How vector graphics are created

Art on a path

Illustrator has a brush tool, whose function is 'adding art to paths' - a really creative and far-sighted step from the basics of bezier curves.

It must mean that the programme stores quite a lot of sophisticated information, not only where the path goes, but how thick it is at different points of its length, what is attached to it at what intervals, and so on.

There are four brush types - Calligraphic, Scatter, Art, and Pattern brushes: here is a tiny sample.

a closer look at how it works in a QuickTime animation - 500 Mb