How to use

setBounds

method

in

org.jhotdraw.draw.RectangleFigure

/**
 * Moves the Figure to a new location.
 * @param tx the transformation matrix.
 */
@Override
public void transform(AffineTransform tx) {
  Point2D.Double anchor = getStartPoint();
  Point2D.Double lead = getEndPoint();
  setBounds(
      (Point2D.Double) tx.transform(anchor, anchor),
      (Point2D.Double) tx.transform(lead, lead)
      );
}

 // from your code
rectangle.setBackgroundColor(ColorConstants.green);

// new code
RectangleFigure r2 = new RectangleFigure();
r2.setBounds(new Rectangle(0,0,10,10));
r2.setBackgroundColor(ColorConstants.blue);
rectangle.add(r2);

// back to your code
lws.setContents(rectangle);

 ...

RectangleFigure rect=new RectangleFigure();
rect.setBounds(new Rectangle(10, 10, 5, 25));
rect.setBorder(new SimpleRaisedBorder());
rect.setLayoutManager(new StackLayout());

RectangleFigure rect2=new RectangleFigure();
rect2.setBounds(new Rectangle(10, 10, 5, 25));
rect2.setBorder(new SimpleRaisedBorder());
rect2.setLayoutManager(new StackLayout());

...

fp.add(content);
rect2.add(fp);
rect.add(rect2);
panel.add(rect);

@Override
public void
  updateFigure(final OverlayView view, final RectangleFigure figure)
{
  super.updateFigure(view, figure);
  final RectangleOverlay overlay = downcastOverlay(view.getData());
  final double x0 = overlay.getOrigin(0);
  final double y0 = overlay.getOrigin(1);
  final double w = overlay.getExtent(0);
  final double h = overlay.getExtent(1);
  final Point2D.Double anch = new Point2D.Double(x0, y0);
  final Point2D.Double lead = new Point2D.Double(x0 + w, y0 + h);
  figure.setBounds(anch, lead);
}

Rectangle rect = new Rectangle(droppoint.x, droppoint.y, 20, 20);
Rectangle rect2 = new Rectangle(droppoint.x, droppoint.y, 100, 25);
node1.setBounds(rect);
node1.setBackgroundColor(ColorConstants.cyan);

ta.setBounds(new Point2D.Double(10, 10), new Point2D.Double(100, 100));
tb.setBounds(new Point2D.Double(210, 110), new Point2D.Double(300, 200));