def __init__(self, style=None, x=0, y=0, r1=80, r2=None):
if r2 == None:
r2 = r1
super(Ellipse, self).__init__(style, Point(x, y))
pathitems = []
p1 = Point(x - r1, y)
p2 = Point(x, y - r2)
p3 = Point(x + r1, y)
p4 = Point(x, y + r2)
self.path = metapost.path.path(
[
smoothknot(*p1.toTuple()),
tensioncurve(),
smoothknot(*p2.toTuple()),
tensioncurve(),
smoothknot(*p3.toTuple()),
tensioncurve(),
smoothknot(*p4.toTuple()),
tensioncurve(),
]
)
self.addJointPoint(Point(x - r1, y))
self.addJointPoint(Point(x, y - r2))
self.addJointPoint(Point(x + r1, y))
self.addJointPoint(Point(x, y + r2))
