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  • Is it possible to create an efficient UDF alternative to Excel's CUBEVALUE function?

    - by bright
    We'd like to create a simpler alternative to Excel's CUBEVALUE function for retrieving data from an OLAP server. The details aren't critical, but briefly, our function will "know" the source connection and accept a very simple ticker-like parameter and a date, in place of CUBEVALUE's MDX-style parameters. This is for internal use within our firm, just FYI. However, Excel has optimized CUBEVALUE so that calls to the OLAP server are batched. Question: Is there a way to code the new function so that it can similarly batch calls rather than issue a separate query for each cell?

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  • What's the best Linux backup solution?

    - by Jon Bright
    We have a four Linux boxes (all running Debian or Ubuntu) on our office network. None of these boxes are especially critical and they're all using RAID. To date, I've therefore been doing backups of the boxes by having a cron job upload tarballs containing the contents of /etc, MySQL dumps and other such changing, non-packaged data to a box at our geographically separate hosting centre. I've realised, however that the tarballs are sufficient to rebuild from, but it's certainly not a painless process to do so (I recently tried this out as part of a hardware upgrade of one of the boxes) long-term, the process isn't sustainable. Each of the boxes is currently producing a tarball of a couple of hundred MB each day, 99% of which is the same as the previous day partly due to the size issue, the backup process requires more manual intervention than I want (to find whatever 5GB file is inflating the size of the tarball and kill it) again due to the size issue, I'm leaving stuff out which it would be nice to include - the contents of users' home directories, for example. There's almost nothing of value there that isn't in source control (and these aren't our main dev boxes), but it would be nice to keep them anyway. there must be a better way So, my question is, how should I be doing this properly? The requirements are: needs to be an offsite backup (one of the main things I'm doing here is protecting against fire/whatever) should require as little manual intervention as possible (I'm lazy, and box-herding isn't my main job) should continue to scale with a couple more boxes, slightly more data, etc. preferably free/open source (cost isn't the issue, but especially for backups, openness seems like a good thing) an option to produce some kind of DVD/Blu-Ray/whatever backup from time to time wouldn't be bad My first thought was that this kind of incremental backup was what tar was created for - create a tar file once each month, add incrementally to it. rsync results to remote box. But others probably have better suggestions.

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  • Review of Agile Project Management Software

    - by John K. Hines
    Bright Green Projects have an admittedly older blog post entitled Review of Agile Project Management Software | Scrum Kanban Methodology. Since I haven't had time to review Scrum project management tools in quite awhile, it was nice to find a write-up that's as succinct as this one. The thing I like the best about Bright Green's site, besides the product, is the vocabulary they use to describe Agile software development. For example, the couple Scrum with the development methodology they're using (Lean Kanban). Many organisations simply say they're using Scrum, which itself doesn't proscribe any engineering practices. It would add some clarity for teams to adopt the Scrum-Method terminology. At least then you could know if you're walking into a Scrum-Chaos situation.

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  • List of Lua derived VMs and Languages

    - by Shane Holloway
    Is there a compendium of virtual machines and languages derived or inspired by Lua? By derived, I mean usage beyond embedding and extending with modules. I'm wanting to research the Lua technology tree, and am looking for our combined knowledge of what already exists. Current List: Bright - A C-like Lua Derivative http://bluedino.net/luapix/Bright.pdf Agena - An Algol68/SQL like Lua Derivative http://agena.sourceforge.net/ LuaJIT - A (very impressive) JIT for Lua http://luajit.org MetaLua - An ML-style language extension http://metalua.luaforge.net/

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  • Internet Explorer changes brightness

    - by Sale
    I have a very annoying problem with IE8 on Vista: My screen brightness changes when I view a page with IE. It slowly dimms brightness some 20% - enough to be noticeable. This seems to be dependent on the OVERALL brightness of the page viewed or of the amount of bright space on the page... sometimes it dimms down if the page is bright, sometimes the complete different, it dimms when lot of dark space is on the page. I know this sounds weird, I cannot describe it better. It takes about one,two seconds from on brightness level to the other. This ONLY occurs in IE - not in Word or any other application. Please help! This dimming is very stressfull for my eyes.

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  • Dirt Cheap DSLR Viewfinder Improves Outdoor DSLR LCD Visibility

    - by Jason Fitzpatrick
    If the excitement you felt about having a DSLR capable of shooting video wore off the second you took it outside and realized you needed an expensive add-on viewfinder to use it in sunlight, this cheap DIY viewfinder is for you. The digital video capabilities of new DSLR cameras are amazing and changing the way people interact with movie production. What’s not awesome, however, is how the LCD screen gets completely washed out in bright conditions and you almost always have to buy a $50+ aftermarket accessory to make the LCD functional under those conditions. Courtesty of the Frugal Film Maker we have the following video tutorial showing us how to turn a plastic container, a cheap dollar-store magnifying glass, a headphone ear cover, and some glue and hair ties into a dirt cheap LCD viewfinder. You’ll never have to squint or miss a shot because of bright lighting conditions again–even better yet, you’ll only spend a few bucks for the whole project. For step by step instructions in print form, hit up the link below. Homemade DSLR Viewfinder [Instructables via Make] Latest Features How-To Geek ETC How To Make Disposable Sleeves for Your In-Ear Monitors Macs Don’t Make You Creative! So Why Do Artists Really Love Apple? MacX DVD Ripper Pro is Free for How-To Geek Readers (Time Limited!) HTG Explains: What’s a Solid State Drive and What Do I Need to Know? How to Get Amazing Color from Photos in Photoshop, GIMP, and Paint.NET Learn To Adjust Contrast Like a Pro in Photoshop, GIMP, and Paint.NET Bring the Grid to Your Desktop with the TRON Legacy Theme for Windows 7 The Dark Knight and Team Fortress 2 Mashup Movie Trailer [Video] Dirt Cheap DSLR Viewfinder Improves Outdoor DSLR LCD Visibility Lakeside Sunset in the Mountains [Wallpaper] Taskbar Meters Turn Your Taskbar into a System Resource Monitor Create Shortcuts for Your Favorite or Most Used Folders in Ubuntu

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  • Fiber-Optic Cable Trick Brings Remote Triggering to Older Flashes

    - by Jason Fitzpatrick
    Many older flashes lack for a jack to input a sync cable and rely exclusively on a simple slave mode triggered by the primary flash. This hack uses a piece of scrap fiber optic cable to trigger the flash in bright conditions. Using a flash as an optical slave indoors isn’t much of a problem, but if you introduce bright light (such as outdoor lighting conditions), the ambient light can overpower the small on-camera flash and render the optical slave function useless. To overcome this, Marcell over at Fiber Strobe (a blog dedicated to cataloging experiments in incorporating fiber optics into photography) came up with a simple work around. By using some foam crafting materials and tape, he whipped up a simple mount for a strand of scrap fiber optic cable to connect between the on-camera flash and the sensor on the slave flash. Once attached it works exactly like as sync cable would, except it’s transmitting a pulse of light instead of a pulse of electricity. Hit up the link below for more pictures and a build guide. DIY Fiber Sync Cord [via DIY Photography] HTG Explains: What Is Windows RT and What Does It Mean To Me? HTG Explains: How Windows 8′s Secure Boot Feature Works & What It Means for Linux Hack Your Kindle for Easy Font Customization

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  • Easter eggs as IP protection in software

    - by Simon
    I work in embedded software, and for some reason, management wants to hide an Easter egg as means of IP protection. They call it a watermark, and since our software interact with the video preview feed (the image displayed on a screen before you take a photo), they want me to implement a trigger which will react to some unusual video input (a video konami code like dark - bright - dark - bright - whatever). When this trigger fires, something strange happens (which is outside of the normal behavior of the software). The goal is to check whether our software is included in a device. Does it sound like a good idea? I have many argument against this move: What if the konami code is too sensitive and user triggers it? Does this kind of watermark have any legal value? What if this "feature" is discovered by the client? The performance penalty should be very small, since the soft run on small devices. I am the one developping this trigger. If things go wrong, what is my responsibility? What is your opinion about this method? I can't find a link, but I remember seeing an answer on this site suggesting that putting Easter eggs for protection purpose was a good idea. Has anyone tried it with good results?

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  • Thinkpad W510 with default graphics drivers shows weird brightness issues

    - by Chantz
    Hey guys, I am currently running 10.10 - 32 bit on a new Thinkpad W510 with nVidia Quadro FX 880M graphics card. I am running with the default graphics drivers that installed with ubuntu install. My problem is that when I am logging in the screen acts normally as far as birghtness is concerned. I can increase/decrease brightness with Fn keys. But few seconds after I log in screen goes pitch dark. Hitting Fn+Home flickers the screen to all the way bright, then all the way dark. This behavior continues until I reach maximum brightness, in which case the screen stays all the way bright, for a few more seconds and then again goes dark if there is no activity & the cycle continues. Have you guys faced any of these issues? If so any pointers on how to resolve it. I am not alone, on ubuntu forum I saw another person having the same issue - link but no solution. Please help! UPDATE I followed the instructions that htorque mentions in his answer and it worked.

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  • UISegmentedControl selected segment color

    - by Mike
    Is there any way to customize color of selected segment in UISegmentedControl? I've found segmentedController.tintColor property, which lets me customize color of the whole segmented control. The problem is, when I select bright color for tintColor property, selected segment becomes almost unrecognizable (its color is almost the same as the rest of segmented control, so its hard to distinguish selected and unselected segments). So I cannot use any good bright colors for segmented control. The solution would be some separate property for selected segment color but I cannot find it. Did anyone solve this?

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  • Internet Explorer changes brightness

    - by Sale
    I have a very annoying problem with IE8 on Vista: My screen brightness changes when I view a page with IE. It slowly dimms brightness some 20% - enough to be noticeable. This seems to be dependent on the OVERALL brightness of the page viewed or of the amount of bright space on the page... sometimes it dimms down if the page is bright, sometimes the complete different, it dimms when lot of dark space is on the page. I know this sounds weird, I cannot describe it better. It takes about one,two seconds from on brightness level to the other. This ONLY occurs in IE - not in Word or any other application. Please help! This dimming is very stressfull for my eyes.

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  • Only variables can be passed by reference

    - by zaf
    I had the bright idea of using a custom error handler which led me down a rabbit hole. Following code gives (with and without custom error handler): Fatal error: Only variables can be passed by reference function foo(){ $b=array_pop(array("a","b","c")); return $b; } print_r(foo()); Following code gives (only with a custom error handler): (2048) Only variables should be passed by reference function foo(){ $a=explode( '/' , 'a/b/c'); $c=array_pop(array_slice($a,-2,1)); return $c; } print_r(foo()); The second one worries me since I have a lot of 'compact' code. So, I either ditch the bright idea of using a custom error handler (to improve my logging module) or expand all my code. Anyone with better ideas? Also, WTF?

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  • Quote of the Day: Substitutions

    - by BuckWoody
    “Ours is the age of substitutes: Instead of language we have jargon, instead of principles, slogans, and instead of genuine ideas, bright suggestions.”  Eric Bently Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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  • Quote of the Day: Substitutions

    - by BuckWoody
    “Ours is the age of substitutes: Instead of language we have jargon, instead of principles, slogans, and instead of genuine ideas, bright suggestions.”  Eric Bently Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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  • Mystical Energy Wallpaper Collection for Your iPad

    - by Akemi Iwaya
    The air starts to crackle around you as bright light appears, serving as a portal that transports you into a whole new and strange world beyond your imagination. Travel to new realms of thought, emotion, and energy on your iPad’s screen with the first in our series of Mystical Energy Wallpaper collections. Mystical Energy Series 1 Note: Click on the pictures to view and download the full-size versions at their individual homepages. The images shown here are in thumbnail format.                     

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  • How to Identify Stuck Pixels and Remove Them from Your Digital Photos

    - by Jason Fitzpatrick
    If you’ve noticed hotspots in your digital photos, areas where a stuck pixel in the camera’s sensor has rendered very bright spots of color that don’t belong in the image, you’re not alone. It’s an incredibly common phenomenon, but that doesn’t mean you have to put up with it. Read on as we discuss what distinguishes stuck pixels from other sensor defects and problems, how to identify it, and how to fix it both in-camera and out.Click Here to Continue Reading

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  • [OT] Gates Millenium Scholars scholarship program

    - by John Paul Cook
    Here's a notice about scholarship opportunities that many students may miss because of being out for the holidays. If you know a bright, deserving student, please alert him or her to this outstanding scholarship opportunity. Here is what I want for Christmas from you, my readers. I want to see LOTS of comments about how you informed a student about this scholarship or otherwise got the word out. Dear Student, The Bill & Melinda Gates Foundation proudly announces the 2011 Gates Millennium Scholars...(read more)

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  • What are some good game development programs for kids?

    - by John Giotta
    I know a very bright little boy who excels in math, but at home he's glued to his Nintendo DS. When I asked him what he wanted to do when he grew up he said "Make video games!" I remember a few years there was mention of a MIT software called Scratch and thought maybe this kid can do want he wants to do. Has anyone used any of the "game development" for kids softwares out there? Can you recommend any?

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  • Color scheme for programmers

    - by seler
    Recently I've discovered Solarized. It's supposed to reduce eye-fatigue and after using it for a while i must say it's true. When I switched back to my old colors they were damn to bright. I don't really like the colors in Solarized theme but I'm astonished by the effect it has on my eyes. I'm wondering if there are other themes designed with such a precision for wide range of IDEs (and even terminal colors!). Another example is Zenburn

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  • Ubuntu 10.04 Cant Adjust brightness on my lenevo Thinkpad?

    - by Mo.
    I cant seem to be able to adjust the brightness on my think-pad laptop running Ubuntu 10.04. In the power management applet it shows that the power is set to 100%, but even if i try to lower it the actual screen brightness dosent change. Any ideas of how I can get around this? I tried changing the brightness from the terminal but its already set to Max brightness (however the actual screen brightness is no that bright at all). Thanks

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