def test_basic_col_with_incompatible_points_throws_an_AttributeError(self):
from cis.collocation.col_implementations import GeneralUngriddedCollocator, nn_time, SepConstraintKdtree
ug_data = mock.make_regular_2d_with_time_ungridded_data()
# Make sample points with no time dimension specified
sample_points = UngriddedData.from_points_array(
[HyperPoint(1.0, 1.0), HyperPoint(4.0, 4.0), HyperPoint(-4.0, -4.0)])
col = GeneralUngriddedCollocator()
with self.assertRaises(AttributeError):
new_data = col.collocate(sample_points, ug_data, SepConstraintKdtree(), nn_time())[0]
def test_basic_col_with_incompatible_points_throws_an_AttributeError(self):
from cis.collocation.col_implementations import GeneralUngriddedCollocator, nn_time, SepConstraintKdtree
ug_data = mock.make_regular_2d_with_time_ungridded_data()
# Make sample points with no time dimension specified
sample_points = UngriddedData.from_points_array([
HyperPoint(1.0, 1.0),
HyperPoint(4.0, 4.0),
HyperPoint(-4.0, -4.0)
])
col = GeneralUngriddedCollocator()
with self.assertRaises(AttributeError):
new_data = col.collocate(sample_points, ug_data,
SepConstraintKdtree(), nn_time())[0]
def test_coordinates_outside_grid_in_col_ungridded_to_ungridded_in_2d(self):
from cis.collocation.col_implementations import GeneralUngriddedCollocator, nn_time, SepConstraintKdtree
import datetime as dt
ug_data = mock.make_regular_2d_with_time_ungridded_data()
sample_points = HyperPointList()
sample_points.append(HyperPoint(lat=0.0, lon=0.0, t=dt.datetime(1984, 8, 26)))
sample_points.append(HyperPoint(lat=0.0, lon=0.0, t=dt.datetime(1884, 8, 26)))
sample_points.append(HyperPoint(lat=0.0, lon=0.0, t=dt.datetime(1994, 8, 27)))
sample_points = UngriddedData.from_points_array(sample_points)
col = GeneralUngriddedCollocator()
new_data = col.collocate(sample_points, ug_data, SepConstraintKdtree(), nn_time())[0]
eq_(new_data.data[0], 1.0)
eq_(new_data.data[1], 1.0)
eq_(new_data.data[2], 15.0)
def test_basic_col_in_2d_with_time(self):
from cis.collocation.col_implementations import GeneralUngriddedCollocator, nn_time, SepConstraintKdtree
import datetime as dt
ug_data = mock.make_regular_2d_with_time_ungridded_data()
sample_points = HyperPointList()
sample_points.append(HyperPoint(lat=1.0, lon=1.0, t=dt.datetime(1984, 8, 29, 8, 34)))
sample_points.append(HyperPoint(lat=4.0, lon=4.0, t=dt.datetime(1984, 9, 2, 1, 23)))
sample_points.append(HyperPoint(lat=-4.0, lon=-4.0, t=dt.datetime(1984, 9, 4, 15, 54)))
sample_points = UngriddedData.from_points_array(sample_points)
col = GeneralUngriddedCollocator()
new_data = col.collocate(sample_points, ug_data, SepConstraintKdtree(), nn_time())[0]
eq_(new_data.data[0], 3.0)
eq_(new_data.data[1], 7.0)
eq_(new_data.data[2], 10.0)
def test_already_collocated_in_col_ungridded_to_ungridded_in_2d(self):
from cis.collocation.col_implementations import GeneralUngriddedCollocator, nn_time, SepConstraintKdtree
import datetime as dt
import numpy as np
ug_data = mock.make_regular_2d_with_time_ungridded_data()
sample_points = HyperPointList()
t0 = dt.datetime(1984, 8, 27)
for d in range(15):
sample_points.append(HyperPoint(lat=0.0, lon=0.0, t=t0 + dt.timedelta(days=d)))
sample_points = UngriddedData.from_points_array(sample_points)
col = GeneralUngriddedCollocator()
new_data = col.collocate(sample_points, ug_data, SepConstraintKdtree(), nn_time())[0]
assert (np.equal(new_data.data, np.arange(15) + 1.0).all())
def test_coordinates_exactly_between_points_in_col_ungridded_to_ungridded_in_2d(self):
"""
This works out the edge case where the points are exactly in the middle or two or more datapoints.
The nn_time algorithm will start with the first point as the nearest and iterates through the
points finding any points which are closer than the current closest. If two distances were exactly
the same the first point to be chosen.
"""
from cis.collocation.col_implementations import GeneralUngriddedCollocator, nn_time, SepConstraintKdtree
import datetime as dt
ug_data = mock.make_regular_2d_with_time_ungridded_data()
# Choose a time at midday
sample_points = UngriddedData.from_points_array(
[HyperPoint(lat=0.0, lon=0.0, t=dt.datetime(1984, 8, 29, 12))])
col = GeneralUngriddedCollocator()
new_data = col.collocate(sample_points, ug_data, SepConstraintKdtree(), nn_time())[0]
eq_(new_data.data[0], 3.0)
def test_basic_col_with_time(self):
from cis.collocation.col_implementations import GeneralUngriddedCollocator, nn_time, SepConstraintKdtree
import numpy as np
ug_data = mock.make_MODIS_time_steps()
ref = np.array([0.0, 1.0, 2.0, 3.0])
sample_points = HyperPointList()
sample_points.append(HyperPoint(lat=0.0, lon=0.0, t=149751.369618055))
sample_points.append(HyperPoint(lat=0.0, lon=0.0, t=149759.378055556, ))
sample_points.append(HyperPoint(lat=0.0, lon=0.0, t=149766.373969907))
sample_points.append(HyperPoint(lat=0.0, lon=0.0, t=149776.375995371))
sample_points = UngriddedData.from_points_array(sample_points)
col = GeneralUngriddedCollocator()
new_data = col.collocate(sample_points, ug_data, SepConstraintKdtree(), nn_time())[0]
assert (np.equal(new_data.data, ref).all())
def test_already_collocated_in_col_ungridded_to_ungridded_in_2d(self):
from cis.collocation.col_implementations import GeneralUngriddedCollocator, nn_time, SepConstraintKdtree
import datetime as dt
import numpy as np
ug_data = mock.make_regular_2d_with_time_ungridded_data()
sample_points = HyperPointList()
t0 = dt.datetime(1984, 8, 27)
for d in range(15):
sample_points.append(
HyperPoint(lat=0.0, lon=0.0, t=t0 + dt.timedelta(days=d)))
sample_points = UngriddedData.from_points_array(sample_points)
col = GeneralUngriddedCollocator()
new_data = col.collocate(sample_points, ug_data, SepConstraintKdtree(),
nn_time())[0]
assert (np.equal(new_data.data, np.arange(15) + 1.0).all())
def test_coordinates_exactly_between_points_in_col_ungridded_to_ungridded_in_2d(
self):
"""
This works out the edge case where the points are exactly in the middle or two or more datapoints.
The nn_time algorithm will start with the first point as the nearest and iterates through the
points finding any points which are closer than the current closest. If two distances were exactly
the same the first point to be chosen.
"""
from cis.collocation.col_implementations import GeneralUngriddedCollocator, nn_time, SepConstraintKdtree
import datetime as dt
ug_data = mock.make_regular_2d_with_time_ungridded_data()
# Choose a time at midday
sample_points = UngriddedData.from_points_array(
[HyperPoint(lat=0.0, lon=0.0, t=dt.datetime(1984, 8, 29, 12))])
col = GeneralUngriddedCollocator()
new_data = col.collocate(sample_points, ug_data, SepConstraintKdtree(),
nn_time())[0]
eq_(new_data.data[0], 3.0)
def test_basic_col_in_2d_with_time(self):
from cis.collocation.col_implementations import GeneralUngriddedCollocator, nn_time, SepConstraintKdtree
import datetime as dt
ug_data = mock.make_regular_2d_with_time_ungridded_data()
sample_points = HyperPointList()
sample_points.append(
HyperPoint(lat=1.0, lon=1.0, t=dt.datetime(1984, 8, 29, 8, 34)))
sample_points.append(
HyperPoint(lat=4.0, lon=4.0, t=dt.datetime(1984, 9, 2, 1, 23)))
sample_points.append(
HyperPoint(lat=-4.0, lon=-4.0, t=dt.datetime(1984, 9, 4, 15, 54)))
sample_points = UngriddedData.from_points_array(sample_points)
col = GeneralUngriddedCollocator()
new_data = col.collocate(sample_points, ug_data, SepConstraintKdtree(),
nn_time())[0]
eq_(new_data.data[0], 3.0)
eq_(new_data.data[1], 7.0)
eq_(new_data.data[2], 10.0)
def test_coordinates_outside_grid_in_col_ungridded_to_ungridded_in_2d(
self):
from cis.collocation.col_implementations import GeneralUngriddedCollocator, nn_time, SepConstraintKdtree
import datetime as dt
ug_data = mock.make_regular_2d_with_time_ungridded_data()
sample_points = HyperPointList()
sample_points.append(
HyperPoint(lat=0.0, lon=0.0, t=dt.datetime(1984, 8, 26)))
sample_points.append(
HyperPoint(lat=0.0, lon=0.0, t=dt.datetime(1884, 8, 26)))
sample_points.append(
HyperPoint(lat=0.0, lon=0.0, t=dt.datetime(1994, 8, 27)))
sample_points = UngriddedData.from_points_array(sample_points)
col = GeneralUngriddedCollocator()
new_data = col.collocate(sample_points, ug_data, SepConstraintKdtree(),
nn_time())[0]
eq_(new_data.data[0], 1.0)
eq_(new_data.data[1], 1.0)
eq_(new_data.data[2], 15.0)
def test_basic_col_with_time(self):
from cis.collocation.col_implementations import GeneralUngriddedCollocator, nn_time, SepConstraintKdtree
import numpy as np
ug_data = mock.make_MODIS_time_steps()
ref = np.array([0.0, 1.0, 2.0, 3.0])
sample_points = HyperPointList()
sample_points.append(HyperPoint(lat=0.0, lon=0.0, t=149751.369618055))
sample_points.append(HyperPoint(
lat=0.0,
lon=0.0,
t=149759.378055556,
))
sample_points.append(HyperPoint(lat=0.0, lon=0.0, t=149766.373969907))
sample_points.append(HyperPoint(lat=0.0, lon=0.0, t=149776.375995371))
sample_points = UngriddedData.from_points_array(sample_points)
col = GeneralUngriddedCollocator()
new_data = col.collocate(sample_points, ug_data, SepConstraintKdtree(),
nn_time())[0]
assert (np.equal(new_data.data, ref).all())
