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• Visual Programming paradigms

  - by Rego

  As the number of "visual" OS's such as Android, iOS and the promised Windows 8 are becoming more popular, it does not seem to me that we programmers have new ways to code using these new technologies, due to a possible lack in new visual programming languages paradigms. I've seen several discussions about incompatibilities between the current coding development environment, and the new OS approaches from Windows 8, Android and other tablets OS's. I mean, today if we have a new tablet, it's almost a requirement for coding, to have, for instance, an external keyboard (due it seems to me it's very difficult to program using the touch screen), exactly because the coding assistance is not conceived to "write" thousands of lines of code. So, how advanced should be the "new" visual programming languages paradigms? Which characteristics these new paradigms would be required?

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• More advanced 'Apple Automator' software?

  - by OrangeBox

  Is there any software similar to automator but more advanced? In our situation we have two files with the same name, one is a MOV the other XML. We want to use some of the metadata within the XML to rename both files. Then we want to re-arrange the contents of the XML file so that it is compatible with another piece of software we use (I think this is called mapping) Essentially some software that takes a bunch of variable from existing file and peforms file actions to them. I imagine this would be an easy task using applescript, but im wondering if there is a OSX application similar to Automator that can do the above? Questions are: Is there software that can do the above? Could Automator achieve this? What is the name of this process? If no such software exists, what would be the best kind of script to use? eg. Make an Apple Script, python script etc.

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• Daily tech links for .net and related technologies - May 13-16, 2010

  - by SanjeevAgarwal

  Daily tech links for .net and related technologies - May 13-16, 2010 Web Development Integrating Twitter Into An ASP.NET Website Using OAuth - Scott Mitchell T4MVC Extensions for MVC Partials - Evan Building a Data Grid in ASP.NET MVC - Ali Bastani Introducing the MVC Music Store - MVC 2 Sample Application and Tutorial - Jon Galloway Announcing the RTM of MvcExtensions - kazimanzurrashid Optimizing Your Website For Speed Web Design Validation with the jQuery UI Tabs Widget - Chris Love A Brief History...(read more)

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• scrapy cannot find div on this website [on hold]

  - by Jaspal Singh Rathour

  I am very new at this and have been trying to get my head around my first selector can somebody help? i am trying to extract data from page http://groceries.asda.com/asda-webstore/landing/home.shtml?cmpid=ahc--ghs-d1--asdacom-dsk-_-hp#/shelf/1215337195041/1/so_false all the info under div class = listing clearfix shelfListing but i cant seem to figure out how to format response.xpath(). I have managed to launch scrapy console but no matter what I type in response.xpath() i cant seem to select the right node. I know it works because when I type response.xpath('//div[@class="container"]') I get a response but don't know how to navigate to the listsing cleardix shelflisting. I am hoping that once i get this bit I can continue working my way through the spider. Thank you in advance! PS I wonder if it is not possible to scan this site - is it possible for the owners to block spiders?

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• Scrapy cannot find div on this website [on hold]

  - by Jaspal Singh Rathour

  I am very new at this and have been trying to get my head around my first selector can somebody help? i am trying to extract data from page http://groceries.asda.com/asda-webstore/landing/home.shtml?cmpid=ahc--ghs-d1--asdacom-dsk-_-hp#/shelf/1215337195041/1/so_false all the info under div class = listing clearfix shelfListing but i cant seem to figure out how to format response.xpath(). I have managed to launch scrapy console but no matter what I type in response.xpath() i cant seem to select the right node. I know it works because when I type response.xpath('//div[@class="container"]') I get a response but don't know how to navigate to the listsing cleardix shelflisting. I am hoping that once i get this bit I can continue working my way through the spider. Thank you in advance! PS I wonder if it is not possible to scan this site - is it possible for the owners to block spiders?

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• XMLPad – a new tool in my developer utility belt

  - by jamiet

  Yesterday I was on the lookout for a free tool that would help me write XPath statements. I put a shout out on Twitter and Johan Barnard replied saying : Give XMLPad a try http://www.wmhelp.com/xmlpad3.htm I’m sure there are legions of developers out there that know all about XMLPad but I had never heard about it so I suspect some of you reading haven’t either. Today I downloaded it to give it a run out and I gotta say – I love it. I only used it to do one thing –constructing an XPath expression to point to a particular Configuration definition in a .dtsx file- and it allowed me to do that with consummate ease. The feature I particularly loved was that, similar to Google Suggest, it showed me results from my expression as I typed. Here is a screenshot of my XPath expression to find (and just try saying this in a hurry) the value of a property whose DTS:Name attribute equals ‘ConfigurationString’ of a Configuration definition where the value of that Configuration definition’s property whose DTS:Name attribute equals ‘ObjectName’, equals ‘BIConfig My XPath expression: /DTS:Executable/DTS:Configuration[DTS:Property[@DTS:Name=’ObjectName’]=’BIConfig’]/DTS:Property[@DTS:Name=’ConfigurationString’] and believe me, there was no way I would have been able to come up with that without a tool to help me! So, an easy tip for you – if you need to write XPath expression download XMLPad for free from http://www.wmhelp.com/xmlpad3.htm and see what it can do for you. That’s all. Its now Friday evening and I’m shutting down and relaxing before heading to the big game at Twickenham tomorrow (yes, I have a ticket ). Have a good one! @Jamiet

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• In which cases Robolectric is a relevant solution?

  - by Francis Toth

  As you may now, Robolectric is a framework that provides stubs for Android objects, in order to make tests runnable outside the Dalvik environment. My concern is that, by doing this, one can fake a third party library, which is, I believe, not a good practice (it should be encapsulated instead). If you make assumptions about an interface you don't own, which is changed once your test has been written, you won't be always noticed about the modifications. This can lead to a misunderstanding between your implementations and the interface they depends on. In addition, Android use mostly inheritance over interfaces which limits contract testing. So here's my question: Are there situations when Robolectric is the way to go? Here are some links you can check for further information: test-doubles-with-mockito in-brief-contract-tests

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• 2D Tile Map files for Platformer, JSON or DB?

  - by Stephen Tierney

  I'm developing a 2D platformer with some uni friends. We've based it upon the XNA Platformer Starter Kit which uses .txt files to store the tile map. While this is simple it does not give us enough control and flexibility with level design. Some examples: for multiple layers of content multiple files are required, each object is fixed onto the grid, doesn't allow for rotation of objects, limited number of characters etc. So I'm doing some research into how to store the level data and map file. Reasoning for DB: From my perspective I see less redundancy of data using a database to store the tile data. Tiles in the same x,y position with the same characteristics can be reused from level to level. It seems like it would simple enough to write a method to retrieve all the tiles that are used in a particular level from the database. Reasoning for JSON: Visually editable files, changes can be tracked via SVN a lot easier. But there is repeated content. Do either have any drawbacks (load times, access times, memory etc) compared to the other? And what is commonly used in the industry? Currently the file looks like this: .................... .................... .................... .................... .................... .................... .................... .........GGG........ .........###........ .................... ....GGG.......GGG... ....###.......###... .................... .1................X. #################### 1 - Player start point, X - Level Exit, . - Empty space, # - Platform, G - Gem

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• "Please ensure you have JAVA_HOME points to JDK rather than JRE" message

  - by Alex Malex

  I have java installed aaa@ubuntu:~$ whereis java java: /usr/bin/java /usr/bin/X11/java /usr/local/java /usr/share/java aaa@ubuntu:~$ whereis javac javac: /usr/bin/javac /usr/bin/X11/javac and etc/profile JAVA_HOME=/usr/local/java/jdk1.7.0_17 PATH=$PATH:$HOME/bin:$JAVA_HOME/bin JRE_HOME=/usr/local/java/jre1.7.0_17 PATH=$PATH:$HOME/bin:$JRE_HOME/bin export JAVA_HOME export JRE_HOME export PATH However, when I run Android Studio, it says: tools.jar in not in Android Studio classpath. Please ensure you have JAVA_HOME points to JDK rather than JRE. How do I fix it? update sudo update-alternatives --get-selections | grep ^java java manual /usr/local/java/jre1.7.0_17/bin/java javac manual /usr/local/java/jdk1.7.0_17/bin/javac javaws manual /usr/local/java/jre1.7.0_17/bin/javaws java -version java version "1.7.0_17"

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• T-SQL Tuesday # 16 : This is not the aggregate you're looking for

  - by AaronBertrand

  This week, T-SQL Tuesday is being hosted by Jes Borland ( blog | twitter ), and the theme is " Aggregate Functions ." When people think of aggregates, they tend to think of MAX(), SUM() and COUNT(). And occasionally, less common functions such as AVG() and STDEV(). I thought I would write a quick post about a different type of aggregate: string concatenation. Even going back to my classic ASP days, one of the more common questions out in the community has been, "how do I turn a column into a comma-separated...(read more)

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• Daily tech links for .net and related technologies - June 8-11, 2010

  - by SanjeevAgarwal

  Daily tech links for .net and related technologies - June 8-11, 2010 Web Development ASPNET MVC: Handling Multiple Buttons on a Form with jQuery - Donn Building a MVC2 Template, Part 14, Logging Services - Eric Simple Accordion Menu With jQuery & ASP.NET - Steve Boschi Conditional Validation in MVC -Simonince Creating a RESTful Web Service Using ASP.Net MVC Part 23 – Bug Fixes and Area Support - Shoulders of Giants Web Design The Principles Of Cross-Browser CSS Coding - Louis Lazaris Transparency...(read more)

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• In-app paymnt methods

  - by user212228

  I'm interested in developing for Ubuntu (mostly phones) and I can't seem to find the guidelines on app publishing, will apps only work through the ubuntu software center, or can users download and install an app from a website like is possible with an android apk? Also, are there any rules regarding in-app purchase methods, (I hope the minimum price here isn't $2.99 in-app as well or I'm not going to even bother developing for Ubuntu and will just stick with Android) Google for example, requires that in-app purchases go through their servers so that it isn't possible to use other funding methods at least for play store published apps. My main questions here are: Would it be possible to release an app for ubuntu touch that accepted bitcoin, paypal, or other methods for in-app purchases? If not, would it be possible to release apps through a personal website or 3rd party app market that could use alternative payment methods?

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• How can I export the results of my script to file?

  - by Meepster

  I need to get some details out of hundreds of XML files that were written for reporting. The script below provides the correct results, but I want them in file, cvs, xls, or txt so I can provide a list of the database fields that are in use by these reports. $get = get-childitem D:\Data\Desktop\Projects\Reports\Test -include *.xml -recurse ForEach ($xmlfile in $get) { $Report = $xmlfile $Fields = [xml](Get-Content $Report) $Fields.reportsettings.fieldlist.field | select @{ L = 'Description'; E = {$_.desc}}, @{ L = 'Field Name'; E = {$_.criterion}}, @{ L = 'Field ID'; E = {$_.id} } } Thank you very much for your time!

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• Creating a simple RSS reader using ListView,XMLDatasource,DataPager web server controls

  - by nikolaosk

  In my last ASP.Net seminar someone noticed that we did not talk at all about the XmlDataSource,ListView,DataPager web server controls. It is rather impossible to investigate/talk about all issues regarding ASP.Net in a seminar but I promised to write a blog post. I thought that I could combine all those three web server controls to create a RSS reader. 1) Launch Visual Studio 2008/2010. Express editions will work fine. 2) Create an empty asp.net web site. Choose an appropriate name. We will not write...(read more)

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• Root and Install ADB on Your Kindle Fire with SuperOneClick

  - by Jason Fitzpatrick

  The Kindle Fire, fresh into the hands of consumers across the country, has already been rooted and accessed with ADB. Right now the hack is awesome but of limited utility–it highlights how easily the Kindle Fire can be rooted and prepared for a custom ROM but for the moment you’ll find there aren’t many custom ROMs floating around. Still, we’re excited by the news and looking forward to where, beyond the stock configuration, people take the Kindle Fire. Hit up the link below for the discussion thread on AndroidForums outlining how to root your Kindle Fire. How-To Get ADB Running AND Root with SuperOneClick [AndroidForum via PhanDroid] HTG Explains: How Hackers Take Over Web Sites with SQL Injection / DDoS Use Your Android Phone to Comparison Shop: 4 Scanner Apps Reviewed How to Run Android Apps on Your Desktop the Easy Way

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• Code from my DevConnections Talks and Workshop

  - by dwahlin

  Thanks to everyone who attended my sessions at DevConnections Las Vegas. I had a great time meeting new people, discussing business problems and solutions and interacting. Here’s the code and slides for the sessions.  For those that came to the full-day Silverlight workshop I’ve included the slides that didn’t get printed plus a ton of code to help you get started with various Silverlight topics.   Get Started Building Silverlight Applications Building Architecturally Sound Silverlight Applications Using WCF RIA Services in Silverlight Applications (will post soon) Silverlight Data Integration Options and Usage Scenarios Silverlight Workshop Code

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• Small-Scale Physics Engine

  - by user1276078

  I'm entering Android game development, and I already have a computer version of a game I want to publish. The thing is, I want to make this as good as it can be. With that said, I need a physics engine, really to only do one thing. That one thing is to make a parabolic movement of my main character as he's jumping in the air. Currently, my computer version simply makes the guy move up at a 45 degree angle, and as soon as it hits the ceiling, down at a 45 degree angle. I need a physics engine/library that would accomplish that, it has to be in java since that's my best language, it has to be 2D, and it has to be able to work on Android. Which physics engine/library could accomplish all of that?

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• Webservice Client and Server demo in PHP

  Demo of 6 completely different webservices also with SOAP

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• Carpool logical architecture

  - by enrmarc

  I'm designing a carpool system (drivers can publish their routes and passengers can subscribe to them) with WebServices(axis2) and Android clients (ksoap2). I have been having problems with the logical architecture of the system and I wondered if this architecture is fine. And another question: for that architecture (if it is ok), how would be the packages structure? I suppose something like that: (In android) package org.carpool.presentation *All the activities here (and maybe mvc pattern) (In the server) package org.carpool.services *Public interfaces (for example: register(User user), publishRoute(Route route) ) package org.carpool.domain *Pojos (for example: User.java, Route.java, etc) package org.carpool.persistence *Dao Interface and implementation (jdbc or hibernate)

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• JMonkey Engine (JME) load Blender scene with textures?

  - by leigero

  I am having the hardest time trying to accomplish the simplest task. I have created a floor and 4 walls (not that complicated) in Blender. I added a basic material and cloud texture so they have something to look at other than gray. When I import them into JMonkey they show up as solid white objects with no shading or depth. White silhouettes. I thought this may be a lighting issue, but I have ambient light added to the scene. I can remove that light or adjust its intensity and it has no affect on the scene. I exported all Blender files into OgreXML format, then converted them to .j3o format in JMonkey. I renamed the textures to match their corresponding mesh and this didn't do anything. Does anybody know how to create a flat object and put it into JMonkey with a texture? This sounds simple and there is absolutely no information on this. This should be step 1!

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• How to render RSS feed in a desktop RSS reader?

  - by Thiago Moraes

  Consider one feed like this: http://feeds.feedburner.com/codinghorror It has the entire content inside the description tag of the feed, so you don't need to access the website to read the post. Now I have the problem of creating an interface for a feed like this on a desktop client. What's the best way to render the text in a pleasant way to the user? My first thought was to parse the entire HTML as if I was a web browser, but that looks really hard to do in a satisfying way. Are there any better (faster) alternatives? Rephrasing: how a desktop rss client such as feeddamon parses the input to display it nicely? Does it have a web browser inside it?

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• the unity aspect ratio script looks good in computer but not in android phones

  - by Pooya Fayyaz

  I'm developing a game for android devices.and i have a script that solve the ratio problem but i have a problem in this code.and i dont know why.it looks perfect in computer even resize the game screen but in mobile phones have a problem.my game runs in landscape mode.this is the script : using UnityEngine; using System.Collections; using System.Collections.Generic; public class reso : MonoBehaviour { void Update() { // set the desired aspect ratio (the values in this example are // hard-coded for 16:9, but you could make them into public // variables instead so you can set them at design time) float targetaspect = 16.0f / 9.0f; // determine the game window's current aspect ratio float windowaspect = (float)Screen.width / (float)Screen.height; // current viewport height should be scaled by this amount float scaleheight = windowaspect / targetaspect; // obtain camera component so we can modify its viewport Camera camera = GetComponent<Camera>(); // if scaled height is less than current height, add letterbox if (scaleheight < 1.0f && Screen.width <= 490 ) { Rect rect = camera.rect; rect.width = 1.0f; rect.height = scaleheight; rect.x = 0; rect.y = (1.0f - scaleheight) / 2.0f; camera.rect = rect; } else // add pillarbox { float scalewidth = 1.0f / scaleheight; Rect rect = camera.rect; rect.width = scalewidth; rect.height = 1.0f; rect.x = (1.0f - scalewidth) / 2.0f; rect.y = 0; camera.rect = rect; } } } i figure that my problem occur in this part of the script: if (scaleheight < 1.0f) { Rect rect = camera.rect; rect.width = 1.0f; rect.height = scaleheight; rect.x = 0; rect.y = (1.0f - scaleheight) / 2.0f; camera.rect = rect; } and its look like this in my mobile phone in portrait: and in landscape mode:

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• How can I make my main character move in a parabolic arc when jumping?

  - by user1276078

  I'm entering Android game development, and I already have a computer version of a game I want to publish. The thing is, I want to make this as good as it can be. With that said, I need a physics engine, really to only do one thing: make a parabolic movement of my main character as he's jumping in the air. Currently, my computer version simply makes the guy move up at a 45 degree angle, and as soon as it hits the ceiling, down at a 45 degree angle. I need a physics engine/library that would accomplish that, it has to be in java since that's my best language, it has to be 2D, and it has to be able to work on Android. Which physics engine/library could accomplish all of that?

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• adding tagged / dynamic pages in sitemap

  - by sam

  ive got a blog thats been running for about a year ive made about 200 posts, and there should be about 220 pages to index (additional pages for about / contact ect). When i go to crawl the site i get 1900 pages because of all the pages that are related to tags ive used in my blogs these 70% of these pages only contain one blog post. When submitting my site map to google should i exclude all pages with /tagged/ in the url so ill only be submitting unqiue pages, or should i submit the full site map ?

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• How to properly remove URL's from Google's index?

  - by ElHaix

  On some of our sites, we now have several thousand pages that dilute our website's keyword density. The website is an MVC site with SEO routing. If I submit a new sitemap with say only the 2000 or so pages that we want indexed, even though navigating to the diluting pages still works, will Google re-index the site with only those 2000 pages, dropping the superfluous ones? For example, I want to keep roughly 2000 of the following: www.mysite.com/some-search-term-1/some-good-keywords www.mysite.com/some-search-term-2/some-more-good-keywords And remove several thousand of the following that have already been indexed. www.mysite.com/some-search-term-xx/some-poor-keywords www.mysite.com/some-search-term-xx/some-poor-more-keywords These pages are not actually "removed" as navigating to these URL's still renders a page. Even though there are potentially hundreds of thousands of pages, I only want say 2000 to be re-indexed and retained. The others removed (without having to do these manually). Thanks.

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