Ara es mostren els items 1-20 de 30

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

    López Monterde, Daniel; Martínez Bayona, Jonàs; Vigo Anglada, Marc; Pla García, Núria (2014)
    Text en actes de congrés
    Accés obert
    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 ...
  • A practical and robust method to compute the boundary of three-dimensional axis-aligned boxes 

    López Monterde, Daniel; Martínez Bayona, Jonas; Vigo Anglada, Marc; Pla García, Núria (2013)
    Report de recerca
    Accés obert
    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 ...
  • An incremental algorithm based on edge swapping for constructing restricted Delaunay triangulations 

    Vigo Anglada, Marc (1995-12)
    Report de recerca
    Accés obert
    This work presents an algorithm that given a generalized planar graph obtains its Constrained Delaunay Triangulation (CDT). The proposed method works incrementally based in two procedures, one that inserts a new point in ...
  • Aproximació facetada de superfícies paramètriques retallades 

    Vigo Anglada, Marc (Universitat Politècnica de Catalunya, 1998-11-30)
    Tesi
    Accés obert
  • Computing directional constrained Delaunay triangulations 

    Vigo Anglada, Marc (1998-03)
    Report de recerca
    Accés obert
    This work presents two generalizations of the algorithm for obtaining a constrained Delaunay triangulation of a general planar graph presented in [Vig97] and [Vig95]. While the first generalization works with ...
  • Curvature adaptive triangulations of surfaces 

    Vigo Anglada, Marc; Pla García, Núria; Brunet Crosa, Pere (2000-03)
    Report de recerca
    Accés obert
    Many application areas in CAD/CAM are concerned with triangulation of surfaces, and require an error bounded approximation of a parametric surface model. In this paper we present an overview of the authors results on ...
  • Desarrollo de una aplicación CAE para el diseño de circuitos de ventilación 

    Ayala Vallespí, M. Dolors; Pla García, Núria; Soto Riera, Antoni; Vigo Anglada, Marc; Vila Marta, Sebastià (1999-07)
    Report de recerca
    Accés obert
    En este trabajo se presenta una aplicacion CAE para el diseno de circuitos de ventilacion. En ella se han desarrollado aspectos de diseno del modelo, de la interaccion con el usuario y de simulacion del comportamiento ...
  • Diagrames de Voronoi i grafs de Delaunay de distancies amb pesos i de distàncies el·líptiques 

    Vigo Anglada, Marc (1999-12-01)
    Report de recerca
    Accés obert
    This work studies the feasibility of a constrained Delaunay triangulation of a set of points on the plane including directionality pointed by the ellipses associated to the points. Generalizations of the Voronoi diagram ...
  • Directional adaptive surface triangulation 

    Vigo Anglada, Marc; Pla García, Núria; Brunet Crosa, Pere (1999-02)
    Article
    Accés restringit per política de l'editorial
    Several CAD applications require a surface model of the modeled object consisting of a mesh of triangular facets. In this paper, a new algorithm for triangulation of trimmed surfaces is presented. The algorithm generates ...
  • Efficient algorithms for boundary extraction of 2D and 3D orthogonal pseudomanifolds 

    Vigo Anglada, Marc; Pla García, Núria; Ayala Vallespí, M. Dolors; Martínez Bayona, Jonàs (2011)
    Report de recerca
    Accés obert
    In this paper we present algorithms to extract the boundary representation of orthogonal polygons and polyhedra, either manifold or pseudomanifold. The algorithms we develop reconstruct not only the polygons of the boundaries ...
  • Efficient algorithms for boundary extraction of 2D and 3D orthogonal pseudomanifolds 

    Vigo Anglada, Marc; Pla García, Núria; Ayala Vallespí, M. Dolors; Martínez Bayona, Jonás (2012)
    Article
    Accés restringit per política de l'editorial
    In this paper we present algorithms to extract the boundary representation of orthogonal polygons and polyhedra, either manifold or pseudomanifold. The algorithms we develop reconstruct not only the polygons of the boundaries ...
  • From degenerate patches to triangular and trimmed patches 

    Vigo Anglada, Marc; Pla García, Núria; Brunet Crosa, Pere (1995-03)
    Report de recerca
    Accés obert
    CAD systems are usually based on a tensor product representation of free form surfaces. Trimmed patches provide a reasonable solution for the representation of general topologies, provided that the gap between equivalent ...
  • From Degenerate Patches to Triangular and Trimmed Patches 

    Vigo Anglada, Marc; Pla García, Núria; Brunet Crosa, Pere (1996)
    Text en actes de congrés
    Accés restringit per política de l'editorial
  • Funciones en el modelado de solidos y paradigmas de diseño 

    Solano Albajés, Lluís; Vigo Anglada, Marc; Puig Puig, Anna (2001-10)
    Report de recerca
    Accés obert
    En este artículo se describen y analizan las diferentes funciones de modelado de sólidos más comunes que ofrecen los actuales sistemas de CAD. Se explican también las limitaciones e inconsistencias a qué pueden dar ...
  • Geometric objects in Blender 2.32 

    Vigo Anglada, Marc (2004-05)
    Report de recerca
    Accés obert
    The aim of this document is to explore the way that Blender 2.32 stores the information for modeling static scenes. First, the conceptual model the system uses to store geometric objects is explained, guiding the user to ...
  • Multisided patches 

    Pla García, Núria; Vigo Anglada, Marc; Cotrina Navau, Josep (2004-06)
    Report de recerca
    Accés obert
    We present a method to construct a patch of parametric surface of degree k + 1 that lls a n-sided hole, with n bigger than 2, and whose boundary coincides with a B-Spline, thus, the resulting patch can be easily connected ...
  • N-sided patches with B-spline boundaries 

    Cotrina Navau, Josep; Pla García, Núria; Vigo Anglada, Marc (2001-12)
    Report de recerca
    Accés obert
    We present a method to construct a patch of parametric surface of degree k+1 that fills a n-sided hole, with bigger than 2, and whose boundary coincides with a B-Spline, thus, the resulting patch can be easily connected ...
  • Regular triangulations of dynamic sets of points 

    Vigo Anglada, Marc; Pla García, Núria (2000-10)
    Report de recerca
    Accés obert
    The Delaunay triangulations of a set of points are a class of triangulations which play an important role in a variety of different disciplines of science. Regular triangulations are a generalization of Delaunay ...
  • Sistemas de CAD de rango medio 

    Vigo Anglada, Marc; Solano Albajés, Lluís (2000-03)
    Report de recerca
    Accés obert
    At present, thanks to the increase of hardware performance, there is a wide range of CAD systems for personal computers, from small 2D applications to sophisticated and complete 3D systems. CAD systems for PC ...
  • Skeletal representations of orthogonal shapes 

    Martínez Bayona, Jonás; Pla García, Núria; Vigo Anglada, Marc (2012)
    Report de recerca
    Accés obert
    In this paper we present two skeletal representations applied to orthogonal shapes of R^n : the cube axis and a family of skeletal representations provided by the scale cube axis. Orthogonal shapes are a subset of polytopes, ...