A model is reduced to a picture by systematic transformation through
several coordinate systems. The user's coordinate system, commonly
called world space
is the highest level, while the * device
coordinate system* and device space
is the lowest. Image Space is the three-dimensional coordinate
system that contains screen space. It is the space where
the camera transformation directs its output.

For a pdf version of these notes look here.

** Image Space**

The term * Image Space* is used to define the 3-dimensional
volume.

This volume contains * Screen Space*, which is the intersection of
the
plane with image space.
Points in image space are mapped into
screen space
by projecting via a parallel projection, onto the plane
- thus, for example,
any point
in image space will project to the center of the
display screen.

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**This document maintained by Ken
Joy**

All contents copyright (c) 1996, 1997, 1998,
1999

Computer Science Department

University of California, Davis

All rights reserved.

1999-12-06