Learning Processing

Chapter 1

Pixels

“A journey of a thousand miles begins with a single step.”

—Lao-tzu

In this chapter:

– Specifying pixel coordinates.

– Basic shapes: point, line, rectangle, ellipse.

– Color: grayscale, “RGB.”

– Color transparency.

Note that we are not doing any programming yet in this chapter! We are just dipping our feet in the water and getting comfortable with the idea of creating onscreen graphics with text-based commands, that is, “code”!

1.1 Graph Paper

This book will teach you how to program in the context of computational media, and it will use the development environment Processing (http://www.processing.org) as the basis for all discussion and examples. But before any of this becomes relevant or interesting, we must first channel ...