def test_segment_parallel_polygon_extends_outside_no_intersection(self):
p = np.array([[0, 0, 0], [1, 0, 0], [1, 1, 0], [0, 1, 0]]).T
start = np.array([0.5, 0.5, 1])
end = np.array([1.7, 1.7, 1])
d, cp = cg.dist_segments_polygon(start, end, p)
known_d = np.array([1])
self.assertTrue(np.allclose(d, known_d))
self.assertTrue(cp[2] == 0) # x and y coordinate of closest point is not clear
def test_segment_in_polygon(self):
p = np.array([[0, 0, 0], [1, 0, 0], [1, 1, 0], [0, 1, 0]]).T
start = np.array([0.5, 0.5, 0])
end = np.array([0.7, 0.7, 0])
d, cp = cg.dist_segments_polygon(start, end, p)
known_d = np.array([0])
self.assertTrue(np.allclose(d, known_d))
self.assertTrue(cp[2] == 0) # x and y coordinate of closest point is not clear
def test_segment_parallel_polygon_extends_outside_both_sides(self):
p = np.array([[0, 0, 0], [1, 0, 0], [1, 1, 0], [0, 1, 0]]).T
start = np.array([-0.5, -0.5, 0])
end = np.array([1.7, 1.7, 0])
d, cp = cg.dist_segments_polygon(start, end, p)
known_d = np.array([0])
assert np.allclose(d, known_d)
assert cp[2] == 0 # x and y coordinate of closest point is not clear
def test_segment_no_intersection_no_rot(self):
p = np.array([[0, 0, 0], [1, 0, 0], [1, 1, 0], [0, 1, 0]]).T
start = np.array([1.5, 0.5, -1])
end = np.array([1.5, 0.5, 1])
d, cp = cg.dist_segments_polygon(start, end, p)
known_d = np.array([0.5])
known_cp = np.array([1.5, 0.5, 0]).reshape((-1, 1))
self.assertTrue(np.allclose(d, known_d))
self.assertTrue(np.allclose(cp, known_cp))
def test_segment_intersects_in_endpoint_no_rot(self):
p = np.array([[0, 0, 0], [1, 0, 0], [1, 1, 0], [0, 1, 0]]).T
start = np.array([0.5, 0.5, 0])
end = np.array([0.5, 0.5, 1])
d, cp = cg.dist_segments_polygon(start, end, p)
known_d = np.array([0])
known_cp = np.array([0.5, 0.5, 0]).reshape((-1, 1))
assert np.allclose(d, known_d)
assert np.allclose(cp, known_cp)
