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  • C# OpenGL problem with animation

    - by user3696303
    there is a program that simulates a small satellite and requires that a rotation animation of the satellite along the three axes. But when you try to write an animation problem during compilation: the program simply closes (shutdown occurs when swapbuffers, mainloop, redisplay), when you write the easiest programs have the same problem arose. Trying to catch exception by try-catch but here is not exception. How to solve this? I suffer with this a few days. Work in c# visual studio 2008 framework namespace WindowsFormsApplication6 { public partial class Form1 : Form { public Form1() { try { InitializeComponent(); AnT1.InitializeContexts(); } catch(Exception) { Glut.glutDisplayFunc(Draw); Glut.glutTimerFunc(50, Timer, 0); Glut.glutMainLoop(); } } void Timer(int Unused) { Glut.glutPostRedisplay(); Glut.glutTimerFunc(50, Timer, 0); } private void AnT1_Load(object sender, EventArgs e) { Glut.glutInit(); Glut.glutInitDisplayMode(Glut.GLUT_RGB | Glut.GLUT_DOUBLE | Glut.GLUT_DEPTH); Gl.glClearColor(255, 255, 255, 1); Gl.glViewport(0, 0, AnT1.Width, AnT1.Height); Gl.glMatrixMode(Gl.GL_PROJECTION); Gl.glLoadIdentity(); Glu.gluPerspective(45, (float)AnT1.Width / (float)AnT1.Height, 0.1, 200); Gl.glMatrixMode(Gl.GL_MODELVIEW); Gl.glLoadIdentity(); Gl.glEnable(Gl.GL_DEPTH_TEST); Gl.glClear(Gl.GL_COLOR_BUFFER_BIT | Gl.GL_DEPTH_BUFFER_BIT); Gl.glPushMatrix(); double xy = 0.2; Gl.glTranslated(xy, 0, 0); xy += 0.2; Draw(); Glut.glutSwapBuffers(); Glut.glutPostRedisplay(); Gl.glPushMatrix(); Draw(); Gl.glPopMatrix(); } void Draw() { Gl.glLoadIdentity(); Gl.glColor3f(0.502f, 0.502f, 0.502f); Gl.glTranslated(-1, 0, -6); Gl.glRotated(95, 1, 0, 0); Glut.glutSolidCylinder(0.7, 2, 60, 60); Gl.glLoadIdentity(); Gl.glColor3f(0, 0, 0); Gl.glTranslated(-1, 0, -6); Gl.glRotated(95, 1, 0, 0); Glut.glutWireCylinder(0.7, 2, 20, 20); } } }

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  • The Best Articles for Using and Customizing Windows 8

    - by Lori Kaufman
    Now that Windows 8 Enterprise is available to the public as a 90-day evaluation and Windows 8 Pro is available for Microsoft TechNet subscribers, we decided to collect links to the Windows 8 articles we’ve published since the release of the Developer Preview. How To Switch Webmail Providers Without Losing All Your Email How To Force Windows Applications to Use a Specific CPU HTG Explains: Is UPnP a Security Risk?

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  • Serialize plain clean XML in .NET

    - by Jon Canning
    public static string ToXml<T>(this T obj) where T : class         {             using (var stringWriter = new StringWriter())             {                 var xmlWriterSettings = new XmlWriterSettings { OmitXmlDeclaration = true };                 using (var xmlWriter = XmlWriter.Create(stringWriter, xmlWriterSettings))                 {                     var xmlSerializerNamespaces = new XmlSerializerNamespaces(new[] { XmlQualifiedName.Empty });                     var xmlSerializer = new XmlSerializer(typeof(T));                     xmlSerializer.Serialize(xmlWriter, obj, xmlSerializerNamespaces);                 }                 return stringWriter.ToString();             }         }

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  • StarterSTS v1.5 CTP

    - by Your DisplayName here!
    I just uploaded a new version of StarterSTS to Codeplex. There have been some dramatic changes since the last public version, so any feedback would be appreciated. This new version is now a .NET 4.0 web application project, and includes all the necessary plumbing and configuration to deploy StarterSTS to Azure. In fact it is just a configuration change to choose between the Azure and on-premise version. Download: http://startersts.codeplex.com/releases/view/52214 More info: Moving StarterSTS to the (Azure) Cloud

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  • Oracle Enhances Cloud Management with New Third Generation Release of Oracle Enterprise Manager 12c

    - by Patrick Rood
    Introduces Advancements in Cloud Lifecycle and Operations Management and Expanded Partner Ecosystem Cloud adoption is on the rise across many industries as organizations are seeking the agility benefits inherent in cloud computing. However, private and public cloud service providers are not able to take full advantage of cloud because of inefficiencies in IT management. Oracle Enterprise Manager 12c Release 3 addresses these challenges with new enhancements for managing infrastructure, middleware, and applications, allowing IT service providers to be more agile while further reducing the costs and complexity of their cloud and enterprise IT environments. Read the full press release here. 

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  • Enum types, FlagsAttribute & Zero value – Part 2

    - by nmgomes
    In my previous post I wrote about why you should pay attention when using enum value Zero. After reading that post you are probably thinking like Benjamin Roux: Why don’t you start the enum values at 0x1? Well I could, but doing that I lose the ability to have Sync and Async mutually exclusive by design. Take a look at the following enum types: [Flags] public enum OperationMode1 { Async = 0x1, Sync = 0x2, Parent = 0x4 } [Flags] public enum OperationMode2 { Async = 0x0, Sync = 0x1, Parent = 0x2 } To achieve mutually exclusion between Sync and Async values using OperationMode1 you would have to operate both values: protected void CheckMainOperarionMode(OperationMode1 mode) { switch (mode) { case (OperationMode1.Async | OperationMode1.Sync | OperationMode1.Parent): case (OperationMode1.Async | OperationMode1.Sync): throw new InvalidOperationException("Cannot be Sync and Async simultaneous"); break; case (OperationMode1.Async | OperationMode1.Parent): case (OperationMode1.Async): break; case (OperationMode1.Sync | OperationMode1.Parent): case (OperationMode1.Sync): break; default: throw new InvalidOperationException("No default mode specified"); } } but this is a by design constraint in OperationMode2. Why? Simply because 0x0 is the neutral element for the bitwise OR operation. Knowing this singularity, replacing and simplifying the previous method, you get: protected void CheckMainOperarionMode(OperationMode2 mode) { switch (mode) { case (OperationMode2.Sync | OperationMode2.Parent): case (OperationMode2.Sync): break; case (OperationMode2.Parent): default: break; } This means that: if both Sync and Async values are specified Sync value always win (Zero is the neutral element for bitwise OR operation) if no Sync value specified, the Async method is used. Here is the final method implementation: protected void CheckMainOperarionMode(OperationMode2 mode) { if (mode & OperationMode2.Sync == OperationMode2.Sync) { } else { } } All content above prove that Async value (0x0) is useless from the arithmetic perspective, but, without it we lose readability. The following IF statements are logically equals but the first is definitely more readable: if (OperationMode2.Async | OperationMode2.Parent) { } if (OperationMode2.Parent) { } Here’s another example where you can see the benefits of 0x0 value, the default value can be used explicitly. <my:Control runat="server" Mode="Async,Parent"> <my:Control runat="server" Mode="Parent">

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  • JSR 355 Final Release, and moves JCP to version 2.9

    - by heathervc
    JSR 355, JCP EC Merge, passed the JCP EC Final Approval Ballot on 13 August 2012, with 14 Yes votes, 1 abstain (1 member did not vote) on the SE/EE EC, and 12 yes votes (2 members were not eligible to vote) on the ME EC.  JSR 355 posted a Final Release this week, moving the JCP program version to JCP 2.9.  The transition to a merged EC will happen after the 2012 EC Elections, as defined in the Appendix B of the JCP (pasted below), and the EC will operate under the new EC Standing Rules. In the previous version (2.8) of this Process Document there were two separate Executive Committees, one for Java ME and one for Java SE and Java EE combined. The single Executive Committee described in this version of the Process Document will be implemented through the following process: The 2012 annual elections will be held as defined in JCP 2.8, but candidates will be informed that if they are elected their term will be for only a single year, since all candidates must stand for re-election in 2013. Immediately after the 2012 election the two ECs will be merged. Oracle and IBM's second seats will be eliminated, resulting in a single EC with 30 members. All subsequent JSR ballots (even for in-progress JSRs) will then be voted on by the merged EC. For the 2013 annual elections three Ratified and two Elected Seats will be eliminated, thereby reducing the EC to 25 members. All 25 seats will be up for re-election in 2013. Members elected in 2013 will be ranked to determine whether their initial term will be one or two years. The 50% of Ratified and 50% of Elected members who receive the most votes will serve an initial two-year term, while all others will serve an initial one year term. All members elected in 2014 and subsequently will serve a two-year term. For clarity, note that the provisions specified in this version of the Process Document regarding a merged EC will apply to subsequent ballots on all existing JSRs, whether or not the Spec Leads of those JSRs chose to adopt this version of the Process Document in its entirety. <end of Appendix> Also of note:  the materials and minutes from the July EC meeting and the June EC Meeting are now available--following the July EC Meeting, Samsung and SK Telecom lost their EC seats. The June EC meeting also had a public portion--the audio from the public portion of the EC meeting are now posted online.  For Spec Leads there is also the recording of the EG Nominations call.

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  • How to render 3D models as SVG vector graphics? (planar projection)

    - by Jan
    This image (original SVG from Wikipedia, public domain) was created using the following procedure: Create a 3D model in Google sketchup Export as PDF Import in Inkscape Save as SVG Is there a straightforward way to produce such a SVG with software that runs (natively) on Ubuntu? (Pantograph, a Blender plugin, has only broken download links; VRM, another Blender plugin works with Belnder 2.4x, but not with Blender 2.6x.)

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  • Is it OK to use sample code from blogs, GitHub, etc... in commercial applications?

    - by eterps
    When searching the web for a solution to a particular problem, I often find a perfect solution posted on someone's blog, or in a public repository (GitHub, Google Code). Most of the time, the code has no copyright information, nor does the author mention any sort of attribution rules. I'm pretty sure short snippets are fine, but what if I copy a handful of classes verbatim (again, no copyright notices, TOS, attribution requests, etc...)? Am I under any legal obligation to the original author?

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  • Problems uploading package to launchpad

    - by user74513
    I'm having a lot of problems uploading my showdown project to a PPA. I've setup correctly PGP keys and my public ssh key to launchpad. I've packaged with debuild my C++ project, producing a source package lintian gave me only those two warnings that I think are ok for the showdown rules: W: massren source: native-package-with-dash-version W: massren source: binary-nmu-debian-revision-in-source 1.0-0extras12.04.1~ppa2 Producing a binary package works to and the package installs without problem on my ubuntu 12.04 machine, I only have a few more lintian warnings about the fact I'm installing in /opt/extras.ubuntu.com/ I'm uploading with: dput ppa:gabrielegreco/massren massren_1.0-0extras12.04.1~ppa2_source.changes When I upload with dput I have no errors, signatures seems ok, and public key seems accepted to (since the upload goes on without asking passwords...): dput ppa:gabrielegreco/massren massren_1.0-0extras12.04.1~ppa2_source.changes Checking signature on .changes gpg: Signature made Mon 02 Jul 2012 10:00:38 AM CEST using RSA key ID 49982576 gpg: Good signature from "Gabriele Greco " Good signature on /home/gabry/no-backup/massren_1.0-0extras12.04.1~ppa2_source.changes. Checking signature on .dsc gpg: Signature made Mon 02 Jul 2012 10:00:33 AM CEST using RSA key ID 49982576 gpg: Good signature from "Gabriele Greco " Good signature on /home/gabry/no-backup/massren_1.0-0extras12.04.1~ppa2.dsc. Uploading to ppa (via ftp to ppa.launchpad.net): Uploading massren_1.0-0extras12.04.1~ppa2.dsc: done. Uploading massren_1.0-0extras12.04.1~ppa2.tar.gz: done. Uploading massren_1.0-0extras12.04.1~ppa2_source.changes: done. Successfully uploaded packages. At the moment I'm not receiving responses from launchpad site, but the upload does not show in the ppa page. Previous attempts gave me response e-mails with different kind of errors: File massren_1.0-0extras12.04.1~ppa1.tar.gz mentioned in the changes has a checksum mismatch. 1503fa155226cbc4aba2f8ba9aa11a75 != 294a5e0caf3fe95b0b007a10766e9672 File massren_1.0-0extras12.04.1~ppa1.tar.gz mentioned in the changes has a checksum mismatch. 1503fa155226cbc4aba2f8ba9aa11a75 != 294a5e0caf3fe95b0b007a10766e9672 Or more cryptic: GPG verification of /srv/launchpad.net/ppa-queue/incoming/upload-ftp-20120629-163320-001135/~gabrielegreco/massren/ubuntu/massren_1.0-0extras12.04.1~ppa1.dsc failed: Verification failed 3 times: ["(7, 58, u'No data')", "(7, 58, u'No data')", "(7, 58, u'No data')"] Further error processing not possible because of a critical previous error. Any idea how can I solve this problem? I'm new to ubuntu packaging, so I may miss some step... There is an alternative to dput (aka manual upload)?

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  • Heart Bleed Remains a Problem

    - by TATWORTH
    Originally posted on: http://geekswithblogs.net/TATWORTH/archive/2014/06/04/heart-bleed-remains-a-problem.aspxPlease not the report at http://www.vipreantivirus.com/newsletters/2014/index.html by the Vipre team that Heart Bleed remains a problem. Very significantly the report states: “Graham concluded that roughly 318,000 servers were still vulnerable to Heartbleed in May -- a figure that is about half the number of vulnerable servers he found when Heartbleed first became public.”

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  • What is UEFI and Secure Boot? How do they affect Ubuntu?

    - by Oxwivi
    Discussions and reports about UEFI and Secure Boot has cropped up in many Linux circles, but can anyone summarize it's impacts on Ubuntu and how it affects the general users? I know that UEFI and Secure Boot are separate (not interchangeable), with Secure Boot being a part of the Unified Extensible Firmware Interface BIOS specification. PS I do know how it affects Ubuntu, this question is for the benefit of public knowledge.

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  • Dynamic Document Template

    - by ell
    I would like to create a "C++ Class" document template, I know you can make static ones by putting them into ~/Templates, but I would like to be able for the content to change according to the file name on creation, for example, using a template like such (pseudocode): #ifndef $(filename)_HPP_INCLUDED #define $(filename)_HPP_INCLUDED class $(filename) { public: } #endif $(filename)_HPP_INCLUDED Is this possible? If so, how can I do it? Thanks in advance, ell.

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  • How to Plug a Small Hole in NetBeans JSF (Join Table) Code Generation

    - by MarkH
    I was asked recently to provide an assist with designing and building a small-but-vital application that had at its heart some basic CRUD (Create, Read, Update, & Delete) functionality, built upon an Oracle database, to be accessible from various locations. Working from the stated requirements, I fleshed out the basic application and database designs and, once validated, set out to complete the first iteration for review. Using SQL Developer, I created the requisite tables, indices, and sequences for our first run. One of the tables was a many-to-many join table with three fields: one a primary key for that table, the other two being primary keys for the other tables, represented as foreign keys in the join table. Here is a simplified example of the trio of tables: Once the database was in decent shape, I fired up NetBeans to let it have first shot at the code. NetBeans does a great job of generating a mountain of essential code, saving developers what must be millions of hours of effort each year by building a basic foundation with a few clicks and keystrokes. Lest you think it (or any tool) can do everything for you, however, occasionally something tosses a paper clip into the delicate machinery and makes you open things up to fix them. Join tables apparently qualify.  :-) In the case above, the entity class generated for the join table (New Entity Classes from Database) included an embedded object consisting solely of the two foreign key fields as attributes, in addition to an object referencing each one of the "component" tables. The Create page generated (New JSF Pages from Entity Classes) worked well to a point, but when trying to save, we were greeted with an error: Transaction aborted. Hmm. A quick debugger session later and I'd identified the issue: when trying to persist the new join-table object, the embedded "foreign-keys-only" object still had null values for its two (required value) attributes...even though the embedded table objects had populated key attributes. Here's the simple fix: In the join-table controller class, find the public String create() method. It will look something like this:     public String create() {        try {            getFacade().create(current);            JsfUtil.addSuccessMessage(ResourceBundle.getBundle("/Bundle").getString("JoinEntityCreated"));            return prepareCreate();        } catch (Exception e) {            JsfUtil.addErrorMessage(e, ResourceBundle.getBundle("/Bundle").getString("PersistenceErrorOccured"));            return null;        }    } To restore balance to the force, modify the create() method as follows (changes in red):     public String create() {         try {            // Add the next two lines to resolve:            current.getJoinEntityPK().setTbl1id(current.getTbl1().getId().toBigInteger());            current.getJoinEntityPK().setTbl2id(current.getTbl2().getId().toBigInteger());            getFacade().create(current);            JsfUtil.addSuccessMessage(ResourceBundle.getBundle("/Bundle").getString("JoinEntityCreated"));            return prepareCreate();        } catch (Exception e) {            JsfUtil.addErrorMessage(e, ResourceBundle.getBundle("/Bundle").getString("PersistenceErrorOccured"));            return null;        }    } I'll be refactoring this code shortly, but for now, it works. Iteration one is complete and being reviewed, and we've met the milestone. Here's to happy endings (and customers)! All the best,Mark

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  • What is the difference between "data hiding" and "encapsulation"?

    - by Software Engeneering Learner
    I'm reading "Java concurrency in practice" and there is said: "Fortunately, the same object-oriented techniques that help you write well-organized, maintainable classes - such as encapsulation and data hiding -can also help you create thread-safe classes." The problem #1 - I never heard about data hiding and don't know what it is. The problem #2 - I always thought that encapsulation is using private vs public, and is actually the data hiding. Can you please explain what data hiding is and how it differs from encapsulation?

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  • Le saphir pourrait être le nouveau matériau pour fabriquer les écrans de téléphones, Apple, Samsung et LG plancheraient sur le sujet

    Quand Apple veut mettre à la disposition du grand public des écrans de smartphones fabriqués en verre saphir une rumeur dit que Samsung et LG sont intéressés à leur tour par le saphirLes écrans des mobiles se brisent souvent à certains chocs ou par une mauvaise chute. Pour le cas des smartphones depuis l'iPhone V1 en 2007, ces écrans sont faits à base du Gorilla Glass de Corning, une matière qui n'est pas non plus résistante aux chocs. C'est vraiment dommage pour les utilisateurs si l'on se réfère...

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  • Windows 8 App Wish List

    - by Tim Murphy
    As I have been using Windows 8 more some of them apps that come with the system have been missing some features that I would like to see.  So Microsoft, here is my wish list for some new features. Skydrive Copy files from one folder to another in Skydrive Get public and read only URLs of a file   OneNote MX Print a page   Mail Accept/Reject appointments Sort inbox Search inbox (use the search charm) Print email   Store Keyword search (use the search charm)   del.icio.us Tags: Windows 8

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  • Lookup for data sources in a query

    - by DAXShekhar
    public static str lookupDatasourceOfQuery(Query _query) {     Query                   query = _query;     QueryBuildDataSource    qbds;     int                     dsIterator;     Map                     map = new Map(Types::String, Types::String);     ;     for (dsIterator = 1; dsIterator <= query.dataSourceCount(); dsIterator++)     {         qbds = query.dataSourceNo(dsIterator);         map.insert(qbds.name(), qbds.name());     }     return pickList(map, "Data source", "Data sources"); }

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  • Problem Loading a DLL (4 replies)

    I'm having some issues now that I can't see what I'm doing wrong. I'm Pinvoking a non WindowsAPI DLL (I mean, not a dll provided on windows). Pinvoking LoadLibrary, I can get a IntPtr to any WindowsAPI DLL, but never I can get a pointer to my DLL. The code I'm using is very simple, like this one: [DllImport(&quot;kernel32.dll&quot;, SetLastError true)] public static extern IntPtr LoadLibrary(); static void ...

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  • Box2D Difference Between WorldCenter and Position

    - by Free Lancer
    So this problem has been brothering for a couple of days now. First off, what is the difference between say Body.getWorldCenter() and Body.getPosition(). I heard that WorldCenter might have to do with the center of gravity or something. Second, When I create a Box2D Body for a sprite the Body is always at the lower left corner. I check it by printing a Rectangle of 1 pixel around the box.getWorldCenter(). From what I understand the Body should be in the center of the Sprite and its bounding box should wrap around the Sprite, correct? Here's an image of what I mean (The Sprite is Red, Body Blue): Here's some code: Body Creator: public static Body createBoxBody( final World pPhysicsWorld, final BodyType pBodyType, final FixtureDef pFixtureDef, Sprite pSprite ) { float pRotation = 0; float pCenterX = pSprite.getX() + pSprite.getWidth() / 2; float pCenterY = pSprite.getY() + pSprite.getHeight() / 2; float pWidth = pSprite.getWidth(); float pHeight = pSprite.getHeight(); final BodyDef boxBodyDef = new BodyDef(); boxBodyDef.type = pBodyType; //boxBodyDef.position.x = pCenterX / Constants.PIXEL_METER_RATIO; //boxBodyDef.position.y = pCenterY / Constants.PIXEL_METER_RATIO; boxBodyDef.position.x = pSprite.getX() / Constants.PIXEL_METER_RATIO; boxBodyDef.position.y = pSprite.getY() / Constants.PIXEL_METER_RATIO; Vector2 v = new Vector2( boxBodyDef.position.x * Constants.PIXEL_METER_RATIO, boxBodyDef.position.y * Constants.PIXEL_METER_RATIO ); Gdx.app.log("@Physics", "createBoxBody():: Box Position: " + v); // Temporary Box shape of the Body final PolygonShape boxPoly = new PolygonShape(); final float halfWidth = pWidth * 0.5f / Constants.PIXEL_METER_RATIO; final float halfHeight = pHeight * 0.5f / Constants.PIXEL_METER_RATIO; boxPoly.setAsBox( halfWidth, halfHeight ); // set the anchor point to be the center of the sprite pFixtureDef.shape = boxPoly; final Body boxBody = pPhysicsWorld.createBody(boxBodyDef); Gdx.app.log("@Physics", "createBoxBody():: Box Center: " + boxBody.getPosition().mul(Constants.PIXEL_METER_RATIO)); boxBody.createFixture(pFixtureDef); boxBody.setTransform( boxBody.getWorldCenter(), MathUtils.degreesToRadians * pRotation ); boxPoly.dispose(); return boxBody; } Making the Sprite: public Car( Texture texture, float pX, float pY, World world ) { super( "Car" ); mSprite = new Sprite( texture ); mSprite.setSize( mSprite.getWidth() / 6, mSprite.getHeight() / 6 ); mSprite.setPosition( pX, pY ); mSprite.setOrigin( mSprite.getWidth()/2, mSprite.getHeight()/2); FixtureDef carFixtureDef = new FixtureDef(); // Set the Fixture's properties, like friction, using the car's shape carFixtureDef.restitution = 1f; carFixtureDef.friction = 1f; carFixtureDef.density = 1f; // needed to rotate body using applyTorque mBody = Physics.createBoxBody( world, BodyDef.BodyType.DynamicBody, carFixtureDef, mSprite ); }

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  • What are the tools, programming languages and development processes of AAA games?

    - by Pan.student
    Only thing I am able to find about "big" games like ac, hl, bf, cod is engine used to run the game. But I am interested in what software development methodology, programming and scripting languages were used. As well as tools for creating models, music, animations and other media. Further, were the team team organisations and so on for a certain game (or game series). Is this information even available to the public?

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  • November EC Meeting Minutes and Materials

    - by Heather VanCura
    The JCP EC meeting minutes and materials from the EC only portion of the 20 November meeting are now available on the EC Meeting Summaries page. Agenda: Part 1: Private EC meeting at 2:00 pm PST [PMO Presentation] Roll call Agenda review EC meeting attendance report Personnel changes EC stats Election results 2013 meeting planning JSR 358 Expert Group session Part 2: Public EC meeting at 3:00 pm PST [PMO presentation] Election results and the EC merge JSR 358 status report JCP 2.8 status update and community audit program - Heather VanCura Discussion/Q&A

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  • Bullet Physics implementing custom MotionState class

    - by Arosboro
    I'm trying to make my engine's camera a kinematic rigid body that can collide into other rigid bodies. I've overridden the btMotionState class and implemented setKinematicPos which updates the motion state's tranform. I use the overridden class when creating my kinematic body, but the collision detection fails. I'm doing this for fun trying to add collision detection and physics to Sean O' Neil's Procedural Universe I referred to the bullet wiki on MotionStates for my CPhysicsMotionState class. If it helps I can add the code for the Planetary rigid bodies, but I didn't want to clutter the post. Here is my motion state class: class CPhysicsMotionState: public btMotionState { protected: // This is the transform with position and rotation of the camera CSRTTransform* m_srtTransform; btTransform m_btPos1; public: CPhysicsMotionState(const btTransform &initialpos, CSRTTransform* srtTransform) { m_srtTransform = srtTransform; m_btPos1 = initialpos; } virtual ~CPhysicsMotionState() { // TODO Auto-generated destructor stub } virtual void getWorldTransform(btTransform &worldTrans) const { worldTrans = m_btPos1; } void setKinematicPos(btQuaternion &rot, btVector3 &pos) { m_btPos1.setRotation(rot); m_btPos1.setOrigin(pos); } virtual void setWorldTransform(const btTransform &worldTrans) { btQuaternion rot = worldTrans.getRotation(); btVector3 pos = worldTrans.getOrigin(); m_srtTransform->m_qRotate = CQuaternion(rot.x(), rot.y(), rot.z(), rot.w()); m_srtTransform->SetPosition(CVector(pos.x(), pos.y(), pos.z())); m_btPos1 = worldTrans; } }; I add a rigid body for the camera: // Create rigid body for camera btCollisionShape* cameraShape = new btSphereShape(btScalar(5.0f)); btTransform startTransform; startTransform.setIdentity(); // forgot to add this line CVector vCamera = m_srtCamera.GetPosition(); startTransform.setOrigin(btVector3(vCamera.x, vCamera.y, vCamera.z)); m_msCamera = new CPhysicsMotionState(startTransform, &m_srtCamera); btScalar tMass(80.7f); bool isDynamic = (tMass != 0.f); btVector3 localInertia(0,0,0); if (isDynamic) cameraShape->calculateLocalInertia(tMass,localInertia); btRigidBody::btRigidBodyConstructionInfo rbInfo(tMass, m_msCamera, cameraShape, localInertia); m_rigidBody = new btRigidBody(rbInfo); m_rigidBody->setCollisionFlags(m_rigidBody->getCollisionFlags() | btCollisionObject::CF_KINEMATIC_OBJECT); m_rigidBody->setActivationState(DISABLE_DEACTIVATION); This is the code in Update() that runs each frame: CSRTTransform srtCamera = CCameraTask::GetPtr()->GetCamera(); Quaternion qRotate = srtCamera.m_qRotate; btQuaternion rot = btQuaternion(qRotate.x, qRotate.y, qRotate.z, qRotate.w); CVector vCamera = CCameraTask::GetPtr()->GetPosition(); btVector3 pos = btVector3(vCamera.x, vCamera.y, vCamera.z); CPhysicsMotionState* cameraMotionState = CCameraTask::GetPtr()->GetMotionState(); cameraMotionState->setKinematicPos(rot, pos);

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  • Using Dynamic LINQ to get a filter for my Web API

    - by Espo
    We are considering using the Dynamic.CS linq-sample included in the "Samples" directory of visual studio 2008 for our WebAPI project to allow clients to query our data. The interface would be something like this (In addition to the normal GET-methods): public HttpResponseMessage List(string filter = null); The plan is to use the dynamic library to parse the "filter"-variable and then execute the query agains the DB. Any thoughts if this is a good idea? Is it a security problem?

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  • Key Promoter for NetBeans

    - by Geertjan
    Whenever a menu item or toolbar button is clicked, it would be handy if NetBeans were to tell you 'hey, did you know, you can actually do this via the following keyboard shortcut', if a keyboard shortcut exists for the invoked action. After all, ultimately, a lot of developers would like to do everything with the keyboard and a key promoter feature of this kind is a helpful tool in learning the keyboard shortcuts related to the menu items and toolbar buttons you're clicking with your mouse. Above, you see the balloon message that appears for each menu item and toolbar button that you click and, below, you can see a list of all the actions that have been logged in the Notifications window. That happens automatically when an action is invoked (assuming the plugin described in this blog entry is installed), showing the display name of the action, together with the keyboard shortcut, which is presented as a hyperlink which, when clicked, re-invokes the action (which might not always be relevant, especially for context-sensitive actions, though for others it is quite useful, e.g., reopen the New Project wizard). And here's all the code. Notice that I'm hooking into the 'uigestures' functionality, which was suggested by Tim Boudreau, and I have added my own handler, which was suggested by Jaroslav Tulach, which gets a specific parameter from each new log entry handled by the 'org.netbeans.ui.actions' logger, makes sure that the parameter actually is an action, and then gets the relevant info from the action, if the relevant info exists: @OnShowingpublic class Startable implements Runnable {    @Override    public void run() {        Logger logger = Logger.getLogger("org.netbeans.ui.actions");        logger.addHandler(new StreamHandler() {            @Override            public void publish(LogRecord record) {                Object[] parameters = record.getParameters();                if (parameters[2] instanceof Action) {                    Action a = (Action) parameters[2];                    JMenuItem menu = new JMenuItem();                    Mnemonics.setLocalizedText(                            menu,                             a.getValue(Action.NAME).toString());                    String name = menu.getText();                    if (a.getValue(Action.ACCELERATOR_KEY) != null) {                        String accelerator = a.getValue(Action.ACCELERATOR_KEY).toString();                        NotificationDisplayer.getDefault().notify(                                name,                                 new ImageIcon("/org/nb/kp/car.png"),                                 accelerator,                                 new ActionListener() {                            @Override                            public void actionPerformed(ActionEvent e) {                                a.actionPerformed(e);                            }                        });                    }                }            }        });    }} Indeed, inspired by the Key Promoter in IntelliJ IDEA. Interested in trying it out? If there's interest in it, I'll put it in the NetBeans Plugin Portal.

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