Els gràfics amb ordinador

Alguns algorismes que es fan servir per fer gràfics, així com alguns exemples de complexitat creixent per representar algunes figures geomètriques planes i tridimensional

MKtree: generation and simulations

The problem to represent very complex systems has been studied by several authors, obtaining solutions based on different data structures. In this paper, a K dimensional tree (Multirresolution Kdtree, MKtree) is introduced. The MKtree represents a hierarchical subdivision of the scene objects that guarantees a minimum space overlap between node regions. MKtrees are useful for collision detection and for time-critical rendering in very large environments requiring external memory storage. Examples in ship design applications are described.Postprint (published version

Ciencia, tecnología y transferencia

La universidad ha dejado de ser un agente puramente formativo y de transmisión de conocimientos para convertirse en generador de ideas y creador de aplicaciones y tecnologías. En España, sin embargo, la necesaria transferencia entre la academia y la empresa mantiene todavía un rumbo errático. En opinión del autor, falta una apuesta decidida al estilo de la efectuada en países de nuestro entorno. = Universities are no longer mere training and knowledge transfer agents; they have become a generator of ideas and creator of applications and technologies. In Spain, however, the required knowledge transfer between the academic and business worlds is following an erratic course. In the opinion of the author, Spain is in the need of clear attempts in this direction, such as those its neighboring countries have performed

El transport de productes forestals a través dels ports secundaris de Mallorca, 1913-1964

Abstract not availabl

La red ferroviaria de Mallorca y su incidencia en el desarrollo insular

Abstract not availabl

Composició del trànsit de les carreteres mallorquines (1980-1988) per tipus de vehicles

Abstract not availabl

Adaptive transfer functions: improved multiresolution visualization of medical models

The final publication is available at Springer via http://dx.doi.org/10.1007/s00371-016-1253-9Medical datasets are continuously increasing in size. Although larger models may be available for certain research purposes, in the common clinical practice the models are usually of up to 512x512x2000 voxels. These resolutions exceed the capabilities of conventional GPUs, the ones usually found in the medical doctors’ desktop PCs. Commercial solutions typically reduce the data by downsampling the dataset iteratively until it fits the available target specifications. The data loss reduces the visualization quality and this is not commonly compensated with other actions that might alleviate its effects. In this paper, we propose adaptive transfer functions, an algorithm that improves the transfer function in downsampled multiresolution models so that the quality of renderings is highly improved. The technique is simple and lightweight, and it is suitable, not only to visualize huge models that would not fit in a GPU, but also to render not-so-large models in mobile GPUs, which are less capable than their desktop counterparts. Moreover, it can also be used to accelerate rendering frame rates using lower levels of the multiresolution hierarchy while still maintaining high-quality results in a focus and context approach. We also show an evaluation of these results based on perceptual metrics.Peer ReviewedPostprint (author's final draft

Evolució dels centres mitjans ponderats de població i habitatge a Mallorca, 1950-1986

Abstract not availabl