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• How to undo a changeset using tf.exe rollback

  - by Tarun Arora

  Technorati Tags: Team Foundation Server 2010,Team Foundation Utilities,TFS2010   Oh no! Did you just check in a changeset in to TFS and realized that you need to roll back the changeset because the changes were suppose to go in a different branch? Or did you just accidently merge a wrong changeset in your release branch? There are several ways to undo the damage, Manual: Yes, we all just hate this word but for the record you could manually rollback the changes. Get Specific version on the branch and chose the changeset prior to the one you checked in. After that check out all the files in the changeset and check them in. During the check in you will receive a conflict. At this point choose ‘Keep local changes’ in the conflict resolution window and check in the files. Automated: Yes, we just love it! TFS comes with a very powerful command line utility ‘tf.exe’ that gives you the ability to rollback the effects of one or more changesets to one or more version-controlled items. This command does not remove the changesets from an item's version history. Instead, this command creates in your workspace a set of pending changes that negate the effects of the changesets that you specify. Syntax tf rollback /toversion:VersionSpec ItemSpec [/recursive] [/lock:none|checkin|checkout] [/version:versionspec] [/keepmergehistory] [/login:username,[password]] [/noprompt] tf rollback /changeset:ChangesetFrom~ChangesetTo [ItemSpec] [/recursive] [/lock:none|checkin|checkout] [/version:VersionSpec] [/keepmergehistory] [/noprompt] [/login:username,[password]]   I’ll explain this with an example. Your workspace is at the location C:\myWorkspace You want to rollback changeset # 145621 C:\Workspace\MyBranch>tf.exe rollback /changeset:145621 /recursive How do i rollback/undo a series of changesets? You can also rollback a range of changesets by using the following C:\Workspace\MyBranch>tf.exe rollback /changeset:145601~145621 /recursive This will check out the files in the version control and you should be able to see them in the pending changes. Go on check them in to undo the specific changeset that you just rolled back. Do you completely want to get rid of the changeset from all future merges between the two branches? /KeepMergeHistory: This option has an effect only if one or more of the changesets that you are rolling back include a branch or merge change. Specify this option if you want future merges between the same source and the same target to exclude the changes that you are rolling back. Errors “If you get the message ‘Unable to determine the workspace.’ You may be able to correct this by running ‘tf worksapces /collection:TeamProjectCollectionUrl’” you are in the wrong directory. Make sure that you run the ‘tf rollback’ command from the directory of your workspace.   Status Exit Code Description 0 The operation rolled back all items successfully. 1 The operation rolled back at least one item successfully but could not roll back one or more items. 100 The operation could not roll back any items.   To use the command you must have the Read, Check Out, and Check In permissions set to Allow. So, have you been in a rollback undo situation before?   Share this post :

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• Trace flags - TF 1117

  - by Damian

  I had a session about trace flags this year on the SQL Day 2014 conference that was held in Wroclaw at the end of April. The session topic is important to most of DBA's and the reason I did it was that I sometimes forget about various trace flags :). So I decided to prepare a presentation but I think it is a good idea to write posts about trace flags, too. Let's start then - today I will describe the TF 1117. I assume that we all know how to setup a TF using starting parameters or registry or in the session or on the query level. I will always write if a trace flag is local or global to make sure we know how to use it. Why do we need this trace flag? Let’s create a test database first. This is quite ordinary database as it has two data files (4 MB each) and a log file that has 1MB. The data files are able to expand by 1 MB and the log file grows by 10%: USE [master] GO CREATE DATABASE [TF1117]  ON  PRIMARY ( NAME = N'TF1117',      FILENAME = N'C:\Program Files\Microsoft SQL Server\MSSQL12.SQL2014\MSSQL\DATA\TF1117.mdf' ,      SIZE = 4096KB ,      MAXSIZE = UNLIMITED,      FILEGROWTH = 1024KB ), ( NAME = N'TF1117_1',      FILENAME = N'C:\Program Files\Microsoft SQL Server\MSSQL12.SQL2014\MSSQL\DATA\TF1117_1.ndf' ,      SIZE = 4096KB ,      MAXSIZE = UNLIMITED,      FILEGROWTH = 1024KB )  LOG ON ( NAME = N'TF1117_log',      FILENAME = N'C:\Program Files\Microsoft SQL Server\MSSQL12.SQL2014\MSSQL\DATA\TF1117_log.ldf' ,      SIZE = 1024KB ,      MAXSIZE = 2048GB ,      FILEGROWTH = 10% ) GO Without the TF 1117 turned on the data files don’t grow all up at once. When a first file is full the SQL Server expands it but the other file is not expanded until is full. Why is that so important? The SQL Server proportional fill algorithm will direct new extent allocations to the file with the most available space so new extents will be written to the file that was just expanded. When the TF 1117 is enabled it will cause all files to auto grow by their specified increment. That means all files will have the same percent of free space so we still have the benefit of evenly distributed IO. The TF 1117 is global flag so it affects all databases on the instance. Of course if a filegroup contains only one file the TF does not have any effect on it. Now let’s do a simple test. First let’s create a table in which every row will fit to a single page: The table definition is pretty simple as it has two integer columns and one character column of fixed size 8000 bytes: create table TF1117Tab (      col1 int,      col2 int,      col3 char (8000) ) go Now I load some data to the table to make sure that one of the data file must grow: declare @i int select @i = 1 while (@i < 800) begin       insert into TF1117Tab  values (@i, @i+1000, 'hello')        select @i= @i + 1 end I can check the actual file size in the sys.database_files DMV: SELECT name, (size*8)/1024 'Size in MB' FROM sys.database_files  GO   As you can see only the first data file was  expanded and the other has still the initial size:   name                  Size in MB --------------------- ----------- TF1117                5 TF1117_log            1 TF1117_1              4 There is also other methods of looking at the events of file autogrows. One possibility is to create an Extended Events session and the other is to look into the default trace file:     DECLARE @path NVARCHAR(260); SELECT    @path = REVERSE(SUBSTRING(REVERSE([path]),          CHARINDEX('\', REVERSE([path])), 260)) + N'log.trc' FROM    sys.traces WHERE   is_default = 1; SELECT    DatabaseName,                 [FileName],                 SPID,                 Duration,                 StartTime,                 EndTime,                 FileType =                         CASE EventClass                                     WHEN 92 THEN 'Data'                                    WHEN 93 THEN 'Log'             END FROM sys.fn_trace_gettable(@path, DEFAULT) WHERE   EventClass IN (92,93) AND StartTime >'2014-07-12' AND DatabaseName = N'TF1117' ORDER BY   StartTime DESC;   After running the query I can see the file was expanded and how long did the process take which might be useful from the performance perspective.    Now it’s time to turn on the flag 1117. DBCC TRACEON(1117)   I dropped the database and recreated it once again. Then I ran the queries and observed the results. After loading the records I see that both files were evenly expanded: name                  Size in MB --------------------- ----------- TF1117                5 TF1117_log            1 TF1117_1              5 I found also information in the default trace. The query returned three rows. The last one is connected to my first experiment when the TF was turned off.  The two rows shows that first file was expanded by 1MB and right after that operation the second file was expanded, too. This is what is this TF all about J  

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• Batch convert Malformed PDFs to TIF on Linux

  - by Mike Driscoll

  I need to convert a multipage PDF to TIF, but it appears to be a malformed PDF provided by our client. I tried using ImageMagick and GhostScript, but they do not convert the file correctly. The result is only about 85-90% correct. The only thing I've found that appears to do the job is GIMP, but I can't find an example to use it via its Batch Processing methods for PDFs. Here are the warnings I get from ImageMagick and GhostScript: **** Warning: Tf refers to an unknown resource name: FORMS$.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: P06BOB.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: UN308E.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: P06BOB.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: UN308E.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: P06BOB.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: UN308E.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: UN307A.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: UN104A.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: UN308E.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: UN208E.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: UN308E.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: UN208E.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: HE14BP.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: UN208E.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: UN106E.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: UN208E.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: UN106E.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: UN208E.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: HE08BP.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: HE11BP.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: AR10NP.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: UN308E.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: JIMP2.l Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: HS11C.l Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: FORMS$.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: UN104A.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: UN208E.f Assuming it's a font name. **** Warning: Tf refers to an unknown resource name: UN307E.f Assuming it's a font name. **** This file had errors that were repaired or ignored. **** Please notify the author of the software that produced this **** file that it does not conform to Adobe's published PDF **** specification. I'm open to other suggestions too. Thanks!

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• Disable input fields based on selection from drop down

  - by Thomas

  I have a drop down box and some text input fields below it. Based on which item from the drop down menu the user selects, I would like to disable some of the fields. I think I am failing to target the input fields correctly but I can't figure out what the problem is: Here is the script I have gotten so far: $(document).ready(function(){ var customfield = $('#customfields-tf-19-tf'); var customfield1 = $('#customfields-tf-20-tf'); var customfield2 = $('#customfields-tf-13-tf'); $(function() { var call_table = { 'Condominium': function() { customfield.attr("disabled"); }, 'Co-Op': function() { customfield1.attr("disabled"); }, 'Condop': function() { customfield2.attr("disabled"); } }; $('#customfields-s-18-s').change(function() { call_table[this.value](); }); }); }); And the layout for my form: <td width="260" class="left"> <label for="customfields-s-18-s">Ownership (Required):</label> </td> <td class="right"> <select name="customfields-s-18-s" class="dropdown" id="customfields-s-18-s" size="" > <option value="Condominium"> Condominium</option> <option value="Co-Op"> Co-Op</option> <option value="Condop"> Condop</option> </select> </td> </tr> <tr> <td width="260" class="left"> <label for="customfields-tf-19-tf">Maintenance:</label> </td> <td class="right"> <input type="text" title="Maintenance" class="textInput" name="customfields-tf-19-tf" id="customfields-tf-19-tf" size="40"/> </td> </tr> <tr id="newsletter_topics"> <td width="260" class="left"> <label for="customfields-tf-20-tf">Taxes:</label> </td> <td class="right"> <input type="text" title="Taxes" class="textInput" name="customfields-tf-20-tf" id="customfields-tf-20-tf" size="40" /> </td> </tr> <tr> <td width="260" class="left"> <label for="customfields-tf-13-tf" class="required">Tax Deductibility:</label> </td> <td class="right"> <input type="text" title="Tax Deductibility" class="textInput" name="customfields-tf-13-tf" id="customfields-tf-13-tf" size="40" /> </td> </tr>

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• Term Frequency/Inverse Document frequency (TF-IDF) implementation in C#

  - by kasmit

  i have downloaded source code of Term Frequency/Inverse Document frequency (TF-IDF) implementation in C# from http://www.codeproject.com/KB/cs/tfidf.aspx. but couldn't find way run and test pls help for that did any one having any documentation about Term Frequency/Inverse Document frequency (TF-IDF) implementation in C# pls let me know ablut it

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• Simple implementation of N-Gram, tf-idf and Cosine similarity in Python

  - by seanieb

  I need to compare documents stored in a DB and come up with a similarity score between 0 and 1. The method I need to use has to be very simple. Implementing a vanilla version of n-grams (where it possible to define how many grams to use), along with a simple implementation of tf-idf and Cosine similarity. Is there any program that can do this? Or should I start writing this from scratch?

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• Create a dataset: extract features from text documents (TF-IDF)

  - by BigG

  I've to create a dataset from some text files, writing them as vectors of features. Something like this: doc1: 1,0.45 6,0.001 94,0.1 ... doc2: 3,0.5 98,0.2 ... ... each position of the vector represent a word, and the score is given by something like TF-IDF. Do you know some library/tool/whatever for this? (java is better)

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• How does VS 2005 provide history across all TFS Team Projects when tf.exe cannot?

  - by AakashM

  In Visual Studio 2005, in the TFS Source Control Explorer, these is a top-level node for the TFS Server itself, with a child node for each Team Project. Right-clicking either the server node or the node for a Team Project gives a context menu on which there is a View History item. Selecting this gives you a History window showing the last 200 or so changesets, either for the specific Team Project chosen, or across all Team Projects. It is this history across all Team Projects that I am wondering about. The command-line tf.exe history command provides (as I understand it) basically the same functionality as is provided by the VS TFS Source Control plug-in. But I cannot work out how to get tf.exe history to provide this across-all-Team-Projects history. At a command line, supposing I have C:\ mapped as the root of my workspace, and Foo, Bar, and Baz as Team Projects, I can do C:\> tf history Foo /recursive /stopafter:200 to get the last 200 changesets that affected Team Project Foo; or from within a Team Project folder C:\Bar> tf history *.* /recursive /stopafter:200 which does the same thing for Team Project Bar - note that the wildcard *.* is allowed here. However, none of these work (each gives the error message shown): C:\> tf history /recursive /stopafter:200 The history command takes exactly one item C:\> tf history *.* /recursive /stopafter:200 Unable to determine the source control server C:\> tf history *.* /server:servername /recursive /stopafter:200 Unable to determine the workspace I don't see an option in the docs for tf for specifying a workspace; it seems to only want to determine it from the current folder. So what is VS 2005 doing? Is it internally doing a history on each Team Project in turn and then sticking the results together?? note also that I have tried with Power Tools; tfpt history from the command line gives exactly the same error messages seen here

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• What (tf) are the secrets behind PDF memory allocation (CGPDFDocumentRef)

  - by Kai

  For a PDF reader I want to prepare a document by taking 'screenshots' of each page and save them to disc. First approach is CGPDFDocumentRef document = CGPDFDocumentCreateWithURL((CFURLRef) someURL); for (int i = 1; i<=pageCount; i++) { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc]init]; CGPDFPageRef page = CGPDFDocumentGetPage(document, i); ...//getting + manipulating graphics context etc. ... CGContextDrawPDFPage(context, page); ... UIImage *resultingImage = UIGraphicsGetImageFromCurrentImageContext(); ...//saving the image to disc [pool drain]; } CGPDFDocumentRelease(document); This results in a lot of memory which seems not to be released after the first run of the loop (preparing the 1st document), but no more unreleased memory in additional runs: MEMORY BEFORE: 6 MB MEMORY DURING 1ST DOC: 40 MB MEMORY AFTER 1ST DOC: 25 MB MEMORY DURING 2ND DOC: 40 MB MEMORY AFTER 2ND DOC: 25 MB .... Changing the code to for (int i = 1; i<=pageCount; i++) { CGPDFDocumentRef document = CGPDFDocumentCreateWithURL((CFURLRef) someURL); NSAutoreleasePool *pool = [[NSAutoreleasePool alloc]init]; CGPDFPageRef page = CGPDFDocumentGetPage(document, i); ...//getting + manipulating graphics context etc. ... CGContextDrawPDFPage(context, page); ... UIImage *resultingImage = UIGraphicsGetImageFromCurrentImageContext(); ...//saving the image to disc CGPDFDocumentRelease(document); [pool drain]; } changes the memory usage to MEMORY BEFORE: 6 MB MEMORY DURING 1ST DOC: 9 MB MEMORY AFTER 1ST DOC: 7 MB MEMORY DURING 2ND DOC: 9 MB MEMORY AFTER 2ND DOC: 7 MB .... but is obviously a step backwards in performance. When I start reading a PDF (later in time, different thread) in the first case no more memory is allocated (staying at 25 MB), while in the second case memory goes up to 20 MB (from 7). In both cases, when I remove the CGContextDrawPDFPage(context, page); line memory is (nearly) constant at 6 MB during and after all preparations of documents. Can anybody explain whats going on there?

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• cosine similarity problem

  - by jaskirat

  hi.... i have calculated the tf-idf values of terms of document 1 and document 2..now i dont know how to use these tf-idf values...basically i want to find similarity between two documents(in my case are webpages)..can any body tell how to implement cosine similarity, jaccard coefficient to find similarity...c# code would be appreciated..pls help...thanks

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• Batch File to Delete Folders

  - by Homebrew

  I found some code to delete folders, in this case deleting all but 'n' # of folders. I created 10 test folders, plus 1 that was already there. I want to delete all but 4. The code works, it leaves 4 of my test folders, except that it also leaves the other folder. Is there some attribute of the other folder that's getting checked in the batch file that's stopping it from getting deleted ? It was created through a job a couple of weeks ago. Here's the code I stole (but don't really understand the details): rem DOS - Delete Folders if # folders > n @Echo Off :: User Variables :: Set this to the number of folders you want to keep Set _NumtoKeep=4 :: Set this to the folder that contains the folders to check and delete Set _Path=C:\MyFolder_Temp\FolderTest If Exist "%temp%\tf}1{" Del "%temp%\tf}1{" PushD %_Path% Set _s=%_NumtoKeep% If %_NumtoKeep%==1 set _s=single For /F "tokens=* skip=%_NumtoKeep%" %%I In ('dir "%_Path%" /AD /B /O-D /TW') Do ( If Exist "%temp%\tf}1{" ( Echo %%I:%%~fI >>"%temp%\tf}1{" ) Else ( Echo.>"%temp%\tf}1{" Echo Do you wish to delete the following folders?>>"%temp%\tf}1{" Echo Date Name>>"%temp%\tf}1{" Echo %%I:%%~fI >>"%temp%\tf}1{" )) PopD If Not Exist "%temp%\tf}1{" Echo No Folders Found to delete & Goto _Done Type "%temp%\tf}1{" | More Set _rdflag= /q Goto _Removeold Set _rdflag= :_Removeold For /F "tokens=1* skip=3 Delims=:" %%I In ('type "%temp%\tf}1{"') Do ( If "%_rdflag%"=="" Echo Deleting rd /s%_rdflag% "%%J") :_Done If Exist "%temp%\tf}1{" Del "%temp%\tf}1{"

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• Using Git with TFS projects

  If you having been following the updates to CodePlex over the last several months you will have noticed that we added support for Git source control. It is important to the CodePlex team to enable developers to use the source control system that supports their development style whether it is distributed version control or centralized version control. There are many projects on CodePlex that are using TFS centralized version control. But we continue to see more and more developers interested in using Git. Last week Brian Harry announced a new open source project called Git-TF. Git-TF is a client side bridge that enabled developer to use Git locally and push to a remote backed by Team Foundation version control. Git-TF also works great for TFS based projects on CodePlex. You may already be familiar with git-tfs. Git-TFS is a similar client side bridge between Git and TFS. Git-TFS works great if you are on Windows since it depends on the TFS .Net client object model. Git-TF adds the ability to use a Git to TFS bridge on multiple platforms since it is written in Java. You can use it on Mac OS X, Linux, and Windows, etc. Since you are connecting to a TFS Server when using Git-TF make sure you use your CodePlex TFS account name: snd\YOUR_USERNAME_cp along with your password. At this point, you will need to be a member of the project to connect using Git-TF. Resources Git-TF Getting Started Guide Download: Git-TF Git-TF Source on CodePlex

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• about cosine similarity

  - by jaskirat

  hi i m finding cosine similarity between documents ..i did like dis D1=(8,0,0,1) where 8,0,0,1 are the tf-idf scores of the terms t1, t2, t3 , t4 D2=(7,0,0,1) cos(theta) = (56 + 0 + 0 + 1) / sqrt(64 + 49) sqrt(1 +1 ) which comes out to be cos(theta)= 5 now what do i evaluate from this value...i dont get it wat does cos(theta)=5 signify about the similarity between them...pls reply ..Am i doing things right ??????????..pls do reply guys.. will be thank ful to you..

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• Oracle ADF 11g - Einladung zu den News Online Sessions - n&auml;chster Termin: 18. M&auml;rz 2011

  - by heidrun.walther

  Was ist ADF? ADF steht für Oracle Application Develoment Framework. ADF setzt die JEE Standards um und erweitert deren Funktionalität insbesondere im Hinblick auf die Vielzahl der zur Verfügung gestellten Komponenten (insbesondere im Hinblick auf die Visualisierung) und im Bereich der Ablaufsteuerung (Taskflows ersetzen Pageflows). ADF ist einer der Bausteine, auf denen die Entwicklung aller neuen Oracle Anwendungssysteme beruht (inkl. Vertical Solutions und der Administrationswerkzeuge). Das verwendete Entwicklungswerkzeug ist der Oracle JDeveloper. Rapid Application Development (RAD) wird durch eine deklarative, Metadaten getriebene Entwicklung ermöglicht, die auf allen Ebenen in starkem Maße mit Templating (also der Möglichkeit, mit vorgegebenen Mustern zu arbeiten) und mit Wiederverwendbarkeit arbeitet. Entwicklung und Dokumentation erfolgen in einem Schritt. ADF arbeitet nahtlos mit den anderen Oracle SOA Werkzeugen zusammen und bringt ein Rollen-/ Policy getriebenes Zugriffssystem mit. Es ist in das Oracle Identity Management integrierbar. ADF News Online Sessions? Die ADF News Online Sessions geben Tipps von Anwendern/Entscheidern für Anwender/Entscheider und bieten einen Ideenaustausch für den Einsatz von ADF bzw. für die Umsetzung von ADF Projekten. Die jeweiligen  Referenten sind Mitarbeiter von Oracle Partnerunternehmen und Oracle ADF-Spezialisten. Hier die Inhalte derVierte News-Staffel: 18.02.11 - Managing Migrationsprojekte: Forms - ADF / Erfahrungsbericht 04.03.11 - Using Groovy in Oracle ADF Business Components (english) 18.03.11 - Taskflow orientierte Entwicklung mit UI Shell 01.04.11 - erste Konzept, Überblick, Integration Desktop ADF 15.04.11 - ADF Best Practice: ADF BC Strukturierung 29.04.11 - Anpassung von ADF Anwendungen zur Laufzeit (Endanwender) mit Oracle WebCenter Sie erhalten die Einwahldaten für die jeweilige Session, wenn Sie sich entweder in den Mailverteiler aufnehmen lassen (Mail an [email protected]) oder über die ADF Community Seiten auf XING, indem Sie sich für die betreffende Session anmelden. Oracle ADF Community? Die Oracle ADF Community setzt sich das Ziel, Informationen und Erfahrungen zu Oracle ADF auszutauschen und damit die Entwicklungs-Plattform Oracle Application Development Framework (ADF) unter Entwicklern, Anwendern und IT-Dienstleistern bekannter zu machen. Sie sind herzlich eingeladen, sich aktiv daran zu beteiligen. Mehr unter ADF Community Gruppe auf Xing

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• Possible to manipulate UI elements via dispatchEvent()?

  - by rinogo

  Hi all! I'm trying to manually dispatch events on a textfield so I can manipulate it indirectly via code (e.g. place cursor at a given set of x/y coordinates). However, my events seem to have no effect. I've written a test to experiment with this phenomenon: package sandbox { import flash.display.Sprite; import flash.events.MouseEvent; import flash.text.TextField; import flash.text.TextFieldType; import flash.text.TextFieldAutoSize; import flash.utils.setTimeout; public class Test extends Sprite { private var tf:TextField; private var tf2:TextField; public function Test() { super(); tf = new TextField(); tf.text = 'Interact here'; tf.type = TextFieldType.INPUT; addChild(tf); tf2 = new TextField(); tf2.text = 'Same events replayed with five second delay here'; tf2.autoSize = TextFieldAutoSize.LEFT; tf2.type = TextFieldType.INPUT; tf2.y = 30; addChild(tf2); tf.addEventListener(MouseEvent.CLICK, mouseListener); tf.addEventListener(MouseEvent.DOUBLE_CLICK, mouseListener); tf.addEventListener(MouseEvent.MOUSE_DOWN, mouseListener); tf.addEventListener(MouseEvent.MOUSE_MOVE, mouseListener); tf.addEventListener(MouseEvent.MOUSE_OUT, mouseListener); tf.addEventListener(MouseEvent.MOUSE_OVER, mouseListener); tf.addEventListener(MouseEvent.MOUSE_UP, mouseListener); tf.addEventListener(MouseEvent.MOUSE_WHEEL, mouseListener); tf.addEventListener(MouseEvent.ROLL_OUT, mouseListener); tf.addEventListener(MouseEvent.ROLL_OVER, mouseListener); } private function mouseListener(event:MouseEvent):void { //trace(event); setTimeout(function():void {trace(event); tf2.dispatchEvent(event);}, 5000); } } } Essentially, all this test does is to use setTimeout to effectively 'record' events on TextField tf and replay them five seconds later on TextField tf2. When an event is dispatched on tf2, it is traced to the console output. The console output upon running this program and clicking on tf is: [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=0 localY=1 stageX=0 stageY=1 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="rollOver" bubbles=false cancelable=false eventPhase=2 localX=0 localY=1 stageX=0 stageY=1 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseOver" bubbles=true cancelable=false eventPhase=3 localX=0 localY=1 stageX=0 stageY=1 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=2 localY=1 stageX=2 stageY=1 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=2 localY=2 stageX=2 stageY=2 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=2 localY=3 stageX=2 stageY=3 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=3 localY=3 stageX=3 stageY=3 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=5 localY=3 stageX=5 stageY=3 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=6 localY=5 stageX=6 stageY=5 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=7 localY=5 stageX=7 stageY=5 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=9 localY=5 stageX=9 stageY=5 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=10 localY=5 stageX=10 stageY=5 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=11 localY=5 stageX=11 stageY=5 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=12 localY=5 stageX=12 stageY=5 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseDown" bubbles=true cancelable=false eventPhase=3 localX=12 localY=5 stageX=12 stageY=5 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseUp" bubbles=true cancelable=false eventPhase=3 localX=12 localY=5 stageX=12 stageY=5 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="click" bubbles=true cancelable=false eventPhase=3 localX=12 localY=5 stageX=12 stageY=5 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=10 localY=4 stageX=10 stageY=4 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=9 localY=2 stageX=9 stageY=2 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseMove" bubbles=true cancelable=false eventPhase=3 localX=9 localY=1 stageX=9 stageY=1 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="mouseOut" bubbles=true cancelable=false eventPhase=3 localX=-1 localY=-1 stageX=-1 stageY=-1 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] [MouseEvent type="rollOut" bubbles=false cancelable=false eventPhase=2 localX=-1 localY=-1 stageX=-1 stageY=-1 relatedObject=null ctrlKey=false altKey=false shiftKey=false delta=0] As we can see, the events are being captured and replayed successfully. However, no change occurs in tf2 - the mouse cursor does not appear in tf2 as we would expect. In fact, the cursor remains in tf even after the tf2 events are dispatched. Please help! Thanks, -Rich

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• 3D rotation matrices deform object while rotating

  - by Kevin

  I'm writing a small 3D renderer (using an orthographic projection right now). I've run into some trouble with my 3D rotation matrices. They seem to squeeze my 3D object (a box primitive) at certain angles. Here's a live demo (only tested in Google Chrome): http://dl.dropbox.com/u/109400107/3D/index.html The box is viewed from the top along the Y axis and is rotating around the X and Z axis. These are my 3 rotation matrices (Only rX and rZ are being used): var rX = new Matrix([ [1, 0, 0], [0, Math.cos(radiants), -Math.sin(radiants)], [0, Math.sin(radiants), Math.cos(radiants)] ]); var rY = new Matrix([ [Math.cos(radiants), 0, Math.sin(radiants)], [0, 1, 0], [-Math.sin(radiants), 0, Math.cos(radiants)] ]); var rZ = new Matrix([ [Math.cos(radiants), -Math.sin(radiants), 0], [Math.sin(radiants), Math.cos(radiants), 0], [0, 0, 1] ]); Before projecting the verticies I multiply them by rZ and rX like so: vert1.multiply(rZ); vert1.multiply(rX); vert2.multiply(rZ); vert2.multiply(rX); vert3.multiply(rZ); vert3.multiply(rX); The projection itself looks like this: bX = (pos.x + (vert1.x*scale)); bY = (pos.y + (vert1.z*scale)); Where "pos.x" and "pos.y" is an offset for centering the box on the screen. I just can't seem to find a solution to this and I'm still relativly new to working with Matricies. You can view the source-code of the demo page if you want to see the whole thing.

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• Cloud Based Load Testing Using TF Service &amp; VS 2013

  - by Tarun Arora [Microsoft MVP]

  Originally posted on: http://geekswithblogs.net/TarunArora/archive/2013/06/30/cloud-based-load-testing-using-tf-service-amp-vs-2013.aspx One of the new features announced as part of the Visual Studio 2013 Ultimate Preview is ‘Cloud Based Load Testing’. In this blog post I’ll walk you through, What is Cloud Based Load Testing? How have I been using this feature? – Success story! Where can you find more resources on this feature? What is Cloud Based Load Testing? It goes without saying that performance testing your application not only gives you the confidence that the application will work under heavy levels of stress but also gives you the ability to test how scalable the architecture of your application is. It is important to know how much is too much for your application! Working with various clients in the industry I have realized that the biggest barriers in Load Testing & Performance Testing adoption are, High infrastructure and administration cost that comes with this phase of testing Time taken to procure & set up the test infrastructure Finding use for this infrastructure investment after completion of testing Is cloud the answer? 100% Visual Studio Compatible Scalable and Realistic Start testing in < 2 minutes Intuitive Pay only for what you need Use existing on premise tests on cloud There are a lot of vendors out there offering Cloud Based Load Testing, to name a few, Load Storm Soasta Blaze Meter Blitz And others… The question you may want to ask is, why should you go with Microsoft’s Cloud based Load Test offering. If you are a Microsoft shop or already have investments in Microsoft technologies, you’ll see great benefit in the natural integration this offers with existing Microsoft products such as Visual Studio and Windows Azure. For example, your existing Web tests authored in Visual Studio 2010 or Visual Studio 2012 will run on the cloud without requiring any modifications what so ever. Microsoft’s cloud test rig also supports API based testing, for example, if you are building a WPF application which consumes WCF services, you can write unit tests to invoke the WCF service, these tests can be run on the cloud test rig and loaded with ‘N’ concurrent users for performance testing. If you have your assets already hosted in the Azure and possibly in the same data centre as the Cloud test rig, your Azure app will not incur a usage cost because of the generated traffic since the traffic is coming from the same data centre. The licensing or pricing information on Microsoft’s cloud based Load test service is yet to be announced, but I would expect this to be priced attractively to match the market competition.   The only additional configuration required for running load tests on Microsoft Cloud based Load Tests service is to select the Test run location as Run tests using Visual Studio Team Foundation Service, How have I been using Microsoft’s Cloud based Load Test Service? I have been part of the Microsoft Cloud Based Load Test Service advisory council for the last 7 months. This gave the opportunity to see the product shape up from concept to working solution. I was also the first person outside of Microsoft to try this offering out. This gave me the opportunity to test real world application at various clients using the Microsoft Load Test Service and provide real world feedback to the Microsoft product team. One of the most recent systems I tested using the Load Test Service has been an insurance quote generation engine. This insurance quote generation engine is,   hosted in Windows Azure expected to get quote requests from across the globe expected to handle 5 Million quote requests in a day (not clear how this load will be distributed across the day) There was no way, I could simulate such kind of load from on premise without standing up additional hardware. But Microsoft’s Cloud based Load Test service allowed me to test my key performance testing scenarios, i.e. Simulate expected Load, Endurance Testing, Threshold Testing and Testing for Latency. Simulating expected load: approach to devising a load pattern My approach to devising a load test pattern has been to run the test scenario with 1 user to figure out the response time. Then work out how many users are required to reach the target load. So, for example, to invoke 1 quote from the quote engine software takes 0.5 seconds. Now if you do the math,   1 quote request by 1 user = 0.5 seconds   quotes generated by 1 user in 24 hour = 1 * (((2 * 60) * 60) * 24) = 172,800   quotes generated by 30 users in 24 hours = 172,800 * 30 =  5,184,000 This was a very simple example, if your application requires more concurrent users to test scenario’s such as caching, etc then you can devise your own load pattern, some examples of load test patterns can be found here.  Endurance Testing To test for endurance, I loaded the quote generation engine with an expected fixed user load and ran the test for very long duration such as over 48 hours and observed the affect of the long running test on the Azure infrastructure. Currently Microsoft Load Test service does not support metrics from the machine under test. I used Azure diagnostics to begin with, but later started using Cerebrata Azure Diagnostics Manager to capture the metrics of the machine under test. Threshold Testing To figure out how much user load the application could cope with before falling on its belly, I opted to step load the quote generation engine by incrementing user load with different variations of incremental user load per minute till the application crashed out and forced an IIS reset. Testing for Latency Currently the Microsoft Load Test service does not support generating geographically distributed load, I however, deployed the insurance quote generation engine in different Azure data centres and ran the same set of performance tests to measure for latency. Because I could compare load test results from different runs by exporting the results to excel (this feature is provided out of the box right from Visual Studio 2010) I could see the different in response times. More resources on Microsoft Cloud based Load Test Service A few important links to get you started, Download Visual Studio Ultimate 2013 Preview Getting started guide for load testing using Team Foundation Service Troubleshooting guide for FAQs and known issues Team Foundation Service forum for questions and support Detailed demo and presentation (link to Tech-Ed session recording) Detailed demo and presentation (link to Build session recording) There a few limits on the usage of Microsoft Cloud based Load Test service that you can read about here. If you have any feedback on Microsoft Cloud based Load Test service, feel free to share it with the product team via the Visual Studio User Voice forum. I hope you found this useful. Thank you for taking the time out and reading this blog post. If you enjoyed the post, remember to subscribe to http://feeds.feedburner.com/TarunArora. Stay tuned!

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• Ngram IDF smoothing

  - by adi92

  I am trying to use IDF scores to find interesting phrases in my pretty huge corpus of documents. I basically need something like Amazon's Statistically Improbable Phrases, i.e. phrases that distinguish a document from all the others The problem that I am running into is that some (3,4)-grams in my data which have super-high idf actually consist of component unigrams and bigrams which have really low idf.. For example, "you've never tried" has a very high idf, while each of the component unigrams have very low idf.. I need to come up with a function that can take in document frequencies of an n-gram and all its component (n-k)-grams and return a more meaningful measure of how much this phrase will distinguish the parent document from the rest. If I were dealing with probabilities, I would try interpolation or backoff models.. I am not sure what assumptions/intuitions those models leverage to perform well, and so how well they would do for IDF scores. Anybody has any better ideas?

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• How do I rollback a TFS check-in?

  - by Lance Robinson

  I can never remember how to rollback a check-in, and there all kinds of mess in search results about this (change between different versions of TFS etc), so I thought I’d just put this here so I won’t forget anymore.  :)  Thanks to @manningj, TFS genius. Just drop to the command line and use tf.exe. Example: tf /changeset:12345 For more on the tf.exe commands: tf help Technorati Tags: Visual Studio,Team Foundation,Rollback

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• Java-Maven: How to add manually a library to the maven repository?

  - by Aaron

  I'm trying to generate a jasperReport, but I receive this: net.sf.jasperreports.engine.util.JRFontNotFoundException: Font 'Times New Roman' is not available to the JVM. See the Javadoc for more details. After searching on the net, I found that I need to add a jar to the classpath with the font. So, I create a jar file with the ttf files and now I want to add this as a dependency to my pom file. So: I installed the file : mvn install:install-file -Dfile=tf.jar -DgroupId=tf -DartifactId=tf -Dversion=1.0.0 -Dpackaging=jar and in my pom, I added these lines: <dependency> <groupId>tf</groupId> <artifactId>tf</artifactId> <version>1.0.0</version> </dependency> but I receive this: Dependency 'tf:tf:1.0.0' not found less I checked the repository folder and the jar file is there, in ... tf\tf\1.0.0\ What I'm doing wrong?

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• for (i in xxx) ggplot problem

  - by Andreas

  This is strange - I think? library(ggplot2) tf <- which(sapply(diamonds, is.factor)) diamonds.tf <- diamonds[,tf] So far so good. But next comes the trouble: pl.f <- ggplot(diamonds.tf, aes(x=diamonds.tf[,i]))+ geom_bar()+ xlab(names(diamonds.tf[i])) for (i in 1:ncol(diamonds.tf)) { ggsave(paste("plot.f",i,".png",sep=""), plot=pl.f, height=3.5, width=5.5) } This saves the plots in my working directory - but with the wrong x-label. I think this is strange since calling ggplot directly produces the right plot: i <- 2 ggplot(diamonds, aes(x=diamonds[,i]))+geom_bar()+xlab(names(diamonds)[i]) I don't really know how to describe this as a fitting title - suggestions as to a more descriptive question-title is most welcome. Thanks in advance

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• ActionScript 3.0 Getting Size/Coordinates From Loader Content

  - by TheDarkIn1978

  i'm attempting to position a textfield to the bottom left of an image that is added to the display list from the Loader() class. i don't know how to access the width/height information of the image. var dragSprite:Sprite = new Sprite(); this.addChild(dragSprite); var imageLoader:Loader = new Loader(); imageLoader.load(new URLRequest("picture.jpg")); imageLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, displayPic, false, 0, true); function displayPic(evt:Event):void { dragSprite.addChild(evt.target.content); evt.target.removeEventListener(Event.COMPLETE, displayPic); } var tf:TextField = new TextField(); tf.text = "Picture Title"; tf.width = 200; tf.height = 14; tf.x //same x coordinate of dragSprite tf.y //same y coordinate of dragSprite, plus picture height, plus gap between picture and text addChild(tf); within the displayPic function, i could assign the evt.target.content.height and evt.target.content.width to variables that i could use to position the text field, but i assume there is a better way?

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• How do I make my multicast program work between computers on different networks?

  - by George

  I made a little chat applet using multicast. It works fine between computers on the same network, but fails if the computers are on different networks. Why is this? import java.io.*; import java.net.*; import java.awt.*; import java.awt.event.*; import javax.swing.*; public class ClientA extends JApplet implements ActionListener, Runnable { JTextField tf; JTextArea ta; MulticastSocket socket; InetAddress group; String name=""; public void start() { try { socket = new MulticastSocket(7777); group = InetAddress.getByName("233.0.0.1"); socket.joinGroup(group); socket.setTimeToLive(255); Thread th = new Thread(this); th.start(); name =JOptionPane.showInputDialog(null,"Please enter your name.","What is your name?",JOptionPane.PLAIN_MESSAGE); tf.grabFocus(); }catch(Exception e) {e.printStackTrace();} } public void init() { JPanel p = new JPanel(new BorderLayout()); ta = new JTextArea(); ta.setEditable(false); ta.setLineWrap(true); JScrollPane sp = new JScrollPane(ta); p.add(sp,BorderLayout.CENTER); JPanel p2 = new JPanel(); tf = new JTextField(30); tf.addActionListener(this); p2.add(tf); JButton b = new JButton("Send"); b.addActionListener(this); p2.add(b); p.add(p2,BorderLayout.SOUTH); add(p); } public void actionPerformed(ActionEvent ae) { String message = name+":"+tf.getText(); tf.setText(""); tf.grabFocus(); byte[] buf = message.getBytes(); DatagramPacket packet = new DatagramPacket(buf,buf.length, group,7777); try { socket.send(packet); } catch(Exception e) {} } public void run() { while(true) { byte[] buf = new byte[256]; String received = ""; DatagramPacket packet = new DatagramPacket(buf, buf.length); try { socket.receive(packet); received = new String(packet.getData()).trim(); } catch(Exception e) {} ta.append(received +"\n"); ta.setCaretPosition(ta.getDocument().getLength()); } } }

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• Problem with adjacent function in prototype

  - by xain

  Hi, I have this code: <input name="rz" class="required validate-string" style="margin-left:17px" id="rz" title="Input rz value" size="23" /> <p class="msg" style="display:none;">Input rz value</p> In the head I have: Event.observe(window, 'load', function() { $$("input").each(function(field){ Event.observe(field, "focus", function(input) { input.adjacent('p.msg').show(); }); Event.observe(field, "blur", function(input) { input.adjacent('p.msg').hide(); }); }); }); The idea is that when the input get the focus, the p element appears and on blur it goes away. The problem is that neither is working, and the error console shows "input.adjacent is not a function" I'm using prototype 1.6.1 and scriptaculous 1.8.3

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• Why aren't operator conversions implicitly called for templated functions? (C++)

  - by John Gordon

  I have the following code: template <class T> struct pointer { operator pointer<const T>() const; }; void f(pointer<const float>); template <typename U> void tf(pointer<const float>); void g() { pointer<float> ptr; f(ptr); tf(ptr); } When I compile the code with gcc 4.3.3 I get a message (aaa.cc:17: error: no matching function for call to ‘tf(pointer<float>&)’) indicating that the compiler called 'operator pointer<const T>' for the non-templated function f(), but didn't for the templated function tf(). Why and is there any workaround short of overloading tf() with a const and non-const version? Thanks in advance for any help.

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