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  • Reduce Triangle in DirectX 9

    - by Himadri
    Hello everyone, I have a 3D object with about 2000 or 3000 triangles. I want to reduce the number of triangle without affecting shape of object. for eg, I have two triangles, (1,1.5,2) (1.5,1.5,2) (1.7,2,2) (1.5,1.5,2) (1.7,2,2) (2,1.5,2) In this case these two triangle is same as a single triangle - (1,1.5,2) (2,1.5,2) (1.7,2,2) I dont want the manual method, But if there is any direct function or such thing which will reduce my triangle list. Thank You.

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  • Google App Engine: Which is its RDBMS?

    - by Vimvq1987
    According to this: http://code.google.com/appengine/docs/whatisgoogleappengine.html it seems that GAE only uses Datastore to store data, which is equivalent with Table service on Windows Azure Platform. Does anyone know that which RDBMS it uses? or such thing exists or not?

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  • Visual Studio 2008 - Is it possible for two projects to share common classes?

    - by John M
    In Visual Studio 2008 I know its possible to have one solution with two (or more) projects. Is it possible OR How is it possible for the projects to share common class files? For example - Project 1 has a log file handling class. Can Project 2 reference it? My hope is to increase code re-use and avoid two copies of the same thing that need to be maintained. The target is Winforms C# (3.5)

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  • Where to put the star in C and C++ pointer notation

    - by Martin Kristiansen
    For some time the following has been annoing me, where should I put the star in my pointer notation. int *var; // 1 and int* var; // 2 obviously do the same thing, and both notations are correct, but I find that most literature and code I look at use the 1th notation. wouldn't it be more 'correct' to use the 2th notation, separating the type and the variable name by a whitespace, rather than mixing the type and variable tokens?

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  • Which methods are good to overwrite when creating custom NSManagedObject subclasses?

    - by mystify
    The Core Data Programming Guide talks a lot about what not to overwrite. So the question is: What is good to overwrite? Like I see it, I can't overwrite -init or -initWithEntity:insertIntoManagedObjectContext: So where else would be a good overwrite point to set up some basic stuff? Or is it generally not needed to do custom initialization? Does the whole thing rely only on accessing properties which then start to do fancy things? So no custom initializations?

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  • Is it possible to make this Flex/Flash application safe?

    - by Frank
    I'm back with another Flex/Flash security question. I've already received some help from the community on this topic, but I'm still not quite sure this is the best way to do. Here's the thing. A flex web app, a lot of users (1000+), custom configuration of the application depending of the user group. Can I make this thing safe... or safer. For the moment, when a user comes to the application, there is only one configuration possible, but for the next version we've implented a multi-configuration protocol, this way : 1. The user connect to Default.aspx, server code process the windows credentials (whe are on intranet) and give the correct xml configuration file. 2. The flex app loads with the xml conf file as a flashvar and then the app 'builds' itself with the content of the xml file. As we know, since this is a flex application the swf is downloaded on the client computer and the xml file too. If more than one user connects to the app, from the same computer, the can possibly see the other xml file in the windows temp folder. The current directory of the application looks that way : Web site |-> default.aspx |-> index.swf |-> configAdmin.xml |-> configUserType1.xml |-> configUserType2.xml |-> com |-> a lot of swf and xml files I was first thinking making another directory (without read access for the client) containing all the configurations xml files, picking the right one, copying it to the client and deleting it afterwards. But it seems like I must let know the user know when downloading/deleting content on it's computer... I'm running out of ideas, so I hope you have some great ones. It's there are some design flaws (in the way the app is build, not in Flash :p) please share. I'm always looking forward to improve. Thanks Update : In browser Flash/Flex (without AIR that is) doesn't allow deleting file localy silently (on the client computer, where the application is). It's also not yet possible to get session data.

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  • Renaming table in rails

    - by Tommy
    I want to rename a table... (any table.) I tried this line of code: ActiveRecord::ConnectionAdapters::SchemaStatements.rename_table(old_name, new_name) Here's the weird thing. I know I got it working the first time, but now I get this error: undefined method `rename_table' for ActiveRecord::ConnectionAdapters::SchemaStatements:Module Was there something I need to set? Or am I going blind here.. Thanks!

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  • Difference between macros and functions in C in relation to instruction memory and speed

    - by DAHANS
    To my understanding the difference between a macro and a function is, that a macro-call will be replaced by the instruction in the definition, and a function does the whole push, branch and pop -thing. Is this right, or have I understand something wrong? Additionally, if this is right, it would mean, that macros would take more space, but would be faster (because of the lack of the push,branch and pop instructions.), wouldn't it?

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  • In-app settings controlled by plist?

    - by cannyboy
    Is there a library or good tutorial which covers creating in-app settings, like this: http://img.skitch.com/20090625-s8bf6ahybwe3cesd1id38h3nt.jpg What I would like is if it: doesn't use the built-in Settings app is controlled by a plist file with various Dictionaries and Arrays creates a nice looking table view allows text fields as well as switches and sliders and ticks etc doesn't have any of the annoying problems I've come across when trying to build my own version (not scrolling to show the textfield, cells disappearing) It would appear that the iphone dev world is crying out for such a thing. THANK YOU!

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  • Regular expression - starting and ending with a letter, accepting only letters, numbers and _

    - by jreid9001
    I'm trying to write a regular expression which specifies that text should start with a letter, every character should be a letter, number or underscore, there should not be 2 underscores in a row and it should end with a letter or number. At the moment, the only thing I have is ^[a-zA-Z]\w[a-zA-Z1-9_] but this doesn't seem to work properly since it only ever matches 3 characters, and allows repeated underscores. I also don't know how to specify requirements for the last character.

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  • Submit form from greybox window to main window

    - by LookUp Webmaster
    Hi everyone, I'm using greybox and trying the following thing: I want to make a form inside the pop-up so when the users submit's it, the request goes to the main window and the pop-up closes. I know the way to close the window is by using onclick="parent.parent.GB_hide()", but I really haven't been able to find a way to make the pop-up close and the data sent to the corresponding controller when the form is submitted. I'm using Zend FW. Thanks in advance, I really appreciate what this community does.

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  • BlackBerry - Handle and translate messages (sms/email/pim/pin)?

    - by humble coffee
    Does the native Blackberry API allow for the modification of any messaging interface? For example, I'd like to be able to build an app that added a button at the bottom of a received message which says 'translate this'. I've heard that this kind of thing is possible using J2ME plus the native BlackBerry API. Can this be done for all kinds of messages, eg SMS, email and BB messaging? The translation aspect is not relevant, it just provides the context for the kind of feature I'm after.

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  • Where to find Python CouchDB tutorials?

    - by Cap
    I've been hunting around for a Python CouchDB tutorial and haven't been able to find anything very thorough. The only thing I've really found is this site, which I haven't gotten to work because I keep getting a 'connection refused' error when I try to create a database. Does anyone know where I would look for a tutorial to help me with this?

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  • Suggestions related to Android final application?

    - by UMMA
    dear friends, i have completed my First android application and i have deployed that application to different android based mobile phones which is working fine. my question to you is, is there iphone store like thing exists in android to upload your application by paying fee to android store or something like that.. or nothing or should i start passing my application to end users directly? any help would be appriciated.

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  • Prompt message box Linux or any system from removable device

    - by Zloy Smiertniy
    Hi all, I have some files that in windows enable me to prompt messages when a device is plugged. In case it is lost it pops up a message that says the user to please return it to he owner. Does anybody know how can I do this in Linux? I doesnt need to be a complex thing, it can be an option in a right clic menu, or a splashcreen, or anything, just to make sure that the owner of the device may be looking for it.

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  • What's the difference between PlaceHolder and <div />?

    - by DaveDev
    In an ASP.NET project I have the following HTML: <asp:PlaceHolder ID="plcTitle" runat="server"></asp:PlaceHolder> <div id="divStrapline" runat="server" /> which are populated with this code: if (this.TitlePanel != null) { plcTitle.Controls.Add(this.TitlePanel); } if (this.Strapline != null) { divStrapline.Controls.Add(this.Strapline); } Are they both the same thing? Is either better than the other? Why?

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  • Getting an argument list for a class method

    - by Chris T
    What I'd like is for this class class Car { public function __construct(Engine $engine, Make $make, Model $model) { // stuff } } Get an array that has the types needed to construct this car (Engine, Make, Model) in the order they are needed for the constructor. I'm using this for a Dependency Injection-esque thing I'm making.

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  • What pitfalls (if any) are there to learning C/C++ as a first language?

    - by thyrgle
    Hi, I first learned C++ then moved to C (I know kind of backwards) and then I found a thing called iTunes U and began watching programming classes to extend my knowledge and noticed that Stanford and MIT both did not teach C or C++ as an introduction to computer programming. Then I began to wonder why they didn't begin teaching C/C++ because I thought C/C++ was more efficient than Java (which Stanford taught) and Python (which MIT taught). Or maybe there is no particular reason?

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  • C#:Photo matching

    - by Meko
    Hi.I created app that searches via blue tooth mac addresses and compare match them with data base. But I want to try not matching Mac Addresses , I want to make it like taking photo and matching with in database. For this what should I do? Where to start? I have an DB that includes all value for students with an Mac addresses I thing instead of Mac addresses I will add only photos.But Matching Two photo is hard way?It don`t have to be like FBI using :)

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