def test_reduced_circle(self):
point_on = Vector2D(1.0, .0)
circle = MyCircle(Vector2D(.0, .0), 1.0)
self.assertTrue(circle.is_point_on_edge(point_on))
r = 0.75
angle = 3 * pi / 4.0
p0 = Vector2D(r * cos(angle) + 0.25, r * sin(angle))
p1 = Vector2D(-0.5, .0);
line = Line2D(circle.centre, point_on)
red_circle_new0 = reduced_circle_new(point_on, p0, line)
red_circle_new1 = reduced_circle_new(point_on, p1, line)
self.assertEqual(0.25, red_circle_new0.centre.get_x())
self.assertEqual(0.0, red_circle_new0.centre.get_y())
self.assertEqual(0.75, red_circle_new0.radius)
self.assertEqual(0.25, red_circle_new1.centre.get_x())
self.assertEqual(0.0, red_circle_new1.centre.get_y())
self.assertEqual(0.75, red_circle_new1.radius)
self.test_triangle_obtuse()
for i in range(500):
self.test_random()
def test_random(self):
point_on = self.get_random_point()
point_centre = self.get_random_point()
norm = point_on.sub(point_centre).norm()
circle = MyCircle(point_centre, norm)
self.assertTrue(circle.is_point_on_edge(point_on))
point_along = self.get_random_point()
point_aim = self.get_random_point()
new_circle_new = reduced_circle_new(point_on, point_aim, Line2D(circle.centre, point_along))
self.assertTrue(new_circle_new.is_point_on_edge(point_on))
self.assertTrue(new_circle_new.is_point_on_edge(point_aim))