Search Results

Search found 6438 results on 258 pages for 'layer groups'.

Page 54/258 | < Previous Page | 50 51 52 53 54 55 56 57 58 59 60 61  | Next Page >

• Screen becomes black after pressing dash or alt-tab

  - by cegerxwin

  I did an upgrade from 11.04 to 11.10. Unity 3d becomes a black screen after pressing the dash-button or after pressing alt-tab to switch between open windows. I can see the panel on the top(lock,sound,..) and the panel on the left (launcher) but the rest is black. It looks like a maximised black window. The open Windows are active but I cant see them. I logout by pressing logout in the right top corner and pressing enter (because logout is default focused on the dialogue screen) and leave unity3d. Unity3d worked with 11.04 very good. If I press the dash button the dash looks like an 16-Bit or 8-Bit window and buttons for maximise, minimise and close are displayed and looks inverted. I have rebooted my notebook just now and log in to Unity 3D and tested some features of Unity and everything works well. The black thing is only a layer. I can use my desktop but cant see anything because of the layer, but everything works. It seems so, that a layer appear when pressing dash or alt-tab and does not disappear when close dash or choose a running app with alt-tab. you will see the necessary info related video problems: Unity support: /usr/lib/nux/unity_support_test -p OpenGL vendor string: X.Org R300 Project OpenGL renderer string: Gallium 0.4 on ATI RC410 OpenGL version string: 2.1 Mesa 7.11-devel Not software rendered: yes Not blacklisted: yes GLX fbconfig: yes GLX texture from pixmap: yes GL npot or rect textures: yes GL vertex program: yes GL fragment program: yes GL vertex buffer object: yes GL framebuffer object: yes GL version is 1.4+: yes Unity 3D supported: yes xorg glxinfo lspci -nn | grep VGA 01:05.0 VGA compatible controller [0300]: ATI Technologies Inc RC410 [Radeon Xpress 200M] [1002:5a62]

  Read the article

• How do I detect and handle collisions using a tile property with Slick2D?

  - by oracleCreeper

  I am trying to set up collision detection in Slick2D based on a tilemap. I currently have two layers on the maps I'm using, a background layer, and a collision layer. The collision layer has a tile with a 'blocked' property, painted over the areas the player can't walk on. I have looked through the Slick documentation, but do not understand how to read a tile property and use it as a flag for collision detection. My method of 'moving' the player is somewhat different, and might affect how collisions are handled. Instead of updating the player's location on the window, the player always stays in the same spot, updating the x and y the map is rendered at. I am working on collisions with objects by restricting the player's movement when its hitbox intersects an object's hitbox. The code for the player hitting the right side of an object, for example, would look like this: if(Player.bounds.intersects(object.bounds)&&(Player.x<=(object.x+object.width+0.5))&&Player.isMovingLeft){ isInCollision=true; level.moveMapRight(); } else if(Player.bounds.intersects(object.bounds)&&(Player.x<=(object.x+object.width+0.5))&&Player.isMovingRight){ isInCollision=true; level.moveMapRight(); } else if(Player.bounds.intersects(object.bounds)&&(Player.x<=(object.x+object.width+0.5))&&Player.isMovingUp){ isInCollision=true; level.moveMapRight(); } else if(Player.bounds.intersects(object.bounds)&&(Player.x<=(object.x+object.width+0.5))&&Player.isMovingDown){ isInCollision=true; level.moveMapRight(); } and in the level's update code: if(!Player.isInCollision) Player.manageMovementInput(map, i); However, this method still has some errors. For example, when hitting the object from the right, the player will move up and to the left, clipping through the object and becoming stuck inside its hitbox. If there is a more effective way of handling this, any advice would be greatly appreciated.

  Read the article

• Jump and run HTML5 Game Framework

  - by user1818924

  We're developing a jump and run game with HTML5 and JavaScript and have to build an own game framework for this. Here we have some difficulties and would like to ask you for some advice: we have a "Stage" object, which represents the root of our game and is a global div-wrapper. The stage can contain multiple "Scenes", which are also div-elements. We would implement a Scene for the playing task, for pause, etc. and switch between them. Each scene can therefore contain multiple "Layers", representing a canvas. These Layer contain "ObjectEntities", which represent images or other shapes like rectangles, etc. Each Objectentity has its own temporaryCanvas, to be able to draw images for one entity, whereas another contains a rectangle. We set an activeScene in our Stage, so when the game is played, just the active scene is drawn. Calling activeScene.draw(), calls all sublayers to draw, which draw their entities (calling drawImage(entity.canvas)). But is this some kind of good practive? Having multiple canvas to draw? Each gameloop every layer-context is cleared and drawn again. E.g. we just have a still Background-Layer, … wouldn't it be more useful to draw this once and not to clear it everytime and redraw it? Or should we use a global canvas for example in the Stage and just use this canvas to draw? But we thought this would be to expensive... Other question: Do you have any advice how we could dive into implementing an own framework? Most stuff we find online relies on existing frameworks or they just implement their game without building a framework.

  Read the article

• How far to go with Domain Driven Design?

  - by synti

  I've read a little about domain driven design and the usage of a rich domain model, as described by Martin Fowler, and I've decided to put it in practice in a personal project, instead of using transaction scripts. Everything went fine until UI implementation started. The thing is some views will use rich components that are backed up by unusual models and, thus, I must transform the domain model into what is used by those components. And that transformation is specially "complex" in the view-to-domain portion, up to the point that some business logic is involved. Wich brings me to the questioning: where should I do these adaptations? So far I've got the following conclusions: Doing it in the presentation layer is good because, well, if that layer imposes restrictions in it's model, then it should be the one to handle them. But it's bad because there'll be some business leakage. If I do it on the services objects (controllers, actions, whatever), then it'd be good because there won't be any change to the domain API just because of presentation layer, but it's bad because then I'd have transaction scripts, wich is not the intended design. Finally, if I do it on the domain model, there'd be no leakage of business logic at all. But in the future I could expect an explosion of the API into a series of methods designed just to handle that view-model <- domain-model adaptation. I hope I could make myself clear on this.

  Read the article

• Implementing MVC pattern in SWT application

  - by Pradeep Simha

  I am developing an SWT application (it's basically an Eclipse plugin, so I need to use SWT). Currently my design is as follows: Model: In model, I have POJOs which represents the actual fields in views. View: It is a dumb layer, it contains just UI and contains no logic (not even event handlers) Controller: It acts as a mediator b/w those two layers. Also it is responsible for creating view layer, handling events etc. Basically I have created all of the controls in view as a static like this public static Button btnLogin and in controller I have a code like this: public void createLoginView(Composite comp) { LoginFormView.createView(comp); //This createView method is in view layer ie LoginFormView LoginFormView.btnLogin.addSelectionListener(new SelectionListener() { //Code goes here }); } Similalrly I have done for other views and controls. So that in main class and other classes I am calling just createLoginView of controller. I am doing similar thing for other views. So my question, is what I am doing is correct? Is this design good? Or I should have followed any other approach. Since I am new to SWT and Eclipse plugin development (basically I am Java EE developer having 4+ years of exp). Any tips/pointers would be appreciated.

  Read the article

• Finally! Entity Framework working in fully disconnected N-tier web app

  - by oazabir

  Entity Framework was supposed to solve the problem of Linq to SQL, which requires endless hacks to make it work in n-tier world. Not only did Entity Framework solve none of the L2S problems, but also it made it even more difficult to use and hack it for n-tier scenarios. It’s somehow half way between a fully disconnected ORM and a fully connected ORM like Linq to SQL. Some useful features of Linq to SQL are gone – like automatic deferred loading. If you try to do simple select with join, insert, update, delete in a disconnected architecture, you will realize not only you need to make fundamental changes from the top layer to the very bottom layer, but also endless hacks in basic CRUD operations. I will show you in this article how I have  added custom CRUD functions on top of EF’s ObjectContext to make it finally work well in a fully disconnected N-tier web application (my open source Web 2.0 AJAX portal – Dropthings) and how I have produced a 100% unit testable fully n-tier compliant data access layerfollowing the repository pattern. http://www.codeproject.com/KB/linq/ef.aspx In .NET 4.0, most of the problems are solved, but not all. So, you should read this article even if you are coding in .NET 4.0. Moreover, there’s enough insight here to help you troubleshoot EF related problems. You might think “Why bother using EF when Linq to SQL is doing good enough for me.” Linq to SQL is not going to get any innovation from Microsoft anymore. Entity Framework is the future of persistence layer in .NET framework. All the innovations are happening in EF world only, which is frustrating. There’s a big jump on EF 4.0. So, you should plan to migrate your L2S projects to EF soon.

  Read the article

• XNA calculate normals for linesegment

  - by Gerhman

  I am quite new to 3D graphical programming and thus far only understand that normal somehow define the direction in which a vertex faces and therefore the direction in which light is reflected. I have now idea how they are calculated though, only that they are defined by a Vector3. For a visualizer that I am creating I am importing a bunch of coordinate which represent layer upon layer of line segments. At the moment I am only using a vertex buffer and adding the start and end point of each line and then rendering a linelist. The thing is now that I need to calculate the normal for the vertices of these line segments so that I can get some realistic lighting. I have no idea how to calculate these normal but I know they all face sideways and not up or down. To calculate them all I have are the start and end positions of each line segment. The below image is a representation of what I think I need to do in the case of an example layer: The red arrows represent the normal that should be calculates, the blue text represent the coordinates of the vertices and the green numbers represent their indices. I would greatly appreciate it if someone could please explain to me how I should calculate these normal.

  Read the article

• iOS chat application design, sending/relaying the message over to the end user

  - by AyBayBay

  I have a design question. Let us say you were tasked with building a chat application, specifically for iOS (iOS Chat Application). For simplicity let us say you can only chat with one person at a time (no group chat functionality). How then can you achieve sending a message directly to an end user from phone A to phone B? Obviously there is a web service layer with some API calls. One of the API calls available will be startChat(). After starting a chat, when you send a message, you make another async call, let us call it sendMessage() and pass in a string with your message. Once it goes to the web service layer, the message gets stored in a database. Here is where I am currently stuck. After the message gets sent to the web service layer, how do we then achieve sending/relaying the message over to the end user? Should the web server send out a message to the end user and notify them, or should each client call a receiveMessage() method periodically, and if the server side has some info for them it can then respond with that info? Finally, how can we handle the case in which the user you are trying to send a message to is offline? How can we make sure the end user gets the packet when he moves back to an area with signal?

  Read the article

• Is using multiple canvas objects a good practice?

  - by user1818924

  We're developing a jump and run game with HTML5 and JavaScript and have to build an own game framework for this. Here we have some difficulties and would like to ask you for some advice: We have a "Stage" object, which represents the root of our game and is a global div-wrapper. The stage can contain multiple "Scenes", which are also div-elements. We would implement a Scene for the playing task, for pause, etc. and switch between them. Each scene can therefore contain multiple "Layers", representing a canvas. These Layer contain "ObjectEntities", which represent images or other shapes like rectangles, etc. Each Objectentity has its own temporaryCanvas, to be able to draw images for one entity, whereas another contains a rectangle. We set an activeScene in our Stage, so when the game is played, just the active scene is drawn. Calling activeScene.draw(), calls all sublayers to draw, which draw their entities (calling drawImage(entity.canvas)). But is this some kind of good practice? Having multiple canvas to draw? Each game loop every layer-context is cleared and drawn again. E.g. we just have a still Background-Layer, … wouldn't it be more useful to draw this once and not to clear it every time and redraw it? Or should we use a global canvas for example in the Stage and just use this canvas to draw? But we thought this would be to expensive...

  Read the article

• Nifty GUI Layout

  - by Jason Crosby

  I am new to JME3 game engine but I know Android XML GUI layouts pretty good. I have a simple layout here and I cant figure out what is wrong. Here is my XML code: <?xml version="1.0" encoding="UTF-8"?> <nifty xmlns="http://nifty-gui.sourceforge.net/nifty-1.3.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://nifty-gui.sourceforge.net/nifty-1.3.xsd http://nifty-gui.sourceforge.net/nifty-1.3.xsd"> <useControls filename="nifty-default-controls.xml" /> <useStyles filename="nifty-default-styles.xml" /> <screen id="start" controller="com.jasoncrosby.game.farkle.gui.MenuScreenGui"> <layer id="layer" backgroundColor="#66CD00" childLayout="center"> <panel id="panel" align="center" valign="center" childLayout="center" visibleToMouse="true"> <image filename="Textures/wood_floor.png" height="95%" width="95%"/> <panel id="panel" align="center" valign="center" childLayout="center" visibleToMouse="true"> <text text="test" font="Interface/Fonts/Eraser.fnt"></text> </panel> </panel> </layer> </screen> Everything works good until I get to displaying the text. I have tried different alignments and tried moving the text into different panels but no matter what I do the text is never in the center of the screen. Its always in the upper left corner so far I can only see the lower right part of the text. I'm sure it has to be something simple but since I'm new to this I'm not noticing anything. Thanks for the help in advance.

  Read the article

• Explicitly pass context object versus injecting with IoC

  - by SonOfPirate

  I have a layered service application where the service layer delegates operations into the domain layer for execution. Many of these operations need to know the context under which they are operation. (The context included the identity of the current user, culture information, etc. received from the caller.) For example, I have an API method that returns a list of announcements. The list is based on the current user's role and each announcement is localized to their culture. The API is a thin-facade that delegates to an Application Service in my domain layer. The Application Service method obviously needs to know the context of the current request/operation as another call to the same API from another user should result in a different list. Within this method, we also have logging that uses some of the context information so we a clear understanding of the context when the operation was performed (this is especially useful if something goes wrong.) While this is a contrived example, in the real world, my Application Services will coordinate operations with many collaborative components, any number of them also needing the context information. My choice is to pass the context to the Application Service which would then pass it with any calls to collaborators or have the IoC container satisfy the dependency the Application Service and any collaborators have on the context. I am wondering if it is considered good/bad, best practices/code smell, etc. if I pass the context object as a parameter to the domain methods or if injecting the context via an IoC container is preferred. (EDIT: I should mention that the context object is instantiated per-request.)

  Read the article

• Models, collections...and then what? Processes?

  - by Dan

  I'm a LAMP-stack dev who's been more on the JavaScript side the last few years and really enjoying the Model + Collection approach to data entities that BackboneJS, etc. uses. It's helped me organize my code in such a way that it is extremely portable, keeping all my properties and methods in the scope (model, collection, etc.) in which they apply. One thing that keeps bugging me though is how to organize the next level up, the 'process layer' as you might call it, that can potentially operate on instances of either models or collections or whatever else. Where should methods like find() (which returns a collection) and create() (which returns a model) reside? I know some people would put a create() in the Collection prototype, but while a collection operates on models I don't think it's exactly right to create them. And while a find() would return a collection I don't think it correct to have that action within the collection prototype itself (it should be a layer up). Can anyone offer some examples of any patterns that employ some kind of OOP-friendly 'process' layer? I'm sorry if this is a fairly well-known discussion but I'm afraid I can't seem to find the terminology to search for.

  Read the article

• Anemic Domain Model, Business Logic and DataMapper (PHP)

  - by sunwukung

  I've implemented a rudimentary ORM layer based on DataMapper (I don't want to use a full blown ORM like Propel/Doctrine - for anything beyond simple fetch/save ops I prefer to access the data directly layer using a SQL abstraction layer). Following the DataMapper pattern, I've endeavoured to keep all persistence operations in the Mapper - including the location of related entities. My Entities have access to their Mapper, although I try not to call Mapper logic from the Entity interface (although this would be simple enough). The result is: // get a mapper and produce an entity $ProductMapper = $di->get('product_mapper'); $Product = $ProductMapper->find('[email protected]','email'); //.. mutaute some values.. save $ProductMapper->save($Product) // uses __get to trigger relation acquisition $Manufacturer = $Product->manufacturer; I've read some articles regarding the concept of an Anemic Domain model, i.e. a Model that does not contain any "business logic". When demonstrating the sort of business logic ideally suited to a Domain Model, however, acquiring related data items is a common example. Therefore I wanted to ask this question: Is persistence logic appropriate in Domain Model objects?

  Read the article

• Transparent JPanel, Canvas background in JFrame

  - by Andy Tyurin

  I wanna make canvas background and add some elements on top of it. For this goal I made JPanel as transparent container with setOpaque(false) and added it as first of JFrame container, then I added canvas with black background (in future I wanna set animation) to JFrame as second element. But I can't undestand why i see grey background, not a black. Any suggestions? public class Game extends JFrame { public Container container; //Game container with components public Canvas backgroundLayer; //Background layer of a game public JPanel elementsLayer; //elements panel (top of backgroundLayer), holds different elements private Dimension startGameDimension = new Dimension(800,600); //start game dimension public Game() { //init main window super("Astra LaserForces"); setSize(startGameDimension); setBackground(Color.CYAN); container=getContentPane(); container.setLayout(null); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //init jpanel elements layer elementsLayer=new JPanel(); elementsLayer.setSize(startGameDimension); elementsLayer.setBackground(Color.BLUE); elementsLayer.setOpaque(false); container.add(elementsLayer); //init canvas background layer backgroundLayer = new Canvas(); backgroundLayer.setSize(startGameDimension); backgroundLayer.setBackground(Color.BLACK); //set default black color container.add(backgroundLayer); } //start game public void start() { setVisible(true); } //create new instance of game and start it public static void main(String[] args) { new Game().start(); } }

  Read the article

• How do I properly center Nifty GUI elements on screen?

  - by Jason Crosby

  I am new to JME3 game engine but I know Android XML GUI layouts pretty good. I have a simple layout here and I cant figure out what is wrong. Here is my XML code: <?xml version="1.0" encoding="UTF-8"?> <nifty xmlns="http://nifty-gui.sourceforge.net/nifty-1.3.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://nifty-gui.sourceforge.net/nifty-1.3.xsd http://nifty-gui.sourceforge.net/nifty-1.3.xsd"> <useControls filename="nifty-default-controls.xml" /> <useStyles filename="nifty-default-styles.xml" /> <screen id="start" controller="com.jasoncrosby.game.farkle.gui.MenuScreenGui"> <layer id="layer" backgroundColor="#66CD00" childLayout="center"> <panel id="panel" align="center" valign="center" childLayout="center" visibleToMouse="true"> <image filename="Textures/wood_floor.png" height="95%" width="95%"/> <panel id="panel" align="center" valign="center" childLayout="center" visibleToMouse="true"> <text text="test" font="Interface/Fonts/Eraser.fnt"></text> </panel> </panel> </layer> </screen> Everything works well until I get to displaying the text. I have tried different alignments and tried moving the text into different panels but no matter what I do the text is never in the center of the screen. It's always in the upper left corner, so far I can only see the lower right part of the text. How can I center the text element in the center of the screen?

  Read the article

• Clustering Strings on the basis of Common Substrings

  - by pk188

  I have around 10000+ strings and have to identify and group all the strings which looks similar(I base the similarity on the number of common words between any two give strings). The more number of common words, more similar the strings would be. For instance: How to make another layer from an existing layer Unable to edit data on the network drive Existing layers in the desktop Assistance with network drive In this case, the strings 1 and 3 are similar with common words Existing, Layer and 2 and 4 are similar with common words Network Drive(eliminating stop word) The steps I'm following are: Iterate through the data set Do a row by row comparison Find the common words between the strings Form a cluster where number of common words is greater than or equal to 2(eliminating stop words) If number of common words<2, put the string in a new cluster. Assign the rows either to the existing clusters or form a new one depending upon the common words Continue until all the strings are processed I am implementing the project in C#, and have got till step 3. However, I'm not sure how to proceed with the clustering. I have researched a lot about string clustering but could not find any solution that fits my problem. Your inputs would be highly appreciated.

  Read the article

• Need some critique on .NET/WCF SOA architecture plan

  - by user998101

  I am working on a refactoring of some services and would appreciate some critique on my general approach. I am working with three back-end data systems and need to expose an authenticated front-end API over http binding, JSON, and REST for internal apps as well as 3rd party integration. I've got a rough idea below that's a hybrid of what I have and where I intend to wind up. I intend to build guidance extensions to support this architecture so that devs can build this out quickly. Here's the current idea for our structure: Front-end WCF routing service (spread across multiple IIS servers via hardware load balancer) Load balancing of services behind routing is handled within routing service, probably round-robin One of the services will be a token Multiple bindings per-service exposed to address JSON, REST, and whatever else comes up later All in/out is handled via POCO DTOs Use unity to scan for what services are available and expose them The front-end services behind the routing service do nothing more than expose the API and do conversion of DTO<-Entity Unity inject service implementation to allow mocking automapper for DTO/Entity conversion Invoke WF services where response required immediately Queue to ESB for async WF -- ESB will invoke WF later Business logic WF layer Expose same api as front-end services Implement business logic Wrap transaction context where needed Call out to composite/atomic services Composite/Atomic Services Exposed as WCF One service per back-end system Standard atomic CRUD operations plus composite operations Supports transaction context The questions I have are: Are the separation of concerns outlined above beneficial? Current thought is each layer below is its own project, except the backend stuff, where each system gets one project. The project has a servicehost and all the services are under a services folder. Interfaces live in a separate project at each layer. DTO and Entities are in two separate projects under a shared folder. I am currently planning to build dedicated services for shared functionality such as logging and overload things like tracelistener to call those services. Is this a valid approach? Any other suggestions/comments?

  Read the article

• Why is the camera not following the player? [on hold]

  - by Homer_Simpson

  I use the following code to create Parallax Scrolling: http://www.david-gouveia.com/portfolio/2d-camera-with-parallax-scrolling-in-xna/ Parallax Scrolling is working but I don't know how to focus the camera on the player. If the player moves, then the camera doesn't follow the player. The player leaves the screen when I'm moving it. I use the following code(as described in the tutorial), but it's not working: // Updates my camera to lock on the character _camera.LookAt(player.Playerposition); What can I do so that the player is always in the center of the screen/camera? My player class: public class Player { Texture2D Playertex; public Vector2 Playerposition = new Vector2(400, 240); private Game1 game1; public Player(Game1 game) { game1 = game; } public void Load(ContentManager content) { Playertex = content.Load<Texture2D>("8bitmario"); TouchPanel.EnabledGestures = GestureType.HorizontalDrag; } public void Update(GameTime gameTime) { while (TouchPanel.IsGestureAvailable) { GestureSample gs = TouchPanel.ReadGesture(); switch (gs.GestureType) { case GestureType.HorizontalDrag: Playerposition.X += 3f; break; } } } public void Render(SpriteBatch batch) { batch.Draw(Playertex, new Vector2(Playerposition.X - Playertex.Width / 2, Playerposition.Y - Playertex.Height / 2), Color.White); } } In Game1, I update the player and camera class: protected override void Update(GameTime gameTime) { // Updates my character's position player.Update(gameTime); // Updates my camera to lock on the character _camera.LookAt(player.Playerposition); base.Update(gameTime); } protected override void Draw(GameTime gameTime) { GraphicsDevice.Clear(Color.CornflowerBlue); foreach (Layer layer in _layers) layer.Draw(spriteBatch); spriteBatch.Begin(SpriteSortMode.Deferred, null, null, null, null, null, _camera.GetViewMatrix(new Vector2(0.0f, 0.0f))); player.Render(spriteBatch); spriteBatch.End(); base.Draw(gameTime); }

  Read the article

• open layers LineString not working

  - by AlexS

  Sorry to bother you guys, but I'm stuck with his problem for half a day. I want to draw poly line in OpenLayers using LineString object, so I've copied the example from documentation. It runs ok but i can't see the line on the screen Code looks like this <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> var map; var lineLayer ; var points; var style; var polygonFeature function test() { lineLayer = new OpenLayers.Layer.Vector("Line Layer"); style = { strokeColor: '#0000ff', strokeOpacity: 1, strokeWidth: 10 }; map.addLayer(lineLayer); points = new Array(); points[0] =new OpenLayers.LonLat(-2.460181,27.333984 ).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());; points[1] = new OpenLayers.LonLat(-3.864255,-22.5 ).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());; var linear_ring = new OpenLayers.Geometry.LinearRing(points); polygonFeature = new OpenLayers.Feature.Vector( new OpenLayers.Geometry.Polygon([linear_ring]), null, style); lineLayer.addFeatures([polygonFeature]); alert("1"); } function initialize() { map = new OpenLayers.Map ("map_canvas", { controls:[ new OpenLayers.Control.Navigation(), new OpenLayers.Control.PanZoomBar(), new OpenLayers.Control.LayerSwitcher(), new OpenLayers.Control.Attribution()], maxExtent: new OpenLayers.Bounds(-20037508.34,-20037508.34,20037508.34,20037508.34), maxResolution: 156543.0399, numZoomLevels: 19, units: 'm', projection: new OpenLayers.Projection("EPSG:900913"), displayProjection: new OpenLayers.Projection("EPSG:4326") }); // Define the map layer // Here we use a predefined layer that will be kept up to date with URL changes layerMapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik"); map.addLayer(layerMapnik); var lonLat = new OpenLayers.LonLat(0, 0).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject()); map.zoomTo(3); map.setCenter(lonLat, 19); test(); } </head> <body onload="initialize()" > <div id="map_canvas" style="width: 828px; height: 698px"></div> I'm sure I'm missing some parameter in creation of map or something but I really can't figure which one.

  Read the article

• how to find maximum frequent item sets from large transactional data file

  - by ANIL MANE

  Hi, I have the input file contains large amount of transactions like Transaction ID Items T1 Bread, milk, coffee, juice T2 Juice, milk, coffee T3 Bread, juice T4 Coffee, milk T5 Bread, Milk T6 Coffee, Bread T7 Coffee, Bread, Juice T8 Bread, Milk, Juice T9 Milk, Bread, Coffee, T10 Bread T11 Milk T12 Milk, Coffee, Bread, Juice i want the occurrence of every unique item like Item Name Count Bread 9 Milk 8 Coffee 7 Juice 6 and from that i want an a fp-tree now by traversing this tree i want the maximal frequent itemsets as follows The basic idea of method is to dispose nodes in each “layer” from bottom to up. The concept of “layer” is different to the common concept of layer in a tree. Nodes in a “layer” mean the nodes correspond to the same item and be in a linked list from the “Head Table”. For nodes in a “layer” NBN method will be used to dispose the nodes from left to right along the linked list. To use NBN method, two extra fields will be added to each node in the ordered FP-Tree. The field tag of node N stores the information of whether N is maximal frequent itemset, and the field count’ stores the support count information in the nodes at left. In Figure, the first node to be disposed is “juice: 2”. If the min_sup is equal to or less than 2 then “bread, milk, coffee, juice” is a maximal frequent itemset. Firstly output juice:2 and set the field tag of “coffee:3” as “false” (the field tag of each node is “true” initially ). Next check whether the right four itemsets juice:1 be the subset of juice:2. If the itemset one node “juice:1” corresponding to is the subset of juice:2 set the field tag of the node “false”. In the following process when the field tag of the disposed node is FALSE we can omit the node after the same tagging. If the min_sup is more than 2 then check whether the right four juice:1 is the subset of juice:2. If the itemset one node “juice:1” corresponding to is the subset of juice:2 then set the field count’ of the node with the sum of the former count’ and 2 After all the nodes “juice” disposed ,begin to dispose the node “coffee:3”. Any suggestions or available source code, welcome. thanks in advance

  Read the article

• can not access MovieClip properties in flashDevelop

  - by numerical25

  I know there is something I am doing wrong. In my controls I have keydown events that control my hero. As of right now, I am trying to rotate my hero but he refuses to turn . Below is my Hero Class, my control class, and gameobject class. pretty much all the classes associate with the controls class. package com.Objects { import com.Objects.GameObject; /** * ... * @author Anthony Gordon */ [Embed(source='../../../bin/Assets.swf', symbol='OuterRim')] public class Hero extends GameObject { public function Hero() { } } } Here is my Controls class. This is the class where I am trying to rotate my hero but he doesnt. The keydown event does work cause I trace it. package com.Objects { import com.Objects.Hero; import flash.events.*; import flash.display.MovieClip; /** * ... * @author Anthony Gordon */ public class Controls extends GameObject { private var aKeyPress:Array; public var ship:Hero; public function Controls(ship:Hero) { this.ship = ship; IsDisplay = false; aKeyPress = new Array(); engine.sr.addEventListener(KeyboardEvent.KEY_DOWN, keyDownListener); engine.sr.addEventListener(KeyboardEvent.KEY_UP,keyUpListener); } private function keyDownListener(e:KeyboardEvent):void { //trace("down e.keyCode=" + e.keyCode); aKeyPress[e.keyCode] = true; trace(e.keyCode); } private function keyUpListener(e:KeyboardEvent):void { //trace("up e.keyCode=" + e.keyCode); aKeyPress[e.keyCode]=false; } override public function UpdateObject():void { Update(); } private function Update():void { if (aKeyPress[37])//Key press left ship.rotation += 3,trace(ship.rotation ); ///DOESNT ROtate }//End Controls } } Here is GameObject Class package com.Objects { import com.Objects.Engine; import com.Objects.IGameObject; import flash.display.MovieClip; /** * ... * @author Anthony Gordon */ public class GameObject extends MovieClip implements IGameObject { private var isdisplay:Boolean = true; private var garbage:Boolean; public static var engine:Engine; public var layer:Number = 0; public function GameObject() { } public function UpdateObject():void { } public function GarbageCollection():void { } public function set Garbage(garb:Boolean):void { garbage = garb; } public function get Garbage():Boolean { return garbage } public function get IsDisplay():Boolean { return isdisplay; } public function set IsDisplay(display:Boolean):void { isdisplay = display; } public function set Layer(l:Number):void { layer = l; } public function get Layer():Number { return layer } } }

  Read the article

• Animating and moving a draggable shape in KineticJS's dragend event

  - by user3712941

  I would like to animate moving a draggable shape to another position after it has been dragged in KineticJS. I would like to animate the movement of the shape over a period of time (for example, over 1 second). For example, I create a draggable shape and save its initial xy coordinates. I register a "dragend" event on this shape. Then, I drag the shape to a new position. When I release the drag, the dragend event is called. In that event function, I want to animate/ease the shape back to its original position. See my JSFiddle for a complete example: DragSample. (function () { //create variables at global scope var layer; var stage; var triangle; var triangleLastX = 190; var triangleLastY = 120; var tween; function initTween() { tween = new Kinetic.Tween({ node: triangle, duration: 1, easing: Kinetic.Easings.EaseInOut, x: 400, y: 200, }); } this.init = function () { layer = new Kinetic.Layer(); stage = new Kinetic.Stage({ container: 'container', width: 800, height: 600 }); triangle = new Kinetic.RegularPolygon({ x: 190, y: 120, sides: 3, radius: 80, fill: '#00D2FF', stroke: 'black', strokeWidth: 4, draggable: true }); triangle.on('dragstart', function () { triangleLastX = triangle.attrs.x; triangleLastY = triangle.attrs.y; }); triangle.on('dragend', function () { tween.play(); stage.draw(); }); layer.add(triangle); stage.add(layer); initTween (); } window.onload = init(); })(); I have tried doing this several ways. The last way I attempted to do this was using Kinetic's Tween(), however, when I play this Tween from the dragend event handler function, it moves the shape back to its original position immediately (i.e. the position when the drag started), then applies the Tween. Is there any way to achieve animating the movement of a draggable shape to its original position (or any other position for that matter) in dragend using KineticJS?

  Read the article

• Linux-Containers — Part 1: Overview

  - by Lenz Grimmer

  "Containers" by Jean-Pierre Martineau (CC BY-NC-SA 2.0). Linux Containers (LXC) provide a means to isolate individual services or applications as well as of a complete Linux operating system from other services running on the same host. To accomplish this, each container gets its own directory structure, network devices, IP addresses and process table. The processes running in other containers or the host system are not visible from inside a container. Additionally, Linux Containers allow for fine granular control of resources like RAM, CPU or disk I/O. Generally speaking, Linux Containers use a completely different approach than "classicial" virtualization technologies like KVM or Xen (on which Oracle VM Server for x86 is based on). An application running inside a container will be executed directly on the operating system kernel of the host system, shielded from all other running processes in a sandbox-like environment. This allows a very direct and fair distribution of CPU and I/O-resources. Linux containers can offer the best possible performance and several possibilities for managing and sharing the resources available. Similar to Containers (or Zones) on Oracle Solaris or FreeBSD jails, the same kernel version runs on the host as well as in the containers; it is not possible to run different Linux kernel versions or other operating systems like Microsoft Windows or Oracle Solaris for x86 inside a container. However, it is possible to run different Linux distribution versions (e.g. Fedora Linux in a container on top of an Oracle Linux host), provided it supports the version of the Linux kernel that runs on the host. This approach has one caveat, though - if any of the containers causes a kernel crash, it will bring down all other containers (and the host system) as well. For example, Oracle's Unbreakable Enterprise Kernel Release 2 (2.6.39) is supported for both Oracle Linux 5 and 6. This makes it possible to run Oracle Linux 5 and 6 container instances on top of an Oracle Linux 6 system. Since Linux Containers are fully implemented on the OS level (the Linux kernel), they can be easily combined with other virtualization technologies. It's certainly possible to set up Linux containers within a virtualized Linux instance that runs inside Oracle VM Server for Oracle VM Virtualbox. Some use cases for Linux Containers include: Consolidation of multiple separate Linux systems on one server: instances of Linux systems that are not performance-critical or only see sporadic use (e.g. a fax or print server or intranet services) do not necessarily need a dedicated server for their operations. These can easily be consolidated to run inside containers on a single server, to preserve energy and rack space. Running multiple instances of an application in parallel, e.g. for different users or customers. Each user receives his "own" application instance, with a defined level of service/performance. This prevents that one user's application could hog the entire system and ensures, that each user only has access to his own data set. It also helps to save main memory — if multiple instances of a same process are running, the Linux kernel can share memory pages that are identical and unchanged across all application instances. This also applies to shared libraries that applications may use, they are generally held in memory once and mapped to multiple processes. Quickly creating sandbox environments for development and testing purposes: containers that have been created and configured once can be archived as templates and can be duplicated (cloned) instantly on demand. After finishing the activity, the clone can safely be discarded. This allows to provide repeatable software builds and test environments, because the system will always be reset to its initial state for each run. Linux Containers also boot significantly faster than "classic" virtual machines, which can save a lot of time when running frequent build or test runs on applications. Safe execution of an individual application: if an application running inside a container has been compromised because of a security vulnerability, the host system and other containers remain unaffected. The potential damage can be minimized, analyzed and resolved directly from the host system. Note: Linux Containers on Oracle Linux 6 with the Unbreakable Enterprise Kernel Release 2 (2.6.39) are still marked as Technology Preview - their use is only recommended for testing and evaluation purposes. The Open-Source project "Linux Containers" (LXC) is driving the development of the technology behind this, which is based on the "Control Groups" (CGroups) and "Name Spaces" functionality of the Linux kernel. Oracle is actively involved in the Linux Containers development and contributes patches to the upstream LXC code base. Control Groups provide means to manage and monitor the allocation of resources for individual processes or process groups. Among other things, you can restrict the maximum amount of memory, CPU cycles as well as the disk and network throughput (in MB/s or IOP/s) that are available for an application. Name Spaces help to isolate process groups from each other, e.g. the visibility of other running processes or the exclusive access to a network device. It's also possible to restrict a process group's access and visibility of the entire file system hierarchy (similar to a classic "chroot" environment). CGroups and Name Spaces provide the foundation on which Linux containers are based on, but they can actually be used independently as well. A more detailed description of how Linux Containers can be created and managed on Oracle Linux will be explained in the second part of this article. Additional links related to Linux Containers: OTN Article: The Role of Oracle Solaris Zones and Linux Containers in a Virtualization Strategy Linux Containers on Wikipedia - Lenz Grimmer Follow me on: Personal Blog | Facebook | Twitter | Linux Blog |

  Read the article

• Deploying an ADF Secure Application using WLS Console

  - by juan.ruiz

  Last week I worked on a requirement from a customer that wanted to understand how to deploy to WLS an application with ADF Security without using JDeveloper. The main question was, what steps where needed in order to set up Enterprise Roles, Security Policies and Application Credentials. In this entry I will explain the steps taken using JDeveloper 11.1.1.2. 0 Requirements: Instead of building a sample application from scratch, we can use Andrejus 's sample application that contains all the security pieces that we need. Open and migrate the project. Also make sure you adjust the database settings accordingly. Creating the EAR file Review the Security settings of the application by going into the Application -> Secure menu and see that there are two enterprise roles as well as the ADF Policies enforcing security on the main page. Make sure the Application Module uses the Data Source instead of JDBC URL for its connection type, also take note of the data source name - in my case I have: java:comp/env/jdbc/HrDS To facilitate the access to this application once we deploy it. Go to your ViewController project properties select the Java EE Application category and give it a meaningful name to the context root as well to the Application Name Go to the ADFSecurityWL Application properties -> Deployment  and create a new EAR deployment profile. Uncheck the Auto generate and Synchronize weblogic-jdbc.xml Descriptors During Deployment Deploy the application as an EAR file. Deploying the Application to WLS using the WLS Console On the WLS console create a JNDI data source. This is the part that I found more tricky of the hole exercise given that the name should match the AM's data source name, however the naming convention that worked for me was jdbc.HrDS Now, deploy the application manually by selecting deployments ->Install look for the EAR and follow the default steps. If this is the firs time you deploy the application, once the deployment finishes you will be asked to Activate Changes on the domain, these changes contain all the security policies and application roles insertion into the WLS instance. Creating Roles and User Groups for the Application To finish the after-deployment set up, we need to create the groups that are the equivalent of the Enterprise Roles of ADF Security. For our sample we have two Enterprise Roles employeesApplication and managersApplication. After that, we create the application users and assign them into their respective groups. Now we can run the application and test the security constraints

  Read the article

• INETA Community Leadership Summit

  - by Scott Spradlin

  INETA Community Leadership Summit will be taking place on Sunday June 6th at 1PM at Tech·Ed North America in New Orleans. INETA is hosting a free Community Leadership Summit in New Orleans at the Ernest N. Morial Convention Center on Sunday June 6th at 1:00 PM prior to the start of Tech·Ed 2010. The summit is open to Community Leaders from the area, as well as those attending Tech·Ed from across the country and around the world. It is an excellent opportunity for exchanging information and ideas. If you are a user group leader, or are involved in the leadership, planning, promotion, or day-to-day operations of a user group community, this event is for YOU! The summit is an open forum to share ideas, discuss common challenges, and gain from the experience of other leaders. INETA Community Leadership summits are part of an ongoing effort by INETA to create, improve and share resources designed to strengthen individual user groups and the community. This meeting will be the perfect opportunity to meet leaders from other groups, benefit from their success stories, and expand your network of contacts.   Quick FAQs Who can attend? Any leader or volunteer of any INETA User Group. Do I need to be attending Tech·Ed? No, you do NOT need to purchase a pass for Tech·Ed to attend the Leadership Summit. What does it cost to attend? There is NO cost to attend summit, but the knowledge that will be available about User Groups will be priceless. I want to help out, who do I contact? Send an email to [email protected] if you are interested. I want to attend, where do I register? We are putting together a registration link now, it will be published in a future newsletter and on the website. What will the format of the summit be? The summit will be like our Birds of a Feather Sessions but focused on User Group topics. Moderators will be armed with some broad topics to kick off the conversation, however the real value of these sessions is getting the chance to learn from each other. What topics will be covered? We are thinking of focusing on 4 areas: Running a User Group, Effective Content and Presenters, User Group Promotion and Developing Partnerships. However the agenda is yours! If there is a topic you want to see covered, or a topic that you would like to lead then email  [email protected]. Technorati Tags: conference

  Read the article

< Previous Page | 50 51 52 53 54 55 56 57 58 59 60 61  | Next Page >