@Override
public void update() {
this.defined = false;
if (!parent1.isDefined()) return;
Shape2D shape = parent1.getShape();
if (!(shape instanceof Domain2D)) return;
Domain2D domain = (Domain2D) shape;
boundary = domain.getBoundary();
this.defined = true;
}
public void paintComponent(Graphics g) {
Graphics2D g2 = (Graphics2D) g;
// TODO: wrong for dist=51, wrong for dist=52
buffer = ring.buffer(51);
g2.setColor(Color.CYAN);
buffer.fill(g2);
g2.setColor(Color.BLUE);
buffer.draw(g2);
g2.setColor(Color.BLACK);
ring.draw(g2);
}