Curve networks compatible with G2 surfacing

  • Authors:
  • Thomas Hermann;Jörg Peters;Tim Strotman

  • Affiliations:
  • Parasolid Components, Siemens PLM Software, United States;University of Florida, United States;Parasolid Components, Siemens PLM Software, United States

  • Venue:
  • Computer Aided Geometric Design
  • Year:
  • 2012

Quantified Score

Hi-index 0.00

Visualization

Abstract

Prescribing a network of curves to be interpolated by a surface model is a standard approach in geometric design. Where n curves meet, even when they afford a common normal direction, they need to satisfy an algebraic condition, called the vertex enclosure constraint, to allow for an interpolating piecewise polynomial C^1 surface. Here we prove the existence of an additional, more subtle constraint that governs the admissibility of curve networks for G^2 interpolation. Additionally, analogous to the first-order case but using the Monge representation of surfaces, we give a sufficient geometric, G^2 Euler condition on the curve network. When satisfied, this condition guarantees existence of an interpolating surface.