.NET/Java PDF, Tiff, Barcode SDK Library

In the AnimatedModelData class, the bonesBindPose attribute stores an array containing the local configuration (related to its parent) of each skeleton s bone in its bind pose. The bonesInverseBindPose attribute stores an array containing the inverse absolute configuration (absolute meaning defined in world 3D space and not related to its ancestor) of each skeleton s bone in its bind pose, and the bonesParent attribute stores the index of the parent of each bone. Finally, the animations attribute stores the model s animations. You use the inverse absolute configuration of a bone to transform the vertices that are linked to this bone from coordinate system of the model to the coordinate system of this bone, needed to animate (transform) the vertices. We ll explain this process in more detail in the Skeletal Animation Equations section later in this chapter.

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The Spring HTTP invoker client establishes an HTTP connection to the remote server, transmits the encoded service call, and awaits a response from the server. The client creates a proxy object to represent the remote service that implements the supplied interface

Now you are ready to create your animated model pipeline. You ll create a new model processor, by extending the default XNA model processor. You ll use this new processor to receive the output generated by an importer, extract the skeleton and animations, and store them as an AnimatedModelData object.

(corresponding to the remote service interface). The class used to instantiate these proxy objects behaves as a standard Spring factory bean, so we can use it to populate other beans properties with instances of the service, or obtain implementations directly from the Spring context. Listing 9-8 shows the configuration of the Spring HTTP invoker client. We define an HttpInvokerProxyFactoryBean bean and supply it with the path to remote service and the interface to implement.

Note You might think, if you ve been reading carefully up until now, Wait, don t I need to code a new

importer too There s no need to create a new importer, as the default importers for X and FBX files also extract the animation data.

<bean id="invokerUserAccountService" class= "org.springframework.remoting.httpinvoker.HttpInvokerProxyFactoryBean"> <property name="serviceUrl" value="http://localhost:8080/timesheet/invoker/userAccountService"/> <property name="serviceInterface" value="com.apress.timesheets.service.UserAccountService"/> </bean> Listing 9-9 shows the usage of the factory bean. Here we are obtaining a bean instance from the application context by calling the context s getBean method, but we could alternatively inject a reference to the factory into any UserAccountService bean property.

For the new model processor, create a new Content Pipeline Extension Library project named AnimatedModelProcessorWin. The Content Pipeline Extension Library project comes with a new content processor class, and automatically adds the Content Pipeline assembly (Microsoft.Xna.Framework.Content.Pipeline) to the project. Because you re going to use the AnimatedModelContentWin library (that you created in the previous section) to store the animation data, you need to add its assembly to the project, too. Following is the default code for the new content processor class that is created by the Content Pipeline Extension project: [ContentProcessor] public class ContentProcessor1 : ContentProcessor<TInput, TOutput> { public override TOutput Process(TInput input, ContentProcessorContext context) { // TODO throw new NotImplementedException(); } } The default content processor class extends the ContentProcessor class, which is the base class for any Content Pipeline processor, and it s used to process an object of the type TInput, outputting a new object of the type TOutput. But remember that you aren t interested in creating a new content processor, but rather in extending the features of an existing one. Thus, you must extend an existing content processor instead of the ContentProcessor class. In this case,

final UserAccountService service = (UserAccountService)ctx.getBean("invokerUserAccountService"); final List<UserAccount> users = service.listUsers(); System.out.println("(Invoker) User List"); System.out.println("==================="); for( final UserAccount user : users ) { System.out.println(user.getAccountName()); }