z_o

ξ

t = 6.3 (slider from 0 to 6.3)
zr: 1.2
Z_0 = (4.209998546804611, 1.8499985468046107)
PR_0 = (7.72, 1.98)
γ_{R_o} = Circle(Z_0, PR_0)
R_o = Segment(Z_0, PR_0)
Pr_0 = (3.3947653089446557, 3.400011625563116)
γ_{r_o} = Circle(Z_0, Pr_0)
r_o = Segment(Z_0, Pr_0)
zR: 0.9
γ_{R} = Dilate(γ_{R_o}, zR, Z_0)
γ_{r} = Dilate(γ_{r_o}, zr, Z_0)
PR = Point(γ_{R})
Rr = Point(γ_{r})
r = Segment(Z_0, Rr)
R = Segment(Z_0, PR)
G = Point(γ_{R_o})
c = Circle(Z_0, (r_o * 0.95))
X: Z_0 + (r * (cos(t), sin(t)))
f = Ray(Z_0, X)
PD = Intersect(γ_{R}, f)
r_D = Segment(X, PD)
K_D = Circle(X, PD)