Browsing 35-Issue 5 by Subject "Geometric algorithms"

Now showing items 1-5 of 5

    • Advection-Based Function Matching on Surfaces 

      Azencot, Omri; Vantzos, Orestis; Ben-Chen, Mirela (The Eurographics Association and John Wiley & Sons Ltd., 2016)
      A tangent vector field on a surface is the generator of a smooth family of maps from the surface to itself, known as the flow. Given a scalar function on the surface, it can be transported, or advected, by composing it ...

    • Construction of Topologically Correct and Manifold Isosurfaces 

      Grosso, Roberto (The Eurographics Association and John Wiley & Sons Ltd., 2016)
      We present a simple method to describe the geometry and topologically classify the intersection of level sets of trilinear interpolants with a reference unit cell. The solutions of three quadratic equations are used to ...

    • Mesh Statistics for Robust Curvature Estimation 

      Váša, Libor; Vaněček, Petr; Prantl, Martin; Skorkovská, Věra; Martínek, Petr; Kolingerová, Ivana (The Eurographics Association and John Wiley & Sons Ltd., 2016)
      While it is usually not difficult to compute principal curvatures of a smooth surface of sufficient differentiability, it is a rather difficult task when only a polygonal approximation of the surface is available, because ...

    • Near-Isometric Level Set Tracking 

      Tao, Michael; Solomon, Justin; Butscher, Adrian (The Eurographics Association and John Wiley & Sons Ltd., 2016)
      Implicit representations of geometry have found applications in shape modeling, simulation, and other graphics pipelines. These representations, however, do not provide information about the paths of individual points as ...

    • Polycube Simplification for Coarse Layouts of Surfaces and Volumes 

      Cherchi, Gianmarco; Livesu, Marco; Scateni, Riccardo (The Eurographics Association and John Wiley & Sons Ltd., 2016)
      Representing digital objects with structured meshes that embed a coarse block decomposition is a relevant problem in applications like computer animation, physically-based simulation and Computer Aided Design (CAD). One ...