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  • Selecting the Most Efficient SEO Software

    SEO software are the most efficient tools to help anyone who is trying to do SEO in the present world. They offer great tools that make work easier and save time. They help make the site owner more efficient and valuable search engine marketer as well as give yourself or your clients an edge over your competitors. There are a lot of SEO softwares out there in the market.

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  • is a factory pattern to prevent multuple instances for same object (instance that is Equal) good design?

    - by dsollen
    I have a number of objects storing state. There are essentially two types of fields. The ones that uniquly define what the object is (what node, what edge etc), and the oens that store state describing how these things are connected (this node is connected to these edges, this edge is part of these paths) etc. My model is updating the state variables using package methdos, so these objects all act as immutable to anyone not in Model scope. All Objects extend one base type. I've toyed with the idea of a Factory approch which accepts a Builder object and construct the applicable object. However, if an instance of the object already exists (ie would return true if I created the object defined by the builder and passed it to the equal method for the existing instance) the factory returns the current object instead of creating a new instance. Because the Equal method would only compare what uniquly defines the type of object (this is node A nto node B) but won't check the dynamic state stuff (node A is currently connected to nodes C and E) this would be a way of ensuring anyone that wants my Node A automatically knows it's state connections. More importantly it would prevent aliasing nightmares of someone trying to pass an instance of node A with different state then the node A in my model has. I've never heard of this pattern before, and it's a bit odd. I would have to do some overiding of serlization methods to make it work (ensure when I read in a serilized object I add it to my facotry list of known instances, and/or return an existing factory in it's place), as well as using a weakHashMap as if it was a weakHashSet to know rather an instance exists without worrying about a quasi-memory leak occuring. I don't know if this is too confusing or prone to it's own obscure bugs. One thing I know is that plugins interface with lowest level hardware. The plugins have to be able to return state taht is different then my memory; to tell my memory when it's own state is inconsistent. I believe this is possible despit their fetching objects that exist in my memory; we allow building of objects without checking their consistency with the model until the addToModel is called anyways; and the existing plugins design was written before all this extra state existed and worked fine without ever being aware of it. Should I just be using some other design to avoid this crazyness? (I have another question to that affect I'm posting).

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  • C# Collision Math Help

    - by user36037
    I am making my own collision detection in MonoGame. I have a PolyLine class That has a property to return the normal of that PolyLine instance. I have a ConvexPolySprite class that has a List LineSegments. I hav a CircleSprite class that has a Center Property and a Radius Property. I am using a static class for the collision detection method. I am testing it on a single line segment. Vector2(200,0) = Vector2(300, 200) The problem is it detects the collision anywhere along the path of line out into space. I cannot figure out why. Thanks in advance; public class PolyLine { //--------------------------------------------------------------------------------------------------------------------------- // Class Properties /// <summary> /// Property for the upper left-hand corner of the owner of this instance /// </summary> public Vector2 ParentPosition { get; set; } /// <summary> /// Relative start point of the line segment /// </summary> public Vector2 RelativeStartPoint { get; set; } /// <summary> /// Relative end point of the line segment /// </summary> public Vector2 RelativeEndPoint { get; set; } /// <summary> /// Property that gets the absolute position of the starting point of the line segment /// </summary> public Vector2 AbsoluteStartPoint { get { return ParentPosition + RelativeStartPoint; } }//end of AbsoluteStartPoint /// <summary> /// Gets the absolute position of the end point of the line segment /// </summary> public Vector2 AbsoluteEndPoint { get { return ParentPosition + RelativeEndPoint; } }//end of AbsoluteEndPoint public Vector2 NormalizedLeftNormal { get { Vector2 P = AbsoluteEndPoint - AbsoluteStartPoint; P.Normalize(); float x = P.X; float y = P.Y; return new Vector2(-y, x); } }//end of NormalizedLeftNormal //--------------------------------------------------------------------------------------------------------------------------- // Class Constructors /// <summary> /// Sole ctor /// </summary> /// <param name="parentPosition"></param> /// <param name="relStart"></param> /// <param name="relEnd"></param> public PolyLine(Vector2 parentPosition, Vector2 relStart, Vector2 relEnd) { ParentPosition = parentPosition; RelativeEndPoint = relEnd; RelativeStartPoint = relStart; }//end of ctor }//end of PolyLine class public static bool Collided(CircleSprite circle, ConvexPolygonSprite poly) { var distance = Vector2.Dot(circle.Position - poly.LineSegments[0].AbsoluteEndPoint, poly.LineSegments[0].NormalizedLeftNormal) + circle.Radius; if (distance <= 0) { return false; } else { return true; } }//end of collided

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  • Silverlight 4 SDK Release Candidate Is Available

    Microsoft has unveiled the Release Candidate of the Silverlight 4 SDK. This latest version delivers hundreds of features and controls that present the leading edge in rapid, powerful application development. Note: this is a developer release only that does not have "go-live" licensing available or an end-user runtime....Did 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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  • Quality SEO Services to Guarantee Your Online Popularity

    Internet Marketing strategies aim to give you the edge you need to succeed in the online scenario. Whether its business, outsourcing, or for popularity purposes, Internet Marketing aims to put you on top and keep your competitions down. Keep in mind that implementation of its strategies alone is not enough to guarantee that you're going to meet your goals. In most cases, you have to opt for expert implementation of quality SEO Services to ensure your success in the online setting.

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  • What are some of the more commonly used projectile rendering techniques?

    - by KlashnikovKid
    couldn't find a duplicate question (bit surprising to me) but anywho I'm starting to get near implementing the rendering of projectiles for my game. My question is what are some good techniques for efficiently rendering projectiles? I would like emphasis on techniques that leave room for the projectiles to be "rich" and dynamic (Cool to look at!) I'm also using DX11 for my rendering engine so bleeding edge techniques that can make use of that would be much appreciated too. Thanks!

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  • La reconnaissance d'humeur bientôt intégrée à Kinect ? Microsoft envisage d'étendre les capacités du dispositif

    La reconnaissance d'humeur bientôt intégrée à Kinect ? Microsoft envisage d'étendre les capacités du dispositif Kinect, le capteur de mouvements de Microsoft pour la Xbox pourrait bientôt être doté de nouvelles interactions avec le joueur. [IMG]http://rdonfack.developpez.com/images/kinect.jpg[/IMG] En plus des caractéristiques de reconnaissance de mouvements, de reconnaissance visuelle et de reconnaissance vocale, le dispositif devrait être doté de fonctionnalités permettant la détection d'émotions. Microsoft plancherait actuellement sur l'intégration de cette fonctionnalité au sein du dispositif dans le futur, selon les déclarations de Kudo Tsunoda , vice-p...

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  • Java : Google introduit la programmation par contrat avec une extension open source qui aiderait aussi à sécuriser les programmes

    Java : Google introduit la programmation par contrat Avec une extension open source qui aiderait aussi à sécuriser les programmes Google vient de passer sous licence open source un projet destiné à introduire la programmation par contrat au langage Java. Ce paradigme de conception logiciel initié pour le langage Eiffel devrait faciliter le développement et aider la détection précoce des imperfections dans les premières phases de créations du code. Ce nouveau projet, appelé Cofoja (contraction de « Contracts For Java ») devrait également permettre de sécuriser les applications contre les exploits de type dépassement de tampon notamment, véritable plaie de sécurité po...

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  • Oracle 12c: First (and best!) on Solaris

    - by mgerdts
    Oracle 12c is now available for download.  Notice that support for Solaris SPARC and x86-64 are among the operating systems supported on the first day of availability. New database features that relate to Solaris include: I/O outlier support.  This is made possible through the database's use of DTrace, and as such Solaris has a clear edge here. Oracle ACFS Replication and Tagging for Solaris Integration with Solaris resource pools As has been the case for some time, Oracle databases are supported in zones.

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  • SEO Link Building Service Tips

    A seo link building service is an essential tool for the modern web master. In today's competitive business environment having an edge is vital for success. This is especially true on the internet where your competition can number in the thousands or more.

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  • Microsoft Office Communications Server 2007 R2 – Part II

    Once you have set up Office Communication Server 2007 R2 to provide IM within the rganisation, the next stage is to provide full telephony by setting up the OCS Mediation Server and the OCS Edge Server to connect ‘outside’ the organization, and escpecially to a SIP trunk provider of Internet phone services.

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  • Game-over! Gaining Physical access to a computer

    Security requires defense in depth. The cleverest intrusion detection system, combined with the best antivirus, won’t help you if a malicious person can gain physical access to your PC or server. A routine job, helping a family member remove a malware infection, brings it home to Wesley just how easy it is to get a command prompt with SYSTEM access on any PC, and inspires him to give a warning about the consequences.

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  • Understanding the Business of Web Development

    Internet reaches out to a wide audience and is used to publish personal and professional information with some engaging user experience. Web development or setting up a website or enthralling web application and hosting it on the Internet has become simpler through the use of cutting edge technology. In fact the technology is meant to be used by the web developers as well as the end users for improving the overall web experience.

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  • Considering SEO?

    Many businessmen go online without realizing they need to work beyond the construction and launching phases of their websites to make them effective. They can have the best designs and the best content, but if people don't even know such sites exist, then they become practically useless. A business benefits from a website because of the marketing edge it makes possible, but how can a website even market itself when very few people are checking it out? This is the reason why search engine optimization service professionals exist.

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  • Should You Invest in an SEO Content Service?

    If you're marketing your site on the Internet, you're probably wondering how to give your company the edge in a vast sea of competitors and other sites clamoring for the attention of both customers and search engines. The problem for many small businesses (some of them are just one person) is that they just don't have the resources to pull off large marketing campaigns.

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  • HTML5 Browsers

    Who supports HTML5? The following sites have some good charts on the most cutting edge browsers sporting the latest HTML5 support [html5readiness.com][1] shows the progress of current browser support for HTML5. [WTF is HTML5][2] Safari Webkit based browsers are de... Did 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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  • MVC Can the model know ANYTHING about the view?

    - by AwDogsGo2Heaven
    I'm working on a game, and without getting into any details I am using MVC "patterns", "rules" or whatever you want to call it to make the game. The view includes everything needed to draw things on the screen, the controller passes input to the model. And the Model contains game logic. Here's my problem, the game is being made for mobile devices that vary in screen sizes. I feel my model needs to know the view size so it can appropriately adjust for it. I've thought about it for a while I could put all the adjustments in the view, but it just seems inefficient to translate the model positioning to the view's needed positioning every time. If the model knows the size it only needed to adjust itself once. So my question is can I pass the view size to the model without 'breaking' MVC? I feel personally they are still decoupled this way because a size is just a number, I could still change the view any time as long as it has a size. But I wanted to get a community response on this because I haven't seen many discussions of MVC being used in a game. (And to be clear I don't want an answer of why I shouldn't use it in a game, but do I break MVC by letting it know the view's size) EDIT - More details on the game's needs and why I wanted to pass the view. Some objects positions need to be set relative to the edge of the screen (such as UI elements) so that they appear relatively in the same place. Sprite sizes are not stretched if the window size is wider such as an IPhone 5 screen. They will just be placed relatively to the screen edge. .If I gave it to the view to handle this, I will need a flag saying that this element is positioned say x number of pixels from TOP BOTTOM RIGHT LEFT. Then allow the view to draw it with that information. Its acceptable, I just wanted to know if there was a better way while still being MVC because it seems this way will be repeating a logic over and over, where as if I knew the view size in the model, I could convert all the relative positions into absolute positions in one run, but with this I have to convert on every update to the screen.

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  • Where Can I Find Search Engine Optimization Help?

    How will you be able to attract customers if your website is not in the top search engines? Well you will either need to hire a professional SEO or learn the tips and techniques in order to gain the competitive edge you need. You are now probably asking where you can find search engine optimization help.

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  • Colliding Rects [migrated]

    - by user73400
    I have been working on this game, but I have a question when it comes to collision detection. Can I check for collision and have it return True: example: def collide(self, EnemyTank): tank_collision = pygame.sprite.collide_rect(self.rect, EnemyTank.rect) if tank_collision == True: return True And then make it perform an action like this: if player.collide == True: e_tank_x += 0 I am new to programming so please bear with me, I am trying as hard as I can and any comments or suggestions would also be very appreciated.

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  • How do I force Windows 7 to recognize my Projector?

    - by user63564
    I have a new Dell XPS with an NVIDIA GeForce GT 445M and an old (several years) Epson PowerLite Cinema 550 projector. Windows 7 refuses to recognize that the projector is connected under normal conditions (I'll get to the strange condition in a moment). Here are some things that I have already tried: Confirm that the projector continues to work well on my old Windows XP laptop. Confirm that the video cable (HDMI to HDMI) is connected Make sure the Dell laptop is plugged in to wall power at all times Reboot both the computer and the projector Click "Detect" under the "Connect to an External Display" Windows dialog (no reaction) Click "Rigorous Display Detection" under NVIDIA Control Panel (dialog: none found) Checked "Force Television Detection on startup" under "My display is not shown..." in NVIDIA Control Panel (no effect) Here's where it gets weird... My projector has three states: off, standby and on. Standby means the power switch on the back is on, but the projector is effectively off (no picture, no access to menu or controls). When I plug in the HDMI cable while the projector is in standby, Windows detects the projector! It lets me switch to Duplicate, Extend, or Project Only mode, and adjusts the resolution appropriately. A new Generic Plug-n-Play monitor shows up in my device manager. A "Seiko EPSON PJ" display shows up in my NVIDIA control panel. Then if I turn my projector on, Windows no longer recognizes the display. This is true whether I turn the projector on while the HDMI cable is plugged in, or if I unplug the HDMI cable while turning on the projector. Anyone have any ideas, because I'm completely stumped...?

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  • IDE/PATA high-speed hard drive dock

    - by wfaulk
    I frequently need to access bare drives for backups and need a quick, high-speed way to deal with them. There are a multitude of SATA hard drive docks (for example), but I have a lot of IDE/PATA (hereafter "IDE") drives that I would like to be able to use similarly. There are IDE-to-SATA adapters so you can plug your IDE hard drive into a SATA port, so I don't see any reason why you couldn't use the same technology to have a native dock, yet none seems to exist. Now, I'm aware that 3.5" IDE drives do not have a specification for the layout of the connector, and therefore can't be slapped into a dock the same way a SATA drive could, but 2.5" PATA drives do. In fact, I'm not terribly interested in supporting 3.5" drives. It would be nice, but I deal with them far less frequently than 2.5" drives. Also, I'd very much like for the connection to the computer be faster than USB, preferably eSATA, I don't want to be spending time mounting a drive inside an enclosure, I don't want bare drives lying around with a cable hanging off of them, and I'd prefer a single dock rather than two. What seems like the ideal solution to me would be a regular SATA→eSATA dock and some sort of screwless adapter for IDE drives, but I'm open to any suggestions, regardless of my stated preferences, but which are, in some sort of order of preference: high-speed (faster than USB, at least) holder for drive (not just a cable) no complicated enclosure support for 3.5" IDE drives single dock Updates: Here's a 3.5" IDE to 3.5" SATA docking adapter that could be part of the solution. Weird. I figured that would be the impossible part. I was hoping to find something like this 2.5" to 3.5" SATA chassis that would take a 44-pin IDE drive internally. It looks like the Vantec EZ Swap EX comes awfully close. It has its own bay dock, but it looks like the SATA ports on the back are spaced properly, even if they're not aligned quite properly. Unfortunately, the proper position is at the very edge of the drive, which means that the docks' connectors are at the very edge of their recesses, which means there's no way to fit it in there.

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  • Windows 7 Media Center PC not displaying MKV files properly

    - by David
    Does anyone know why Windows Media Center wouldn't correctly display a 16x9 video? I just upgraded my home-built HTPC from Vista Ultimate (hey, it was a giveaway) to Windows 7 Ultimate - clean install. After that, I installed the Divx7 beta (to get .MKV support) and AC3filter (so I could HEAR the MKV files). Previously, under Vista Ultimate (32 bit), I had Arcsoft's Total Theater Pro for playing Blu-Rays and MKV decoding under Media Center. Now when I play a 720p 16x9 MKV file, I get some 'letterboxing' - like it's halfway between 4x3 and 16x9 - with the aspect ration looking alightly squished as a result. Here's the wierd part. If I use the Media Center connection software in my XBox 360 - it plays perfectly, filling the 16x9 screen edge-to-edge, just like Vista's WMC software USED to. Of course, beats the network up because the XBox goes to the HTPC, the HTPC goes to my WHS machine to fetch the data, it comes back to the HTPC, gets transcoded and streamed back to the Xbox. I'm running the latest drivers for an NVidia card (as fetched by Windows 7). I have no idea WHY this is because if I play "ordinary" (i.s. SD) Divx files that are 16x9, they play just fine, scaled right up to my screen's edges. It puzzles me as to why the same machine that properly converts the bits for the Xbox can't display/scale them properly for the attached display. Mind you, Windows Media Player exhibits the same symptoms. Ideas?

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