Search Results

Search found 22308 results on 893 pages for 'floating point'.

Page 478/893 | < Previous Page | 474 475 476 477 478 479 480 481 482 483 484 485  | Next Page >

• Traveling Salesman in polynomial time

  - by Andres

  Problem Description: Write a program in any language with the shortest number of characters that solves the following problem: Given a collection of cities and the cost of travel between each pair of them, find the cheapest way of visiting all of the cities and returning to your starting point. All solutions must take at most polynomial time. Input will be in the form of a text file named simply "i". The text file will contain data in the following format: city1# city2# cost$ cityA# cityB# cost$ ... Each element in the file is separated with a space, and there is a newline at the end of every line. Code count does not include whitespace. Solutions that take longer than polynomial time to find will not be accepted

  Read the article

• Google index vs asp.net url routing

  - by vani

  I've made the change from querystring asp.net webforms application to an url routing one. Now I'm trying to let google know that there's a new set of urls to be aware of. The G has indexed 133 out of 179 new urls sent in sitemap.xml, but the site:mistral.hr command returns the old querystring version of the links. This could partly be so because I left the functionality of the old querystring version of the site(for backwards compatibility), and haven't done any 301 redirects(nor do I know how to achieve them in my shared hosting account). The old querystring and the new url routing both point to the same Default.aspx page.

  Read the article

• Tomcat custom classloader in Liferay principles

  - by lisak

  When custom class loader in webapp context file is used and the context is being initialized and started, the custom classloader is just a substitution for the default webapp class loader, right ? But what are the consequences of doing this? Because, for instance, in Liferay portal an application can use custom PortalClassLoader, which just extends webapp class loader and does nothing else, it's the same class, no modifications at all. And I didn't find any following initializations like repository location changes etc. The point is, that the PortalClassLoader provides the webapp with an access to the ROOT portal context, which AFAIK doesn't use PortalClassLoader, according to debugger.

  Read the article

• Base URL in ASP.net Master Pages with virtual Directories

  - by Ian

  Hi All, I have an ASP.net master page. In this master, I have all my css and javascript files defined. I also have a few images and a few buttons and hyperlinks. All the urls are all declared as relative ie "/scripts/ian.js" Everything works fine if this site is the root website, but I need it to work in a virtual directory. My problem is when I place this website in a virtual directory under a root site, all my links are pointing to the root site. so my links point to www.root.com/scripts/ian.js but it should be pointing to www.root.com/virtualDir/scripts/ian.js I thought the Base Href tag in the header would help, but so far it does not seem to be helping in anyway. All the links are still pointing to the root website when i hover over them. Any suggestions or ideas are welcome. Thanks

  Read the article

• Accessing original WordPress blog's DB from sub-blogs in network mode

  - by aendrew

  I'm helping with a university radio station website that runs WordPress and was recently switched over to Network (Multi-site/multi-user) mode by myself. The setup is as such: The parent site (www.stationID.com) runs a bunch of custom-built plugins to construct things like the show schedule calendar, the "Now Playing" widget, podcast list, et cetera. The new network websites ("wiki.stationID.com", "buddypress.stationID.com" for instance) run the same template as the parent site, but it stops after rendering the first section because the widgets from point 1 grab data from the main site's database that is not available to sub-blogs. My question is: how do I get data from the main site's tables on the sub-domain sub-blogs? A related question is: how do I set the $wpdb->prefix to be the same as the parent site on the child websites without it negatively effecting how the child website pulls data from its own database? Any help would be awesome, thanks!

  Read the article

• WS-Security on iphone, is it possible?

  - by emmanuel.aquino

  Hello, I'm new here and I'm facing a problem. I need to know if it is possible to implement the WS-Security protocol with X.509 certificates on a native iPhone application. I haven't found much information on the web, except this information from Apple about security services. I just want to ask, is it possible? has it been made before?. If it is posbile, can you point me in the right direction?. Thanks in advance.

  Read the article

• Drawing a FrameworkElement within another FrameworkElement

  - by Carlo

  Hello I have this code: public class VisualCue : FrameworkElement { public List<Indicator> Indicators { get; set; } public VisualCue() { this.Indicators = new List<Indicator>(); } protected override int VisualChildrenCount { get { return this.Indicators.Count; } } protected override Visual GetVisualChild(int index) { return this.Indicators[index]; } } public class Indicator : FrameworkElement { protected override void OnRender(DrawingContext context) { context.DrawEllipse(Brushes.Red, new Pen(Brushes.Black, 2), new Point(0, 0), 10, 10); base.OnRender(context); } } And in XAML: <local:VisualCue x:Name="visualCue"> <local:VisualCue.Indicators> <local:Indicator /> </local:VisualCue.Indicators> </local:VisualCue> But the indicator doesn't get drawn. What am I missing?

  Read the article

• Find the next textarea using Jquery

  - by gnomixa

  HTML <tr id="rowId"><td><textarea class="inputTextarea"></textarea></td><td><textarea class="inputTextarea"></textarea></td></tr> <tr id="rowId2"><td><textarea class="inputTextarea"></textarea></td><td><textarea class="inputTextarea"></textarea></td></tr> <tr id="rowId3"><td><textarea class="inputTextarea"></textarea></td><td><textarea class="inputTextarea"></textarea></td></tr> Provided I know rowId, how do I find the next textarea, starting at any arbitary point. I don't mean ANY input, textarea only.

  Read the article

• filling Bugzilla quip list

  - by Gerhard

  "Walking on water and developing software from a specification are easy if both are frozen." At the top of the Bugzilla page it prints a humorous/insightful quip. I have a list that I have been building up over the years as I encounter good one liners To brighten up my fellow developers days. What source did you use to fill your Bugzilla quip list. Online I have found only one interesting list. So maybe you can share some of the good quips from your bugzilla quiplist or maybe point me towards a interesting source online "I have an infinite capacity to do more work as long as you don't mind that my quality approaches zero - Dilbert."

  Read the article

• Play! - Expecting a stack map frame in method controllers

  - by Benny

  I am using the Security module for my Play! application and had it working at one point, but for some reason I did something to make it stop working. I am getting the following errors: Execution exception VerifyError occured : Expecting a stack map frame in method controllers.Secure$Security.authentify(Ljava/lang/String;Ljava/lang/String;)Z at offset 33 In {module:secure}/app/controllers/Secure.java (around line 61) I saw the post below, but, even though I am using Java 7, it looks like Play! works ok with 7 now. I am using Play 1.2.4. VerifyError; Expecting a stack map frame in method controllers.Secure$Security.authentify Here is my Security controller: package controllers; import models.*; public class Security extends Secure.Security { public static boolean authenticate(String username, String password) { User user = User.find("byEmail", username).first(); return user != null && user.password.equals(password); } }

  Read the article

• Delphi 2010 Datasnap - Design Query

  - by Matt

  I am investigating moving a thick client SQL based Delphi application to Multi Tier thin clients, and have been looking at using Datasnap in Delphi 2010. I have worked through the White Paper written by Bob Swart and extended this further. My main question really is that I want to make the server side efficient in terms of connections and SQL Queries due to multiple queries being run and remaining open at the same time to interrogate data, can anyone point me in a direction for guidance on how to design a real world Datasnap Server application, as the demo's don't go into enough detail. Thanks Matt

  Read the article

• Interval tree algorithm that supports merging of intervals with no overlap

  - by Dave Griffiths

  I'm looking for an interval tree algorithm similar to the red-black interval tree in CLR but that supports merging of intervals by default so that there are never any overlapping intervals. In other words if you had a tree containing two intervals [2,3] and [5,6] and you added the interval [4,4], the result would be a tree containing just one interval [2,6]. Thanks Update: the use case I'm considering is calculating transitive closure. Interval sets are used to store the successor sets because they have been found to be quite compact. But if you represent interval sets just as a linked list I have found that in some situations they can become quite large and hence so does the time required to find the insertion point. Hence my interest in interval trees. Also there may be quite a lot of merging one tree with another (i.e. a set OR operation) - if both trees are large then it may be better to create a new tree using inorder walks of both trees rather than repeated insertions of each interval.

  Read the article

• How do I implement IDataServiceMetadataProvider and tell my Data Service to use that custom provider

  - by Pwninstein

  There's no obvious entry point for implementing a custom provider for an ADO.NET Data Service using IDataServiceMetadataProvider, and then telling a Data Service to use that provider. Has anyone had any luck in this area? I've tried implementing this interface on my Data Source class, but none of my breakpoints are hit. There is also no (obvious) way to set the provider from the Data Service's DataServiceConfiguration parameter passed in to the InitializeService function. Any help would be appreciated. Thanks! Data Services Providers (ADO.NET Data Services) IDataServiceMetadataProvider Members

  Read the article

• Macromedia Flash 8 - Ireland Map, on mouseover dublin, dublin expands

  - by DJDonaL3000

  Macromedia Flash 8 Question: I have a map of Ireland, just a gif, and there are several small buttons representing various point of interest around Ireland, which are scattered across the map. This part works fine. THE PROBLEM: Dublin is too small to contain all of its points of interest (approx 20). THE SOLUTION OnMouseOver Dublin, I would like Dublin to expand to perhaps 5 or 6 times its original size, and I would like to be able to have Dublins Points Of Interests now displayed within this larger dublin area, which sits on top of the Ireland map. OnMouseOut Dublin, this enlarged Dublin region now shrinks back to its original size. MY QUESTION: How do I implement Dublin?? REQUIREMENTS: 1) The expanded Dublin region shud NOT be clickable, it shud simply be a dublin image on a black background. 2) It must be possible to add additional buttons within this expanded Dublin region. Any help or assistance greatly appreciated...

  Read the article

• IIS7 URL Rewrite with dynamic subdomains.

  - by arri.me

  My goal is to implement the following scheme using the subdomain and path as attributes: Use a wildcard DNS entry that routes any subdomain to the root site: Example: *.example.com ex: http://xyz.example.com to http://example.com Next I want to rewrite the requests to point to a specific page, passing both the subdomain and the request path as attributes. Example: http://xyz123.example.com/images/header.jpg to http://example.com/get.aspx?id=xyz123&path=/images/header.jpg I've seen several questions on here regarding similar goals, but not quite the same. I'm new to using rewrite rules, so any help is appreciated. I will update this as I make progress.

  Read the article

• CodePlex Daily Summary for Tuesday, May 18, 2010

  CodePlex Daily Summary for Tuesday, May 18, 2010New ProjectsCafeControl: Supports Remote LOGIN,Remote logout ,Account Creation ,Account LOGOUT ,Temporary Login ,SMS Reported and many other features Requires .net 4.0 Cloud & Contacts: Cloud Contacts makes it easier for share your contacts.Cow connect: Ziel des Projektes Cow connect, ist es ein Tool zu schrieben das Verschiedene Datenbanken, unterschiedlicher Herdenmanagement Tool z.b: Helm Multik...DNN Simple Blog: A simplified blog module that adheres to the DNN API and is designed for a single blog author per module instance. The module also makes use of Web...dotSpatial: dotSpatial is an open source project focused on developing a core set of GIS and mapping libraries that live together harmoniously in the System.Sp...Dynamic Survey Forms - SharePoint Web Part: Create manage dynamic survey forms as SharePoint web part. Record survey score for logged user or for someone else. This project has been designed ...EDXL Sharp: EDXLSharp is a C# / .NET 3.5 implementation of the OASIS Emergency Data Exchange Language (EDXL) family of standards. This set of libraries can be...EPiServer CMS 6 Visual Studio Project Template for VB w/ Public Templates: This is a Visual Studio 2008 Project Template with will allow the creation of a EPiServer CMS 6 project set up as and with all code in Visual Basic...Functional Command Toolbar for Windows: A floating window with a text box for typing functional command and executing it. The tool supports .NET addin, functional scripting and other feat...GameFX: Silverlight Game Development LibraryLightweight Fluent Workflow: ObjectFlow is a lightweight workflow engine for creating & executing workflows. The fluent interface makes it easy to define and understand workf...LinqSpecs: A toolset for use the specification pattern in linq queries.Money Watch: Personal Finances management system written in C#, NHibernate and SQL express.Multi-screen Viewer: This viewer allows to open and view pdf file (presentation) on multiple screens. There is no need to see the file in fullscreen on each screen (mon...neo-tsql: set of stored procedures and functions for sql serverNHTrace: NHTrace is a tool for tracing sql commands executed by NHibernate with syntax highlighting.NQueue: NQueue provides an enterprise level work scheduling and execution framework and toolset that contains no single point of failure. Using a farm of s...Online Cash Manager: Online Cash Manager based on ASP .NET MVC2 VS 2010 RTM MVC 2POCO Bridge: Bridging Silverlight and full .NET apps.REngine - game engine in Silverlight: REngine makes it easier for game developers to develop games in Microsoft Silverlight. RunAs Launcher: RunAs Launcher is a C# utility that provides a GUI for running applications under different credentials. It works in situations where the built-in ...secs4net: SECS-II/GEM/HSMS implementation on .NET. This library provide easy way to communicate with SEMI standard compatible device.SharePoint Admin Dashboard: SharePoint Dashboard for admins. Allows lightening fast multiple server management. RDP doesn't scale. Manage 10 servers easier than 1 with i...Silver spring: saltSocial Map: Social map is a social network based on geograpghical informationTweetZone: TweetZone is new type of twitter client application include DATABASE in it, and it shows you STATS. This Application's cache makes it faster to acc...Yet Another Database Viewer: Yet Another Database Viewer is developed for a basic database view and editing so you don't have to install anything. It's developed in c#.New Releases3FD - Framework For Fast Development: Alpha 1: The first test release. There is still some bugs, but it is functional. The garbage collector is showing memory leaking that must be corrected in t...Ajax Toolkit for ASP.NET MVC: MvcAjaxToolkit gridext with ContextMenu and Tmpl: MvcAjaxToolkit gridext with ContextMenu and Tmpl gridext is a extension for flexigridASP.NET MVC Extensions: SP1 Preview: SP1 Preview ========= 1. Autofac support added. 2. Changed Windsor Adapter. IWindsorInstaller is used instead of IModule.Book Cataloger: BookCataloger1.0.7a: New Features: Author editor form prototype Improvements: .NET Framework 4.0 required Input checking improved Comment edit loads and saves text...Braintree Client Library: Braintree-2.2.0: Prevent race condition when pulling back collection results -- search results represent the state of the data at the time the query was run Renam...CassiniDev - Cassini 3.5/4.0 Developers Edition: CassiniDev 3.5.1 and 4.0.1 beta 2: Documentation New in CassiniDev v3.5.1.0/v4.0.1.0 Added .Net 4 / VS10 build. Simplified test fixtures. Un-Refactored the not-so-simple MVP pa...dotNetTips: dotNetTips.Utility 3.5 R3: This is a new release (version 3.5.0.4) compatible with .NET 3.5. Requires SP1 if using the Entity Framework extensions. This is a minor update fro...Dynamic Survey Forms - SharePoint Web Part: Dynamic Survey forms for SharePoint. Alpha 1.0.1: Alpha release. Before running installer create database from script attached in zip file. In your web.config make sure your first connection strin...Event Scavenger: Viewer version 3.2.1: Added quick filters on event source and event id dialog boxes. Collector and Admin tool unaffected.Expression Blend Samples: Blend 4 Sketch Mockups Library: This library provides a set of commonly needed controls, icons and cursors to use in SketchFlow applications. After running the installer, create ...Fluent Ribbon Control Suite: Fluent Ribbon Control Suite 1.3: Fluent Ribbon Control Suite 1.3(supports .NET 3.5 and .NET 4 RTM) Includes: Fluent.dll (with .pdb and .xml) Showcase Application Samples Found...Home Access Plus+: v4.2.2: Version 4.2.2 Change Log: Changes to how mycomputer handles NTFS permissions File Changes: ~/Bin/HAP.Web.dll ~/Bin/HAP.Web.pdbIdeaNMR: IdeaNMR Web App PreAlpha 0.1: This is the first release.IP Informer: Beta Release: V0.8.0.0 Beta.LinkedIn® for Windows Mobile: LinkedIn for Windows Mobile v0.9: Main updates for this release Fixed Status update. (updates where not correctly passed on to LinkedIn) Added landscape/GSensor support. (Currentl...LINQ to Twitter: LINQ to Twitter Beta v2.0.11: New items added since v1.1 include: Support for OAuth (via DotNetOpenAuth), secure communication via https, VB language support, serialization of ...LinqSpecs: Version 1.0 alpha: This is the alpha version of LinqSpecs.miniTodo: mini Todo version 0.2: ・デザインを透明主体に変更 　-件数を表示している部分のドラッグでウィンドウ移動 　-上記の部分右クリックで、「最前面に表示」、「全アイテム管理」 ・グラフを日/週/月単位の３種類に増やした ・新規作成、完了時にアニメーション追加。完了時にはサウンドも追加 ・テキスト未入力時は追加ボタンも非表示My Notepad: My Notepad (Beta): This is the Beta version of My Notepad. The software is stable enough for you to use. Enjoy the flexibility of docking and also the all new Syntax ...NHTrace: NHTrace-45713: NHTrace-45713Nito.KitchenSink: Version 8: New features (since Version 5) Fixed null reference bug in ExceptionExtensions. Added DynamicStaticTypeMembers and RefOutArg for dynamically (lat...Nito.LINQ: Beta (v0.5): Rx version The "with Rx" versions of Nito.LINQ are built against Rx 1.0.2521.102, released 2010-05-14. Breaking changes Corrected internal read-on...Object/Relational Mapper & Code Generator in Net 2.0 for Relational & XML Schema: 2.9: Work on UI templates for associative tables (2-column PK), using users/roles pages as an example. Added templates for Not-In-Group sql and cache-ba...patterns & practices - GAX Extensions Library: GEL for gax2010: This is the GEL for GAX 2010, support Visual Stuido 2010patterns & practices - Smart Client Guidance: Smart Client Software Factory 2010 Documentation: If the right-side pane of the chm file is not displayed correctly, do the following: 1) Download SCSF2010Guide.chm file. 2) Start the windows explo...patterns & practices - Windows Azure Guidance: WAAG - Part 1 - Release Candidate: "Release Candidate" for Part 1 of the Windows Azure Guide Highlights of this release are: Code samples complete. Fixed few bugs on "Dependency Ch...Rawr: Rawr 2.3.17: >Rawr3 Public Beta has been released! Click here for details.< - Lots of improvements to the default data files. There is a known issue with the s...RunAs Launcher: RunAs Launcher 1.2: This is the first version being released to CodePlex. Simply extract the file and run the executable. For those that wish to download the source c...Rx Contrib: V1.5: Bug fixsecs4net: Release 1.0: Notes: Runtime requirement: .Net framework 2.0 SP2 with System.Core(.NET 3.5), System.Threading(Rx for 3.5 SP1)SharePoint Admin Dashboard: SPDashboard v1.0: SPDashboard v1.0ShortURL Creator: ShortURL Creator 1.3.0.0: Added new provider u.nu and minimum UI changesStyleCop+: StyleCop+ 0.7: StyleCop+ is now fully compatible with StyleCop 4.4. The following entities were supported in Advanced Naming Rules: - Delegate - Event - Property...Value Injecter: an aspect oriented mapper: Value Injecter 1.2: ValueInjecter library, Sample solution that contains: web-forms sample project win-forms sample project unit tests samplesVCC: Latest build, v2.1.30517.0: Automatic drop of latest buildVCC: Latest build, v2.1.30517.1: Automatic drop of latest buildVidCoder: 0.4.1: Changes: Marks system as "working" to prevent computer from sleeping during an encode. CPU priority changed to BelowNormal during encodes. Enco...WSP Listener: WSP Listener version 2.0.0.0: This new version includes: All assemblies and required assets in one WSP Seperated code in library assembly Activate the WSP Listener with one...Yet Another Database Viewer: Beta: first release of the programYet another developer blog - Examples: Asynchronous TreeView in ASP.NET WebForms: This sample application shows how to use jQuery TreeView plugin for creating an asynchronous TreeView in ASP.NET WebForms. This application is acco...Most Popular ProjectsRawrWBFS ManagerAJAX Control ToolkitMicrosoft SQL Server Product Samples: DatabaseSilverlight ToolkitWindows Presentation Foundation (WPF)patterns & practices – Enterprise LibraryMicrosoft SQL Server Community & SamplesPHPExcelASP.NETMost Active Projectspatterns & practices – Enterprise LibraryPHPExcelRawrBlogEngine.NETMicrosoft Biology FoundationCustomer Portal Accelerator for Microsoft Dynamics CRMWindows Azure Command-line Tools for PHP DevelopersGMap.NET - Great Maps for Windows Forms & PresentationCassiniDev - Cassini 3.5/4.0 Developers EditionDotNetZip Library

  Read the article

• How do I change the frame position for a custom MKAnnotationView?

  - by andrei

  I am trying to make a custom annotation view by subclassing MKAnnotationView and overriding the drawRect method. I want the view to be drawn offset from the annotation's position, somewhat like MKPinAnnotationView does it, so that the point of the pin is at the specified coordinates, rather than the middle of the pin. So I set the frame position and size as shown below. However, it doesn't look like I can affect the position of the frame at all, only the size. The image ends up being drawn centered over the annotation position. Any tips on how to achieve what I want? MyAnnotationView.h: @interface MyAnnotationView : MKAnnotationView { } MyAnnotationView.m: - (id)initWithAnnotation:(id <MKAnnotation>)annotation reuseIdentifier:(NSString *)reuseIdentifier { if (self = [super initWithAnnotation:annotation reuseIdentifier:reuseIdentifier]) { self.canShowCallout = YES; self.backgroundColor = [UIColor clearColor]; // Position the frame so that the bottom of it touches the annotation position self.frame = CGRectMake(0, -16, 32, 32); } return self; } - (void)drawRect:(CGRect)rect { [[UIImage imageNamed:@"blue-dot.png"] drawInRect:rect]; }

  Read the article

• script running very slow in IE with Jquery quickflip plug-in

  - by Aaron Carlino

  I have a jQuery plugin running on my site that is executing very, very slowly in IE7/8 to the point that it throws a slow script warning to the user. It doesn't happen in any other browser, and I can't figure out what might be going on. If you go to this page: http://dev.xeetic.org/projects You'll see that there are 16 results on each page, and each one has a "flip" behavior attached, using the jQuery plugin "quickflip." Attaching this behavior is very slow in IE. If I reduce the result set to 8 or 4 per page, it's faster, but still very bogged down. I have contacted the author of the script with no success. I am willing to pay for a solution, if I'm allowed to offer such a thing on this site.

  Read the article

• DVCS and data loss?

  - by David Wolever

  After almost two years of using DVCS, it seems that one inherent "flaw" is accidental data loss: I have lost code which isn't pushed, and I know other people who have as well. I can see a few reasons for this: off-site data duplication (ie, "commits have to go to a remote host") is not built in, the repository lives in the same directory as the code and the notion of "hack 'till you've got something to release" is prevalent... But that's beside the point. I'm curious to know: have you experienced DVCS-related data loss? Or have you been using DVCS without trouble? And, related, apart from "remember to push often", is there anything which can be done to minimize the risk?

  Read the article

• Sub-classing TreeView in C# WinForms for mouse over tool tips

  - by Matt

  Ok, this is a weird one. The expected behaviour for a TreeView control is that, if ShowNodeToolTips is set to false, then, when a label for a tree node exceeds the width of the control (or, more accurately, it's right hand edge is past the right hand edge of the client area), then a tooltip is shown above the node showing the full item's text. I'd like to disable that, because the above semantic doesn't always work, depending on what the treeview is contained within. So I have rolled my own, and got the tooltips to work (and line up better than the default one!) - but I would like to be able to disable the 'default' behaviour for situations where it would work natively. So, can anyone point me in the right direction as to which message to post to the TreeView in order to disable that behaviour? I have looked at the windows control reference, but couldn't find anything that looked like it might be the one. Thanks Matt

  Read the article

• Is AlarmManager.setRepeating idempotent?

  - by tardate

  In my android app, I'm setting an alarm that I want to occur repeatedly, hence using AlarmManager.setRepeating(). I don't want to keep track of whether the alarm is set myself (sounds like a bad idea that's prone to fail at some point), and there seems to be no API support for checking whether a particular alarm is already set for a given Intent. Hence, I am pessimistically resetting the alarm each time my app activates: alarmManager.cancel(pendingIntent); ... alarmManager.setRepeating(..., pendingIntent); Question: is calling setRepeating() idempotent i.e. do I need to explicitly cancel() any prior alarm or can I safely just call setRepeating() and be done with it?

  Read the article

• Elusive race condition in Java

  - by nasufara

  I am creating a graphing calculator. In an attempt to squeeze some more performance out of it, I added some multithreaded to the line calculator. Essentially what my current implementation does is construct a thread-safe Queue of X values, then start however many threads it needs, each one calculating a point on the line using the queue to get its values, and then ordering the points using a HashMap when the calculations are done. This implementation works great, and that's not where my race condition is (merely some background info). In examining the performance results from this, I found that the HashMap is a performance bottleneck, since I do that synchronously on one thread. So I figured that ordering each point as its calculated would work best. I tried a PriorityQueue, but that was slower than the HashMap. I ended up creating an algorithm that essentially works like this: I construct a list of X values to calculate, like in my current algorithm. I then copy that list of values into another class, unimaginatively and temporarily named BlockingList, which is responsible for ordering the points as they are calculated. BlockingList contains a put() method, which takes in two BigDecimals as parameters, the first the X value, the second the calculated Y value. put() will only accept a value if the X value is the next one on the list to be accepted in the list of X values, and will block until another thread gives it the next excepted value. For example, since that can be confusing, say I have two threads, Thread-1 and Thread-2. Thread-2 gets the X value 10.0 from the values queue, and Thread-1 gets 9.0. However, Thread-1 completes its calculations first, and calls put() before Thread-2 does. Because BlockingList is expecting to get 10.0 first, and not 9.0, it will block on Thread-1 until Thread-2 finishes and calls put(). Once Thread-2 gives BlockingList 10.0, it notify()s all waiting threads, and expects 9.0 next. This continues until BlockingList gets all of its expected values. (I apologise if that was hard to follow, if you need more clarification, just ask.) As expected by the question title, there is a race condition in here. If I run it without any System.out.printlns, it will sometimes lock because of conflicting wait() and notifyAll()s, but if I put a println in, it will run great. A small implementation of this is included below, and exhibits the same behavior: import java.math.BigDecimal; import java.util.concurrent.ConcurrentLinkedQueue; public class Example { public static void main(String[] args) throws InterruptedException { // Various scaling values, determined based on the graph size // in the real implementation BigDecimal xMax = new BigDecimal(10); BigDecimal xStep = new BigDecimal(0.05); // Construct the values list, from -10 to 10 final ConcurrentLinkedQueue<BigDecimal> values = new ConcurrentLinkedQueue<BigDecimal>(); for (BigDecimal i = new BigDecimal(-10); i.compareTo(xMax) <= 0; i = i.add(xStep)) { values.add(i); } // Contains the calculated values final BlockingList list = new BlockingList(values); for (int i = 0; i < 4; i++) { new Thread() { public void run() { BigDecimal x; // Keep looping until there are no more values while ((x = values.poll()) != null) { PointPair pair = new PointPair(); pair.realX = x; try { list.put(pair); } catch (Exception ex) { ex.printStackTrace(); } } } }.start(); } } private static class PointPair { public BigDecimal realX; } private static class BlockingList { private final ConcurrentLinkedQueue<BigDecimal> _values; private final ConcurrentLinkedQueue<PointPair> _list = new ConcurrentLinkedQueue<PointPair>(); public BlockingList(ConcurrentLinkedQueue<BigDecimal> expectedValues) throws InterruptedException { // Copy the values into a new queue BigDecimal[] arr = expectedValues.toArray(new BigDecimal[0]); _values = new ConcurrentLinkedQueue<BigDecimal>(); for (BigDecimal dec : arr) { _values.add(dec); } } public void put(PointPair item) throws InterruptedException { while (item.realX.compareTo(_values.peek()) != 0) { synchronized (this) { // Block until someone enters the next desired value wait(); } } _list.add(item); _values.poll(); synchronized (this) { notifyAll(); } } } } My question is can anybody help me find the threading error? Thanks!

  Read the article

• CodePlex Daily Summary for Wednesday, December 15, 2010

  CodePlex Daily Summary for Wednesday, December 15, 2010Popular ReleasesTweetSharp: TweetSharp v2.0.0.0 - Preview 5: Documentation for this release may be found at http://tweetsharp.codeplex.com/wikipage?title=UserGuide&referringTitle=Documentation. Note: This code is currently preview quality. Preview 5 ChangesMaintenance release with user reported fixes Preview 4 ChangesReintroduced fluent interface support via satellite assembly Added entities support, entity segmentation, and ITweetable/ITweeter interfaces for client development Numerous fixes reported by preview users Preview 3 ChangesNumerous ...SQL Monitor: SQL Monitor 2.8: 1. redesigned the object explorer, support multiple serversEnhSim: EnhSim 2.2.2 ALPHA: 2.2.2 ALPHAThis release adds in the changes for 4.03a at level 85 To use this release, you must have the Microsoft Visual C++ 2010 Redistributable Package installed. This can be downloaded from http://www.microsoft.com/downloads/en/details.aspx?FamilyID=A7B7A05E-6DE6-4D3A-A423-37BF0912DB84 To use the GUI you must have the .NET 4.0 Framework installed. This can be downloaded from http://www.microsoft.com/downloads/en/details.aspx?FamilyID=9cfb2d51-5ff4-4491-b0e5-b386f32c0992 - The spirit ...FlickrNet API Library: 3.1.4000: Newest release. Now contains dedicated Windows Phone 7 DLL as well as all previous DLLs. Also contains Windows Help file documentation now as standard.mojoPortal: 2.3.5.8: see release notes on mojoportal.com http://www.mojoportal.com/mojoportal-2358-released.aspx Note that we have separate deployment packages for .NET 3.5 and .NET 4.0 The deployment package downloads on this page are pre-compiled and ready for production deployment, they contain no C# source code. To download the source code see the Source Code Tab I recommend getting the latest source code using TortoiseHG, you can get the source code corresponding to this release here.Microsoft All-In-One Code Framework: Visual Studio 2010 Code Samples 2010-12-13: Code samples for Visual Studio 2010SuperSocket, an extensible socket application framework: SuperSocket 1.3 beta 1: SuperSocket 1.3 is built on .NET 4.0 framework. Bug fixes: fixed a potential bug that the running state hadn't been updated after socket server stopped fixed a synchronization issue when clearing timeout session fixed a bug in ArraySegmentList fixed a bug on getting configuration value Third-part library upgrades: upgraded SuperSocket to .NET 4.0 upgraded EntLib 4.1 to 5.0 New features: supported UDP socket support custom protocol (can support binary protocol and other complecate...Wii Backup Fusion: Wii Backup Fusion 0.9 Beta: - Aqua or brushed metal style for Mac OS X - Shows selection count beside ID - Game list selection mode via settings - Compare Files <-> WBFS game lists - Verify game images/DVD/WBFS - WIT command line for log (via settings) - Cancel possibility for loading games process - Progress infos while loading games - Localization for dates - UTF-8 support - Shortcuts added - View game infos in browser - Transfer infos for log - All transfer routines rewritten - Extract image from image/WBFS - Support....NETTER Code Starter Pack: v1.0.beta: '.NETTER Code Starter Pack ' contains a gallery of Visual Studio 2010 solutions leveraging latest and new technologies and frameworks based on Microsoft .NET Framework. Each Visual Studio solution included here is focused to provide a very simple starting point for cutting edge development technologies and framework, using well known Northwind database (for database driven scenarios). The current release of this project includes starter samples for the following technologies: ASP.NET Dynamic...WPF Multiple Document Interface (MDI): Beta Release v1.1: WPF.MDI is a library to imitate the traditional Windows Forms Multiple Document Interface (MDI) features in WPF. This is Beta release, means there's still work to do. Please provide feedback, so next release will be better. Features: Position dependency property MdiLayout dependency property Menu dependency property Ctrl + F4, Ctrl + Tab shortcuts should work Behavior: don’t allow negative values for MdiChild position minimized windows: remember position, tile multiple windows, ...SQL Server PowerShell Extensions: 2.3.1 Production: Release 2.3.1 implements SQLPSX as PowersShell version 2.0 modules. SQLPSX consists of 12 modules with 155 advanced functions, 2 cmdlets and 7 scripts for working with ADO.NET, SMO, Agent, RMO, SSIS, SQL script files, PBM, Performance Counters, SQLProfiler and using Powershell ISE as a SQL and Oracle query tool. In addition optional backend databases and SQL Server Reporting Services 2008 reports are provided with SQLServer and PBM modules. See readme file for details.NuGet (formerly NuPack): NuGet 1.0 Release Candidate: NuGet is a free, open source developer focused package management system for the .NET platform intent on simplifying the process of incorporating third party libraries into a .NET application during development. This release is a Visual Studio 2010 extension and contains the the Package Manager Console and the Add Package Dialog. This new build targets the newer feed (http://go.microsoft.com/fwlink/?LinkID=206669) and package format. See http://nupack.codeplex.com/documentation?title=Nuspe...Free Silverlight & WPF Chart Control - Visifire: Visifire Silverlight, WPF Charts v3.6.5 Released: Hi, Today we are releasing final version of Visifire, v3.6.5 with the following new feature: * New property AutoFitToPlotArea has been introduced in DataSeries. AutoFitToPlotArea will bring bubbles inside the PlotArea in order to avoid clipping of bubbles in bubble chart. You can visit Visifire documentation to know more. http://www.visifire.com/visifirechartsdocumentation.php Also this release includes few bug fixes: * Chart threw exception while adding new Axis in Chart using Vi...PHPExcel: PHPExcel 1.7.5 Production: DonationsDonate via PayPal via PayPal. If you want to, we can also add your name / company on our Donation Acknowledgements page. PEAR channelWe now also have a full PEAR channel! Here's how to use it: New installation: pear channel-discover pear.pearplex.net pear install pearplex/PHPExcel Or if you've already installed PHPExcel before: pear upgrade pearplex/PHPExcel The official page can be found at http://pearplex.net. Want to contribute?Please refer the Contribute page.SwapWin: SwapWin 0.2: Updates: Bring all windows that are swapped to foreground. Make the window sent to primary screen active.??????????: All-In-One Code Framework ??? 2010-12-10: ?????All-In-One Code Framework（??） 2010?12??????！！http://i3.codeplex.com/Project/Download/FileDownload.aspx?ProjectName=1code&DownloadId=128165 ?????release?，???????ASP.NET, WinForm, Silverlight????12?Sample Code。???，??????????sample code。 ?????：http://blog.csdn.net/sjb5201/archive/2010/12/13/6072675.aspx ??，??????MSDN????????????。 http://social.msdn.microsoft.com/Forums/zh-CN/codezhchs/threads ?????????????????，??Email ????DNN Simple Article: DNNSimpleArticle Module V00.00.03: The initial release of the DNNSimpleArticle module (labelled V00.00.03) There are C# and VB versions of this module for this initial release. No promises that going forward there will be packages for both languages provided for future releases. This module provides the following functionality Create and display articles Display a paged list of articles Articles get created as DNN ContentItems Categorization provided through DNN Taxonomy SEO functionality for article display providi...AutoLoL: AutoLoL v1.4.3: AutoLoL now supports importing the build pages from Mobafire.com as well! Just insert the url to the build and voila. (For example: http://www.mobafire.com/league-of-legends/build/unforgivens-guide-how-to-build-a-successful-mordekaiser-24061) Stable release of AutoChat (It is still recommended to use with caution and to read the documentation) It is now possible to associate *.lolm files with AutoLoL to quickly open them The selected spells are now displayed in the masteries tab for qu...SubtitleTools: SubtitleTools 1.2: - Added auto insertion of RLE (RIGHT-TO-LEFT EMBEDDING) Unicode character for the RTL languages. - Fixed delete rows issue.PHP Manager for IIS: PHP Manager 1.1 for IIS 7: This is a final stable release of PHP Manager 1.1 for IIS 7. This is a minor incremental release that contains all the functionality available in 53121 plus additional features listed below: Improved detection logic for existing PHP installations. Now PHP Manager detects the location to php.ini file in accordance to the PHP specifications Configuring date.timezone. PHP Manager can automatically set the date.timezone directive which is required to be set starting from PHP 5.3 Ability to ...New Projectscomplile: compiler is bestComputer Graphics: Esercitazioni di Computer GraficaDocsVision WorkFlow Extended Library: ?????? ??????, ???????????? ????? ??????????, ??????????? ????? ?????? ? DocsVision.WorkFlow.Gates. ?????????? ?????????? ????????????? ???????-????????? ? ????? DocsVision. ??????????? ??????: - DVTypeConverter; - DVCardProperty.DotNetNuke Razor Forum Profile: A razor based module for DotNetNuke that displays a user's forum profile information (based on the core forum). Excel AddIn to reset the last worksheet cell: This is a sample Excel AddIn to reset the last worsheet cell in an Excel Workbook.FriendFeed Backup Creator: FriendFeed Backup Creator makes it easier for friendfeed users to backup their feeds including likes and comments. You'll no longer have to worry about your old feeds.Gerins: Sistema Gerencial InsolGoodreads for Windows Phone 7: Goodreads client for Windows Phone 7HyperView for DotNetNuke: HyperView for DotNetNuke is a port of the MIT Exhibit project for DotNetNuke. Exhibit enables web site authors to easily create dynamic exhibits of collections. The collections can be searched and browsed using faceted browsing.Ladder Ranking System: A ladder ranking system as a DotNetNuke moduleLive Office Tools: <LOT - Live Office Tools> makes it easier for <target user group> to <Escritórios>. You'll no longer have to <activity>. It's developed in <C#>. LostMamory: ???????GIS??My WP7 Brand: My WP7 Brand is a simple Windows Phone 7 Template that allows users to view your rss feed, your tweet and your contact's info.Network Adapter/ Interface Analyzer, viewer, Speed Calculator: Simple .Net Application to give information about all network adapters in the system, their running status, max speed, download upload speed, etcOnlineenquete: Online enquete is an application based based on BeeldbankMVC. This project will be used as a starting point for creating my online survay toolOpalis Extension Exchange Mail: A Opalis Integration Pack allowing for Exachange 2007 and 2010 mail manipulation functions. Uses Exchange Webservices.PAK: A Sample project for windows Phone 7, Azure and K2 blackpearl.Persephone CMS: // TODO: Some description to be displayed here!!!Perspectives: Perspectives makes it easier for Visual Studio 2010 users to manage window configurations. It's developed in C#. It was modeled after the Eclipse Perspectives window management system.Photo Studio: Photo studio for storing family albumsPorto Alegre Dojo: Porto Alegre DojoRazor's Edge DotNetNuke User Map: Razor's Edge User Map allows you to load your DotnetNuke user's locations on to a map dynamically based on the address in their user profile. It uses the razor scripting language to retrieve user data and display that data on the page.RestUpMVC: RestUpMVC is a library that allows developers to easily expose a RESTful interface from an ASP.NET MVC application. The library was written in C#.Rocket Framework for Windows Form: Rocket Framework winform .net 4.0 WPF generic entity framework repositoryRPG Maplestory XNA SDK C#: a RPG Maplestory XNA SDK makes it easier for all people want to devolopded a Platform rpg in XNA - C# Sistema para Manejo de Maquinas: Sistema para controlar, insertar y almacenar datos.SoloForum: SoloForumUpdate SharePoint 2010 User Personal Settings: Every SharePoint user will have his/her personal settings for a site collection. Each user can view their details by clicking on Logged-in User link and select My Settings menu item. This tool helps to update user personal settings for a particular site collection.uREST 4 Umbraco: uREST is an Umbraco package for adding a set of RESTful web services to an Umbraco website.Veller: This is a high speed game where speed is your ally. The faster you go the more damage you do. You are vulnerable when moving slow, but gain momentum. Windows Forms Wizard: Oddly, the Windows Forms libraries don't provide any support for writing wizards. Here's one way to do it. Yes!gama NewCMS: Yes!gama NewCMS is a simple news CMS Builded by asp.net + access very very simple... maybe u like simlpe tings...

  Read the article

• Resizing and rotating an image in Android

  - by kingrichard2005

  I'm trying to rotate and resize an image in Android. The code I have is as follows, (taken from this tutorial): Bitmap originalSprite = BitmapFactory.decodeResource(getResources(), R.drawable.android); int orgHeight = a.getHeight(); int orgWidth = a.getWidth(); //Create manipulation matrix Matrix m = new Matrix(); // resize the bit map m.postScale(.25f, .25f); // rotate the Bitmap by the given angle m.postRotate(180); //Rotated bitmap Bitmap rotatedBitmap = Bitmap.createBitmap(originalSprite, 0, 0, orgWidth, orgHeight, m, true); return rotatedBitmap; The image seems to rotate just fine, but it doesn't scale like I expect it to. I've tried different values, but the image only gets more pixelized as I reduce the scale values, but remains that same size visually; whereas the goal I'm trying to achieve is to actually shrink it visually. I'm not sure what to do at this point, any help is appreciated.

  Read the article

• How can an amateur programmer become professional without formal education (college) outside the US

  - by AlexRednic

  What is the path? Do I get certified (Microsoft,Sun,etc)? How do I build reputation? How do I make myself valuable without a college degree? How do I make others recognize my value? These are just a few questions but all point in the same direction. Are any of you in the same situation? What paths did you follow to become a successful programmer without the need of formal education?

  Read the article

< Previous Page | 474 475 476 477 478 479 480 481 482 483 484 485  | Next Page >