Browsing Issue 3 by Title

Now showing items 39-44 of 44

    • Towards Context- Dependent Interpolation of Digital Elevation Models 

      Dixon, A.R.; Kirby, G.H.; Wills, D.P.M. (Blackwell Science Ltd and the Eurographics Association, 1994)
      The fractional Brownian motion (fBm) model has become increasingly popular in recent years as a mechanism for the synthesis of many natural phenomena. Unfortunately, the required interdependence of neighbouring points over ...

    • Triangulating multiply-connected polygons: A simple, yet efficient algorithm. 

      Ronfard, Remi P.; Rossignac, Jarek R. (Blackwell Science Ltd and the Eurographics Association, 1994)
      We present a new, simple, yet efficient algorithm for triangulating multiply-connected polygons. The algorithm requires sorting only local concave minima (sags). The order in which triangles are created mimics a flooding ...

    • Variational Design and Fairing of Spline Surfaces 

      Greiner, Gunther (Blackwell Science Ltd and the Eurographics Association, 1994)
      Variational principles have become quite popular in the design of free form surfaces. Among others they are used for fairing purposes. The choice of the right fairness functional is a crucial step. There is always a ...

    • Vector Fields: an Interactive Tool for Animation, Modeling and Simulation with Physically Based 3D Particle Systems and Soft Objects 

      Hilton, Travis L.; Egbert, Parris K. (Blackwell Science Ltd and the Eurographics Association, 1994)
      Vectorfields have traditionally been used in computer graphics as a means of visualizing models over time. This paper presents a system which extends the use of vector fields as an interactive tool for physically based ...

    • Visualization of Regular Polytopes in Three and Four Dimensions 

      Hausmann, Barbara; Seidel, Hans-Peter (Blackwell Science Ltd and the Eurographics Association, 1994)
      Nontrivial regular polytopes only exist in three and four dimensions. This paper describes a software package that allows to interactively visualize and analyze these regular polytopes. The following four tools are available: ...

    • Volume Rendering on Non-regular Grids 

      Tabatabai, Behnam; Sessarego, Emanuela A.; Mayer, Harald F. (Blackwell Science Ltd and the Eurographics Association, 1994)
      In this article we present the principle methods for volumerendering of non-regular grids as used in the Finite Element Method or the Method of Control Volumes. Besides linear element types, the methods discussed here also ...