Revista Romana de Interactiune Om-Calculator

17-32

Authors: Titus Felix Furtuna

Building and using tridimensional geometric models in computer applications imply great efforts in production software application. A model contains both complex geometry and properties such as color, lighting, texture, material. Unlike a 2D image, a tridimensional model brings with it a perfect precision. Today, 3D modeling software allow to build, view and modify models as if they were real objects. If one wants to view such models but in a different application context, other than modeling, the only solution remains the import and presentation of these models in the context of the main application. Thus, a primary objective of this article is to integrate the 3D scene built with specialized programs in graphical applications written in C++, C # and Java in a interactive, dynamic context using OpenGL and Java 3D. The choice of these programming languages has been determined by their market domination in the demand and supply ofcompetences. The second objective is to provide interactivity with a 3D scene objects in a C++, C# or Java application context. The article also presents a solution for the deployment and integration of 3D Studio Max scenes in C# applications using OpenGL.

53-64

Authors: Stefan Trausan-Matu, Mihai Dascalu, Traian Eugen Rebedea, Alexandru Gartner

The paper presents the details and the history of building a corpus of instant messenger (chat) conversations with multiple participants used for Computer-Supported Collaborative Learning. Two XML annotation schemas are presented. The first is the basic one in the corpus. It is automatically generated starting from various formats in which chats are exported. The second schema extends the first one. It is generated by an editor for manually annotating the chats. Details of the editor are included. The corpus may be used in different purposes: machine learning, analysis and statistics computation.