def test_clip_one_intersections(self):
polygon = Polygon([(5, -5), (7, -5), (7, 8), (5, 8), (5, -5)])
traj = self.default_traj_metric_5
intersections = traj.clip(polygon)
assert len(intersections) == 1
assert intersections[0] == \
make_traj([Node(5, 0, second=5), Node(6, 0, second=6), Node(7, 0, second=7)], id='1_0', parent=traj)
def test_clip_with_empty_spatial_intersection_linestrings(self):
polygon = Polygon([
(-92.98830, 35.38896),
(-92.35109, 33.96139),
(-93.27393, 33.61437),
(-93.99904, 34.88572),
(-92.98830, 35.38896),
])
traj = make_traj([
Node(-92.00000, 35.35000, 2020, 8, 5, 21, 33),
Node(-92.10000, 35.30000, 2020, 8, 5, 21, 34),
Node(-92.48333, 35.05000, 2020, 8, 5, 21, 38),
Node(-92.68333, 34.95000, 2020, 8, 5, 21, 40),
Node(-92.80000, 34.86667, 2020, 8, 5, 21, 41),
Node(-93.15000, 34.66667, 2020, 8, 5, 21, 44),
Node(-93.31667, 34.55000, 2020, 8, 5, 21, 45),
Node(-93.66667, 34.35000, 2020, 8, 5, 21, 48),
Node(-93.88333, 34.20000, 2020, 8, 5, 21, 50),
Node(-94.00000, 34.16904, 2020, 8, 5, 21, 51),
])
result = traj.clip(polygon)
assert len(result) == 1
coords = result.get_trajectory("1_0").to_linestring().coords
expected = [
[-92.76600766934008, 34.89094857130274],
[-92.8, 34.86667],
[-93.15000000000001, 34.66667],
[-93.31667, 34.55],
[-93.66667, 34.35],
[-93.68590048921358, 34.33668617473444],
]
assert len(coords) == len(expected)
for o, e in zip(coords, expected):
assert o == approx(e, 0.1)
def test_clip_with_numerical_time_issues(self):
xmin, xmax, ymin, ymax = 116.36850352835575, 116.37029459899574, 39.904675309969896, 39.90772814977718
polygon = Polygon([(xmin, ymin), (xmin, ymax), (xmax, ymax), (xmax, ymin), (xmin, ymin)])
traj = make_traj([Node(116.36855, 39.904926, 2009, 3, 10, 11, 3, 35),
Node(116.368612, 39.904877, 2009, 3, 10, 11, 3, 37),
Node(116.368644, 39.90484, 2009, 3, 10, 11, 3, 39)])
result = traj.clip(polygon)[0].to_linestring().wkt
assert result == "LINESTRING (116.36855 39.904926, 116.368612 39.904877, 116.368644 39.90484)"
def test_clip_with_milliseconds(self):
polygon = Polygon([(5, -5), (7, -5), (8, 5), (5, 5), (5, -5)])
traj = make_traj([Node(0, 10, hour=12), Node(10, 10, hour=12, minute=10), Node(10, 0, hour=12, minute=15),
Node(6, 0, hour=12, minute=30), Node(0, 0, hour=13)])
intersection = traj.clip(polygon)[0]
assert intersection.to_linestring().wkt == "LINESTRING (7.5 0, 6 0, 5 0)"
assert intersection.get_start_time() - datetime(1970, 1, 1, 12, 24, 22, 500000) < timedelta(milliseconds=1)
assert intersection.get_end_time() == datetime(1970, 1, 1, 12, 35, 0)
def test_clip_no_node_in_poly(self):
polygon = Polygon([(1, -5), (2, -5), (2, 8), (1, 8), (1, -5)])
traj = self.default_traj_metric_5
intersections = traj.clip(polygon)
assert len(intersections) == 1
assert intersections.get_trajectory("1_0") == make_traj(
[Node(1, 0, second=1), Node(2, 0, second=2)],
id="1_0",
parent=traj)
def test_clip_two_intersections_with_same_polygon(self):
polygon = Polygon([(5, -5), (7, -5), (7, 12), (5, 12), (5, -5)])
traj = self.default_traj_metric_5
intersections = traj.clip(polygon)
assert len(intersections) == 2
assert intersections[0] == \
make_traj([Node(5, 0, second=5), Node(6, 0, second=6), Node(7, 0, second=7)], id='1_0', parent=traj)
assert intersections[1] == \
make_traj([Node(7, 10, second=23), Node(5, 10, second=25)], id='1_1', parent=traj)
def setup_method(self):
self.nodes = [
Node(0, 0, 1970, 1, 1, 0, 0, 0),
Node(6, 0, 1970, 1, 1, 0, 0, 6),
Node(10, 0, 1970, 1, 1, 0, 0, 10),
Node(10, 10, 1970, 1, 1, 0, 0, 20),
Node(0, 10, 1970, 1, 1, 0, 0, 30),
]
self.default_traj_metric = make_traj(self.nodes[:3], CRS_METRIC)
self.default_traj_latlon = make_traj(self.nodes[:3], CRS_LATLON)
self.default_traj_metric_5 = make_traj(self.nodes, CRS_METRIC)
def test_clip_pointbased_singlepoint_returns_empty(self):
polygon = Polygon([(5.1, -5), (6.4, -5), (6.4, 12), (5.1, 12),
(5.1, -5)])
traj = make_traj([
Node(),
Node(6, 0, minute=6),
Node(6.5, 0, minute=6, second=30),
Node(7, 0, minute=7),
Node(10, 0, minute=10)
])
assert traj.clip(polygon, pointbased=True) == []
def test_clip_with_duplicate_traj_points_does_not_drop_any_points(self):
polygon = Polygon([(5, -5), (7, -5), (7, 5), (5, 5), (5, -5)])
traj = make_traj([Node(), Node(6, 0, second=6), Node(6, 0, second=7), Node(10, 0, second=11),
Node(10, 10, second=20), Node(0, 10, second=30)])
intersections = traj.clip(polygon)
assert len(intersections) == 1
assert intersections[0] == \
make_traj([Node(5, 0, second=5), Node(6, 0, second=6), Node(6, 0, second=7), Node(7, 0, second=8)], id='1_0', parent=traj)
def test_clip_two_intersections_with_same_polygon(self):
polygon = Polygon([(5, -5), (7, -5), (7, 12), (5, 12), (5, -5)])
traj = self.default_traj_metric_5
intersections = traj.clip(polygon)
assert len(intersections) == 2
assert intersections.get_trajectory("1_0") == make_traj(
[Node(5, 0, second=5),
Node(6, 0, second=6),
Node(7, 0, second=7)],
id="1_0",
parent=traj,
)
assert intersections.get_trajectory("1_1") == make_traj(
[Node(7, 10, second=23),
Node(5, 10, second=25)],
id="1_1",
parent=traj)
def test_clip_pointbased(self):
polygon = Polygon([(5.1, -5), (7.5, -5), (7.5, 12), (5.1, 12), (5.1, -5)])
traj = make_traj([Node(), Node(6, 0, minute=6), Node(6.5, 0, minute=6, second=30), Node(7, 0, minute=7),
Node(10, 0, minute=10)])
intersections = traj.clip(polygon, point_based=True)
assert len(intersections) == 1
assert intersections[0] == \
make_traj([Node(6, 0, minute=6), Node(6.5, 0, minute=6, second=30), Node(7, 0, minute=7)], id='1_0', parent=traj)
def test_clip_with_one_intersection_reversed(self):
polygon = Polygon([(5, -5), (7, -5), (7, 5), (5, 5), (5, -5)])
traj = make_traj([Node(10, 0), Node(6, 0, minute=10), Node(0, 0, minute=20)])
intersections = traj.clip(polygon)
assert len(intersections) == 1
assert intersections[0] == \
make_traj([Node(7, 0, minute=7, second=30), Node(6, 0, minute=10), Node(5, 0, minute=11, second=40)], id='1_0', parent=traj)
def test_clip_interpolated_singlepoint(self):
polygon = Polygon([(5.1, -5), (6.4, -5), (6.4, 12), (5.1, 12), (5.1, -5)])
traj = make_traj([Node(0, 0, minute=5), Node(6, 0, minute=6), Node(6.5, 0, minute=6, second=30)])
intersections = traj.clip(polygon, point_based=False)
assert len(intersections) == 1
assert intersections[0] == \
make_traj([Node(5.1, 0, minute=5, second=51), Node(6, 0, minute=6), Node(6.4, 0, minute=6, second=24)], id='1_0', parent=traj)