Gris a

A = (-0.0010381459735019916, -0.001038145973501936)
B = (-0.0010381459735019916, 0.598961854026498)
C = (0.9989618540264982, 0.598961854026498)
D = (0.9989618540264982, -0.001038145973501936)
poly1, a_1, b, c, d = Polygon(A, B, C, D)
a = 0.76 (slider from 0 to 1, step 0.01)
E: (a - 0.02, 0.0)
G: (a, -(0.13))
F: E + (0.04, 0.0)
poly2, g, e, f = Polygon(E, F, G)