3D POINT LOCATION FOR SPECIAL FEATURE PRESERVATION DURING SURFACE SMOOTHING
M.M. Madi & D.J. Walton
Department of Computer Science
University of Manitoba, Winnipeg, Manitoba R3T 2N2
Canada
{mmadi,walton}@cs.umanitoba.ca
ABSTRACT
The development of a smooth geometric model from a crudely approximated
object is often sought in CAD/CAM, computer-aided
geometric design and
similar applications. For example, many
surface fitting techniques may
have as their input data that are crudely sampled
from free form objects
to digitally reproduce such objects
to look smooth again. However,
regardless of the surface fitting technique
used whose choice is usually
application dependent, there are always particular features on the
approximated
models that should not undergo the smoothing procedures to maintain
visual
realism. A technique for interactively
marking such sampled points for
preservation and special treatment is described.
