wlrush@water.waterloo.edu (Wenchantress Wench Wendall) (06/15/89)
DEPARTMENT OF COMPUTER SCIENCE
UNIVERSITY OF WATERLOO
SEMINAR ACTIVITIES
JOINT SYMBOLIC ALGEBRA AND COMPUTER GRAPHICS SEMINAR
-Monday, June 19, 19989
Dr. Eliyezer Kohen, University of Zurich ETH will speak
on ``Rubi-AN Open Interactive Graphics Editor.''
TIME: 3:30 p.m.
ROOM: DC 1304
ABSTRACT
Rubi is an object-oriented, user-extensible, and
interactive graphics editor for technical illustrations
with overlapping textured areas, text strings, bitmap
images and logos. Rubi has been structured so that a
user can add new object classes, new attribute values,
and new commands without having access to the source
code.
As usual the extensibility with new object classes is
realized by installing a class handler for that class.
Rubi distinguishes itself from other systems by
allowing this type of extensibility for all the levels
of the editor, down to drawing a pixel on the screen.
Thus a new method can be added to an existing class
handler without having access to the source code of
that handler. New attribute values like new line
types, line patterns or texture patterns can be added
by the user to the system by dynamic loading of a small
module consisting of just a few lines.
Also introduced by Rubi is a novel type of user
interaction: With the concept of interpreters every
objection the screen can be employed by the user to
invoke commands. This gives the user a high efficiency
in executing complicated graphic commands and the
ability to form his work environment according to his
needs without resorting to abstract issues like user
interface profiles.
Rubi is wholly programmed in Modula-2 on the Ceres
personal workstation designed by N. Wirth at the ETH
Zurich. The author was awarded the ETH Honours Medal
for his work including the Rubi project.john@aimed.UUCP (John D.) (06/23/89)
In article <2424@water.waterloo.edu>, wlrush@water.waterloo.edu (Wenchantress Wench Wendall) writes: > DEPARTMENT OF COMPUTER SCIENCE > UNIVERSITY OF WATERLOO > SEMINAR ACTIVITIES > > JOINT SYMBOLIC ALGEBRA AND COMPUTER GRAPHICS SEMINAR > > -Monday, June 19, 19989 Well guys, I'm afraid I'll kind of be dead by then...Don't you think that is going a little too far? I mean I've heard of planning for the future but this? Hey...I always knew that MY FAVOURITE UNIVERSITY is serious about schedualing and making sure there is no conflicts with...say exams? This is efficancy (did I spell that right?) to its best!!! Hey, this just goes to show (to all you U of T'ers) that we (U of W) have our act together and planned out for the next 18000 years! - ********************************************************** All this from a CS/EEE student (how did you guess that I go to Waterloo?) on a five year co-op mission... What is this mission? you may ask. and ofcourse I will indeed say: MISSION: TO BOLDLY GO WHERE NO PROGRAMMER HAS GONE BEFORE! ---and on that note my message to all: LIVE LONG AND PROGRAM! **********************************************************