Überlappende Fläche = 1

p = 0 (slider from 0 to 6.28, step 0.1)
A: (2.0 * cos(p), 2.0 * sin(p))
E = Intersect(xAxis, yAxis)
Vieleck1, b, a, c, d, D, E_1 = Polygon(E, A, 4.0)
C = (-1, -1)
X = (1, -1)
Vieleck2, c_1, f, e, g, G, H_1 = Polygon(C, X, 4.0)
H = Intersect(d, e)
F = Intersect(f, b)