O = (0, 0)
A = (1, 0)
A1: O
A2: A
B2 = 0
B3: B2 + 1.0
A3 = TP4(B3 * 0.6, A1, A2)
B4: B3 + 1.0
B5: B4 + 1.0
B6: B5 + 1.0
B7: B6 + 1.0
B8: B7 + 1.0
B9: B8 + 1.0
B10: B9 + 1.0
B11: B10 + 1.0
B12: B11 + 1.0
A4 = TP4(B4 * 0.6, A2, A3)
A5 = TP4(B5 * 0.6, A3, A4)
A6 = TP4(B6 * 0.6, A4, A5)
A7 = TP4(B7 * 0.6, A5, A6)
A8 = TP4(B8 * 0.6, A6, A7)
A9 = TP4(B9 * 0.6, A7, A8)
A10 = TP4(B10 * 0.6, A8, A9)
A11 = TP4(B11 * 0.6, A9, A10)
A12 = TP4(B12 * 0.6, A10, A11)
C3 = Segment(A1, A2)
C4 = Segment(A2, A3)
C5 = Segment(A3, A4)
C6 = Segment(A4, A5)
C7 = Segment(A5, A6)
C8 = Segment(A6, A7)
C9 = Segment(A7, A8)
C10 = Segment(A8, A9)
C11 = Segment(A9, A10)
C12 = Segment(A10, A11)
C13 = Segment(A11, A12)
b = Line(A12, A11)
B = Point(a)
C = Intersect(a, b)
α = Angle(B, C, A12)

Tool: TP4
Input: a, A, B
Output: A''

A' = Mirror(A, B)
A'' = Rotate(A', a°, B)