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  • Why is my logic not working correctly for SPOJ TOPOSORT?

    - by Kavish Dwivedi
    The given problem is http://www.spoj.com/problems/TOPOSORT/ The output format is particularly important as : Print "Sandro fails." if Sandro cannot complete all his duties on the list. If there is a solution print the correct ordering, the jobs to be done separated by a whitespace. If there are multiple solutions print the one, whose first number is smallest, if there are still multiple solutions, print the one whose second number is smallest, and so on. What I am doing is simply doing dfs by reversing the edges i.e if job A finishes before job B, there is a directed edge from B to A . I am maintaining the order by sorting the adjacency list I created and storing the nodes which don't have any constraints separately so as to print them later in correct order . There are two flag arrays used , one for marking discovered node and one for marking the node whose all neighbors have been explored. Now my solution is http://www.ideone.com/QCUmKY (the important function is the visit funtion ) and its giving WA after running correct for 10 cases so its really hard to figure out where am I doing it wrong since it runs for all of the test cases which I have done by hand.

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  • Flash as3 smooth threshold

    - by arkzai
    hello, I'm building a flash app that pulls images from flickr and removes the white background I'm dong this using threshold and i get a really ragged outcome is there any way to get a better and smoother color key? thanks photoNumber = Math.floor(Math.random() * (photos.length)); loader.load(new URLRequest(photos[photoNumber].path)); loader.contentLoaderInfo.addEventListener(Event.COMPLETE,draw); trace ( "trying to load photo " + photoNumber ); function draw(e:Event) { trace ("show photo " + photoNumber) var W:int=e.target.content.width; var H:int=e.target.content.height; bitmapdata=new BitmapData(W,H); bitmap=new Bitmap(bitmapdata); bitmapdata.draw(e.target.content); var threshold:uint = 0xF9F8F800; var color:uint = 0x00000000; var maskColor:uint = 0x00FF0000; bitmapdata.threshold(bitmapdata,new Rectangle(0,0,W,H),new Point(0,0),">", threshold, color, maskColor, true); bitmap.smoothing = true; //bitmap.scaleX = bitmap.scaleY = 0.99; // <---- imgHolder.addChild(bitmap); } }

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  • Delphi - Populate an imagelist with icons at runtime 'destroys' transparency

    - by ben
    Hi again, I've spended hours for this (simple) one and don't find a solution :/ I'm using D7 and the TImageList. The ImageList is assigned to a toolbar. When I populate the ImageList at designtime, the icons (with partial transparency) are looking fine. But I need to populate it at runtime, and when I do this the icons are looking pretty shitty - complete loose of the partial transparency. I just tried to load the icons from a .res file - with the same result. I've tried third party image lists also without success. I have no clue what I could do :/ Thanks 2 all ;) edit: To be honest I dont know exactly whats going on. Alpha blending is the correkt term... Here are 2 screenies: Icon added at designtime: Icon added at runtime: Your comment that alpha blending is not supported just brought the solution: I've edited the image in an editor and removed the "alpha blended" pixels - and now it looks fine. But its still strange that the icons look other when added at runtime instead of designtime. If you (or somebody else ;) can explain it, I would be happy ;) thanks for you support!

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  • A simple WCF Service (POX) without complex serialization

    - by jammer59
    I'm a complete WCF novice. I'm trying to build a deploy a very, very simple IIS 7.0 hosted web service. For reasons outside of my control it must be WCF and not ASMX. It's a wrapper service for a pre-existing web application that simply does the following: 1) Receives a POST request with the request body XML-encapsulated form elements. Something like valuevalue. This is untyped XML and the XML is atomic (a form) and not a list of records/objects. 2) Add a couple of tags to the request XML and the invoke another HTTP-based service with a simple POST + bare XML -- this will actually be added by some internal SQL ops but that isn't the issue. 3) Receive the XML response from the 3rd party service and relay it as the response to the original calling client in Step 1. The clients (step 1) will be some sort of web-based scripting but could be anything .aspx, python, php, etc. I can't have SOAP and the usual WCF-based REST examples with their contracts and serialization have me confused. This seems like a very common and very simple problem conceptually. It would be easy to implement in code but IIS-hosted WCF is a requirement. Any pointers?

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  • Strange execution times in t-sql

    - by TonyP
    Hi All I have two stored procedures, the first one calls the second .. If I execute the second one alone it takes over 5 minutes to complete.. But when executed within the first one it takes little over 1 minute.. What is the reason ! Here is the first one ALTER procedure [dbo].[schRefreshPriceListItemGroups] as begin tran delete from PriceListItemGroups if @@error !=0 goto rolback Insert PriceListItemGroups(comno,t$cuno,t$cpls,t$cpgs,t$dsca,t$cpru) SELECT distinct c.comno,c.t$cuno, c.t$cpls,I.t$cpgs,g.t$dsca,g.t$cpru FROM TTCCOM010nnn C JOIN TTDSLS032nnn PL ON PL.comno = c.Comno and PL.t$cpls = c.t$cpls JOIN TTIITM001nnn I ON I.t$item = pl.t$item AND I.comno = pl.comNo JOIN TTCMCS024nnn G ON g.T$cprg = I.t$cpgs AND g.comno = I.Comno WHERE c.t$cpls !='' order by comno desc, t$cuno, t$cpgs if @@error !=0 goto rolback ----------------------------------------------------- Exec scrRefreshCustomersCatalogs ----------------------------------------------------- commit tran return rolback: Rollback tran And the second one Alter proc scrRefreshCustomersCatalogs as declare @baanIds table(id int identity(1,1),baanId varchar(12)) declare @baanId varchar(12),@i int, @n int Insert @baanIds(BaanId) select baanId from ftElBaanIds() SELECT @I=1,@n=max(id) from @baanIds select @i,@n Begin tran if @@error !=0 goto xRollBack WHILE @I <=@n Begin select @baanId=baanId from @baanIds where id=@i if @@error !=0 goto xRollBack Delete from customersCatalogs where comno+'-'+t$cuno=@baanId print Convert(varchar,@i)+' baanId='+@baanId Insert customersCatalogs exec customersCatalog @baanId if @@error !=0 goto xRollBack set @i=@i+1; end Commit Tran Update statistics customersCatalogs with fullscan Return xRollBack: Print '*****Rolling back*************' Rollback tran

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  • Why isn't module_filters filtering Mail::IspMailGate in CPAN::Mini?

    - by user304122
    Edited - Ummm - now have a module in schwigon giving same problem !! I am on a corporate PC that forces mcshield on everything that moves. I get blocked when trying to mirror on ... authors/id/J/JV/JV/EekBoek-2.00.01.tar.gz ... updated authors/id/J/JV/JV/CHECKSUMS ... updated Could not stat tmpfile '/cygdrive/t/cpan_mirror/authors/id/J/JW/JWIED/Mail-IspMailGate-1.1013.tar.gz-4712': No such file or directory at /usr/lib/perl5/site_perl/5.10/LWP/UserAgent.pm line 851. authors/id/J/JW/JWIED/Mail-IspMailGate-1.1013.tar.gz At this point, I get the Virus scanner mcshield sticking its Awr in. To maintain my mirror I execute:- #!/usr/bin/perl CPAN::Mini->update_mirror( remote => "http://mirror.eunet.fi/CPAN", local => "/cygdrive/t/cpan_mirror/", trace => 1, errors => 1, module_filters => [ qr/kjkjhkjhkjkj/i, qr/clamav/i, qr/ispmailgate/i, qr/IspMailGate/, qr/Mail-IspMailGate/, qr/mail-ispmailgate/i, ], path_filters => [ qr/ZZYYZZ/, #qr/WIED/, #qr/RJBS/, ] ); It skips OK if I enable the path_filter WIED. Just cannot get it to skip the module failing module to complete other WIED modules. Any ideas?

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  • Uploading file with metadata

    - by Dilse Naaz
    Hi Could you help me for how to adding a file to the sharepoint document library? I found some articles in net. but i didn't get the complete concept of the same. Now i uploaded a file without metadata by using this code. if (fuDocument.PostedFile != null) { if (fuDocument.PostedFile.ContentLength > 0) { Stream fileStream = fuDocument.PostedFile.InputStream; byte[] byt = new byte[Convert.ToInt32(fuDocument.PostedFile.ContentLength)]; fileStream.Read(byt, 0, Convert.ToInt32(fuDocument.PostedFile.ContentLength)); fileStream.Close(); using (SPSite site = new SPSite(SPContext.Current.Site.Url)) { using (SPWeb webcollection = site.OpenWeb()) { SPFolder myfolder = webcollection.Folders["My Library"]; webcollection.AllowUnsafeUpdates = true; myfolder.Files.Add(System.IO.Path.GetFileName(fuDocument.PostedFile.FileName), byt); } } } } This code is working as fine. But i need to upload file with meta data. Please help me by editing this code if it possible. I created 3 columns in my Document library..

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  • CAS authentication and redirects with jQuery Ajax

    - by Steve Nay
    I've got an HTML page that needs to make requests to a CAS-protected (Central Authentication Service) web service using the jQuery AJAX functions. I've got the following code: $.ajax({ type: "GET", url: request, dataType: "json", complete: function(xmlHttp) { console.log(xmlHttp); alert(xmlHttp.status); }, success: handleRedirects }); The request variable can be either to the CAS server (https://cas.mydomain.com/login?service=myServiceURL) or directly to the service (which should then redirect back to CAS to get a service ticket). Firebug shows that the request is being made and that it comes back as a 302 redirect. However, the $.ajax() function isn't handling the redirect. I wrote this function to work around this: var handleRedirects = function(data, textStatus) { console.log(data, textStatus); if (data.redirect) { console.log("Calling a redirect: " + data.redirect); $.get(data.redirect, handleRedirects); } else { //function that handles the actual data processing gotResponse(data); } }; However, even with this, the handleRedirects function never gets called, and the xmlHttp.status always returns 0. It also doesn't look like the cookies are getting sent with the cas.mydomain.com call. (See this question for a similar problem.) Is this a problem with the AJAX calls not handling redirects, or is there more going on here than meets the eye?

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  • Decode amf3 object using PHP

    - by Xuki
    My flash code: var request=new URLRequest('http://localhost/test.php'); request.method = URLRequestMethod.POST; var data = new URLVariables(); var bytes:ByteArray = new ByteArray(); bytes.objectEncoding = ObjectEncoding.AMF3; //write an object into the bytearray bytes.writeObject( { myString:"Hello World"} ); data.data = bytes; request.data = data; var urlLoader:URLLoader = new URLLoader(); urlLoader.dataFormat = URLLoaderDataFormat.BINARY; urlLoader.addEventListener(Event.COMPLETE, onCompleteHandler); urlLoader.load(request); function onCompleteHandler(evt:Event):void { trace(evt.target.data); } PHP code: define("AMF_AMF3",1); $data = $_POST['data']; echo amf_decode($data, AMF_AMF3); Basically I need to send an AMF3 object from Flash to PHP and unserialize it. I'm using AMFEXT extension but couldn't get it to work. Any idea?

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  • How do I begin reading source code?

    - by anonnoir
    I understand the value of reading source code, and I am trying my best to read as much as I can. However, every time I try getting into a 'large' (i.e. complete) project of sorts, I am overwhelmed. For example, I use Anki a lot when revising languages. Also, I'm interested in getting to know how an audio player works (because I have some project ideas), hence quodlibet on Google Code. But whenever I open the source code folders for the above programs, there are just so many files that I don't know where or what to begin with. I think that I should start with files marked init.py but I can't see the logical structure of the programs, or what reasoning was applied when the original writer divided his modules the way he did. Hence, my questions: How/where should I begin reading source? Any general tips or ideas? How does a programmer keep in mind the overall structure and logic of the program, especially for large projects, and is it common not to document that structure? As an open source reader, must I look through all of the code and get a bird's eye view of the code and libraries, before even being able to proceed? Would an IDE like Eclipse SDK (with PyDev) help with code-reading? Thanks for the help; I really appreciate your helping me.

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  • How to pull UIImages from NSData from a socket.

    - by Jus' Wondrin'
    Hey all! I'm using ASyncSocket to move some UIImages from one device over to another. Essentially, on one device I have: NSMutableData *data = UIImageJPEGRepresentation(image, 0.1); if(isRunning){ [sock writeData:data withTimeout:-1 tag:0]; } So a new image will be added to the socket every so often (like a webcam). Then, on the other device, I am calling: [listenSocket readDataWithTimeout:1 tag:0]; which will respond with: - (void)onSocket:(AsyncSocket *)sock didReadData:(NSData *)data withTag:(long)tag { [responseData appendData:data]; [listenSocket readDataWithTimeout:1 tag:0]; } Essentially, what I want to be able to do is have an NSTimer going which will call @selector(PullImages): -(void) PullImages { In here, I want to be able to pull images out of ResponseData. How do I do that? There might not be a complete image yet, there might be multiple images, there might be one and a half images! I want to parse the NSData into each existing image! } Any assistance? Thanks in advance!

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  • SyntaxHighlighter and Line Break Tags

    - by azamsharp
    I am using the following syntax highligher: http://alexgorbatchev.com/wiki/SyntaxHighlighter For some reason when it encounter <br> it simply prints out <br> tags. I cannot replace the whole thing with System.Environment.NewLine since it will mess up the complete description. Here is my code: public static string GetDescription(string description) { string codeStartPattern = "&lt;code&gt;"; string codeEndPattern = "&lt;/code&gt;"; Regex reg = new Regex(codeStartPattern); description = reg.Replace(description, ReplaceWithStartDiv); reg = new Regex(codeEndPattern); description = reg.Replace(description, ReplaceWithEndDiv); return description; } private static string ReplaceWithStartDiv(Match m) { return "<script type='syntaxhighlighter' class='brush: csharp'><![CDATA["; } private static string ReplaceWithEndDiv(Match m) { return "]]></script>"; } I guess I only need to replace <br> with System.Environment.Newline with the code that is between the <code> snippet here </code> Thanks!

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  • Which PHP library I should choose to work with CouchDB?

    - by Guss
    I want to try playing with CouchDB for a new project I'm writing (as a hobby, not part of my job). I'm well versed in PHP, but I haven't programmed with CouchDB at all, and also I have little experience with non-SQL databases. From looking at CouchDB's "Getting Started with PHP" document they recommend using a third-party library or writing your own client using their RESTful HTTP API. I think I'd rather not mess with writing protocol implementations myself at this point, but what is your experience with writing PHP to work with CouchDB? I haven't tested any of the alternatives yet, but I looked at: PHPillow : I'm interested in the way they implement ORM. I wasn't planning to do ORM, but my problem domain probably map well to that method. PHP Object Freezer: seems like a poor man's ORM - I can use it to implement an actual ORM, or just as an easy store/retrieve document API but it seems too primitive. PHP-on-Couch : Also a bit simple, but they have an interesting API for views and from the documentation it looks usable enough. PHP CouchDB Extension : From the listed options this looks like it has the best chance of making it into the PHP mainline itself, and also has the most complete API. Any opinion one wish to share on each library is welcome.

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  • How to estimate size of data to transfer when using DbCommand.ExecuteXXX?

    - by Yadyn
    I want to show the user detailed progress information when performing potentially lengthy database operations. Specifically, when inserting/updating data that may be on the order of hundreds of KB or MB. Currently, I'm using in-memory DataTables and DataRows which are then synced with the database via TableAdapter.Update calls. This works fine and dandy, but the single call leaves little opportunity to glean any kind of progress info to show to the user. I have no idea how much data is passing through the network to the remote DB or its progress. Basically, all I know is when Update returns and it is assumed complete (barring any errors or exceptions). But this means all I can show is 0% and then a pause and then 100%. I can count the number of rows, even going so far to cound how many are actually Modified or Added, and I could even maybe calculate per DataRow its estimated size based on the datatype of each column, using sizeof for value types like int and checking length for things like strings or byte arrays. With that, I could probably determine, before updating, an estimated total transfer size, but I'm still stuck without any progress info once Update is called on the TableAdapter. Am I stuck just using an indeterminate progress bar or mouse waiting cursor? Would I need to radically change our data access layer to be able to hook into this kind of information? Even if I can't get it down to the precise KB transferred (like a web browser file download progress bar), could I at least know when each DataRow/DataTable finishes or something? How do you best show this kind of progress info using ADO.NET?

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  • ExecutorService - scaling

    - by Stanciu Alexandru-Marian
    I am trying to write a program in Java using ExecutorService and it's function invokeAll. My question is: does the invokeAll functions solve the tasks simultaneously? I mean, if i have two processors, there will be two workers in the same time? Because a can't make it to scale correct. It takes the same time to complete the problem if i give newFixedThreadPool(2) or 1. List<Future<PartialSolution>> list = new ArrayList<Future<PartialSolution>>(); Collection<Callable<PartialSolution>> tasks = new ArrayList<Callable<PartialSolution>>(); for(PartialSolution ps : wp) { tasks.add(new Map(ps, keyWords)); } list = executor.invokeAll(tasks); Map is a class that implements Callable and wp is a vector of Partial Solutions, a class that holds some informations in different times. Why doesn't it scale? What could be the problem? Thank you, Alex

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  • Using ThreadPool.QueueUserWorkItem - thread unexpectedly exits

    - by alex
    I have the following method: public void PutFile(string ID, Stream content) { try { ThreadPool.QueueUserWorkItem(o => putFileWorker(ID, content)); } catch (Exception ex) { OnPutFileError(this, new ExceptionEventArgs { Exception = ex }); } } The putFileWorker method looks like this: private void putFileWorker(string ID, Stream content) { //Get bucket name: var bucketName = getBucketName(ID) .ToLower(); //get file key var fileKey = getFileKey(ID); try { //if the bucket doesn't exist, create it if (!Amazon.S3.Util.AmazonS3Util.DoesS3BucketExist(bucketName, s3client)) s3client.PutBucket(new PutBucketRequest { BucketName = bucketName, BucketRegion = S3Region.EU }); PutObjectRequest request = new PutObjectRequest(); request.WithBucketName(bucketName) .WithKey(fileKey) .WithInputStream(content); S3Response response = s3client.PutObject(request); var xx = response.Headers; OnPutFileCompleted(this, new ValueEventArgs { Value = ID }); } catch (Exception e) { OnPutFileError(this, new ExceptionEventArgs { Exception = e }); } } I've created a little console app to test this. I wire up event handlers for the OnPutFileError and OnPutFileCompleted events. If I call my PutFile method, and step into this, it gets to the "//if the bucket doesn't exist, create it" line, then exits. No exception, no errors, nothing. It doesn't complete (i've set breakpoints on my event handlers too) - it just exits. If I run the same method without the ThreadPool.QueueUserWorkItem then it runs fine... Am I missing something?

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  • What's a good way of building up a String where you specific start and end locations?

    - by Michael Campbell
    (java 1.5) I have a need to build up a String, in pieces. I'm given a set of (sub)strings, each with a start and end point of where they belong in the final string. Was wondering if there were some canonical way of doing this. This isn't homework, and I can use any licensable OSS, such as jakarta commons-lang StringUtils etc. My company has a solution using a CharBuffer, and I'm content to leave it as is (and add some unit tests, of which there are none (?!)) but the code is fairly hideous and I would like something easier to read. As I said this isn't homework, and I don't need a complete solution, just some pointers to libraries or java classes that might give me some insight. The String.Format didn't seem QUITE right... I would have to honor inputs too long and too short, etc. Substrings would be overlaid in the order they appear (in case of overlap). As an example of input, I might have something like: String:start:end FO:0:3 (string shorter than field) BAR:4:5 (String larger than field) BLEH:5:9 (String overlays previous field) I'd want to end up with FO BBLEH 01234567890

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  • Actionscript project that loads a Flex SWF, "Could not find resource bundle" Error when using Layout

    - by Leeron
    Hi guys. I'm using an actionsciprt only project (under FlashDevelop) to load an .swf flex file built by another department of the company I work for. Using the follwing code: var mLoader:Loader = new Loader(); var mRequest:URLRequest = new URLRequest('flexSWF.swf'); mLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, onCompleteHandler); mLoader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, onProgressHandler); mLoader.load(mRequest); That worked fine until I wanted to use Flex's mx.managers.LayoutManager. I've added the this line to my class: import mx.managers.ILayoutManagerClient; import mx.managers.LayoutManager; . . . private var _layoutManager:LayoutManager; And I get this run time error: Error: Could not find resource bundle messaging at mx.resources::ResourceBundle$/getResourceBundle()[C:\autobuild\3.5.0\frameworks\projects\framework\src\mx\resources\ResourceBundle.as:143] at mx.utils::Translator$cinit() at global$init() at mx.messaging.config::ServerConfig$cinit() at global$init() at _app_FlexInit$/init() at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::docFrameHandler()[C:\autobuild\3.5.0\frameworks\projects\framework\src\mx\managers\SystemManager.as:3217] at mx.managers::SystemManager/docFrameListener()[C:\autobuild\3.5.0\frameworks\projects\framework\src\mx\managers\SystemManager.as:3069] commenting the LayoutManager line, the swf works fine. But I do want to use LayoutManager. Any hints?

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  • How CPU finds ISR and distinguishes between devices

    - by ripunjay-tripathi-gmail-com
    I should first share all what I know - and that is complete chaos. There are several different questions on the topic, so please don't get irritated :). 1) To find an ISR, CPU is provided with a interrupt number. In x86 machines (286/386 and above) there is a IVT with ISRs in it; each entry of 4 bytes in size. So we need to multiply interrupt number by 4 to find the ISR. So first bunch of questions is - I am completely confused in mechanism of CPU receiving the interrupt. To raise an interrupt, firstly device shall probe for IRQ - then what ? The interrupt number travels "on IRQ" towards CPU? I also read something like device putting ISR address on data bus ; whats that then ? What is the concept of devices overriding the ISR. Can somebody tell me few example devices where CPU polls for interrupts? And where does it finds ISR for them ? 2) If two devices share an IRQ (which is very much possible), how does CPU differs amongst them ? What if both devices raise an interrupt of same priority simultaneously. I got to know there will be masking of same type and low priority interrupts - but how this communication happens between CPU and device controller? I studied the role of PIC and APIC for this problem, but could not understand. Thanks for reading. Thank you very much for answering.

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  • Why isn't module_filters filetering Mail::IspMailGate in CPAN::Mini?

    - by user304122
    Edited - Ummm - now have a module in schwigon giving same problem !! I am on a corporate PC that forces mcshield on everything that moves. I get blocked when trying to mirror on ... authors/id/J/JV/JV/EekBoek-2.00.01.tar.gz ... updated authors/id/J/JV/JV/CHECKSUMS ... updated Could not stat tmpfile '/cygdrive/t/cpan_mirror/authors/id/J/JW/JWIED/Mail-IspMailGate-1.1013.tar.gz-4712': No such file or directory at /usr/lib/perl5/site_perl/5.10/LWP/UserAgent.pm line 851. authors/id/J/JW/JWIED/Mail-IspMailGate-1.1013.tar.gz At this point, I get the Virus scanner mcshield sticking its Awr in. To maintain my mirror I execute:- #!/usr/bin/perl CPAN::Mini->update_mirror( remote => "http://mirror.eunet.fi/CPAN", local => "/cygdrive/t/cpan_mirror/", trace => 1, errors => 1, module_filters => [ qr/kjkjhkjhkjkj/i, qr/clamav/i, qr/ispmailgate/i, qr/IspMailGate/, qr/Mail-IspMailGate/, qr/mail-ispmailgate/i, ], path_filters => [ qr/ZZYYZZ/, #qr/WIED/, #qr/RJBS/, ] ); It skips OK if I enable the path_filter WIED. Just cannot get it to skip the module failing module to complete other WIED modules. Any ideas?

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  • Print a string that contains a certain pattern in Java

    - by jjpotter
    I am trying to find a regular expression within a line of a .csv file, so I can eventually save all the matches to another file, and lose all the other junk. So a line in my file might look like: MachineName,User,IP,VariableData,Location The VariableData is what I want to match, and if there's a match, print the line. I am using a pattern for this because I only want 3 out of 10 of variations of VariableData, and out of those 3, they are numbered differently(example, "pc104, pccrt102, pccart65"). I am trying to do this using the Scanner Class and keeping it simple as possible so I can understand it. Here is where I was heading with this...(the pattern isn't complete, just have it like this for testing). import java.io.File; import java.util.Scanner; import java.util.regex.Pattern; public class pcv { public static void main(String[] args) { File myFile = new File("c:\\temp\\report.csv"); Pattern myPat = Pattern.compile("pc"); try{ Scanner myScan = new Scanner(myFile); while(myScan.hasNext()){ if(myScan.hasNext(myPat)){ System.out.println("Test"); } } }catch(Exception e){ } } } This code loops, im guessing the .hasNext() methods are resetting themselves. I've played around with the Matcher class a little bit, but only found a way to match the expression but not get the whole line. My other throught was maybe somehow count the line that contains the pattern, then go back and print the line that corresponds to the counts.

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  • Rotating an object in OpenGL ES for iPhone [translate to origin --> rotate --> translate back is not

    - by ayanonagon
    I recently started working with OpenGL ES for the iPhone, and I am having a bit of trouble with it. I want to be able to rotate an object with your fingers. My problem is that I have my object placed at (0, 0, -3), and I would like to rotate it about its center. I know that I need to translate back to the origin, rotate, and then bring it back to the original place. I think I am facing a problem because I am using a matrix to keep track (?) of all of my rotations/translation/scaling etc, and I think it may be combining the operations in a way that order is not even considered (so the two translations would cancel each other). I just started learning OpenGL a day ago and am a complete newbie, so my assumption may be wrong. Here is the part of the in drawView that I am having trouble with: GLfloat matrix[16]; glGetFloatv(GL_MODELVIEW_MATRIX, matrix); glLoadIdentity(); glTranslatef(0, 0, 3); // bring to origin glRotatef(self.angle, self.dy, self.dx, 0); // rotate glTranslatef(0, 0, -3); // put it back in place glMultMatrixf(matrix); // save the transformations performed Help would be much appreciated, thank you!

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  • ActionScript 3.0: placing code on stage/MC timelines a la AS2 instead of in classes

    - by BoltClock
    I'm aware that ActionScript 3.0 is designed from the ground up to be a largely object-oriented language and using it means less or even no timeline code in Flash documents. I'm quite experienced with OOP and am comfortable writing classes. However, since I mostly use Flash for animations, I hardly ever need to write ActionScript code other than for preloaders, subtitles, quality controls, website links and so on. In fact, I still set my Flash movies to use AS2 to this day because I'm used to gotoAndPlay()/gotoAndStop(), AS2 preloaders, subtitles, quality controls and even getURL(). Of course, I really want to move on now that practically everyone's on Flash Player 9 or 10 and now that I've dabbled with other OO languages like Java, C# and Objective-C too. I'm a complete newcomer to AS3 and am not very learned with AS2 either. Considering my current use of ActionScript, are there any cases where it's still OK to use very simple AS3 code in the timeline instead of moving code to a class, especially since moving to a class might mean unnecessarily increasing the number of LOC from 4 to 40? (Heck, is the latter case ('instead of ...') even a valid concern at all?)

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  • What's a good way of building up a String given specific start and end locations?

    - by Michael Campbell
    (java 1.5) I have a need to build up a String, in pieces. I'm given a set of (sub)strings, each with a start and end point of where they belong in the final string. Was wondering if there were some canonical way of doing this. This isn't homework, and I can use any licensable OSS, such as jakarta commons-lang StringUtils etc. My company has a solution using a CharBuffer, and I'm content to leave it as is (and add some unit tests, of which there are none (?!)) but the code is fairly hideous and I would like something easier to read. As I said this isn't homework, and I don't need a complete solution, just some pointers to libraries or java classes that might give me some insight. The String.Format didn't seem QUITE right... I would have to honor inputs too long and too short, etc. Substrings would be overlaid in the order they appear (in case of overlap). As an example of input, I might have something like: String:start:end FO:0:3 (string shorter than field) BAR:4:5 (String larger than field) BLEH:5:9 (String overlays previous field) I'd want to end up with FO BBLEH 01234567890

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  • Python Socket Getting Connection Reset

    - by Ian
    I created a threaded socket listener that stores newly accepted connections in a queue. The socket threads then read from the queue and respond. For some reason, when doing benchmarking with 'ab' (apache benchmark) using a concurrency of 2 or more, I always get a connection reset before it's able to complete the benchmark (this is taking place locally, so there's no external connection issue). class server: _ip = '' _port = 8888 def __init__(self, ip=None, port=None): if ip is not None: self._ip = ip if port is not None: self._port = port self.server_listener(self._ip, self._port) def now(self): return time.ctime(time.time()) def http_responder(self, conn, addr): httpobj = http_builder() httpobj.header('HTTP/1.1 200 OK') httpobj.header('Content-Type: text/html; charset=UTF-8') httpobj.header('Connection: close') httpobj.body("Everything looks good") data = httpobj.generate() sent = conn.sendall(data) def http_thread(self, id): self.log("THREAD %d: Starting Up..." % id) while True: conn, addr = self.q.get() ip, port = addr self.log("THREAD %d: responding to request: %s:%s - %s" % (id, ip, port, self.now())) self.http_responder(conn, addr) self.q.task_done() conn.close() def server_listener(self, host, port): self.q = Queue.Queue(0) sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.bind( (host, port) ) sock.listen(5) for i in xrange(4): #thread count thread.start_new(self.http_thread, (i+1, )) while True: self.q.put(sock.accept()) sock.close() server('', 9999) When running the benchmark, I get totally random numbers of good requests before it errors out, usually between 4 and 500. Edit: Took me a while to figure it out, but the problem was in sock.listen(5). Because I was using apache benchmark with a higher concurrency (5 and up) it was causing the backlog of connections to pile up, at which point the connections started getting dropped by the socket.

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