[ont.events] n

wlrush@water.waterloo.edu (Wenchantress Wench Wendall) (04/28/89)

DEPARTMENT OF COMPUTER SCIENCE
UNIVERSITY OF WATERLOO
SEMINAR ACTIVITIES

MASTER'S ESSAY PRESENTATION

                    -Monday, May 1, 1989

Mr.  Ron  Pfeifle,  graduate student, Dept. of Computer
Science,   University   of   Waterloo,  will  speak  on
"n-Dimensional Tensor Product Slices."

TIME:                 10:30 

ROOM:              DC 1302

ABSTRACT

Tensor  product  surfaces  are  widely used in computer
graphics   and  computer  aided  geometric  design  for
representing freeform curves and surfaces.  One feature
of  standard  tensor  product  surfaces is that surface
patches  retain  vestiges  of  the original rectilinear
shape  of  the  domain  of  the  tensor  product.  This
feature not always desired or necessary.

In  this  talk,  we  introduce  a variant on the tensor
product,  called the tensor product slice, which can be
                     ------ ------- ------
used  to  create  surface  patches  of  non-rectilinear
shape.   We  will  see how this variant retains many of
the  desirable  properties  of general tensor products,
and  show  that many properties specific to one type of
tensor  product,  the  B'zier  tensor product, are also
retained by B'zier tensor product slices.