Search Results

Search found 41511 results on 1661 pages for 'via point'.

Page 342/1661 | < Previous Page | 338 339 340 341 342 343 344 345 346 347 348 349  | Next Page >

  • The Chemistry of Snowflakes [Video]

    - by Jason Fitzpatrick
    Snowflakes start out as tiny bits of dust high in the atmosphere and end up drifting down to us as intricate water crystals. Check out this video to see the process start to finish. Courtesy of the American Chemical Society and Bytesize Science, we’re treated to a well explained and illustrated journey from the beginning of the snowflake formation process until the end. [via Neatorama] How to Access Your Router If You Forget the Password Secure Yourself by Using Two-Step Verification on These 16 Web Services How to Fix a Stuck Pixel on an LCD Monitor

    Read the article

  • Ray Intersecting Plane Formula in C++/DirectX

    - by user4585
    I'm developing a picking system that will use rays that intersect volumes and I'm having trouble with ray intersection versus a plane. I was able to figure out spheres fairly easily, but planes are giving me trouble. I've tried to understand various sources and get hung up on some of the variables used within their explanations. Here is a snippet of my code: bool Picking() { D3DXVECTOR3 vec; D3DXVECTOR3 vRayDir; D3DXVECTOR3 vRayOrig; D3DXVECTOR3 vROO, vROD; // vect ray obj orig, vec ray obj dir D3DXMATRIX m; D3DXMATRIX mInverse; D3DXMATRIX worldMat; // Obtain project matrix D3DXMATRIX pMatProj = CDirectXRenderer::GetInstance()->Director()->Proj(); // Obtain mouse position D3DXVECTOR3 pos = CGUIManager::GetInstance()->GUIObjectList.front().pos; // Get window width & height float w = CDirectXRenderer::GetInstance()->GetWidth(); float h = CDirectXRenderer::GetInstance()->GetHeight(); // Transform vector from screen to 3D space vec.x = (((2.0f * pos.x) / w) - 1.0f) / pMatProj._11; vec.y = -(((2.0f * pos.y) / h) - 1.0f) / pMatProj._22; vec.z = 1.0f; // Create a view inverse matrix D3DXMatrixInverse(&m, NULL, &CDirectXRenderer::GetInstance()->Director()->View()); // Determine our ray's direction vRayDir.x = vec.x * m._11 + vec.y * m._21 + vec.z * m._31; vRayDir.y = vec.x * m._12 + vec.y * m._22 + vec.z * m._32; vRayDir.z = vec.x * m._13 + vec.y * m._23 + vec.z * m._33; // Determine our ray's origin vRayOrig.x = m._41; vRayOrig.y = m._42; vRayOrig.z = m._43; D3DXMatrixIdentity(&worldMat); //worldMat = aliveActors[0]->GetTrans(); D3DXMatrixInverse(&mInverse, NULL, &worldMat); D3DXVec3TransformCoord(&vROO, &vRayOrig, &mInverse); D3DXVec3TransformNormal(&vROD, &vRayDir, &mInverse); D3DXVec3Normalize(&vROD, &vROD); When using this code I'm able to detect a ray intersection via a sphere, but I have questions when determining an intersection via a plane. First off should I be using my vRayOrig & vRayDir variables for the plane intersection tests or should I be using the new vectors that are created for use in object space? When looking at a site like this for example: http://www.tar.hu/gamealgorithms/ch22lev1sec2.html I'm curious as to what D is in the equation AX + BY + CZ + D = 0 and how does it factor in to determining a plane intersection? Any help will be appreciated, thanks.

    Read the article

  • Javascript - is this a grey area for anyone else?

    - by Anonymous -
    I have a firm understanding of HTML, CSS, PHP, MySQL (and to some extent apache/linux) and find that one of the things missing from my 'web development knowledge base' is javascript - creating richer user interfaces. I'd like to learn Javascript before I look at any frameworks (I've used light javascript/jquery before, but that's besides the point). Can anyone recommend a firm book or online documentation from 'absolute beginner' to 'expert' for javascript? I seem to be finding too many 'display the time' and 'hello world' tutorials...

    Read the article

  • Schema Based Code Completion for NetBeans Platform Applications

    - by Geertjan
    Toni's recent blog entry provides, among several other interesting things, instructions for something I've been wanting to cover for a long time, which is schema based code completion: The above is a sample I created via Toni's tutorial, using the schema described here: http://www.w3schools.com/schema/schema_example.asp The support for the Navigator ain't bad either, especially considering I didn't do any coding at all to get all this: And here's where you can find the whole sample: http://java.net/projects/nb-api-samples/sources/api-samples/show/versions/7.2/misc/ShipOrder

    Read the article

  • Utiliser une ProgressDialog dans ses applications Android, par Axon de Tuto Mobile

    Axon_TutoMobile vous propose un article sur l'utilisation d' une ProgressDialog dans les applications Android Citation: Le but de ce tutorial est d'expliquer comment utiliser une ProgressDialog dans son application Android. Il peut être parfois utile d'afficher une barre de progression renseignant l'utilisateur sur l'avancement. Android fournit un moyen via la ProgressDialog pour les phases d'attente.

    Read the article

  • 52 Sci-Fi and Video-Game Weapons: Can You ID Them All?

    - by Jason Fitzpatrick
    Swords, blasters, shields, and more populate this visual roundup of sci-fi, comic book, video game, and pop culture weapons. Can you name them all? Hit up the link below for the full-resolution and closeup pictures. Famous Weapons [via Blastr] How To Use USB Drives With the Nexus 7 and Other Android Devices Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It

    Read the article

  • Getting paid through Ltd or Umbrella company?

    - by Guy
    I am working for a company as a web dev consultant at the moment, and they asked me whether I want to get payed through the Umbrella company or through my Ltd. Which is better for me and why? The @David Thornley made a good point in comments. Don't forget that we are talking about web developing here. I am not sure how is it in UK, but in the country I am from, you get taxed differently for the stuff you do.

    Read the article

  • Oracle University Partner Enablement-Update (Week 13)

    - by swalker
    Get ready for Fusion Applications Implementations Oracle University has scheduled the first implementation courses. To view see: Italy France The Netherlands: UK If you can’t travel to these countries, why don’t you try a Live Virtual Class? All courses can be booked via the websites. For more information, assistance in booking and scheduling requests contact your local Oracle University Service Desk. Bleiben Sie in Verbindung mit Oracle University: LinkedIn OracleMix Twitter Facebook Google+

    Read the article

  • How do I install Myunity on 12.10?

    - by Brenton Horne
    Basically as is the title how do you install Myunity on 12.10. I've tried adding the repository ppa:myunity/ppa and doing: sudo add-apt-repository ppa:myunity/ppa sudo apt-get update sudo apt-get install myunity At which point I got the error: W: Failed to fetch http://ppa.launchpad.net/myunity/ppa/ubuntu/dists/quantal/main/binary-i386/Packages 404 Not Found E: Some index files failed to download. They have been ignored, or old ones used instead.

    Read the article

  • How to move a website and domain name without experiencing downtime for emails or site?

    - by user4842
    Okay, I have a pretty complex problem, so I'll get right to it. I'm a designer who built a new website for my client. Their old site is hosted at GoDaddy, as well as their email. Problem is, the guy who built the original site decided to put the original domain name and hosting under HIS personal GoDaddy account. Well, that turned out to be a bad move for several reasons. Here's how it's all tied together. The original domain name, www.domainoriginal.com, was actually purchased at Network Solutions. The original web designer pointed the nameservers from Network Solutions to his GoDaddy account, where the email and hosting is setup. The new domain name, www.domainnew.com, was purchased under a new and separate GoDaddy account belonging to the company, and the new website was built under a 3rd party platform (Big Commerce). So, the www.domainnew.com is already pointed to the new website using A records at new GoDaddy account. All is fine there. However, they still need www.domainoriginal.com to point to the NEW website as well. (The old one can simply be deleted, it is NOT important). AND, they want to keep their old email addresses intact and working as well, but under the NEW GoDaddy account. Obviously, I have no DNS control at Network Solutions, and I have no idea what kind of control I have at GoDaddy under the old account because the web designer will not let me see inside his account. But, he and GoDaddy both tell me nothing can be done other than to repoint the nameservers to Network Solutions, and then repoint the A record to my new website, www.domainnew.com, and point the MX Records to GoDaddy. I'm told the downtime would be 24-48 hours if I do this. Ideally, we'd like to do a domain name transfer and get www.domainoriginal.com in the new GoDaddy account created by the company. But, I'm told this could take up to 7 days. Does this mean the site and email will be down for 7 days? And any emails sent during this time, would they be lost forever? If I do this, how long could I expect the site and email to go down? And, will the emails be permanently lost? I've gotten different answers from everybody at GoDaddy so I kind of don't trust them anymore... Any help would be greatly appreciated Thanks, Tyson

    Read the article

  • Drawing a texture at the end of a trace (crosshair?) UDK

    - by Dave Voyles
    I'm trying to draw a crosshair at the end of my trace. If my crosshair does not hit a pawn or static mesh (ex, just a skybox) then the crosshair stays locked on a certain point at that actor - I want to say its origin. Ex: Run across a pawn, then it turns yellow and stays on that pawn. If it runs across the skybox, then it stays at one point on the box. Weird? How can I get my crosshair to stay consistent? I've included two images for reference, to help illustrate. Note: The wrench is actually my crosshair. The "X" is just a debug crosshair. Ignore that. /// Image 1 /// /// Image 2 /// /*************************************************************************** * Draws the crosshair ***************************************************************************/ function bool CheckCrosshairOnFriendly() { local float CrosshairSize; local vector HitLocation, HitNormal, StartTrace, EndTrace, ScreenPos; local actor HitActor; local MyWeapon W; local Pawn MyPawnOwner; /** Sets the PawnOwner */ MyPawnOwner = Pawn(PlayerOwner.ViewTarget); /** Sets the Weapon */ W = MyWeapon(MyPawnOwner.Weapon); /** If we don't have an owner, then get out of the function */ if ( MyPawnOwner == None ) { return false; } /** If we have a weapon... */ if ( W != None) { /** Values for the trace */ StartTrace = W.InstantFireStartTrace(); EndTrace = StartTrace + W.MaxRange() * vector(PlayerOwner.Rotation); HitActor = MyPawnOwner.Trace(HitLocation, HitNormal, EndTrace, StartTrace, true, vect(0,0,0),, TRACEFLAG_Bullet); DrawDebugLine(StartTrace, EndTrace, 100,100,100,); /** Projection for the crosshair to convert 3d coords into 2d */ ScreenPos = Canvas.Project(HitLocation); /** If we haven't hit any actors... */ if ( Pawn(HitActor) == None ) { HitActor = (HitActor == None) ? None : Pawn(HitActor.Base); } } /** If our trace hits a pawn... */ if ((Pawn(HitActor) == None)) { /** Draws the crosshair for no one - Grey*/ CrosshairSize = 28 * (Canvas.ClipY / 768) * (Canvas.ClipX /1024); Canvas.SetDrawColor(100,100,128,255); Canvas.SetPos(ScreenPos.X - (CrosshairSize * 0.5f), ScreenPos.Y -(CrosshairSize * 0.5f)); Canvas.DrawTile(class'UTHUD'.default.AltHudTexture, CrosshairSize, CrosshairSize, 600, 262, 28, 27); return false; } /** Draws the crosshair for friendlies - Yellow */ CrosshairSize = 28 * (Canvas.ClipY / 768) * (Canvas.ClipX /1024); Canvas.SetDrawColor(255,255,128,255); Canvas.SetPos(ScreenPos.X - (CrosshairSize * 0.5f), ScreenPos.Y -(CrosshairSize * 0.5f)); Canvas.DrawTile(class'UTHUD'.default.AltHudTexture, CrosshairSize, CrosshairSize, 600, 262, 28, 27); return true; }

    Read the article

  • SEO-ing Your Website

    What is SEO? The abbreviation SEO stands for Search Engine Optimization. It is the process of improving the volume of traffic to a web site via search engines through relevant keywords. The more traffic a website gets, the higher his ranking will be in search engine results. This is essentially SEO promotion and it is used by many webmasters today.

    Read the article

  • Monitoring JSON requests sent/received from the browser?

    - by Uwe Keim
    Having a website that generates and receives JSON requests via AJAX, I failed to find a tool that shows me live the communication including the content of the JSON calls. I thought that the Google Chrome developer tools or the IE 9 developer tools do have such a feature, but again, I failed. Searching Google, I failed too. So my question is: Is there a client-side tool to monitor the content of JSON requests that a website sends to the server?

    Read the article

  • A Look at Exceptions in .NET Applications

    Memory dumps are a wonderful way of finding out what caused an exception in a managed .NET application, particularly if it is happening in a production application. It is when tracking exceptions in applications where you can't use Visual Studio that the techniques of using cdb and sos.dll come into their own. They may nor be skills that you need to use regularly, but at some point, they will be invaluable. Edward supplies sample memory dumps and gives you a simple introduction.

    Read the article

  • Page displaying sections using opacity in CSS3 but without navigating or scrolling down [closed]

    - by Senthil Kumaran
    Here is my app - http://www.shalgreetings.com/ I am trying to override the scroll bar going down to a imagesection in CSS, so that whole app is visible with logo, header and other controls all the times when people navigate through different #sections. I am not sure where in the CSS, I am making the mistake as clicking on #sections traverses the page. Here is this app's original inspiration code, which has got this right. Anyone can point me where the problem seems to be in the above app?

    Read the article

  • Increase Your Alexa Rank in 5 Tips

    Alexa Rank is normally used for measuring the advertising cost in a blog via ad networks like Google AdSense, although Alexa Rank is not the perfect way to know the value of websites. Improving Alexa Rank means creating quality contents frequently.

    Read the article

  • EPOS Systems and Its Benefits

    An Electronic Point Of Sale (EPOS) system is used for the accurate taking and recording of payment for goods and services in a shop, restaurant, hotel, or any other business that serves customers. E... [Author: Alan Wisdom - Computers and Internet - April 05, 2010]

    Read the article

  • .Net Micro

    - by MarkPearl
    A while back I purchased a RFID scanner that could be connected to a PC and programmed via VS. It was a fun purchase an though the import duties nailed me, I was glad to get the little gadget. Last night while listening to .Net Rocks I heard of another company that sells similar components for .Net Micro. Check out their websites…. TinyClr GHI Electronics .Net Micro Website Trossen Robotics

    Read the article

  • How can I edit my httpd.conf file?

    - by EmmyS
    I have xampp installed, and need to edit my httpd.conf file to add a virtual host block. If I right-click on the file in Nautilus and open with gedit, I can see all the content, but it's read-only. If I try to open it via terminal, like this: esther@estherLinuxSony:~$ sudo gedit opt/lampp/etc/extra/httpd-vhosts.conf It opens the root version of gedit, but there's no content in the file. How can I edit this file?

    Read the article

  • Power Management with Oracle VM Server for SPARC

    - by Honglin Su
    With the introduction of Oracle VM Server for SPARC 2.2, it includes power management features which can be set via the service processor (ILOM) of the supported SPARC T-Series systems. Watch this video to learn about the hardware power savings capabilities available on SPARC T4 systems, and how Oracle VM Server for SPARC makes use of them. The video will show you how to choose a power management policy and set a power cap. For more information, read the OTN technical article "How to Use the Power Management Controls on SPARC Servers".

    Read the article

  • 2-d lighting day/night cycle

    - by Richard
    Off the back of this post in which I asked two questions and received one answer, which I accepted as a valid answer. I have decided to re-ask the outstanding question. I have implemented light points with shadow casting as shown here but I would like an overall map light with no point/light source. The map setup is a top-down 2-d 50X50 pixel grid. How would I go about implementing a day/night cycle lighting across a map?

    Read the article

  • Misadventures at Radio Shack

    - by Chris Williams
    While I'm waiting for my Arduino kits to show up, I started reading the Getting Started With Arduino book from O'Reilly (review coming later) and I'm about 40 pages in when I get to a parts list for one of the first projects. Looks pretty straightforward, and even has Radio Shack part numbers next to almost everything. So on my lunch today, I decided to run out to "The Shack" (seriously, that's their rebranding?) to pick up some basics, like a couple resistors, a breadboard, a momentary switch and a pack of pre-cut jumper wires. I found the resistors without any difficulty, and while they didn't have the exact switch I wanted, it was easy enough to find one that would do. That's where my good luck abruptly ended. I was surprised that I couldn't find a breadboard or any jumper wires, so while I was looking around, a guy came up and asked me if I needed some help. I told him I did, explained what I needed and even gave him the Radio Shack part number for the pack of jumper wires. After a couple minutes he says he can't find anything in the system, which was unfortunate but not the end of the world.  So then I asked him about the breadboard, and he pointed me to some blank circuitboards (which are not the same thing) and I said (nicely) that those weren't breadboards and attempted to explain (again) what I needed, at which point he says to me "I don't even know what the hell you're looking for!" I stood there for a moment and tried to process his words. About that time, another salesperson came up and asked what I was trying to find. I told her I needed a breadboard, and she pointed to the blank circuit boards and said "they're right in front of you..." After seeing the look on my face, she thought for a minute and said... "OH! you mean those white things. We don't have those anymore." I thanked her, set everything down on the counter and left. (I wasn't going to buy only half the stuff I needed.. and I was pretty sure I was never going to be buying ANYTHING at that particular location ever again.) Guess I'll be ordering more stuff online at this point. It's a shame really, because I used to LOVE going to Radio Shack as a kid, and looking through all the cool electronics components and stuff, even if I didnt understand what most of them were at the time. Seems like the only thing they carry in any quantity/variety now is cell phones and random stereo connectors.

    Read the article

  • Dell bios nightmare on optiplex

    - by Minster
    I own a Dell optiplex gx260 pc and I got bios revision a03 and want to go higher like a09 I tried the Dell support page using the Wine program down loader after a little configuring and set up on Install Shield Wizard I get the message "unable to obtain required information about your system..setup cannot complete" the pc doesn't have a floppy diskette drive any more and the other option using download manager is only executable via Windows Internet explorer I don't blame wine or anybody else but this is frustrating.

    Read the article

  • Web Site Search Engines - Sending Your Site to Search Engine Sites

    Search engines are number one cost effective approach to market your business and web site. Studies indicate that vast majority viewers find web sites via leading search engines and directories. Quality listing on leading search engine or directory may drive targeted traffic to your website and improve your business in a short period of time.

    Read the article

< Previous Page | 338 339 340 341 342 343 344 345 346 347 348 349  | Next Page >