Browsing Solid Modeling by Title

Now showing items 1-20 of 43

    • 3D Discrete Skeleton Generation by Wave Propagation on PR-Octree for Finite Element Mesh Sizing 

      Quadros, W. R.; Shimada, K.; Owen, S. J. (The Eurographics Association, 2004)
      This paper proposes a new algorithm to generate a disconnected, three-dimensional (3D) skeleton and an application of such a skeleton to generate a finite element (FE) mesh sizing function of a solid. The mesh sizing ...

    • Actual Morphing: A Physical-Based Approach for Blending Two 2D/3D Shapes 

      Hu, S. M.; Li, C. F.; Zhang, H. (The Eurographics Association, 2004)
      When two topologically identical shapes are blended, various possible transformation paths exist from the source shape to the target shape. Which one is the most plausible? Here we propose that the transformation process ...

    • Automatic Building of Structured Geological Models 

      Brandel, S.; Schneider, S.; Perrin, M.; Guiard, N.; Rainaud, J. F.; Lienhardt, P.; Bertrand, Y. (The Eurographics Association, 2004)
      The present article proposes a method to signi cantly improve the construction and updating of 3D geological models used for oil and gas exploration. The proposed method takes advantage of the speci c structures which ...

    • B-rep SE: Simplicially Enhanced Boundary Representation 

      Freytag, M.; Shapiro, V. (The Eurographics Association, 2004)
      Boundary representation (B-rep) is a popular representation scheme for mechanical objects due to its ability to accurately represent piecewise smooth surfaces bounding solids. However, non-trivial topology and geometry of ...

    • Compression, Segmentation, and Modeling of Filamentary Volumetric Data 

      McCormick, B.; Busse, B.; Doddapaneni, P.; Melek, Z.; Keyser, J. (The Eurographics Association, 2004)
      We present a data structure for the representation of filamentary volumetric data, called the L-block. While the L-block can be used to represent arbitrary volume data sets, it is particularly geared towards representing ...

    • A Condition for Isotopic Approximation 

      Chazal, F.; Cohen-Steiner, D. (The Eurographics Association, 2004)
      In this paper, we give a very simple and purely topological condition for two surfaces to be isotopic. This work is motivated by the problem of surface approximation. Applications to implicit surfaces are given, as well ...

    • Connected and Manifold Sierpinski Polyhedra 

      Akleman, E.; Srinivasan, V. (The Eurographics Association, 2004)
      In this paper, we present a subdivision-inspired scheme to construct generalized Sierpinski polyhedron. Unlike usual Sierpinski polyhedra construction schemes, which create either an infinite set of disconnected tetrahedra ...

    • Constraint-based Design of B-spline Surfaces from Curves 

      Michalik, P.; Bruderlin, B. D. (The Eurographics Association, 2004)
      In this paper we describe the design of B-spline surface models by means of curves and tangency conditions. The intended application is the conceptual constraint-driven design of surfaces from hand-sketched curves. The ...

    • Contour Interpolation with Bounded Dihedral Angles 

      Bereg, S.; Jiang, M.; Zhu, B. (The Eurographics Association, 2004)
      In this paper, we present the first nontrivial theoretical bound on the quality of the 3D solids generated by any contour interpolation method. Given two arbitrary parallel contour slices with n vertices in 3D, let a be ...

    • Developability-preserved Free-form Deformation of Assembled Patches 

      Wang, C. C. L.; Tang, K. (The Eurographics Association, 2004)
      A novel and practical approach is presented in this paper that solves a constrained free-form deformation (FFD) problem where the developability of the tessellated embedded surface patches is preserved during the lattice ...

    • An Effective Condition for Sampling Surfaces with Guarantees 

      Boissonnat, J. D.; Oudot, S. (The Eurographics Association, 2004)
      The notion of e-sample, as introduced by Amenta and Bern, has proven to be a key concept in the theory of sampled surfaces. Of particular interest is the fact that, if E is an e-sample of a smooth surface S for a suf ciently ...

    • Efficient and Robust Computation of an Approximated Medial Axis 

      Yang, Y.; Brock, O.; Moll, R. N. (The Eurographics Association, 2004)
      The medial axis can be viewed as a compact representation for an arbitrary model; it is an essential geometric structure in many applications. A number of practical algorithms for its computation have been aimed at speeding ...

    • Efficient Processing of 3D Scanned Models 

      Scopigno, R. (The Eurographics Association, 2004)
      The construction of detailed and accurate 3D models is made easier by the increasing diffusion of automatic sampling devices (often called 3D scanners). These allow to build digital models of real 3D objects in a cost- and ...

    • Euler Operators for Stratified Objects with Incomplete Boundaries 

      Gomes, A. J. P. (The Eurographics Association, 2004)
      Stratified objects such as those found in geometry-based systems (e.g. CAD systems and animation systems) can be stepwise constructed and manipulated through Euler operators. The operators proposed in this paper extend ...

    • Fast Continuous Collision Detection for Articulated Models 

      Redon, S.; Lin, M. C.; Manocha, D. (The Eurographics Association, 2004)
      We present a novel algorithm to perform continuous collision detection for articulated models. Given two discrete configurations of the links of an articulated model, we use an ''arbitrary in-between motion'' to interpolate ...

    • A Framework for Multiresolution Adaptive Solid Objects 

      Chang, Y.- S.; Qin, H. (The Eurographics Association, 2004)
      Despite the growing interest in subdivision surfaces within the computer graphics and geometric processing communities, subdivision approaches have been receiving much less attention in solid modeling. This paper presents ...

    • From Computer Geometry to Manufacturing Algorithms 

      Cohen, E. (The Eurographics Association, 2004)
      Abstractly, machining a shape is rather a simple task, that is, one is merely asked to subtractively metamorphose a superset of stock material into the ultimate shape of a given geometric model. In practice, however, there ...

    • Frontmatter Solid Modeling 2014 

      Gershon Elber and Nicholas Patrikalakis and Pere Brunet (The Eurographics Association, 2004)
      Table of Contents and Preface, Committees, Cover

    • Handling Degeneracies in Exact Boundary Evaluation 

      Ouchi, K.; Keyser, J. (The Eurographics Association, 2004)
      We present a method for dealing with degenerate situations in an exact boundary evaluation system. We describe the possible degeneracies that can arise and how to detect them. We then present a numeric perturbation method ...

    • History Based Reactive Objects for Immersive CAD 

      Convard, T.; Bourdot, P. (The Eurographics Association, 2004)
      Virtual Environments (VE) allow direct 3D interaction, better perception of shapes and a feel of immersion, properties that are highly desirable for design tasks. Traditional CAD software extensively use WIMP interfaces ...