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• Raw Audio Conversion

  - by Walidix

  While, I'm reading gstreamer document I found this: " Audioconvert converts raw audio buffers between various possible formats. It supports integer to float conversion, width/depth conversion, signedness and endianness conversion and channel transformations." I only understand "depth" (bit number per sample) "signedness and endianness" (for data representation) And now, I'm looking for explanations of : "integer to float conversion" "width" "channel transformations" Thanks in advance

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• Procedural modeling of Robots?

  - by anon

  Procedural techniques is common for texture synthesis, modeling plants, and modeling terrains. However, I've seen very little work on algorithmic construction of robots, which is a bit surprising given how mechanical these systems are. Anyone have a good resource on the algorithmic construction of robots / robotic humanoids? Thanks!

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• Why does an empty database take megabytes of space?

  - by Joonas Pulakka

  When experimenting with (embedded) Apache Derby DB, I noticed that a fresh database, with no tables in it, takes about 1.7 MB of disk space. It's quite a bit more than my common wisdom would expect. Why is that? Are there significant differences in this between various database engines?

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• How do I implement a TextBox that displays "Type here"?

  - by mafutrct

  Displaying "Type here to ..." until the user enters text into a TextBox is a well-known usability feature nowadays. How would one implement this feature in C#? My idea is to override OnTextChanged, but the logic to handle the changes of Text from and to "Type here" is a bit tricky... Displaying "Type here" on initialization and removing it on first input is easy, but I want to display the message every time the entered text becomes empty.

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• advantage and disadvantage of smarty template

  - by Bharanikumar

  Hi , New to smarty , Why people's showing interest in framework , What are the advantages in that , also lot of people little bit avoiding template what is the reason , What is the real reason people choosing the smarty , How much really smarty best for web development , Regards Bharanikumar

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• Another total newbie question: what exactly is a "run-time"?

  - by Russel

  Hello, here's my question: My company is always having problems with software not working because "run-times" or missing. I hear people say this a lot (you need the 32-bit run times, Microsoft run-times, etc etc). What exactly is being referred to? DLL files? Something different? Can anyone please clarify? Thanks! RKL

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• Are there any good books to learn C++ if you already know Java and C#

  - by JF LR

  Hi, I would like to know if you have any good books that teach C++ programming without repeating basic stuff. In fact, I already well know Java and C#. I also have a basic knowledge in C and assembly, so I understand a little bit pointer arithmetic, manual memory management and heap based allocation. I was looking at O'Reilly's C++ in a Nutshell and was also wondering if this book would be a good choice. Thank you

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• excel turning my numbers to floats

  - by femi

  Hello, i have a bit of asp.net code that exports data in a datagrid into excel but i noticed that it messes up a particular field when exporting. eg .. i have the value of something like 89234010000725515875 in a column in the datagrid but when exported, it turns it into 89234+19. Is there any excel formatting that will bring back my original number? thanks

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• Has Anyone Used the rhomobile Framework?

  - by Leachy Peachy

  I have a client asking about the rhomobile framework. I have been researching it a bit and wanted to see what the community at large thought about the framework and what, (if any), problems you came across in developing with it. Thank you, L.

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• How to express "where value is in dynamic list" in HQL/GORM?

  - by xcut

  For a grails application, I need to find a list of objects whose "attr" is one in a dynamic list of strings. The actual HQL query is more complex, but the bit I need help with is this: def result = MyObject.executeQuery("select o from MyObject as o where o.attr in :list", [list: aListOfStrings]) This is obviously not the right syntax, Grails throws it back at me as an "unexpected token", being the :list parameter. Is this possible in HQL? I don't particularly want to use Criteria in this part of the codebase.

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• iPhone app in Norwegian?

  - by Chamira Fernando

  I have an iPhone app which is supposed to be in Norwegian. All my nib files and content are in Norwegian. Then I came to know about language files [Localisation] but I can't see Norwegian in the list of languages in app store, now I'm bit worried about this issue can some one help me?

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• Temporary Onmouseover

  - by 2x2p1p

  Hi guys :) Css "over" selector applys a temporary style to an element, it isn't definitive: div:hover { background-color: red; } I can use the same thing with javascript but it is a bit complicate and impossible for several elements: var elem = document.getElementByTagName ("div")[0]; elem.onmouseover = function () { this.style.backgroundColor = "red"; } elem.onmouseout = function () { this.style.backgroundColor = "transparent"; } There is a better way ? Something like this: document.getElementByTagName ("div")[0].ontemporarymouseover = function () { // LoL this.style.backgroundColor = "red"; } Thanks

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• What quality, parser-generator options exist for ruby?

  - by cartoonfox

  What open source (preferably gem-based) parser-generator options do I have in Ruby? I've used (flex&bison)|(lex&yacc) from C in the past, and I'm comfortable with BNF-style specifications. I've heard of treetop, but it looks a bit alien and verbose compared to yacc... Purpose: I want to convert my text markup language to a BNF and generate the parsing code. I think it's a better strategy than my first-order solution: http://github.com/dafydd/semantictext/blob/master/lib/semantictext/rich_text_parser.rb

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• Authentication and authorization for RESTfull API (java jersery)

  - by abovesun

  Hi, implementing service something similar with tinyurl or bit.ly, I'm would like to expose service as API, I'm using java and jersey as RESTfull service implementation. I'm looking for simplest way for authentification of users who use API, OAuth is first thing coming in mind, but the problem is I don't need this 3 iteration calls with request token query, than access token query with callback url passing. I just need to give user ability to invoke api with no additional security calls to my server.

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• What is the difference between PS1 and PROMPT_COMMAND

  - by Jed Daniels

  While taking a look at this awesome thread I noticed that some examples use PS1="Blah Blah Blah" and some use PROMPT_COMMAND="Blah Blah Blah" (and some use both) when setting the prompt in a bash shell. What is the difference between the two? An SO search and even a bit of broader google searching aren't getting me results, so even a link to the right place to look for the answer would be appreciated. Thanks!

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• Tools for creating UI prototype.

  - by Golovko

  Hello. I need to create a prototype of ui. I'm googling, and find "Axure RP", but it very expensive for us company. Other way for creating UI prototype is tools like Qt Designer, but it doesn't provide some cool functions and sometimes demand bit programming skills. Do you know freeware tool for my task for man without any programming skills? Thanks. Ps. excuse my english ;)

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• Who are good suppliers of .NET 4 Hosted Virtual Private Servers ? (May 2010)

  - by Nick Haslam

  I'm looking for a supplier for hosting a Virtual server, running Windows Server 2008 (R2 ideally) and .NET 4 to run an internet facing ASP.NET web application. I'd also like to be able to remote desktop onto it, and install other apps as necessary, including other websites as and when. I'm based in the UK, so a UK based supplier would be great. I was looking at Fasthosts, but having researched them a bit more, they look like a bad idea.

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• Can I find out the return value before returning while debugging in Visual Studio

  - by doekman

  Take the following function: DataTable go() { return someTableAdapter.getSomeData(); } When I set a breakpoint in this function, is there a possibility to inspect the returned value? The "go" function is directly coupled to a datagrid in an aspx page. The only way to inspect the returned datatable, is to use a temporary variable... However, that's a bit inconvenient. Isn't there another way?

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• How can I write a regular expression that will not match if a string contains a particular substring

  - by Iain Fraser

  Example: Suppose in the following example I want to match strings that do not contain the word "NOOOT". Example A: This shirt is NOOOT black. Example B: This shirt is black. I want something a little bit like the like the non-matching character class (e.g. [^abc]), but for whole strings: .*?(^NOOOT).*? Does such a creature exist?

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• Which O/RM tool supports Microsofts Access?

  - by Steven

  For one of my clients I'm currently building an application that communicates with a legacy Microsoft Access database. Migrating to SQL server is unfortunately not (yet) an option. I currently write the queries using OleDbConnection, OleDbCommand and –good old- text based queries. As you can imagine I'm a bit spoiled by using modern O/RM tools and I feel like I went back in time. Which O/RM tool supports Microsoft Access so I can get rid of this uglyness?

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• How to reduce UIImage size to a maximum as possible

  - by Tharindu Madushanka

  I am using following code to resize the image. Resize a UIImage Right Way And I use interpolation quality as kCGInterpolationLow. And then I use UIImageJPEGRepresentation(image,0.0) to get the NSData of that image. Still its a little bit high in size around 100kb. when I send it over the network. Can I reduce it further. If I am to reduce it more what could I do ? Thanks and Kind Regards,

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• What is the difference between a private and public funtion?

  - by Kyle

  I am a new programmer, and I started in C and am now starting to enjoy JavaScript and a tiny bit of PHP more. Lately I've heard the terms 'private' and 'public' functions a lot. Could anybody give an explanation of the both and how they are of use to a programmer? And I'm probably totally wrong here... but is a (function(){}) in javascript a private function?

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• What sort of acceleration does openCV use ? How can it process so fast ?

  - by Jelly Amma

  I've been using openCV quite a bit lately and I'm amazed at how fast it can process arrays. Is it using a special type of optimization or relying on special features of the CPU ? I'm on an Intel CPU btw.

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• Picture gallery with selected picture zoomed and bright

  - by Epoch

  I am trying to create a picture gallery in android, where picture in selection (in gallery) will be bigger in size, glow a little bit. Where as pictures not selected will be dull, and smaller in size. I tried gallery.setUnselectedAlpha() function to make images unselected dull, but it is not working. How to achieve the effect, please help.

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• where from does paperclip get the name of original file?

  - by Pavel K.

  i started using nginx upload module (which creates upload files like /tmp/000121545) but i need paperclip to use original filename while saving files (like /public/avatars/LuckyLuke.jpg) previously in the parameters Rails were passing just "avatar"=>#<File:/tmp/RackMultipart20100413-6151-t3ecq0-0> no original filename as well, so i am wondering where from does it come in paperclip? i tried looking through plugin code but it's currently a bit too complex for me.

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