February 9, 2000 Java Programming, Lecture Notes # 302 by
Richard G. Baldwin This lesson is primarily concerned with the
use of the java.awt.geom.Point2D class. It also illustrates the
use of nested top-level classes in the Java 2D Graphics API.
This is a concept that was explained in an earlier tutorial
lesson. If you aren’t familiar with this concept, you should
review the earlier tutorial that explains it. The concept of a
point is central to most graphics models. A point is a
specification of a particular location in space. It has neither
height, nor width, nor depth. Therefore, it cannot be rendered
on your computer screen, although it might be possible to render
a pixel on your screen that occupies a space generally specified
by the point. Although points can exist in three-dimensional
space, that is not our interest in the current series of
lessons. This series of lessons in concerned with the Java 2D
(two-dimensional) API. Hence, a point in our 2D space represents
a location in that space commonly spe