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• Best "Loading" feedback for ASP.Net?

  - by IP

  So, we have an ASP.Net application - fairly standard - and in there are lots of updatepanels, and postbacks. On some pages we have <ajax:UpdatePanelAnimationExtender ID="ae" runat="server" TargetControlID="updatePanel" BehaviorID="UpdateAnimation"> <Animations> <OnUpdating> <FadeOut Duration="0.1" minimumOpacity=".3" /> </OnUpdating> <OnUpdated> <FadeIn minimumOpacity=".5" Duration="0" /> </OnUpdated> </Animations> </ajax:UpdatePanelAnimationExtender> Which basically whites out the page when a postback is going on (but this clashes with modal dialog grey backgrounds). In some cases we have a progressupdate control which just has a spinny icon in the middle of the page. But none of them seem particularly nice and all a bit clunky. They also require a lot of code in various places around the app. What methods do other people use and find effective?

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• Opencv video frame not showing Sobel output

  - by user1016950

  This is a continuation question from Opencv video frame giving me an error I think I closed it off, Im new to Stackoverflow. I have code below that Im trying to see its Sobel edge image. However the program runs but the output is just a grey screen where if I mouseover the cursor disappears. Does anyone see the error? or is it a misunderstanding about the data structures Im using IplImage *frame, *frame_copy = 0; // capture frames from video CvCapture *capture = cvCaptureFromFile( "lightinbox1.avi"); //Allows Access to video propertys cvQueryFrame(capture); //Get the number of frames int nframe=(int) cvGetCaptureProperty(capture,CV_CAP_PROP_FRAME_COUNT); //Name window cvNamedWindow( "video:", 1 ); //start loop for(int i=0;i<nframe;i++){ //prepare capture frame extraction cvGrabFrame(capture); cout<<"We are on frame "<<i<<"\n"; //Get this frame frame = cvRetrieveFrame( capture ); con2txt(frame); frame_copy = cvCreateImage(cvSize(frame->width,frame->height),IPL_DEPTH_8U,frame->nChannels ); //show and destroy frame cvCvtColor( frame,frame,CV_RGB2GRAY); //Create Sobel output frame_copy1 = cvCreateImage(cvSize(frame->width,frame->height),IPL_DEPTH_16S,1 ); cvSobel(frame_copy,frame_copy1,2,2,3); cvShowImage("video:",frame_copy1); cvWaitKey(33);} cvReleaseCapture(&capture);

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• Implementations details of drag and drop of file path in cocoa.

  - by foo

  Hi, I'm trying to get a part of my window to react to drag and drop. In this case to copy the file path to the file being dropped on the view. I have looked over some documentation but I still have some problems to see exactly where I should implement my methods for drag and drop. I have seen some examples but almost all of them assumes that I want to drop an image on the view. I'm pretty new to cocoa and Xcode so, I have some problems with seeing the exact relation between interface builder and the generated code. I have created a subclass to NSView, called drop zone like this: #import <Cocoa/Cocoa.h> @interface dropZone : NSView { } @end I then use an NSRect to color it grey like this: #import "dropZone.h" @implementation dropZone - (void)drawRect:(NSRect)rect { NSRect bounds = [self bounds]; [[NSColor grayColor] set]; [NSBezierPath fillRect:bounds]; } @end I then drag this class to my window in interface builder. But I will need to implement the registerForDraggingTypes method, but where? I have also seen a convenience method in the Apple docs for file paths like this: dragFile:fromRect:slideBack:event: that might work.

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• Retain numerical precision in an R data frame?

  - by David

  When I create a dataframe from numeric vectors, R seems to truncate the value below the precision that I require in my analysis: data.frame(x=0.99999996) returns 1 (see update 1) I am stuck when fitting spline(x,y) and two of the x values are set to 1 due to rounding while y changes. I could hack around this but I would prefer to use a standard solution if available. example Here is an example data set d <- data.frame(x = c(0.668732936336141, 0.95351462456867, 0.994620622127435, 0.999602102672081, 0.999987126195509, 0.999999955814133, 0.999999999999966), y = c(38.3026509783688, 11.5895099585560, 10.0443344234229, 9.86152339768516, 9.84461434575695, 9.81648333804257, 9.83306725758297)) The following solution works, but I would prefer something that is less subjective: plot(d$x, d$y, ylim=c(0,50)) lines(spline(d$x, d$y),col='grey') #bad fit lines(spline(d[-c(4:6),]$x, d[-c(4:6),]$y),col='red') #reasonable fit Update 1 Since posting this question, I realize that this will return 1 even though the data frame still contains the original value, e.g. > dput(data.frame(x=0.99999999996)) returns structure(list(x = 0.99999999996), .Names = "x", row.names = c(NA, -1L), class = "data.frame") Update 2 After using dput to post this example data set, and some pointers from Dirk, I can see that the problem is not in the truncation of the x values but the limits of the numerical errors in the model that I have used to calculate y. This justifies dropping a few of the equivalent data points (as in the example red line).

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• MySQL Join Question

  - by rbaker86

  Hi i'm struggling to write a particular MySQL Join Query. I have a table containing product data, each product can belong to multiple categories. This m:m relationship is satisfied using a link table. For this particular query I wish to retrieve all products belonging to a given category, but with each product record, I also want to return the other categories that product belongs to. Ideally I would like to achieve this using an Inner Join on the categories table, rather than performing an additional query for each product record, which would be quite inefficient. My simplifed schema is designed roughly as follows: products table: product_id, name, title, description, is_active, date_added, publish_date, etc.... categories table: category_id, name, title, description, etc... product_category table: product_id, category_id I have written the following query, which allows me to retrieve all the products belonging to the specified category_id. However, i'm really struggling to work out how to retrieve the other categories a product belongs to. SELECT p.product_id, p.name, p.title, p.description FROM prod_products AS p LEFT JOIN prod_product_category AS pc ON pc.product_id = p.product_id WHERE pc.category_id = $category_id AND UNIX_TIMESTAMP(p.publish_date) < UNIX_TIMESTAMP() AND p.is_active = 1 ORDER BY p.name ASC I'd be happy just retrieving the category id's releated to each returned product row, as I will have all category data stored in an object, and my application code can take care of the rest. Many thanks, Richard

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• Experiences wanted: producing a jar artifact in IntelliJ

  - by skiaddict1

  Developing with IntelliJ 9.0.2 Community Edition, on the Mac. This is a follow-up to this post about including jar files in an artifact, which has not received any replies. I'm hoping that the reason is that somehow, in creating my artifact (or setting my project settings), I unwittingly did something which people don't tend to do, and which is causing my problem, and that by asking people here to share how they create jar artifacts and set up projects, I will discover what it is. To recap: I have a Java project which depends on two library files. I need to package up the entire thing, with the jars inlined (such that on doing jar -tfv <filename> I see ALL the classes listed, including the ones in the two libraries), into a single jar file. I can make an artifact, I can add the library files to the Output Layout pane, but I CANNOT, no matter what I do, I cannot get the "Inline Artifact" item in the context menu to be selectable (i.e. non-grey) when I right-click on one or other library file. The thing is, making a jar which contains library files as well as the project code is NOT an unusual situation in the Java world! So I figure there are lots of IntelliJ folks out there who have done what I need to do. And I would really like to hear from you folks. What project settings do you use? (be specific, please :-) And exactly how do you set up your jar artifacts? (again, as many specific details as possible, please :-) Clearly, I'd be particularly interested to hear from folks with similar setups to mine (above) who are successfully doing what I need to do. Grateful thanks in advance, folks.

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• PHP array minor problem

  - by Sennheiser

  I'm really not sure how to explain this. It's so simple I can't fathom why it's not working. I have a loop. It puts a bunch of strings into an array. If I fill a single variable with any given string, it will output it perfectly. But filling an array with the strings will make it give me the dreaded: Array Array Array Array Array Array Array Array Note: my strings are not all 'Array'. The way I loop is: while(...) { $arr[] = $resultFromLoop; } Here is my var_dump. array(1) { ["tagName"]=> string(5) "magic" } array(1) { ["tagName"]=> string(4) "nunu" } array(1) { ["tagName"]=> string(5) "books" } array(1) { ["tagName"]=> string(0) "" } array(1) { ["tagName"]=> string(3) "zzz" } array(1) { ["tagName"]=> string(4) "grey" } array(1) { ["tagName"]=> string(3) "new" } array(1) { ["tagName"]=> string(6) "flight" }

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• List of values as keys for a Map

  - by thr

  I have lists of variable length where each item can be one of four unique, that I need to use as keys for another object in a map. Assume that each value can be either 0, 1, 2 or 3 (it's not integer in my real code, but a lot easier to explain this way) so a few examples of key lists could be: [1, 0, 2, 3] [3, 2, 1] [1, 0, 0, 1, 1, 3] [2, 3, 1, 1, 2] [1, 2] So, to re-iterate: each item in the list can be either 0, 1, 2 or 3 and there can be any number of items in a list. My first approach was to try to hash the contents of the array, using the built in GetHashCode() in .NET to combine the hash of each element. But since this would return an int I would have to deal with collisions manually (two equal int values are identical to a Dictionary). So my second approach was to use a quad tree, breaking down each item in the list into a Node that has four pointers (one for each possible value) to the next four possible values (with the root node representing [], an empty list), inserting [1, 0, 2] => Foo, [1, 3] => Bar and [1, 0] => Baz into this tree would look like this: Grey nodes nodes being unused pointers/nodes. Though I worry about the performance of this setup, but there will be no need to deal with hash collisions and the tree won't become to deep (there will mostly be lists with 2-6 items stored, rarely over 6). Is there some other magic way to store items with lists of values as keys that I have missed?

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• mcsCustomscrollbar append new content not working

  - by Dariel Pratama

  i have this script in my website. $(document).ready(function(){ var comment = $('textarea[name=comment_text]').val(); var vid = $('input[name=video_id]').val(); $('#add_comment').on('click', function(){ $.post('<?php echo site_url('comment/addcomments'); ?>', $('#comment-form').serialize(), function(data){ data = JSON.parse(data); if(data.userdata){ var date = new Date(data.userdata.comment_create_time * 1000); var picture = data.userdata.user_image.length > 0 ? 'fileupload/'+data.userdata.user_image:'images/no_pic.gif'; var newComment = '<div class="row">\ <div class="col-md-4">\ <img src="<?php echo base_url(); ?>'+picture+'" class="profile-pic margin-top-15" />\ </div>\ <div class="col-md-8 no-pade">\ <p id="comment-user" class="margin-top-15">'+data.userdata.user_firstname+' '+data.userdata.user_lastname+'</p>\ <p id="comment-time">'+date.getTime()+'</p>\ </div>\ <div class="clearfix"></div>\ <div class="col-md-12 margin-top-15" id="comment-text">'+data.userdata.comment_text +'</div>\ <div class="col-md-12">\ <div class="hr-grey margin-top-15"></div>\ </div>\ </div>'; $('#comment-scroll').append($(newComment)); $('#comment').modal('hide'); } }); }); }); what i expect when a comment added to the DB and the PHP page give JSON response, the new comment will be added to the last line of $('#comment-scroll'). #comment-scroll is also have custom scroll bar by mcsCustomscrollbar. the above script also hiding the modal dialog when comment saved and it's working fine which is mean data.userdata is not empty, but why the append() isnt?

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• Changing Value of Array Pointer When Passed to a Function

  - by ZAX

  I have a function which receives both the array, and a specific instance of the array. I try to change the specific instance of the array by accessing one of its members "color", but it does not actually change it, as can be seen by debugging (checking the value of color after function runs in the main program). I am hoping someone can help me to access this member and change it. Essentially I need the instance of the array I'm specifying to be passed by reference if nothing else, but I'm hoping there is an easier way to accomplish what I'm trying to do. Here's the structures: typedef struct adjEdge{ int vertex; struct adjEdge *next; } adjEdge; typedef struct vertex{ int sink; int source; int color; //0 will be white, 1 will be grey, 5 will be black int number; adjEdge *nextVertex; } vertex; And here is the function: void walk(vertex *vertexArray, vertex v, int source, maxPairing *head) { int i; adjEdge *traverse; int moveVertex; int sink; traverse = vertexArray[v.number-1].nextVertex; if(v.color != 5 && v.sink == 5) { sink = v.number; v.color = 5; addMaxPair(head, source, sink); } else { walk(vertexArray, vertexArray[traverse->vertex-1], source, head); } } In particular, v.color needs to be changed to a 5, that way later after recursion the if condition blocks it.

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• iiR Hospital Digital 2011: Tras la historia digital ¿qué?

  - by Eloy M. Rodríguez

  Como el acceso a la documentación está restringido, sólo voy a comentar por encima algunos temas o planteamientos que me han llamado la atención del VI Foro Hospital Digital 2011, organizado por iiR. Y comienzo destacando la buena moderación de Maribel Grau del Hospital Clínic de Barcelona que estuvo sobria, eficaz y motivadora del debate. Me impresionó el proyecto Hospital Líquido del Hospital San Joan de Deu de Barcelona por el compromiso corporativo con una medicina colaborativa involucrando a los pacientes y a los profesionales, con unas iniciativas de eSalud y Salud2.0 avanzadas y apoyadas en un buen soporte legal, tecnológico, de los profesionales y con procesos bien definidos. Es un tema corporativo y no una prueba, como bien explicó Jorge Juan Fernández y detalló después Júlia Cutillas, cuyo rol, por cierto, es de Community Manager. En el debate salió el tema del retorno de la inversión y ese es un tema inmaduro, ya que es difícil de encontrar métricas adecuadas, pero no dudan de su continuidad ya que forma parte de una estrategia corporativa, en la que siempre hay elementos que forman parte de los costes generales y que se consideran necesarios para prestar el nivel de servicio que se desea ofrecer. Cecilia Pérez desde su posición como Jefe de Implantación de HCE en el Hospital de Móstoles hizo énfasis en la importancia de la gestión efectiva del cambio cuando se implanta un sistema de historia clínica electrónica que pasa por una inicial negación de los usarios al cambio, que luego presentan una resistencia al prinicipio para luego empezar a explorar posibilidades y llegar a un compromiso con el cambio. Santiago Borrás, Jefe de Sistemas del Hospital del Henares, partió de un hospital digital, pero eso no es más que el comienzo. Tras tres años la frustración de los profesionales es no perderse entre demasiada información. La etapa necesaria tras la digitalición es la generación y compartición del cononocimiento. Cristina Ibarrola, Directora de Atención Primaria del SNS-O comentó la experiencia de las interconsultas primaria-especializada que reducen la carga asistencial en primaria al aumentar la resolución. Hay una reserva de tiempos específicos en las agendas de los profesionales de ambos lados para garantizar una respuesta en un máximo de 48 horas. Eso ha llevado a una flexibiliazación de la agenda de los médicos de primaria que tienen un 25% más de tiempo para las consultas presenciales. Parece que aquí la opción tomada es dar más tiempo por paciente en vez de más pacientes, supongo que en parte porque la presión asistencial en Navarra tengo entendido que no es tan fuerte como en otras zonas. Alejandra Cubero comentó la experiencia de identificación de pacientes y de inteoperabilidad en Hospitales de Madrid. Ana Rosa Pulido presentó los logros del SES y su proyecto actual de Imagen Médica No Radiológica. Richard Bernat explicó la experiencia de HCE de Salud de la Mujer Dexeus, indicando que si bien no hay métricas del retorno de la inversión, sí hay una percepción del valor por las diferentes direcciones. Arturo Quesada glosó la experiencia de Jimena en el Hospital de Ávila, Joan Chafer desgranó el arduo proceso de introducción de sucesivas soluciones digitales en el Hospital Clínico San Carlos de Madrid comenzando por “Hogar Digital”, todo ello con financiación externa o recursos propios y cerró el turno de intervenciones no comerciales Pedro A. Bonal que presentó el valor de los eDocs dentro del Complejo (aplicado en sus dos acepciones de conjunto y complicado) Hospitalario de Toledo como tránsito a la HCE plenamente digital. Tweet

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• Outlook 2010 – My Top 9 features

  - by Daniel Moth

  Office 2010 has reached RTM. Here are my favorite Outlook features. Speed. It is faster than previous versions and hangs much less… Ignore Conversation (Ctrl+Del). Not interested in a conversation? Click this button on the new ribbon and you'll never receive another message on that thread (they all go to your Deleted folder). Calendar Preview. When receiving a Meeting Request, before deciding to accept or not you get to see a preview of your calendar for that day and where the new meeting would fit in. See full description on outlook team blog post. Quick Steps. See full description on outlook team blog post. I have created my own quick steps for filing conversations to folders, various pre-populated reply templates, creating calendar invites and creating TODOs from received emails. Search Interface. Many of us knew the magic keywords for making smart searches (e.g. from:Name), but it is great to learn many more through the search tools contextual ribbon tab. Next 7 days. Out of the many enhancements to the Calendar view, my favorite is to be able with  single click to view the next 7 days – that is now my default view. MailTips. See full description on outlook team blog post. The ones I particularly like are when composing a mail to someone that has their Out Of Office reply set, you get to read it before sending the mail (and hence can decide to postpone sending). when composing a mail to a distribution list, a message informs you of the number of recipients. Hopefully, senders will use that as a clue for narrowing down the recipient list or at least verifying that their mail should indeed be sent to so many people. "You are not responding to the latest message in this conversation. Click here to open it.". When composing a reply to a conversation and you have not picked the last message to reply to (don't you hate it when people split threads like that?), this is the inline message you see (under the MailTips area) and if you click on the message it opens the last mail in the conversation so you can reply to that. Rich "Conversation Settings" and in particular "Show Messages from Other Folders". For example, you can see in your inbox not only the message you received but also the reply you sent (it gets pulled in from the Sent folder). Another example: a conversation has been taking place on a distribution list (so your rules filed it to a folder) and they add you on the TO or CC line, so it appears in a different folder; regardless of which folder you open, you are able to see the entire conversation. Note that messages from other folders than the one you are browsing, appear in grey text so you can easily spot them. Reading them in one folder, obviously marks them as read in the other folder… If you haven't yet, when are you making the move to Outlook 2010? Comments about this post welcome at the original blog.

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• Today's Links (6/29/2011)

  - by Bob Rhubart

  Event-Driven SOA: Events meet Services | Guido Schmutz Oracle ACE Director Guido Schmutz shows you how to achieve extreme loose coupling within a Service-Oriented Architecture by using event-driven interactions. Misconceptions About Software Architecture | Sanjeev Kumar A concise, to-the-point, and informative article by Sanjeev Kumar. Good Leaders Acknowledge What Can't Be Done - Jeffrey Pfeffer - Harvard Business Review "None of us likes to admit to bad decisions," says Jeffrey Pfeffer. "But imagine how much harder that is for someone who has been chosen to lead a large organization precisely because he or she is thought to have the power to see the future more clearly and chart a wise course." Suboptimal Thinking within Enterprise Architecture | James McGovern McGovern says: "We need to remember that enterprises live and thrive beyond just the current person at the helm." Boundaryless Information Flow | Richard Veryard "If all the boundaries are removed or porous, then the (extended) enterprise or ecosystem becomes like a giant sponge, in which all information permeates the whole," Veryard says. "Some people may think that's a good idea, but it's not what I'd call loose coupling." Coming to a City Near You: Oracle Business Analytics Summits | Rob Reynolds This series of events includes a Technology and Architecture track. New Date for Implementation of Sun Hands-On Course Requirement (Oracle Certification) As announced on the Oracle Certification website, Java Architect, Java Developer, Solaris System Administrator and Solaris Security Administrator certification tracks will include a new mandatory course attendance requirement. VirtualBox 4.0.10 is now available for download | Bob Netherton Netherton shares information on the new release. Updated Technical Best Practices whitepaper | Anthony Shorten The Technical Best Practices whitepaper has been updated with the latest advice. "New advice includes new installation advice, advanced settings, new security settings and advice for both Oracle WebLogic and IBM WebSphere installations," says Shorten. Kscope 11 ADF, AIA and Business Rules | Peter Paul van de Beek Whitehorses Solution Architect Peter Paul van de Beek shares his impressions of KScope11 presentations by Markus Eisele, Sten Vesterli, and Edwin Biemond. Amazon AWS for the learning experience | Andrej Koelewijn "Using AWS changes your expectations how your internal data center should operate," says Koelewijn. BPMN is dead, long live BPEL! (SOA Partner Community Blog) Jürgen Kress shares information -- including a long list of speakers -- for the SOA & BPM Integration Days 2011 conference, October 12th & 13th 2011 in Düsseldorf. InfoQ: HTML5 and the Dawn of Rich Mobile Web Applications James Pearce introduces cross-platform web apps development using HTML5 and web frameworks, such as jQTouch, jQuery Mobile, Sencha Touch, PhoneGap, outlining what makes a good framework. InfoQ: Interview and Book Excerpt: CMMI for Development "Frameworks like TOGAF are used to define an architecture that aligns IT assets and resources to support key business needs and processes of key stakeholders," says SEI's Mike Konrad. "But the individual application systems, capabilities, services, networks, and other IT assets and infrastructure still need to be acquired, developed, or sustained." InfoQ: Architecting a Cloud-Scale Identity Fabric | Eric Olden "The most cited reason for not moving to the cloud is concern about security," says Olden. "In particular, managing user identity and access in the cloud is a tough problem to solve and a big security concern for organizations."

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• Kanban Tools Review

  - by GeekAgilistMercenary

  The first two sessions on Sunday were Collaboration and why it is so hard and the following, which was a perfect following session was on Kanban.  While in that second session two online Saas Style Tools were mentioned; AgileZen and Leankit.  I decided right then and there that I would throw together some first impressions and setup some sample projects.  I did this by setting up an account and creating the projects. Agile Zen Account Creation Setting up the initial account required an e-mail verification, which is understandable.  Within a few seconds it was mailed out and I was logged in. Setting Up the Kanban Board The initial setup of the board was pretty easy.  I maybe clicked around an extra few times, but overall everything I needed to use the tool was immediately available.  The representation of everything was very similar to what one expects in a real Kanban Board too.  This is a HUGE plus, especially if a team is smart and places this tool in a centrally viewable area to allow for visibility. Each of the board items is just like a post it, being blue, grey, green, pink, or one of another few colors.  Dragging them onto each swim lane on the board was flawless, making changes through the work super easy and intuitive. The other thing I really liked about AgileZen is that the Kanban Board had the swim lanes setup immediately.  One can change them, but when you know you immediately need a Ready Lane, Working Lane, and a Complete Lane it is nice to just have them right in front of you in the interface.  In addition, the Backlog is simply a little tab on the left hand side.  This is perfect for the Backlog Queue.  Out of the way, with the focus on the primary items. Once  I got the items onto the board I was easily able to get back to the actual work at hand versus playing around with the tool.  The fact that it was so easy to use, fast and easy UX, and overall a great layout put me back to work on things I needed to do versus sitting a playing with the tool.  That, in the end is the key to using these tools. LeanKit Kanban Account Creation Setting up the account got me straight into the online tool.  This I thought was pretty cool. Setting Up the Kanban Board Setting up the Kanban Board within Leankit was a bit of trouble.  There were multiple UX issues in regard to process and intuitiveness.  The Leankit basically forces one to design the whole board first, making no assumptions about how the board should look.  The swim lanes in my humble opinion should be setup immediately without any manipulation with the most common lanes;  ready, working, and complete. The other UX hiccup that I had a problem with is that as soon as I managed to get the swim lanes into place, I wanted to remove the redundant Backlog Lane.  The Backlog Lane, or Backlog Bucket should be somewhere that I accidentally added as a lane.  Then on top of that I screwed up and added an item inside the lane, which then prevented me from deleting the lane.  I had to go back out of the lane manipulation, remove the item, and then remove the excess lane.  Summary Leankit wasn't a bad interface, it just wasn't as good as AgileZen.  The AgileZen interface was just better UX design overall.  AgileZen also presents a much better user interface graphical design all together.  It is much closer to what the Kanban Board would look like if it were a physical Kanban Board.  Since one of the HUGE reasons for Kanban is to increase visibility, the fact the design is similar to what a real Kanban Board is actually a pretty big deal. This is an image (click for larger) that shows the two Kanban Boards side by side.  The one on the left is AgileZen and the right is Leankit. Original Entry

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• F# WPF Form &ndash; the basics

  - by MarkPearl

  I was listening to Dot Net Rocks show #560 about F# and during the podcast Richard Campbell brought up a good point with regards to F# and a GUI. In essence what I understood his point to be was that until one could write an end to end application in F#, it would be a hard sell to developers to take it on. In part I agree with him, while I am beginning to really enjoy learning F#, I can’t but help feel that I would be a lot further into the language if I could do my Windows Forms like I do in C# or VB.NET for the simple reason that in “playing” applications I spend the majority of the time in the UI layer… So I have been keeping my eye out for some examples of creating a WPF form in a F# project and came across Tim’s F# Twitter Stream Sample, which had exactly this…. of course he actually had a bit more than a basic form… but it was enough for me to scrap the insides and glean what I needed. So today I am going to make just the very basic WPF form with all the goodness of a XAML window. Getting Started First thing we need to do is create a new solution with a blank F# application project – I have made mine called FSharpWPF. Once you have the project created you will need to change the project type from a Console Application to a Windows Application. You do this by right clicking on the project file and going to its properties… Once that is done you will need to add the appropriate references. You do this by right clicking on the References in the Solution Explorer and clicking “Add Reference'”. You should add the appropriate .Net references below for WPF & XAMl to work. Once these references are added you then need to add your XAML file to the project. You can do this by adding a new item to the project of type xml and simply changing the file extension from xml to xaml. Once the xaml file has been added to the project you will need to add valid window XAML. Example of a very basic xaml file is shown below… <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="F# WPF WPF Form" Height="350" Width="525"> <Grid> </Grid> </Window> Once your xaml file is done… you need to set the build action of the xaml file from “None” to “Resource” as depicted in the picture below. If you do not set this you will get an IOException error when running the completed project with a message along the lines of “Cannot locate resource ‘window.xaml’ You then need to tie everything up by putting the correct F# code in the Program.fs to load the xaml window. In the Program.fs put the following code… module Program open System open System.Collections.ObjectModel open System.IO open System.Windows open System.Windows.Controls open System.Windows.Markup [<STAThread>] [<EntryPoint>] let main(_) = let w = Application.LoadComponent(new System.Uri("/FSharpWPF;component/Window.xaml", System.UriKind.Relative)) :?> Window (new Application()).Run(w) Once all this is done you should be able to build and run your project. What you have done is created a WPF based window inside a FSharp project. It should look something like below…   Nothing to exciting, but sufficient to illustrate the very basic WPF form in F#. Hopefully in future posts I will build on this to expose button events etc.

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• It’s the thought that counts…

  - by Tony Davis

  I recently finished editing a book called Tribal SQL, and it was a fantastic experience. It’s a community-sourced book written by first-timers. Fifteen previously unpublished authors contributed one chapter each, with the seemingly simple remit to write about “what makes them passionate about working with SQL Server, something that all SQL Server DBAs and developers really need to know”. Sure, some of the writing skills were a bit rusty as one would expect from busy people, but the ideas and energy were sheer nectar. Any seasoned editor can deal easily with the problem of fixing the output of untrained writers. We can handle with the occasional technical error too, which is why we have technical reviewers. The editor’s real job is to hone the clarity and flow of ideas, making the author’s knowledge and experience accessible to as many others as possible. What the writer needs to bring, on the other hand, is enthusiasm, attention to detail, common sense, and a sense of the person behind the writing. If any of these are missing, no editor can fix it. We can see these essential characteristics in many of the more seasoned and widely-published writers about SQL. To illustrate what I mean by enthusiasm, or passion, take a look at the work of Laerte Junior or Fabiano Amorim. Both authors have English as a second language, but their energy, enthusiasm, sheer immersion in a technology and thirst to know more, drives them, with a little editorial help, to produce articles of far more practical value than one can find in the “manuals”. There’s the attention to detail of the likes of Jonathan Kehayias, or Paul Randal. Read their work and one begins to understand the knowledge coupled with incredible rigor, the willingness to bend and test every piece of advice offered to make sure it’s correct, that marks out the very best technical writing. There’s the common sense of someone like Louis Davidson. All writers, including Louis, like to stretch the grey matter of their readers, but some of the most valuable writing is that which takes a complicated idea, or distils years of experience, and expresses it in a way that sounds like simple common sense. There’s personality and humor. Contrary to what you may have been told, they can and do mix well with technical writing, as long as they don’t become a distraction. Read someone like Rodney Landrum, or Phil Factor, for numerous examples of articles that teach hard technical lessons but also make you smile at least twice along the way. Writing well is not easy and it takes a certain bravery to expose your ideas and knowledge for dissection by others, but it doesn’t mean that writing should be the preserve only of those trained in the art, or best left to the MVPs. I believe that Tribal SQL is testament to the fact that if you have passion for what you do, and really know your topic then, with a little editorial help, you can write, and people will learn from what you have to say. You can read a sample chapter, by Mark Rasmussen, in this issue of Simple-Talk and I hope you’ll consider checking out the book (if you needed any further encouragement, it’s also for a good cause, Computers4Africa). Cheers, Tony  

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• The Oracle Retail Week Awards - most exciting awards yet?

  - by sarah.taylor(at)oracle.com

  Last night's annual Oracle Retail Week Awards saw the UK's top retailers come together to celebrate the very best of our industry over the last year.  The Grosvenor House Hotel on Park Lane in London was the setting for an exciting ceremony which this year marked several significant milestones in British - and global - retail.  Check out our videos about the event at our Oracle Retail YouTube channel, and see if you were snapped by our photographer on our Oracle Retail Facebook page. There were some extremely hot contests for many of this year's awards - and all very deserving winners.  The entries have demonstrated beyond doubt that retailers have striven to push their standards up yet again in all areas over the past year.  The judging panel includes some of the most prestigious names in the retail industry - to impress the panel enough to win an award is a substantial achievement.  This year the panel included the likes of Andy Clarke - Chief Executive of ASDA Group; Mark Newton Jones - CEO of Shop Direct Group; Richard Pennycook - the finance director at Morrisons; Rob Templeman - Chief Executive of Debenhams; and Stephen Sunnucks - the president of Gap Europe.  These are retail veterans  who have each helped to shape the British High Street over the last decade.  It was great to chat with many of them in the Oracle VIP area last night.  For me, last night's highlight was honouring both Sir Stuart Rose and Sir Terry Leahy for their contributions to the retail industry.  Both have set the standards in retailing over the last twenty years and taken their respective businesses from strength to strength, demonstrating that there is always a need for innovation even in larger businesses, and that a business has to adapt quickly to new technology in order to stay competitive.  Sir Terry Leahy's retirement this year marks the end of an era of global expansion for the Tesco group and a milestone in the progression of British retail.  Sir Terry has helped steer Tesco through nearly 20 years of change, with 14 years as Chief Executive.  During this time he led the drive for international expansion and an aggressive campaign to increase market share.  He has led the way for High Street retailers in adapting to the rise of internet retailing and nurtured a very successful home delivery service.  More recently he has pioneered the notion of cross-channel retailing with the introduction of Tesco apps for the iPhone and Android mobile phones allowing customers to scan barcodes of items to add to a shopping list which they can then either refer to in store or order for delivery.  John Lewis Partnership was a very deserving winner of The Oracle Retailer of the Year award for their overall dedication to excellent retailing practices.  The business was also named the American Express Marketing/Advertising Campaign of the Year award for their memorable 'Never Knowingly Undersold' advert series, which included a very successful viral video and radio campaign with Fyfe Dangerfield's cover of Billy Joel's 'She's Always a Woman' used for the adverts.  Store Design of the Year was another exciting category with Topshop taking the accolade for its flagship Oxford Street store in London, which combines boutique concession-style stalls with high fashion displays and exclusive collections from leading designers.  The store even has its own hairdressers and food hall, making it a truly all-inclusive fashion retail experience and a global landmark for any self-respecting international fashion shopper. Over the next few weeks we'll be exploring some of the winning entries in more detail here on the blog, so keep an eye out for some unique insights into how the winning retailers have made such remarkable achievements. 

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• IIS Logfile Visualization with XNA

  - by BobPalmer

  In my office, I have a wall mounted monitor who's whole purpose in life is to display perfmon stats from our various servers.  And on a fairly regular basis, I have folks walk by asking what the lines mean.    After providing the requisite explaination about CPU utilization, disk I/O bottlenecks, etc. this is usually followed by some blank stares from the user in question, and a distillation of all of our engineering wizardry down to the phrase 'So when the red line goes up that's bad then?'   This of course would not do.  So I talked to my friends and our network admin about an option to show something more eye catching and visual, with which we could catch at a glance a feel for what was up with our site.    He initially pointed me out to a video showing GLTail and Chipmunk done in Ruby.  Realizing this was both awesome, and that I needed an excuse to do something in XNA, I decided to knock out a proof of concept for something very similar, but with a few tweaks.   Here's a link to a video of the current prototype:   http://www.youtube.com/watch?v=jM_PWZbtH2I   Essentially this app opens up a log file (even an active one) and begins pulling out the lines of text.  (Here's a good Code Project link that covers how to do tail reading from an active text file: http://www.codeproject.com/KB/files/tail.aspx).   As new data is added, a bubble is generated in the application - a GET statement comes from the left, and a POST from the right.  I then run it through a series of expression checkers, and based on the kind of statement and the pattern, a bubble of an appropriate color is generated.   For example, if I get a 500, a huge red bubble pops out.  Others are based on the part of the system the page is from - i.e. green bubbles are from our claims management subsystem, and blue bubbles are from the pages our scheduling staff use to schedule patients.  Others include the purple bubbles for security and login, and yellow bubbles for some miscellaneous pages.   The little grey bubbles represent things like images, JS, CSS, etc - and their small size makes them work like grease to keep the larger page bubbles moving.   The app is also smart enough that if it is starting to bog down with handling the physics and interactions, it will suspend new bubbles until enough have dropped off that performance can resume (you can see this slight stuttering in the sample video).   The net result is that anyone will be able to look up on the wall monitor, and instantly get a quick feel for how things are going on the floor.  Website slow?  You can get a feel for both volume and utilized modules with one glance.  Website crashing?  Look for a wall of giant red bubbles.  No activity at all?  Maybe the site is down.  Now couple this with utilization within a farm, and cross referenced with a second app showing the same kind of data from your SQL database...   As for the app itself, it's a windows XNA project with the code in C#.   The physics are handled by the Farseer physicis eingine for XNA (http://www.codeplex.com/FarseerPhysics) which is just pure goodness.  The samples are great, and I had the app up and working in two evenings (half of that was fine tuning, and the other was me coding with a kid in my lap).   My next steps include wiring this to SQL (I have some ideas...), and adding a nice configuration module.  For example, you could use polygons, etc to tie to your regex - or more entertaining things like having a little human ragdoll to represent a user login.     Once that's wrapped up and I have a chance to complete some hardening, I will be releasing the whole thing into the wild as opensource.     Feel free to ping me if you have any questions! -Bob

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• Copy TFS Build Definitions between Projects and Collections

  - by Jakob Ehn

  Originally posted on: http://geekswithblogs.net/jakob/archive/2014/06/05/copy-tfs-build-definitions-between-projects-and-collections.aspxThe last couple of years it has become apparent that using multiple team projects in TFS is generally a bad idea. There are of course exceptions to this, but there are a lot ot things that becomes much easier to do when you put all of your projects and team in the same team project. Fellow ALM MVP Martin Hinshelwood has blogged about this several times, as well as other people in the community. In particular, using the backlog and portfolio management tools makes much more sense when everything is located in the same team project. Consolidating multiple team projects into one is not that easy unfortunately, it involves migrating source code, work items, reports etc.  Another thing that also need to be migrated is build definitions. It is possible to clone build definitions within the same team project using the TFS power tools. The Community TFS Build Manager also lets you clone build definitions to other team projects. But there is no tool that allows you to clone/copy a build definition to another collection. So, I whipped up a simple console application that let you do this. The tool can be downloaded from https://onedrive.live.com/redir?resid=EE034C9F620CD58D!8162&authkey=!ACTr56v1QVowzuE&ithint=file%2c.zip   Using CopyTFSBuildDefinitions You use the tool like this: CopyTFSBuildDefinitions  SourceCollectionUrl  SourceTeamProject  BuildDefinitionName  DestinationCollectionUrl  DestinationTeamProject [NewDefinitionName] Arguments SourceCollectionUrl The URL to the TFS collection that contains the team project with the build definition that you want to copy SourceTeamProject The name of the team project that contains the build definition BuildDefinitionName Name of the build definition DestinationCollectionUrl The URL to the TFS collection that contains the team project that you want to copy your build definition to DestinationTeamProject The name of the team project in the destination collection NewDefinitionName (Optional) Use this to override the name of the new build definition. If you don’t specify this, the name will the same as the original one Example: CopyTFSBuildDefinitions  https://jakob.visualstudio.com DemoProject  WebApplication.CI https://anotheraccount.visualstudio.com     Notes Since we are (potentially) create a build definition in a new collection, there is no guarantee that the various paths that are defined in the build definition exist in the new collection. For example, a build definition refers to server paths in TFVC or repos + branches in TFGit. It also refers to build controllers that definitely don’t exist in the new collection. So there will be some cleanup to do after you copy your build definitions. You can fix some of these using the Community TFS Build Manager, for example it is very easy to apply the correct build controller to a set of build definitions The problem stated above also applies to build process templates. However, the tool tries to find a build process template in the new team project with the same file name as the one that existed in the old team project. If it finds one, it will be used for the new build definition. Otherwise is will use the default build template If you want to run the tool for many build definitions, you can use this SQL scripts, compliments of Mr. Scrum/ALM MVP Richard Hundhausen to generate the necessary commands: USE Tfs_Collection GO SELECT 'CopyTFSBuildDefinitions.exe http://SERVER:8080/tfs/collection "' + P.ProjectName + '" "' + REPLACE(BD.DefinitionName,'\','') + '" http://NEWSERVER:8080/tfs/COLLECTION TEAMPROJECT'   FROM tbl_Project P        INNER JOIN tbl_BuildGroup BG on BG.TeamProject = P.ProjectUri        INNER JOIN tbl_BuildDefinition BD on BD.GroupId = BG.GroupId   ORDER BY P.ProjectName, BD.DefinitionName   Hope that helps, let me know if you have any problems with the tool or if you find it useful

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• Tablet design guide, Endeca patterns now available

  - by JuergenKress

  UX Direct, an Oracle program that offers consultants, partners, and customers the same scientifically proven and reusable user experience best practices that Oracle uses to build Oracle Applications, recently added links to a new design guide for creating tablet-based solutions for enterprise applications, and to the recently published Endeca User Interface Design Pattern Library. The tablet design guide is available from the UX Direct Home page. Tap the button under “Latest patterns & tools” for “Oracle Applications UX Tablet Guide.” It provides basic help for designers, developers, and project managers trying to approach tablet design and testing from an enterprise point of view. To hear what developers are saying about it, follow the links from this post on the User Experience Assistance blog. The newly released Endeca User Interface Design Pattern Library is also available from the UX Direct Home page and from a post on the User Experience Assistance blog. It describes principled ways to solve common user interface (UI) design problems related to search, faceted navigation, and discovery. The link between Simplified UI and Oracle UX strategy, plus content you can share on the cloud, ADf, tailoring, and more Simplified User Interface in Oracle Fusion Applications Fronts Oracle Cloud Offerings This new article on Simplified UI has just been posted on Usable Apps. Learn about the three themes - simplicity, mobility, and extensibility – that Simplified UI embodies. These same principles are guiding the development of the next generation of the Oracle user experience. Oracle's Applications User Experience Strategy: One Cloud User Experience, with Optimized UIs Where and How You Want This podcast from Misha Vaughan, Director, User Experience, is now available on the Oracle University Knowledge Center. It is available for partners and Oracle employees at this iLearning Link. Oracle Partner Builds User Experience That Hits Right Note for New Employees This new article on the Usable Apps website explores the experience of consultants at IntraSee as they implement a PeopleSoft onboarding process for Invesco, a global asset management company. The Feng Shui of Fusion This article in Oracle Scene is from Grant Ronald, Director of Product Management, on the Tools of Fusion: Oracle JDeveloper and Oracle ADF. Hands-On Workshop with Fusion Applications and ADF UX Desktop Design Patterns This post on the Voice of User Experience, or VoX, blog from Misha Vaughan describes a new kind of workshop for partners and a handful of internal Oracle sales folks on extending Oracle Fusion Applications and building custom applications with Application Development Framework (ADF) while maintaining the Oracle user experience. To learn more about the content that was delivered during this three-day workshop, visit the Usable Apps blog. Recent posts from a new blog series take a look at several of the topics discussed during the workshop. Applications User Experience Fundamentals Visual Design for any Enterprise User Interface / Art School in a Box Wireframing / Blueprinting Usable Applications Concepts. Tailoring videos This blog post from Richard Bingham, Applications Architect, on the Fusion Applications Developer Relations blog provides links to several videos that show many customization and development tasks using the Oracle Fusion Applications platform. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Mix Forum Technorati Tags: UX,Architecture,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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• Buy iPads In India From eZone, Reliance iStores [Chennai, Bangalore, Delhi, Mumbai]

  - by Gopinath

  Close to an year wait for Apple iPad in India is over. Now everyone can buy a genuine iPad with manufacturers’ warranty from dozens of retail outlets set up by Future Bazar’s eZone and Reliance iStore. This puts an end to the grey market that was importing iPads through illegal channels, selling them at staggering high prices and with no warranty. iPad Retail Price at eZone & Outlet Address The iPad page on eZone’s website has price details of various models and they range from Rs.27,900/- to Rs.44,000/-. iPad 16 GB WiFi  – Rs. 27900.00 iPad 32 GB WiFi  – Rs. 32900.00 iPad 64 GB WiFi  – Rs. 37900.00 iPad 16 GB WiFi  + 3G – Rs. 34900.00 iPad 32 GB WiFi  + 3G – Rs. 39900.00 iPad 64 GB WiFi  + 3G – Rs. 44900.00 Here is the list of eZone stores selling iPads Chennai Stores eZone :: CHENNAI-GANDHI SQUARE Gandhi Square, ( G2),No. 46, Old Mahabalipuram Road, Kandanchavadi, Chennai ( Before Lifeline Hospital) – 600096. Phone : 24967771/7 eZone :: CHENNAI-MYLAPORE Grand Terrace, Old no. 94, new door no. 162, Luz Church Road, Mylapore, Chennai – . Tamil Nadu. Phone : 24987867/68. Mumbai Stores eZone :: MUMBAI-GOREGAON Shop No-S-23, 2nd Floor, Oberoi Mall Off Western Express Highway , Goregaon(E) , Mumbai – 400063, Phone: 28410011/40214771. eZone :: MUMBAI-POWAI-HAIKO MALL Hailko Mall, Level 2, Central Avenue, Hiranandani Garden, Powai, Mumbai, 400076. Phone: 25717355/56. eZone :: EZ-Sobo Central C wing,SOBO Central, Next to Tardoe AC Market, Pandit Madan Mohan Malviya Road, Mumbai – 400034. Phone : 022-30089344. Bangalore Stores eZone :: Koramangala (Bnglr) Regent Insignia, Ground Floor,# 414, 100 Ft Road, Koramangala, Bangalore – 560034 Phone : 080-25520241/242/243. eZone :: BANGALORE-INDIRA NAGAR No.62, Asha Pearl,100 Feet Road, Opp.AXIS Bank.Indiranagar, Bangalore – 560038 Phone : 25216857/6855/6856. eZone :: BANGALORE-PASADENA pasadena’ (Ground floor),18/1.(old number 125/a),10th main,Ashoka pillar road,Jaynagar 1st block,Bangalore – 560 011. Phone : 26577527. Delhi Stores eZone :: NEW DELHI-PUSA ROAD Ground/Lower Ground Floor, Plot # 26, Pusa Road, Adjacent to Karol Bagh Metro Station, Karol Bagh, New Delhi – 110005. Phone :28757040/41. For more details check eZone iPad Product Page iPads at Reliance iStore Reliance iStores are exclusive outlets for selling Apple products in India. All the models of iPad are available at Reliance iStore and the price details are not available on their websites. You may walk into any of the iStore close by your locality or call them to get the details. To locate the stores close by your locality please check store locator page on iStore Website. Do you know any other retail stores selling iPads in India? This article titled,Buy iPads In India From eZone, Reliance iStores [Chennai, Bangalore, Delhi, Mumbai], was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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• links for 2010-12-08

  - by Bob Rhubart

  What's a data architect? A comic dialog by one who knows: Oracle ACE Director Lewis Cunningham. Webcast: Oracle Business Intelligence Forum - December 15, 2010 at 9:00 am PT "The Oracle Business Intelligence Online Forum is a half-day virtual event that offers you a unique opportunity to see, in one place, the full portfolio of Oracle’s Business Intelligence (BI) offerings, and to learn what sets Oracle apart from the rest. Hear Oracle executives and industry analyst, Howard Dresner, present the current state of Business Intelligence, along with a series of customers who will share their case studies of putting analytics in action." Oracle Rolls Out Private Cloud Architecture And World-Record Transaction Performance | Forrester Blogs "Exadata has been dealt with extensively in other venues, both inside Forrester and externally, and appears to deliver the goods for I&O groups who require efficient consolidation and maximum performance from an Oracle database environment." -- Richard Fichera, Forrester Seven ways to get things started: Java EE Startup Classes with GlassFish and WebLogic "This is a blog about a topic that I realy don't like. But it comes across my ways over and over again and it's no doubt that you need it from time to time. Enough reasons for me to collect some information about it and publish it for your reference. I am talking about Startup-/Shutdown classes with Java EE applications or servers." -- Oracle ACE Director Markus "@myfear" Eisele." Monitoring Undelivered Messages in BPEL in SOA 10g (Antony Reynolds' Blog) "I am currently working with a client that wants to know how many undelivered messages they have, and if it reaches a certain threshold then they wants to alert the operator. To do this they plan on using the Enterprise Manager alert functions, but first they needs to know how many undelivered instances are out there." SOA author Antony Reynolds VirtualBox Appliances for Developers "Developers can simply download a few files, assemble them with a script , and then import and run the resulting pre-built VM in VirtualBox. This makes starting with these technologies even easier. Each appliance contains some Hands-On-Labs to start learning." -- Peter Paul van de Beek Oracle UCM 11g Remote Intradoc Client (RIDC) Integration with Oracle ADF 11g "It's great we have out of the box WebCenter ADF task flows for document management in UCM. However, for complete business scenario implementations, usually it's not enough and we need to manage Content Repository programmatically. This can be achieved through Remote Intradoc Client (RIDC) API. It's quite hard to find any practical information about this API, but I managed to get code for UCM folder creation/removal and folder information." -- Oracle ACE Director Andrejus Baranovskis Interview with Java Champion Matjaz B. Juric on Cloud Computing, SOA, and Java EE 6 "Matjaz Juric of Slovenia, head of the Cloud Computing and SOA Competence Centre at the University of Maribor, and professor at the University of Ljubljana, shares insights about cloud computing, SOA and Java EE 6." White Paper: Oracle Complex Event Processing High Availability "This whitepaper describes the high availability (HA) solutions available in Oracle CEP 11g Release 1 Patch Set 2 and  presents the results of a benchmark study demonstrating the performance of the Oracle CEP HA solutions."

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• ArchBeat Link-o-Rama Top 10 for August 2012

  - by Bob Rhubart

  The Top 10 most popular items shared via the OTN ArchBeat Facebook page for the month of August 2012. Now Available: Oracle SQL Developer 3.2 (3.2.09.23) New features include APEX listener, UI enhancements, and 12c database support. The Role of Oracle VM Server for SPARC in a Virtualization Strategy In this article, Matthias Pfutzner discusses hardware, desktop, and operating system virtualization, along with various Oracle virtualization technologies, including Oracle VM Server for SPARC. How to Manually Install Flash Player Plugin to see the Oracle Enterprise Manager Performance Page | Kai Yu So, you're a DBA and you want to check the Performance page in Oracle Enterprise Manager (11g or 12c). So you click the Performance tab and… nothing. Zip. Nada. The Flash plugin is a no-show. Relax! Oracle ACE Director Kai Yu shows you what you need to do to see all the pretty colors instead of that dull grey screen. Relationally Challenged (CX - CRM - EQ/RQ/CRQ) | Chris Warticki Self-proclaimed Oracle Support "spokesmodel" Chris Chris Warticki has some advice for those interested in Customer Relationship Management: "How about we just dumb it down, strip it to the core, keep it simple and LISTEN?! No more focus groups, no more surveys, and no need to gather more data. We have plenty of that. Why not just provide the customer what they are asking for?" Free WebLogic Server Course | Middleware Magic So you want to sharpen your Oracle WebLogic Server skills, but you prefer to skip the whole classroom bit and don't want to be bothered with dealing with an instructor? No problem! Oracle ACE Rene van Wijk, a prolific Middleware Magic blogger, has information on an Oracle WebLogic course you can take on your own time, at your own pace. Oracle VM VirtualBox 4.1.20 released Oracle VM VirtualBox 4.1.20 was just released at the community and Oracle download sites, reports the Fat Bloke. This is a maintenance release containing bug fixes and stability improvements. Optimizing OLTP Oracle Database Performance using Dell Express Flash PCIe SSDs | Kai Yu Oracle ACE Director Kai Yu shares resources based on "several extensive performance studies on a single node Oracle 11g R2 database as well as a two node 11gR2 Oracle Real Application clusters (RAC) database running on Dell PowerEdge R720 servers with Dell Express Flash PCIe SSDs on Oracle Enterprise Linux 6.2 platform." Oracle ACE sessions at Oracle OpenWorld With so many great sessions at this year's event, building your Oracle OpenWorld schedule can involve making a lot of tough choices. But you'll find that the sessions led by Oracle ACEs just might be the icing on the cake for your OpenWorld experience. MySQL Update: The Cleveland MySQL Meetup (Independence, OH) Oracle MySQL team member Benjamin Wood, a MySQL engineer and five year veteran of the MySQL organization, will speak at the Cleveland MySQL Meetup event on September 12. The presentation will include a MySQL 5.5 Overview, Oracle's Roadmap for MySQL, including specifics on MySQL 5.6, best practices and how to overcome development and operational MySQL challenges, and the new MySQL commercial extensions. Click the link for time and location information. Parsing XML in Oracle Database | Martijn van der Kamp Martijn van der Kamp's post deals with processing XML in PL/SQL code and processing the data into the database. Thought for the Day "Walking on water and developing software from a specification are easy if both are frozen." — Edward V. Berard Source: SoftwareQuotes.com

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• Create bullet physics rigid body along the vertices of a blender model

  - by Krishnabhadra

  I am working on my first 3D game, for iphone, and I am using Blender to create models, Cocos3D game engine and Bullet for physics simulation. I am trying to learn the use of physics engine. What I have done I have created a small model in blender which contains a Cube (default blender cube) at the origin and a UVSphere hovering exactly on top of this cube (without touching the cube) I saved the file to get MyModel.blend. Then I used File -> Export -> PVRGeoPOD (.pod/.h/.cpp) in Blender to export the model to .pod format to use along with Cocos3D. In the coding side, I added necessary bullet files to my Cocos3D template project in XCode. I am also using a bullet objective C wrapper. -(void) initializeScene { _physicsWorld = [[CC3PhysicsWorld alloc] init]; [_physicsWorld setGravity:0 y:-9.8 z:0]; /*Setup camera, lamp etc.*/ .......... ........... /*Add models created in blender to scene*/ [self addContentFromPODFile: @"MyModel.pod"]; /*Create OpenGL ES buffers*/ [self createGLBuffers]; /*get models*/ CC3MeshNode* cubeNode = (CC3MeshNode*)[self getNodeNamed:@"Cube"]; CC3MeshNode* sphereNode = (CC3MeshNode*)[self getNodeNamed:@"Sphere"]; /*Those boring grey colors..*/ [cubeNode setColor:ccc3(255, 255, 0)]; [sphereNode setColor:ccc3(255, 0, 0)]; float *cVertexData = (float*)((CC3VertexArrayMesh*)cubeNode.mesh).vertexLocations.vertices; int cVertexCount = (CC3VertexArrayMesh*)cubeNode.mesh).vertexLocations.vertexCount; btTriangleMesh* cTriangleMesh = new btTriangleMesh(); // for (int i = 0; i < cVertexCount * 3; i+=3) { // printf("\n%f", cVertexData[i]); // printf("\n%f", cVertexData[i+1]); // printf("\n%f", cVertexData[i+2]); // } /*Trying to create a triangle mesh that curresponds the cube in 3D space.*/ int offset = 0; for (int i = 0; i < (cVertexCount / 3); i++){ unsigned int index1 = offset; unsigned int index2 = offset+6; unsigned int index3 = offset+12; cTriangleMesh->addTriangle( btVector3(cVertexData[index1], cVertexData[index1+1], cVertexData[index1+2] ), btVector3(cVertexData[index2], cVertexData[index2+1], cVertexData[index2+2] ), btVector3(cVertexData[index3], cVertexData[index3+1], cVertexData[index3+2] )); offset += 18; } [self releaseRedundantData]; /*Create a collision shape from triangle mesh*/ btBvhTriangleMeshShape* cTriMeshShape = new btBvhTriangleMeshShape(cTriangleMesh,true); btCollisionShape *sphereShape = new btSphereShape(1); /*Create physics objects*/ gTriMeshObject = [_physicsWorld createPhysicsObjectTrimesh:cubeNode shape:cTriMeshShape mass:0 restitution:1.0 position:cubeNode.location]; sphereObject = [_physicsWorld createPhysicsObject:sphereNode shape:sphereShape mass:1 restitution:0.1 position:sphereNode.location]; sphereObject.rigidBody->setDamping(0.1,0.8); } When I run the sphere and cube shows up fine. I expect the sphere object to fall directly on top of the cube, since I have given it a mass of 1 and the physics world gravity is given as -9.8 in y direction. But What is happening the spere rotates around cube three or times and then just jumps out of the scene. Then I know I have some basic misunderstanding about the whole process. So my question is, how can I create a physics collision shape which corresponds to the shape of a particular mesh model. I may need complex shapes than cube and sphere, but before going into them I want to understand the concepts.

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• Java, two JPanel on JFrame - Settings JPanel, StartMenu JPanel [on hold]

  - by Andy Tyurin

  There is my first question and I welcome community! I'm making a simple game and have some problems with Start menu. I have three buttons on my JPanel StartMenu and when I click "Settings" button, new JPanel will be open, but I don't know why buttons from StartMenu JPanel appeared in my Settings JPanel. My "Settings" JPanel has one ugly button "Back" in center and ugly grey background. I made some screens to see a problem. Start Menu JPanel when game launched Settings JPanel when button clicked Settings JPanel when mouse was over settings window There is code of StartMenu class: public class StartMenu extends JPanel { private GameButton startGameButton = new GameButton("Start game"); private GameButton settingsGameButton = new GameButton("Settings"); private GameButton exitGameButton = new GameButton("Exit game"); private Image bgImage = new ImageIcon(getClass().getClassLoader().getResource("ru/andydevs/astraLaserForce/bg.png")).getImage(); private int posX; private int posY; final private int WIDTH=(int)Game.SCREEN_DIMENSION.getWidth()/3; final private int HEIGHT=(int)Game.SCREEN_DIMENSION.getHeight()/2; public StartMenu() { setLayout(new GridBagLayout()); GridBagConstraints c = new GridBagConstraints(); setSize(new Dimension(WIDTH, HEIGHT)); posX=(int)Game.SCREEN_DIMENSION.getWidth()/2-WIDTH/2; posY=(int)Game.SCREEN_DIMENSION.getHeight()/2-HEIGHT/2; setBounds(posX, posY,WIDTH,HEIGHT); c.ipadx=95; c.ipady=15; c.fill = GridBagConstraints.HORIZONTAL; c.insets = new Insets(20,0,0,0); c.gridy=0; add(startGameButton, c); c.gridy=1; c.insets = new Insets(20,0,0,0); System.out.println(settingsGameButton.getWidth()); add(settingsGameButton, c); c.gridy=2; c.insets = new Insets(20,0,0,0); add(exitGameButton, c); settingsGameButton.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { GameOptionsPanel gop = new GameOptionsPanel(); Game.container.add(gop); Game.container.setComponentZOrder(gop, 0); Game.container.revalidate(); Game.container.repaint(); } }); exitGameButton.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { Main.currentGame.stop(); } }); } public void paintComponent(Graphics g) { g.drawImage(bgImage,0,0,WIDTH,HEIGHT,null); } } There is code of Settings JPanel public class GameOptionsPanel extends GamePanel { private GameButton backButton = new GameButton("Back"); private GameOptionsPanel that; public GameOptionsPanel() { super((int) (Game.SCREEN_DIMENSION.getWidth()/3), (int) (Game.SCREEN_DIMENSION.getHeight()/2), new Color(50,50,50)); that=this; setLayout(new GridBagLayout()); GridBagConstraints gbc = new GridBagConstraints(); gbc.fill=gbc.HORIZONTAL; add(backButton); backButton.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { Game.container.remove(that); Game.container.revalidate(); Game.container.repaint(); } }); } } I glad to see some suggestions. Thanks.

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