def test_angle_between_vertical_line(self):
a = Point(0, 0)
b = Point(0, 10)
c = Point(10, 10)
v1 = Vector(a, b)
v2 = Vector(a, c)
self.assertEqual(45, round(Vector.angle_between(v1, v2), 4))
def test_angle_between_horizontal_line(self):
a = Point(0, 0)
b = Point(3, 0)
c = Point(3, 4)
v1 = Vector(a, b)
v2 = Vector(a, c)
self.assertEqual(53.1301, round(Vector.angle_between(v1, v2), 4))
def calculate_coeff_line_angle(self):
AC = Vector(self.A, self.C)
AB = Vector(self.A, self.B)
alpha = Vector.angle_between(AB, AC)
return 90 - alpha - self.bot_diagonal_angle