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  • Algorithm for finding the best routes for food distribution in game

    - by Tautrimas
    Hello, I'm designing a city building game and got into a problem. Imagine Sierra's Caesar III game mechanics: you have many city districts with one market each. There are several granaries over the distance connected with a directed weighted graph. The difference: people (here cars) are units that form traffic jams (here goes the graph weights). Note: in Ceasar game series, people harvested food and stockpiled it in several big granaries, whereas many markets (small shops) took food from the granaries and delivered it to the citizens. The task: tell each district where they should be getting their food from while taking least time and minimizing congestions on the city's roads. Map example Sample diagram Suppose that yellow districts need 7, 7 and 4 apples accordingly. Bluish granaries have 7 and 11 apples accordingly. Suppose edges weights to be proportional to their length. Then, the solution should be something like the gray numbers indicated on the edges. Eg, first district gets 4 apples from the 1st and 3 apples from the 2nd granary, while the last district gets 4 apples from only the 2nd granary. Here, vertical roads are first occupied to the max, and then the remaining workers are sent to the diagonal paths. Question What practical and very fast algorithm should I use? I was looking at some papers (Congestion Games: Optimization in Competition etc.) describing congestion games, but could not get the big picture. Any help is very appreciated! P. S. I can post very little links and no images because of new user restriction.

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  • Is it Pythonic to have a class keep track of its instances?

    - by Lightbreeze
    Take the following code snippet class Missile: instances = [] def __init__(self): Missile.instances.append(self) Now take the code: class Hero(): ... def fire(self): Missile() When the hero fires, a missile needs to be created and appended to the main list. Thus the hero object needs to reference the list when it fires. Here are a few solutions, although I'm sure there are others: Make the list a global, Use a class variable (as above), or Have the hero object hold a reference to the list. I didn't post this on gamedev because my question is actually more general: Is the previous code considered okay? Given a situation like this, is there a more Pythonic solution?

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  • Image Gallery with JQuery Lightbox

    - by Michael
    Hi there, I've used the JQuery lightbox on a couple of websites, by having a gallery of thumbnails and the thumbnails as links to the bigger photos, such as: <a href="Images/Gallery/1.jpg" class="lightbox"> <img src="Images/Gallery/Thumbnails/1T.jpg" width="136" height="97" /> </a> My question is, using lightbox - can I make it so that I have a thumbnail image that when clicked takes you to a folder with a few pictures to cycle through, rather than just linking to one photo like in the example above? I've tried with one link like above and in the Gallery folder having more than one image, but I don't get any navigation buttons, just the one image that is linked to.

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  • How should a QA Environment be setup?

    - by onesith
    I am currently at a loss. We are moving from Dev-owned testing environment to a QA-owned one. I have worked in a QA-owned testing environment before. But I have never set one up from scratch. I understand that it should mirror Production as much as possible. But how? How have you setup your QA Environment?

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  • Choosing a CMS for an artist's site?

    - by shoosh
    I'm looking for a simple CMS for a site I'm building for my girlfriend. The requirements are very minimal Show images one by one, possibly with a line of text for each Show an aggregate gallery of say 4x4 images. Possibly have several different such galleries Customizable look so i could fit it to her mockup Any suggestions come to mind? Can wordpress do this?

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  • UK Postcode search

    - by Imran
    I want to build a website where you can search by entering the postcode (UK). I know that RoyalMail owns the Database to do this (it's only very expensive, $100K). What are my options?

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  • Web-To-Print - What technology should I explore? Web-Content -> drag & drop to Templates -> PDF

    - by hamlin11
    I'm discussing some software design issues with a potential client and the idea of Web-to-Print technology has come up. We need users to be able to drag images from an image library to various regions defined by a template. Example: Images may go in box A, B, or C and text may go in boxes D or E. These templates would be setup Boxes A through E would be defined inside a template by administrators using some sort of editor. These templates would serve as a mapping from web-content to a PDF. Once users drag images and insert text in the appropriate regions of the template, the result will be converted into a PDF. Is this feasible these days with jquery & asp.net? That would be nice. If not, what would be the ideal solution?

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  • Jasper report always showing no content, why?

    - by spderosso
    Hi, I have the following code: InputStream reportFile = MyPage.this.getClass().getResourceAsStream("test.jrxml"); HashMap<String, String> parameters = new HashMap<String, String>(); parameters.put("StringParameterName", "show me"); try { JasperReport report = JasperCompileManager.compileReport(reportFile); JasperPrint print = JasperFillManager.fillReport(report, parameters); return JasperExportManager.exportReportToPdf(print); } catch (JRException e) { // TODO Auto-generated catch block e.printStackTrace(); return null; } And the test.jrxml looks like this (I generated part of it with the iReport, the only thing I did was to remove the language="groovy" attribute): <?xml version="1.0" encoding="UTF-8"?> <jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="test" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20"> <property name="ireport.zoom" value="1.0"/> <property name="ireport.x" value="0"/> <property name="ireport.y" value="0"/> <parameter name="StringParameterName" isForPrompting="false" class="java.lang.String"/> <background> <band splitType="Stretch"/> </background> <title> <band height="20"> <staticText> <reportElement x="180" y="0" width="200" height="20"/> <text><![CDATA[Hello World!]]></text> </staticText> </band> </title> <pageHeader> <band height="35" splitType="Stretch"/> </pageHeader> <columnHeader> <band height="61" splitType="Stretch"/> </columnHeader> <detail> <band height="125" splitType="Stretch"> <textField> <reportElement x="243" y="77" width="100" height="20"/> <textElement/> <textFieldExpression class="java.lang.String"><![CDATA[$P{StringParameterName}]]></textFieldExpression> </textField> </band> </detail> <columnFooter> <band height="45" splitType="Stretch"/> </columnFooter> <pageFooter> <band height="54" splitType="Stretch"/> </pageFooter> <summary> <band height="42" splitType="Stretch"/> </summary> </jasperReport> As a result I always get a blank pdf file. What could be the reason?

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  • Create method to handle multiple types of controls

    - by Praesagus
    I am trying to create a method that accepts multiple types of controls - in this case Labels and Panels. The conversion does not work because IConvertible doesn't convert these Types. Any help would be so appreciated. Thanks in advance public void LocationsLink<C>(C control) { if (control != null) { WebControl ctl = (WebControl)Convert.ChangeType(control, typeof(WebControl)); Literal txt = new Literal(); HyperLink lnk = new HyperLink(); txt.Text = "If you prefer a map to the nearest facility please "; lnk.Text = "click here"; lnk.NavigateUrl = "/content/Locations.aspx"; ctl.Controls.Add(txt); ctl.Controls.Add(lnk); } }

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  • Drupal Module Themes - Default CSS?

    - by derekerdmann
    There's tons of documentation out there on how to override the appearance of Drupal modules, but I keep finding the docs for writing the original theme to be a little lacking. On this note, how can I tell Drupal to use a specific CSS file for my custom module's block output?

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  • natural language processing internships

    - by user552127
    Hi All, Pls someone guide me in finding paid Grad internships in Natural Language Processing over the summer. I am really interested in NLP/ML and have taken up the excellent course offered at my school in Fall. I would be glad to work for passionate startups that do actual NLP tasks such as semantic extraction (and not just information retrieval) etc. I have worked with Java and teaching myself Python in all NLP tasks. Thanks, Sanjay

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  • Searching for a good PHP based Web Counter

    - by hkda150
    hi, I am running a php based web application and within that application I am using bbclone to count visitors and site activity. Unfortunately it doesn't work that nice as expected because bbclone counts a lot of robots and therefor my statistic is not that accurate as it should be. So do you know any good php based web application counter? It would be nice to have the following overviews in it: - user agents - timeline Thanks a lot.

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  • What process does professional website building follow?

    - by Sivvy
    I've searched for a while, but I can't find anything related on Google or here. Me and some friends were debating starting a company, so I figure it might be good to do a quick pilot project to see how well we can work together. We have a designer who can do HTML, CSS and Flash, enjoys doing art, but doesn't like to do HTML and CSS... And 2 programmers that are willing to do anything. My question is, from an experienced site builder's perspective, what steps do we do - in chronological order - to properly handle a website? Does the designer design the look and feel of the site, then the programmers fill in the gaps with functionality? Or do the programmers create a "mock-up" of the site with most of the functionality, then the designer spices it up? Or is it more of a back-and-forth process? I just want to know how a professional normally handles it.

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  • Disappearing IE6 elements.

    - by Stefan Kendall
    I don't know what could be causing this issue, but for some reason, elements on my page (list navigation items, specifically), are disappearing in IE6. That is, from IE developer toolbar, I can see that the elements are there, and the DOM/css is correct, but the elements just aren't visible. The odd thing is that if you set or toggle ANY css element on the list items with the IE6 toolbar, the elements appear. I also have a hover() jQuery action set on the list navigation items, and the event fires as if the elements were visible and working correctly. What could possibly be going wrong here? I initially thought z-index could be an issue, but changing ANY attribute or css value (not necessarily z-index), causes the element to render. I should note, however, that doing this programmatically does not cause the elements to display properly, even if triggered seconds after the page load.

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  • Autocomplete Error Question - Ruby on Rails

    - by bgadoci
    I have built a very simple blog application using Ruby on Rails. New to both Ruby and Rails so excuse the stupid questions. I currently have two tables that relate to this question. I have a Post table and a Tag table. Basically I set it up such that Post has_many :tags and Tag belongs_to :post. I am using AJAX to process and display the tags in the show view of the post. I installed the auto_complete plugin and I am getting an error when I enter the letters in the text_field_with_auto_complete for tag creation. My suspicion is this is because the form is a remote_form_for or something I am doing wrong in the routes.rb. Here is the error and code: Error Processing PostsController#show (for 127.0.0.1 at 2010-04-13 23:25:46) [GET] Parameters: {"tag"=>{"tag_name"=>"f"}, "id"=>"auto_complete_for_tag_tag_name"} Post Load (0.1ms) SELECT * FROM "posts" WHERE ("posts"."id" = 0) ActiveRecord::RecordNotFound (Couldn't find Post with ID=auto_complete_for_tag_tag_name): app/controllers/posts_controller.rb:22:in `show' Rendered rescues/_trace (26.0ms) Rendered rescues/_request_and_response (0.2ms) Rendering rescues/layout (not_found) remote_form_for located in /views/posts/show.html.erb <% remote_form_for [@post, Tag.new] do |f| %> <p> <%= f.label :tag_name, "Tag" %><br/> <%= text_field_with_auto_complete :tag, :tag_name, {}, {:method => :get} %> </p> <p><%= f.submit "Add Comment" %></p> <% end %> tags_controller.rb (I'll spare you all the actions but added the following here) auto_complete_for :tag, :tag_name routes.rb map.resources :posts, :has_many => :comments map.resources :posts, :has_many => :tags map.resources :tags, :collection => {:auto_complete_for_tag_tag_name => :get }

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  • How to make an image randomizer from gallery directory?

    - by zebraman
    Hello, I would like to make a image randomizer/slider that randomly displays an image from a designated gallery and has controls to view the next/previous image. I have seen this done where images must be coded into arrays, but I would like to be able to just drop images into a /img/gallery directory and have the randomizer/slider pull random images from that directory. Could anyone offer some guidance on how to do this, possibly using jQuery, or refer me to a tutorial that does something like this?

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  • Invalid Viewstate

    - by murak
    I always got this error guys on my site.Anybody got a solution. Stacktrace at System.Web.UI.Page.DecryptStringWithIV(String s, IVType ivType) at System.Web.UI.Page.DecryptString(String s) at System.Web.Handlers.ScriptResourceHandler.DecryptParameter(NameValueCollection queryString) at System.Web.Handlers.ScriptResourceHandler.ProcessRequestInternal(HttpResponse response, NameValueCollection queryString, VirtualFileReader fileReader) at System.Web.Handlers.ScriptResourceHandler.ProcessRequest(HttpContext context) at System.Web.Handlers.ScriptResourceHandler.System.Web.IHttpHandler.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) Query String d=J_c3w3Q59U-PnoRlWBPOJMVgHe_9Ile9wANEXiRFLzG8mequestManager._initialize('ctl00%24ScriptManager1' I noticed that there are strings that got appended on the last part of ScriptResource.axd which are not part of the querystring(equestManager._initialize('ctl00%24ScriptManager1').I don't know how this string ends up here.I am using MS ajax, webforms and IIS7 on a shared hosting plan.

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