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From: wlrush@water.waterloo.edu (Wenchantress Wench Wendall)
Newsgroups: ont.events,uw.talks,uw.cs.grad
Subject: MASTER'S THESIS PRESENTATION
Keywords: Mr. Paul Ruest, graduate student, Dept. of Computer Science,
Message-ID: <2692@water.waterloo.edu>
Date: 12 Oct 89 14:40:37 GMT
Distribution: ont
Organization: U of Waterloo, Ontario
Lines: 42

will speak on ``An Evaluation of Tension within an Extensible 
Spline Testing Facility.''



DEPARTMENT OF COMPUTER SCIENCE
UNIVERSITY OF WATERLOO
SEMINAR ACTIVITIES

MASTER'S THESIS PRESENTATION

                    -Monday, October 16, 1989 NOTE!! DATE CHANGE!!

Mr.  Paul  Ruest,  graduate  student, Dept. of Computer
Science,  will  speak  on  ``An  Evaluation  of Tension
within an Extensible Spline Testing Facility.''

TIME:                 10:30 a.m.

ROOM:                 DC 3540  NOTE!! CHANGE OF ROOM

ABSTRACT

    Beta2  and rational B-splines have received a great
deal  of  attention in recent years.  Both associate an
extra parameter called tension with each control vertex
which  allows the curve to be pulled or pushed locally,
relative  to  the  control  polygon, and independent of
control vertex movement.

    An  obvious  question from the design point of view
is whether users actually find these tension parameters
useful.   Therefore  an  experiment  was  designed  and
performed  to  explore  the  usefulness of tension when
interactively designing curves.

    The  experiment was performed on a reworked version
of  an  extensible  spline testing software system that
has  been  developed  at  the  University  of  Waterloo
Graphics lab.

                    October 5, 1989