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• SnapBird Supercharges Your Twitter Searches

  - by ETC

  Twitter’s default search tool is a bit anemic. If you want to supercharge your Twitter search, fire up web-based search tool SnapBird and dig into your past tweets as well as those of friends and followers. Yesterday I was trying to find a tweet I’d sent some time last year regarding my search for an application that could count keystrokes for inclusion in my review of the app I finally found to fulfill the need, KeyCounter. Searching for it with Twitter’s search tool yielded nothing. One simple search at SnapBird and I nailed it. SnapBird requires no authentication to search public tweets (both your own and those of your friends and follows) but does require authentication in order to search through your sent and received direct messages. SnapBird is a free service. SnapBird Latest Features How-To Geek ETC Internet Explorer 9 RC Now Available: Here’s the Most Interesting New Stuff Here’s a Super Simple Trick to Defeating Fake Anti-Virus Malware How to Change the Default Application for Android Tasks Stop Believing TV’s Lies: The Real Truth About "Enhancing" Images The How-To Geek Valentine’s Day Gift Guide Inspire Geek Love with These Hilarious Geek Valentines MyPaint is an Open-Source Graphics App for Digital Painters Can the Birds and Pigs Really Be Friends in the End? [Angry Birds Video] Add the 2D Version of the New Unity Interface to Ubuntu 10.10 and 11.04 MightyMintyBoost Is a 3-in-1 Gadget Charger Watson Ties Against Human Jeopardy Opponents Peaceful Tropical Cavern Wallpaper

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• How can I making Twitter, Facebook and Reddit share buttons load last?

  - by Daniel Bingham

  I have a website with a number of pages that sport twitter, facebook and reddit share buttons. They take forever to load and until they do the rest of the page doesn't load. So how I can make them load last? Currently, they are loaded something like this: <div class="item"><a href="http://twitter.com/share" class="twitter-share-button" data-count="vertical" data-via="FridgeToFood" data-related="danielBingham:Recipe and update tweets from Fridge to Food.">Tweet</a><script type="text/javascript" src="http://platform.twitter.com/widgets.js"></script></div> <div class="item"><script src="http://connect.facebook.net/en_US/all.js#xfbml=1"></script><fb:like layout="box_count" width="40"></fb:like></div> <div class="item"> <script type="text/javascript">reddit_target='recipes';</script> <script type="text/javascript" src="http://reddit.com/static/button/button2.js"></script> </div> They are in a div called "shareWrapper" and are loading to one side of the page. The buttons load where ever the script code is placed. As far as I know, I can't place the script code at the bottom of the page and move the resulting buttons after the fact. I want them to appear near the top, which right now means they are stopping everything below them from loading for several seconds. I tried loading them using javascript, but using JQuery's $(document).ready(), but that failed. It seems to leave the page in some sort of loading loop from which it never emerges. Are there other ways to get these to load last?

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• How much time do you spend in this site with work on your desk?

  - by David Conde

  This is a simple question, because I want to see if there is a collective tendency to do this: How much time do you spend snooping around in StackOverflow, Programmers, and all those heavenly sites even when having work on the desk? Are these sites becoming facebook, in our case? I used to enter facebook from time to time... it's been like 20 days now and I dont even care about it. All I want to see is what are the latest post of my geeky friends around here..! Is this collective?

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• What is "networking" for your career and how do you know if you have done it successfully?

  - by Jay Godse

  Many people suggest "networking" as a tool or technique to build your career, get better jobs, get promotions, et cetera. But what is "networking"? And more importantly, how do you know if you have "networked" or "built your network" "successfully"? (I quoted all the terms which I think may have subjective and widely varying definitions). Many folks think that networking is schmoozing at networking events. Others think it is adding "friends" to Facebook or LinkedIn. But how do measure the success of such networks or activities? But we all know people (perhaps ourselves) who have done those things and still have trouble getting jobs, promotions, and recognition.

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• Twitter's new approach of third party application? How would you see this move as developer.... especially you plan to build a twitter client.

  - by MobileDev123

  Just today morning I have read news that twitter has issued a warning to developers not to make any new third party client, the official announcement can be read here. As a programmer, how do you see this move of twitter? Does it seems that they want to standardize the behavior of third party client or they don't want any new client in favor of the default clients they have made? What if anybody wants to create a new client? Is there any guidelines that-if followed- ensure that we can create a new mobile client? Or we should stop thinking about it? What are the option for the developers who want to build some clients for twitter? I can realize that I have asked too many questions, but I still think that there can be one common answer.

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• Wired : "Japanese despise western games" - how much is it true?

  - by user712092

  Wired has article that western games are seen as "bad games". Why is that? If that is true, than what do they see as bad? This article, i think, is biased towards western games: “The other day,” says Q Entertainment’s Mielke, “I was having lunch with a friend and I said, ‘Have you ever played StarCraft?’ And he said, ‘What’s StarCraft?’ Sometimes it’s just really shocking that their gaming vocabulary isn’t as extensive as it could be. I think Japanese game developers need to start playing other people’s games to open their minds, just like a writer might want to read classic literature to be inspired.” Rather than trusting such articles, I rather ask here.

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• How many achievements should I include, and of what challenge?

  - by stephelton

  I know this question is fairy broad and subjective, but I'm wondering if there's been any published research into what an optimal number of achievements is and what kind of challenge they should present. The game this question directly relates to is a shoot-em-up, but an ideal answer is fairly theoretical. If there are there are too few achievements, or they are not challenging, I would expect they would fail in their goal to keep people playing. If there are too many, or they are unreasonably difficult, I would expect people to quickly give up. I personally witnessed the latter happening in Starcraft 2; a section of the achievements would have you win hundreds of games against their AI opponents (boring!)

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• What is the lowest ICQ number that was ever used? [closed]

  - by zzatkin

  I'm not sure if this is the correct place to post this question, so feel free to move it. I was wondering, since this is a tech-orientated questionnaire website, that someone would know what the lowest ICQ number ever used was. From doing some research, I found a lot of mixed answers, and I also found out that there was a beta period where the first few thousand numbers were used, but then they all got deleted or stopped being used.

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• Facebook Like Button on Individual Pages

  - by clifgray

  There have been a few questions like this asked before but not in the same way. I want to put a Facebook Like or Share or Recommend button on all of my website pages. The site is somewhat like Yelp but for different topics. I am wondering which button to put there. Does it do any good to have individual pages "liked" and does it show anywhere besides on that page? I basically just want people to be able to click a button and have the page show up on their wall and their friend's feeds and I am not sure what the best plugin for that is.

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• Share buttons vs sharer urls

  - by TeeOh

  As some people might know, adding share buttons from Facebook and Twitter can cause a page to slow down. I've seen many sites pass on the common iframe implementations that these sites offer and simply create icons that link to a sharer url for better control of page performance. http://www.facebook.com/sharer/sharer.php?u=http%3A%2F%2Fwww.cnn.com%2F&t=CNN%26s+website%27 However, I've also read that Facebook is dropping support for these links. For example, this link now redirects to the Like Button. http://www.facebook.com/facebook-widgets/share.php Here is an article noting that Facebook is deprecating/has deprecated it's share functionality and is sticking with the Like button. http://www.barbariangroup.com/posts/7544-the_facebook_share_button_has_been_deprecated_called_it I'm assuming this is the same for the sharing url. If the sharer url is no longer a reliable option, what other methods are there besides using 3rd party widgets (like Addthis)?

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• How do I use Instagram to post to my business page but not my personal page?

  - by DEdesigns57

  I tried asking this question on the Facebook forums but got no answer, maybe someone here might be able to help me with this. I have a Facebook account and within that same account is my Facebook page for my business. Problem is every time that I try to use Instagram to upload a photo it gets uploaded to my personal/primary Facebook page and not the business page which is under the same email address and password. Instagram ask for this email address and password but how can I just have Instagram upload it to my business page and not my personal page? Or at very least how can I do both?

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• Curating projects of deceased friends

  - by Ant

  A very good friend of mine, and an avid programmer, recently passed away. He left nearly 40 projects on BitBucket. Most of them are public, but a few of them are marked as private. I've decided to take on curation duties for the projects rather than leave his work to disappear. If you have been in the same situation, what did you do? Did you open-source everything? Continue development? Delete it all? I'm very interested to hear other people's experiences. There are a few reasons why some of the projects are marked as private (private projects on BitBucket are visible only to invited users and the original creator): One of them is an iOS web app that was free in the app store. I've had to remove the app from the store as I'm shutting down his web sites as a favour to his widow. However, I've already made the app public under the GPL v3 (he was a big GPL supporter). One of them contains proprietary code. It can't be open-sourced. Others are very much work-in-progress. I don't know if he intended to make them into hosted, paid services or if he wanted to give the code away under an open-source licence when they were finished. Here's a list of the private projects: Some kind of living cell simulator that uses SBML along with Runge-Kutta and Euler algorithms to do... something. There's a fair amount of code here but I don't know what it does or how far along it is. No docs. An accountacy application; it seems to have a solid DB design behind it but there's little code on top of that. A website whose purpose is to suggest good restaurants. Built on yii. Seems to have a lot of code but I'd need to set up a WAMP stack to see how far along it is. A website intended to host memorials to people who suffered from the same problem he was. Built on Joomla. I'm not sure how much of the code is just Joomla and how much is custom; again, I'd need to get Joomla running to find out. I'd just introduced him to Mercurial and BitBucket. All of the private projects are single commits of codebases he wasn't using version control with/was previously using SVN. I don't have the SVN repositories so I can't see the commit logs.

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• How can one find software development work that involves directly the final end user?

  - by RJa

  I've worked in software development for 15 years and, while there have been signficant personal achievements and a lot of experience, I've always felt detached from the man/woman-on-the-street, the every day person, how it affects their lives, in a number of ways: the technologies: embedded software, hidden away, stuff not seen by the everyday person. Or process technology supporting manufactured products the size of the systems, meaning many jobs, divided up, work is abstract, not one person can see the whole picture the organisations: large, with departments dealing with different areas, the software, the hardware, the marketing, the sales, the customer support the locations and hours: out-of-town business parks away from the rest of society, fixed locations, inflexible: 9-5 everyday This to me seems typical of the companies I worked for and see elsewhere. Granted, there are positives such as the technology itself and usually being among high calibre co-workers, but the above points frustrate me about the industry because they detach the work from its meaning. How can one: change these things in an existing job, or compensate for them? find other work that avoids these and connects with the final end user? Job designs tend to focus on the job content and technical requirements rather than how the job aims to fulfil end user needs, is meaningful.

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• How to deploy a single website to multiple physical servers.?

  - by user70122

  I want to deploy my PHP and Ajax based Dating website to multiple physical servers. Does anyone know the method. Is there possible any method to save the files and setting (and also the user input), on all of the physical server, so that the servers do the following jobs. Servers used as a network, speeding up the process giving a robust thing to the end user. Data to be stored on all the servers' hard drivers, and Every server have the internet connection from different provider, so for example a. if any of the internet providers gets down, or b. there occur any hardware or power failure, the website still runs, without a break and without any data loss. Does anyone know about some online course, or some comprehensive tutorials about this topic ?

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• Looking for open-source solutions for a knowledge sharing website

  - by Bundarr

  There is a need in my workplace to setup a knowledge sharing site, a place where users can discuss projects they are working share documentation ask questions I am looking for a open-source system that answers these needs, and that can be setup in a week, and requires only PHP and MySQL. I am a Wordpress fan and developer and could easily implement such a system in Wordpress, however this system needs to be very simple to use for the technically challenged. Without customization, Wordpress users would still need to login to the "back-end" to post. I like the Stackexchange (OSQA) format, but these do not allow for file uploading out of the box. I do not have experience with Buddy Press, would this be an alternative?

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• Facebook graph api photo upload to a fan page album

  - by kielie

  Hi guys, I have gotten the photo upload function to work with this code, <?php include_once 'facebook-php-sdk/src/facebook.php'; include_once 'config.php';//this file contains the secret key and app id etc... $facebook = new Facebook(array( 'appId' => FACEBOOK_APP_ID, 'secret' => FACEBOOK_SECRET_KEY, 'cookie' => true, 'domain' => 'your callback url goes here' )); $session = $facebook->getSession(); if (!$session) { $url = $facebook->getLoginUrl(array( 'canvas' => 1, 'fbconnect' => 0, 'req_perms'=>'user_photos,publish_stream,offline_access'//here I am requesting the required permissions, it should work with publish_stream alone, but I added the others just to be safe )); echo 'You are not logged in, please <a href="' . $facebook->getLoginUrl() . '">Login</a> to access this application'; } else{ try { $uid = $facebook->getUser(); $me = $facebook->api('/me'); $token = $session['access_token'];//here I get the token from the $session array $album_id = 'the id of the album you wish to upload to eg: 1122'; //upload your photo $file= 'test.jpg'; $args = array( 'message' => 'Photo from application', ); $args[basename($file)] = '@' . realpath($file); $ch = curl_init(); $url = 'https://graph.facebook.com/'.$album_id.'/photos?access_token='.$token; curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_HEADER, false); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, $args); $data = curl_exec($ch); //returns the id of the photo you just uploaded print_r(json_decode($data,true)); } catch(FacebookApiException $e){ echo "Error:" . print_r($e, true); } } ?> I hope this helps, a friend and I smashed our heads against a wall for quite some time to get this working! Anyways, here is my question, how can I upload a image to a fan page? I am struggling to get this working, when I upload the image all I get is the photo id but no photo in the album. So basically, when the user clicks the upload button on our application, I need it to upload the image they created to our fan page's album with them tagged on it. Anyone know how I can accomplish this?

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• MS Chart Control Scale - Line graph show 12 months

  - by Mike

  Hi, On my X Axis, I have months. The chart shows up to 11 points, i.e. Jan - Nov of the same year, but when I add 12 points (Jan - Dec), it will do an auto label thing and change the interval for every 4 months. How can I change the graph so that it shows 12 months before it does the auto labels? Here is the server control code I am currently using. <asp:CHART ID="Chart1" runat="server" BorderColor="181, 64, 1" BorderDashStyle="Solid" BorderWidth="2" Height="296px" ImageLocation="~/TempImages/ChartPic_#SEQ(300,3)" ImageType="Png" Palette="None" Width="700px" BorderlineColor=""> <legends> <asp:Legend BackColor="Transparent" Font="Trebuchet MS, 8pt, style=Bold" IsTextAutoFit="False" Name="Default" Alignment="Center" DockedToChartArea="ChartArea1" Docking="Top" IsDockedInsideChartArea="False" Title="Legend"> </asp:Legend> </legends> <series> <asp:Series BorderColor="180, 26, 59, 105" BorderWidth="2" ChartType="Line" Color="220, 65, 140, 240" MarkerSize="6" Name="Series1" ShadowColor="Black" ShadowOffset="2" XValueType="DateTime" YValueType="Double" LabelFormat="c0" LegendText="Actual" MarkerStyle="Circle"> </asp:Series> <asp:Series BorderColor="180, 26, 59, 105" BorderWidth="2" ChartType="Line" Color="220, 224, 64, 10" MarkerSize="6" Name="Series2" ShadowColor="Black" ShadowOffset="2" XValueType="DateTime" YValueType="Double" LabelFormat="c0" LegendText="Projected" MarkerStyle="Circle"> </asp:Series> <asp:Series BorderColor="180, 26, 59, 105" BorderWidth="2" ChartArea="ChartArea1" ChartType="Line" Legend="Default" Name="Series3" LabelFormat="c0" XValueType="DateTime" YValueType="Double" Color="0, 192, 192" MarkerSize="6" ShadowColor="Black" ShadowOffset="2" LegendText="Actual Credit Limit" MarkerStyle="Circle"> </asp:Series> </series> <chartareas> <asp:ChartArea BackColor="#DEEDF7" BackGradientStyle="TopBottom" BackSecondaryColor="White" BorderColor="64, 64, 64, 64" BorderDashStyle="Solid" Name="ChartArea1" ShadowColor="Transparent"> <area3dstyle inclination="40" isclustered="False" isrightangleaxes="False" lightstyle="Realistic" perspective="9" rotation="25" wallwidth="3" /> <axisy linecolor="64, 64, 64, 64" islabelautofit="False" isstartedfromzero="False"> <LabelStyle Font="Trebuchet MS, 8.25pt, style=Bold" Format="c0" /> <majorgrid linecolor="64, 64, 64, 64" /> </axisy> <axisx linecolor="64, 64, 64, 64" intervaloffsettype="Months" intervaltype="Months" islabelautofit="False" isstartedfromzero="False"> <LabelStyle Font="Trebuchet MS, 8.25pt, style=Bold" Angle="-60" Format="MMM yy" /> <majorgrid linecolor="64, 64, 64, 64" /> </axisx> </asp:ChartArea> </chartareas> </asp:CHART> Thanks.

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• Running a graph returns E_FAIL

  - by Manish

  Hi, I have been struggling for a while now to get my filter graph to run .I am trying to crop a .wmv file into smaller duration .wmv files .It looks quite a simple task I dont know why its is getting so complicated.I follow this Source- SampleGrabber-WMA sf writer. Here is my code IBaseFilter* pASFWriter; ICaptureGraphBuilder2 * pBuilder=NULL; CoCreateInstance(CLSID_CaptureGraphBuilder2,NULL,CLSCTX_INPROC_SERVER,IID_ICaptureGraphBuilder2,(LPVOID*)&pBuilder); pBuilder-SetFiltergraph(pGraphBuilder); pBuilder-SetOutputFileName(&MEDIASUBTYPE_Asf,OUTFILE,&pASFWriter,NULL); IConfigAsfWriter *pConfig=NULL; HRESULT hr80 = pASFWriter-QueryInterface(IID_IConfigAsfWriter, (void**)&pConfig); if (SUCCEEDED(hr80)) { // Configure the ASF Writer filter. pConfig-Release(); } IBaseFilter *pSource=NULL; pGraphBuilder->AddSourceFilter(FILENAME,L"Source",&pSource); IBaseFilter *pGrabberF2=NULL; ISampleGrabber *pGrabber2=NULL; CoCreateInstance(CLSID_SampleGrabber,NULL,CLSCTX_INPROC_SERVER,IID_PPV_ARGS(&pGrabberF2)); pGraphBuilder->AddFilter(pGrabberF2,L"Sample Grabber2"); AM_MEDIA_TYPE mt1; ZeroMemory(&mt1,sizeof(mt1)); mt1.majortype=MEDIATYPE_Video; mt1.subtype=MEDIASUBTYPE_RGB24; pGrabberF2->QueryInterface(IID_ISampleGrabber,(void**)(&pGrabber2)); pGrabber2->SetBufferSamples(TRUE); pGrabber2->SetOneShot(FALSE); pGrabber->SetMediaType(&mt1); pSource->EnumPins(&pEnum2); pEnum2->Next(1,&pPin2,NULL); HRESULT hr108=ConnectFilters(pGraphBuilder,pPin2,pGrabberF2);//Source to Grabber pGrabberF2->EnumPins(&pEnum3); IEnumPins *pEnum4=NULL; pASFWriter->EnumPins(&pEnum4); IPin* pPin4=NULL; while (S_OK==pEnum3->Next(1,&pPin3,NULL)&& S_OK==pEnum4->Next(1,&pPin4,NULL)){ pGraphBuilder->Connect(pPin3,pPin4);//Grabber to FileWriter } pGraphBuilder->RenderFile(FILENAME,NULL);//FILENAME=INPUTFILENAME (.wmv format) pMediaPosition->put_CurrentPosition(start); pMediaPosition->put_StopTime(stop); HRESULT test1=pMediaControl->Run(); All of it runs fine(returns S_OK) .But test1 returns E_FAIL and no file is created.Can somebody help?

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• How to recalculate all-pairs shorthest paths on-line if nodes are getting removed?

  - by Pavel Shved

  Latest news about underground bombing made me curious about the following problem. Assume we have a weighted undirected graph, nodes of which are sometimes removed. The problem is to re-calculate shortest paths between all pairs of nodes fast after such removals. With a simple modification of Floyd-Warshall algorithm we can calculate shortest paths between all pairs. These paths may be stored in a table, where shortest[i][j] contains the index of the next node on the shortest path between i and j (or NULL value if there's no path). The algorithm requires O(n³) time to build the table, and eacho query shortest(i,j) takes O(1). Unfortunately, we should re-run this algorithm after each removal. The other alternative is to run graph search on each query. This way each removal takes zero time to update an auxiliary structure (because there's none), but each query takes O(E) time. What algorithm can be used to "balance" the query and update time for all-pairs shortest-paths problem when nodes of the graph are being removed?

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• What Javascript graphing package will let me plot points against a user-selected coordinate system?

  - by wes

  My customer has some specific requirements for a graph to show in our web app. We use HighCharts elsewhere in the app for more traditional graphing, but it doesn't seem to work for this situation. Their requirements: Allow the user to select a background image, set the scale and origin of the coordinate system. We'll graph our points against the user-defined coordinates. Points can be color coded Mouse-over boxes show more detail about the points Support for zooming and panning, scaling the background appropriately Less importantly: Support for drawing vectors off the points Some of this seems basic, but looking around at different graph packages, I was unable to find any with an example of this kind of usage. I've entertained the thought of just hacking it together in canvas myself, but I've never worked with canvas before so I don't think it would be cost effective. The basics of plotting points with a scaled coordinate system against an image background wouldn't be too hard, but the mouse-over details, zooming and panning sound much more daunting to me. More info: Right now we use jQuery, HighCharts, and ExtJS for our app. We tried flot in the past but switched to HighCharts after flot didn't meet our needs.

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• Need some help understanding this problem

  - by Legend

  I was wondering if someone could help me understand this problem. I prepared a small diagram because it is much easier to explain it visually. Problem I am trying to solve: 1. Constructing the dependency graph Given the connectivity of the graph and a metric that determines how well a node depends on the other, order the dependencies. For instance, I could put in a few rules saying that node 3 depends on node 4 node 2 depends on node 3 node 3 depends on node 5 But because the final rule is not "valuable" (again based on the same metric), I will not add the rule to my system. 2. Execute the request order Once I built a dependency graph, execute the list in an order that maximizes the final connectivity. First and foremost, I am wondering if I constructed the problem correctly and if I should be aware of any corner cases. Secondly, is there a closely related algorithm that I can look at? Currently, I am thinking of something like Feedback Arc Set or the Secretary Problem but I am a little confused at the moment. Any suggestions? PS: I am a little confused about the problem myself so please don't flame on me for that. If any clarifications are needed, I will try to update the question.

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• Unable to register achievements

  - by abe

  I've been unable to register any achievements. I keep getting the following: {"error":{"message":"(#3502) Object at achievement URL is not of type game.achievement","type":"OAuthException","code":3502}} When I run my URL through the linter, I get: Open Graph Warnings That Should Be Fixed Inferred Property: The 'og:url' property should be explicitly provided, even if a value can be inferred from other tags. Inferred Property: The 'og:title' property should be explicitly provided, even if a value can be inferred from other tags. Although when I load the URL myself I clearly see those set in the meta tags. My HTML looks like: <html> <head prefix="og: http://ogp.me/ns# fb: http://ogp.me/ns/fb# game: http://ogp.me/ns/game#"> <meta property="fb:app_id" content="<MY_APP_ID>" /> <meta property="og:type" content="game.achievement" /> <meta property="og:url" content="http://<MY_DOMAIN>/ach10.html" /> <meta property="og:title" content="Title" /> <meta property="og:description" content="Description" /> <meta property="og:image" content="http://placekitten.com/g/200/300" /> </head> <body> Hmm.. </body> </html> Also interesting, is the graph API sees it as: { "url": "http://<MY_DOMAIN>/ach10.html", "type": "website", "title": "http://<MY_DOMAIN>/ach10.html", "updated_time": "2012-03-09T19:49:14+0000", "id": "<ID>" } And the scraped URL returns nothing ... anyone have any ideas? I've also tried adding the Game Achievement object in the Open Graph settings and every combination of Sandbox Mode/Social Discovery enabled and disabled.

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• How do I find all paths through a set of given nodes in a DAG?

  - by Hanno Fietz

  I have a list of items (blue nodes below) which are categorized by the users of my application. The categories themselves can be grouped and categorized themselves. The resulting structure can be represented as a Directed Acyclic Graph (DAG) where the items are sinks at the bottom of the graph's topology and the top categories are sources. Note that while some of the categories might be well defined, a lot is going to be user defined and might be very messy. Example: On that structure, I want to perform the following operations: find all items (sinks) below a particular node (all items in Europe) find all paths (if any) that pass through all of a set of n nodes (all items sent via SMTP from example.com) find all nodes that lie below all of a set of nodes (intersection: goyish brown foods) The first seems quite straightforward: start at the node, follow all possible paths to the bottom and collect the items there. However, is there a faster approach? Remembering the nodes I already passed through probably helps avoiding unnecessary repetition, but are there more optimizations? How do I go about the second one? It seems that the first step would be to determine the height of each node in the set, as to determine at which one(s) to start and then find all paths below that which include the rest of the set. But is this the best (or even a good) approach? The graph traversal algorithms listed at Wikipedia all seem to be concerned with either finding a particular node or the shortest or otherwise most effective route between two nodes. I think both is not what I want, or did I just fail to see how this applies to my problem? Where else should I read?

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• Open source libraries to design directed graphs

  - by Benjamin

  Hi all, I'm going to need to write a software that takes a list of persons and connects them together in a directed-graph-like manner. The GUI aspect of the whole project is very important. The graph must allow a lot of interaction. Such as selecting several people and hiding the others, moving them around. Additionally, the software will need to be able to provide other kind of GUI-features such as several tabs, text boxes etc. The application must be quite performant. As in, it must be able to handle hundreds if not thousands of widgets. Hence, I would like to know which open source libraries (at this point the programming language they are written in does not matter - I just want an overview of everything good that is out there) would allow me to develop such piece of software? What would you recommend? Thanks for that. Edit: Could you please also link to tutorials explaining how I could program a GUI that can interact with the generated graph? For example mouse events.

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• Increasing figure size in Matplotlib

  - by Anirudh

  I am trying to plot a graph from a distance matrix. The code words fine and gives me a image in 800 * 600 pixels. The image being too small, All the nodes are packed together. I want increase the size of the image. so I added the following line to my code - figure(num=None, figsize=(10, 10), dpi=80, facecolor='w', edgecolor='k') After this all I get is a blank 1000 * 1000 image file. My overall code - import networkx as nx import pickle import matplotlib.pyplot as plt print "Reading from pickle." p_file = open('pickles/names') Names = pickle.load(p_file) p_file.close() p_file = open('pickles/distance') Dist = pickle.load(p_file) p_file.close() G = nx.Graph() print "Inserting Nodes." for n in Names: G.add_node(n) print "Inserting Edges." for i in range(601): for j in range(601): G.add_edge(Names[i],Names[j],weight=Dist[i][j]) print "Drawing Graph." nx.draw(G) print "Saving Figure." #plt.figure(num=None, figsize=(10, 10)) plt.savefig('new.png') print "Success!"

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