Browsing Solid Modeling 04 by Subject "and object representations"

Now showing items 1-10 of 10

    • 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 ...

    • 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 ...

    • 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 ...

    • 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 ...

    • 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 ...

    • Integrated Feature-Based and Geometric CAD Data Exchange 

      Spitz, S. N.; Rappoport, A. (The Eurographics Association, 2004)
      Data exchange between CAD systems is an extremely important solid modeling concept, fundamental both for the theory of the field and for its practical applications. The two main data exchange (DE) paradigms are geometric ...

    • Medial Axis Extraction and Shape Manipulation of Solid Objects Using Parabolic PDEs 

      Du, H.; Qin, H. (The Eurographics Association, 2004)
      Shape skeletonization (i.e., medial axis extraction) is powerful in many visual computing applications, such as pattern recognition, object segmentation, registration, and animation. This is because medial axis (or skeleton) ...

    • Optimization Techniques for Approximation with Subdivision Surfaces 

      Marinov, M.; Kobbelt, L. (The Eurographics Association, 2004)
      We present a method for scattered data approximation with subdivision surfaces which actually uses the true representation of the limit surface as a linear combination of smooth basis functions associated with the control ...

    • Plumber: A Multi-scale Decomposition of 3D Shapes into Tubular Primitives and Bodies 

      Mortara, M.; Patane, G.; Spagnuolo, M.; Falcidieno, B.; Rossignac, J. (The Eurographics Association, 2004)
      Plumber is a specialized shape classi cation method for detecting tubular features of 3D objects represented by a triangle mesh. The Plumber algorithm segments a surface into connected components that are either body parts ...

    • Tolerance Envelopes of Planar Parametric Part Models 

      Ostrovsky-Berman, Y.; Joskowicz, L. (The Eurographics Association, 2004)
      We present a framework for the systematic study of parametric variation in planar mechanical parts and for ef ciently computing approximations of their tolerance envelopes. Part features are speci ed by explicit functions ...