def _create_mesh(self):
"""
See
:meth:`openquake.hazardlib.geo.surface.base.BaseQuadrilateralSurface._create_mesh`.
"""
llons, llats, ldepths = geodetic.intervals_between(
self.top_left.longitude, self.top_left.latitude,
self.top_left.depth,
self.bottom_left.longitude, self.bottom_left.latitude,
self.bottom_left.depth,
self.mesh_spacing
)
rlons, rlats, rdepths = geodetic.intervals_between(
self.top_right.longitude, self.top_right.latitude,
self.top_right.depth,
self.bottom_right.longitude, self.bottom_right.latitude,
self.bottom_right.depth,
self.mesh_spacing
)
mlons, mlats, mdepths = [], [], []
for i in xrange(len(llons)):
lons, lats, depths = geodetic.intervals_between(
llons[i], llats[i], ldepths[i], rlons[i], rlats[i], rdepths[i],
self.mesh_spacing
)
mlons.append(lons)
mlats.append(lats)
mdepths.append(depths)
return RectangularMesh(numpy.array(mlons), numpy.array(mlats),
numpy.array(mdepths))
def _create_mesh(self):
"""
See
:meth:`openquake.hazardlib.geo.surface.base.BaseQuadrilateralSurface._create_mesh`.
"""
llons, llats, ldepths = geodetic.intervals_between(
self.top_left.longitude, self.top_left.latitude,
self.top_left.depth, self.bottom_left.longitude,
self.bottom_left.latitude, self.bottom_left.depth,
self.mesh_spacing)
rlons, rlats, rdepths = geodetic.intervals_between(
self.top_right.longitude, self.top_right.latitude,
self.top_right.depth, self.bottom_right.longitude,
self.bottom_right.latitude, self.bottom_right.depth,
self.mesh_spacing)
mlons, mlats, mdepths = [], [], []
for i in range(len(llons)):
lons, lats, depths = geodetic.intervals_between(
llons[i], llats[i], ldepths[i], rlons[i], rlats[i], rdepths[i],
self.mesh_spacing)
mlons.append(lons)
mlats.append(lats)
mdepths.append(depths)
return RectangularMesh(numpy.array(mlons), numpy.array(mlats),
numpy.array(mdepths))
def test_same_number_of_intervals(self):
# these two set of points are separated by a distance of 65 km. By
# discretizing the line every 2 km, the number of expected points for
# both sets (after rounding) must be 34
lons_1, lats_1, depths_1 = geodetic.intervals_between(
lon1=132.2272081355264675, lat1=31.0552366690758639,
depth1=7.7000000000000002,
lon2=131.6030780890111203, lat2=31.1968015468782589,
depth2=28.8619300397151832,
length=2.0
)
lons_2, lats_2, depths_2 = geodetic.intervals_between(
lon1=132.2218096511129488, lat1=31.0378653652772165,
depth1=7.7000000000000002,
lon2=131.5977943677305859, lat2=31.1794320218608547,
depth2=28.8619300397151832,
length=2.0
)
self.assertTrue(34, lons_1.shape[0])
self.assertTrue(34, lons_2.shape[0])
self.assertTrue(34, lats_1.shape[0])
self.assertTrue(34, lats_2.shape[0])
self.assertTrue(34, depths_1.shape[0])
self.assertTrue(34, depths_2.shape[0])
def test_zero_intervals(self):
lons, lats, depths = geodetic.intervals_between(
lon1=10, lat1=1, depth1=100, lon2=10.04, lat2=1.5, depth2=90,
length=140
)
expected_lons = [10]
expected_lats = [1]
expected_depths = [100]
self.assertTrue(numpy.allclose(lons, expected_lons))
self.assertTrue(numpy.allclose(lats, expected_lats))
self.assertTrue(numpy.allclose(depths, expected_depths))
def test_zero_intervals(self):
lons, lats, depths = geodetic.intervals_between(
lon1=10, lat1=1, depth1=100, lon2=10.04, lat2=1.5, depth2=90,
length=140
)
expected_lons = [10]
expected_lats = [1]
expected_depths = [100]
assert_aeq(lons, expected_lons)
assert_aeq(lats, expected_lats)
assert_aeq(depths, expected_depths)
def test_zero_intervals(self):
lons, lats, depths = geodetic.intervals_between(
lon1=10, lat1=1, depth1=100, lon2=10.04, lat2=1.5, depth2=90,
length=140
)
expected_lons = [10]
expected_lats = [1]
expected_depths = [100]
assert_aeq(lons, expected_lons)
assert_aeq(lats, expected_lats)
assert_aeq(depths, expected_depths)
def test_round_up(self):
lons, lats, depths = geodetic.intervals_between(
lon1=10, lat1=-4, depth1=100,
lon2=12, lat2=4, depth2=60,
length=350
)
expected_lons = [10., 10.76308634, 11.52482625, 12.28955192]
expected_lats = [-4, -0.94915589, 2.10185625, 5.15249576]
expected_depths = [100, 84.74555236, 69.49110472, 54.23665708]
self.assertTrue(numpy.allclose(lons, expected_lons))
self.assertTrue(numpy.allclose(lats, expected_lats))
self.assertTrue(numpy.allclose(depths, expected_depths))
def test_round_down(self):
lons, lats, depths = geodetic.intervals_between(
lon1=10, lat1=-4, depth1=100,
lon2=12, lat2=4, depth2=60,
length=380
)
expected_lons = [10., 10.82836972, 11.65558943]
expected_lats = [-4, -0.68763949, 2.62486454]
expected_depths = [100, 83.43802828, 66.87605655]
self.assertTrue(numpy.allclose(lons, expected_lons))
self.assertTrue(numpy.allclose(lats, expected_lats))
self.assertTrue(numpy.allclose(depths, expected_depths))
def test_round_up_topo(self):
lons, lats, depths = geodetic.intervals_between(
lon1=0, lat1=0, depth1=0,
lon2=0, lat2=0, depth2=-3,
length=2
)
expected_lons = [0, 0, 0]
expected_lats = [0, 0, 0]
expected_depths = [0, -2, -4]
assert_aeq(lons, expected_lons)
assert_aeq(lats, expected_lats)
assert_aeq(depths, expected_depths)
def test_round_up_topo(self):
lons, lats, depths = geodetic.intervals_between(
lon1=0, lat1=0, depth1=0,
lon2=0, lat2=0, depth2=-3,
length=2
)
expected_lons = [0, 0, 0]
expected_lats = [0, 0, 0]
expected_depths = [0, -2, -4]
assert_aeq(lons, expected_lons)
assert_aeq(lats, expected_lats)
assert_aeq(depths, expected_depths)
def equally_spaced_points(self, point, distance):
"""
Compute the set of points equally spaced between this point
and the given point.
:param point:
Destination point.
:type point:
Instance of :class:`Point`
:param distance:
Distance between points (in km).
:type distance:
float
:returns:
The list of equally spaced points.
:rtype:
list of :class:`Point` instances
"""
lons, lats, depths = geodetic.intervals_between(
self.longitude, self.latitude, self.depth, point.longitude,
point.latitude, point.depth, distance)
return [Point(lons[i], lats[i], depths[i]) for i in range(len(lons))]
def equally_spaced_points(self, point, distance):
"""
Compute the set of points equally spaced between this point
and the given point.
:param point:
Destination point.
:type point:
Instance of :class:`Point`
:param distance:
Distance between points (in km).
:type distance:
float
:returns:
The list of equally spaced points.
:rtype:
list of :class:`Point` instances
"""
lons, lats, depths = geodetic.intervals_between(
self.longitude, self.latitude, self.depth,
point.longitude, point.latitude, point.depth,
distance)
return [Point(lons[i], lats[i], depths[i]) for i in range(len(lons))]