A practical and robust method to compute the boundary of three-dimensional axis-aligned boxes

Autor: Núria Pla, Marc Vigo, Daniel Lopez Monterde, Jonàs Martínez
Přispěvatelé: Universitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics, Universitat Politècnica de Catalunya. GIE - Grup d'Informàtica a l'Enginyeria, Universitat Politècnica de Catalunya. Departament de Ciències de la Computació
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Zdroj: Scopus-Elsevier
Recercat. Dipósit de la Recerca de Catalunya
instname
Universitat Jaume I
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
GRAPP
Popis: The union of axis-aligned boxes results in a constrained structure that is advantageous for solving certain geometrical problems. A widely used scheme for solid modelling systems is the boundary representation (Brep). We present a method to obtain the B-rep of a union of axis-aligned boxes. Our method computes all boundary vertices, and additional information for each vertex that allows us to apply already existing methods to extract the B-rep. It is based on dividing the three-dimensional problem into two-dimensional boundary computations and combining their results. The method can deal with all geometrical degeneracies that may arise. Experimental results prove that our approach outperforms existing general methods, both in efficiency and robustness.)
Databáze: OpenAIRE