Exploració per autor "Joan Arinyo, Robert"
Ara es mostren els items 44-63 de 82
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h-graphs : a new representation for tree decompositions of graphs
Hidalgo Garcia, Marta; Joan Arinyo, Robert (2015-10-01)
Article
Accés obertIn geometric constraint solving, 2D well constrained geometric problems can be abstracted as Laman graphs. If the graph is tree decomposable, the constraint-based geometric problem can be solved by a Decomposition-Recombination ... -
h-graphs: A new representation for tree decompositions of graphs
Hidalgo Garcia, Marta; Joan Arinyo, Robert (2014)
Report de recerca
Accés obertIn geometric constraint solving, well constrained geometric problems can be abstracted as Laman graphs. If the graph is tree decomposable, the constraint-based geometric problem can be solved by a Decomposition-Recombination ... -
Implementación de un algoritmo vectorial para la eliminación de partes ocultas en escenas poliédricas
Joan Arinyo, Robert (1987-12)
Report de recerca
Accés obertAn important problem in the dessign of Solid Modelling Systems is the one related with the realistic model rendering. Up until now, several algorithms dealing with this topic have been developed. Most of these algorithms ... -
Interval analysis applied to constraint feasibility in geometric constraint solving
Joan Arinyo, Robert; Mata Burgarolas, Nuria (1998-01)
Report de recerca
Accés obertIn design and manufacturing applications, users of computer aided design systems are very often interested in knowing the range of values for some dimensions that define the object under design. This work reports on ... -
Interval methods for constructive geometric constraint solving problems
Joan Arinyo, Robert; Mata, Núria; Soto Riera, Antoni (2002-01)
Report de recerca
Accés obertIn advanced computer-aided design systems, an object is defined by a collection of geometric elements along with a set of geometric constraints between them. Given the values assigned to the constraint parameters, ... -
Isothetic polyhedra and monotone boolean formulae
Joan Arinyo, Robert (1994-01)
Report de recerca
Accés obertWe consider the problem of converting boundary representations of isothetic polyhedra into constructive solid geometry (CSG) representations. The CSG representation is a boolean formula based on the halfspaces supporting ... -
Modelo interactivo híbrido de la dinámica de una torre de destilación
Joan Arinyo, Robert; Fernández, Rubén O. (Asociación Española de Informática y Automática (AEIA), 1979)
Text en actes de congrés
Accés obertSe presenta un modelo interactivo híbrido en tiempo real para el estudio de los transitorios de concentración y de temperatura de una torre de destilación en producción contínua en respuesta a perturbaciones introducidas ... -
Multiresolution approximation of polyhedral solids
Ayala Vallespí, M. Dolors; Brunet Crosa, Pere; Joan Arinyo, Robert; Navazo Álvaro, Isabel (1996-06)
Report de recerca
Accés obertMultiresolution models with different levels of detail are a basic tool for handling very large and complex systems in computer aided design applications such as ship design. In this work, we discuss several automatic ... -
Navigating large terrains using commodity mobile devices
Noguera, José María; Segura, Rafael; Ogáyar, Carlos; Joan Arinyo, Robert (2011-09)
Article
Accés restringit per política de l'editorial -
On the integration of CAD and CAE
Hoffmann, C M; Joan Arinyo, Robert (1994-10)
Report de recerca
Accés obertThe principal problem that must be solved when integrating CAD and CAE is to devise an algorithmic exchange of information between the two subsystems. Elsewhere, we have argued that higher-level representations can be ... -
On tree decomposability of Henneberg graphs
Hidalgo, Marta R.; Joan Arinyo, Robert (2014)
Report de recerca
Accés obertIn this work we describe an algorithm that generates well constrained geometric constraint graphs which are solvable by the tree-decomposition constructive technique. The algorithm is based on Henneberg constructions and ... -
On user-defined features
Christoph, Hoffmann M; Joan Arinyo, Robert (1996-10)
Report de recerca
Accés obertFeature-based design is becoming one of the basic design paradigms of CAD systems. In this paradigm the basic unit is a feature and parts are constructed from a sequence of feature attachment operations. The type and ... -
Ordering triangles in triangulated terrains over regular grids
Joan Arinyo, Robert; Alonso Alonso, Jesús (2016)
Text en actes de congrés
Accés restringit per política de l'editorialIn this work we report on a set of rules to visit triangles in triangulated height fields defined over regular grids in a back-to- front order with respect to an arbitrary viewpoint. With the viewpoint, we associate an ... -
Parameter tuning for PBIL and CHC algorithms to solve the root identification problem in geometric constraint solving
Joan Arinyo, Robert; Luzón, M.V.; Yeguas Bolívar, Enrique (2007-01)
Report de recerca
Accés obertEvolutive algorithms are among the most successful approaches for solving a number of problems where systematic search in huge domains must be performed. One problem of practical interest that falls into this category is ... -
Parameter tunning for PBIL algorithm in geometric constraint solving systems
Joan Arinyo, Robert; Luzón, M.V.; Yeguas Bolívar, Enrique (2008-08-14)
Text en actes de congrés
Accés obertIn previous works we have shown that applying genetic algorithms to solve the Root Identification Problem is feasible and effective. The behavior of evolutive algorithms is characterized by a set of parameters that have ... -
Parameter tunning of PBIL and CHC evolutionary algorithms applied to solve the Root Identification Problem
Joan Arinyo, Robert; Luzón, M.V.; Yeguas Bolívar, Enrique (2009-12-01)
Article
Accés restringit per política de l'editorialEvolutionary algorithms are among the most successful approaches for solving a number of problems where systematic searches in huge domains must be performed. One problem of practical interest that falls into this category ... -
Plataforma de desenvolupament de pràctiques de gràfics
Ayala Vallespí, M. Dolors; Brunet Crosa, Pere; Esteve Cusiné, Jordi; Joan Arinyo, Robert; Pérez Vidal, Lluís; Puig Puig, Anna; Solano Albajés, Lluís; Tost Pardell, Daniela; Vigo Anglada, Marc; Vilaplana Pastó, Josep (1999-06)
Report de recerca
Accés obert -
Predicción del rendimiento de CHC y PBIL aplicados al problema de la solución deseada
Joan Arinyo, Robert; Luzón, M.V.; Yeguas Bolívar, Enrique (2007-12)
Report de recerca
Accés obertEl incremento de la complejidad de las instancias del problema de la selección de la solución deseada en resolución de restricciones geométricas supone un aumento considerable del tiempo requerido por las diferentes ... -
Real-time rendering and physics of complex dynamic terrains modeled as CSG trees of DEMs carved with spheres
Alonso Alonso, Jesús; Joan Arinyo, Robert; Chica Calaf, Antonio (Elsevier, 2023-08)
Article
Accés obertWe present a novel proposal for modeling complex dynamic terrains that offers real-time rendering, dynamic updates and physical interaction of entities simultaneously. We can capture any feature from landscapes including ... -
Revisiting decomposition analysis of geometric constraint graphs
Joan Arinyo, Robert; Soto Riera, Antoni; Vila Marta, Sebastià; Vilaplana Pastó, Josep (2002-02)
Report de recerca
Accés obertGeometric problems defined by constraints can be represented by geometric constraint graphs whose nodes are geometric elements and whose arcs represent geometric constraints. Reduction and decomposition are techniques ...