// Example 04-02 from "Getting Started with Processing" 
// by Reas & Fry. O'Reilly / Make 2010

size(480, 120);
smooth();
int y = 100;
int d = 130;
ellipse(75, y, d, d);   // Left
ellipse(175, y, d, d);  // Middle
ellipse(275, y, d, d);  // Right