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
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Parsing CSV


CSV (Comma Separated Values) files are text files, commonly used for storing data. Each line contains a row of data. The different pieces of data in each row are separated by a comma. If you open a CSV file in a spreadsheet application such as Microsoft Excel or OpenOffice, you'll notice that each piece of data will be in its own cell. The file I've used looks like the following, if you open it in a text editor.

How to do it...

The first piece of code should look familiar. We've used the loadStrings() function in the first recipe of this chapter, to load a text file. We'll use it to load a CSV file here.

String[] textLines;
  
void setup()
{
  textLines = loadStrings("processing-websites.csv");
  
  noLoop();
}

Inside the draw() function, we'll loop through the lines of text. The split() function is used to split each line into an array with different pieces of data. We'll use a second for loop to print these pieces of data to the console.

void draw()
{
  background( 255 );
  translate...