// Based on the code examples on page 66

////////////////////////////////////////////////////// modification for forkable.eu
import processing.pdf.*;
String outputdir = "tmp/";
///////////////////////////////////////////////////////////////////////////////////

size(180, 666);
background(255);
strokeWeight(0.25);
strokeCap(SQUARE);

beginRecord(PDF, outputdir + "page_060.pdf"); // modification for forkable.eu

for (int y = 0; y <= height; y += 5) { 
  for (int x = 0; x <= width; x += 5) { 
    if (x % 20 == 0) { 
      line(x, y, x-3, y-3); 
    } 
    else { 
      line(x, y, x-3, y+3); 
    } 
  }
}

endRecord(); // modification for forkable.eu
exit(); // modification for forkable.eu