def trajectory_point_generator(start_airport,
end_airport,
start_time,
object_id='ANON',
desired_speed=800,
seconds_between_points=60,
minimum_num_points=10):
"""trajectory_point_generator(start_airport: Airport,
end_airport: Airport,
start_time=Timestamp (datetime.datetime),
object_id='ANON' (string),
desired_speed=60 (float, km/h),
seconds_between_points=60 (int),
minimum_num_points=10 (int)) -> iterable of points
Generate a sequence of points that go from the starting airport to
the ending airport with the desired speed and time between points.
"""
start_position = TerrestrialTrajectoryPoint()
start_position[0] = start_airport.position[0]
start_position[1] = start_airport.position[1]
end_position = TerrestrialTrajectoryPoint()
end_position[0] = end_airport.position[0]
end_position[1] = end_airport.position[1]
travel_time = time_between_positions(start_position,
end_position,
desired_speed=desired_speed)
num_points = num_points_between_positions(
start_position,
end_position,
desired_speed=desired_speed,
seconds_between_points=seconds_between_points)
if num_points < minimum_num_points:
num_points = minimum_num_points
start_position.object_id = object_id
start_position.timestamp = start_time
end_position.object_id = object_id
end_position.timestamp = start_time + travel_time
point_list = [start_position]
if num_points == 2:
point_list.append(end_position)
else:
interpolant_increment = 1.0 / (num_points - 1)
for i in range(1, num_points - 1):
interpolant = i * interpolant_increment
point_list.append(
geomath.interpolate(start_position, end_position, interpolant))
point_list.append(end_position)
return point_list
def test_terrestrial_distance():
error_count = 0
albuquerque = TerrestrialTrajectoryPoint(-106.6504, 35.0844)
dallas = TerrestrialTrajectoryPoint(-96.8716, 32.8205)
el_paso = TerrestrialTrajectoryPoint(-106.4850, 31.7619)
san_antonio = TerrestrialTrajectoryPoint(-98.6544, 29.4813)
houston = TerrestrialTrajectoryPoint(-74.0060, 29.8168)
ep_to_dal = TerrestrialTrajectory.from_position_list([el_paso, dallas])
sa_to_hou = TerrestrialTrajectory.from_position_list(
[san_antonio, houston])
sa_to_abq = TerrestrialTrajectory.from_position_list(
[san_antonio, albuquerque])
print("Testing Terrestrial Distance")
expected = 369.764
actual = geomath.distance(albuquerque, el_paso)
error_count += verify_result(
actual, expected,
"TerrestrialTrajectoryPoint to TerrestrialTrajectoryPoint")
expected = 349.276
actual = geomath.distance(ep_to_dal, sa_to_hou)
error_count += verify_result(
actual, expected, "TerrestrialTrajectory to TerrestrialTrajectory")
expected = 0.0
actual = geomath.distance(ep_to_dal, sa_to_abq)
error_count += verify_result(
actual, expected,
"TerrestrialTrajectory to TerrestrialTrajectory Intersecting")
expected = 975.674
actual = geomath.distance(albuquerque, sa_to_hou)
error_count += verify_result(
actual, expected,
"TerrestrialTrajectoryPoint to TerrestrialTrajectory")
actual = geomath.distance(sa_to_hou, albuquerque)
error_count += verify_result(
actual, expected,
"TerrestrialTrajectory to TerrestrialTrajectoryPoint")
return error_count
def make_sample_trajectory():
coordinates = [(0, 80), (90, 80), (180, 80), (-90, 80), (0, 80)]
time_strings = [
"2000-01-01 00:00:00", "2000-01-01 02:00:00", "2000-01-01 03:00:00",
"2000-01-01 04:00:00", "2000-01-01 06:00:00"
]
trajectory = TerrestrialTrajectory()
for (coords, time_string) in zip(coordinates, time_strings):
point = TerrestrialTrajectoryPoint(coords)
point.object_id = 'terrestrial_dg_test'
point.timestamp = datetime.datetime.strptime(time_string,
'%Y-%m-%d %H:%M:%S')
trajectory.append(point)
return trajectory
def test_compute_bounding_box_after_pickle():
error_count = 0
albuquerque = TerrestrialTrajectoryPoint(-106.6504, 35.0844)
albuquerque.timestamp = datetime.datetime(year=2020,
month=1,
day=1,
hour=12)
san_francisco = TerrestrialTrajectoryPoint(-122.4194, 37.7749)
san_francisco.timestamp = albuquerque.timestamp + datetime.timedelta(
hours=3)
tokyo = TerrestrialTrajectoryPoint(-221.6917, 35.6895)
tokyo.timestamp = albuquerque.timestamp + datetime.timedelta(hours=12)
trajectory_generator = TrajectoryPointSource()
trajectory_generator.start_point = albuquerque
trajectory_generator.end_point = tokyo
trajectory_generator.num_points = 20
print("DEBUG: TerrestrialTrajectory: {}".format(TerrestrialTrajectory))
albuquerque_to_tokyo = TerrestrialTrajectory.from_position_list(
list(trajectory_generator.points()))
expected_min_corner = tracktable.domain.domain_class_for_object(
albuquerque, 'BasePoint')()
expected_max_corner = tracktable.domain.domain_class_for_object(
albuquerque, 'BasePoint')()
expected_min_corner[0] = min(albuquerque[0], tokyo[0])
expected_min_corner[1] = min(albuquerque[1], tokyo[1])
expected_max_corner[0] = max(albuquerque[0], tokyo[0])
expected_max_corner[1] = max(albuquerque[1], tokyo[1])
bbox_before_pickling = geomath.compute_bounding_box(albuquerque_to_tokyo)
store = io.BytesIO()
pickle.dump(albuquerque_to_tokyo, store)
store.seek(0)
restored_trajectory = pickle.load(store)
bbox_after_pickling = geomath.compute_bounding_box(restored_trajectory)
print("Bounding box before pickling: ({} {}) - ({} {})".format(
bbox_before_pickling.min_corner[0], bbox_before_pickling.min_corner[1],
bbox_before_pickling.max_corner[0],
bbox_before_pickling.max_corner[1]))
print("Bounding box after pickling: ({} {}) - ({} {})".format(
bbox_after_pickling.min_corner[0], bbox_after_pickling.min_corner[1],
bbox_after_pickling.max_corner[0], bbox_after_pickling.max_corner[1]))
bbox_min_delta = (bbox_after_pickling.min_corner[0] -
bbox_before_pickling.min_corner[0],
bbox_after_pickling.min_corner[1] -
bbox_before_pickling.min_corner[1])
bbox_max_delta = (bbox_after_pickling.max_corner[0] -
bbox_before_pickling.max_corner[0],
bbox_after_pickling.max_corner[1] -
bbox_before_pickling.max_corner[1])
if (math.fabs(bbox_min_delta[0]) > 0.01
or math.fabs(bbox_min_delta[1]) > 0.01
or math.fabs(bbox_max_delta[0]) > 0.01
or math.fabs(bbox_max_delta[1]) > 0.01):
print(
("ERROR: Expected delta between bounding box before and after "
"pickling to be zero. Delta for minimum corner is {}. "
"Delta for maximum corner is {}.").format(bbox_min_delta,
bbox_max_delta))
error_count += 1
return error_count
def test_compute_bounding_box():
error_count = 0
bbox_type = TerrestrialTrajectoryPoint.domain_classes['BoundingBox']
expected_min_corner = TerrestrialTrajectoryPoint.domain_classes[
'BasePoint']()
expected_max_corner = TerrestrialTrajectoryPoint.domain_classes[
'BasePoint']()
albuquerque = TerrestrialTrajectoryPoint(-106.6504, 35.0844)
san_francisco = TerrestrialTrajectoryPoint(-122.4194, 37.7749)
tokyo = TerrestrialTrajectoryPoint(-221.6917, 35.6895)
small_traj = TrajectoryPointSource()
small_traj.start_point = albuquerque
small_traj.end_point = san_francisco
small_traj.num_points = 2
long_traj = TrajectoryPointSource()
long_traj.start_point = tokyo
long_traj.end_point = san_francisco
long_traj.num_points = 2
#Test smallish basic bounding box
expected_min_corner[0] = san_francisco[0]
expected_min_corner[1] = albuquerque[1]
expected_max_corner[0] = albuquerque[0]
expected_max_corner[1] = san_francisco[1]
expected = bbox_type(expected_min_corner, expected_max_corner)
map_bbox = geomath.compute_bounding_box(small_traj.points())
error_count += verify_result(expected, map_bbox, "Basic small box")
#Test larger basic bounding box
expected_min_corner[0] = tokyo[0]
expected_min_corner[1] = tokyo[1]
expected_max_corner[0] = san_francisco[0]
expected_max_corner[1] = san_francisco[1]
expected = bbox_type(expected_min_corner, expected_max_corner)
map_bbox = geomath.compute_bounding_box(long_traj.points())
error_count += verify_result(expected, map_bbox, "Basic large box")
#Test smallish bounding box with buffer
lon_buffer = .2
lat_buffer = .5
expected_min_corner[0] = san_francisco[0] - (
(albuquerque[0] - san_francisco[0]) * lon_buffer)
expected_min_corner[1] = albuquerque[1] - (
(san_francisco[1] - albuquerque[1]) * lat_buffer)
expected_max_corner[0] = albuquerque[0] + (
(albuquerque[0] - san_francisco[0]) * lon_buffer)
expected_max_corner[1] = san_francisco[1] + (
(san_francisco[1] - albuquerque[1]) * lat_buffer)
expected = bbox_type(expected_min_corner, expected_max_corner)
map_bbox = geomath.compute_bounding_box(small_traj.points(),
(lon_buffer, lat_buffer))
error_count += verify_result(expected, map_bbox, "Buffered small box")
#Test larger basic bounding box with buffer
lon_buffer = .2
lat_buffer = .1
expected_min_corner[0] = tokyo[0] - (
(san_francisco[0] - tokyo[0]) * lon_buffer)
expected_min_corner[1] = tokyo[1] - (
(san_francisco[1] - tokyo[1]) * lat_buffer)
expected_max_corner[0] = san_francisco[0] + (
(san_francisco[0] - tokyo[0]) * lon_buffer)
expected_max_corner[1] = san_francisco[1] + (
(san_francisco[1] - tokyo[1]) * lat_buffer)
expected = bbox_type(expected_min_corner, expected_max_corner)
map_bbox = geomath.compute_bounding_box(long_traj.points(),
(lon_buffer, lat_buffer))
error_count += verify_result(expected, map_bbox, "Buffered large box")
#Test cartesian based boxes
c_bbox_type = Cartesian2dTrajectoryPoint.domain_classes['BoundingBox']
c_expected_min_corner = Cartesian2dTrajectoryPoint.domain_classes[
'BasePoint']()
c_expected_max_corner = Cartesian2dTrajectoryPoint.domain_classes[
'BasePoint']()
point0 = Cartesian2dTrajectoryPoint(0, 0)
point1 = Cartesian2dTrajectoryPoint(1, 1)
point2 = Cartesian2dTrajectoryPoint(2, 2)
c_expected_min_corner = Cartesian2dTrajectoryPoint(0, 0)
c_expected_max_corner = Cartesian2dTrajectoryPoint(2, 2)
expected = c_bbox_type(c_expected_min_corner, c_expected_max_corner)
map_bbox = geomath.compute_bounding_box([point0, point1, point2])
error_count += verify_result(expected, map_bbox, "Basic cartesian box")
#Test cartesian box with buffer
x_buffer = .5
y_buffer = 1.
c_expected_min_corner[0] = point0[0] - ((point2[0] - point0[0]) * x_buffer)
c_expected_min_corner[1] = point0[1] - ((point2[1] - point0[1]) * y_buffer)
c_expected_max_corner[0] = point2[0] + ((point2[0] - point0[0]) * x_buffer)
c_expected_max_corner[1] = point2[1] + ((point2[1] - point0[1]) * y_buffer)
expected = c_bbox_type(c_expected_min_corner, c_expected_max_corner)
map_bbox = geomath.compute_bounding_box([point0, point1, point2],
(x_buffer, y_buffer))
error_count += verify_result(expected, map_bbox, "Buffered cartesian box")
# Test error conditions
map_bbox = geomath.compute_bounding_box([])
if (map_bbox != None):
sys.stderr.write('ERROR: Empty point sequence did not return None')
error_count += 1
map_bbox = geomath.compute_bounding_box(long_traj.points(), (1.0, ))
if (map_bbox != None):
sys.stderr.write('ERROR: Buffer tuple length of 1 did not return None')
error_count += 1
map_bbox = geomath.compute_bounding_box(long_traj.points(),
(1.0, 2.0, 3.0))
if (map_bbox != None):
sys.stderr.write('ERROR: Buffer tuple length of 3 did not return None')
error_count += 1
return error_count
def test_trajectory():
print("Testing Trajectory class.")
error_count = 0
right_now = datetime.datetime.now(pytz.utc)
boston = TerrestrialTrajectoryPoint(-71.0636, 42.3581)
boston.timestamp = right_now
boston.object_id = 'ContinentalExpress'
boston.set_property('favorite_food', 'baked_beans')
boston.set_property('name', 'Boston')
miami = TerrestrialTrajectoryPoint(-80.2241, 25.7877)
miami.timestamp = right_now + datetime.timedelta(hours=4)
miami.object_id = 'ContinentalExpress'
miami.set_property('favorite_food', 'cuban_sandwich')
miami.set_property('name', 'Miami')
san_francisco = TerrestrialTrajectoryPoint(-122.4167, 37.7833)
san_francisco.timestamp = right_now + datetime.timedelta(hours=8)
san_francisco.object_id = 'ContinentalExpress'
san_francisco.set_property('favorite_food', 'Ghirardelli chocolate')
san_francisco.set_property('name', 'San Francisco')
seattle = TerrestrialTrajectoryPoint(-122.3331, 47.6097)
seattle.timestamp = right_now + datetime.timedelta(hours=12)
seattle.object_id = 'ContinentalExpress'
seattle.set_property('favorite_food', 'seafood')
seattle.set_property('name', 'Seattle')
boston_return = TerrestrialTrajectoryPoint(-71.0636, 42.3581)
boston_return.timestamp = right_now + datetime.timedelta(hours=16)
boston_return.object_id = 'ContinentalExpress'
boston_return.set_property('favorite_food', 'baked_beans')
boston_return.set_property('name', 'Boston')
round_trip = [boston, miami, san_francisco, seattle, boston_return]
my_trajectory = TerrestrialTrajectory.from_position_list(round_trip)
print("Testing from_position_list")
if len(my_trajectory) != 5:
sys.stderr.write(
'ERROR: Expected length of trajectory to be 5 points but it was {}\n'
.format(len(my_trajectory)))
error_count += 1
print("Sanity-checking first and last points")
restored_point = my_trajectory[0]
if restored_point != boston:
sys.stderr.write(
'ERROR: Expected first point in trajectory to be Boston. Instead it claims to be {}. Dumps of original and restored points follow.\n'
.format(restored_point.property('name')))
sys.stderr.write(str(boston))
sys.stderr.write('\n')
sys.stderr.write(str(my_trajectory[0]))
sys.stderr.write('\n')
error_count += 1
if my_trajectory[-1] != boston_return:
sys.stderr.write(
'ERROR: Expected last point in trajectory to be Boston. Instead it claims to be {}.\n'
.format(my_trajectory[-1].property('name')))
error_count += 1
print("Testing duration")
duration = my_trajectory.duration
if (duration != datetime.timedelta(hours=16)):
sys.stderr.write(
'ERROR: Expected duration to be 16 hours. Instead it claims to be {}.\n'
.format(duration))
error_count += 1
print("Testing time_at_fraction, 0.25")
first_quarter_time = geomath.time_at_fraction(my_trajectory, 0.25)
delta = my_trajectory[-1].timestamp - right_now
expected_first_quarter_time = right_now + (delta // 4)
error_count += verify_time(expected_first_quarter_time, first_quarter_time,
"Time at fraction 0.25")
print("Testing time_at_fraction, 0.75")
last_quarter_time = geomath.time_at_fraction(my_trajectory, 0.75)
delta = my_trajectory[-1].timestamp - right_now
expected_last_quarter_time = right_now + ((3 * delta) // 4)
error_count += verify_time(expected_last_quarter_time, last_quarter_time,
"Time at fraction 0.75")
print("Testing time_at_fraction, 0.5")
midpoint_time = geomath.time_at_fraction(my_trajectory, 0.5)
expected_midpoint_time = (right_now +
(my_trajectory[-1].timestamp - right_now) // 2)
error_count += verify_time(expected_midpoint_time, midpoint_time,
"Time at fraction 0.5")
print("Testing time_at_fraction, 0.0")
start_time = geomath.time_at_fraction(my_trajectory, 0.0)
expected_start_time = right_now
error_count += verify_time(expected_start_time, start_time,
"Time at fraction 0.0")
print("Testing time_at_fraction, 1.0")
end_time = geomath.time_at_fraction(my_trajectory, 1.0)
expected_end_time = my_trajectory[-1].timestamp
error_count += verify_time(expected_end_time, end_time,
"Time at fraction 1.0")
print("Testing time_at_fraction, -0.5")
before_time = geomath.time_at_fraction(my_trajectory, -0.5)
expected_before_time = right_now
error_count += verify_time(expected_before_time, before_time,
"Time at fraction -0.5")
print("Testing time_at_fraction, 1.5")
after_time = geomath.time_at_fraction(my_trajectory, 1.5)
expected_after_time = my_trajectory[-1].timestamp
error_count += verify_time(expected_after_time, after_time,
"Time at fraction 1.5")
print("Testing time_at_fraction, 0.33")
first_third_time = geomath.time_at_fraction(my_trajectory, 1.0 / 3.0)
expected_third_quarter_time = (
right_now + (my_trajectory[-1].timestamp - right_now) // 3)
error_count += verify_time(expected_third_quarter_time, first_third_time,
"Time at fraction 0.33")
print("Testing time_at_fraction, No Points")
empty_trajectory = TerrestrialTrajectory()
empty_time = geomath.time_at_fraction(empty_trajectory, 0.5)
error_count += verify_time(
datetime.datetime(1900, 1, 1, 0, 0, 0, 0, pytz.utc), empty_time,
"Time at fraction (no points)")
print("Testing point_at_fraction, 0.25")
first_quarter_point = geomath.point_at_fraction(my_trajectory, 0.25)
expected_first_quarter_point = TerrestrialTrajectoryPoint(
-80.2241, 25.7877)
expected_first_quarter_point.timestamp = right_now + datetime.timedelta(
hours=4)
error_count += verify_point(expected_first_quarter_point,
first_quarter_point, "Point at fraction 0.25")
print("Testing point_at_fraction, 0.75")
third_quarter_point = geomath.point_at_fraction(my_trajectory, 0.75)
expected_third_quarter_point = TerrestrialTrajectoryPoint(
-122.3331, 47.6097)
expected_third_quarter_point.timestamp = right_now + datetime.timedelta(
hours=12)
error_count += verify_point(expected_third_quarter_point,
third_quarter_point, "Point at fraction 0.75")
print("Testing point_at_fraction, 0.5")
mid_point = geomath.point_at_fraction(my_trajectory, 0.5)
expected_mid_point = TerrestrialTrajectoryPoint(-122.4167, 37.7833)
expected_mid_point.timestamp = right_now + datetime.timedelta(hours=8)
error_count += verify_point(expected_mid_point, mid_point,
"Point at fraction 0.5")
print("Testing point_at_fraction, 0.0")
start_point = geomath.point_at_fraction(my_trajectory, 0.0)
expected_start_point = TerrestrialTrajectoryPoint(-71.0636, 42.3581)
expected_start_point.timestamp = right_now
error_count += verify_point(expected_start_point, start_point,
"Point at fraction 0.0")
print("Testing point_at_fraction, 1.0")
end_point = geomath.point_at_fraction(my_trajectory, 1.0)
expected_end_point = TerrestrialTrajectoryPoint(-71.0636, 42.3581)
expected_end_point.timestamp = right_now + datetime.timedelta(hours=16)
error_count += verify_point(expected_end_point, end_point,
"Point at fraction 1.0")
print("Testing point_at_fraction, -0.5")
before_point = geomath.point_at_fraction(my_trajectory, -0.5)
expected_before_point = TerrestrialTrajectoryPoint(-71.0636, 42.3581)
expected_before_point.timestamp = right_now
error_count += verify_point(expected_before_point, before_point,
"Point at fraction -0.5")
print("Testing point_at_fraction, 1.5")
after_point = geomath.point_at_fraction(my_trajectory, 1.5)
expected_after_point = TerrestrialTrajectoryPoint(-71.0636, 42.3581)
expected_after_point.timestamp = right_now + datetime.timedelta(hours=16)
error_count += verify_point(expected_after_point, after_point,
"Point at fraction 1.5")
print("Testing point_at_fraction, 0.33")
first_third_point = geomath.point_at_fraction(my_trajectory, 1.0 / 3.0)
expected_first_third_point = TerrestrialTrajectoryPoint(-92.9849, 31.3181)
expected_first_third_point.timestamp = (
right_now + (my_trajectory[-1].timestamp - right_now) // 3)
error_count += verify_point(expected_first_third_point, first_third_point,
"Point at fraction 0.33")
print("Testing point_at_fraction, No Points")
no_point = geomath.point_at_fraction(empty_trajectory, 0.5)
empty_point = TerrestrialTrajectoryPoint.zero()
error_count += verify_point(no_point, empty_point,
"Point at fraction (no points)")
print("Testing point_at_length_fraction, 0.25")
first_quarter_point = geomath.point_at_length_fraction(my_trajectory, 0.25)
expected_first_quarter_point = TerrestrialTrajectoryPoint(
-87.3824, 29.1092)
expected_first_quarter_point.timestamp = first_quarter_point.timestamp
error_count += verify_point(expected_first_quarter_point,
first_quarter_point,
"Point at length fraction 0.25")
print("Testing point_at_length_fraction, 0.75")
third_quarter_point = geomath.point_at_length_fraction(my_trajectory, 0.75)
expected_third_quarter_point = TerrestrialTrajectoryPoint(
-106.489, 48.5709)
expected_third_quarter_point.timestamp = third_quarter_point.timestamp
error_count += verify_point(expected_third_quarter_point,
third_quarter_point,
"Point at length fraction 0.75")
print("Testing point_at_length_fraction, 0.5")
mid_point = geomath.point_at_length_fraction(my_trajectory, 0.5)
expected_mid_point = TerrestrialTrajectoryPoint(-116.267, 37.0967)
expected_mid_point.timestamp = mid_point.timestamp
error_count += verify_point(expected_mid_point, mid_point,
"Point at length fraction 0.5")
print("Testing point_at_length_fraction, 0.0")
start_point = geomath.point_at_length_fraction(my_trajectory, 0.0)
expected_start_point = TerrestrialTrajectoryPoint(-71.0636, 42.3581)
expected_start_point.timestamp = right_now
error_count += verify_point(expected_start_point, start_point,
"Point at length fraction 0.0")
print("Testing point_at_length_fraction, 1.0")
end_point = geomath.point_at_length_fraction(my_trajectory, 1.0)
expected_end_point = TerrestrialTrajectoryPoint(-71.0636, 42.3581)
expected_end_point.timestamp = right_now + datetime.timedelta(hours=16)
error_count += verify_point(expected_end_point, end_point,
"Point at length fraction 1.0")
print("Testing point_at_length_fraction, -0.5")
before_point = geomath.point_at_length_fraction(my_trajectory, -0.5)
expected_before_point = TerrestrialTrajectoryPoint(-71.0636, 42.3581)
expected_before_point.timestamp = right_now
error_count += verify_point(expected_before_point, before_point,
"Point at length fraction -0.5")
print("Testing point_at_length_fraction, 1.5")
after_point = geomath.point_at_length_fraction(my_trajectory, 1.5)
expected_after_point = TerrestrialTrajectoryPoint(-71.0636, 42.3581)
expected_after_point.timestamp = right_now + datetime.timedelta(hours=16)
error_count += verify_point(expected_after_point, after_point,
"Point at length fraction 1.5")
print("Testing point_at_length_fraction, 0.33")
first_third_point = geomath.point_at_length_fraction(
my_trajectory, 1.0 / 3.0)
expected_first_third_point = TerrestrialTrajectoryPoint(-96.4035, 32.5023)
expected_first_third_point.timestamp = first_third_point.timestamp
error_count += verify_point(expected_first_third_point, first_third_point,
"Point at length fraction 0.33")
print("Testing point_at_length_fraction, No Points")
no_point = geomath.point_at_length_fraction(empty_trajectory, 0.5)
empty_point = TerrestrialTrajectoryPoint.zero()
error_count += verify_point(no_point, empty_point,
"Point at length fraction (no points)")
print("Testing interpolation at timestamp before trajectory")
before_time = right_now - datetime.timedelta(hours=4)
before_point = geomath.point_at_time(my_trajectory, before_time)
error_count += verify_point(boston, before_point,
"Point at time (-4 hours)")
print("Testing interpolation at start timestamp of trajectory")
start_time = right_now
start_point = geomath.point_at_time(my_trajectory, start_time)
error_count += verify_point(boston, start_point, "Point at time (0 hours)")
print("Testing interpolation at first third timestamp of trajectory")
first_third_time = right_now + datetime.timedelta(hours=16.0 / 3.0)
first_third_point = geomath.point_at_time(my_trajectory, first_third_time)
expected_first_third_point = TerrestrialTrajectoryPoint(-92.9849, 31.3181)
expected_first_third_point.timestamp = right_now + datetime.timedelta(
hours=16.0 / 3.0)
error_count += verify_point(expected_first_third_point, first_third_point,
"Point at time (+5.33 hours)")
print("Testing interpolation at mid timestamp of trajectory")
mid_time = right_now + datetime.timedelta(hours=8)
mid_point = geomath.point_at_time(my_trajectory, mid_time)
error_count += verify_point(san_francisco, mid_point,
"Point at time (+8 hours)")
print("Testing interpolation at end timestamp of trajectory")
end_time = right_now + datetime.timedelta(hours=16)
end_point = geomath.point_at_time(my_trajectory, end_time)
error_count += verify_point(boston_return, end_point,
"Point at time (+16 hours)")
print("Testing interpolation at timestamp after trajectory")
after_time = right_now + datetime.timedelta(hours=20)
after_point = geomath.point_at_time(my_trajectory, after_time)
error_count += verify_point(boston_return, after_point,
"Point at time (+20 hours)")
print("Testing interpolation at timestamp with no points trajectory")
no_point = geomath.point_at_time(empty_trajectory,
right_now + datetime.timedelta(hours=8))
empty_point = TerrestrialTrajectoryPoint()
error_count += verify_point(empty_point, no_point,
"Point at time (no points)")
# print("Testing pickle support")
# picklebuf = StringIO()
# pickle.dump(my_trajectory, picklebuf)
# restorebuf = StringIO(picklebuf.getvalue())
# restored_trajectory = pickle.load(restorebuf)
# if my_trajectory != restored_trajectory:
# sys.stderr.write('ERROR: Original trajectory is not the same as the one being restored from pickle jar.\n')
# sys.stderr.write('Original trajectory: {}'.format(my_trajectory))
# sys.stderr.write('Restored trajectory: {}'.format(restored_trajectory))
# error_count += 1
if error_count == 0:
print("Surface trajectory passed all tests.")
return error_count
def create_point(lat, lon, id):
point = TerrestrialTrajectoryPoint(lon, lat)
point.object_id = id
return point
def test_point_type():
print("Testing point type")
error_count = 0
point1 = TerrestrialBasePoint(45, 45)
point2 = TerrestrialBasePoint(135, 45)
print("Testing terrestrial base point interpolate, 0.5")
result = geomath.interpolate(point1, point2, 0.5)
expected = TerrestrialBasePoint(90, 54.7356)
error_count += verify_base_point(expected, result,
"Terrestrial Base Point Interpolate 0.5")
print("Testing terrestrial base point interpolate, 0.3")
result = geomath.interpolate(point1, point2, 0.3)
expected = TerrestrialBasePoint(69.7884, 53.0018)
error_count += verify_base_point(expected, result,
"Terrestrial Base Point Interpolate 0.3")
print("Testing terrestrial base point interpolate, 1")
result = geomath.interpolate(point1, point2, 1)
error_count += verify_base_point(point2, result,
"Terrestrial Base Point Interpolate 1")
print("Testing terrestrial base point extrapolate, 2")
result = geomath.extrapolate(point1, point2, 2)
expected = TerrestrialBasePoint(180, 0)
error_count += verify_base_point(expected, result,
"Terrestrial Base Point Extrapolate 2")
point3 = Cartesian2DBasePoint(0, 0)
point4 = Cartesian2DBasePoint(10, 10)
print("Testing cartesian2d base point interpolate, 0.5")
result = geomath.interpolate(point3, point4, 0.5)
expected = Cartesian2DBasePoint(5, 5)
error_count += verify_base_point(expected, result,
"Cartesian2D Base Point Interpolate 0.5")
print("Testing cartesian2d base point interpolate, 0.3")
result = geomath.interpolate(point3, point4, 0.3)
expected = Cartesian2DBasePoint(3, 3)
error_count += verify_base_point(expected, result,
"Cartesian2D Base Point Interpolate 0.3")
print("Testing cartesian2d base point interpolate, 1")
result = geomath.interpolate(point3, point4, 1)
error_count += verify_base_point(point4, result,
"Cartesian2D Base Point Interpolate 1")
print("Testing cartesian2d base point extrapolate, 1.5")
result = geomath.extrapolate(point3, point4, 1.5)
expected = Cartesian2DBasePoint(15, 15)
error_count += verify_base_point(expected, result,
"Cartesian2D Base Point Extrapolate 1.5")
point5 = Cartesian3DBasePoint(0, 0, 0)
point6 = Cartesian3DBasePoint(10, 10, 10)
print("Testing cartesian3d base point interpolate, 0.5")
result = geomath.interpolate(point5, point6, 0.5)
expected = Cartesian3DBasePoint(5, 5, 5)
error_count += verify_base_point(expected, result,
"Cartesian3D Base Point Interpolate 0.5")
print("Testing cartesian3d base point interpolate, 0.3")
result = geomath.interpolate(point5, point6, 0.3)
expected = Cartesian3DBasePoint(3, 3, 3)
error_count += verify_base_point(expected, result,
"Cartesian3D Base Point Interpolate 0.3")
print("Testing cartesian3d base point interpolate, 1")
result = geomath.interpolate(point5, point6, 1)
error_count += verify_base_point(point6, result,
"Cartesian3D Base Point Interpolate 1")
print("Testing cartesian3d base point extrapolate, 1.5")
result = geomath.extrapolate(point5, point6, 1.5)
expected = Cartesian3DBasePoint(15, 15, 15)
error_count += verify_base_point(expected, result,
"Cartesian3D Base Point Extrapolate 1.5")
point7 = TerrestrialTrajectoryPoint(10, 30)
point7.timestamp = datetime.strptime("2020-12-01 00:00:00",
"%Y-%m-%d %H:%M:%S")
point7.object_id = 'FOO'
point7.set_property('speed', 100.0)
point7.set_property('heading', 0.0)
point8 = TerrestrialTrajectoryPoint(14.6929, 35.1023)
point8.timestamp = datetime.strptime("2020-12-01 00:30:00",
"%Y-%m-%d %H:%M:%S")
point8.object_id = 'FOO'
point8.set_property('speed', 150.0)
point8.set_property('heading', 90.0)
point9 = TerrestrialTrajectoryPoint(20, 40)
point9.timestamp = datetime.strptime("2020-12-01 01:00:00",
"%Y-%m-%d %H:%M:%S")
point9.object_id = 'FOO'
point9.set_property('speed', 200.0)
point9.set_property('heading', 180.0)
print("Testing terrestrial trajectory point interpolate, 0.5")
result = geomath.interpolate(point7, point9, 0.5)
error_count += verify_trajectory_point(
point8, result, "Terrestrial Trajectory Point Interpolate 0.5")
print("Testing terrestrial trajectory point extrapolate, 2")
result = geomath.extrapolate(point7, point8, 2)
error_count += verify_trajectory_point(
point9, result, "Terrestrial Trajectory Point Extrapolate 2")
point10 = Cartesian2DTrajectoryPoint(5, 5)
point10.timestamp = datetime.strptime("2020-12-01 00:00:00",
"%Y-%m-%d %H:%M:%S")
point10.object_id = 'FOO'
point10.set_property('speed', 10.0)
point10.set_property('heading', 0.0)
point11 = Cartesian2DTrajectoryPoint(10, 10)
point11.timestamp = datetime.strptime("2020-12-01 00:30:00",
"%Y-%m-%d %H:%M:%S")
point11.object_id = 'FOO'
point11.set_property('speed', 15.0)
point11.set_property('heading', 90.0)
point12 = Cartesian2DTrajectoryPoint(15, 15)
point12.timestamp = datetime.strptime("2020-12-01 01:00:00",
"%Y-%m-%d %H:%M:%S")
point12.object_id = 'FOO'
point12.set_property('speed', 20.0)
point12.set_property('heading', 180.0)
print("Testing cartesian2d trajectory point interpolate, 0.5")
result = geomath.interpolate(point10, point12, 0.5)
error_count += verify_trajectory_point(
point11, result, "Cartesian2D Trajectory Point Interpolate 0.5")
print("Testing cartesian2d trajectory point extrapolate, 2")
result = geomath.extrapolate(point10, point11, 2)
error_count += verify_trajectory_point(
point12, result, "Cartesian2D Trajectory Point Extrapolate 2")
point13 = Cartesian3DTrajectoryPoint(5, 5, 5)
point13.timestamp = datetime.strptime("2020-12-01 00:00:00",
"%Y-%m-%d %H:%M:%S")
point13.object_id = 'FOO'
point13.set_property('speed', 10.0)
point13.set_property('heading', 0.0)
point14 = Cartesian3DTrajectoryPoint(10, 10, 10)
point14.timestamp = datetime.strptime("2020-12-01 00:30:00",
"%Y-%m-%d %H:%M:%S")
point14.object_id = 'FOO'
point14.set_property('speed', 15.0)
point14.set_property('heading', 90.0)
point15 = Cartesian3DTrajectoryPoint(15, 15, 15)
point15.timestamp = datetime.strptime("2020-12-01 01:00:00",
"%Y-%m-%d %H:%M:%S")
point15.object_id = 'FOO'
point15.set_property('speed', 20.0)
point15.set_property('heading', 180.0)
print("Testing cartesian3d trajectory point interpolate, 0.5")
result = geomath.interpolate(point13, point15, 0.5)
error_count += verify_trajectory_point(
point14, result, "Cartesian3D Trajectory Point Interpolate 0.5")
print("Testing cartesian3d trajectory point extrapolate, 2")
result = geomath.extrapolate(point13, point14, 2)
error_count += verify_trajectory_point(
point15, result, "Cartesian3D Trajectory Point Extrapolate 2")
return error_count