public DrawableRectangle(Point2D startPoint, Point2D endPoint) { _startPoint = startPoint; _endPoint = endPoint; }
public DrawableEllipse(Point2D startPoint, Point2D endPoint) { _startPoint = startPoint; _endPoint = endPoint; }
public DrawableCircle(Point2D startPoint, Point2D endPoint) { _startPoint = startPoint; _endPoint = endPoint; }