If you were considering how to draw graphs and pie-charts in GWT, wait no more:
DrawingArea canvas = new DrawingArea(400, 400); panel.add(canvas);
Circle circle = new Circle(100, 100, 50); circle.setFillColor("red"); canvas.add(circle);
DrawingArea canvas = new DrawingArea(400, 400); panel.add(canvas);
Circle circle = new Circle(100, 100, 50); circle.setFillColor("red"); canvas.add(circle);