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  • What are they buying &ndash; work or value?

    - by Jamie Kurtz
    When was the last time you ordered a pizza like this: “I want the high school kid in the back to do the following… make a big circle with some dough, curl up the edges, then put some sauce on it using a small ladle, then I want him to take a handful of shredded cheese from the metal container and spread it over the circle and sauce, then finally I want the kid to place 36 pieces of pepperoni over the top of the cheese” ?? Probably never. My typical pizza order usually goes more like this: “I want a large pepperoni pizza”. In the world of software development, we try so hard to be all things agile. We: Write lots of unit tests We refactor our code, then refactor it some more We avoid writing lengthy requirements documents We try to keep processes to a minimum, and give developers freedom And we are proud of our constantly shifting focus (i.e. we’re “responding to change”) Yet, after all this, we fail to really lean and capitalize on one of agile’s main differentiators (from the twelve principles behind the Agile Manifesto): “Working software is the primary measure of progress.” That is, we foolishly commit to delivering tasks instead of features and bug fixes. Like my pizza example above, we fall into the trap of signing contracts that bind us to doing tasks – rather than delivering working software. And the biggest problem here… by far the most troubling outcome… is that we don’t let working software be a major force in all the work we do. When teams manage to ruthlessly focus on the end product, it puts them on the path of true agile. It doesn’t let them accidentally write too much documentation, or spend lots of time and money on processes and fancy tools. It forces early testing that reveals problems in the feature or bug fix. And it forces lots and lots of customer interaction.  Without that focus on the end product as your deliverable… by committing to a list of tasks instead of a list features and bug fixes… you are doomed to NOT be agile. You will end up just doing stuff, spending time on the keyboard, burning time on timesheets. Doing tasks doesn’t force you to minimize documentation. It makes it much harder to respond to change. And it will eventually force you and the client into contract haggling. Because the customer isn’t really paying you to do stuff. He’s ultimately paying for features and bug fixes. And when the customer doesn’t get what they want, responding with “well, look at the contract - we did all the tasks we committed to” doesn’t typically generate referrals or callbacks. In short, if you’re trying to deliver real value to the customer by going agile, you will most certainly fail if all you commit to is a list of things you’re going to do. Give agile what it needs by committing to features and bug fixes – not a list of ToDo items. So the next time you are writing up a contract, remember that the customer should be buying this: Not this:

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  • Restart and/or graphics problem in Ubuntu 12.04

    - by kara
    I having been using 12.04 for a couple of months now, with v. little problems. The other day I restarted my computer, and though I think it rebooted, the screen would be black. I could not even get a visual from a live cd. Finally, I was able to get it to load, but the resolution has been completely off. The computer thinks I have a laptop screen, when I actually have a ViewSonic VP2330wb, and it detects only two resolutions. And still, I have a problem with rebooting. If the screen locks after I leave it for a while, I can't get a visual back, and then when I force a shutdown, it takes 3 times for me to get a grub screen. Then I have to boot in recovery mode, and then finally in normal mode, but the screen is still always off. This is my video card: description: VGA compatible controller product: 2nd Generation Core Processor Family Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 09 width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list configuration: latency=0 resources: memory:fe000000-fe3fffff memory:d0000000-dfffffff ioport:f000(size=64) I am a new ubuntu user, and am at my wits end. Any help would be greatly appreciated.

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  • Is a larger hard drive with the same cache, rpm, and bus type faster?

    - by Joel Coehoorn
    I recently heard that, all else being equal, larger hard are faster than smaller. It has to do with more bits passing under the read head as the drive spins - since a large drive packs the bits more tightly, the same amount of spin/time presents more data to the read head. I had not heard this before, and was inclined to believe the the read heads expected bits at a specific rate and would instead stagger data, so that the two drives would be the same speed. I now find myself looking at purchasing one of two computer models for the school where I work. One model has an 80GB drive, the other a 400GB (for ~$13 more). The size of the drive is immaterial, since users will keep their files on a file server where they can be backed up. But if the 400GB drive will really deliver a performance boost to the hard drive, the extra money is probably worth it. Thoughts?

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  • ignore or override current document page formatting with predefined settings automatically libreoffice

    - by alex
    When opening a document made by someone else, I would like the margins to automatically be set to 0.4 cm, the page orientation to landscape and page size to A3. My dad gets emailed a spreadsheet weekly and he prints them off. To fit them onto one page he applies these settings, which is quite laborious. I thought that there must be a quicker way of doing this! I tried creating a new default template with these settings but this only works for a new blank document. I tried to create a style to quickly apply these settings but I realised these styles are document / template specific (?) and so don't appear when opening someone else's document. Anyone have any ideas how I can do this? Thanks =]

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  • Apache on Mac Mavericks issue

    - by Michael
    Trying to run Apache so that I can create a testing server on my mac.When I start apache it starts, but it doesn't run (no connection to local host. Ill upload the unix,you'll see that after starting there is no processes, and I did a check to show you what was running on my port 80... I don't entirely know that means. Michaels-MacBook-Pro-3:~ michaelramos$ sudo apachectl start Michaels-MacBook-Pro-3:~ michaelramos$ ps aux | grep httpd michaelramos 348 0.0 0.0 2442000 624 s000 S+ 8:51AM 0:00.00 grep httpd Michaels-MacBook-Pro-3:~ michaelramos$ sudo apachectl start org.apache.httpd: Already loaded Michaels-MacBook-Pro-3:~ michaelramos$ sudo lsof -i ':80' COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME ocspd 96 root 18u IPv4 0x8402f926599c58df 0t0 TCP dhcp-92-67.radford.edu:49267->108.162.232.196:http (ESTABLISHED) ocspd 96 root 20u IPv4 0x8402f926599c58df 0t0 TCP dhcp-92-67.radford.edu:49267->108.162.232.196:http (ESTABLISHED) ocspd 96 root 21u IPv4 0x8402f926599c50f7 0t0 TCP dhcp-92-67.radford.edu:49268->108.162.232.206:http (ESTABLISHED) ocspd 96 root 23u IPv4 0x8402f926599c50f7 0t0 TCP dhcp-92-67.radford.edu:49268->108.162.232.206:http (ESTABLISHED)

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  • Dependency injection: How to sell it

    - by Mel
    Let it be known that I am a big fan of dependency injection (DI) and automated testing. I could talk all day about it. Background Recently, our team just got this big project that is to built from scratch. It is a strategic application with complex business requirements. Of course, I wanted it to be nice and clean, which for me meant: maintainable and testable. So I wanted to use DI. Resistance The problem was in our team, DI is taboo. It has been brought up a few times, but the gods do not approve. But that did not discourage me. My Move This may sound weird but third-party libraries are usually not approved by our architect team (think: "thou shalt not speak of Unity, Ninject, NHibernate, Moq or NUnit, lest I cut your finger"). So instead of using an established DI container, I wrote an extremely simple container. It basically wired up all your dependencies on startup, injects any dependencies (constructor/property) and disposed any disposable objects at the end of the web request. It was extremely lightweight and just did what we needed. And then I asked them to review it. The Response Well, to make it short. I was met with heavy resistance. The main argument was, "We don't need to add this layer of complexity to an already complex project". Also, "It's not like we will be plugging in different implementations of components". And "We want to keep it simple, if possible just stuff everything into one assembly. DI is an uneeded complexity with no benefit". Finally, My Question How would you handle my situation? I am not good in presenting my ideas, and I would like to know how people would present their argument. Of course, I am assuming that like me, you prefer to use DI. If you don't agree, please do say why so I can see the other side of the coin. It would be really interesting to see the point of view of someone who disagrees. Update Thank you for everyone's answers. It really puts things into perspective. It's nice enough to have another set of eyes to give you feedback, fifteen is really awesome! This are really great answers and helped me see the issue from different sides, but I can only choose one answer, so I will just pick the top voted one. Thanks everyone for taking the time to answer. I have decided that it is probably not the best time to implement DI, and we are not ready for it. Instead, I will concentrate my efforts on making the design testable and attempt to present automated unit testing. I am aware that writing tests is additional overhead and if ever it is decided that the additional overhead is not worth it, personally I would still see it as a win situation since the design is still testable. And if ever testing or DI is a choice in future, the design can easily handle it.

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  • Congratulations to 2012 Innovation Award winners in BPM category

    - by Manoj Das
    Last year many of our customers went live on BPM 11g. It is my extreme pleasure to congratulate two of them – Amadeus and Navistar – for being awarded Oracle Fusion Middleware Innovation Award at Oracle OpenWorld 2012. We invited our customers to submit their most innovative BPM implementations that have delivered substantiated value to them. This year we saw more than 20 submissions from our customers seeing significant business value from their live BPM 11g deployments. The submissions came from across the world, spanning various industry verticals including manufacturing, healthcare, logistics, Hi-Tech, Public Sector, Education and covering many process usage patterns. Award submissions were evaluated based on the uniqueness of their business case, business benefits, level of impact relative to the size of the organization, complexity and magnitude of implementation, and the originality of architecture. Amadeus Team Receiving Innovation Award from Hasan Rizvi Congratulations to Amadeus and Navistar and their teams on being recognized from among some very strong submissions and more importantly for the business value delivered. It is an honor to be part of your success and to play a small role in the innovation you drive. Navistar is a leading truck manufacturing company which produces International® brand commercial and military trucks, MaxxForce® brand diesel engines, IC Bus™ brand school and commercial buses, and Navistar RV brands of recreational vehicles. The company also provides truck and diesel engine service parts. Amadeus is a leading transaction processor for the global travel and tourism industry, providing transaction processing power and technology solutions to both travellers and travel providers. Both Navistar and Amadeus have leveraged Oracle BPM Suite to improve visibility into their business and made their business more agile and efficient. We congratulate them again and wish them continued success in their business and future BPM initiatives.

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  • Heightmap and Textures

    - by Robert
    Im trying to find the "best way" to apply a texture to a heightmap with opengl 3.x. Its really hard to find something on google because tutorials are olds and they're all using different methods, im really lost and i dont know what to use at all. Here is my code that generates the heightmap (its basic) float[] vertexes = null; float[] textureCoords = null; for(int x = 0; x < this.m_size.width; x++) { for(int y = 0; y < this.m_size.height; y++) { vertexes ~= [x, 1.0f, y]; textureCoords ~= [cast(float)x / 50, cast(float)y / 50]; } } As you can see, i dont know how to apply the texture at all (i was using / 50 for my tests). Result of that code : I would like to have something very basic like : (you can find more pics in his blog) Edit : my texture size is 1024x1024.

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  • When to use each user research method

    - by user12277104
    There are a lot of user research methods out there, but sometimes we get stuck in a rut, conducting all formative usability testing before coding, or running surveys to gather satisfaction data. I'll be the first to admit that it happens to me, but to get out of a rut, it just takes a minute to look at where I am in the design & development cycle, what kind(s) of data I need, and what methods are available to me. We need reminders, or refreshers, every once in a while. One tool I've found useful is a graphic organizer that I created many years ago. It's been through several revisions, as I've adapted it to the product cycles of the places I've worked, changed my mind about how to categorize it, and added methods that I've used or created over time. I shared a version of this table at the 2012 International UPA conference, and I was contacted by someone yesterday who wanted to use it in a university course on user-center design. I was flattered at the the thought, but embarrassed, because I was sure it needed updating -- that was a year ago, after all. But I opened it today, and really, there's not much I'd change -- sure, I could add some nuance regarding what types of formative testing, such as modality (remote, unmoderated remote, or in-person) or flavor of testing (RITE, RITE-Krug, comparative, performance), but I think it's pretty much ok as is. Click on the image below, to get the full-size PDF. And whether it's entirely "right" or "wrong" isn't the whole value of looking at these methods across the product lifecycle. The real value lies in the reminder that I have options. And what those options are change as the field changes, so while I don't expect this graphic to have an eternal shelf life, it's still ok a year after I last updated it. That said, if you find something missing or out of place, let me know :) 

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  • Sustainability at Oracle OpenWorld

    - by Oracle OpenWorld Blog Team
    By Evelyn Neumayr Leading businesses - not to mention individuals - recognize that environmental responsibility is good business. Well-thought out and well-structured environmental practices deliver triple benefit: to people, profits, and our planet. IT, as a central part of most organizations' business strategies, plays a pivotal role in developing environmental initiatives. Any Oracle OpenWorld attendee interested in learning how to use Oracle products to reduce both their organization’s environmental footprint, as well as their costs, should attend one of the many sustainability sessions being held at the conference. If you can only attend one sustainability-focused session, this is the one not to miss, where you can learn about innovative sustainability practices from customers on the leading edge. Eco-Enterprise Innovation Awards and the Business Case for SustainabilityWednesday, October 3, Moscone West 300510:15 - 11:15 a.m. If you can attend several sessions that have a sustainability focus, look here to find the listing of sessions that drill down into a specific product, where the discussion will focus on how that product can help achieve sustainability while improving enterprise operational efficiencies. Regardless of size and scope, all efforts are worthwhile. To learn more, go to the Sustainability Matters blog.

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  • wget has a 4 second delay

    - by guisius
    Hello. I have tried to wget a page with windows/mac, and the response is instant while the linux vesion needs to wait for 4 seconds before it shows the response. I just hope this can be solved. More information added: in Ubuntu : wget xxx://192.168.0.135/test.cgi?cmd= -O test.txt --2011-03-04 14:21:17-- xxx://192.168.0.135/test.cgi?cmd= Connecting to 192.168.0.135:80... connected. HTTP request sent, awaiting response... 200 OK Length: unspecified [text/html] Saving to: `test.txt' [ <=> ] 17 --.-K/s in 0s 2011-03-04 14:21:22 (1.88 MB/s) - `test.txt' saved [17] while in Mac OS : wget xxx://192.168.0.135/test.cgi?cmd= -O test.txt --2011-03-04 14:22:33-- xxx://192.168.0.135/test.cgi?cmd= Connecting to 192.168.0.135:80... connected. HTTP request sent, awaiting response... 200 OK Length: unspecified [text/html] Saving to: `test.txt' [ <=> ] 17 --.-K/s in 0s 2011-03-04 14:22:33 (755 KB/s) - `test.txt' saved [17] in ubuntu it delays 4 seconds while windows and mac will not i believe it may related to some setting in the network config such as packet size , window frame , but i have no idea to set this PS: because the limit of the post not allow to post the url so i mark this as xxx

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  • How to manage many mobile device users at server side?

    - by Rami
    I built a social Android application in which users can see other users around them by GPS location. At the beginning thing went well as I had low number of users, but now that I have increasing number of users (about 1500 +100 every day) it has revealed a major problem in my design. In my Google App Engine servlet I have static HashMap that holds all the users profiles objects, currently 1500 and this number will increase as more users register. Why I'm doing it? Every user that requests for the users around him compares his GPS with other users and checks if they are in his 10km radius. This happens every five minutes on average. Consequently, I can't get the users from db every time because GAE read/write operation quota will tear me apart. The problem with this design is? As the number of users increases, the Hashmap turns to null every 4-6 hours, I think that this time is getting shorter, but I'm not sure. I'm fixing this by reloading the users from the db every time I detect that it becomes null, but this causes DOS to my users for 30 sec, so I'm looking for better solution. I'm guessing that it happens because the size of the hashmap. Am I right? I have been advised to use a spatial database, but that means that I can't work with GAE any more and it means that I need to build my big server all over again and lose my existing DB. Is there something I can do with the existing tools? Thanks.

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  • How can I get my monitor's maximum resolution without the proprietary AMD graphic driver installed?

    - by Venki
    I am using Ubuntu 14.04. I have an AMD Radeon 5570 HD graphic card. Actually, the default open source REDWOOD drivers aren't allowing me to choose my monitor's maximum screen resolution(which is 1366 x 768). I just have two resolutions displayed which are 1024x768 and 800x600 . If I give the command : xrandr -s 1366x768 then the output is: Size 1366x768 not found in available modes So just for the sake of getting 1366x768 resolution I am forced to install the proprietary graphic driver that AMD gives me from its site. But if I install it(which itself is quite a problem-prone process), I undergo a lot of 'inconvenience'. Sometimes after an OS update, the driver crashes unity. Then I will have to uninstall that driver from a tty and google around for a solution. Also I encounter screen tearing problems occasionally. In addition I also cant see my login screen(See this question which states this particular problem). The main problem is AMD does not update its driver as quick as Ubuntu updates its OS. This is quite irritating. So, I want the maximum resolution(and performance) that my graphics card and monitor can give me without installing the 'problematic' proprietary graphic card driver that AMD gives. Is this possible? Suggestions please. Thanks in advance. PS :- More system specs details:- Intel i3 2100 processor AMD P8H61-M PLUS2 motherboard AMD Radeon 5570 HD graphic card DELL monitor (BTW, Thank you for reading through my elaborate description!)

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  • rsync doesn't use delta transfer on first run

    - by ockzon
    I'm trying to synchronize a large local directory (with a batch file using rsync 3.0.7 on Cygwin, Windows 7 x64, 30k files, 200gb size) to a remote server (Debian x64 with kernel 2.6, rsyncd 3.0.7) over a slow internet connection (90kbyte/s upload). I know almost all files are identical and I verified that using md5sum locally and remotely. However when executing rsync from my local machine every file gets transferred completely for the first time. When I terminate the batch file after a few transfers and run it again then the already transferred files are skipped. But as soon as it gets to a file not yet transferred it uploads the file as a whole again instead of noticing that the checksum is the same locally and remotely. The batch file calling rsync looks like this (backslashes and line brakes added here for readability): c:\cygwin\bin\rsync.exe --verbose --human-readable --progress --stats \ --recursive --ignore-times --password-file pwd.txt \ /cygdrive/d/ftp/data/ \ rsync://[email protected]:33400/data/ | \ c:\cygwin\bin\tee.exe --append rsync.log I experimented using the following parameters in varying combinations but that didn't help either: --checksum --partial --partial-dir=/tmp/.rsync-partial --compress

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  • Ubuntu 12.04.1 LTS and Nvidia dirver (304.51) 64bit: problem 640x480

    - by nibianaswen
    I have a problem with this configuration: Asus K55V, Ubuntu 12.04 LTS and Nvidia driver 304.51. I have remove the nouveau driver with: apt-get --purge remove xserver-xorg-video-nouveau I installed the official nvidia driver (from www.nvidia.com) but when I reboot the PC the resolution of screen is only 640x480 and the monitor is resized. Mo solution at this problem if i change the xorg.conf. Now i have uninstall the nvidia driver and reinstall with sudo apt-get purge nvidia-current sudo apt-add-repository ppa:ubuntu-x-swat/x-updates sudo apt-get update sudo apt-get install nvidia-current When I reboot the screen resolution and size is OK, but if I start nvidia-setting I received the message: You do not appear to be using the NVIDIA X driver. and with command: sudo lshw -c display | grep driver I received configuration: driver=i915 latency=0 This sound like the system is using the Intel card. When I launch command lspci | grep VGA the output is: 00:02.0 VGA compatible controller: Intel Corporation Ivy Bridge Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation Device 1058 (rev ff) And there is no /etc/X11/xorg.conf. I have read a lot of guides on internet but without success.. How i can use nvidia card with the driver that i have installed?

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  • Completely replacing (upgrading) a RAID 5 array of disks on an ESXi server

    - by jshin47
    I have a development server that runs several VM on ESXi 5. It has an array of disks in the RAID 5 configuration where all of the disks are currently the same size. I would like to expand storage on this box greatly, but I am not sure what the smartest way to go about this would be. My current plan is to: Turn off all VM Copy VM folders from server to another location Verify that I can mount all the VM on the new location (ie that the copy went ok) Replace all the disks with new, bigger ones Reinstall ESXi5 Copy the VM back over This seems like it might take a while to accomplish and is not terribly slick, especially since I will have to reconfigure ESXi 5, but is there a smarter alternative?

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  • Moving objects colliding when using unalligned collision avoidance (steering)

    - by James Bedford
    I'm having trouble with unaligned collision avoidance for what I think is a rare case. I have set two objects to move towards each other but with a slight offset, so one of the objects is moving slightly upwards, and one of the objects is moving slightly downwards. In my unaligned collision avoidance steering algorithm I'm finding the points on the object's forward line and the other object's forward line where these two lines are the closest. If these closest points are within a collision avoidance distance, and if the distance between them is smaller than the two radii of the two object's bounding spheres, then the objects should steer away in the appropriate direction. The problem is that for my case, the closest points on the lines are calculated to be really far away from the actual collision point. This is because the two forward lines for each object are moving away from each other as the objects pass. The problem is that because of this, no steering takes place, and the two objects partially collide. Does anyone have any suggestions as to how I can correctly calculate the point of collision? Perhaps by somehow taking into account the size of the two objects?

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  • Multiplayer online game engine/pipeline

    - by Slav
    I am implementing online multiplayer game where client must be written in AS3 (Flash) to embed game into browser and server in C++ (abstract part of which is already written and used with other games). Networking models may differ from each other, but currently I'm looking toward game's logic run on both client and server parts but they're written on different languages while it's not the main problem. My previous game (pretty big one - was implemented with efforts of ~5 programmers in 1.5 years) was mainly "written" within electronic tables as structured objects with implemented inheritance: was written standalone tool which generated AS3 and C++ (languages of platforms to which the game was published) using specified electronic tables file (.xls or .ods). That file contained ~50 tables with ~50 rows and ~50 columns each and was mainly written by game designers which do not know any programming languages. But that game was single-player. Having declared problem with my currently implementing MMO, I'm looking toward some vast pipeline, where will be resolved such problems like: game objects descriptions (which starships exist within game, how much HP they have, how fast move, what damage deal...) actions descriptions (what players or NPCs can do: attack each other, collect resources, build structures, move, teleport, cast spells) - actions are transmitted through server between clients influences (what happens when specified action applied on specified object, e.i "Ship A attacked Ship B: field "HP" of Ship B reduced by amount of field "damage" of Ship A" Influences can be much more difficult, yes, e.i. "damage is twice it's size when Ship has =5 allies around him in a 200 units range during night" and so on. If to be able to write such logic within some "design document" it will be easily possible to: let designers to do their job without programmer's intervention or any bug-prone programming validate described logic transfer (transform, convert) to any programming language where it will be executed Did somebody worked on something like that? Is there some tools/engines/pipelines which concernes with it? How to handle all of this problems simultaneously in a best way or do I properly imagine my tasks and problems to myself?

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  • How do you monitor the health of a mirrored disk in Windows?

    - by NitroxDM
    I have a Mirrored Dynamic disk on my Windows 2003 Server. How do you monitor the health of the volume? Is there a way to have the server send an email when there is an issue with the volume? Is there a way to have the server run S.M.A.R.T. tests? EDIT: Nothing says WTF like logging into a client server, running DISKPART LIST VOLUME and seeing this. Volume ### Ltr Label Fs Type Size Status Info ---------- --- ----------- ----- ---------- ------- --------- -------- Volume 0 X xDrive NTFS Mirror 233 GB Failed Rd Volume 1 C NTFS Simple 57 GB Healthy System Volume 2 D DVD-ROM 0 B Healthy Volume 3 F RAW Partition 466 GB Healthy Volume 4 E New Volume NTFS Partition 932 GB Healthy

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  • How to handle monetary values in PHP and MySql?

    - by Songo
    I've inherited a huge pile of legacy code written in PHP on top of a MySQL database. The thing I noticed is that the application uses doubles for storage and manipulation of data. Now I came across of numerous posts mentioning how double are not suited for monetary operations because of the rounding errors. However, I have yet to come across a complete solution to how monetary values should be handled in PHP code and stored in a MySQL database. Is there a best practice when it comes to handling money specifically in PHP? Things I'm looking for are: How should the data be stored in the database? column type? size? How should the data be handling in normal addition, subtraction. multiplication or division? When should I round the values? How much rounding is acceptable if any? Is there a difference between handling large monetary values and low ones? Note: A VERY simplified sample code of how I might encounter money values in everyday life: $a= $_POST['price_in_dollars']; //-->(ex: 25.06) will be read as a string should it be cast to double? $b= $_POST['discount_rate'];//-->(ex: 0.35) value will always be less than 1 $valueToBeStored= $a * $b; //--> any hint here is welcomed $valueFromDatabase= $row['price']; //--> price column in database could be double, decimal,...etc. $priceToPrint=$valueFromDatabase * 0.25; //again cast needed or not? I hope you use this sample code as a means to bring out more use cases and not to take it literally of course. Bonus Question If I'm to use an ORM such as Doctrine or PROPEL, how different will it be to use money in my code.

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  • Can't detect collision properly using Rectangle.Intersects()

    - by Daniel Ribeiro
    I'm using a single sprite sheet image as the main texture for my breakout game. The image is this: My code is a little confusing, since I'm creating two elements from the same Texture using a Point, to represent the element size and its position on the sheet, a Vector, to represent its position on the viewport and a Rectangle that represents the element itself. Texture2D sheet; Point paddleSize = new Point(112, 24); Point paddleSheetPosition = new Point(0, 240); Vector2 paddleViewportPosition; Rectangle paddleRectangle; Point ballSize = new Point(24, 24); Point ballSheetPosition = new Point(160, 240); Vector2 ballViewportPosition; Rectangle ballRectangle; Vector2 ballVelocity; My initialization is a little confusing as well, but it works as expected: paddleViewportPosition = new Vector2((GraphicsDevice.Viewport.Bounds.Width - paddleSize.X) / 2, GraphicsDevice.Viewport.Bounds.Height - (paddleSize.Y * 2)); paddleRectangle = new Rectangle(paddleSheetPosition.X, paddleSheetPosition.Y, paddleSize.X, paddleSize.Y); Random random = new Random(); ballViewportPosition = new Vector2(random.Next(GraphicsDevice.Viewport.Bounds.Width), random.Next(GraphicsDevice.Viewport.Bounds.Top, GraphicsDevice.Viewport.Bounds.Height / 2)); ballRectangle = new Rectangle(ballSheetPosition.X, ballSheetPosition.Y, ballSize.X, ballSize.Y); ballVelocity = new Vector2(3f, 3f); The problem is I can't detect the collision properly, using this code: if(ballRectangle.Intersects(paddleRectangle)) { ballVelocity.Y = -ballVelocity.Y; } What am I doing wrong?

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  • Attempting to install .NET framework 4 *full* installs *client* instead

    - by msorens
    On a Win7 SP1 32-bit machine, I initially had .NET 4 client installed and wanted to upgrade to .NET 4 full. I downloaded the full installer dotNetFx40_Full_x86_x64.exe from Microsoft. After download the file showed 48.11MB, the correct size for the full package (vs. 41MB for the client). I ran the installer and it first prompted to repair or remove the existing package. I chose to remove, so uninstalled the two parts, 4 extended and 4 client. Reboot. I reran the installer and it began installation, showing that it was installing the client. Though this raised an eyebrow for me, I let it run to completion, thinking it might be reporting the full install in sections. But after completion, I again ended up with 4 extended and 4 client installed! Obviously I am missing something; ideas...?

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  • Why does 1GBit card have output limited to 80 MiB ?

    - by Gallus
    I'm trying to utilize maximal bandwidth provided by my 1GiB network card, but it's always limited to 80MiB (real megabytes). What can be the reason? Card description (lshw output): description: Ethernet interface product: DGE-530T Gigabit Ethernet Adapter (rev 11) vendor: D-Link System Inc physical id: 0 bus info: pci@0000:03:00.0 logical name: eth1 version: 11 serial: 00:22:b0:68:70:41 size: 1GB/s capacity: 1GB/s width: 32 bits clock: 66MHz capabilities: pm vpd bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation The card is placed in following PCI slot: *-pci:2 description: PCI bridge product: 82801 PCI Bridge vendor: Intel Corporation physical id: 1e bus info: pci@0000:00:1e.0 version: 92 width: 32 bits clock: 33MHz capabilities: pci subtractive_decode bus_master cap_list The PCI isn't any PCI Express right? It's a legacy PCI slot? So maybe this is the reason? OS is a linux.

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  • User reduced LVM logical volume without resizing filesystem

    - by Matthew
    I received an email yesterday that one of our users was trying to make room for a heartbeat/clustering package which requires its own partition to act as a voting disk. To do this, he attempted to reduce the size of the root partition's logical volume, and then create a new logical volume for this purpose. However, he forgot to resize the filesystem first (or include the -r switch in the command). He also forgot to unmount the root partition by running this process from a rescue cd. The system is now refusing to boot into the OS with the following error: Either the superblock or the partition table is likely to be corrupt! Unexpected Inconsistency; run fsck manually. The system them drops the user into single user mode. Is it possible to rescue the filesystem, or is it hosed? Its running ext3.

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  • "Disk Not Found" Error when trying to install iso image of CentOs on ESXI using VSphere

    - by kamal
    When trying to install CentOs setup as an iso image on datastore, i get an error : "Disk Not Found". I am using ESXi 4.1 as host VM. Is there a way to attach DVD/CD as iso image ? I tried "Connect at Power on" Checked and Connect CD/DVD on the VSphere Console, but i still am unable ot get the iso image recognized as a DVD mounted image: Solved: if i look at the image size, it was 11 MB, so it WAS a boot iso, but nithing else, if we compare it with other boot images with complete iso's therein lies the solution. This boot.iso was from rBUILD/Conary packaging

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