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• New JDeveloper/ADF book hits the bookshelves

  - by Grant Ronald

  I've just received a nice new copy of Sten Vesterli's book Oracle ADF Enterprise Application Development - Made Simple.  I was one of the technical reviewers of the book but I'm looking forward to be able to read it end-to-end in good old fashioned book format this coming week. The book bridges the gap between those existing books that describe Oracle ADF features, and real world ADF development.  So, source control, bug tracking, estimating, testing, security, packaging etc are all covered.  Of course, every project and situation is different so the book could never supply a one-size-fits-all guide, but I think its a good addition to your ADF bookshelf.  I'll hopefully post a full review in the coming weeks. Oh, and congratulations Sten,  having gone through the pain of writing my own ADF book, I take my hat off to anyone who goes through the same journey!

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• Change the icon color in LibreOffice Calc

  - by user242234

  There appears to be no way of changing icon color in a calc chart. After creating an XY scatter plot, I can select "format data series" and can change the icon symbol and size, but not the color. There is an drop-down for line color, but when I do not have lines displayed this drop-down menu is grayed out. I have found that I can add lines to my chart, change the color of the lines, then remove the lines and I will have changed the color of the icons, but there should be a direct way to change icon color (and there used to be in previous versions). I am using Libreoffice calc version 4.2.3.3, Build ID: 420m0(Build:3). Running on Ubuntu 14.04.

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• What free icons fonts are available? [closed]

  - by Paulocoghi

  With the possibility to embed fonts in websites using @font-face CSS, some creative webdesigners developed their way to display icons using fonts, instead of images. But most of the available icon fonts (or "font-face" kits) are paid, such as: Pictos Fico Tipogram KDN Media IconMoon *free version, with less icons So, what free icons pack in font format do you know? Please limit one "font-face" kit per answer - and include why you enjoy/recommend it. Edit: This question can be converted into a community wiki, if the moderators want, because there is no best answer, and each response is welcome as a knowledge that can be enjoyed by many.

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• Disk utility running for a long time

  - by Nik

  I had a spare, old external usb hard disk which stopped working long time back due to improper removal of disk. I tried fixing it in windows (when I did not have ubuntu yet), however I couldn't fix it. So I tried formatting the disk and creating a new partition using the disk utility in ubuntu. However it seems to keep running without any indication of the progress or whatsoever. I have no idea what is happening. I have attached a screenshot below to show what I mean. As you can from the screenshot above it seems to be working on it but no indication on the progress or what it is doing. Any attempt to exit it or do any other task like safe removal or format partition leads to the the following dialog box. What should I do? Wait or restart the computer..???

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• Sesame OData Browser updated

  Since the first preview of Sesame was published, I've been working on improving it with new features.Today, I've published an update that provides the following: Support for hyperlinks (URLs and email addresses) Improved support for the OData format. More OData producers are supported, including Netflix and vanGuide, for example. Fixed display of images (images used to appear mixed up) Support for image URLs Image zoom (try to hover over pictures in Netflix' Titles or MIX10's Speakers) Support for...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Efficient skeletal animation

  - by Will

  I am looking at adopting a skeletal animation format (as prompted here) for an RTS game. The individual representation of each model on-screen will be small but there will be lots of them! In skeletal animation e.g. MD5 files, each individual vertex can be attached to an arbitrary number of joints. How can you efficiently support this whilst doing the interpolation in GLSL? Or do engines do their animation on the CPU? Or do engines set arbitrary limits on maximum joints per vertex and invoke nop multiplies for those joints that don't use the maximum number? Are there games that use skeletal animation in an RTS-like setting thus proving that on integrated graphics cards I have nothing to worry about in going the bones route?

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• Which tools you use to make gtk themes?

  - by tutuca

  I'm trying to make a new gtk theme using the murrine engine, using Humanity (default in ubuntu 9.10) as a template. You can grab the code in http://github.com/tutuca/themes However, I found cumbersome the process of creating a new theme with it. There is no central starting point. The documentation of both, the engine options (gtkrc's and stuff), and general theming practices (the format of the index.theme files, folders, bla bla) is scarce, How to's and tutorials are often old or subject to lots of opinionated debate and results confusing (to me, having a web developer background, at least :-). So... I wanted to ask to the fellows gtk themers and artist out there: Which tools you use to create a new theme, and how does your average workflow looks like?

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• Stop bots from crawling old links with extensions

  - by Jared

  I've recently switched to MVC3 which is extension-less for the URL's, but Google and Bing have a wealth of links that they are crawling which no longer exist. So I'm trying to find out if there is a way to format robots.txt (or by some other method) to tell google/bing that any link that ends in an extension isn't a valid link... Is this possible? On pages that I'm concerned about a User having saved as a fav I'm displaying a 404 page that lists the links to take once they are redirected to the new page (I decided to not just redirect them as I don't want to maintain these forever). For Google/Bing sake I do have the canonical tag in the header. User-agent: * Allow: / Disallow: /*.* EDIT: I just added the 3rd line (in text above) and it APPEARS to do what I'm wanting. Allow a path, but disallow a file. Can anyone confirm this?

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• First Partial Lunar Eclipse in 2010

  - by Suganya

  Following the Annular Solar Eclipse in January 2010, the next eclipse hitting the earth is partial Lunar Eclipse in June 2010. This partial Lunar eclipse is mostly visible to people in America and Pacific side.   The first Lunar Eclipse for the year 2010 occurs on 26th June with the magnitude of 0.5368 and the eclipse lasts for two and a half hours totally. This eclipse is clearly visible for those who are in Western Canada , USA and Eastern Australia. The local timings (24 Hours format) of the cities where the partial solar eclipse is visible are S.No Place Partial Eclipse Begins Partial Eclipse Ends 1 Atlanta 05:17 08:00 2 San Francisco 02:17 05:00 3 Texas 04:17 07:00 4 Los Angeles 02:17 05:00 5 Sydney 20:17 23:00 6 Osaka 19:17 22:00 Join us on Facebook to read all our stories right inside your Facebook news feed.

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• How to Handle Managing a Coding Project With 8 Friends?

  - by Raul

  I usually code by myself but currently I need to do a java web-based project with 8 of my friends. I would like to ask the following questions: 1) How to document the development properly? Like how to keep a daily log? Any software or format suggested? What things do you think are important to be included in the log? 2) How to code together? Is there any software/IDE that allows a team to code together? Something ike google docs? 3) How to do a proper backup for a team project? Any software or tips to share?

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• How to make whoopsie more silent (log clutter with "online"messages)

  - by Rmano

  I know what whoopsie is from the answers to What is the 'whoopsie' process and how can I remove it? I do not want to stop error reporting, as I think that error reporting is the minimum a user should do to try to help Ubuntu. But since the upgrade to 13.10, whoopsie has grown up quite chatty. I have literally hundreds of messages like that in my logs: SYS: Nov 4 14:40:48 samsung-romano whoopsie[1156]: online SYS: Nov 4 14:41:56 whoopsie[1156]: last message repeated 4 times SYS: Nov 4 14:42:56 whoopsie[1156]: last message repeated 2 times SYS: Nov 4 14:43:56 whoopsie[1156]: last message repeated 2 times SYS: Nov 4 14:44:56 whoopsie[1156]: last message repeated 2 times % zgrep whoopsie /var/log/syslog*gz | wc -l 773 Is there a way to tell whoopsie to be less verbose? (the funny output format is from SLogger, a homemade program to check system log files I wrote ages ago, but this is basically the content of /var/log/syslog file).

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• 3DS Max exporting too many vertexes for model

  - by Juan Pablo

  I have a sample model of a cube and a buddha downloaded from internet in 3ds format which I can load correctly into my program and view them without problem, but wanted to try and create my own model. I created a simple box mesh in 3ds max, and exported it as .3ds (Converted to mesh - export as .3ds) When inspecting the .3ds file with a hex viewer, I was expecting to see 8 vertexes and 12 faces declared (as the model I downloaded from internet). But what i found was that it listed 26 vertexes, and 12 faces! And when I try to load that file with my .3ds viewer, my parser isn't detecting the face block (0x4120), which is strange because it worked for other objects downloaded from internet. Do I have to set any special property in order to export a 3ds file with minimum vertexes and a vertex-index list?

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• Problem with Ogmo Editor (is Tiled Editor a solution?)

  - by Mentoliptus

  I made a level editor for a puzzle game with Ogmo Editor and gave it to our designer/level designer. When he downloaded and started Ogmo, his CPU went to 100%. I looked at my CPU usage while Ogmo is running, and it goes from 20% to 30% (which is also high for an application alike Ogmo). He has a Windows 7 VM running on his Mac and I have a normal Windows PC, can this be a problem? I found a thread on FlashFunk forum that confirms that Ogmo has CPU usage issues. Has anybody maybe solved this issue? The solution seems to use Tiled Editor, but I never used it before. Is it difficult to change a level editor from Ogmo to Tiled? Can they export in the same format (XML with CSV elements for my puzzle game)?

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• Which is better : Storing/retrieving images on/from SQL server or in a directory on server

  - by Pankaj Upadhyay

  I am working on a project in Asp.net MVC and need to work with images. There is an SQL database with a Product table. Every product in the table will have it's own image. I have two ways to do this : 1) Save the image in a web directory and store the URL on database. 2) Store the image in SQL itself in binary format and then retrieve it. Which is a better approach ? Mind you, I have no idea how second method works :-P . I will only learn this if there are merits to the second method

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• What is the best currency API out there?

  - by YouBook

  I may be asking an odd question, but webmasters seem like a decent place to post this. I'm in the search for an accurate, easy API (such as using JSON or XML) so I can use my web application. I've been trying Google's secret API, but it's dependency isn't that good because of parsing the string (weird JSON format that PHP sometimes return incorrect data or truncates the string due to parsing error, but Google's API is fair but can be improved. So, all I'm asking is your current best currency API out there, I want to have them to include documented API so I can use it with PHP. Cheers.

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• Photosynth Panoramic Deep Zoom Mosaic

  18 years ago Virtual Reality was all the rage remember The Lawnmower Man? 16 years ago Apple came out with QuickTime VR which changed the way people experienced panoramic photos on the web. QuickTime VR (virtual reality) (also known as QTVR) is a type of image file format supported by Apple's QuickTime. It allows the creation and viewing of photographically captured panoramas and the exploration of objects through images taken at multiple viewing angles. It functions as a plug-in for QuickTime. QuickTime...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• How do i make/setup a mailing list?

  - by acidzombie24

  I know i could program it myself but maybe there is a simple (thats the keyword) package. I like to add a box, snippet, form or page to my site for users to input their email address. Then i'd like it to automatically send email saying you have successfully subscribe. I'd want an unsubscribe link and i would be using smtp on google apps. I would like to send email with html so i can have a simple sentence with a complex link such as this I dont know if i'll get marked as spam if i try to send everyone an email at once? so i'd like the software to manage it. Also i'd like to get the emails in a simple format like csv. Is there a simple app that does this? if not i can write a simple form which does a simple insert (or delete when unsubscribing) and write a 200-300line app to send my emails out for me.

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• Reviewing the "Oracle Coherence 3.5" Book

  - by [email protected]

    I received the "Oracle Coherence 3.5" book in ebook format from Packt. I have been going through the ebook and I am really amazed with it. It is definitely a great guide for both experienced users and newbies. It is extremely well structured, and it's easy to read and understand. Additionally, the book contains a lot of useful information, including basic and advanced concepts, best practices, very useful tips and very good examples too.   In summary, if you want to become a Coherence expert, even if you are a Coherence newbie, this book is the way to go!   Further information about the book can be seen at Packt.  

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• Does somebody know of a testcase(s) of libRocket

  - by Bjorn

  Today I implemented the interfaces for libRocket in my engine using opengl 3.3. I got a standard rml file and some fonts and images which where needed in this rml file. It seems that the page/rml I'm rendering know is the correct one, but I'm not 100% sure. Also because I still don't know a lot of rml and it is a fairly complex one. So my question: Are there any testcases for example an rml with images and fonts with the result as it should be rendered in a png or some other image format? If there aren't would somebody who actually implemented the libRocket interface correctly be so kind and share a result of a rendering in a png with the rml tobe rendered?

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• Client Side Form Validation vs. Server Side Form Validation

  In my opinion, it is mandatory to validate data using client side and server side validation as a fail over process. The client side validation allows users to correct any error before they are sent to the web server for processing, and this allows for an immediate response back to the user regarding data that is not correct or in the proper format that is desired. In addition, this prevents unnecessary interaction between the user and the web server and will free up the server over time compared to doing only server side validation. Server validation is the last line of defense when it comes to validation because you can check to ensure the user’s data is correct before it is used in a business process or stored to a database. Honestly, I cannot foresee a scenario where I would only want to use one form of validation over another especially with the current cost of creating and maintaining data. In my opinion, the redundant validation is well worth the overhead.

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• The How-To Geek Guide to Audio Editing: Basic Noise Removal

  - by YatriTrivedi

  Laying down some vocals?  Starting your own podcast?  Here’s how to remove noise from a messy audio track in Audacity quickly and easily. This is the second part in our series covering how to edit audio and create music using your PC. Be sure to check out the first part in the series, where we covered the basics of using Audacity, and then check out how to add MP3 format support as well Latest Features How-To Geek ETC HTG Projects: How to Create Your Own Custom Papercraft Toy How to Combine Rescue Disks to Create the Ultimate Windows Repair Disk What is Camera Raw, and Why Would a Professional Prefer it to JPG? The How-To Geek Guide to Audio Editing: The Basics How To Boot 10 Different Live CDs From 1 USB Flash Drive The 20 Best How-To Geek Linux Articles of 2010 Take Better Panoramic Photos with Any Camera Make Creating App Tabs Easier in Firefox Peach and Zelda Discuss the Benefits and Perks of Being Kidnapped [Video] The Life of Gadgets in Price and Popularity [Infographic] Apture Highlights Turns Your Cursor into a Search Tool Add Classic Sci-Fi Goodness to Your Desktop with the Matrix Theme for Windows 7

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• CUPS: HP printer DNS url

  - by wintersolutions

  The URL for my printer generated by hp-makeuri looks like this: hp:/net/Officejet_6500_E710n-z?ip=192.168.178.30 But the printer is on a dhcp enabled wifi network and so its IP-address does and could change. On the other hand my wifi router seems smart enough to have some sort of DNS: $ ping hp-6500a PING hp-6500a.fritz.box (192.168.178.30) 56(84) bytes of data. 64 bytes from hp-6500a.fritz.box (192.168.178.30): icmp_req=1 ttl=255 time=11.3 ms I tried to use the hostname in the CUPS URL/DeviceUID but it failed, any suggestions if this is possible and the correct format?

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• Upgrade from 9.10 to 11

  - by Fernando Costa

  I have an installation in my machine (my version is 9.10 Karmic) and I got a warning to Upgrade to a version 10.04, to me it is okay, and I would like to upgrade to the 10.04, but here is my question. If I do, what will happen to my system of files? All my files? My programs, my apache configuration? All my servers.. Does everything reset to default? Will I lost all my data? Because if YES, will lost everything, why such a warning appears to me? Then the best solution is, format everything and install a brand new ubuntu version 11. Otherwise I still using 9.10 Karmic version,and just update normally as I'm required.. What is the best to do on this situation? Appreciate any help!

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• Can't mount cds after failed Brasero burn

  - by Allan

  Brasero failed to burn a disk recently, and now I can't access CD-ROMS. Even CD-Rs are not not showing. Using Ubuntu 11.10 on a Dell D510 Lattitude laptop. allan@allan-Latitude-D510:~$ cdrecord -checkdrive Device was not specified. Trying to find an appropriate drive... Detected CD-R drive: /dev/cdrw Using /dev/cdrom of unknown capabilities Device type : Removable CD-ROM Version : 5 Response Format: 2 Capabilities : Vendor_info : 'TSSTcorp' Identification : 'DVD+-RW TS-L532B' Revision : 'DE04' Device seems to be: Generic mmc2 DVD-R/DVD-RW. Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr). Driver flags : MMC-3 SWABAUDIO BURNFREE Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R96R My CD drive is now useless, and any help on getting it to read/burn would be appreciated.

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• USB-creator: Error erasing device: Unknown or unsupported erase type

  - by Mike Williamson

  I created a live usb using usb-creator-gtk. I installed Ubuntu with it and all was good with the world. Now I am trying to use the same memory stick and create a live USB for 14.04 and I get the following error when trying to erase the disk. org.freedesktop.DBus.Python.gi._glib.GError: Traceback (most recent call last): File "/usr/lib/python3/dist-packages/dbus/service.py", line 707, in _message_cb retval = candidate_method(self, *args, **keywords) File "/usr/share/usb-creator/usb-creator-helper", line 239, in Format block.call_format_sync('dos', GLib.Variant('a{sv}', {'erase': GLib.Variant('s', '')}), None) gi._glib.GError: GDBus.Error:org.freedesktop.UDisks2.Error.Failed: Error erasing device: Unknown or unsupported erase type `' How can I fix this so I can create a new live USB?

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