCares, the organization received guidance from several consultants, including Rich D’Addario, consulting project manager in the Primavera Global Business Unit at Oracle, who was instrumental in shepherding the critical requirements-gathering phase. D’Addario encouraged staff to begin documenting shipping processes by considering the order in which activities occur and which ones are dependent on others to get accomplished. This exercise helped everyone realize that to be more efficient, they needed to keep track of shipments in a more standard way. “The staff didn’t recognize formal project management methodology,” says D’Addario. “But they did understand what the most important things are and that if they go wrong, an entire project can go off course.” Before, if a boatload of supplies was being sent to Haiti and there was a problem somewhere, a lot of time was taken up finding out where the problem was—because staff was not tracking things in a standard way. As a result, even more time was needed to find possible solutions to the problem and alert recipients that the aid might be delayed. “For everyone to put on the project manager hat and standardize the way every single thing is done means that now the whole organization is on the same page as to what needs to occur from the time a hurricane hits Haiti and when a boat pulls in to unload supplies,” says D’Addario. With so much care taken to put a process foundation firmly in place, configuring the Primavera solution was actually quite simple. Specific templates were set up for different types of shipments, and dashboards were implemented to provide executives with clear overviews of every project in the system. AmeriCares’ Loop reports that system planning, refining, and testing, followed by writing up documentation and training, took approximately four months. The system went live in spring 2011 at AmeriCares’ Connecticut headquarters. While the nonprofit has an international presence, with warehouses in Europe and offices in Haiti, India, Japan, and Sri Lanka, most donated medicines come from U.S. entities and are shipped from the U.S. out to the rest of the world. In addition, all shipments are tracked from the U.S. office. AmeriCares doesn’t expect the Primavera system to take months off the shipping time, especially for sea containers. However, any time saved is still important because it will allow aid to be delivered to people more quickly at a lower overall cost. “If we can trim a day or two here or there, that can translate into lives that we’re saving, especially in emergency situations,” says Sears. A Cultural Change Beyond the measurable benefits that come with IT-driven process improvement, AmeriCares management is seeing a change in culture as a result of the Primavera project. One change has been treating every shipment of aid as a project, and everyone involved with facilitating shipments as a project manager. “This is a revolutionary concept for us,” says McDermott. “Before, we were used to thinking we were doing logistics—getting a container from point A to point B without looking at it as one project and really understanding what it meant to manage it.” AmeriCares staff is also happy to report that collaboration within the organization is much more efficient. When someone creates a shipment in the Primavera system, the same shared template is used, which means anyone can log in to the system to see the status of a shipment. Knowledgeable staff can access a shipment project to help troubleshoot a problem. Management can easily check the status of projects across the organization. “Dashboards are really useful,” says McDermott. “Instead of going into the details of each project, you can just see the high-level real-time information at a glance.” The new system is helping team members focus on proactively managing shipments rather than simply reacting when problems occur. For example, when a container is shipped, documents must be included for customs clearance. Now, the shipping template has built-in reminders to prompt team members to ask for copies of these documents from freight forwarders and to follow up with partners to discover if a shipment is on time. In the past, staff may not have worked on securing these documents until they’d been notified a shipment had arrived in-country. Another benefit of capturing and adopting best practices within the Primavera system is that staff training is easier. “Capturing the processes in documented steps and milestones allows us to teach new staff members how to do their jobs faster,” says Sears. “It provides them with the knowledge of their predecessors so they don’t have to keep reinventing the wheel.” With the Primavera system already generating positive results, management is eager to take advantage of advanced capabilities. Loop is working on integrating the company’s proprietary inventory management system with the Primavera system so that when logistics or warehousing operators input data, the information will automatically go into the Primavera system. In the past, this information had to be manually keyed into spreadsheets, often leading to errors. Mining Historical Data Another feature on the horizon for AmeriCares is utilizing Primavera P6 Professional Project Management reporting capabilities. As the system begins to include more historical data, management soon will be able to draw on this information to conduct analysis that has not been possible before and create customized reports. For example, at the beginning of the shipment process, staff will be able to use historical data to more accurately estimate how long the approval process should take for a particular country. This could help ensure that food and medicine with limited shelf lives do not get stuck in customs or used beyond their expiration dates. The historical data in the Primavera system will also help AmeriCares with better planning year to year. The nonprofit’s staff has always put together a plan at the beginning of the year, but this has been very challenging simply because it is impossible to predict disasters. Now, management will be able to look at historical data and see trends and statistics as they set current objectives and prepare for future need. In addition, this historical data will provide AmeriCares management with the ability to review year-end data and compare actual project results with goals set at the beginning of the year—to see if desired outcomes were achieved and if there are areas that need improvement. It’s this type of information that is so valuable to donors. And, according to York, project management software can play a critical role in generating the data to help nonprofits sustain and grow. “It is important to invest in systems to help replicate, expand, and deliver services,” says York. “Project management software can help because it encourages nonprofits to examine program or service changes and how to manage moving forward.” Sears believes that AmeriCares donors will support the return on investment the organization will achieve with the Primavera solution. “It won’t be financial returns, but rather how many more people we can help for a given dollar or how much more quickly we can respond to a need,” says Sears. “I think donors are receptive to such arguments.” And for AmeriCares, it is all about the future and increasing results. The project management environment currently may be quite simple, but IT staff plans to expand the complexity and functionality as the organization grows in its knowledge of project management and the goals it wants to achieve. “As we use the system over time, we’ll continue to refine our best practices and accumulate more data,” says Sears. “It will advance our ability to make better data-driven decisions.”

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  • SQL SERVER – Use ROLL UP Clause instead of COMPUTE BY

    - by pinaldave
    Note: This upgrade was test performed on development server with using bits of SQL Server 2012 RC0 (which was available at in public) when this test was performed. However, SQL Server RTM (GA on April 1) is expected to behave similarly. I recently observed an upgrade from SQL Server 2005 to SQL Server 2012 with compatibility keeping at SQL Server 2012 (110). After upgrading the system and testing the various modules of the application, we quickly observed that few of the reports were not working. They were throwing error. When looked at carefully I noticed that it was using COMPUTE BY clause, which is deprecated in SQL Server 2012. COMPUTE BY clause is replaced by ROLL UP clause in SQL Server 2012. However there is no direct replacement of the code, user have to re-write quite a few things when using ROLL UP instead of COMPUTE BY. The primary reason is that how each of them returns results. In original code COMPUTE BY was resulting lots of result set but ROLL UP. Here is the example of the similar code of ROLL UP and COMPUTE BY. I personally find the ROLL UP much easier than COMPUTE BY as it returns all the results in single resultset unlike the other one. Here is the quick code which I wrote to demonstrate the said behavior. CREATE TABLE tblPopulation ( Country VARCHAR(100), [State] VARCHAR(100), City VARCHAR(100), [Population (in Millions)] INT ) GO INSERT INTO tblPopulation VALUES('India', 'Delhi','East Delhi',9 ) INSERT INTO tblPopulation VALUES('India', 'Delhi','South Delhi',8 ) INSERT INTO tblPopulation VALUES('India', 'Delhi','North Delhi',5.5) INSERT INTO tblPopulation VALUES('India', 'Delhi','West Delhi',7.5) INSERT INTO tblPopulation VALUES('India', 'Karnataka','Bangalore',9.5) INSERT INTO tblPopulation VALUES('India', 'Karnataka','Belur',2.5) INSERT INTO tblPopulation VALUES('India', 'Karnataka','Manipal',1.5) INSERT INTO tblPopulation VALUES('India', 'Maharastra','Mumbai',30) INSERT INTO tblPopulation VALUES('India', 'Maharastra','Pune',20) INSERT INTO tblPopulation VALUES('India', 'Maharastra','Nagpur',11 ) INSERT INTO tblPopulation VALUES('India', 'Maharastra','Nashik',6.5) GO SELECT Country,[State],City, SUM ([Population (in Millions)]) AS [Population (in Millions)] FROM tblPopulation GROUP BY Country,[State],City WITH ROLLUP GO SELECT Country,[State],City, [Population (in Millions)] FROM tblPopulation ORDER BY Country,[State],City COMPUTE SUM([Population (in Millions)]) BY Country,[State]--,City GO After writing this blog post I continuously feel that there should be some better way to do the same task. Is there any easier way to replace COMPUTE BY? Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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  • Game Center: Leaderboard score inconsistencies

    - by Hasyimi Bahrudin
    Background I'm currently developing a simple library that mirrors Game Center's functionalities locally. Basically, this library is a system that manages achievements and leaderboards, and optionally sync it with the Game Center. So, if the game is not GC enabled, the game will still have achievements and leaderboards (stored inside a plist). But of course, the leaderboards will then only contain the local player's scores (which is kind of useless, I know :P). Problem Currently I have coded both of the achievements and leaderboards subsystems. The achievements subsystem have already been tested and it works. I'm currently testing the leaderboards subsystem using multiple test user accounts. I loaded the test app on a device and on the simulator, both logged in with 2 different user accounts. Then I performed these steps: I first used the device to upload a score. Then, I ran the simulator, and the score submitted by the user on the device is shown. Which is cool. Then, I used the simulator to upload a score. But on the device, still, only one score is listed. I checked on the Game Center app (to see if the bug lies within my code), and I got the same thing. Under "All players", there is only one score on the device, but there are 2 scores on the simulator. I wanted to make sure that the simulator is not causing this, so I swapped the users on the device and the simulator, and the result is still the same. In other words, the first user is oblivious of the second user's score, but the second user can see the first user's score. Then I tried with a third user. The result: the third user can only see the scores of the first user and himself. The second user still sees the scores of the first user and himself. The first user only sees his own score. Now here comes the weird part. I then make the first user and the second user befriend each other. The result: under "Friends", the first user can see the second user's score, but under "All Players", the first user's score is the only one listed. Screenshots The first user sees this: The second user sees this: So, is this a normal thing when using sandboxed GC accounts? Is this behavior documented somewhere by Apple?

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  • how to install a pbc library with fink installation,what is meant by fink installation

    - by user2910238
    jec@jec:~/cpabe/libpbc$ ./configure bash: ./configure: No such file or directory jec@jec:~/cpabe/libpbc$ ls announce COPYING gen include misc release arith debian gmp-5.1.3 INSTALL NEWS setup AUTHORS doc gmp-5.1.3.tar.bz2.sig licence.odt param simple.make benchmark ecc gpl-3.0.odt makedeb.sh pbc test configure.ac example guru Makefile.am README jec@jec:~/cpabe/libpbc$ ./configure.ac bash: ./configure.ac: Permission denied

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  • 3D Ball Physics Theory: collision response on ground and against walls?

    - by David
    I'm really struggling to get a strong grasp on how I should be handling collision response in a game engine I'm building around a 3D ball physics concept. Think Monkey Ball as an example of the type of gameplay. I am currently using sphere-to-sphere broad phase, then AABB to OBB testing (the final test I am using right now is one that checks if one of the 8 OBB points crosses the planes of the object it is testing against). This seems to work pretty well, and I am getting back: Plane that object is colliding against (with a point on the plane, the plane's normal, and the exact point of intersection. I've tried what feels like dozens of different high-level strategies for handling these collisions, without any real success. I think my biggest problem is understanding how to handle collisions against walls in the x-y axes (left/right, front/back), which I want to have elasticity, and the ground (z-axis) where I want an elastic reaction if the ball drops down, but then for it to eventually normalize and be kept "on the ground" (not go into the ground, but also not continue bouncing). Without kluging something together, I'm positive there is a good way to handle this, my theories just aren't getting me all the way there. For physics modeling and movement, I am trying to use a Euler based setup with each object maintaining a position (and destination position prior to collision detection), a velocity (which is added onto the position to determine the destination position), and an acceleration (which I use to store any player input being put on the ball, as well as gravity in the z coord). Starting from when I detect a collision, what is a good way to approach the response to get the expected behavior in all cases? Thanks in advance to anyone taking the time to assist... I am grateful for any pointers, and happy to post any additional info or code if it is useful. UPDATE Based on Steve H's and eBusiness' responses below, I have adapted my collision response to what makes a lot more sense now. It was close to right before, but I didn't have all the right pieces together at the right time! I have one problem left to solve, and that is what is causing the floor collision to hit every frame. Here's the collision response code I have now for the ball, then I'll describe the last bit I'm still struggling to understand. // if we are moving in the direction of the plane (against the normal)... if (m_velocity.dot(intersection.plane.normal) <= 0.0f) { float dampeningForce = 1.8f; // eventually create this value based on mass and acceleration // Calculate the projection velocity PVRTVec3 actingVelocity = m_velocity.project(intersection.plane.normal); m_velocity -= actingVelocity * dampeningForce; } // Clamp z-velocity to zero if we are within a certain threshold // -- NOTE: this was an experimental idea I had to solve the "jitter" bug I'll describe below float diff = 0.2f - abs(m_velocity.z); if (diff > 0.0f && diff <= 0.2f) { m_velocity.z = 0.0f; } // Take this object to its new destination position based on... // -- our pre-collision position + vector to the collision point + our new velocity after collision * time // -- remaining after the collision to finish the movement m_destPosition = m_position + intersection.diff + (m_velocity * intersection.tRemaining * GAMESTATE->dt); The above snippet is run after a collision is detected on the ball (collider) with a collidee (floor in this case). With a dampening force of 1.8f, the ball's reflected "upward" velocity will eventually be overcome by gravity, so the ball will essentially be stuck on the floor. THIS is the problem I have now... the collision code is running every frame (since the ball's z-velocity is constantly pushing it a collision with the floor below it). The ball is not technically stuck, I can move it around still, but the movement is really goofy because the velocity and position keep getting affected adversely by the above snippet. I was experimenting with an idea to clamp the z-velocity to zero if it was "close to zero", but this didn't do what I think... probably because the very next frame the ball gets a new gravity acceleration applied to its velocity regardless (which I think is good, right?). Collisions with walls are as they used to be and work very well. It's just this last bit of "stickiness" to deal with. The camera is constantly jittering up and down by extremely small fractions too when the ball is "at rest". I'll keep playing with it... I like puzzles like this, especially when I think I'm close. Any final ideas on what I could be doing wrong here? UPDATE 2 Good news - I discovered I should be subtracting the intersection.diff from the m_position (position prior to collision). The intersection.diff is my calculation of the difference in the vector of position to destPosition from the intersection point to the position. In this case, adding it was causing my ball to always go "up" just a little bit, causing the jitter. By subtracting it, and moving that clamper for the velocity.z when close to zero to being above the dot product (and changing the test from <= 0 to < 0), I now have the following: // Clamp z-velocity to zero if we are within a certain threshold float diff = 0.2f - abs(m_velocity.z); if (diff > 0.0f && diff <= 0.2f) { m_velocity.z = 0.0f; } // if we are moving in the direction of the plane (against the normal)... float dotprod = m_velocity.dot(intersection.plane.normal); if (dotprod < 0.0f) { float dampeningForce = 1.8f; // eventually create this value based on mass and acceleration? // Calculate the projection velocity PVRTVec3 actingVelocity = m_velocity.project(intersection.plane.normal); m_velocity -= actingVelocity * dampeningForce; } // Take this object to its new destination position based on... // -- our pre-collision position + vector to the collision point + our new velocity after collision * time // -- remaining after the collision to finish the movement m_destPosition = m_position - intersection.diff + (m_velocity * intersection.tRemaining * GAMESTATE->dt); UpdateWorldMatrix(m_destWorldMatrix, m_destOBB, m_destPosition, false); This is MUCH better. No jitter, and the ball now "rests" at the floor, while still bouncing off the floor and walls. The ONLY thing left is that the ball is now virtually "stuck". He can move but at a much slower rate, likely because the else of my dot product test is only letting the ball move at a rate multiplied against the tRemaining... I think this is a better solution than I had previously, but still somehow not the right idea. BTW, I'm trying to journal my progress through this problem for anyone else with a similar situation - hopefully it will serve as some help, as many similar posts have for me over the years.

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  • Can I use VirtualBox as a sandbox for 12.04?

    - by Stephen Myall
    I am quite a cautious person though not afraid to experiment. I currently have 11.10 Unity and 12.04 Beta 2 running on different partitions (no problems). I have learned here that Unity can run in VirtuaBox. When I upgrade to 12.04 LTS later this month, I am curious to understand if I could also run 12.04 in Virtual Box for experimentation and test some things before I implement them into my system? Maybe there is a better way to achieve this, without partitioning my hard drive.

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  • CodePlex Daily Summary for Tuesday, October 09, 2012

    CodePlex Daily Summary for Tuesday, October 09, 2012Popular ReleasesScript SQL Server Configuration: Release 3.0.9: Release 3.0.9 Rewrote trigger scripting. If encrypted triggers are encountered they are listed in a commented line. Scripts event notifications Added an option to script a single database (in addition to the instance) using the /scriptdb parameter. Script user-defined end points Script Service Broker objects Skip database mail on Express EditionMicrosoft Ajax Minifier: Microsoft Ajax Minifier 4.69: Fix for issue #18766: build task should not build the output if it's newer than all the input files. Fix for Issue #18764: build taks -res switch not working. update build task to concatenate input source and then minify, rather than minify and then concatenate. include resource string-replacement root name in the assumed globals list. Stop replacing new Date().getTime() with +new Date -- the latter is smaller, but turns out it executes up to 45% slower. add CSS support for single-...D3 Loot Tracker: 1.5.2: now recording server ip for each drop.WinRT XAML Toolkit: WinRT XAML Toolkit - 1.3.3: WinRT XAML Toolkit based on the Windows 8 RTM SDK. Download the latest source from the SOURCE CODE page. For compiled version use NuGet. You can add it to your project in Visual Studio by going to View/Other Windows/Package Manager Console and entering: PM> Install-Package winrtxamltoolkit Features Attachable Behaviors AwaitableUI extensions Controls Converters Debugging helpers Extension methods Imaging helpers IO helpers VisualTree helpers Samples Recent changes NOTE:...DevLib: 69721 binary dll: 69721 binary dllVidCoder: 1.4.4 Beta: Fixed inability to create new presets with "Save As".MCEBuddy 2.x: MCEBuddy 2.3.2: Changelog for 2.3.2 (32bit and 64bit) 1. Added support for generating XBMC XML NFO files for files in the conversion queue (store it along with the source video with source video name.nfo). Right click on the file in queue and select generate XML 2. UI bugifx, start and end trim box locations interchanged 3. Added support for removing commercials from non DVRMS/WTV files (MP4, AVI etc) 4. Now checking for Firewall port status before enabling (might help with some firewall problems) 5. User In...Sandcastle Help File Builder: SHFB v1.9.5.0 with Visual Studio Package: General InformationIMPORTANT: On some systems, the content of the ZIP file is blocked and the installer may fail to run. Before extracting it, right click on the ZIP file, select Properties, and click on the Unblock button if it is present in the lower right corner of the General tab in the properties dialog. This release supports the Sandcastle October 2012 Release (v2.7.1.0). It includes full support for generating, installing, and removing MS Help Viewer files. This new release suppor...Sofire Suite v1.6: XSqlModelGenerator.AddIn: 1、?? VS2010/2012 2、?? .NET FRAMEWORK 2.0 3、?? SOFIRE V1.6ClosedXML - The easy way to OpenXML: ClosedXML 0.68.0: ClosedXML now resolves formulas! Yes it finally happened. If you call cell.Value and it has a formula the library will try to evaluate the formula and give you the result. For example: var wb = new XLWorkbook(); var ws = wb.AddWorksheet("Sheet1"); ws.Cell("A1").SetValue(1).CellBelow().SetValue(1); ws.Cell("B1").SetValue(1).CellBelow().SetValue(1); ws.Cell("C1").FormulaA1 = "\"The total value is: \" & SUM(A1:B2)"; var...Json.NET: Json.NET 4.5 Release 10: New feature - Added Portable build to NuGet package New feature - Added GetValue and TryGetValue with StringComparison to JObject Change - Improved duplicate object reference id error message Fix - Fixed error when comparing empty JObjects Fix - Fixed SecAnnotate warnings Fix - Fixed error when comparing DateTime JValue with a DateTimeOffset JValue Fix - Fixed serializer sometimes not using DateParseHandling setting Fix - Fixed error in JsonWriter.WriteToken when writing a DateT...Readable Passphrase Generator: KeePass Plugin 0.7.2: Changes: Tested against KeePass 2.20.1 Tested under Ubuntu 12.10 (and KeePass 2.20) Added GenerateAsUtf8 method returning the encrypted passphrase as a UTF8 byte array.patterns & practices: Prism: Prism for .NET 4.5: This is a release does not include any functionality changes over Prism 4.1 Desktop. These assemblies target .NET 4.5. These assemblies also were compiled against updated dependencies: Unity 3.0 and Common Service Locator (Portable Class Library).Snoop, the WPF Spy Utility: Snoop 2.8.0: Snoop 2.8.0Announcing Snoop 2.8.0! It's been exactly six months since the last release, and this one has a bunch of goodies in it. In particular, there is now a PowerShell scripting tab, compliments of Bailey Ling. With this tab, the possibilities are limitless. It basically lets you automate/script the application that you are Snooping. Bailey has a couple blog posts (one and two) on his tab already, and I am sure more is to come. Please note that if you do not have PowerShell installed, y...Z3: Z3 4.1.2: Minor fixes. Now, z3 compiles with gcc 4.7.x.NET Micro Framework: .NET MF 4.3 (Beta): This is the 4.3 Beta version of the .NET Micro Framework. Feature List for v4.3 Support for Visual Studio 2012 (including the Windows Desktop Express version) All v4.2 QFEs features and bug fixes (PWM enhancements, lwIP and network driver reliability improvements, Analog Output, WinUSB and latest GCC support) Improved diagnostic information for deployment Decreased boot time Bug fixes Work Item 1736 - Create link for MFDeploy under start menu Work Item 1504 - Customizing lwIP o...NTCPMSG: V1.2.0.0: Allocate an identify cableid for each single connection cable. * Server can asend to specified cableid directly.Team Foundation Server Word Add-in: Version 1.0.12.0622: Welcome to the Visual Studio Team Foundation Server Word Add-in Supported Environments Microsoft Office Word 2007 and 2010 X86 (32-bit) Team Foundation Server 2010 Object Model TFS 2010, 2012 and TFS Service supported, using TFS OM / Explorer 2010. Quality-Bar Details Tool has been reviewed by Visual Studio ALM Rangers Tool has been through an independent technical and quality review All critical bugs have been resolved Known Issues / Bugs WI#43553 - The Acceptance criteria is not pu...UMD????? - PC?: UMDEditor?????V2.7: ??:http://jianyun.org/archives/948.html =============================================================================== UMD??? ???? =============================================================================== 2.7.0 (2012-10-3) ???????“UMD???.exe”??“UMDEditor.exe” ?????????;????????,??????。??????,????! ??64????,??????????????bug ?????????????,???? ???????????????? ???????????????,??????????bug ------------------------------------------------------- ?? reg.bat ????????????。 ????,??????txt/u...Untangler: Untangler 1.0.0: Add a missing file from first releaseNew Projects3dBuzz: Denise's website for 3d projection mapping artists to develop a web community to show and discuss their work.Advanced DataGridView with Excel-like auto filter: Windows Forms DataGridView Control with Excel-Like auto-filter context menu Windows Forms DataGridView ??????? ? Excel-???????? ????-????????azure media services admin panel: Simple azure media services dashboard. Upload media assets, queue encoder tasks and stream your audio\video assets.BackupCleaner.Net: A C#.Net-based tool for automatically removing old backups selectively. It can be used when you already make daily backups on disk, and want to clean them up while still keeping some of the ones made weeks, months or years ago.Bible Lib: BibleLib is a .net compatible library containing information for books, chapters and verses in the Old Testament.CRM 4.0 to CRM 2011 Queues Upgrades: for more information and documentation, please refer to http://mayankp.wordpress.com/2012/05/25/crm-4-0-to-crm-2011-queues-upgrades/ CSV File Reader and Writer for .NET: C# classes for reading and writing CSV files. Support for multi-line fields, custom delimiter and quote characters, options for how empty lines are handled.DotNetNuke Boards: DNN Boards is a task management solution that allows each user to have their own task board or social group members can collaborate within a single board.FarmaciasCruzAzul: Sistema Cruz AzulFindValueInDatabase: This solution finds the value you input in the hole given database and tells you which columns of which tables have the value you are looking for.Fish Tank: Social networking site for Aquarium enthusiasts.GSBA Apps: GSBA App for Windows 8Heuristics for the Vehicle Routing Problem: This is the code for our class, IEMS 482.Icaro - UPN: Icaro UPN es la recopilación de todos los preyectos realizados en clases de los diferentes proyectos que Enseño, espero les Sirva.JSLogger - free logging library for JavaScript: JSLogger is a free JavaScript Library for log information during the duration of your client script. The target is very easy >>Find every javasvript error<<Just little strategy: Just little strategy writen in C# using XNA Game Studio Now under developmentLightweight Medata Reader: The Lightweight Metadata Reader (LMR) is a tooling friendly version of the CLR Reflection APIs that takes no dependency on the CLR Loader.My Solution: No description for it nowoden????: ???????????????^^ooaavee.net: TODOPath Splitter: Path Splitter uses Roslyn to convert a method into a set of methods each equivalent to a distinct execution path. Assume annotations are added for use with Pex.Planning Poker for Azure: Planning Poker application allows distributed teams to play planning poker just using web browser. It can be deployed to IIS or Azure cloud service.plasmatrim.net: A library for controlling the USB PlasmaTrim from a .net application.powersaver: A simple utility, which will turn off your monitor when you lock your work station.Project13251008: gterProject13261008: asdsaProject13271008: sdfPyfus Reload: Server-side framework for Dofus 1.29.1 gameRei do Biscuit: E-commerce do rei do biscuitSofire Suite v1.6: Sofire Suite v1.6Sofire XSql: Sofire XSqlSosa Analysis Module (SAM): Numerical Analysis and data visualization program for SOSA psychological experiment software.SyncProject: The summary is coming soon... Just be patient ! Tistory Syntax Highlighter: ???? SyntaxHighlighter ????TJBHJJ: this is a website for company!tricogol App: nonetuts: My first SVNWatchr Change Control Management: Change control management for development and administrative teams focused on lean or agile processes.WCF Simple multi chat: This is a simple Windows form application that it's like a 'chat room'. Multiple users can login and chat with others users. The chat's core is powered by WCFWindows Event Log Email Notification: This will read the windows event logs based on the supplied xpath filters and email the specified addresses if there are matches.

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  • ray collision with rectangle and floating point accuracy

    - by phq
    I'm trying to solve a problem with a ray bouncing on a box. Actually it is a sphere but for simplicity the box dimensions are expanded by the sphere radius when doing the collision test making the sphere a single ray. It is done by projecting the ray onto all faces of the box and pick the one that is closest. However because I'm using floating point variables I fear that the projected point onto the surface might be interpreted as being below in the next iteration, also I will later allow the sphere to move which might make that scenario more likely. Also the bounce coefficient might be as low as zero, making the sphere continue along the surface. So my naive solution is to project not only forwards but backwards to catch those cases. That is where I got into problems shown in the figure: In the first iteration the first black arrow is calculated and we end up at a point on the surface of the box. In the second iteration the "back projection" hits the other surface making the second black arrow bounce on the wrong surface. If there are several boxes close to each other this has further consequences making the sphere fall through them all. So my main question is how to handle possible floating point accuracy when placing the sphere on the box surface so it does not fall through. In writing this question I got the idea to have a threshold to only accept back projections a certain amount much smaller than the box but larger than the possible accuracy limitation, this would only cause the "false" back projection when the sphere hit the box on an edge which would appear naturally. To clarify my original approach, the arrows shown in the image is not only the path the sphere travels but is also representing a single time step in the simulation. In reality the time step is much smaller about 0.05 of the box size. The path traveled is projected onto possible sides to avoid traveling past a thinner object at higher speeds. In normal situations the floating point accuracy is not an issue but there are two situations where I have the concern. When the new position at the end of the time step is located very close to the surface, very unlikely though. When using a bounce factor of 0, here it happens every time the sphere hit a box. To add some loss of accuracy, the motivation for my concern, is that the sphere and box are in different coordinate systems and thus the sphere location is transformed for every test. This last one is why I'm not willing to stand on luck that one floating point value lying on top of the box always will be interpreted the same. I did not know voronoi regions by name, but looking at it I'm not sure how it would be used in a projection scenario that I'm using here.

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  • links for 2010-06-11

    - by Bob Rhubart
    The Web-Service May Not be the Bottleneck! | Shopzilla Tech Blog The web-service doesn't perform We have a performance problem we're investigating Sound familiar? Is the web-service under test really the performance (tags: ping.fm cloud soa oracle coherence virtualization)

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  • Développer des fonctions scalaires (UDF) avec PLpgSQL, par SQLpro

    Bonjour, voici le premier d'une nouvelle série d'articles consacrés au développement des fonctions sous PLpgSQL Ce premier article est consacré aux fonctions scalaires appelées dans la norme SQL "UDF" pour User Defined Function Il sera suivi dans les mois prochains de deux autres articles : l'un sur les fonctions de manipulation des tables et l'autre sur les fonctions Sommaire : 0 - INTRODUCTION 1 - CRÉATION D'UNE FONCTION SCALAIRE 2 - UTILISATION DE LA FONCTION 3 - FONCTION AVEC LANGAGE SQL 4 - QUELQUES MOTS CLEFS DE PL/pgSQL 5 - ARGUMENTS 6 - VARIABLES ET CONSTANTES 7 - POLYMORPHISME 8 - STRUCTURES DE TEST ET BRANCHEMENTS 9 - GESTION D'ERRE...

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  • Why IBM DB2 DBAs Love Load Testing

    A load test gives the database administrator quite a lot of valuable information and may make the difference between poor and acceptable application performance. Here are some proactive tips to make your IBM DB2 production implementation a success.

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  • iPad2 - Yet Another Fundamental Defect in an Apple product

    - by Kit Ong
    First it was antenna defect in iPhone4 now it has been reported that some iPad 2 have display issues, Apple really needs to look at their manufacturing process. It doesn't help that workers are working like robots in their main supplier's factory Foxconn. More info on reported display light bleeding http://www.cultofmac.com/if-your-ipad-2-has-display-problems-do-not-return-it-heres-why/87197   How to check your iPad for dead pixel / light leak / bleed http://www.theipadguide.com/content/ipad-dead-pixel-test-how/7171269

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  • My version of UnhandledExceptionModule

    - by Michael Freidgeim
    I've created my own version of UnhandledExceptionModule independantly of codePlex project in 2007, I've used code from http://support.microsoft.com/kb/911816 with considerations from http://www.eggheadcafe.com/articles/20060305.asp   and done some refactoring. It also allows to use AppSettings["EventLogSourceName"]   The zip file also includes TestUnhandledExceptionWAP test project, that I used to investigate issue legacyUnhandledExceptionPolicy enabled="true" doesn't prevent ASP.NET application restarting   I've upload the code as patch here

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  • Library to fake intermittent failures according to tester-defined policy?

    - by crosstalk
    I'm looking for a library that I can use to help mock a program component that works only intermittently - usually, it works fine, but sometimes it fails. For example, suppose I need to read data from a file, and my program has to avoid crashing or hanging when a read fails due to a disk head crash. I'd like to model that by having a mock data reader function that returns mock data 90% of the time, but hangs or returns garbage otherwise. Or, if I'm stress-testing my full program, I could turn on debugging code in my real data reader module to make it return real data 90% of the time and hang otherwise. Now, obviously, in this particular example I could just code up my mock manually to test against a random() routine. However, I was looking for a system that allows implementing any failure policy I want, including: Fail randomly 10% of the time Succeed 10 times, fail 4 times, repeat Fail semi-randomly, such that one failure tends to be followed by a burst of more failures Any policy the tester wants to define Furthermore, I'd like to be able to change the failure policy at runtime, using either code internal to the program under test, or external knobs or switches (though the latter can be implemented with the former). In pig-Java, I'd envision a FailureFaker interface like so: interface FailureFaker { /** Return true if and only if the mocked operation succeeded. Implementors should override this method with versions consistent with their failure policy. */ public boolean attempt(); } And each failure policy would be a class implementing FailureFaker; for example there would be a PatternFailureFaker that would succeed N times, then fail M times, then repeat, and a AlwaysFailFailureFaker that I'd use temporarily when I need to simulate, say, someone removing the external hard drive my data was on. The policy could then be used (and changed) in my mock object code like so: class MyMockComponent { FailureFaker faker; public void doSomething() { if (faker.attempt()) { // ... } else { throw new RuntimeException(); } } void setFailurePolicy (FailureFaker policy) { this.faker = policy; } } Now, this seems like something that would be part of a mocking library, so I wouldn't be surprised if it's been done before. (In fact, I got the idea from Steve Maguire's Writing Solid Code, where he discusses this exact idea on pages 228-231, saying that such facilities were common in Microsoft code of that early-90's era.) However, I'm only familiar with EasyMock and jMockit for Java, and neither AFAIK have this function, or something similar with different syntax. Hence, the question: Do such libraries as I've described above exist? If they do, where have you found them useful? If you haven't found them useful, why not?

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  • Code Information Indicators in Visual Studio 2013

    - by DigiMortal
    Visual Studio 2013 introduces new code editor enhancement called Code Information Indicators (CII). CII is set of code editor extensions that make it easier to get information about code structure and changes. Also tests and test results can be easily accessible from code editor. In this posting I will introduce you most important new code indicators. Read more from my new blog @ gunnarpeipman.com

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  • Android 3.0 Music Player Video Preview

    - by Gopinath
    Earlier this week, some folks over on the XDA developers forum got their hands on a leaked test build of a revamped Android music player that could possibly be shipping with Android’s next OS upgrade, Honeycomb. This evening the footage was spotted by Engadget, and now the word is spreading like wildfire: Android is going to get a default music player that isn’t totally mediocre. via TechCrunch This article titled,Android 3.0 Music Player Video Preview, was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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  • VISUAL STUDIO 2010 GLOBAL LAUNCH

    - by Sayre Collado
    Hello Guys, The Visual Studio 2010 is here. You can test by downloading the free trial at this link http://www.microsoft.com/visualstudio/en-us/download and view the products features in this link http://www.microsoft.com/visualstudio/en-us/products . You can even watch the live launch at http://www.microsoft.com/visualstudio/en-us/watch-it-live Happy Programming.

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  • Un FAI anglais va équiper une ville entière en fibre à 1 Gbps, aimeriez-vous utiliser un tel débit chez vous ?

    Un FAI britannique va équiper toute une ville de fibre à 1 Gb pour un test grandeur nature, aimeriez-vous utiliser un tel débit ? Alors que la Commission Européenne vient de faire des recommandations précises pour aider les pays européens à avancer vers de meilleurs installations numériques, l'Angleterre semble avoir bien reçu le message concernant le fait de booster le réseau Internet. Le Royaume de sa Majesté a en effet décidé de devenir le pays de l'Union doté des meilleures connexions en 2015 Le secrétaire à la Culture, Jer...

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  • Onsite Interview : QA Engineer with more Emphasis on Java Skills

    - by coolrockers2007
    Hello I'm having a onsite interview for QA engineer with Startup. While phone interview the person said he would want to test my JAVA, JUnit and SQL skills on white board with more importance on Object-oriented skills, So what all can i questions can i expect ? One more important issue : How do i overcome the fear of White board interview ?. I'm very bad at White board sessions, i get fully tensed. Please suggest me tips to overcome my jinx

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