size(480, 120);
background(0);
fill(255);
stroke(102);

for (int y=20; y <= height-20; y += 10) {
  for (int x=20; x <= width-20; x += 10) {
    ellipse(x, y, 4, 4);
    // Draw a line to the center of the display
    line(x, y, 240, 60);
  }
}