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• Sliding Response after a Point-Square Collision

  - by mars

  In general terms and pseudo-code, what would be the best way to have a collision response of sliding along a wall if the wall is actually just a part of an entire square that a point is colliding into? The collision test method used is a test to see if the point lies in the square. Should I divide the square into four lines and just calculate the shortest distance to the line and then move the point back that distance?If so, then how can I determine which edge of the square the point is closest to after collision?

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• how to do a smooth scrolling + fade in live feed with jquery?

  - by ijjo

  i've found a lot of news ticker plugins that kinda do what i need, but not exactly. i want to do exactly what twitter.com does on their home page with the "Top Tweets". facebook also does this on their feed. basically whenever i have a new item i want all the LIs to scroll down, make room for the new LI on top, and fade it in. the newsticker plugins i've seen all scroll through a set amount of LIs, but i want to dynamically add a new one...

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• PostgreSQL like + Hibernate problem

  - by Marat_Galiev

  Hi all. I want to do search in PostgreSQL for INTEGER based columns. if (!sSearch.isEmpty()) { sSearch = sSearch.replaceAll("[^a-zA-Z0-9]", "_").toLowerCase(); String[] search = sSearch.split(" "); sWhere = " "; for (NewsColumns column : NewsColumns.values()) { for (String s : search) { sWhere += "lower(" + column + "::TEXT) LIKE '%" + s + "%' OR "; } } sWhere = sWhere.substring(0,sWhere.length()-3); } Ok, I want to convert INT value to String before search, with '::TEXT' expression. But after executing I'm getting: org.hibernate.QueryException: Not all named parameters have been set: [:TEXT] [select * from news WHERE lower(ID::TEXT) LIKE '%5%' Exception. Looks like hibernate parse my convert exp as parameter. Any help is appreciated. Thanks.

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• Git for Local Branches

  - by Rachel

  How can I differentiate between two local branches in git ? How can I copy one local branch to another local branch ? In general how can I perform difference operation between two local branches on my server using git. I tried looking it up online but there is not enough documentation on that or there is not clear documentation on that. Any suggestions or links to useful material would be highly appreciated. Thanks.

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• Small cool apps

  - by subSeven

  What small and cool applications that can be helpful for programmer do you know ? I think about programs that not very famous. I know three: http://advsys.net/ken/download.htm EvalDraw - for protoyping games http://www.drpetter.se/project_sfxr.html sfxr - for makeing sound http://www.kloonigames.com/blog/general/timelog timelog - for mangament time of project

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• Is ImageX needed after Sysprep when preparing a Virtual PC for copying?

  - by Toddintr

  I have researched this question and there seems to be two methods: 1) Run Sysprep, and 2) Run Sysprep followed by ImageX (this is what Microsoft says should be done). What does ImageX do and any pointers on the general process to follow? Thanks, -Todd

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• Java2D: Capturing an event on a Line object

  - by Algorist

  I have a JPanel which has a line, circle etc..Now when I click on the line, will the event get reported as a line event or a general jframe event. I need to be able to move the line, if the user clicks on the line and moves it. Is this possible in Java2d. Thank you.

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• cannot assing <null> to implicit types local variable using asp.net

  - by rockers

  I have this var result = general.GetInformation(int.Parse(ID), F_account, F_Info, Types); this GetInformation is my Entity.Getinformation class.. when I am trying to assing result globly I am getting Cannot Assing to implicit typed local variable? var result = ? what should I assing in global? thanks

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• How to process large block data visualization with Flex?

  - by hydra1983

  I know that's a big topic. However, it's better to know some general ideas to handle such problems. I have an application which requires Flex to render statistics data calculated instantly on the client side from a downloaded data set. The problems are: the data set is large and needs more than 10 seconds to be downloaded. there are some filters to control the statistics calculation algorithms. If user changes the filters, it would take a long time to recalculate the result and freeze the UI.

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• How to force a line break after each image in Safari Reader?

  - by futlib

  I was unable to activate Safari Reader in a local HTML file, so I cannot give you a running example but only describe my problem: The markup of my blog posts is basically this: <div class="post"> <div class="post-header">Hello, World</div> <div class="post-body"> <p>Look at this picture:</p> <p><img src="http://37prime.com/news/wp-content/uploads/2008/03/safari_icon.png"/></p> <p>Isn't that a nice picture?</p> </div> </div> This looks as expected in all browsers, including Safari. In Safari Reader however, the third paragraph "Isn't that a nice picture?" is floating around the image, instead of being on a paragraph of it's own. Has anybody experienced a similar problem?

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• Calculated group-by fields in MongoDB

  - by Navin Viswanath

  For this example from the MongoDB documentation, how do I write the query using MongoTemplate? db.sales.aggregate( [ { $group : { _id : { month: { $month: "$date" }, day: { $dayOfMonth: "$date" }, year: { $year: "$date" } }, totalPrice: { $sum: { $multiply: [ "$price", "$quantity" ] } }, averageQuantity: { $avg: "$quantity" }, count: { $sum: 1 } } } ] ) Or in general, how do I group by a calculated field?

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• How to print element values when iterating through XML document in PHP

  - by pharma_joe

  I am iterating through the results of a service call to yahoo news thus: //Send service request if (!$yahooResults = file_get_contents($yahooRequest)) { echo 'Error processing service request'; } //Read result into xml document $yahooResultXml = new DOMDocument('1.0', 'UTF-8'); $yahooResultXml-loadXML($yahooResults); //Build page include_once('components/pageHeader.php'); echo 'Search Results'; //echo $yahooResultXml-saveHTML(); //Iterate over each Result node $stories = $yahooResultXml-getElementsByTagName('Result'); foreach ($stories as $story) { //Title //Summary //Url //Source //Language //Publish Date //Modification Date } include_once('components/pageFooter.php'); Each Title is in a Title node within a Result Node. I cannot figure out how to simply echo the content of the Title node!

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• Installing ExcelPackage with Visual Studio 2008 with C#

  - by Napoli

  I need to install the ExcelPackage library on Visual Studio 2008. The .zip file I downloaded from their website (http://excelpackage.codeplex.com) contains a .dll, a .xml file, a "GacReg.exe" and a file called ExcelPackage (with this description: "Program Debug Database"). What are the steps to installing this library, or any library in general? I appreciate the help.

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• How do I find the location of Python module sources?

  - by Daryl Spitzer

  How do I learn where the source file for a given Python module is installed? (Is the method is different on Windows than Linux?) (I want to look at the datetime module sources, but I thought I'd ask a more general question.)

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• Create thread is not accepting the member functon

  - by prabhakaran

  I am trying to create a class for network programming. This will create a general purpose socket with thread. But when I tried to creat the thread using createthread(). The third argument is producing errors. And from the net I came to know that I can't use the member functions as a argument to the createthread(). Is there any thing by which I can achieve this.

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• List of drugs for sample data

  - by Skoder

  Where can I find a list of common medical drugs? Researching and typing 150+ drug names would be quite inefficient. In general, are there any sites which have a list of items for developers to use in applications? For example, you can download dictionaries in specific formats (e.g. XML) for use in word games.

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• Octave / Matlab: Extend a vector making it repeat itself?

  - by Tom

  Hi everyone, Is there a way to extend a vector by making it repeat itself? >v = [1 2]; >v10 = v x 5; %x represents some function. Something like "1 2" x 5 in perl Then v10 would be: >v10 1 2 1 2 1 2 1 2 1 2 This should work for the general case, not just for [1 2] Thanks in advance !

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• How significant are JPA lazy loading performance benefits?

  - by Robert

  I understand that this is highly specific to the concrete application, but I'm just wondering what's the general opinion, or at least some personal experiences on the issue. I have an aversion towards the 'open session in view' pattern, so to avoid it, I'm thinking about simply fetching everything small eagerly, and using queries in the service layer to fetch larger stuff. Has anyone used this and regretted it? And is there maybe some elegant solution to lazy loading in the view layer that I'm not aware of?

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• Maintaining sort order of database table rows

  - by Lox

  Say I have at database table containing information about a news article in each row. The table has an integer "sort" column to dictate the order in which the articles are to be presented on a web site. How do I best implement and maintain this sort order. The problem I want to avoid is having the the articles numbered 1,2,3,4,..,100 and when article number 50 suddenly becomes interesting it gets its sort number set to 1 and then all articles between them must have their sort number increased by one. Sure, setting initial sort numbers to 100,200,300,400 etc. leaves some space for moving around but at some point it will break. Is there a correct way to do this, maybe a completely different approach? Added-1: All article titles are shown in a list linking to the contents, so yes all sorted items are show at once. Added-2: An item is not necessarily moved to the top of the list; any item can be placed anywhere in the ordered list.

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• Screen capture during testing

  - by Edwward

  This is an application for reviewing performance tests. Simple in concept, tricky to describe. Picture: 1) Recording interactions with a WPF program so the inputs can be played back. 2) Playing the inputs back while doing a continuous screen capture. 3) Capturing wall time as well as continuous CPU percentages during playback. 4) Repeating steps (2) and (3) lots of times. 5) Writing the relevant stuff out to files/db. 6) Reading it and putting it all in a fancy UI for easy review/analysis. The killer for me is (2). I could use some guidance on a good, possibly commercial, screen capture SDK. I would also welcome the news that my whole problem already has a solution. And of course any thoughts on the overall idea would also be great. Thanks. Ed

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• UIViewScrollviw UITableView subview scrolling. IOS

  - by user1484810

  I have a UIScrollview with a UITableview subview. The UIScrollview scrolls the UITableView horizontally. The UITable view naturally scrolls up and down. If a user places their finger on the UitableView, and moves (swipes) horizontally, The delegate method below is invoked (void)scrollViewDidScroll:(UIScrollView *)scrollView with scrollView isEqual theUIScrollView If the user lifts their finger and places it back down on the UITableView and moves in a vertical direction The delegate method below is invoked (void)scrollViewDidScroll:(UIScrollView *)scrollView with scrollView isEqual = theUITable If however the user places their finger and moves in a horizontally (void)scrollViewDidScroll:(UIScrollView *)scrollView with scrollView isEqual theUIScrollView If the user then moves the finger (without lifting it) in a vertical direction. delegate method scrollViewDidScroll is not invoked at all. (The reverse is true too.) I note that the "Pulse News" app seems to behave in the above manner.. Ultimately I want to figure out how to get the UITableView and UIScrollview moving in a "unidirectional" fashion, with one finger kept on the screen. Thanks...

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• Redirecting exec output to a buffer or file

  - by devin

  I'm writing a C program where I fork(), exec(), and wait(). I'd like to take the output of the program I exec'ed to write it to file or buffer. For example, if I exec ls I want to write file1 file2 etc to buffer/file. I don't think there is a way to read stdout, so does that mean I have to use a pipe? Is there a general procedure here that I haven't been able to find?

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• Why do so many programmers consider Visual Basic a poor language? [closed]

  - by Mike

  Why do programmers consider Visual Basic a bad language? Putting aside any gripes with Microsoft or with proprietary/non-free software in general, and looking the language itself. Syntax, style, etc. I have just started using it, and find the syntax rather terrible. But I'm wondering what are the most common specific problems.

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• So - vuvuzelas. any programming equivalents ?? [closed]

  - by jim

  Hi All, I'm sure we've all been exposed over the past few days to the delights of the vuvuzela (see http://news.bbc.co.uk/1/hi/magazine/8738604.stm). In an attempt to mask the waspish 'parp' from our living rooms, tv sound engineers are devising all sorts of filters to try and 'calm' the abhoration :). some tho say that it simply 'adds to the ambience' and that masking it out would be a denial of its 'additive' character. Now, on a programming related front, have you had to mask any extraneous 'noise' in a piece of work that you've picked up from someone else (or perhaps even your own!!)?? If so how 'inspired' was your remedy and how did you creatively 'reverse' it out once the noise had subsided and/or the pitch changed. :) tongue firmly in cheek... jim

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• base-n series generator for a given number in java,,

  - by Senthil

  I want to create a program for generating the series for the given base-n. , for example if my input is 2,then series shuould be, 00,01,10,11,etc.,(binary) if my input is 10,then series shuould be,1,2,3,4,5,etc.,(decimal) is there any general mechanism to find these numbers so that I can program for base-n.,

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