~Full screen circle~
ellipse e0 = 0,0,700,700, blue;

~Circle~
ellipse e1 = 10, 10, 100,100, red;

~Ellipse~
ellipse e2 = 120, 10, 50, 100, red;

~Thin and long ellipse~
ellipse e3 = 180, 10, 300, 2, red;

drawloop{}