def test_it_should_find_the_correct_distance_when_p1_equals_p2(self):
self.assertEqual(point_to_point_distance(
Point(0, 0),
Point(0, 0),
), 0)
self.assertEqual(point_to_point_distance(
Point(1, 1),
Point(1, 1),
), 0)
def test_it_should_always_return_only_the_first_and_last_points_in_a_list_if_a_large_enough_error_limit_is_given(
self):
self.assertEqual(waringo_henrich_smooth(self.points2, 1000), [
Point(-34, 134),
Point(30, 12),
])
self.assertEqual(waringo_henrich_smooth(self.points1, 1000), [
Point(0, 0),
Point(638, 140),
])
def test_it_should_find_the_correct_distance_in_a_normal_case(self):
self.assertAlmostEqual(
point_to_point_distance(
Point(0, 0),
Point(10, 10),
), 14.1421, 4)
self.assertAlmostEqual(
point_to_point_distance(
Point(10, -5),
Point(-10, 5),
), 22.3607, 4)
def test_it_should_find_the_correct_distance_when_the_line_slope_is_0(
self):
self.assertEqual(point_to_point_distance(
Point(0, 0),
Point(10, 0),
), 10)
self.assertEqual(
point_to_point_distance(
Point(0, -10),
Point(1000, -10),
), 1000)
def test_it_should_return_the_given_list_if_the_list_has_a_length_less_than_3(
self):
self.assertEqual(waringo_henrich_smooth([], 0), [])
self.assertEqual(waringo_henrich_smooth([Point(0, 0)], 0),
[Point(0, 0)])
self.assertEqual(waringo_henrich_smooth(
[Point(0, 0), Point(1, 1)], 0),
[Point(0, 0), Point(1, 1)])
def test_it_should_find_the_correct_distance_when_the_line_has_length_0(
self):
self.assertEqual(
point_to_line_distance(
Point(0, 0),
Point(5, 0),
Point(0, 0),
), 5)
self.assertEqual(
point_to_line_distance(
Point(-10, -10),
Point(10, 10),
Point(-10, -10),
), math.sqrt(20.0 * 20.0 + 20.0 * 20.0))
def test_it_should_find_the_correct_distance_when_the_line_slope_is_infinity(
self):
self.assertEqual(
point_to_line_distance(
Point(0, 0),
Point(5, -100),
Point(0, 10),
), 5)
self.assertEqual(
point_to_line_distance(
Point(-20, -2000),
Point(5, 0),
Point(-20, 10),
), 25)
def test_it_should_smooth_paths_to_within_the_specified_degree_of_error(
self):
self.assertEqual(waringo_henrich_smooth(self.points2, 1), [
Point(-34, 134),
Point(0, 128),
Point(21, 121),
Point(35, 114),
Point(42, 108),
Point(44, 108),
Point(59, 94),
Point(77, 67),
Point(81, 56),
Point(82, 44),
Point(78, 30),
Point(76, 29),
Point(73, 22),
Point(62, 15),
Point(53, 12),
Point(30, 12),
])
self.assertEqual(waringo_henrich_smooth(self.points2, 1.5), [
Point(-34, 134),
Point(0, 128),
Point(21, 121),
Point(44, 108),
Point(59, 94),
Point(77, 67),
Point(81, 56),
Point(82, 44),
Point(78, 30),
Point(73, 22),
Point(53, 12),
Point(30, 12),
])
self.assertEqual(waringo_henrich_smooth(self.points2, 2), [
Point(-34, 134),
Point(21, 121),
Point(44, 108),
Point(59, 94),
Point(77, 67),
Point(82, 44),
Point(73, 22),
Point(53, 12),
Point(30, 12),
])
self.assertEqual(waringo_henrich_smooth(self.points1, 30), [
Point(0, 0),
Point(198, 28),
Point(214, 100),
Point(326, 76),
Point(438, 124),
Point(502, 76),
Point(638, 140),
])
self.assertEqual(waringo_henrich_smooth(self.points1, 60), [
Point(0, 0),
Point(638, 140),
])
def setUp(self):
# Random line
self.points1 = [
Point(0, 0),
Point(62, 4),
Point(102, 44),
Point(198, 28),
Point(214, 100),
Point(326, 76),
Point(406, 92),
Point(438, 124),
Point(502, 76),
Point(574, 108),
Point(638, 140),
]
# Road bike handlebar contour:
# 2014 Specialized Comp Alloy Tarmac Bend 44cm
self.points2 = [
Point(-34, 134),
Point(-33, 134),
Point(-31, 133),
Point(-30, 133),
Point(-29, 133),
Point(-28, 133),
Point(-27, 132),
Point(-26, 132),
Point(-25, 132),
Point(-24, 132),
Point(-23, 132),
Point(-21, 131),
Point(-20, 131),
Point(-19, 131),
Point(-18, 131),
Point(-17, 131),
Point(-15, 130),
Point(-14, 130),
Point(-13, 130),
Point(-11, 130),
Point(-10, 129),
Point(-9, 129),
Point(-8, 129),
Point(-7, 129),
Point(-5, 128),
Point(-4, 128),
Point(-3, 128),
Point(-2, 128),
Point(0, 128),
Point(1, 127),
Point(3, 127),
Point(4, 126),
Point(5, 126),
Point(6, 126),
Point(7, 126),
Point(8, 125),
Point(9, 125),
Point(11, 125),
Point(12, 124),
Point(14, 124),
Point(15, 123),
Point(16, 123),
Point(17, 122),
Point(18, 122),
Point(19, 121),
Point(21, 121),
Point(22, 120),
Point(23, 120),
Point(24, 119),
Point(26, 118),
Point(27, 118),
Point(28, 117),
Point(29, 116),
Point(30, 116),
Point(31, 116),
Point(32, 115),
Point(33, 114),
Point(35, 114),
Point(36, 113),
Point(37, 112),
Point(38, 111),
Point(40, 110),
Point(41, 110),
Point(42, 109),
Point(42, 108),
Point(44, 108),
Point(44, 107),
Point(45, 106),
Point(46, 105),
Point(47, 105),
Point(48, 104),
Point(49, 103),
Point(50, 102),
Point(51, 101),
Point(52, 101),
Point(52, 100),
Point(53, 99),
Point(54, 98),
Point(55, 97),
Point(56, 96),
Point(57, 95),
Point(58, 94),
Point(59, 94),
Point(59, 93),
Point(60, 92),
Point(61, 91),
Point(62, 90),
Point(63, 89),
Point(63, 88),
Point(64, 87),
Point(65, 86),
Point(66, 84),
Point(67, 83),
Point(68, 82),
Point(68, 81),
Point(69, 80),
Point(70, 79),
Point(70, 78),
Point(71, 77),
Point(72, 76),
Point(72, 75),
Point(73, 73),
Point(74, 72),
Point(74, 71),
Point(75, 70),
Point(75, 69),
Point(76, 68),
Point(77, 67),
Point(77, 66),
Point(77, 65),
Point(78, 63),
Point(79, 62),
Point(79, 60),
Point(80, 59),
Point(80, 58),
Point(81, 56),
Point(81, 55),
Point(81, 54),
Point(81, 53),
Point(82, 51),
Point(82, 50),
Point(82, 48),
Point(82, 47),
Point(82, 46),
Point(82, 45),
Point(82, 44),
Point(81, 43),
Point(81, 41),
Point(81, 39),
Point(81, 38),
Point(80, 37),
Point(80, 36),
Point(79, 35),
Point(79, 33),
Point(79, 32),
Point(78, 31),
Point(78, 30),
Point(76, 29),
Point(76, 27),
Point(75, 26),
Point(74, 25),
Point(74, 24),
Point(73, 23),
Point(73, 22),
Point(72, 22),
Point(71, 21),
Point(70, 20),
Point(69, 19),
Point(68, 19),
Point(67, 18),
Point(66, 17),
Point(65, 17),
Point(64, 16),
Point(63, 16),
Point(62, 15),
Point(62, 15),
Point(61, 15),
Point(60, 15),
Point(60, 14),
Point(58, 14),
Point(57, 13),
Point(56, 13),
Point(55, 13),
Point(53, 12),
Point(52, 12),
Point(51, 12),
Point(50, 12),
Point(48, 12),
Point(47, 12),
Point(45, 12),
Point(44, 12),
Point(43, 12),
Point(42, 12),
Point(41, 12),
Point(39, 12),
Point(39, 12),
Point(37, 12),
Point(36, 12),
Point(34, 12),
Point(33, 12),
Point(33, 12),
Point(32, 12),
Point(31, 12),
Point(30, 12),
Point(30, 12),
]
def test_it_should_find_the_correct_distance_in_a_normal_case(self):
self.assertAlmostEqual(
point_to_line_distance(
Point(0, 0),
Point(0, 1),
Point(1, 1),
), 0.7071, 4)
self.assertAlmostEqual(
point_to_line_distance(
Point(0, 0),
Point(5, 1),
Point(10, 1),
), 0.4975, 4)
self.assertAlmostEqual(
point_to_line_distance(
Point(0, 0),
Point(6, 1.1),
Point(10, 1),
), 0.4975, 4)
self.assertAlmostEqual(
point_to_line_distance(
Point(-10, 10),
Point(-4, 8),
Point(-3, 5),
), 1.8600, 4)