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  • OpenTK C# Loading Model (3DS?) for display and animation

    - by Randomman159
    For the last few days i have been searching for a model importer that support skeletal movement using OpenTK (C#, OpenGL). I am avoiding writing it myself because firstly i am only just learning OpenGL, but also because i don't see why there's a necessity in recreating the wheel. What do you guys use to import your models? I find it interesting that 90% of OpenTK users will import models for various projects, yet i havn't found a single working importer. Could any of you share your code or point me in the direction of a good loader? 3DS files would be best, but anything that can be exported from an autodesk program would be fine, as long as it uses skeleton animation. Thanks for any help :)

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  • ASP.NET MVC Html.ValidationSummary(true) does not display model errors

    - by msi
    I have some problem with Html.ValidationSummary. I don't want to display property errors in ValidationSummary. And when I set Html.ValidationSummary(true) it does not display error messages from ModelState. When there is some Exception in controller action on string MembersManager.RegisterMember(member); catch section adds an error to the ModelState: ModelState.AddModelError("error", ex.Message); But ValidationSummary does not display this error message. When I set Html.ValidationSummary(false) all messages are displaying, but I don't want to display property errors. How can I fix this problem? Here is the code I'm using: Model: public class Member { [Required(ErrorMessage = "*")] [DisplayName("Login:")] public string Login { get; set; } [Required(ErrorMessage = "*")] [DataType(DataType.Password)] [DisplayName("Password:")] public string Password { get; set; } [Required(ErrorMessage = "*")] [DataType(DataType.Password)] [DisplayName("Confirm Password:")] public string ConfirmPassword { get; set; } } Controller: [HttpPost] public ActionResult Register(Member member) { try { if (!ModelState.IsValid) return View(); MembersManager.RegisterMember(member); } catch (Exception ex) { ModelState.AddModelError("error", ex.Message); return View(member); } } View: <% using (Html.BeginForm("Register", "Members", FormMethod.Post, new { enctype = "multipart/form-data" })) {%> <p> <%= Html.LabelFor(model => model.Login)%> <%= Html.TextBoxFor(model => model.Login)%> <%= Html.ValidationMessageFor(model => model.Login)%> </p> <p> <%= Html.LabelFor(model => model.Password)%> <%= Html.PasswordFor(model => model.Password)%> <%= Html.ValidationMessageFor(model => model.Password)%> </p> <p> <%= Html.LabelFor(model => model.ConfirmPassword)%> <%= Html.PasswordFor(model => model.ConfirmPassword)%> <%= Html.ValidationMessageFor(model => model.ConfirmPassword)%> </p> <div> <input type="submit" value="Create" /> </div> <%= Html.ValidationSummary(true)%> <% } %>

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  • ASP.NET MVC how to bind custom model to view

    - by Smallville
    I would like bind an array data to view in ASP.NET MVC, how can I do that? sorry for not clear about my question. Right now, I creat a custom object(not array), I tried to pass it to View, but the error shows "The model item passed into the dictionary is of type 'ContactView' but this dictionary requires a model item of type 'System.Collections.Generic.IEnumerable"

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  • I keep on getting "save operation failure" after any change on my XCode Data Model

    - by Philip Schoch
    I started using Core Data for iPhone development. I started out by creating a very simple entity (called Evaluation) with just one string property (called evaluationTopic). I had following code for inserting a fresh string: - (void)insertNewObject { // Create a new instance of the entity managed by the fetched results controller. NSManagedObjectContext *context = [fetchedResultsController managedObjectContext]; NSEntityDescription *entity = [[fetchedResultsController fetchRequest] entity]; NSManagedObject *newManagedObject = [NSEntityDescription insertNewObjectForEntityForName:[entity name] inManagedObjectContext:context]; // If appropriate, configure the new managed object. [newManagedObject setValue:@"My Repeating String" forKey:@"evaluationTopic"]; // Save the context. NSError *error; if (![context save:&error]) { // Handle the error... } [self.tableView reloadData]; } This worked perfectly fine and by pushing the +button a new "My Repeating String" would be added to the table view and be in persistent store. I then pressed "Design - Add Model Version" in XCode. I added three entities to the existing entity and also added new properties to the existing "Evaluation" entity. Then, I created new files off the entities by pressing "File - New File - Managed Object Classes" and created a new .h and .m file for my four entities, including the "Evaluation" entity with Evaluation.h and Evaluation.m. Now I changed the model version by setting "Design - Data Model - Set Current Version". After having done all this, I changed my insertMethod: - (void)insertNewObject { // Create a new instance of the entity managed by the fetched results controller. NSManagedObjectContext *context = [fetchedResultsController managedObjectContext]; NSEntityDescription *entity = [[fetchedResultsController fetchRequest] entity]; Evaluation *evaluation = (Evaluation *) [NSEntityDescription insertNewObjectForEntityForName:[entity name] inManagedObjectContext:context]; // If appropriate, configure the new managed object. [evaluation setValue:@"My even new string" forKey:@"evaluationSpeechTopic"]; // Save the context. NSError *error; if (![context save:&error]) { // Handle the error... } [self.tableView reloadData]; } This does not work though! Every time I want to add a row the simulator crashes and I get the following: "NSInternalInconsistencyException', reason: 'This NSPersistentStoreCoordinator has no persistent stores. It cannot perform a save operation.'" I had this error before I knew about creating new version after changing anything on the datamodel, but why is this still coming up? Do I need to do any mapping (even though I just added entities and properties that did not exist before?). In the Apple Dev tutorial it sounds very easy but I have been struggling with this for long time, never worked after changing model version.

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  • Entitiy Framework: "Update Database from Model" instead of "Generate Database from Model"

    - by David
    Hey everyone, I have created a Entity Framework 4 model with Visual Studio 2010 and generated a database from it. Now I found myself adding new properties (with default values), changing documentation of columns, changing names of columns, changing types of columns several times. All tasks that do not require much "extra work" in order not to be possible to be achieved automatically (in my humble opinion). Everytime I did "Generate Database from Model" and lost of course the table data. Is there a way just to update the database's architecture so to say - leaving the table data untouched? Maybe with some user interaction especially when changing types etc.? Or would this functionality be simply too difficult to be realized to work in a reliable way? Thanks in advance! Cheers, David

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  • Spring.NET and ADO.NET Entity Data Model

    - by Jason
    Having defined an ADO.NET Entity Data Model, I can then instantiate it in a Repository class to query against the database. using (ApplicationEntities ctx = new ApplicationEntities()) { // query, CRUD, etc } However, that particular line of code becomes boilerplate in most of the methods in the repository class. Is it possible to just use Spring.NET to inject the Entity Data Model, either in the class or, even better, in an abstract parent class that all the repositories inherit from?

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  • Dynamic Typed Table/Model in J2EE?

    - by Viele
    Hi, Usually with J2EE when we create Model, we define the fields and types of fields through XML or annotation before compilation time. Is there a way to change those in runtime? or better, is it possible to create a new Model based on the user's input during the runtime? such that the number of columns and types of fields are dynamic (determined at runtime)? Help is much appreciated. Thank you.

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  • What is the "box model?"

    - by Chris
    During a recent interview for a front-end developer position I was asked what the box model was. I thought the interviewer was referring to testing (i.e. white box testing, black box testing). I was wrong. What is the box model, in reference to front-end development?

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  • route view for new IPs?

    - by Clear.Cache
    The route view method is not working for me telnet route-views.routeviews.org (logged in with user "rviews") route-viewsshow ip bgp 173.244.44.0 | inc 10464 route-viewsshow ip bgp 173.244.44.0 % Network not in table route-views Am I doing something wrong?

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  • Can I use a specific model from within a behavior in CakePHP?

    - by Paul Willy
    I'm trying to write a behavior that will give my models access to a simple workflow engine I've devised. The workflow engine itself works as a CakePHP model, with workflow data stored in the database just as any other model data is stored. Basically what I want to do is have the behavior use the workflow model whenever an action is called on the base model. For example, if the edit() action is executed for Posts, then the Post (with the behavior attached) will trigger the workflow behavior with its own model name, action, and id as arguments (e.g. [Post, edit, 1]). Then the behavior will invoke the functionality of the Workflow model, which has a record for what to do when edit is run on Posts (e.g. send e-mail to users who are subscribed to that post) and will carry that out. My question is, what is the proper way to invoke model/controller methods from within the behavior? The model to be used from within the behavior will always be Workflow, but the behavior should be usable from basically any model (aside from Workflow itself). I know I could run SQL queries directly from the behavior, but of course this is not the Cake way :-) Or, am I going about this in the wrong way? I want to store a certain amount of logic in the database so that it is easily configurable by different users, and not have endless configuration checks within the model/controller logic itself so that workflow steps can be easily added/changed/removed in the future.

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  • Hiding a button on pushed view and showing it when back to list view

    - by torr
    When I load my list view it has several blog posts and a refresh button on the top left. If I tap on a list item a view is pushed with the contents of that specific post. When this view is pushed in, the refresh button is hidden. But when I tap 'Back' to the parent list view, I'd like the refresh button to show (un-hide) - but it remains hidden. Any idea how to make this work? This is my View: Ext.require(['Ext.data.Store', 'MyApp.model.StreamModel'], function() { Ext.define('MyApp.view.HomeView', { extend: 'Ext.navigation.View', xtype: 'homepanel', requires: [ 'Ext.dataview.List', ], config: { title: 'Home', iconCls: 'home', styleHtmlContent: true, navigationBar: { items: [ { xtype: 'button', iconMask: true, iconCls: 'refresh', align: 'left', action: 'refreshButton', id: 'refreshButtonId' } ] }, items: { title: 'My', xtype: 'list', itemTpl: [ '<div class="post">', ... '</div>' ].join(''), store: new Ext.data.Store({ model: 'MyApp.model.StreamModel', autoLoad: true, storeId: 'stream' }), } } }); }); and my Controller: Ext.define('MyApp.controller.SingleController', { extend: 'Ext.app.Controller', config: { refs: { stream: 'homepanel' }, control: { 'homepanel list': { itemtap: 'showPost' } } }, showPost: function(list, index, element, record) { this.getStream().push({ xtype: 'panel', html: [ '<div class="post">', '</div>' ].join(''), scrollable: 'vertical', styleHtmlContent: true, }); Ext.getCmp('refreshButtonId').hide(); } });

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  • Cocoa - calling a VIEW method from the CONTROLLER

    - by eemerge
    Hello everyone, Got a little problem i asked about it before but maybe i didnt ask properly. I have a cocoa application, which amongst other things, must do the following task: - load some images from the disk, store them in an array and display them in a custom view. In the Interface Builder i have a CustomView and an OBJECT that points to TexturesController.h The custom view is a custom class, TextureBrowser. Below is the code for the controller and view: TexturesController #import <Cocoa/Cocoa.h> @class TextureBrowser; @interface TexturesController : NSObject { IBOutlet NSTextField *logWindow; IBOutlet TextureBrowser *textureView; NSMutableArray *textureList; } @property textureView; -(IBAction)loadTextures:(id)sender; -(IBAction)showTexturesInfo:(id)sender; @end TextureBrowser @interface TextureBrowser : NSView { NSMutableArray *textures; } @property NSMutableArray *textures; -(void)loadTextureList:(NSMutableArray *)source; @end These are just the headers. Now , what i need to do is: when loadTextures from the TexturesController is called, after i load the images i want to send this data to the view (TextureBrowser), for example, store it in the NSMutableArray *textures. I tried using the -(void)loadTextureList:(NSMutableArray*)source method from the view, but in the TextureController.m i get a warning : No -loadTextureList method found This is how i call the method : [textureView loadTextureList: textureList]; And even if i run it with the warning left there, the array in the view class doesnt get initialised. Maybe im missing something...maybe someone can give a simple example of what i need to do and how to do it (code). Thanks in advance.

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  • Is there an industry standard for systems registered user permissions in terms of database model?

    - by EASI
    I developed many applications with registered user access for my enterprise clients. In many years I have changed my way of doing it, specially because I used many programming languages and database types along time. Some of them not very simple as view, create and/or edit permissions for each module in the application, or light as access or can't access certain module. But now that I am developing a very extensive application with many modules and many kinds of users to access them, I was wondering if there is an standard model for doing it, because I already see that's the simple or the light way won't be enough.

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  • Keep icons for shortcuts in thumbnail view?

    - by buzter
    I want to keep icons for shortcuts in thumbnail view. eg: my pics folder is in thumbnail, but I want to easily see my familiar icons for shortcuts to various outside folders I drag the pics into, amongst the hundreds of pics and subfolders within my pics (which display the same as shortcuts at a glance) I had it like this on my last machine but I can't remember what I had to do. Reg tweak for filetype I think. (Using XPpro) Any clues? Thanks

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  • iPhone scrolling the view up when keyboard is open

    - by Rob
    I understand that this problem is incredibly common and I have read through quite a few answers but am having trouble understanding how the code works. This works: -(void)textFieldDidBeginEditing:(UITextField *)sender { if ([sender isEqual:txtLeaveAddyLine1]) { //move the main view, so that the keyboard does not hide it. if (self.view.frame.origin.y >= 0) { [self setViewMovedUp:YES]; } } } In this example, txtLeaveAddy is the very first UITextField that is hidden by the keyboard and it works like a charm. As I cycle through the text fields on the screen it scrolls up when the user enters into that txtLeaveAddyLine1 field. However, when I try to add the fields below the txtLeaveAddyLine1 field - nothing happens. For example: -(void)textFieldDidBeginEditing:(UITextField *)sender { if ([sender isEqual:txtLeaveAddyLine1]) { //move the main view, so that the keyboard does not hide it. if (self.view.frame.origin.y >= 0) { [self setViewMovedUp:YES]; } } if ([sender isEqual:txtLeaveAddyLine2]) { //move the main view, so that the keyboard does not hide it. if (self.view.frame.origin.y >= 0) { [self setViewMovedUp:YES]; } } } Am I not using this function correctly?

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  • MVC alternatives: examples of MVA & AVC?

    - by Phillip Oldham
    I'm interested in learning about the alternative patterns to Model-View-Controller, specifically the Model-View-Adapter and Application-View-Controller patterns. Google results tend to be either a high-level overview or Java-based. Can anyone either provide, or point me to, an example of these patterns in either PHP, Python or JavaScript?

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  • issue with tab bar view displaying a compound view

    - by ambertch
    I created a tab bar application, and I make the first tab a table. So I create a tableView controller, and go about setting the class identity of the view controller for the first tab to my tableView controller. This works fine, and I see the contents of the table filling up the whole screen. However, this is not what I actually want in the end goal - I would like a compound window having multiple views: - the aforementioned table - a custom view with data in it So what I do is create a nib for this content (call it contentNib), change the tab's class from the tableView controller to a generic UIViewController, and set the nib of that tab to this new contentNib. In this new contentNib I drag on a tableView and set File's Owner to the TableViewController. I then link the dataSource and delegate to file's owner (which is TableViewController). Surprisingly this does not work and I receive the error: **Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x3b0f910'** This is bewildering to me since the file's owner is the TableViewController, which has been assigned to be both the dataSource and delegate. Does someone have either insight into my confusions, or a link to an example of how to have a compound view include a tableView? *update* I see this in the Apple TableView programming guide: "Note: You should use a UIViewController subclass rather than a subclass of UITableViewController to manage a table view if the view to be managed is composed of multiple subviews, one of which is a table view. The default behavior of the UITableViewController class is to make the table view fill the screen between the navigation bar and the tab bar (if either are present)." <----- I don't really get what this is telling me to do though... if someone can explain or point me to an example I'd be much appreciated!

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  • Where to place logic in a rich domain model

    - by Fino
    I have a model "news item" which contains text, image etc to display as latest news on several pages in a website. This "news item" can also be posted to Twitter or Facebook. Is it clean to implement a method post inside the news item model and inject the different post implementations as a strategy? Or is it better to have a separate application service for this? Thanks

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  • Clone MySQL DB - errors with CREATE VIEW/SHOW VIEW privileges

    - by user43537
    Running MySQL 5.0.32 on Debian 4.0 (Etch). I'm trying to clone a WordPress MySQL database completely (structure and data) on the same server. I tried a dump to an .sql file and an import into a new empty database from the command line, but the import fails with errors saying the user does not have the "SHOW VIEW" or "CREATE VIEW" privilege. Trying it with PHPMyAdmin doesn't work either. I also tried doing this with the MySQL root user (not named "root" though) and it shows an "Access Denied" error. I'm terribly confused as to where the problem is. Any pointers on cloning a MySQL DB and granting all privileges to a user account would be great (specifically for MySQL 5.0.32). Thanks!

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  • Model won't render in my XNA game

    - by Daniel Lopez
    I am trying to create a simple 3D game but things aren't working out as they should. For instance, the mode will not display. I created a class that does the rendering so I think that is where the problem lies. P.S I am using models from the MSDN website so I know the models are compatible with XNA. Code: class ModelRenderer { private float aspectratio; private Model model; private Vector3 camerapos; private Vector3 modelpos; private Matrix rotationy; float radiansy = 0; public ModelRenderer(Model m, float AspectRatio, Vector3 initial_pos, Vector3 initialcamerapos) { model = m; if (model.Meshes.Count == 0) { throw new Exception("Invalid model because it contains zero meshes!"); } modelpos = initial_pos; camerapos = initialcamerapos; aspectratio = AspectRatio; return; } public Vector3 CameraPosition { set { camerapos = value; } get { return camerapos; } } public Vector3 ModelPosition { set { modelpos = value; } get { return modelpos; } } public void RotateY(float radians) { radiansy += radians; rotationy = Matrix.CreateRotationY(radiansy); } public float AspectRatio { set { aspectratio = value; } get { return aspectratio; } } public void Draw() { Matrix world = Matrix.CreateTranslation(modelpos) * rotationy; Matrix view = Matrix.CreateLookAt(this.CameraPosition, this.ModelPosition, Vector3.Up); Matrix projection = Matrix.CreatePerspectiveFieldOfView(MathHelper.ToRadians(45.0f), this.AspectRatio, 1.0f, 10000f); model.Draw(world, view, projection); } } If you need more code just make a comment.

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  • MVC and individual elements of the model under a common base class

    - by Stewart
    Admittedly my experience of using the MVC pattern is limited. It might be argued that I don't really separate the V from the C, though I keep the M separate from the VC to the extent I can manage. I'm considering the scenario in which the application's model includes a number of elements that have a common base class. For example, enemy characters in a video game, or shape types in a vector graphics app. The view wants to render these elements. Of course, the different subclasses call for different rendering. The problem is that the elements are part of the model. Rendering them is conceptually part of the view. But how they are to be rendered depends on parameters of both: Attributes and state of the element are parameters of the model User settings are parameters of the view - and to support multiple platforms and/or view modes, different views may be used What's your preferred way of dealing with this? Put the rendering code in the model classes, passing in any view parameters? Put the rendering code in the view, using a switch or similar to select the right rendering for the model element type? Have some intermediate classes as a model-view interface, of which the model will create objects on demand and the view will then render them? Something else?

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  • relationship between the model and the renderer

    - by acrilige
    I tried to build a simple graphics engine, and faced with this problems: i have a list of models that i need to draw, and object (renderer) that implements IRenderer interface with method DrawObject(Object* obj). Implementation of renderer depends on using graphics library (opengl/directx). 1st question: model should not know nothing about renderer implementation, but in this case where can i hold (cache) information that depends on renderer implementation? For example, if model have this definition: class Model { public: Model(); Vertex* GetVertices() const; private: Vertex* m_vertices; }; what is the best way to cache, for example, vertex buffer of this model for dx11? Hold it in renderer object? 2nd question: what is the best way for model to say renderer HOW it must be rendered (for example with texture, bump mapping, or may be just in one color). I thought it can be done with flags, like this: model-SetRenderOptions(RENDER_TEXTURE | RENDER_BUMPMAPPING | RENDER_LIGHTING); and in Renderer::DrawModel method check for each flag. But looks like it will become uncomfortable with the options count growth...

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