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• How to import a pdf in libreoffice? under ubuntu, all pages are blank

  - by Daniele

  I have some .pdf generated by a scanner, that I want to import in LibreOffice and do some small editing. The PDF has only one object per page, a page-size image. If I open it in LibreOffice under Ubuntu 12.10, it imports "successfully" but all pages are blank. I have the libreoffice-pdfimport package installed. That is true with both LibreOffice 3.6 (part of Ubuntu 12.10) and with 4.0.2, from libreoffice ppa. The same .pdf files open perfectly fine on both LibreOffice for Windows and LibreOffice for Mac (yes, I have three computers with all three OSes), but on Ubuntu 12.10, all pages are blank, so I can only conclude this is an issue with Ubuntu packaging, or something really weird prevents it from working under linux. How can I import these kinds of .pdf into LibreOffice for editing?

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• Unity iOS optimization and draw calls

  - by vzm

  I am curious of what methods I should approach in optimizing my Unity project for iOS hardware. I have very little image effects running (directional light with low res shadows) and I used the combine children script from the standard assets to lessen the load on the CPU. My project currently runs with 45-57 draw calls at non-intensive segments and up to 178 at intensive segments. I heard that static batching relieves some of the stress, but the game has the environment moving around the player instead of the player moving around the environment. Is there any alternative that I may look towards to improving the draw call number?

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• Best way to store motion changes to reduce memory

  - by Andrew Simpson

  I am comparing jpeg to jpeg in a constant 'video-stream'. i am using EMGU/OpenCV to compare each pixels at the byte level. There are 3 channels to each image (RGB). I had heard that it is common practice to store only the pixels that have changed between frames as a way of conserving memory space. But, if for instance/example I say EVERY pixel has changed (pls note i am using an exaggerated example to make my point and i would normally discard such large changes) then the resultant bytes saved is 3 times larger than the original jpeg. How can I store such motion changes efficiently? thanks

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• Ubuntu 12.04 - compiz - make sphere to like like a planet

  - by gotqn

  I have read topics of people that what to style their compiz sphere like a planet and set a background image like space. It definitely very good idea, but I have not been able to find a tutorial of how this is done (only some clips in youtube of people who have done this and a plugin, but it is not known to work work 12.04 version of Ubuntu). I have set my settings of compiz manager, so I have a sphere now, but I need some help with the images that I need to set. Has anyone idea how these pictures should be created and who the compiz will concatenate them?

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• How do I port my Ubuntu from my Desktop to Laptop

  - by Bragboy

  Hi, I am currently using Ubuntu 10.04 installed on my desktop box. I have got a new laptop and I will be using it from now on. But I will have to do the setup all over again (setting up applications/updates). Plus many of my preferences and tweaks I've had in my desktop will be lost and those too I will have to all over again. Is there an easy way where I can just take image or something and use it in my laptop?? Any help/pointers/links are much appreciated.

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• Remove Kernel 3.1

  - by chazdg

  Is there a way to remove kernel 3.1 from Oneiric? I downloaded and upgraded to 3.1 with these instructions: Open the terminal and run these two commands for both 32-bit and 64-bit versions of Ubuntu 11.10/11.04: wget http://kernel.ubuntu.com/~kernel-ppa...241006_all.deb sudo dpkg -i linux-headers-3.1.0-030100_3.1.0-030100.201110241006_all.deb Ubuntu (64-bit) For Ubuntu 11.10/11.04 (64-bit), issue these commands: wget http://kernel.ubuntu.com/~kernel-ppa...1006_amd64.deb sudo dpkg -i linux-headers-3.1.0-030100-generic_3.1.0-030100.201110241006_amd64.deb wget http://kernel.ubuntu.com/~kernel-ppa...1006_amd64.deb sudo dpkg -i linux-image-3.1.0-030100-generic_3.1.0-030100.201110241006_amd64.deb Everything went well. I was able to reboot quickly, but Firefox and Chrome constantly crash with Kernel 3.1. I am using Gnome 3.2 and saw improvement with 3.0.0.13 provided by ppa. Any help with 3.1 or just removing it would be helpful. Thanks to all that reply.

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• How to add a sound that an enemy AI can hear?

  - by Chris

  Given: a 2D top down game Tiles are stored just in a 2D array Every tile has a property - dampen (so bricks might be -50db, air might be -1) From this I want to add it so a sound is generated at point x1, y1 and it "ripples out". The image below kind of outlines it better. Obviously the end goal is that the AI enemy can "hear" the sound - but if a wall is blocking it, the sound doesn't travel as far. Red is the wall, which has a dampen of 50db. I think in the 3rd game tick I am confusing my maths. What would be the best way of implementing this?

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• Find Randomart of existing ssh key

  - by Iori

  I have created a ssh-keygen and i got this result The key fingerprint is: 84:4b:3d:7a:d5:5e:58:15:a0:b6:ab:0f:03:3b:3b:82 ir@ir-Notebook The key's randomart image is: +--[ RSA 4048]----+ | .ooo| | o ..o | | o + .oo . | | . + o.... | | o.S .. | | .o . | | . o o . | | E . .o + | | ...... | +-----------------+ this is generated when key is created. is there any way to view Randomeart of a existing key And what is the purpose of this Randomart in cryptography. Thanks

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• Error installing Japanese game on lubuntu

  - by Daniel Choi

  So, I have a .iso file for a japanese game. so I used Furious ISO mounter to mount the image, and used wine loader to install the game, but when I try, there's this small windows with two options, most likely YEs and No, with weird symbols and squares in the area there shoudl be text. I installed Japanese Language, but doesn't work. I got the Fake Japanese for Winetrick, but I'm not sure how to use this. Does anyoneno know how to fix this problem?? THank you.

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• SanDisk présente une CompactFlash de 128 GB à 1500 $ l'unité, de telles capacités ont-elles un sens ?

  SanDisk présente une CompactFlash de 128 GB à 1500 $ l'unité, de telles capacités ont-elles un sens ? SanDisk vient de lancer une nouvelle carte mémoire CompactFlash dont les spécifications sont impressionnantes : 128 GB de capacité de stockage pour une vitesse d'écriture de 100MB par seconde. Appuyer sur le déclencheur pour prendre un cliché en deviendrait presque plus long que le transfert de l'image numérique sur les circuits ! De plus, ses dimensions aident à dissiper la chaleur qui découle de ce haut taux d'échange de données ; et offrent aussi plus de place pour l'insertion d'une protection, qui la protège des températures extrêmes. Mais cette Extreme Pro CompactFlash a un prix, et pas un petit... Elle coûte 15...

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• OpenGL ES 1 Pixel Error?

  - by Beginner001

  I am developing a game on android using OpenGL ES 1.0 for Android OS. It is a 2d game using a simple Orthographic projection and textures for the sprites. One of these textures has a small line (it looks like 1 pixel) all the way across the top that has the same colors as the bottom 1-pixel line of the texture. It is almost as if the bottom line of the image raster was copied and pasted as the top line as well. Is anyone familiar with this type of error? What could the problem be?

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• Why does Google Analytics show false referrals?

  - by Peter Merrill

  Ever since Google revamped their Analytics interface I've been noticing a weird "bug" while viewing the "Real-Time" overview area. From this area I can obviously see live stats of visitors to my website but when I visit my website by opening a new tab (Chrome) and manually visit website the real time stats sometimes look like the image linked below. http://i.stack.imgur.com/mfniY.png Is there any reason why Google is saying that I was referred by Stack Overflow when I'm visiting my website from a new tab? Could this be something do to with how I installed the analytics on my site or could this be an issue with browser cookies? Have anyone else noticed this? I am mainly concerned about this because in the standard reporting area of my Analytics panel my referral stats are getting thrown off every time I visit my own website.

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• How can I reconfigure the nvidia proprietary drivers from the command line (ssh)?

  - by Mathieu Pagé

  I have a linux HTPC (running XBMC) in my living room. This morning I ssh'ed into the machine and did upgrade it to 10.10. When it finaly resarted it says something about running in low quality graphics and eventually returned to a command line login prompt. I ssh'ed in again and did a sudo reboot now. When it came back on this time the image is rapidly scrolling from the top to the bottom of the screen. I guess the installed driver doesn't quite work with the S-Video port on which the TV is connected. previously it was working right with the nvidia proprietary drivers. How can I install thoses without using the GUI tool that comes with Ubuntu?

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• J2ME character animation with multiple sprite sheets

  - by Alex

  I'm working on a J2ME game and I want to have walking animations. Each direction of walking has a separate sprite sheet (i.e. one for walking up, one for walking right etc), I also have a static idle image for each direction held together in a single file. I've tried to hold an array of sprites in my player class and then just drawing the sprite corresponding to the current direction, but this doesn't seem to work. I'm aware that if I combine all the animations into one sprite sheet I could set up different animation sequences, but I want to be able to do it with separate images for each animation. Is there a way that anyone knows of to achieve this? And ideally without too much extra code (as opposed to combining the sprites into one sheet)

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• How to make room reflection using Cubemap

  - by MaT

  I am trying to use a cube map of the inside of a room to create some reflections on walls, ceiling and floor. But when I use the cube map, the reflected image is not correct. The point of view seems to be false. To be correct I use a different cube map for each walls, floor or ceiling. The cube map is calculated from the center of the plane looking at the room. Are there specialized techniques to achieve such effect ? Thanks a lot !

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• WCF web service with Neural Network

  - by Gary Frank

  I am developing a web service that performs object recognition. It will be available for testing as soon as enough code has been developed, and then officially when it is finished. It is based on a radically new type of artificial neural network that I designed. Its goal is to recognize any type of object within an image. Besides the WCF web service, the project will also create a website to test and demonstrate the web service. Here is a link with more information. http://www.indiegogo.com/VOR

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• HTG Explains: Why Deleted Files Can Be Recovered and How You Can Prevent It

  - by Chris Hoffman

  When you a delete a file, it isn’t really erased – it continues existing on your hard drive, even after you empty it from the Recycle Bin. This allows you (and other people) to recover files you’ve deleted. If you’re not careful, this will also allow other people to recover your confidential files, even if you think you’ve deleted them. This is a particularly important concern when you’re disposing of a computer or hard drive. Image Credit: Norlando Pobre on Flickr 8 Deadly Commands You Should Never Run on Linux 14 Special Google Searches That Show Instant Answers How To Create a Customized Windows 7 Installation Disc With Integrated Updates

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• Week in Geek: Windows 8 Start Button Will not be Coming Back

  - by Asian Angel

  Our first edition of WIG for April is filled with news links covering topics such as a U.S. based credit card processor for VISA and MasterCard has suffered a major breach, specs for a real Linux-powered Star Trek tricorder have been published, an FBI assistant director says that U.S. is not winning the war with hackers, and more. Original, unmodified clipart image courtesy of Open Clip Art Library. How to Own Your Own Website (Even If You Can’t Build One) Pt 1 What’s the Difference Between Sleep and Hibernate in Windows? Screenshot Tour: XBMC 11 Eden Rocks Improved iOS Support, AirPlay, and Even a Custom XBMC OS

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• Ubuntu start up screen broken

  - by Parker

  I set up dual boot on my extra pc last night. first installed windows 7 and that went just fine. Downloaded Ubuntu and then did the MD5SUM and did not get a correct return that were listed on the site. I forgot to do that before I burnt the image to a disc. so I booted from the disc anyway to do the intergrity check and no errors were found. I then installed and everything seems fine except when it's booting, the purple screen is broken. should I try to redownload and re install?

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• Tile-wide extent tracing on a grid.

  - by Larolaro

  I'm currently working on A* pathfinding on a grid and I'm looking to smooth the generated path, while also considering the extent of the character moving along it. I'm using a grid for the pathfinding, however character movement is free roaming, not strict tile to tile movement. To achieve a smoother, more efficient path, I'm doing line traces on a grid to determine if there is unwalkable tiles between tiles to shave off unecessary corners. However, because a line trace is zero extent, it doesn't consider the extent of the character and gives bad results (not returning unwalkable tiles just missed by the line, causing unwanted collisions). So what I'm looking for is rather than a line algorithm that determines the tiles under it, I'm looking for one that determines the tiles under a tile-wide extent line. Here is an image to help visualise my problem! Does anyone have any ideas? I've been working with Bresenham's line and other alternatives but I haven't yet figured out how to nail this specific problem.

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• I am so confused about desktop/viewport switching, all I want to do is bind keyboard shortcuts to switch desktops

  - by Alex

  I've installed a pre-made Ubuntu 10.04 image at work, and I can't seem to figure out how to get desktop switching to work. No shortcuts work, and all the help I can get from the Ubuntu forums is "CTRL-Alt-Left/Right should work." So lemme get this straight. Switching between desktops is deprecated, so we use viewports, which are managed by Compiz, which has one of the most absurd configuration managers out there. Lovely. Can anyone straighten this out for me, and anyone else who might stumble on this question?

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• 1 Zettabyte Is Equal to 1 Million Petabytes

  - by Gopinath

  Geeks recently coined a new English term, Zettabyte, to measure the rapidly growing digital information footprint. So what is a Zettabyte? A Zettabyte is equal to 1 million Petabytes or 1 trillion terabytes and 1 quadrillion gigabytes. Symbol To Represent Zettabyte According to wikipedia the symbol ZB is used to represent a Zettabyte. So we can write 10 ZB to represent 10 Zettabytes. Human’s Digital Output Will be 1.2 Zettabytes By End Of 2010 Are you wondering why do we need a term to measure digital data? Tech research firm IDC has recently published a report that estimates current digital footprint created by us so far at 8 million Petabytes – the equivalent of 8,000,000,000,000 GB. This foot print is expected to pass 1.2 Zettabytes by the end of 2010. cc image credit:flickr Join us on Facebook to read all our stories right inside your Facebook news feed.

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• Will You Survive The Undead Apocalypse? [Action Flow-Chart Wallpaper]

  - by Asian Angel

  Think you would know what to do if the zombie apocalypse happened today? This awesome flow-chart from Game Informer can help you make the right decisions based on your location or time period! Note: Click on the image embedded in the post to view and download the full-size (2500*1763 pixels) wallpaper. Will You Survive The Undead Apocalypse? [Game Informer] HTG Explains: What The Windows Event Viewer Is and How You Can Use It HTG Explains: How Windows Uses The Task Scheduler for System Tasks HTG Explains: Why Do Hard Drives Show the Wrong Capacity in Windows?

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• Need to know best way to utilize LVM to backup Ubuntu

  - by William Leininger

  So I've had issues with Windows which forced me to install and learn Ubuntu as I'm fed up with MSFT. So now I need to know the most efficient/best way to image Ubuntu so that if I messed something up in one point in time I could always come back to the healthy point in time. During the install I saw an option for LVM and read what it is though I don't know how to utilize it to prevent a situation where I have to reinstall everything. Help? Note: I found on the right hand side of this Ask A Question area an area titled Similar Questions giving me Setting up LVM Snapshot as a backup/restore point in ubuntu This is pretty in depth and a bit complex, though completely doable, is it possible to just use LVM out of the box after a complete HDD wipe and normal Ubuntu install? :Fingers crossed and rabbits foot in hand:

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• This Is a Completely Accurate Illustration of Me at My Last Job [Comic]

  - by The Geek

  Work is boring, what can I say? Usually I was up way too late every night, making the whole situation much worse. It got so bad that one of my co-workers took pictures for blackmail. =) Latest Features How-To Geek ETC How To Colorize Black and White Vintage Photographs in Photoshop How To Get SSH Command-Line Access to Windows 7 Using Cygwin The How-To Geek Video Guide to Using Windows 7 Speech Recognition How To Create Your Own Custom ASCII Art from Any Image How To Process Camera Raw Without Paying for Adobe Photoshop How Do You Block Annoying Text Message (SMS) Spam? Change Your MAC Address to Avoid Free Internet Restrictions Battlestar Galactica – Caprica Map of the 12 Colonies (Wallpaper Also Available) View Enlarged Versions of Thumbnail Images with Thumbnail Zoom for Firefox IntoNow Identifies Any TV Show by Sound Walk Score Calculates a Neighborhood’s Pedestrian Friendliness Factor Fantasy World at Twilight Wallpaper

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