Search Results

Search found 5258 results on 211 pages for 'libraries'.

Page 138/211 | < Previous Page | 134 135 136 137 138 139 140 141 142 143 144 145  | Next Page >

• Image coding library

  - by Dmitry

  Is there any good library for lossless image encoding/decoding that has compression rate more or less similar to PNG but decoding to raw RGB bitmap data would be much faster than PNG? Also alpha transparency is needed, but not essential because, alpha channel could be taken from separate image. Original problem lies in slowness of reading and decoding PNG files on iPhone using standard libraries. Obvious and the simples solution would have been storing raw RGB bitmap data, but then size of unpacked ipa is too large - 4 times larger than PNG files. So, I am trying to find some compromise solution.

  Read the article

• How to figure out optimal C / Gamma parameters in libsvm?

  - by Cuga

  I'm using libsvm for multi-class classification of datasets with a large number of features/attributes (around 5,800 per each item). I'd like to choose better parameters for C and Gamma than the defaults I am currently using. I've already tried running easy.py, but for the datasets I'm using, the estimated time is near forever (ran easy.py at 20, 50, 100, and 200 data samples and got a super-linear regression which projected my necessary runtime to take years). Is there a way to more quickly arrive at better C and Gamma values than the defaults? I'm using the Java libraries, if that makes any difference.

  Read the article

• using BOSH/similar technique for existing application/system

  - by SnapConfig.com

  We've an existing system which connects to the the back end via http (apache/ssl) and polls the server for new messages, needless to say we have scalability issues. I'm researching on removing this polling and have come across BOSH/XMPP but I'm not sure how we should take the BOSH technique (using long lived http connection). I've seen there are few libraries available but the entire thing seems bloaty since we do not need buddy lists etc and simply want to notify the clients of available messages. The client is written in C/C++ and works across most OS so that is an important factor. The server is in Java. does bosh result in huge number of httpd processes? since it has to keep all the clients connected, what would be the limit on that. we are also planning to move to 64 bit JVM/apache what would be the max limit of clients in that case. any hints?

  Read the article

• Dynamically creating a member ID card as pdf using PHP?

  - by aefxx

  I need to code a PHP script that would let me generate a pdf file which displays a member ID card (something like a credit card used to identify oneself) at a certain resolution. Let me explain: I do have the basic blueprint of the card in png file format. The script needs to drop in a member's name and birthday along with a serial. So far, no problem - there are plenty of good working PHP libraries out there. My problem is to ensure that the resulting pdf (the generated image of the card, to be precise) meets a certain resolution (preferably 300dpi), so that printing it would look right. Any ideas? EDIT I solved it using the TCPDF library which lets you scale images at a certain resolution. Get it here: http://www.tecnick.com/public/code/cp_dpage.php?aiocp_dp=tcpdf

  Read the article

• Facing Problem with Libxml.rb

  - by Rakesh

  Hi Folks, I downloaded one of the rails app from server and tried running it.I faced an error on migration D:\Radiant\trunkrake db:migrate (in D:/Radiant/trunk) rake aborted! 126: The specified module could not be found. - D:/Radiant/trunk/config/../ven dor/plugins/libxml-ruby/lib/libxml_ruby.so I got the windows version of libxml_ruby.so and tried again. i got the error saying " libxml2.dll " not found.Then i checked the file libxml.rb ..it says the below lines . If running on Windows, then add the current directory to the PATH for the current process so it can find the pre-built libxml2 and iconv2 shared libraries (dlls). Can anybody explain me what actually this mean? Regards Rakesh S

  Read the article

• Networking multiple computers to one brain in Java

  - by Morpheous

  Hello, I was wondering which libraries or API's would be useful in this. what im aiming for is to be able to type a command into a prompt and then specify which computer(out of all of them that are networked together) to execute that command on. the second part is i want to be able to see that command execute and the result on the computer that was specified. for example if i enter "firefox www.google.com, desktop2" i want to be able to see the window open on the monitor of that computer. Do you understand what im trying to do? any help is appreciated. Thanks, Morpheous

  Read the article

• Integrating Jython Cpython

  - by eric.frederich

  I am about to begin a project where I will likely use PyQt or Pyside. I will need to interface with a buggy 3rd party piece of server software that provides C++ and Java APIs. The Java APIs are a lot easier to use because you get Exceptions where with the C++ libraries you get segfaults. Also, the Python bindings to the Java APIs are automatic with Jython whereas the Python bindings for the C++ APIs don't exist. So, how would a CPython PyQt client application be able to communicate with these Java APIs? How would you go about it? Would you have another separate Java process on the client that serializes / pickles objects and communicates with the PyQt process over a socket? I don't want to re-invent the wheel... is there some sort of standard interface for these types of things? Some technology I should look into? RPC, Corba, etc? Thanks, ~Eric

  Read the article

• XSLT transformations in Ruby and JRuby

  - by jpatokal

  Simple question: are there any solid XSLT libraries that work in both Ruby and JRuby? REXML works in both, but does not have XSLT support. ruby-xslt doesn't work in JRuby. The latest Nokogiri betas do support JRuby, but the support is still buggy and throws occasional NullPointerExceptions for XML input that works fine in Ruby. (In particular, any transforms that don't result in valid XML cause it to barf, even if xsl:output is set to 'text'!) JXslt is just a wrapper for Java's Xalan/Saxon and doesn't work in Ruby. Please tell me I'm missing something?

  Read the article

• Direct3D 11 effect files deprecated?

  - by Toji

  I've been playing around with Direct3D 11 a little bit lately and have been frustrated by the lack of documentation on the basics of the API (such as simple geometry rendering). One of the points of confusion brought on by the sparse documentation is the (apparent) move away from the use of effects for shaders. In D3D11 all of the effect (.fx) support has been removed from the D3DX libraries and buried away in a hard to find (sparsely documented, of course) shared source library. None of the included examples use it, preferring instead to compile HLSL files directly. All of this says to me that Microsoft is trying to get people to stop using the effect file format. Is that true? Is there any documentation of any kind that states that? I'm fine doing it either way, but for years now they've been promoting the .fx format so it seems odd that they would suddenly decide to drop it.

  Read the article

• How to use third party themes in swing application?

  - by swift

  I want to use some third party themes (like synthetica http://www.javasoft.de/synthetica/themes/) in my swing appliaction. i am using eclipse ide, got the jar file of theme and did the following modification(according to the readme file from the theme) in my code try { UIManager.setLookAndFeel(new SyntheticaBlackMoonLookAndFeel()); } catch (Exception e) { e.printStackTrace(); } but after this modification its showing the following error The type de.javasoft.plaf.synthetica.SyntheticaLookAndFeel cannot be resolved. It is indirectly referenced from required .class files what does this mean? i tried searching on net but cant really find any useful answers Contents of Readme file: System Requirements =================== Java SE 5 (JRE 1.5.0) or above Synthetica V2.2.0 or above Integration =========== 1. Ensure that your classpath contains all Synthetica libraries (including Synthetica's core library 'synthetica.jar'). 2. Enable the Synthetica Look and Feel at startup time in your application: import de.javasoft.plaf.synthetica.SyntheticaBlackMoonLookAndFeel; try { UIManager.setLookAndFeel(new SyntheticaBlackMoonLookAndFeel()); } catch (Exception e) { e.printStackTrace(); }

  Read the article

• When is JavaScript's eval() not evil?

  - by Richard Turner

  I'm writing some JavaScript to parse user-entered functions (for spreadsheet-like functionality). Having parsed the formula I could convert it into JavaScript and run eval() on it to yield the result. However, I've always shied away from using eval() if I can avoid it because it's evil (and, rightly or wrongly, I've always thought it is even more evil in JavaScript because the code to be evaluated might be changed by the user). Obviously one has to use eval() to parse JSON (I presume that JS libraries use eval() for this somewhere, even if they run the JSON through a regex check first), but when else, other than when manipulating JSON, it is OK to use eval()?

  Read the article

• Client/JS Framework for "Unsaved Data" Protection?

  - by Kevin Dostalek

  Hey all- we have a typical web application that is essentially a data entry application with lots of screens some of which have some degree of complexity. We need to provide that standard capability on making sure if the user forgets to click the "Save" button before navigating away or closing their browser they get a warning and can cancel (but only when there is unsaved or dirty data). I know the basics of what I've got to do-- in fact I'm sure I've done it all before over the years (tie in to onbeforeunload, track the "dirty" state of the page, etc...) but before I embark on coding this YET AGAIN, does anyone have some suggestions for libraries already out there (free or otherwise) that will help out? Thanks!

  Read the article

• Create popup "toaster" notifications in Windows with .NET

  - by Draak

  I am using .NET and am creating a desktop app/service that will display notifications in the corner of my Desktop when certain events are triggered. I don't want to use a regular Message Box b/c that would be too intrusive. I want notifications to slide into view and then fade out after a few seconds. I am thinking of something that will act very much like the Outlook alerts that one gets when a new message arrives. The question is: Should I use WPF for this? I've never done anything with WPF but will happily try it if that's best means to the end. Is there a way to accomplish this with regular .NET libraries?

  Read the article

• IBM RAD With Java 1.5 wont compile code with generics

  - by Matt1776

  Hello I have some code that has generic references in it and my IBM RAD IDE will not compile the code, instead treating it as an error. I have checked the version of the JRE its pointing to across all the Enterprise Project's and it is 1.5 which I am told does support generics. Also I checked that all the libraries for WAS were pointing to the correct version and that the Compiler Compliance Level was set correctly (which it was at 5.0 and i changed it to 6.0 with no luck either) Does anyone have any suggestions as to anything else I can try? I have issues like this with RAD all the time and I dont know about anyone else but they took eclipse and made it complicated and dysfunctional.

  Read the article

• Entity-attribute-value model using codeigniter / php

  - by John Stewart

  SO I am trying to create a way to structure my database to be able customize forms. I looked into EAV pattern and here is my db structure: Table form - form_id - form_name - form_added_on - form_modified_at Table: form_fields - field_id - form_id - field_type (TEXT, RADIO etc..) - field_default_value - field_required Table: form_data - data_id - field_id - form_id - field_value so now I can store any custom form into the database and if I want to get the values for an individual form I can simply join it by "form_id" .. the problem: I want to be able to search through all the forms for a specific field value. How can I do that with EAV model? Also, I thought about just storing the custom data as a serialized (JSON) object but then I am not sure how can I query that data. Please note that I am using Codeigniter with MYSQL. So if conversation can use Codeigniter libraries if needed.

  Read the article

• Multithreading in Lua

  - by RCIX

  I was having a discussion with my friend the other day. I was saying how that, in pure Lua, you couldn't build a preemptive multitasking system. He claims you can, because of the following reason: Both C and Lua have no inbuilt threading libraries [OP's note: well, Lua technically does, but AFAIK it's not useful for our purposes]. Windows, which is written in mostly C(++) has pre-emptive multitasking, which they built from scratch. Therefore, you should be able to do the same in Lua. The big problem i see with that is that the main way preemptive multitasking works (to my knowledge) is that it generates regular interrupts which the manager uses to get control and determine what code it should be working on next. I also don't think Lua has any facility that can do that. My question is: is it possible to write a pure-Lua library that allows people to have pre-emptive multitasking?

  Read the article

• python appengine form-posted utf8 file issue

  - by khany

  hi, i am trying to form-post a sql file that consists on many INSERTS, eg. INSERT INTO `TABLE` VALUES ('abcdé', 2759); then i use re.search to parse it and extract the fields to put into my own datastore. The problem is that, although the file contains accented characters (see the e is a é), once uploaded it loses it and either errors or stores a bytestring representation of it. Heres what i am currently using (and I have tried loads of alternatives): form = cgi.FieldStorage() uFile = form['sql'] uSql = uFile.file.read() lineX = uSql.split("\n") # to get each line and so on. has anyone got a robust way of making this work? remember i am on appengine so access to some libraries is restricted/forbidden

  Read the article

• Spring online repository for Maven

  - by Fortyrunner

  I've just installed Maven2 for the first time. By default it pulls down a few useful jars into a local project: jakarta-commons, junit etc. I wanted to pull in the latest Spring release (2.5.6 at the time of writing). But the online repositories I looked at (iBiblio and Maven) only had much older versions of Spring libraries. Are there any other repositories that are kept up to date? What is the best practice here; can we maintain them ourselves? I would be prepared to help out maintaining this stuff!

  Read the article

• An equivalent of -javaagent in C#? Or: ways to use a java framework in C#.

  - by Alix

  Hi everyone. This is probably something I should be able to figure out by myself, but I'm not having much luck so I figured I'd ask. The issue: I'm translating a system from java to C# and they use a java framework that I'd really like to use, since it takes care of the most complex parts of the system, which I would otherwise have to implement myself. I have the source code of this framework. I know there are several possibilities for using java libraries in C# (although I'm not familiar with any of them, so I'd appreciate suggestions). So far I've thought of using IKVM.NET to generate a .dll, but I'm not sure what to do next, because in java in order to run the framework with your code you're supposed to use the option -javaagent by adding -javaagent:bin/deuceAgent.jar (where deuceAgent is the framework) to your java command line. I don't know what the equivalent in C# would be once I have my .dll, or whether there's an equivalent at all. Any help? Thanks so much.

  Read the article

• Multiple complete HTTP requests stuck in TCP CLOSE_WAIT state

  - by Sean Owen

  I have a Java and Tomcat-based server application which initiates many outbound HTTP requests to other web sites. We use Jakarta's HTTP Core/Client libraries, very latest versions. The server locks up at some point since all its worker threads are stuck trying to close completed HTTP connections. Using 'lsof' reveals a bunch of sockets stuck in TCP CLOSE_WAIT state. This doesn't happen for all, or even most connections. In fact, I saw it before and resolved it by making sure to set the Connection: Close response header. So that makes me think it may be bad behavior of remote servers. It may have come up again since I moved the app to a totally new service provider -- different OS, network situation. But, I am still at a loss as to what I could do, if anything, to work around this. Some poking around on the internet didn't turn up anything I'm not already doing. Just thought I'd ask if anyone has seen and solved this?

  Read the article

• What XSLT processor should I use for Java transformation?

  - by Artic

  What XSLT processor should I use for Java transformation? There are SAXON, Xalan and TrAX. What is the criteria for my choice? I need simple transformation without complicated logical transformations. Need fast and easy to implement solution. APP runs under Tomcat, Java 1.5. I have some jaxp libraries and could not understand what is the version of jaxp used. Thanks in advance. Best regards.

  Read the article

• Routing and URI parsing in Codeigniter

  - by bobo

  I have a route defined in CI, $route['user/activate-account/:any'] = "user/activate_account"; People access the route in this url pattern, http://mydomain.com/user/activate-account/user_id/12345/token/abcdefghijk Inside the activate_account function, I tried to use the following codes to retrieve the required data, $user_id=$this->input->get('user_id'); $token=$this->input->get('token'); But they return FALSE, does this mean that for this kind of url pattern, I am supposed to use the functions provided by the URI class (http://codeigniter.com/user_guide/libraries/uri.html) to retrieve the variables?

  Read the article

• Good Perlin noise resources/implementation?

  - by Chumpy

  Are there any good resources out there detailing Perlin noise generation? I understand that most languages have noise generating libraries available, but I'm interested in creating my own for fun/experience. I've already looked at this, which seems pretty popular, but it only gives an in-depth explanation of one dimensional noise. Google searches have been relatively unhelpful so far, as most of them focus on applications instead of how to create a generator. Books and/or websites are welcome, even if their focus is not the generation itself so long as it gives a thorough explanation of an implementation, or at least the concepts involved so I can "discover" my own.

  Read the article

• Programmatic resource monitoring per process in Linux

  - by tuxx

  Hi, I want to know if there is an efficient solution to monitor a process resource consumption (cpu, memory, network bandwidth) in Linux. I want to write a daemon in C++ that does this monitoring for some given PIDs. From what I know, the classic solution is to periodically read the information from /proc, but this doesn't seem the most efficient way (it involves many system calls). For example to monitor the memory usage every second for 50 processes, I have to open, read and close 50 files (that means 150 system calls) every second from /proc. Not to mention the parsing involved when reading these files. Another problem is the network bandwidth consumption: this cannot be easily computed for each process I want to monitor. The solution adopted by NetHogs involves a pretty high overhead in my opinion: it captures and analyzes every packet using libpcap, then for each packet the local port is determined and searched in /proc to find the corresponding process. Do you know if there are more efficient alternatives to these methods presented or any libraries that deal with this problems?

  Read the article

• How to recognise vehicle licence / number plate (ANPR) from an image?

  - by Ryan ONeill

  Hi all, I have a web site that allows users to upload images of cars and I would like to put a privacy filter in place to detect registration plates on the vehicle and blur them. The blurring is not a problem but is there a library or component (open source preferred) that will help with finding a licence within a photo? Caveats; I know nothing is perfect and image recognition of this type will provide false positive and negatives. I appreciate that we could ask the user to select the area to blur and we will do this as well, but the question is specifically about finding that data programmatically; so answers such as 'get a person to check every image' is not helpful. This software method is called 'Automatic Number Plate Recognition' in the UK but I cannot see any implementations of it as libraries. Any language is great although .Net is preferred. Thanks in advance Ryan

  Read the article

< Previous Page | 134 135 136 137 138 139 140 141 142 143 144 145  | Next Page >