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• Drawing an outline around an arbitrary group of hexagons

  - by Perky

  Is there an algorithm for drawing an outline around around an arbitrary group of hexagons? The polygon outline drawn may be concave. See the images below, the green line is what I am trying to achieve. The hexagons are stored as vertices and drawn as polygons. Edit: I've uploaded images that should explain more. I want to favour convex hulls because it's conveys an area of control more quickly. Each hexagon is stored in a multidimensional array so they all have x and y coordinates, I can easily find adjacent hexagons and the opposite vertex, i.e. adjacentHexagon = getAdjacentHexagon( someHexagon, NORTHWEST ) if there isn't a hexagon immediately adjacent it will continue to search in that direction until it finds one or hits the map edges.

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• Beginners Guide to Visual Studio LightSwitch makes it easy to take a closer look

  - by Jim Duffy

  Following up on my most recent post about LightSwitch I thought I’d keep you in the loop on a valuable LightSwitch resource. The Beginners Guide to Visual Studio LightSwitch provides a jump start to get you and the department-level-typical-Access-application-developing-power-user rolling with LightSwitch in no time. The guide is broken down into 4 easy to follow parts. Beginners Guide to Visual Studio LightSwitch (Part – 1) – Working with New Data Entry Screen Beginners Guide to Visual Studio LightSwitch (Part – 2) – Working with Search Screen Beginners Guide to Visual Studio LightSwitch (Part – 3) – Working with Editable DataGrid Screen Beginners Guide to Visual Studio LightSwitch (Part – 4) – Working with List and Details Screen I mentioned it in my prior post but don’t forget to check out Beth Massi’s blog for additional information on Visual Studio LightSwitch. Have a day.

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• How to Forward Local Drives to Remote Machines Using Remote Desktop

  - by Taylor Gibb

  Have you ever had a file on a flash drive that you needed to use on a machine that is situated in another building or even halfway across the world? You can do that by plugging it into your local machine and then forwarding the drive through your remote session to that machine. Here’s how to do it. Press the Windows Key and R to bring up a run box, and type mstsc to launch the Remote Desktop Connection Dialog, or you can just search for Remote Desktop in the Start Menu. Click on the arrow next to options to see some of the more advanced options. How to Make the Kindle Fire Silk Browser *Actually* Fast! Amazon’s New Kindle Fire Tablet: the How-To Geek Review HTG Explains: How Hackers Take Over Web Sites with SQL Injection / DDoS

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• MacBook Pro (5) touchpad stops working after upgrading from Ubuntu 10.10 to Ubuntu 11.04

  - by Rob

  After upgrading from Ubuntu 10.10 to Ubuntu 11.04, my MacBook Pro's touchpad stopped working. It works fine on the login screen, but after logging in it stops working. (Answering my own question, in the hope that it saves someone else a bit of head scratching. I'm a new user, so couldn't answer in a separate post for the next few hours). After the upgrade, your Gnome desktop configuration may have gone awry. There are a few settings which enable or disable the touchpad in certain contexts which may need tweaking to get the touchpad working again. Here's how I got mine working again: Hit Alt-F2, and run 'gconf-editor' Navigate to desktop-gnome-peripherals Ensure that peripherals-touchpad:touchpad is enabled. Ensure that peripherals-bcm5974:disable_while_other_device_exists is disabled. 'bcm5974' is probably specific to my MacBook Pro's hardware, so you may need to search around for variable disable_while_other_device_exists under the entries listed under peripherals. HTH

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• Is It bad for SEO to have internal redirected links? [closed]

  - by Jonas Lindqvist

  I have a large number of pages having similar but not identical content. Example: site.com/dream_dictionary_flying and site.com/dream_interpretation_flying. The problem is that although not being identical, they are sometimes on the edge of being duplicate content. The solution via redirect 301 in htaccess is simple and can be done in a minute, BUT, changing all existing links on the whole site from "/something" to "/something_else" would take ages, it would be thousands of manual changes taking x hundreds of hours. My question is this; is it bad for SEO to have internal links that are redirected, or rather HOW bad is it? For the human user it would not matter at all but from what I have experienced, the search engines don't like it. Is there any rule of thumb here? Please come back with your thoughts and experience on this. Thanks!

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• HTTP 303 redirection and robots.txt

  - by Ian Dickinson

  On a site I'm working on, we're using the HTTP 303 redirect pattern (see this article for background) to distinguish between information and non-information resources. So: some URL's under /id get redirected to dynamically-created pages under /doc. These dynamic pages are built from a database, and contain links to other /doc/ resources, so in general we don't want them to be crawled. Our robots.txt contains: Disallow: /doc However, we do want the non-redirected pages under /id to get indexed by Google et al: Allow: /id So the question I have, which I can't find an answer to so far, is: if an allowed /id page 303-redirects to a /doc page, will it still be blocked by robots.txt? If yes, we're OK, but otherwise I'm going to disallow all /id resources in the robots file, as having the crawler hammer the db would be worse than losing search indexing for the /id pages.

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• Is there a preferred way to set up a virtual Ubuntu server on a desktop?

  - by Keith Groben

  I love Ubuntu, and as I am searching the internet, I am finding that some questions I have have not been answered yet. One of them is if there is a preferred way to set up a virtual server. I look through the Ubuntu Software Center, but found nothing from the search "Virtual Server" I then searched the internet and found lots of posts to trouble-shoot VMWare virtual servers. So, like a good researcher I looked in the Software center for VMWare. Sure enough I found "user agent" and "view open client". I didn't get sufficient info from the software center. And searching the website only left me scratching my head. I want to install Ubuntu Server Edition. I already have a server, but am cautious "trying out" things on it. So a virtual server sounds like what I need.

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• Over a million COBOL porgrammers in the world?

  - by Lucas McCoy

  I think I heard on a previous StackOverflow podcast that COBOL was used as the programming language for traffic lights (or something like that), so this got me interested. I did a quick Google search and found this little article: Today, Cobol is everywhere, yet largely unheard of by millions of people who interact with it daily when using the ATM, stopping at traffic lights or buying a product online. The statistics on Cobol attest to its huge influence on the business world: There are over 220 billion lines of Cobol in existence, a figure which equates to about 80 per cent of the world’s actively used code. There over a million Cobol programmers in the world. There are 200 times as many Cobol transactions that take place each day than Google searches. I didn't really trust the source seeing as how it's on some random PHPBB forum. So how accurate are these figures? Are there really 220 billion lines of COBOL? I assume a few people/companies still use COBOL, but how many?

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• How to create an auto-grader in and for Python

  - by recluze

  I'm trying to create an auto-grader for one of my beginning programming courses for python. From my online search, I've come to know that it is effectively a unit test framework that tests the student's code rather than production code but I'm not really sure how to structure the flow of the program. Can anyone please provide a strategy for submission of code by students and automating the whole process of marking? For instance, how would the student code be submitted and then stored/structured on disk, how would the grades be stored/reported? I'm only looking for a broad strategy and will try on my own to fill in the blanks. (I asked this on stockoverflow.com initially but it's considered as off-topic and I was suggested to ask here.)

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• How can I prevent Google mistakenly offering to translate a page?

  - by DisgruntledGoat

  Several of my site's pages are appearing in search results with [Translate this page] next to it. When I click that it takes me to Google Translate and translates my page "from Catalan to English". The pages are in English but have a couple of foreign words (actually Japanese romanisations, not Catalan) that appear to be tripping Google up. A few weeks ago I set the html tag to <html lang="en"> which from research appears to be the best method to specify the language of a document. Google has cached the pages with this attribute but it is still offering to translate. More research led me to a "notranslate" attribute which prevents translation entirely: <html lang="en" class="notranslate">. The problem now is users cannot translate from English to their desired language! Are there any other solutions that force Google to parse my site as English only?

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• Q&amp;A: How do I cancel my Windows Azure Platform Introductory Special? (or any Subscription)

  - by Eric Nelson

  Short answer: Don’t! Just kidding :-) Long answer: I believe it is the same process as for other Microsoft Online Services – but I have never tried it. Hence please post a comment if you follow this successfully or not and I will amend. From http://www.microsoft.com/online/help/en-us/mocp/, search for “cancel” and you get: What I am not clear about is whether an Introductory Special is classed as a trial. Either way, the answer is to contact support and ask to cancel. I would suggest you are fully armed with details of your subscription which you can get from signing in to https://mocp.microsoftonline.com. You can contact support via a online web form at https://mocp-support.custhelp.com/ Or You can call them. The details are again on the support page http://www.microsoft.com/online/help/en-us/mocp/  In the UK you can call 0800 731 8457 or (0) 20 3027 6039 Monday – Friday 09:00 – 17:00 GMT (UTC). I hope that helps.

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• Regardig Vb.net [closed]

  - by user68999

  hi everyone i am making a project for school management and manage all the record of student so I'm using VB.net 2008 and sql server 2008. i have a problem when i enter student date of birth in text box with date&time picker in database. but i want in the search option enter the date from date&time picker and get age of all the student data in data-view grid. like student are 10 year old, 11 year old etc. so how it can possible please help..........?

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• Which Programming Languages Support the Following Features?

  - by donalbain

  My personal programming background is mainly in Java, with a little bit of Ruby, a tiny bit of Scheme, and most recently, due to some iOS development, Objective-C. In my move from Java to Objective-C I've really come to love some features that Objective-C has that Java doesn't. These include support for both static and dynamic typing, functional programming, and closures, which I'm trying to leverage in my code more often. Unfortunately there are trade-offs, including lack of support for generics and (on iOS at least) no garbage collection. These contrasts have lead me to start a search for some of the programming languages that support the following features: Object Oriented Functional Programming Support Closures Generics Support for both Static and Dynamic Typing Module Management to avoid classpath/dll hell Garbage Collection Available Decent IDE Support Admittedly some of these features(IDE support, Module Management) may not be specific to the language itself, but obviously influence the ease of development in the language. Which languages fit these criteria?

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• USB Audio Device Loopback Through Speakers

  - by matto1990

  I have a USB turntable which when plugged in to my ubuntu 10.10 machine appears in the audio settings as an input device (USB PnP Audio Device Analog Stereo) like a microphone. What I'd like to be able to do it to have the sound for that audio device played back through the audio output (speaker or whatever). I'm not too worried if there's a slight delay between the audio coming in and it being played out through the speakers. As far as I'm aware this is refereed to as software loopback. I can achieve exactly what I want if I open Audacity, enable software loopback and press record. Obvious this isn't ideal as I don't really want it recording what I'm playing all the time. I know this is possible because of the Audacity example however I'd like to know if there's a way to do it without it recording. I've search around for a while for a piece of software that does this, however I couldn't get anything even close. Any help would be greatly appreciated.

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• Breadcrumb for multiple categories

  - by Damodar Bashyal

  I post in multiple categories, so is it better to have: Consulting Services Implementation Service A Consulting Services Optimization Service A Consulting Services Upgrade Service A or, Consulting Services Implementation, Optimization, Upgrade Service A I was doing second way, the problem is google doesn't show 3rd set of crumbs. ie it only displays: Consulting Services on search result. But having multiple breadcrumbs on the page doesn't look good. any suugestions? Update For @PatomaS 's question I mean 3 lines of breadcrumbs, see above i have posted same article (Service A) in 3 categories (Implementation, Optimization, Upgrade). So you can reach same article through 3 categories. So whats the best breadcrumb to display on article 'Service A'?

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• 302 Moved Temporarily or 301?

  - by user11221

  I have a question on redirects. HTTP status code checker tool shows "HTTP/1.1 302 Moved Temporarily" for the home page url http://someurl.com (just a namesake url). Also, this url opens up http://www.someurl.com/general/index. As you can see, a non-www url to a www url redirect is happening. My questions are: Is a 302 redirect acceptable for the home page? Will this affect the site showing up in search results in anyway? Isnt redirection to /general/index a bad practice?

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• Potential issues with multiple home pages

  - by Maxim Zaslavsky

  I have a site where I want to have two different home pages: a general description page for anonymous users, and a dashboard page for logged-in users. I am debating between two implementations: Both pages live at / The page for anonymous users is located at / and the dashboard is at /dashboard, with automatic redirection between them based on whether a given user is logged in (e.g., if you're logged in and navigate to /, you are redirected to /dashboard. Is it cleaner to have both pages use the same URL or separate URLs? Also, I imagine that choices for that question will affect the following: Caching: the anonymous page would be completely cached, while the logged-in page would not be cached at all (except for static resources). This could lead to issues with server caching, request speed, and UX (such as if one version of the page is cached in a user's browser when the other version should be displayed, instead). SEO: how would search engines react to such canonical URLs? Load time (due to redirects or to the server having to always reevaluate which page to display)

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• iOS: Versioned static frameworks vs Git Submodules and included code

  - by drekka

  For the last couple of years I've been building static frameworks of common APIs for my iOS projects. I can build a universal binary containing all the architectures (i386, armv6, armv7) and wrap it up in a .framework directory structure. I then stored this in a directory based on the version of the framework. For example ..../myAPI/v0.1.0/myAPI.framework Once I have this framework I can then easily add it to a project and if I want to advance the version, merely change the framework search paths to the later version. This works, but the approach is very similar to what I would use in the Java world. Recently I've been reading about using Git submodules and static framework sub projects in XCode 4. Im wondering if my currently approach is something that I should consider retiring and what the pros/cons are of the new approach. I'm weary of just including code because I've already had issues in a work project which had (effectively) multiple versions of a third party API. Any opinions?

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• How to secure robots.txt file?

  - by CompilingCyborg

  I would like for User-agents to index my relative pages only without accessing any directory on my server. As initial thought, i had this version in mind: User-agent: * Disallow: */* Sitemap: http://www.mydomain.com/sitemap.xml My Questions: Is it correct to block all directories like that - Disallow: */*? Would still search engines be able to see and index my sitemap if i disallowed all directories? What are the best practices for securing the robots.txt file? For Reference: Here is a good tutorial for robots.txt #Add this if you want to stop Alexa from indexing your site. User-agent: ia_archiver Disallow: / #Add this to stop duggmirror User-agent: duggmirror Disallow: / #Add this to allow specific agents User-agent: Googlebot Disallow: #Add this to allow all agents while blocking specific directories User-agent: * Disallow: /cgi-bin/ Disallow: /*?*

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• Windows 2008 R2, UDDI 3.0 and No Admin Links

  - by Andy Morrison

  Windows 2008 R2 might end up giving me a heart attack at some point. Yesterday I installed and configured UDDI 3.0 as part of an ESB 2.0 install & config.  After configuring UDDI 3.0, if I browsed to the localhost/uddi virtual directory from IIS, all of the links would show up in UDDI.  If opened up IE and went to the UDDI site only the Home and Search links would show up. You've probably already guessed at what the "fix" was... I had to Run IE as Administrator.  Then when I browse to the UDDI site all of the links show up.

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• High contrast theme Firefox problem

  - by user87239

  I am using the high contrast inverse theme in 12.04 as I am visually impaired. This generally works great but causes a problem in Firefox as entered text e.g into a Google search is white. As the text background is also white you cannot see what you are typing. I have read through a good thirty websites with similar issues but thus far nothing works. I have tried all the settings in Firefox like un-checking "Use System Defaults" as well as manually telling Firefox what colours to use and these setting have absolutely no effect on anything.

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• Finding closest object to a location within a specific perpendicular distance to direction vector

  - by Sniper

  I have a location and a direction vector indicating facing, I want to find the closest object to that location that is within some tolerance distance (perpendicular distance) to the ray formed by the location and direction vector. Basically I want to get the object that is being aimed at. I have thought about finding all objects within a box and then finding the closest object to my vector from them results, but I am sure that there is a more efficient way. The Z axis is optional, the objects are most likely within a few meters of the search vector.

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• Would google consider this a "link scheme"?

  - by Abe Miessler

  I work for a County Government. In an effort to improve our search engine rankings I was considering contacting some of the other Counties in my state and seeing if we could setup an arrangement where we link to them and they link to us. It seems like a reasonable thing to have a "Other Counties" page with various links on a County website, but it also seems like it's bordering on a link scheme according to Google. When I read Google's article about link schemes it seems like we hit some of the right reasons for having links on another County's site but also some of the wrong. Does anyone have any insight into whether this is a good or bad idea?

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• What's the difference between MCSD and MCPD?

  - by Damien

  I am looking on the website but the difference between the two isn't explained. To complicate matters a Google search tells me that developers should focus on the MCPD qualifications but an examination of the MCPD section of the site is telling me that the Web Application exams will expire in July 2013! It seems out of date. Meanwhile the MCSD exam seems to be a lot more up to date with references to HTML5/ASP.net 4.5 MVC applications! What's the difference. Are the MCPD going to be updated after July? Thanks

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• How does hreflang interact with geo targeting?

  - by zakgottlieb

  If I have multiple subfolders that I wish to target at different countries, I'm thinking the ideal set up would be to specify rel="alternative" hreflang with a language AND country code (e.g. en-AU) and ALSO to geotarget that subfolder to the particular country. That way, the pages would be showing up both in the country-specific results (accessed via Search Tools) because of hreflang, AND the more generic country results from regular searches, because of geotargeting. Is this correct? p.s. What would happen if you geotargeted a subfolder which had e.g. pt-BR hreflang value (i.e. Portuguese-Brazil) to just Portugal?

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