三角測量(10)
Author: 藍邦偉  老師

$O$

$H$

$三角測量\;(10) $

A = (14.96, 1.24)
B = (-2.24, 1.06)
D = (14.98, -0.78)
C = Corner(1)
多邊形1, a, b, c, d = Polygon(A, B, C, D)
E = (8.66, 1.14)
F = (8.68, 8.66)
G = Corner(4)
e = Segment(B, E)
多邊形2, b_1, e_1, f, g = Polygon(B, E, F, G)
H = Point(e)
h: y = y(H)
I = Point(h)
i: x = x(I)
J = Point(i)
u = Vector(H, I)
t = 0.108 (slider from 0 to 1, step 0.0010)
H_1: H + t * u
j = Segment(J, I)
k = Segment(J, H_1)
H_2: H_1 + (-0.4, 0)
H_3: H_1 + (0.4, 0)
H_4: H_1 + (0, -0.3)
α = Angle(I, H_1, J)
H_5: H_1 + (0, 0.3)