9:15 AM / Thursday, November 9
IP8
Physics-Based CAGD and Visual Data Analysis
The speaker will present an approach to geometric design that
puts the laws of physics on the side of the designer.
Conventional CAGD is based on geometric primitives and operations
that often require the designer to painstakingly adjust geometric
parameters to achieve desired shapes. By contrast, physics-based
CAGD treats these parameters as generalized coordinates which
evolve automatically in response to simulated forces and
geometric constraints according to the principles of Lagrangian
mechanics.
The speaker will discuss D-NURBS, dynamic generalizations of
industry standard NURBS, and dynamic superquadrics. These
primitives incorporate mass distributions, deformation energies,
and other physical quantities to control the behavior of the
free-form or parameterized geometric substrate. Imbuing standard
geometric primitives with intuitively meaningful physical
behavior supports interactive sculpting and allows the models to
be applied to visual data analysis.
Demetri Terzopoulos
Department of Computer Science
University of Toronto
8/28/95