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Ítem Un método de compresión de mallas basado en una representación simplicial(Universidad Icesi, 2008-12-18) Navarro Newball, Andrés Adolfo; Herrera Botero, Francisco Julián; Múnera Salazar, Luis EduardoPolygonal meshes, which approximate the surface of an object, are the most common method for representing three dimensional objects. Here, in order to attain efficiency, the triangle is the most used polygon. However, the number of required triangles increases as more realism is needed in a complex form. For this reason, mesh optimization techniques have been created that keep resolution and enhances performance. This way, the polygonal mesh occupies less memory space. This paper presents a mesh compression technique which is based on mathematical topology and the simplicial representation. This technique was developed in order to compress meshes that were going to be sent through Internet.Ítem Aplicando métodos cualitativos y cuantitativos para mejorar la interfaz gráfica de usuario del simulador de cirugía WESST-OT(Universidad Icesi, 2009-08-18T20:53:57Z) Navarro Newball, Andrés Adolfo; Herrera Botero, Francisco Julián; Ríos Katto, Carlos F.; Peñeñori, Víctor M.The graphic interface (GUI) from the WESST-OT Simulator was validated using quantitative and qualitative human computer interaction (HCI) methods. In order to achieve this, surveys were applied. Also, GUI design principles were analyzed in the context of WESST-OT. Finally, the goals, objects, methods and rule selection quantitative model (GOMS) was applied. The information acquired was used to enhance WESST-OT’s GUI and at the end was validated following the same methodology.Ítem Implementación de una API para la interacción del guante P5 con entornos de realidad virtual desarrollados en Java y Java 3D(Universidad Icesi, 2008-03-27) Marín Tobón, César Augusto; Parra S., Ricardo Antonio; Herrera Botero, Francisco Julián; Navarro Newball, Andrés Adolfo; Escallón D., Antonio JoséThis paper presents a specifific API’s implementation process, this API allows the interaction of the P5 glove with virtual reality environments implemented in the programming language Java and its tool Java 3D. Also, an example program is implemented using the API. Then, a CPU and physical memory consumption tests is performed with the example. Finally, the conclusions obtained are specified.Ítem Lentes mágicas : Una herramienta de apoyo para la visualización en 3D(Universidad Icesi, 2008-03-27) Ortiz, Carlos Humberto; Popó, José Ricardo; Herrera Botero, Francisco Julián; Navarro Newball, Andrés AdolfoMagic lenses are tools which allow changing a work area according to specific selections and properties. This paper describes the work done aimed to extend the concept of magic lenses to allow seeing inside 3D models which are uploaded from an example application. In order to implement the lenses a ray tracing algorithm for image synthesis was used.