Book Image

Processing 2: Creative Programming Cookbook

Book Image

Processing 2: Creative Programming Cookbook

Overview of this book

Processing is probably the best known creative coding environment that helps you bridge the gap between programming and art. It enables designers, artists, architects, students and many others to explore graphics programming and computational art in an easy way, thus helping you boost your creativity. "Processing 2: Creative Programming Cookbook" will guide you to explore and experience the open source Processing language and environment, helping you discover advanced features and exciting possibilities with this programming environment like never before. You'll learn the basics of 2D and 3D graphics programming, and then quickly move up to advanced topics such as audio and video visualization, computer vision, and much more with this comprehensive guide. Since its birth in 2001, Processing has grown a lot. What started out as a project by Ben Fry and Casey Reas has now become a widely used graphics programming language. Processing 2 has a lot of new and exciting features. This cookbook will guide you to explore the completely new and cool graphics engine and video library. Using the recipes in this cookbook, you will be able to build interactive art for desktop computers, Internet, and even Android devices! You don't even have to use a keyboard or mouse to interact with the art you make. The book's next-gen technologies will teach you how to design interactions with a webcam or a microphone! Isn't that amazing? "Processing 2: Creative Programming Cookbook" will guide you to explore the Processing language and environment using practical and useful recipes.
Table of Contents (18 chapters)
Processing 2: Creative Programming Cookbook
About the Author
About the Reviewers

Loading text files from the hard drive

This recipe will cover the basics of loading text files from the hard drive. You will also use this technique in some of the other recipes in this chapter.

Getting ready

You'll need a text file with a few lines of text. I've used the poem My life as a progress meter by fridge. You can read it on the open source poetry website, at You need to add the text file to the data folder of your Processing sketch.

How to do it...

We'll start by declaring an array of the type String. The loadStrings() function inside the setup() function will load the text file from the hard drive into the String array.

String[] textLines;

void setup()
  size( 640, 200 );
  textLines = loadStrings("poem.txt");

In the draw() function, we'll loop through the array and use the number of characters in each line of text to calculate the diameter for the ellipse we'll draw. Each line of...