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Type: Artigo de periódico
Title: A complete and non-overlapping tracing algorithm for closed loops
Author: Wu, ST
Alessio, O
Costa, SIR
Abstract: A procedure for tracing completely closed loops given implicitly by the intersection of two regular surfaces, without resorting to the parametric domain subdivisions or resulting in are overlapping, is presented. Our primary hypothesis is that the rotation index, a global geometrical property, may be a useful complementary tool to the local differential geometrical properties for improving the efficiency of the well-known marching-based surface-surface intersection algorithms. To validate this hypothesis, we devised a novel approach for incrementally computing the rotation index of a closed plane curve given implicitly while the curve is traced. Moreover, we also proposed its integration in a marching procedure that employs adaptative circular steps. (c) 2005 Elsevier B.V. All rights reserved.
Subject: rotation index
regular closed plane curve
surface-surface intersection
marching-based algorithm
geometric modeling
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/j.cagd.2005.01.005
Date Issue: 2005
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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