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  • Please recommend a patterns book for iOS development

    - by Brett Ryan
    I've read several books on iOS development and Objective-C, however what a lot of them teach is how to work with interfaces and all contain the model inside the view controller, i.e. a UITableViewController based view will simply have an NSArray as it's model. I'm interested in what the best practices are for designing the structure of an application. Specifically I'm interested in best practices for the following: How to separate a model from the view controller. I think I know how to do this by simply replacing the NSArray style example with a specific model object, however what I do not know how to do is alert the view when the model changes. For example in .NET I would solve this by conforming to INotifyPropertyChanged and databinding, and similarly with Java I would use PropertyChangeListener. How to create a service model for my domain objects. For example I want to learn the best way to create a service for a hypothetical Widget object to manage an internal DB and also services for communicating with remote endpoints. I need to learn the best ways to do this in a way that interface components can subscribe to events such as widgetUpdated. These services should be singleton classes and some how dependency injected into model/controller objects. Books I've read so far are: Programming in Objective-C (4th Edition) Beginning iOS 5 Development: Exploring the iOS SDK The iOS 5 Developer's Cookbook: Expanded Electronic Edition: Essentials and Advanced Recipes for iOS Programmers Learn Objective-C on the Mac: For OS X and iOS I've also purchased the following updated books but not yet read them. The Core iOS 6 Developer's Cookbook (4th edition Programming in Objective-C (5th Edition) I come from a Java and C# background with 15 years experience, I understand that many of the ways I would do things in these languages may not fit to the ObjC way of developing applications. Any guidance on the topic is very much appreciated.

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  • The Splendiferous Array of Culinary Tools [Infographic]

    - by ETC
    If your geeking out extends from the workbench to the kitchen counter, you’ll love this swanky infographic detailing the families of utensils in your kitchen drawers and cupboards. The poster showcases everything from scissors to strainers in a retro-style poster. If you can find a culinary tool in your kitchen that isn’t on the chart then you’re obviously a culinary wizard of the highest order. You can hit up the link below to check out the poster in full-size and downloadable glory or head over to the design company that created it here (and pre-order a printed copy for your kitchen). A Complete Guide to Your Kitchen Tools [Fast Co. Design via Design Sponge] Latest Features How-To Geek ETC How to Enable User-Specific Wireless Networks in Windows 7 How to Use Google Chrome as Your Default PDF Reader (the Easy Way) How To Remove People and Objects From Photographs In Photoshop Ask How-To Geek: How Can I Monitor My Bandwidth Usage? Internet Explorer 9 RC Now Available: Here’s the Most Interesting New Stuff Here’s a Super Simple Trick to Defeating Fake Anti-Virus Malware The Splendiferous Array of Culinary Tools [Infographic] Add a Real-Time Earth Wallpaper App to Ubuntu with xplanetFX The Citroen GT – An Awesome Video Game Car Brought to Life [Video] Final Man vs. Machine Round of Jeopardy Unfolds; Watson Dominates Give Chromium-Based Browser Desktop Notifications a Native System Look in Ubuntu Chrome Time Track Is a Simple Task Time Tracker

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  • Traffic estimation for a multiplayer flash game

    - by Steve Addington
    hey, i want to know if my rough traffic estimations are right, it would be for a pretty simple realtime flashgame in the style of haxball (but not as a soccer game) heres a video of it http://www.youtube.com/watch?v=z_xBdFg1RcI So here comes my estimation, i dont know if they are realistic! i hope someone can help me. consider the packet attached as a typical one sent every 200ms, its 148bytes + 64 bytes of header will make around a 200bytes packet. The server will receive 200bytes x 6 players x 5 times a sec=6000bytes/s=5.85Kbytes/s=46.9kbit/s plus he has to send all back to the players, so at this point are 94Kbit/s.The server received all the information, perform the definitive calculation and send the new position to all players, in a bigger packet of around 900bytes that have to be delivered to the others 6, which makes 900bytes x 6 players x 5 times a sec=27000bytes/s=26Kbytes/s=210kbit/s. overall that would be 26kbyte per second. thats like 130mb traffic per hour for a 6player room. but somehow i think the numbers are too high? that would be really much traffic for such a simple game. did i calculate something wrong?

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  • Setting up shared connection

    - by Calvin Froedge
    I have a network that is connected to the internet via a switch connected to a router. I have it setup like this so I can work on the new network without causing problems on the old. Anyway, I'm trying to enable internet connection sharing. Internet comes to server like this: Modem - Router - Switch - Ubuntu 11.10 (Eth0) I want to share the connection through Eth1 (Eth1 - Managed Switch - Clients). Here is my config for /etc/network/interfaces: I have a DHCP server running on Eth1. Here is my config: ddns-update-style none; option domain-name "myserver.local"; option domain-name-servers 192.168.1.2, 8.8.8.8; default-lease-time 600; max-lease-time 7200; authoritative; subnet 192.168.1.0 netmask 255.255.255.0 { interface eth1; range 192.168.1.3 192.168.1.254; option routers 192.168.1.1; option subnet-mask 255.255.255.0; option broadcast-address 192.168.1.255; } Here is /etc/network/interfaces: # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet dhcp #Used for internal network auto eth1 iface eth1 inet static address 192.168.1.2 netmask 255.255.255.0 broadcast 192.168.1.255 network 192.168.1.0 Here is /etc/hosts: 127.0.0.1 localhost 127.0.1.1 myserver.isp.com server 192.168.1.2 server.myserver.local server myserver.local In /etc/sysctl.conf, I've set the following: net.ipv4.ip_forward=1 Finally, in /etc/rc.local, I've set the following: /sbin/iptables -P FORWARD ACCEPT /sbin/iptables --table nat -A POSTROUTING -o eth1 -j MASQUERADE When I ping 8.8.8.8 (google's DNS) from a client that is authenticated with my DHCP server (they have been assigned a local ip, like 192.168.1.10), I get a timeout. How can I debug this further to figure out where my problem is?

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  • C# XNA: Effecient mesh building algorithm for voxel based terrain ("top" outside layer only, non-destructible)

    - by Tim Hatch
    To put this bluntly, for non-destructible/non-constructible voxel style terrain, are generated meshes handled much better than instancing? Is there another method to achieve millions of visible quad faces per scene with ease? If generated meshes per chunk is the way to go, what kind of algorithm might I want to use based on only EVER needing the outer layer rendered? I'm using 3D Perlin Noise for terrain generation (for overhangs/caves/etc). The layout is fantastic, but even for around 20k visible faces, it's quite slow using instancing (whether it's one big draw call or multiple smaller chunks). I've simplified it to the point of removing non-visible cubes and only having the top faces of my cube-like terrain be rendered, but with 20k quad instances, it's still pretty sluggish (30fps on my machine). My goal is for the world to be made using quite small cubes. Where multiple games (IE: Minecraft) have the player 1x1 cube in width/length and 2 high, I'm shooting for 6x6 width/length and 9 high. With a lot of advantages as far as gameplay goes, it also means I could quite easily have a single scene with millions of truly visible quads. So, I have been trying to look into changing my method from instancing to mesh generation on a chunk by chunk basis. Do video cards handle this type of processing better than separate quads/cubes through instancing? What kind of existing algorithms should I be looking into? I've seen references to marching cubes a few times now, but I haven't spent much time investigating it since I don't know if it's the better route for my situation or not. I'm also starting to doubt my need of using 3D Perlin noise for terrain generation since I won't want the kind of depth it would seem best at. I just like the idea of overhangs and occasional cave-like structures, but could find no better 'surface only' algorithms to cover that. If anyone has any better suggestions there, feel free to throw them at me too. Thanks, Mythics

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  • Skinning with DotNetNuke 5 Super Stylesheets Layouts - 12 Videos

    In this tutorial we demonstrate how to use Super Stylesheets in DotNetNuke for quickly and easily designing the layout of your DotNetNuke skin. Super Stylesheets are ideal for both beginner and experienced skin designers, the advantage of Super Stylesheets is that you can easily create a skin layout which works in all browsers without the need to learn complex CSS techniques. We show you how to build a skin from the very beginning using Super Stylesheets. The videos contain: Video 1 - Introduction to the Super Stylesheets DNN Layouts and Initial Setup Video 2 - Setting Up the Skin Layout Template Code Video 3 - Using the ThreeCol-Portal Layout Template for a Skin Video 4 - How to Add Tokens to the Skin Video 5 - Setting Background Colors for Content Panes and Creating CSS Containers Video 6 - How to Create a Footer Area and Reset the Default Styles Video 7 - How to Style the Text in the Content, Left and Right Panes Video 8 - SEO Skin Layouts for DotNetNuke Tokens Video 9 - Creating Several Skin Layouts Using the Layout Templates Video 10 - Further Layout Templates and MultiLayout Templates Video 11 - SEO Layout Template Skins Video 12 - Final SEO Positioning of the Skin Code Total Time Length: 97min 53secsDid you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • HTG Projects: Create a Pop Art Sci-Fi Poster with an Inkjet Printer

    - by Eric Z Goodnight
    Looking to decorate your house with some cool artwork? Grab some of your favorite Sci-Fi pics and some surprisingly simple tools, and create a Pop Art style poster in minutes. Through a simple process called “posterization,” you can reduce any graphic into a cool limited graphic with a similar look that Andy Warhol would have used when he created his famous Marylin Monroe image in the sixties. Pick a theme, grab some images, and get ready to decorate your home with a surprisingly easy and surprisingly cool poster any inkjet printer can produce Latest Features How-To Geek ETC HTG Projects: How to Create Your Own Custom Papercraft Toy How to Combine Rescue Disks to Create the Ultimate Windows Repair Disk What is Camera Raw, and Why Would a Professional Prefer it to JPG? The How-To Geek Guide to Audio Editing: The Basics How To Boot 10 Different Live CDs From 1 USB Flash Drive The 20 Best How-To Geek Linux Articles of 2010 Arctic Theme for Windows 7 Gives Your Desktop an Icy Touch Install LibreOffice via PPA and Receive Auto-Updates in Ubuntu Creative Portraits Peek Inside the Guts of Modern Electronics Scenic Winter Lane Wallpaper to Create a Relaxing Mood Access Your Web Apps Directly Using the Context Menu in Chrome The Deep – Awesome Use of Metal Objects as Deep Sea Creatures [Video]

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  • How to reload google dfp in ajax content? [migrated]

    - by cj333
    google dfp support ads in ajax content, but if I parse all the code in main page. it always show the same ads even turn page reload the ajax content. I read some article from http://productforums.google.com/forum/#!msg/dfp/7MxNjJk46DQ/4SAhMkh2RU4J. But my code not work. Any work code for suggestion? Thanks. Main page code: <script type='text/javascript'> $(document).ready(function(){ $('#next').live('click',function(){ var num = $(this).html(); $.ajax({ url: "album-slider.php", dataType: "html", type: 'POST', data: 'photo=' + num, success: function(data){ $("#slider").center(); googletag.cmd.push(function() { googletag.defineSlot('/1*******/ads-728-90', [728, 90], 'div-gpt-ad-1**********-'+ num).addService(googletag.pubads()); googletag.pubads().enableSingleRequest(); googletag.enableServices(); }); } }); }); }); </script> album-slider.php <!-- ads-728-90 --> <div id='div-gpt-ad-1**********-<?php echo $_GET['photo']; ?>' style='width:728px; height:90px;'> <script type='text/javascript'> googletag.cmd.push(function() { googletag.display('div-gpt-ad-1**********-<?php echo $_GET['photo']; ?>); }); </script>

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  • Slow dvd burning/reading speeds: how to solve

    - by wouter205
    I have a problem on which I'm struggling since i started using linux a year ago on my desktop, but still haven't found a solution for it. When reading or burning a dvd, the speeds are very slow (mostly under 1x) whilst I did selected the fastest speed in k3b. As such, it takes up to 40-50 minutes to burn one dvd! I read about enabling dma this post but it didn't help. This is the output for dmesg | grep -i dma > [ 0.000000] DMA 0x00000010 -> 0x00001000 [ 0.000000] DMA32 0x00001000 -> 0x00100000 [ 0.000000] DMA zone: 56 pages used for memmap [ 0.000000] DMA zone: 5 pages reserved [ 0.000000] DMA zone: 3921 pages, LIFO batch:0 [ 0.000000] DMA32 zone: 3527 pages used for memmap [ 0.000000] DMA32 zone: 254441 pages, LIFO batch:31 [ 0.000000] Policy zone: DMA32 [ 0.120356] pnp 00:01: [dma 4] [ 0.120968] pnp 00:05: [dma 2] [ 0.121421] pnp 00:06: [dma 3] [ 0.122617] pnp 00:0b: [dma 0 disabled] [ 0.852321] ata1: SATA max UDMA/133 cmd 0xec00 ctl 0xe480 bmdma 0xe000 irq 19 [ 0.852325] ata2: SATA max UDMA/133 cmd 0xe400 ctl 0xe080 bmdma 0xe008 irq 19 [ 0.861633] ata3: PATA max UDMA/133 cmd 0x1f0 ctl 0x3f6 bmdma 0xff00 irq 14 [ 0.861636] ata4: PATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0xff08 irq 15 [ 1.329411] ata1.00: ATA-7: Maxtor 6V250F0, VA111630, max UDMA/133 [ 1.345418] ata1.00: configured for UDMA/133 [ 1.820606] ata4.00: ATAPI: PHILIPS DVDR1660P1, P1.3, max UDMA/33 [ 1.820610] ata4.00: WARNING: ATAPI DMA disabled for reliability issues. It can be enabled [ 1.820613] ata4.00: WARNING: via pata_ali.atapi_dma modparam or corresponding sysfs node. [ 1.836681] ata4.00: configured for UDMA/33 [ 12.296600] parport0: PC-style at 0x378 (0x778), irq 7, dma 3 [PCSPP,TRISTATE,COMPAT,EPP,ECP,DMA] reading the third and fourth last line, I assume there is indeed a problem with dma? edit: this question still is not solved. Could anyone come up with an other solution please? Thanks

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  • Is Your Desktop Printer More Expensive Than Printing Services?

    - by Eric Z Goodnight
    While many users see desktop printers as the best way to print photos, compared to cheap printing services, they may be more expensive. In this simple How-To, learn how to compare the cost per print to commercial options. Readers may not think of desktop printers as “convenient,” however manufacturers are largely selling the convenience of being able to print at home. Many commercial printers may offer services that are cheaper, even at small quantities. See how a few free downloads, some internet research, and some math can save you money over the holidays Latest Features How-To Geek ETC The Complete List of iPad Tips, Tricks, and Tutorials The 50 Best Registry Hacks that Make Windows Better The How-To Geek Holiday Gift Guide (Geeky Stuff We Like) LCD? LED? Plasma? The How-To Geek Guide to HDTV Technology The How-To Geek Guide to Learning Photoshop, Part 8: Filters Improve Digital Photography by Calibrating Your Monitor The Brothers Mario – Epic Gangland Style Mario Brothers Movie Trailer [Video] Score Awesome Games on the Cheap with the Humble Indie Bundle Add a Colorful Christmas Theme to Your Windows 7 Desktop This Windows Hack Changes the Blue Screen of Death to Red Edit Images Quickly in Firefox with Pixlr Grabber Zoho Writer, Sheet, and Show Now Available in Chrome Web Store

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  • How do you prefer to handle image spriting in your web projects?

    - by Macy Abbey
    It seems like these days it is pretty much mandatory for web applications to sprite images if they want many images on their site AND a fast load time. (Spriting is the process of combining all images referenced from a style sheet into one/few image(s) with each reference containing a different background position.) I was wondering what method of implementing sprites you all prefer in your web applications, given that we are referring to non-dynamic images which are included/designed by the programming team and not images which are dynamically uploaded by a third party. 1. Add new images to an existing sprite by hand, create new css reference by hand. 2. Generate a sprite server-side from your css files which all reference single images set to be background images of an html element that is the same size of the image you are spriting once per build and update all css references programmatically. 3. Use a sprite generating program to generate a sprite image for you once per release and hand insert the new css class / image into your project. 4. Other methods? I prefer two as it requires very little hand-coding and image editing.

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  • Conditional attribute in XML - most concise solution?

    - by Lech Rzedzicki
    I am tasked with setting up conditional profiling - a method of tagging chunks of XML with an attribute, which will then be used as a conditional value to extract subset of that XML. Have a look at another definition/example: DITA profiling The XML is documents that are equivalent to printed books - i.e. documents that are often looked at by a human, even if indirectly. Therefore I am looking at a few requirements here: 1. keeping the value list brief - so it doesn't affect the readability of the document 2. be able to process with standard XML tools - a space-separated list inside an attribute is still probably fine, but I'd rather not use too much regexp for this 3. be obvious for various users, including 3rd parties, which content goes where 4. Be easy to maintain going forward Therefore one easy solution is: The problem with this: 1. As the list grows the value of the attribute can be a bit verbose 2. One needs to explicitly state every value even if it's a scenario of this vs everything else Therefore I am also looking at other approaches such as: 1. Using + and - modifiers, Apache htaccess style to override the default cascading of profiling - by default all content goes everywhere and if we want to exclude a bit we just say "-kindle". It does require parsing the whole tree, is not supported by editing tools and one needs to regexp the attribute value a bit deeper... 2. Using an intermediate file to define groups of values such as "other" or "non-print", example of this in DITA. It allows concise XML as well as different grouping and values for each document but it does create a certain level of abstraction which may make it a little less obvious for a 3rd party? Altogether, if you received such XML and were tasked to process it, which option you'd rather receive? If you have any experiences like that, even in an unrelated areas such a builds, don't hesitate to comment!

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  • Some Nice Icon Themes for Ubuntu [on hold]

    - by Saurav Kumar
    Last night I was searching for some good looking icon themes availabe for Ubuntu, but unfortunately could not find any post which gives a list of themes :(. From yesterday night I started searching icons themes and installing one by one. So thought to share some of them hope it will help others to get a bunch of them in one post. This is a Q&A-Style tutorial which will cover: Few good icon themes which are used in famous Ubuntu type distros and are available in repository. Look and feel through pictures. How to easily install? I also request others to share their experiences of some awesome icon themes. Once themes are installed Ubuntu-Tweak will help to change and manage them, since I could not find another way to change the themes in Unity. In xfce(Xubuntu) it can be changed from Appearance. Just believe me this post will not be vast. If I'll remove pictures then it will become small, but it will not look good. Please give suggestion to make it small.

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  • Pythonic Java. Yes, or no?

    - by OscarRyz
    Python use of indentation for code scope was initially very polemic and now is considered one of the best language features, because it helps ( almost by forcing us ) to have a consistent style. Well, I saw this post http://bit.ly/hmvTe9 where someone posted Java code with ; y {} aligned to the right margin to look more pythonic. It was very shocking at first ( as a matter of fact, if I ever see Java code like that in one of my projects I would be scared! ) However, there is something interesting here. Do we need all those braces and semicolons? How would the code would look like without them? class Person int age void greet( String a ) if( a == "" ) out.println("Hello stranger") else out.printf("Hello %s%n", a ) int age() return this.age class Main void main() new Person().greet("") Looks good to me, but in such small piece of code is hard to appreciate it, and since I don't Python too much, I can't tell by looking at existing libraries if it would be cleaner or not. So I took the first file of a library named: jAlarms I found and this is the result: ( WARNING : the following image may be disturbing for some people ) http://pxe.pastebin.com/eU1R4xsh Obviously it doesn't compile. This would be a compiling version using right aligned {} and ; http://pxe.pastebin.com/2uijtbYM Question What would happen if we could code like this? Would it make things clearer? Would it make it harder? I see braces, and semicolons as help to the parser and we, as humans have get used to them, but do we really need them? I guess is hard to tell specially since many mainstream languages do use braces, C, C++, Java, C# JavaScript Assuming the compiler wouldn't have problems without them, would you use them? Please comment.

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  • How to ...set up new Java environment - largely interfaces...

    - by Chris Kimpton
    Hi, Looks like I need to setup a new Java environment for some interfaces we need to build. Say our system is X and we need to interfaces to systems A, B and C. Then we will be writing interfaces X-A, X-B, X-C. Our system has a bus within it, so the publishing on our side will be to the bus and the interface processes will be taking from the bus and mapping to the destination system. Its for a vendor based system - so most of the core code we can't touch. Currently thinking we will have several processes, one per interface we need to do. The question is how to structure things. Several of the APIs we need to work with are Java based. We could go EJB, but prefer to keep it simple, one process per interface, so that we can restart them individually. Similarly SOA seems overkill, although I am probably mixing my thoughts about implementations of it compared to the concepts behind it... Currently thinking that something Spring based is the way to go. In true, "leverage a new tech if possible"-style, I am thinking maybe we can shoe horn some jruby into this, perhaps to make the APIs more readable, perhaps event-machine-like and to make the interface code more business-friendly, perhaps even storing the mapping code in the DB, as ruby snippets that get mixed in... but thats an aside... So, any comments/thoughts on the Spring approach - anything more up-to-date/relevant these days. EDIT: Looking a JRuby further, I am tempted to write it fully in JRuby... in which case do we need any frameworks at all, perhaps some gems to make things clearer... Thanks in advance, Chris

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  • Optimizing hash lookup & memory performance in Go

    - by Moishe
    As an exercise, I'm implementing HashLife in Go. In brief, HashLife works by memoizing nodes in a quadtree so that once a given node's value in the future has been calculated, it can just be looked up instead of being re-calculated. So eg. if you have a node at the 8x8 level, you remember it by its four children (each at the 2x2 level). So next time you see an 8x8 node, when you calculate the next generation, you first check if you've already seen a node with those same four children. This is extended up through all levels of the quadtree, which gives you some pretty amazing optimizations if eg. you're 10 levels above the leaves. Unsurprisingly, it looks like the perfmance crux of this is the lookup of nodes by child-node values. Currently I have a hashmap of {&upper_left_node,&upper_right_node,&lower_left_node,&lower_right_node} -> node So my lookup function is this: func FindNode(ul, ur, ll, lr *Node) *Node { var node *Node var ok bool nc := NodeChildren{ul, ur, ll, lr} node, ok = NodeMap[nc] if ok { return node } node = &Node{ul, ur, ll, lr, 0, ul.Level + 1, nil} NodeMap[nc] = node return node } What I'm trying to figure out is if the "nc := NodeChildren..." line causes a memory allocation each time the function is called. If it does, can I/should I move the declaration to the global scope and just modify the values each time this function is called? Or is there a more efficient way to do this? Any advice/feedback would be welcome. (even coding style nits; this is literally the first thing I've written in Go so I'd love any feedback)

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  • How to fix issue with my 3D first person camera?

    - by dxCUDA
    My camera moves and rotates, but relative to the worlds origin, instead of the players. I am having difficulty rotating the camera and then translating the camera in the direction relative to the camera facing angle. I have been able to translate the camera and rotate relative to the players origin, but not then rotate and translate in the direction relative to the cameras facing direction. My goal is to have a standard FPS-style camera. float yaw, pitch, roll; D3DXMATRIX rotationMatrix; D3DXVECTOR3 Direction; D3DXMATRIX matRotAxis,matRotZ; D3DXVECTOR3 RotAxis; // Set the yaw (Y axis), pitch (X axis), and roll (Z axis) rotations in radians. pitch = m_rotationX * 0.0174532925f; yaw = m_rotationY * 0.0174532925f; roll = m_rotationZ * 0.0174532925f; up = D3DXVECTOR3(0.0f, 1.0f, 0.0f);//Create the up vector //Build eye ,lookat and rotation vectors from player input data eye = D3DXVECTOR3(m_fCameraX, m_fCameraY, m_fCameraZ); lookat = D3DXVECTOR3(m_fLookatX, m_fLookatY, m_fLookatZ); rotation = D3DXVECTOR3(m_rotationX, m_rotationY, m_rotationZ); D3DXVECTOR3 camera[3] = {eye,//Eye lookat,//LookAt up };//Up RotAxis.x = pitch; RotAxis.y = yaw; RotAxis.z = roll; D3DXVec3Normalize(&Direction, &(camera[1] - camera[0]));//Direction vector D3DXVec3Cross(&RotAxis, &Direction, &camera[2]);//Strafe vector D3DXVec3Normalize(&RotAxis, &RotAxis); // Create the rotation matrix from the yaw, pitch, and roll values. D3DXMatrixRotationYawPitchRoll(&matRotAxis, pitch,yaw, roll); //rotate direction D3DXVec3TransformCoord(&Direction,&Direction,&matRotAxis); //Translate up vector D3DXVec3TransformCoord(&camera[2], &camera[2], &matRotAxis); //Translate in the direction of player rotation D3DXVec3TransformCoord(&camera[0], &camera[0], &matRotAxis); camera[1] = Direction + camera[0];//Avoid gimble locking D3DXMatrixLookAtLH(&in_viewMatrix, &camera[0], &camera[1], &camera[2]);

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  • Automated Error Reporting in .NET Reflector - harnessing the most powerful test rig in existence

    - by Alex.Davies
    I know a testing system that will find more bugs than all the unit testing, integration testing, and QA you could possibly do. And the chances are you're not using it. It's called your users. It's a cliché that you should test so that you find your bugs rather than your users. Of course you should. But it's also a cliché that no software is ever shipped bug-free. Lost cause? No, opportunity! I think .NET Reflector 6 is pretty stable. In fact I know exactly how stable it is, because some (surprisingly high) proportion of its users tell me every time it crashes: If they press "Send Error Report", I get: And then I fix it. As a rough guess, while a standard stack trace is enough to fix a problem 30% of the time, having all those local variables in the stack trace means I can fix it about 80% of the time. How does this all happen? Did it take ages to code this swish system? Nope, it was one checkbox in SmartAssembly. It adds some clever code to your assembly to capture local variables every time an exception is thrown, and to ask your user to report it to you, with a variety of other useful information. Of course not all bugs show up as exceptions. But if you get used to knowing that SmartAssembly will tell you when an exception happens, you begin to change your coding style. Now, as long as an exception gets thrown in any situation you don't expect, you'll fix it if it ever happens. You'll start throwing exceptions liberally, and stop having to think about whether tiny edge cases are possible, as long as they throw an exception if they happen.

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  • Touchpad hardware button disables keyboard too

    - by jjg
    I have an old but nice Samsung X50 running MM which has a key between the touchpad buttons which disables the touchpad. Very nice, no-one like to brush against the touchpad while typing. It seems to be a hardware feature -- a BIOS style window appears at the top left of the screen when you press it saying "touchpad off"; and when you press it again it says "touchpad on", and so it is, but now the keyboard has no effect in X, I can type nothing except to meta-ctl F1 to the console. After a reboot the problem persists; and the only way I have found to fix it is to blow away .gconf are replace it with a copy I made in happier times. Deleting/modifying .gconf/desktop/gnome/peripherals/touchpad/%gconf.xml does not fix the problem. There is no way to turn off the switch in BIOS without losing the touchpad. I would prise the thing out with a screwdriver if I could, but it's a work machine. This button is the bane of my life, hanging over me like a sword of Damocles.

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  • How to implement jquery and Mootools together ?

    - by Avi Kumar Manku
    I am developing a website in which I am implementing two slider for images gallery using one with jQuery and one with moottools. But there is problem in implementing these because when I use both together the jQuery slider doesn't works where mootools slider works. jQuery slider works in case where I remove mootools. What should I do to implement both sliders together? Any suggestions will be helpful. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Tresmode | Footwear &amp; Accessories</title> <script type="text/javascript" src="js/jquery-1.5.min.js"></script> <script src="js/jquery.easing.1.3.js" type="text/javascript"></script> <script src="js/jquery.slideviewer.1.2.js" type="text/javascript"></script> <!-- Syntax hl --> <script src="js/jquery.syntax.min.js" type="text/javascript" charset="utf-8"></script> <script type="text/javascript"> $(window).bind("load", function() { $("div#mygaltop").slideView({toolTip: true, ttOpacity: 0.5}); $("div#mygalone").slideView(); //if leaved blank performs the default kind of animation (easeInOutExpo, 750) $("div#mygaltwo").slideView({ easeFunc: "easeInOutBounce", easeTime: 2200, toolTip: true }); $("div#mygalthree").slideView({ easeFunc: "easeInOutSine", easeTime: 100, uiBefore: true, ttOpacity: 0.5, toolTip: true }); }); $(function(){ $.syntax({root: 'http://www.gcmingati.net/wordpress/wp-content/themes/giancarlo-mingati/js/jquery-syntax/'}); }); </script> <link href="css/style.css" rel="stylesheet" type="text/css" /> <link href="css/product.css" rel="stylesheet" type="text/css" /> <link href="css/scroll.css" rel="stylesheet" type="text/css" /> <!--[if lte IE 8]> <link href="css/ieonly.css" rel="stylesheet" type="text/css" /> <![endif]--> <script language="javascript" type="text/javascript" src="js/mootools-1.2-core.js"></script> <script language="javascript" type="text/javascript" src="js/mootools-1.2-more.js"></script> <script language="javascript" type="text/javascript" src="js/SlideItMoo.js"></script> <script language="javascript" type="text/javascript"> window.addEvent('domready', function(){ /* thumbnails example , links only */ new SlideItMoo({itemsVisible:5, // the number of thumbnails that are visible currentElement: 0, // the current element. starts from 0. If you want to start the display with a specific thumbnail, change this thumbsContainer: 'thumbs', elementScrolled: 'thumb_container', overallContainer: 'gallery_container'}); /* thumbnails example , div containers */ new SlideItMoo({itemsVisible:5, // the number of thumbnails that are visible currentElement: 0, // the current element. starts from 0. If you want to start the display with a specific thumbnail, change this thumbsContainer: 'thumbs2', elementScrolled: 'thumb_container2', overallContainer: 'gallery_container2'}); /* banner rotator example */ new SlideItMoo({itemsVisible:1, // the number of thumbnails that are visible showControls:0, // show the next-previous buttons autoSlide:2500, // insert interval in milliseconds currentElement: 0, // the current element. starts from 0. If you want to start the display with a specific thumbnail, change this transition: Fx.Transitions.Bounce.easeOut, thumbsContainer: 'banners', elementScrolled: 'banner_container', overallContainer: 'banners_container'}); }); </script> </head> <body> <div id="landing"> <!-- landing page menu --> <div id="landing_menu"> <ul> <li><a class="active" href="#">SPECIALS</a></li> <li><a href="#">SHOP MEN'S</a></li> <li class="none"><a class="none" href="#">SHOP WOMEN'S</a></li> </ul> </div> <!-- landing page menu --> <!-- loading container menu --> <div id="container_part"> <div id="big_image_slider"> <!-- <img src="images/briteloves.png" alt="Britelove" /> --> <div id="mygaltop" class="svw"> <ul> <li><img alt="Tresmode | Footwear &amp; Accessories" src="images/briteloves.png" /></li> <li><img alt="Tresmode | Footwear &amp; Accessories" src="images/1.jpg" /></li> <li><img alt="Tresmode | Footwear &amp; Accessories" src="images/2.jpg" /></li> <li><img alt="Tresmode | Footwear &amp; Accessories" src="images/3.jpg" /></li> <li><img alt="Tresmode | Footwear &amp; Accessories" src="images/4.jpg" /></li> <li><img alt="Tresmode | Footwear &amp; Accessories" src="images/5.jpg" /></li> <li><img alt="Tresmode | Footwear &amp; Accessories" src="images/6.jpg" /></li> <li><img alt="Tresmode | Footwear &amp; Accessories" src="images/7.jpg" /></li> <li><img alt="Tresmode | Footwear &amp; Accessories" src="images/8.jpg" /></li> <li><img alt="Tresmode | Footwear &amp; Accessories" src="images/9.jpg" /></li> <li><img alt="Tresmode | Footwear &amp; Accessories" src="images/10.jpg" /></li> <li><img alt="Tresmode | Footwear &amp; Accessories" src="images/11.jpg" /></li> <li><img alt="Tresmode | Footwear &amp; Accessories" src="images/12.jpg" /></li> </ul> </div> </div> <div class="new_style_banner"><img src="images/new_styles.png" alt="new style" /></div> <div class="new_style_banner"><img src="images/ford-super-models.png" alt="ford super models" /></div> </div> <!--- loading container menu --> <!-- footer scrool ---> <div id="footer_scroll"> <!--thumbnails slideshow begin--> <div id="gallery_container"> <div id="thumb_container"> <div id="thumbs"> <a href="gallery/full/DC080302018.jpg" rel="lightbox[galerie]" target="_blank"><img src="gallery/thumb/1.jpg"/></a> <a href="gallery/full/DC080302028.jpg" rel="lightbox[galerie]" target="_blank"><img src="gallery/thumb/2.jpg" /></a> <a href="gallery/full/DC080302030.jpg" rel="lightbox[galerie]" target="_blank"><img src="gallery/thumb/3.jpg"/></a> <a href="gallery/full/DC080302018.jpg" rel="lightbox[galerie]" target="_blank"><img src="gallery/thumb/4.jpg" /></a> <a href="gallery/full/DC080302028.jpg" rel="lightbox[galerie]" target="_blank"><img src="gallery/thumb/5.jpg" /></a> <a href="gallery/full/DC080302030.jpg" rel="lightbox[galerie]" target="_blank"><img src="gallery/thumb/6.jpg"/></a> <a href="gallery/full/DC080302018.jpg" rel="lightbox[galerie]" target="_blank"><img src="gallery/thumb/1.jpg"/></a> <a href="gallery/full/DC080302028.jpg" rel="lightbox[galerie]" target="_blank"><img src="gallery/thumb/2.jpg" /></a> <a href="gallery/full/DC080302030.jpg" rel="lightbox[galerie]" target="_blank"><img src="gallery/thumb/7.jpg"/></a> <a href="gallery/full/DC080302018.jpg" rel="lightbox[galerie]" target="_blank"><img src="gallery/thumb/8.jpg" /></a> <a href="gallery/full/DC080302028.jpg" rel="lightbox[galerie]" target="_blank"><img src="gallery/thumb/9.jpg" /></a> <a href="gallery/full/DC080302030.jpg" rel="lightbox[galerie]" target="_blank"><img src="gallery/thumb/10.jpg"/></a> </div> </div> </div> <!--thumbnails slideshow end--> </div> <!-- foooter scrooll --> </div> <script type="text/javascript"> var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); </script> <script type="text/javascript"> var pageTracker = _gat._getTracker("UA-2064812-2"); pageTracker._initData(); pageTracker._trackPageview(); </script> </body> </html>

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  • Improving the speed of writing code in C#

    - by Robert Harvey
    Laugh if you want, but I used to develop substantial line-of-business applications in VB6, long before the .NET framework came along. Why, when I was your age, we used to walk two miles in the snow, uphill. Both ways... Love it or hate it, VB6 had a REPL-like feel, and a very rapid development cycle. I would like to know how to come closer to that process in C#. In VB6, I could write a function, execute it, debug it and have it fully functional in a few minutes. I am told this is how the Lisp crowd works. It's a very rapid-fire style of programming. In C# I write a function, then I write a unit test for that function (which is OK, I understand the value of that), then I right-click, run test, wait for the project to compile (takes about 10 seconds right now, which would be an eternity for a REPL loop), and get an exception. Honestly, this feels more like my junior college days, when I used to feed punch cards into a hopper and wait for a printout (exaggerating only slightly for effect). Additionally, my tendency nowadays is to make everything public while I'm testing it. Unit testing with private accessors works fine, but you can't trace through the code (unless, of course, I'm doing something wrong) while you're using them. So what I'd like to know is, what adjustments have you made to your development process in C# to streamline it, and make it possible to write and verify your code very rapidly?

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  • Programmer friendly non-voxel art styles?

    - by Overv
    Like many other programmers I've always wanted to make a game, but simply lack the skills to do any production quality graphics. I am however sure that I want to do the models and textures myself, because I need a lot of different objects and I am sure I wouldn't be able to find good matching models on 3D sites. That means I'll have to pick an art style that is "simple", programmer friendly. An extreme example of this is of course Minecraft, but I don't want to go that basic. I'm absolutely against creating a voxel game. What kind of art styles are out there that are relatively simple, i.e. things made out of basic shapes and textures, but are still good enough to form a believable and detailed world? An example of what I mean is wind waker. The objects are formed of relatively simples shapes, but still provide enough detail to create a nice, living world. The environment my game is set in is a city environment. What I'm really asking for here are good examples of "simple" art styles applied in practice, so I can choose one that fits my skills.

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  • .NET access to the GPU for compute purposes

    - by Daniel Moth
    In the distant past I talked about GPGPU and Microsoft's then approach of DirectCompute. Since then of course we now have C++ AMP coming out with Visual Studio 11, so there is a mainstream easier way for developers to access the GPU for compute purposes, using C++. The question occasionally arises of how can a .NET developer access the GPU for compute purposes from their C# (or VB) code. The answer is by interoping from the managed code to a native DLL and in the native DLL use C++ AMP. As a long term .NET developer myself, I can tell you this is straightforward. Sure, there could have been a managed wrapper for C++ AMP, but honestly that is the reason we have interop – it doesn't make much sense to invest resources to solve a problem that is already solved (most developer customers would prefer investments in other areas of Visual Studio!). Besides, interoping from C# to C++ is much easier than interoping to some of the other older approaches of GPGPU programming ;-) To help you get started with the interop approach, Igor Ostrovsky has previously shared the "Hello World" version of interoping from C# to C++ AMP in his blog post: How to use C++ AMP from C# …we then were asked specifically about how to interop from C# to C++ AMP in a Metro style application on Windows 8, so Igor delivered again with this post: How to use C++ AMP from C# using WinRT Have fun! Comments about this post by Daniel Moth welcome at the original blog.

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  • Are You Using Facebook with an Encrypted Session Yet?

    - by The Geek
    If you’re geeky and keep up with all the tech news, you probably already know that Facebook added an SSL feature, but for everybody else: You can make your Facebook profile more secure by turning this option on, and here’s how to do it. All we’re going to do is head into the Facebook profile settings and then check a box that forces the use of SSL encryption whenever possible. Easy Latest Features How-To Geek ETC Here’s a Super Simple Trick to Defeating Fake Anti-Virus Malware How to Change the Default Application for Android Tasks Stop Believing TV’s Lies: The Real Truth About "Enhancing" Images The How-To Geek Valentine’s Day Gift Guide Inspire Geek Love with These Hilarious Geek Valentines RGB? CMYK? Alpha? What Are Image Channels and What Do They Mean? Project M Brings Classic Super Smash Bro Style Gameplay to the Wii Now Together and Complete – McBain: The Movie [Simpsons Video] Be Creative by Using Hex and RGB Codes for Crayola Crayon Colors on Your Next Web or Art Project [Geek Fun] Flash Updates; Finally Supports Full Screen Video on Multiple Monitors 22 Ways to Recycle an Altoids Mint Tin Make Your Desktop Go Native with the Tribal Arts Theme for Windows 7

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  • Give Chromium-Based Browser Desktop Notifications a Native System Look in Ubuntu

    - by Asian Angel
    Desktop notifications from Chromium-based browsers are an awesome feature, but they do not blend in well at all with the native system theming in Ubuntu. Now you can fix that small problem using the wonderful Chromify-OSD extension created by Marco Ceppi. Once you get the extension installed you can give it a quick test run using the link and information we have listed below. As you can see in the image above the new notification style looks absolutely wonderful. Chromify-OSD (Chrome Web Store) [via OMG! Ubuntu!] You can test the new look of the notifications for yourself using the following webpage. Keep in mind that the extension needs to be installed first before this will work though. Note: Enter the following image URL into the Icon Blank (http://www.rgraph.net/images/logo.png) or the URL for an appropriate image, otherwise the notification may not work properly during your test. Chromify Sample HTML5 Notification Test Page The wallpaper shown in the screenshot above can be downloaded here: anime sport [DesktopNexus] Latest Features How-To Geek ETC How to Enable User-Specific Wireless Networks in Windows 7 How to Use Google Chrome as Your Default PDF Reader (the Easy Way) How To Remove People and Objects From Photographs In Photoshop Ask How-To Geek: How Can I Monitor My Bandwidth Usage? Internet Explorer 9 RC Now Available: Here’s the Most Interesting New Stuff Here’s a Super Simple Trick to Defeating Fake Anti-Virus Malware The Citroen GT – An Awesome Video Game Car Brought to Life [Video] Final Man vs. Machine Round of Jeopardy Unfolds; Watson Dominates Give Chromium-Based Browser Desktop Notifications a Native System Look in Ubuntu Chrome Time Track Is a Simple Task Time Tracker Google Sky Map Turns Your Android Phone into a Digital Telescope Walking Through a Seaside Village Wallpaper

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