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• How do developers verify that software requirement changes in one system do not violate a requirement of downstream software systems?

  - by Peter Smith

  In my work, I do requirements gathering, analysis and design of business solutions in addition to coding. There are multiple software systems and packages, and developers are expected to work on any of them, instead of being assigned to make changes to only 1 system or just a few systems. How developers ensure they have captured all of the necessary requirements and resolved any conflicting requirements? An example of this type of scenario: Bob the developer is asked to modify the problem ticket system for a hypothetical utility repair business. They contract with a local utility company to provide this service. The old system provides a mechanism for an external customer to create a ticket indicating a problem with utility service at a particular address. There is a scheduling system and an invoicing system that is dependent on this data. Bob's new project is to modify the ticket placement system to allow for multiple addresses to entered by a landlord or other end customer with multiple properties. The invoicing system bills per ticket, but should be modified to bill per address. What practices would help Bob discover that the invoicing system needs to be changed as well? How might Bob discover what other systems in his company might need to be changed in order to support the new changes\business model? Let's say there is a documented specification for each system involved, but there are many systems and Bob is not familiar with all of them. End of example. We're often in this scenario, and we do have design reviews but management places ultimate responsibility for any defects (business process or software process) on the developer who is doing the design and the work. Some organizations seem to be better at this than others. How do they manage to detect and solve conflicting or incomplete requirements across software systems? We currently have a lot of tribal knowledge and just a few developers who understand the entire business and software chain. This seems highly ineffective and leads to problems at the requirements level.

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• I want to sell my software [C# desktop application] but I was Stuck in licencing [closed]

  - by Surendra Soni

  Possible Duplicate: if I use .NET Framework for my application, do I have to pay anything to Microsoft? I have developed a desktop application called "Institute Management System" which has modules like Class manager, Subject manager, Topics manager, Student inquiry manager Student admission manager, Fees manager, Exam manager etc. using C# for the front end and MS Access for the back end. The main problem is that I want to sell it and earn some money but I heard that my application needs to be registered at Microsoft, and I would have to get a license from them for selling, and have to pay them money too. I have spent four months developing it at my own expense, and worked very hard to develop it. So I want some tips, advice, any suggestion for the same. Please also tell me the procedure for all of the required registrations and payment issues. And I also want to ask you if you Can you suggest any other technology where I develop my application and sell it without worrying about licencing and related issues? I am now more confused about that "MS technology is open source or not? "

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• HTML5 Development for Dummies

  - by Geertjan

  What's HTML5 all about and what does it actually mean, concretely, to develop HTML5 applications? NetBeans IDE 7.3 provides something called "Project Easel", which is a bundling of HTML5-related tools into a coherent toolset. Within a matter of hours, you'll know everything you need to know about what all this is about if you follow the steps below.  Get A Solid Overview. Start by viewing this screencast from JavaOne 2012 (click the media link on the right side once you've clicked the link below, a downloadable MP4 file is also available there):https://oracleus.activeevents.com/connect/sessionDetail.ww?SESSION_ID=4038That is an awesome way to get you in the right mindframe for what HTML5 is and how it fits into the programming world, together with a very cool and entertaining demo, presented by JB Brock. He starts with about three slides and then does a super awesome demo that puts you into the picture very quickly. Understand How HTML5 Relates To Java EE. Now here's a very cool follow up to the above, again demo-driven (click the media links on the right side once you've clicked the link below):https://oracleus.activeevents.com/connect/sessionDetail.ww?SESSION_ID=4737David Konecny takes the Affable Bean project created via the NetBeans E-commerce Tutorial and creates an HTML5 front end for it! I.e., you are shown how HTML5 can provide a different front end, as an alternative to JSF. Why would you do that? Well, that's explained in David's session, as well as in JB Brock's session, i.e., choose the right technology for the right situation. Sometimes HTML5 might make sense, other times JSF might make sense. Follow The NetBeans Screencasts. To revise and firm up everything you've learned from the above two JavaOne sessions, watch two screencasts by Ken Ganfield, part 1, Getting Started with HTML5 and part 2, Working with JavaScript in HTML5 Applications. In particular, you'll learn how NetBeans IDE provides tools to thoroughly cover the needs of HTML5 developers. Having taken the above three steps, you now have a thorough background, together with an understanding of the tools and procedures needed for creating your own HTML5 applications.

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• mediatomb fails with "respawning too fast, stopped"

  - by felix

  When I try to start mediatomb it fails. I see this in dmesg [...] [916349.374331] init: mediatomb main process ended, respawning [916349.394462] init: mediatomb main process (880) terminated with status 1 [916349.394512] init: mediatomb main process ended, respawning [916349.414598] init: mediatomb main process (882) terminated with status 1 [916349.414647] init: mediatomb respawning too fast, stopped My current /etc/init/mediatomb.conf looks like this. description "MediaTomb UPnP media server" author "Daniel van Vugt <vanvugt in launchpad>" start on (local-filesystems and net-device-up IFACE!=lo) stop on runlevel [!2345] respawn env CONFIGXML=/etc/mediatomb/config.xml env LOGFILE=/var/log/mediatomb.log env DEFAULT=/etc/default/mediatomb script [ -r $DEFAULT ] && . $DEFAULT [ ! $USER ] && USER=root [ ! $GROUP ] && GROUP=$USER if [ -n "$INTERFACE" ]; then INTERFACE_ARG="-e $INTERFACE" $ROUTE_ADD $INTERFACE fi exec mediatomb \ -c $CONFIGXML \ -u $USER \ -g $GROUP \ -l $LOGFILE \ $INTERFACE_ARG \ $OPTIONS end script post-stop script [ -r $DEFAULT ] && . $DEFAULT if [ -n "$INTERFACE" ]; then $ROUTE_DEL $INTERFACE fi end script

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• Discovering path through unknown territory

  - by TravisG

  Let's say all the AI knows about it's surroundings is a pixel-map that it has which clearly shows walkable terrain and obstacles. I want the AI to be able to traverse this terrain until it finds an exit point. There are some restrictions: There is always a way to the exit in the entire map that the AI walks around in, but there may be dead ends. The path to the exit is always pretty random, meaning that if you stand at crossroads, nothing indicates which direction would be the right one to go. It doesn't matter if the AI reaches a dead end, but it has to be able walk back out of it to a previously not inspected location and continue its search there. Initially, the AI starts out knowing only the starting area of the whole map. As it walks around, new points will be added to the pixel-map as the AI corresponding to the AIs range of sight (think of it like the AI is clearing the fog of war) The problem is in 2D space. All I have is the pixel map. There are no paths in the pixel map which are "too narrow". The AI fits through everything. It shouldn't be a brute force solution. E.g. it would be possible to simply find a path to each pixel in the pixel map that is yet undiscovered (with A*, for example), which will lead to the AI discovering new pixels. This could be repeated until the end is reached. The path doesn't have to be the shortest path (this is impossible without knowing the entire map beforehand), but when movements within the visible area are calculated, the shortest and from a human standpoint most logical path should be taken (e.g. if you can see a way out of your room into a hallway, you would obviously go there instead of exploring the corner of your current room). What kind of approaches to solve this problem are there?

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• Working with data and meta data that are separated on different servers

  - by afuzzyllama

  While developing a product, I've come across a situation where my group wants to store meta data for data entry forms (questions, layout, etc) in a different database then the database where the collected data is stored. This is mostly for security because we want to be able to have our meta data public facing, while keeping collected data as secure as possible. I was thinking about writing a web service that provides the meta information that the data collection program could access. The only issue I see with this approach is the front end is going to have to match the meta data with the collected data, which would be more efficient as a join on the back end. Currently, this system is slated to run on .NET and MSSQL. I haven't played around with .NET libraries running in SQL, but I'm considering trying to create logic that would pull from the web service, convert the meta data into a table that SQL can join on, and return the combined data and meta data that way. Is this solution the wrong way to approach the problem? Is there a pattern or "industry standard" way of bringing together two datasets that don't live in the same database?

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• Using USB to Ethernet with Linux Ubuntu 12.04

  - by Sriram

  Being a newbie, Please excuse if the technical Jargon used is not an universally accepted one :) I have a particular device (say device A) whose USB2.0 driver is available from Linux community. Linux UBUNTU12.04 based PC is able to detect that device via the available driver. My requirement is to ensure that PC can exchange the command as well as data with the device A over TCP/IP packets (In other words, instead of just a USB Based driver, there should be a TCP/IP wrapper over the device USB driver and still does the same job as the USB driver was doing before) Bought an USB (Female) to RJ-45 adapter,connected Device A (male) USB to the USB Female end of the adapter and the Ethernet end connected to the router. PC also is connected to the same router so that both Device A and the PC have the IP address in the same subnet range. So the packets produced by the device A can be routed to the PC via some binding( not sure how I can achieve this, but conceptual idea) Here are the issues I can see as of now 1) USB to RJ-45 is just a hardware signal conversion and not a NIC in itself and hence no MAC/IP ADDRESS assigned. Can we bind a virtual NIC created in PC with this connector? 2) Any available USB TO IP command as well as data translation wrappers available? e.g. command for the device A on Ethernet converted to command for the device A on USB which is then acted upon the device as a command from the USB driver There is some missing link in my understanding and hence it would be of great help if you can bounce off some ideas on how I can take this forward so that Device A and PC exchange data over IP. Thanks and Regards, Sriram

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• links for 2010-06-01

  - by Bob Rhubart

  Venkatakrishnan J: Oracle BI EE 10.1.3.4.1 -- Do we need measures in a Fact Table? Troubleshooting from Rittman Mead's Venkatakrishnan J. (tags: oracle otn businessintelligence datawarehouse) Grid container support : JavaFX Composer An overview how JavaFX Composer supports the grid container. (tags: oracle sun javafx) John Brunswick: Site Studio Mobile Example - WCM Reuse The example highlighted in John Brunswick's post takes advantage of dynamic conversion capabilities in Oracle UCM that allow site content to be created and updated via MS Office documents.  (tags: oracle otn enterprise2.0) @glassfish: GlassFish 3 in the EC2 Cloud powering Dutch and Belgian community polls "The infrastructure is Amazon's Elastic Cloud Computing (EC2) environment because of the dynamic provisioning (elasticity) required by such an online service. Requests are handled directly by the grizzly layer of GlassFish with no extra front-end HTTP layer and shows great performance and scalability." -- The Aquarium (tags: oracle java sun glassfish cloud) James Morle: Flash Storage Will Be Cheap: The End of the World is Nigh "We now need technologies that look more like Oracle Exadata v2, with low-latency RDMA interfaces directly into the Operating System/Database. However, they need to easily and natively support other types of storage (unstructured data such as files, VMware datastores and so forth). The Exadata architecture lends itself well to changes in this area in both hardware trends and access protocols." -- James Morle (tags: oracle otn exadata database architecture virtualization) Java / Oracle SOA blog: HTTP binding in Soa Suite 11g PS2 (tags: ping.fm) Confessions of a Software Developer: Some Tips for Installing Oracle BPM 11g on Windows XP (tags: ping.fm) SOA and Java using Oracle technology: Book review: Oracle Coherence 3.5: Create internet scale applications using Oracle's high-performance data grid (tags: ping.fm)

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• How can we make agile enjoyable for developers that like to personally, independently own large chunks from start to finish

  - by Kris

  We’re roughly midway through our transition from waterfall to agile using scrum; we’ve changed from large teams in technology/discipline silos to smaller cross-functional teams. As expected, the change to agile doesn’t suit everyone. There are a handful of developers that are having a difficult time adjusting to agile. I really want to keep them engaged and challenged, and ultimately enjoying coming to work each day. These are smart, happy, motivated people that I respect on both a personal and a professional level. The basic issue is this: Some developers are primarily motivated by the joy of taking a piece of difficult work, thinking through a design, thinking through potential issues, then solving the problem piece by piece, with only minimal interaction with others, over an extended period of time. They generally complete work to a high level of quality and in a timely way; their work is maintainable and fits with the overall architecture. Transitioning to a cross-functional team that values interaction and shared responsibility for work, and delivery of working functionality within shorter intervals, the teams evolve such that the entire team knocks that difficult problem over. Many people find this to be a positive change; someone that loves to take a problem and own it independently from start to finish loses the opportunity for work like that. This is not an issue with people being open to change. Certainly we’ve seen a few people that don’t like change, but in the cases I’m concerned about, the individuals are good performers, genuinely open to change, they make an effort, they see how the rest of the team is changing and they want to fit in. It’s not a case of someone being difficult or obstructionist, or wanting to hoard the juiciest work. They just don’t find joy in work like they used to. I’m sure we can’t be the only place that hasn’t bumped up on this. How have others approached this? If you’re a developer that is motivated by personally owning a big chunk of work from end to end, and you’ve adjusted to a different way of working, what did it for you?

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• The value of an updated specification

  - by Mr. Jefferson

  I'm at the tail end of a large project (around 5 months of my time, 60,000 lines of code) on which I was the only developer. The specification documents for the project were designed well early on, but as always happens during development, some things have changed. For example: Bugs were discovered and fixed in ways that don't correspond well with the spec Additional needs were discovered and dealt with We found areas where the spec hadn't thought far enough ahead and had to change some implementation Etc. Through all this, the spec was not kept updated, because we were lean on resources (I know that's a questionable excuse). I'm hoping to get the spec updated soon when we have time, but it's a matter of convincing management to spend the effort. I believe it's a good idea, but I need some good reasoning; I can't speak from very much experience because I'm only a year and a half out of school. So here are my questions: What value is there in keeping an updated spec? How often should the spec be updated? With every change made that might affect it, just at the end of development, or something in between? EDIT to clarify: this project was internal, so no external client was involved. It's our product.

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• Program error trying to generate Outlook 2013 email from Visual Basic 2010 [on hold]

  - by Dewayne Pinion

  I am using vb to send emails through outlook. Currently we have a mix of outlook versions at our office: 2010 and 2013 with a mix of 32 bit and 64 bit (a mess, I know). The code I have works well for Outlook 2010: Private Sub btnEmail_Click(sender As System.Object, e As System.EventArgs) Handles btnEmail.Click CreateMailItem() End Sub Private Sub CreateMailItem() Dim application As New Application Dim mailItem As Microsoft.Office.Interop.Outlook.MailItem = CType(application.CreateItem( _ Microsoft.Office.Interop.Outlook.OlItemType.olMailItem), Microsoft.Office.Interop.Outlook.MailItem) 'Me.a(Microsoft.Office.Interop.Outlook.OlItemType.olMailItem) mailItem.Subject = "This is the subject" mailItem.To = "[email protected]" mailItem.Body = "This is the message." mailItem.Importance = Microsoft.Office.Interop.Outlook.OlImportance.olImportanceLow mailItem.Display(True) End Sub However, I cannot get this to work for 2013. I have referenced the version 15 dll for 2013 and it seems to be backward compatible, but when I try to use the above code for 2013 (it is 64 bit) it says it cannot start Microsoft Outlook. A program error has occured. This is happening on the application Dim statement line. I have tried googling around but there doesn't seem to be much out there referencing 2013 but I feel that the problem here probably has more to do with 64 bit than the software version. Thank you for any suggestions!

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• How to talk a client out of a Flash website?

  - by bunglestink

  I have recently been doing a bunch of web side projects through word of mouth recommendations only. Although I am much more a of a programmer than a designer by any means, my design skills are not terrible, and do not hate dealing with UI like many programmers. As a result, I find myself lured into a bunch of side projects where aside from a minimal back end for content administration, most of the programming is on front end interfaces (read javascript/css). By far the biggest frustration I have had is convincing clients that they do not want Flash. Aside the fact that I really do not enjoy Flash "development", there are many practical reasons why Flash is not desirable (lack of compatibility across devices, decreased client accessibility, plug-in requirements, increased development time, etc.). Instead of just flat out telling the clients "I will not build you a flash website", I would much rather use tactics to convince/explain to them that this is not what they actually want, ie: meet their requirements any better than standard html/css/js and distract users from their content. What kind of first hand experience do others have with this? How do you explain to someone that javascript/css/AJAX is usually a better option for most websites? Why do people want to use Flash so bad to begin with? This question pertains to clients who do not have any technical reasons for wanting flash, but just want it because they think it makes pretty websites.

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• Missing Operating System after trying to upgrade to Ubuntu 11

  - by Mauricio

  there! After trying to upgrade from Ubuntu 10.04 to 11, the upgrading process stopped when running and then I got an "out of disk, grub rescue" message when booting. After running Boot Repair, I got this results. Now I get "Missing Operating System" whent trying to boot. Bellow I show some results from some commands I gather from help foruns, but I still reached no solution. Could you please help me? Any enlightment will be very helpful! Disk Utility says "Disk has a few bad sectors". When trying to run the Self-test I get "FAILED (Read)" Here we have what Gparted says about the /dev/sda1 partition (ext4): Flags: boot Status: not mounted Warning: e2label: Attempt to read block from filesystem resulted in short read while trying to open /dev/sda1Couldn`t find valid filesystem superblockUnable to read the contents of this filesystem! From sudo fdisk -lI got: Disk /dev/sda: 320.1 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk identifier: 0x000e0596 Device Boot Start End Blocks Id System/dev/sda1 * 2048 607428607 303713280 83 Linux/dev/sda2 607430654 625141759 8855553 5 Extended/dev/sda5 607430656 625141759 8855552 82 Linux swap / SolarisDisk /dev/sdb: 320.1 GB, 320072933376 bytes255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000c3c41 Device Boot Start End Blocks Id System /dev/sdb1 * 63 625137344 312568641 c W95 FAT32 (LBA) " and fromsudo fdisk /dev/sda1I got fdisk: unable to read /dev/sda1: Inappropriate ioctl for device` From sudo mount /dev/sda1 /mntI got: mount: wrong fs type, bad option, bad superblock on /dev/sda1, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so From sudo update-grubI got: error: cannot read from `/dev/sda'. /usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?).

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• How to implement lockstep model for RTS game?

  - by user11177

  In my effort to learn programming I'm trying to make a small RTS style game. I've googled and read a lot of articles and gamedev q&a's on the topic of lockstep synchronization in multiplayer RTS games, but am still having trouble wrapping my head around how to implement it in my own game. I currently have a simple server/client system. For example if player1 selects a unit and gives the command to move it, the client sends the command [move, unit, coordinates] to the server, the server runs the pathfinding function and sends [move, unit, path] to all clients which then moves the unit and run animations. So far so good, but not synchronized for clients with latency or lower/higher FPS. How can I turn this into a true lockstep system? Is the right methodology supposed to be something like the following, using the example from above: Turn 1 start gather command inputs from player1 send to the server turn number and commands end turn, increment turn number The server receives the commands, runs pathfinding and sends the paths to all clients. Next turn receive paths from server, as well as confirmation that all clients completed previous turn, otherwise pause and wait for that confirmation move units gather new inputs end turn Is that the gist of it? Should perhaps pathfinding and other game logic be done client side instead of on the server, if so why? Is there anything else I'm missing? I hope someone can break down the concept, so I understand it better.

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• Preview Chitika Premium Ads On Your Website Quickly

  - by Gopinath

  Google AdSense is an excellent option for publishers like us to monetize traffic. As Google AdSense allow only 3 ad units per page, we have good amount of space left empty on the blog. Why not we use this empty space to earn some revenue(make sure that you are not annoying your visitors with too many ads)? On Tech Dreams today we started experimenting with Chitika Premium Ads to displays advertisements for visitors landing on us through search engines. Chitika Premium Ads are displayed only to US visitors who finds our pages through search engines. Visitors from outside USA does not see these ads anywhere on our site. We being in India, how to preview the Chitika ads on our site? To preview Chitika ads add #chitikatest at the end of the url. For example to preview the ads on Tech Dreams I use the url http://techdreams.org/#chitikatest The above url displays default list of ads Chitika displays. But if you want to see preview of ads for a specific keyword you can append it at the end of the url. Here is another example http://www.techdreams.org/#chitikatest=ipad   Do You Know What The Word “Chitika” Means? What does Chitika mean? When Chitika co-founders, Venkat Kolluri and Alden DoRosario left Lycos in 2003 to start their own company, they sought a name that would suggest the speed with which its customers would be able to put up ads on their Web sites. Chitika, which means “snap of the fingers” in Telugu (a South Indian language), captured this sentiment and Chitika Inc. was born (via) This article titled,Preview Chitika Premium Ads On Your Website Quickly, was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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• Octree implementation for fustrum culling

  - by Manvis

  I'm learning modern (=3.1) OpenGL by coding a 3D turn based strategy game, using C++. The maps are composed of 100x90 3D hexagon tiles that range from 50 to 600 tris (20 different types) + any player units on those tiles. My current rendering technique involves sorting meshes by shaders they use (minimizing state changes) and then calling glDrawElementsInstanced() for drawing. Still get solid 16.6 ms/frame on my GTX 560Ti machine but the game struggles (45.45 ms/frame) on an old 8600GT card. I'm certain that using an octree and fustrum culling will help me here, but I have a few questions before I start implementing it: Is it OK for an octree node to have multiple meshes in it (e.g. can a soldier and the hex tile he's standing on end up in the same octree node)? How is one supposed to treat changes in object postion (e.g. several units are moving 3 hexes down)? I can't seem to find good a explanation on how to do it. As I've noticed, soting meshes by shaders is a really good way to save GPU. If I put node contents into, let's say, std::list and sort it before rendering, do you think I would gain any performance, or would it just create overhead on CPU's end? I know that this sounds like early optimization and implementing + testing would be the best way to find out, but perhaps someone knows from experience?

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• How Do I Search For Struct Items In A Vector? [migrated]

  - by Vladimir Marenus

  I'm attempting to create an inventory system using a vector implementation, but I seem to be having some troubles. I'm running into issues using a struct I made. NOTE: This isn't actually in a game code, this is a separate Solution I am using to test my knowledge of vectors and structs! struct aItem { string itemName; int damage; }; int main() { aItem healingPotion; healingPotion.itemName = "Healing Potion"; healingPotion.damage= 6; aItem fireballPotion; fireballPotion.itemName = "Potion of Fiery Balls"; fireballPotion.damage = -2; vector<aItem> inventory; inventory.push_back(healingPotion); inventory.push_back(healingPotion); inventory.push_back(healingPotion); inventory.push_back(fireballPotion); if(find(inventory.begin(), inventory.end(), fireballPotion) != inventory.end()) { cout << "Found"; } system("PAUSE"); return 0; } The preceeding code gives me the following error: 1c:\program files (x86)\microsoft visual studio 11.0\vc\include\xutility(3186): error C2678: binary '==' : no operator found which takes a left-hand operand of type 'aItem' (or there is no acceptable conversion) There is more to the error, if you need it please let me know. I bet it's something small and silly, but I've been thumping at it for over two hours. Thanks in advance!

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• Drawing lines in 3D space

  - by DeadMG

  When attempting to draw a line in 3D space with D3DPT_LINELIST, then Direct3D gives me an error about an invalid vertex declaration, saying that it cannot be converted to an FVF. I am using the same vertex declaration and shader/stream setup as for my D3DPT_TRIANGLELIST rendering which works absolutely correctly. How can I use D3DPT_LINELIST to render some lines in 3D space? Edit: Oopsie, forgot my codeses. Here's my raw Draw call. D3DCALL(device->SetStreamSource(1, PerBoneBuffer.get(), 0, sizeof(PerInstanceData))); D3DCALL(device->SetStreamSourceFreq(1, D3DSTREAMSOURCE_INSTANCEDATA | 1)); D3DCALL(device->SetStreamSource(0, LineVerts, 0, sizeof(D3DXVECTOR3))); D3DCALL(device->SetStreamSourceFreq(0, D3DSTREAMSOURCE_INDEXEDDATA | lines.size())); D3DCALL(device->SetIndices(LineIndices)); PerInstanceData* data; std::vector<Wide::Render::Line*> lines_vec(lines.begin(), lines.end()); D3DCALL(PerBoneBuffer->Lock(0, lines.size() * sizeof(PerInstanceData), reinterpret_cast<void**>(&data), D3DLOCK_DISCARD)); std::for_each(lines.begin(), lines.end(), [&](Wide::Render::Line* ptr) { data->Color = D3DXColor(ptr->Colour); D3DXMATRIXA16 Translate, Scale, Rotate; D3DXMatrixTranslation(&Translate, ptr->Start.x, ptr->Start.y, ptr->Start.z); D3DXMatrixScaling(&Scale, ptr->Scale, 1, 1); D3DXMatrixRotationQuaternion(&Rotate, &D3DQuaternion(ptr->Rotation)); data->World = Scale * Rotate * Translate; }); D3DCALL(PerBoneBuffer->Unlock()); D3DCALL(device->DrawIndexedPrimitive(D3DPRIMITIVETYPE::D3DPT_LINELIST, 0, 0, 2, 0, 1)); Here's my vertex declaration: D3DVERTEXELEMENT9 BasicMeshVertices[] = { {0, 0, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_POSITION, 0}, {1, 0, D3DDECLTYPE_FLOAT4, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_TEXCOORD, 0}, {1, 16, D3DDECLTYPE_FLOAT4, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_TEXCOORD, 1}, {1, 32, D3DDECLTYPE_FLOAT4, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_TEXCOORD, 2}, {1, 48, D3DDECLTYPE_FLOAT4, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_TEXCOORD, 3}, {1, 64, D3DDECLTYPE_FLOAT4, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_COLOR, 0}, D3DDECL_END() }; The LineIndices are just 0, 1 and the LineVerts are just {0,0,0} and {1,0,0}, to represent a unit 3D line along the X axis.

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• NoVa Code Camp 2010.1 &ndash; Don&rsquo;t Miss It!

  - by John Blumenauer

  Tomorrow, June 12th will be the NoVa Code Camp 2010.1 held at the Microsoft Technical Center in Reston, VA.  What’s in store?  Lots of great topics by some truly knowledgeable speakers from the mid-Atlantic region.  This event will have four talks alone on Azure, plus sessions ASP.NET MVC2, SharePoint, WP7, Silverlight, MEF, WCF and some great presentations centered around best practices and design. The schedule can be found at:  http://novacodecamp.org/RecentCodeCamps/NovaCodeCamp201001/Schedule/tabid/202/Default.aspx The session descriptions and speaker list is at:  http://novacodecamp.org/RecentCodeCamps/NovaCodeCamp201001/Sessions/tabid/197/Default.aspx We’re also fortunate this year to have several excellent sponsors.  The sponsor list can be found at:  http://novacodecamp.org/RecentCodeCamps/NovaCodeCamp201001/Sponsors/tabid/198/Default.aspx.  As a result of the excellent sponsors, attendees will be enjoying nice food throughout the day and the end of day raffle will have some great surprises regarding swag! I’ll be presenting MEF with an introduction and then how it can be used to extend Silverlight applications.  If you’re new to MEF and/or Silverlight, don’t worry.  I’ll be easing into the concepts so everyone will leave an understanding of MEF by the end of the session.   Don’t miss NoVa Code Camp 2010.1.  See YOU there!

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• "Accumulate" buffer results in XNA4?

  - by Utkarsh Sinha

  I'm trying to simulate a "heightmap" buffer in XNA4.0 but the results don't look correct. Here's what I'm hoping to achieve: http://www.youtube.com/watch?feature=player_detailpage&v=-Q6ISVaM5Ww#t=517s (8:38). From what I understand, here are the steps to reach there: Pass height buffer + current entity's heightmap Generate a stencil and update the height buffer Render sprite+stencil For now, I'm just trying to get the height buffer thing to work. So here's the problem. Inside the draw loop, I do the following: Create a new render target & set it Draw the heightmap with a sprite batch(no shaders) graphicsDevice.SetRenderTarget(null) Draw the rendertarget with SpriteBatch I expected to see all entities' heightmaps. But only the last entity's heightmap is visible. Any hints on what I'm doing wrong? Here's the code inside the draw loop: RenderTarget2D tempDepthStencil = new RenderTarget2D(graphicsDevice, graphicsDevice.Viewport.Width, graphicsDevice.Viewport.Height, false, graphicsDevice.DisplayMode.Format, DepthFormat.None); graphicsDevice.SetRenderTarget(tempDepthStencil); // Gather depth information SpriteBatch depthStencilSpriteBatch = new SpriteBatch(graphicsDevice); depthStencilSpriteBatch.Begin(SpriteSortMode.Immediate, BlendState.AlphaBlend, SamplerState.LinearClamp, DepthStencilState.None, RasterizerState.CullCounterClockwise); depthStencilSpriteBatch.Draw(texHeightmap, pos, null, Color.White, 0, Vector2.Zero, 1, spriteEffects, 1); depthStencilSpriteBatch.End(); graphicsDevice.SetRenderTarget(null); SpriteBatch b1 = new SpriteBatch(graphicsDevice); b1.Begin(SpriteSortMode.Immediate, BlendState.AlphaBlend, null, null, null, null); b1.Draw((Texture2D)tempDepthStencil, Vector2.Zero, null, Color.White, 0, Vector2.Zero, 1, spriteEffects, 1); b1.End();

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• Formatting: Group Multiline Alignment - Added

  - by Petr

  One week ago I have added two new properties for formating PHP code into NetBeans 7.1. In Alignment category there are new properties for Group Multiline Alignment - Assignment and Array Initializer.  The Assignment property influence position of the char '=' in a group of lines with assignments.  Let see the pictures below.  On the left site -  Assignment property is off and on the right site the property is on. As you can see, when the property is set on, then the assignment char '=' is placed after the longest identifier in a group. The group is defined as a number of lines that contains the same type of assignments. End of a group can be empty line, line where is only a comment, different expression, end of a block. This formatting options works for variable assignment, field initialization and constants.  The second new property is for Array Initializer.   Both properties are switched off by default. If you will play with it, please file any problem into our Bugzilla.  

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• ArchBeat Link-o-Rama for 2012-06-15

  - by Bob Rhubart

  URGENT BULLETIN: Disable JRE Auto-Update for All E-Business Suite End-Users All desktop administrators must IMMEDIATELY disable the Java Runtime Environment (JRE) Auto-Update option for all Windows end-user desktops connecting to Oracle E-Business Suite Release 11i, 12.0, and 12.1. WebLogic JMS / AQ bridge with JBoss AS 7 | Edwin Biemond Oracle ACE Edwin Biemond explains "how you can retrieve JMS messages from JBoss with the help of a WebLogic Foreign Server and how to push messages to JBoss AS with the help of a WebLogic JMS Bridge." The Healthy Tension That Mobility Creates | Hernan Capdevila "Mobile device management in the cloud makes good sense," says Hernan Capdevila. "I don't think IT departments should be hosting device management and managing that complexity. It should be a cloud service." OPN: Fusion Middleware Summer Camps in July in Lisbon and Munich For specialized Oracle Partners. Participation is limited to two people per company at each bootcamp. Registration is first come first serve. Take note of the skill requirements and, prerequisites. Podcast: Cows in the Cloud and the importance of standards In part two of a four-part program Cloud experts Jim Baty, Mark Nelson, William Vambenepe, and Ajay Srivastava explain cows in the cloud and talk about the importance of standards. Community members talk about the challenges and opportunities mobile computing presents for IT architects. Apple has sold 55 million iPads since 2010. Gartner expects a 98% increase in tablet sales in 2012, to 118 million. Nielsen reports that smartphones now account for nearly half of all mobile phones in the U.S., a 38% increase over 2011. And the mobile juggernaut is just getting started. Thought for the Day "Why are video games so much better designed than office software? Because people who design video games love to play video games. People who design office software look forward to doing something else on the weekend." — Ted Nelson Source: SoftwareQuotes.com

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• .NET development on Macs

  - by Jeff

  I posted the “exciting” conclusion of my laptop trade-ins and issues on my personal blog. The links, in chronological order, are posted below. While those posts have all of the details about performance and software used, I wanted to comment on why I like using Macs in the first place. It started in 2006 when Apple released the first Intel-based Mac. As someone with a professional video past, I had been using Macs on and off since college (1995 graduate), so I was never terribly religious about any particular platform. I’m still not, but until recently, it was staggering how crappy PC’s were. They were all plastic, disposable, commodity crap. I could never justify buying a PowerBook because I was a Microsoft stack guy. When Apple went Intel, they removed that barrier. They also didn’t screw around with selling to the low end (though the plastic MacBooks bordered on that), so even the base machines were pretty well equipped. Every Mac I’ve had, I’ve used for three years. Other than that first one, I’ve also sold each one, for quite a bit of money. Things have changed quite a bit, mostly within the last year. I’m actually relieved, because Apple needs competition at the high end. Other manufacturers are finally understanding the importance of industrial design. For me, I’ll stick with Macs for now, because I’m invested in OS X apps like Aperture and the Mac versions of Adobe products. As a Microsoft developer, it doesn’t even matter though… with Parallels, I Cmd-Tab and I’m in Windows. So after three and a half years with a wonderful 17” MBP and upgraded SSD, it was time to get something lighter and smaller (traveling light is critical with a toddler), and I eventually ended up with a 13” MacBook Air, with the i7 and 8 gig upgrades, and I love it. At home I “dock” it to a Thunderbolt Display. A new laptop .NET development on a Retina MacBook Pro with Windows 8 Returning my MacBook Pro with Retina display .NET development on a MacBook Air with Windows 8

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• Visual Studio Continued Excitement

  - by Daniel Moth

  As you know Visual Studio 2012 RTM’d and then became available in August (Soma’s blog posts told you that here and here), and the VS2012 launch was earlier this month (Soma also told you that here). Every time a release of Visual Studio takes place I am very excited, since this has been my development tool of choice for almost my entire career (from many years before I joined Microsoft). I am doubly excited with this release since it is the second version of Visual Studio that I have worked on and contributed major features to, now that I’ve been in the developer division (DevDiv) for over 4 years. Additionally, I am very excited about the new era that VS2012 starts with VSUpdate for continued customer value: instead of waiting for the next major version of VS to get new features, there is new infrastructure to enable friction-free updates. The first update will ship before the end of this year, and you can read more about it at Brian’s blog post. I also noticed that a CTP of the first quarterly update is available to download here. In the last two months, the VS2012 family of products we all worked on in DevDiv shipped, coinciding with the end of the Microsoft financial/review year, and naturally followed by a couple of organizational changes (e.g. see Jason’s blog post)… On a personal level, this meant that I was very lucky to have an opportunity present itself to me that I simply could not turn down, so I grabbed it! I’ll still be working on Visual Studio, but not in the Parallel Computing part of the C++ team; instead I will be PM-leading the VS Diagnostics team… Stay tuned for details of what is coming in that space, in the VS updates and in the next major VS release, as I am able to share them… Comments about this post by Daniel Moth welcome at the original blog.

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• Would Using a PHP Framework Be Beneficial in My Context?

  - by Fractal

  I've just started work at a small start-up company who mainly uses PHP to develop their front-end apps. I had no prior PHP experience before joining, and this has led to my apps becoming large pieces of spaghetti code. I essentially started by adding code to implement an initial feature, and then continued to hack in more code to implement further features – without much thought for the overall design. The apps themselves output XML to render on small mobile devices. I recently started looking into frameworks that I could use. I reckon an advantage would be that they seem to force developers to modularise their programs using good-practice design patterns. This seems great for someone in my position. The extra functions they provide, for example: interfacing with databases in such a way as to make SQL injection impossible, would be very useful too. The downside I can see is that there will be a lot of overhead for me in terms of the time taken to learn the framework itself (while still getting to grips with PHP itself). I'm also worried that it will be overkill for the scale of the apps we develop. They tend to be programs that interface with a fairly simple back-end DB, and will generate about 5 different XML screens. Probably around 1 or 2 thousand lines of code. The time it takes just to configure the frameworks may not be worth it. The final problem I can see is that developers in the company – who have to go over my code, and who do not know the PHP framework I may use – will have a much harder time understanding it. Given those pros and cons, I'm still not sure on what the best course of action will be; so any advice will be greatly appreciated.

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