#http://www.mathcurve.com/courbes2d/oeuf/oeuf.shtml
vertices = 10000
t = from 0 to (2*PI)

a = rand2(0.1, 10)
b = rand2(0.1, 10)
d = rand2(0.1, 10)

s = sin(t)
c = cos(t)

y = (sqrt(a*a - d*d*s*s) + d*c)*c
x = b*s