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id sigradi2007_af45
authors Valle Martínez, Yusnier
year 2007
title Visualization of land surfaces in three dimensions [Visualización de superficies de terrenos en tres dimensiones]
source SIGraDi 2007 - [Proceedings of the 11th Iberoamerican Congress of Digital Graphics] México D.F. - México 23-25 October 2007, pp. 257-260
summary This paper presents a new technique based on the combination of the quadtree spatial data structure and the bitree subdivision for real-time visualization of height fields. We propose to model the surface by means of quadtrees, and to extract the multiresolution triangulation to visualize by means of the bitree criterion to each quadrant of the structure. This combination, at the same time that considerably reduces the amount of polygons to send to the graphical system for its visualization, eliminates the limitation imposed by restricted quadtrees on the levels of division between neighboring quadrants in the structure.
keywords Quadtrees; bitrees; triangulation; multiresolution; visualization
series SIGRADI
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