Search Results

Search found 40915 results on 1637 pages for 'virtual method'.

Page 818/1637 | < Previous Page | 814 815 816 817 818 819 820 821 822 823 824 825  | Next Page >

• Unit testing a text index

  - by jplot

  Consider a text index such as a suffix tree or a suffix array supporting Count queries (number of occurrences of a pattern) and Locate queries (the positions of all the occurrences of a pattern) over a given text. How would you go about unit testing such a class ? What I have in mind is to generate a big random string then extract a random substring from this big string and compare the results of both queries with naive implementations (such as string::find). Another idea I have is to find the most frequent substring of length l appearing in the original string (using perhaps a naive method) and use these substrings for testing the index. This isn't the best way, so what would be a good design of the unit tests for a text index ? In case it matters, this is in C++ using google test.

  Read the article

• From the Coalface - 4 - Getting a connection string

  - by TATWORTH

  Creating a connection string by hand is quite difficult, however you create a connection string as follows: 1) Create an empty text file in windows explorer and rename it to X.UDL 2) Double click on it and the datalink provider dialog will appear. 3) Select the provider tab. Find the provider for your data access method and click next. 4) Select your source  5) Test the connection and save it. 6) Open X.UDL with a text editor to see your connections string. You can also look at http://www.connectionstrings.com/ for examples of connection strings.

  Read the article

• Unable to remove network proxy

  - by Rushil

  I'm on 11.10 I'd set up a network proxy a couple of days back from system settings .And afterwards I'd set my proxy method back to none. However, my proxy has not been removed. I know this because: a: 127.0.0.1 routes me to the index.html file in the base directory of the proxy server. b: I'm able to access my university internet after hours. I checked my /etc/environment and etc/apt/apt.conf file and both of them have no proxy details. I also tried resetting the proxy and then getting rid of it but that didn't work either.

  Read the article

• Gnome Shell installed not working in Ubuntu 12.04

  - by user68180

  I had Gnome Shell working perfectly on my desktop, and I tried to install it on my laptop by the exact same method, (tried apt-get, synaptic and software centre), but it won't work. It seems to install fine with no errors. If I select "Gnome" at login, I get the "Gnome Classic" interface rather than Gnome Shell. My laptop has sufficient specs to run Gnome Shell. Am I missing something? EDIT: I have just discovered that under System Details Graphics, it says "Unknown". So, Ubuntu hasn't recognised my graphics card, and I'm guessing this is why Gnome Shell can't work. I have a nVidia GeForce GT 525M. How can I get it working? (as you may have realised, I'm a linux noob)

  Read the article

• Oracle VM Virtualbox 4.0 released !

  - by wim.coekaerts

  Another great day for the Virtualbox development team. As is custom, they churn out new features and enhancements at a record pace. You can find the changelog here and you can download your version of 4.0 here. Have at it. A bunch of changes, visually a new management console, a new method to install with a base install and the extention pack (for the add-on drivers and extra features), a number of bugfixes, multi-monitor support for Oracle Solaris and Linux, it's a long list. A great product with a great user base. Check out this survey!

  Read the article

• Problem with Update(GameTime) Methods and Pause implementation

  - by Adam

  I have the pause function implemented and it works correctly in that it dims the player screen and stops updating the gameplay. The problem is that GameTime continues to increase while it is paused, so my method that checks gameTime versus previousSpawnTime before spawning another enemy gets messed up and if the game is paused too long it is noticeable that the next enemy draws far too early. Here is my code for the enemy update. private void UpdateEnemies(GameTime gameTime) { // Spawn a new enemy every 1.5 seconds if (gameTime.TotalGameTime - previousSpawnTime > enemySpawnTime) { previousSpawnTime = gameTime.TotalGameTime; // Add an Enemy AddEnemy(); } ... I also have other methods that depend on gameTime. I've tried getting the total pause time and subtracting that from the total game time, but I can't seem to get it to work correctly if that is the way I should go about solving this. If you need to see any other code let me know. Thank you.

  Read the article

• Gallery of Exoplanets

  - by TATWORTH

  Space.com have put together a gallery of exoplanets (planets outside our solar system) at http://www.space.com/13986-gallery-smallest-alien-planets-exoplanets.htmlSome exoplanets have been discovered by monitoring the red/blue shift of the star, whereas others have been found by the transit method. The kepler space telescope is continuously monitoring a small patch of the sky for transits.Here are some of the more interesting (and eye-catching pictures). Remember so far the best image of an extra-solar planets has been a diffraction blur, but even just as artist's impressions based upon the best current evidence, they are very impressive. Have a look at the Gallery at http://www.space.com/13986-gallery-smallest-alien-planets-exoplanets.html, it is very impressive.

  Read the article

• HTML5 - check if font has loaded

  - by espais

  At present I load my font for my game in with @font-face For instance: @font-face { font-family: 'Orbitron'; src: url('res/orbitron-medium.ttf'); } and then reference it throughout my JS implementation as such: ctx.font = "12pt Orbitron"; where ctx is my 2d context from the canvas. However, I notice a certain lag time while the font is downloaded to the user. Is there a way I can use a default font until it is loaded in? Edit - I'll expand the question, because I hadn't taken the first comment into account. What would the proper method of handling this be in the case that a user has disabled custom fonts?

  Read the article

• FPS camera specification

  - by user1095108

  I remember I once composed a FPS viewing transformation, as a composition of 3 rotations, each with an angle as a parameter. The first angle specified the left/right rotation around the y-axis, the second angle the up/down rotation around the x-axis, and the third around the z-axis. The viewing transformation was therefore specified by 3 angles. Naturally, this transformation had a gimbal lock, depending in what order the transformation were performed. What should I look at to derive my viewing transformation without the gimbal lock? I know the "lookAt" method already, but I consider that cumbersome. EDIT: MY first guess is to do the first 2 transformations to get a viewing direction and then the axis-angle rotation on this axis.

  Read the article

• Re-sizing the form without scaling the GUI

  - by Bmoore

  I am writing a turn based strategy game in C#. My GUI implementation consists of class that extends Form containing a class that extends Panel. When I render the GUI I draw to the paint method in the panel. I am trying to figure out what is the best way for handling form re-size events. I know I want a minimum window size, but I would prefer to not have a maximum or a set size. Ideally the GUI would reveal more/less of the map as the user changes the window size. I would like to avoid scaling the graphics if at all possible. What is the best way to handle re-size events?

  Read the article

• Adding a short delay between bullets

  - by Sun

  I'm having some trouble simulating bullets in my 2D shooter. I want similar mechanics to Megaman, where the user can hold down the shoot button and a continues stream of bullets are fired but with a slight delay. Currently, when the user fires a bullet in my game a get an almost laser like effect. Below is a screen shot of some bullets being fired while running and jumping. In my update method I have the following: if(gc.getInput().isKeyDown(Input.KEY_SPACE) ){ bullets.add(new Bullet(player.getPos().getX() + 30,player.getPos().getY() + 17)); } Then I simply iterate through the array list increasing its x value on each update. Moreover, pressing the shoot button (Space bar) creates multiple bullets instead of just creating one even though I am adding only one new bullet to my array list. What would be the best way to solve this problem?

  Read the article

• What options are there for splitting UI layout from code logic using a markup language?

  - by Daenyth

  What tools similar to GWT's UIBinder exist in other languages? By this I mean a system where you can define your UI layout in a markup language (preferably html+css) and attach the functionality to the layout using the code. I'm most interested in anything for python, but answers in other languages would interest me as well. I'm interested because the benefits of having a non-programmer work directly on the layout without needing to touch the code and adjust a bunch of UI toolkit method calls is very productive. I'm aware of Flex for flash, but is there anything else out there? What search terms might I use to find such frameworks? I've looked around but I haven't found anything concrete.

  Read the article

• How can I get textures on edge of walls like in Super Metroid and Aquaria?

  - by meds

  Games like Super Metroid and Aquaria present the terrain with the other facing parts having rocks and stuff while deeper behind them (i.e. underground) there's different detail or just black. I would like to do something similar using polygons. Terrain is created in my current level as a set of overlapping square boxes. I'm not sure if this rendering method will work such a system for creating terrain but if anyone has ideas I'd love to hear them. Otherwise I'd like to know how I should re-write the terrain rendering system so it actually works to draw terrain in this manner...

  Read the article

• I can't link my Algorithms and the problem idea with writing the code?

  - by Novice Programmer

  First ,, i have just learnt c , c++ and started with java .. i faced serious problem in the first two ones . any sort of problem i can handle with it on my mind ,, if it's much complex i use the pen and paper method , i nearly could solve any easy problem ,, but when i start to write the code i don't know what's happening i got totally lost and even the best problems i can't link the solution with the code . it's not a problem with syntax because i know the syntax well . i need to figure what's the problem and find a way to solve it !! thanks . (Excuse me for my bad English)

  Read the article

• Keeping files private on the internet (.htaccess password or software/php/wordpress password)

  - by jiewmeng

  I was asked a while ago to setup a server such that only authenticated users can access files. It was like a test server for clients to view WIP sites. More recently, I want to do something similar for some of my files. Tho they are not very confidential, I wish that I am the only one viewing it. I thought of doing the same, Create a robots.txt User-agent: * Disallow: / Setup some password protection, .htpasswd seems like a very ugly way to do it. It will prompt me even when I log into FTP. I wonder if software method like password protected posts in Wordpress will do the trick of locking out the public and hiding content from Search Engines? Or some self made PHP script will do the trick?

  Read the article

• How do I POST XML generated to a URL in C#

  - by user2922687

  Hi guys an new to C# and i need help, am trying to send XML generated to a URL, I keep getting error with HttpWebResponse. This is my code. //POST to URL var httpRequest = (HttpWebRequest)WebRequest.Create("http://xxx.xxx.xxx.xxx:8000"); httpRequest.Method = "POST"; httpRequest.ContentType = "text/xml; charset=utf-8"; httpRequest.ProtocolVersion = HttpVersion.Version11; //Set appropriate headers var xmlWriterSettings = new XmlWriterSettings { NewLineHandling = NewLineHandling.None, Encoding = Encoding.ASCII }; using (var requestStream = httpRequest.GetRequestStream()) { xmlDoc.Save(requestStream); } using (var response = (HttpWebResponse)httpRequest.GetResponse()) using (var responseStream = response.GetResponseStream()) { // Response Code to see if the request was successful var responseXml = new XmlDocument(); responseXml.Load(responseStream); using (var repp = XmlWriter.Create("response.xml")) { responseXml.Save(repp); } }

  Read the article

• How can I get a 2D texture to rotate like a compass in XNA?

  - by IronGiraffe

  I'm working on a small maze puzzle game and I'm trying to add a compass to make it somewhat easier for the player to find their way around the maze. The problem is: I'm using XNA's draw method to rotate the arrow and I don't really know how to get it to rotate properly. What I need it to do is point towards the exit from the player's position, but I'm not sure how I can do that. So does anyone know how I can do this? Is there a better way to do it?

  Read the article

• Run programs that require a window manager, on the CLI

  - by Twitchy

  Is there any way I can run a game server (MW3) under wine without requiring a window manager present? Currently to run windows only game servers on my Ubuntu box, I have to start them using RDP access as this creates a X session which the program (which has its own GUI). This is a pain as it cannot be automated (or can it?) on start up. What I would rather is some sort of X session emulator that pulls the console output of the program into the CLI so that I can automate server start ups. Is there any program or method that can do this?

  Read the article

• Custom trackpad mapping doesn't work for all applications

  - by picheto

  I found out I could invert my trackpad scrolling, so as to work more like the OS X "natural scrolling", which I liked better. To do that, I run the following command on startup: xinput set-button-map 11 1 2 3 5 4 7 6 Where 11 is the touchpad id (found with xinput list and xinput test 11). This inverts the vertical and horizontal two-finger scrolling, and works fine in Terminal, Chrome, Document Viewer, etc. However, it doesn't work in Nautilus and some applications such as the Update Manager, as they keep the usual mapping. I'm running Ubuntu 12.04 x64 Why does this mapping work for some applications but not for others? I know there is software I can download to do the same, but this method seemed "cleaner". Thanks

  Read the article

• Updating "Inactive" Chunks

  - by Conner Bryan

  In my game, the only chunks (4x4 areas of tiles) in memory are the ones that the player is in. However, chunks need to have updates applied to them over time. A (likely) well-known example would be MineCraft: even if the player isn't in a chunk, the wheat still needs to grow over time. My current solution is to call a method and pass in the time since the chunk was active.. but what if the chunk depends on nearby chunks for information, i.e. vines spreading or similar? Is there any reasonable solutions to this problem, or should I simply not depend on nearby chunks?

  Read the article

• How to smartly optimize ads on website

  - by YardenST

  I've a content website that presents ads. Now, my team want to optimize it for a better experience for the users. (we really believe our ads are good for our users.) We are sure that every website deals with this issue and there must be some known ways and methods to deal with it, that smart people thought of before. so what i'm looking is a tested, working method to optimize ads. for example: if i was asking about optimizing my website in Google, I would expect you to answer me: learn SEO if i was asking about optimizing the use of my website: usability testing. navigation: information architecture what is the field that deals with optimizing ads?

  Read the article

• How do I best remove an entity from my game loop when it is dead?

  - by Iain

  Ok so I have a big list of all my entities which I loop through and update. In AS3 I can store this as an Array (dynamic length, untyped), a Vector (typed) or a linked list (not native). At the moment I'm using Array but I plan to change to Vector or linked list if it is faster. Anyway, my question, when an Entity is destroyed, how should I remove it from the list? I could null its position, splice it out or just set a flag on it to say "skip over me, I'm dead." I'm pooling my entities, so an Entity that is dead is quite likely to be alive again at some point. For each type of collection what is my best strategy, and which combination of collection type and removal method will work best?

  Read the article

• How do I change the keyboard layout to a non-standard one on a Live (USB) session?

  - by Agmenor

  I am running Ubuntu 13.04 in a Live (USB) session. My physical keyboard layout is called Bépo, it is the French language Dvorak method-based layout. I would like to change my input layout to this too. To do this, I tried booting in a French spoken session, then open the Keyboard Layout preferences app. Normally, to add a layout, you should click on the + sign and select your layout. However the list that appears is very short and does not contain what I want. On the contrary, on a persistent non-live installation, the choice of Bépo is present. This is also the case during an installation of Ubuntu. So I do I change the keyboard layout of my live session to the correct one?

  Read the article

• Detailed Modern Opengl Tutorial?

  - by Kogesho

  I am asking for a specific modern opengl tutorial. I need a tutorial that does not skip to explain any lines of code. It should also include different independent objects moving/rotating (most tutorials use only one object), as well as imported 3d objects and collision detection for them. It should also avoid stuff that won't be used. Arcysnthesis for example gives a new concept, and after teaching it, in the next tutorial, it explains how bad it is for performance and introduces another method. Do you know any?

  Read the article

• When do one give up on programming challenges to look at the solutions?

  - by snowpolar

  Recently, I have been trying to learn programming and improve my ability in writing method level code through practices on websites such as Codingbat.com However in the recent weeks I have been stuck for weeks at the last 2-3 questions of String-2/Array-2 and early String/Array-3 problems. It feels really tempting for me to give up and google online for the solutions, but I'm afraid that by doing so I may end up not improving my ability at all. I wonder if this is common and when faced with such situations how long do 1 wait before giving up to look at the solutions or to continue spending more weeks on trying to solve the problems by yourself? How do 1 really engage in effective deliberate practice to improve programming ability and attain the necessary problem solving techniques? Any formal techniques available to tackle the never seen before problems?

  Read the article

< Previous Page | 814 815 816 817 818 819 820 821 822 823 824 825  | Next Page >