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Object-oriented systems have gained a great deal of popularity
recently and their application to graphics has been very
successful. This book documents a number of recent advances and
indicates numerous areas of current research. The purpose of the
book is: - to demonstrate the extraordinary practical utility of
object-oriented methods in computer graphics (including user
interfaces, image synthesis, CAD), - to examine outstanding
research issues in the field of object-oriented graphics, and in
particular to investi- gate extensions and shortcomings of the
methodology when applied to computer graphics. Papers included in
the book extend existing object-oriented graphical techniques, such
as Smalltalk's "model view controller" or "constraints," introduce
the use of complex and persistent objects in graphics, and give
approaches to direct manipulation interfaces. The reader is
presented with an in-depth treatment of a number of significant
existing graphics systems, both for user interfaces and for image
synthesis. There are theoretical surveys and chapters pointing to
new directions in the broad field of computer graphics. Computer
language scientists will find a useful critique of object-oriented
language constructs and suggested ways to extend object-oriented
theory.
Object-oriented concepts are particularly applicable to computer
graphics in its broadest sense, including interaction, image
synthesis, animation, and computer-aided design. The use of
object-oriented techniques in computer graphics is a widely
acknowledged way of dealing with the complexities encountered in
graphics systems. But the field of object-oriented graphics (OOG)
is still young and full of problems. This book reports on latest
advances in this field and discusses how the discipline of OOG is
being explored and developed. The topics covered include
object-oriented constraint programming, object-oriented modeling of
graphics applications to handle complexity, object-oriented
techniques for developing user interfaces, and 3D modeling and
rendering.
The papers in this volume are a good sampling and overview of
current solutions to the problems of creating graphically based
systems. This breadth of scope comes out of the closing discussion
at the Fourth Eurographics Workshop on Object-Oriented Graphics.
The fifth workshop, on Programming Paradigms in Graphics, set out
to provide answers and alternatives to the shortcomings of
object-oriented graphics. The presentations investigated the
applicability, merits and problems of various programming paradigms
in computer graphics for design, modelling and implementation. This
book contains a revised selection of the best papers from the Fifth
Eurograph ics Workshop on Programming Paradigms in Graphics, held
2-3 September 1995 in Maastricht, The etherlands. All papers at the
workshop were subjected to a thorough review by at least three
members of the international programme committee. The se lection
for this book was based on further review and the papers also
incorporate the relevant aspects of the discussions at the
workshop. In past Eurographics workshops on Object-Oriented
Graphics the prominent trend has been a discovery of the limits of
object-orientation in graphics. The limitations of
object-orientation were felt to lie in such areas as the expression
of relationships between objects. This is an area of particular
strength for the declarative languages, such as constraint-based
languages. On the other hand, a notion of state has long been a
problem in declarative languages and yet it is often seen as an
essential aspect of graphical modelling, particularly in simulation
and animation."
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