def test_parse_stations_file(tmpdir):
"""
Tests parsing from a STATIONS file. tmpdir is a pytest fixture.
"""
filename = os.path.join(tmpdir.dirname, "STATIONS")
lines = (
"AAK II 10. 20. 1645.0 30.0",
"BBK AA 20. 30. 1645.0 30.0",
)
with open(filename, "wt") as fh:
fh.write("\n".join(lines))
receivers = Receiver.parse(filename)
assert len(receivers) == 2
rec = receivers[0]
assert (rec.latitude, rec.longitude, rec.network, rec.station) == (
elliptic_to_geocentric_latitude(10.0),
20.0,
"II",
"AAK",
)
rec = receivers[1]
assert (rec.latitude, rec.longitude, rec.network, rec.station) == (
elliptic_to_geocentric_latitude(20.0),
30.0,
"AA",
"BBK",
)
def test_parse_obspy_objects():
filename = os.path.join(DATA, "TA.Q56A..BH.xml")
inv = obspy.read_inventory(filename)
receivers = Receiver.parse(inv)
assert len(receivers) == 1
rec = receivers[0]
assert (rec.latitude, rec.longitude, rec.network, rec.station) == (
elliptic_to_geocentric_latitude(39.041),
-79.1871,
"TA",
"Q56A",
)
receivers = Receiver.parse(inv[0])
assert len(receivers) == 1
rec = receivers[0]
assert (rec.latitude, rec.longitude, rec.network, rec.station) == (
elliptic_to_geocentric_latitude(39.041),
-79.1871,
"TA",
"Q56A",
)
receivers = Receiver.parse(inv[0][0], network_code="TA")
assert len(receivers) == 1
rec = receivers[0]
assert (rec.latitude, rec.longitude, rec.network, rec.station) == (
elliptic_to_geocentric_latitude(39.041),
-79.1871,
"TA",
"Q56A",
)
def test_parse_cmtsolutions_file(tmpdir):
"""
Tests parsing from a CMTSOLUTIONS file.
"""
filename = os.path.join(str(tmpdir), "CMTSOLUTIONS")
lines = (" PDE 2011 8 23 17 51 4.60 37.9400 -77.9300 6.0 5.9 5.8 "
"VIRGINIA", "event name: 201108231751A",
"time shift: 1.00", "half duration: 1.8000",
"latitude: 37.9100", "longitude: -77.9300",
"depth: 12.0000", "Mrr: 4.710000e+24",
"Mtt: 3.810000e+22", "Mpp: -4.740000e+24",
"Mrt: 3.990000e+23", "Mrp: -8.050000e+23",
"Mtp: -1.230000e+24")
with open(filename, "wt") as fh:
fh.write("\n".join(lines))
# This is the hypocentral time + 1 seconds (the time shift in the
# CMTSOLUTION file).
origin_time = obspy.UTCDateTime(2011, 8, 23, 17, 51, 5.6)
src = Source.parse(filename)
src_params = np.array([
src.latitude, src.longitude, src.depth_in_m, src.m_rr, src.m_tt,
src.m_pp, src.m_rt, src.m_rp, src.m_tp
],
dtype="float64")
# Latitude will have assumed to be WGS84 and converted to geocentric
# latitude. The import machinery should do that.
np.testing.assert_allclose(
src_params,
np.array((elliptic_to_geocentric_latitude(37.91), -77.93, 12000,
4.71E17, 3.81E15, -4.74E17, 3.99E16, -8.05E16, -1.23E17),
dtype="float64"))
assert src.origin_time == origin_time
def _assert_src(src):
"""
We constantly test the same event in various configurations.
"""
# Latitude will have been assumed to be WGS84 and converted to geocentric!
assert (
src.latitude,
src.longitude,
src.depth_in_m,
src.m_rr,
src.m_tt,
src.m_pp,
src.m_rt,
src.m_rp,
src.m_tp,
) == (
elliptic_to_geocentric_latitude(36.97),
-3.54,
609800.0,
-2.16e18,
5.36e17,
1.62e18,
1.3e16,
3.23e18,
1.75e18,
)
# Also check the time!
assert src.origin_time == obspy.UTCDateTime("2010-04-11T22:08:12.800000Z")
def test_duplicate_receivers():
"""
Many waveform files contain multiple channels of the same stations. Of
course these duplicates need to be purged.
"""
filename = os.path.join(DATA, "example.sac")
st = obspy.read(filename)
st += st.copy()
st[1].stats.channel = "LHZ"
receivers = Receiver.parse(st)
assert len(receivers) == 1
rec = receivers[0]
# Coordinates are assumed to be WGS84 and will be converted to geocentric.
assert (
round(rec.latitude, 3),
round(rec.longitude, 3),
rec.network,
rec.station,
) == (
round(elliptic_to_geocentric_latitude(34.94598), 3),
round(-106.45713, 3),
"IU",
"ANMO",
)
def test_parse_StationXML():
filename = os.path.join(DATA, "TA.Q56A..BH.xml")
receivers = Receiver.parse(filename)
assert len(receivers) == 1
rec = receivers[0]
assert (rec.latitude, rec.longitude, rec.network, rec.station) == \
(elliptic_to_geocentric_latitude(39.041), -79.1871, "TA", "Q56A")
def test_parse_stationxml():
filename = os.path.join(DATA, "TA.Q56A..BH.xml")
receivers = Receiver.parse(filename)
assert len(receivers) == 1
rec = receivers[0]
assert (rec.latitude, rec.longitude, rec.network, rec.station) == \
(elliptic_to_geocentric_latitude(39.041), -79.1871, "TA", "Q56A")
def test_parse_sac_files():
filename = os.path.join(DATA, "example.sac")
receivers = Receiver.parse(filename)
assert len(receivers) == 1
rec = receivers[0]
assert (round(rec.latitude, 3), round(rec.longitude, 3),
rec.network, rec.station) == \
(round(elliptic_to_geocentric_latitude(34.94598), 3),
round(-106.45713, 3), 'IU', 'ANMO')
def test_parse_sac_files():
filename = os.path.join(DATA, "example.sac")
receivers = Receiver.parse(filename)
assert len(receivers) == 1
rec = receivers[0]
assert (round(rec.latitude, 3), round(rec.longitude, 3),
rec.network, rec.station) == \
(round(elliptic_to_geocentric_latitude(34.94598), 3),
round(-106.45713, 3), 'IU', 'ANMO')
def test_dataless_seed_files():
filename = os.path.join(DATA, "dataless.seed.BW_FURT")
receivers = Receiver.parse(filename)
assert len(receivers) == 1
rec = receivers[0]
# Coordinates are assumed to be WGS84 and will be converted to geocentric.
assert (round(rec.latitude, 3), round(rec.longitude, 3),
rec.network, rec.station) == \
(round(elliptic_to_geocentric_latitude(48.162899), 3),
round(11.2752, 3), 'BW', 'FURT')
def test_dataless_seed_files():
filename = os.path.join(DATA, "dataless.seed.BW_FURT")
receivers = Receiver.parse(filename)
assert len(receivers) == 1
rec = receivers[0]
# Coordinates are assumed to be WGS84 and will be converted to geocentric.
assert (round(rec.latitude, 3), round(rec.longitude, 3),
rec.network, rec.station) == \
(round(elliptic_to_geocentric_latitude(48.162899), 3),
round(11.2752, 3), 'BW', 'FURT')
def _assert_src(src):
"""
We constantly test the same event in various configurations.
"""
# Latitude will have been assumed to be WGS84 and converted to geocentric!
assert (src.latitude, src.longitude, src.depth_in_m, src.m_rr, src.m_tt,
src.m_pp, src.m_rt, src.m_rp, src.m_tp) == \
(elliptic_to_geocentric_latitude(36.97), -3.54, 609800.0, -2.16E18,
5.36E17, 1.62E18, 1.3E16, 3.23E18, 1.75E18)
# Also check the time!
assert src.origin_time == obspy.UTCDateTime("2010-04-11T22:08:12.800000Z")
def test_parse_obspy_objects():
filename = os.path.join(DATA, "TA.Q56A..BH.xml")
inv = obspy.read_inventory(filename)
receivers = Receiver.parse(inv)
assert len(receivers) == 1
rec = receivers[0]
assert (rec.latitude, rec.longitude, rec.network, rec.station) == \
(elliptic_to_geocentric_latitude(39.041), -79.1871, "TA", "Q56A")
receivers = Receiver.parse(inv[0])
assert len(receivers) == 1
rec = receivers[0]
assert (rec.latitude, rec.longitude, rec.network, rec.station) == \
(elliptic_to_geocentric_latitude(39.041), -79.1871, "TA", "Q56A")
receivers = Receiver.parse(inv[0][0], network_code="TA")
assert len(receivers) == 1
rec = receivers[0]
assert (rec.latitude, rec.longitude, rec.network, rec.station) == \
(elliptic_to_geocentric_latitude(39.041), -79.1871, "TA", "Q56A")
def test_parse_obspy_waveform_objects():
filename = os.path.join(DATA, "example.sac")
st = obspy.read(filename)
# From stream.
receivers = Receiver.parse(st)
assert len(receivers) == 1
rec = receivers[0]
# Coordinates are assumed to be WGS84 and will be converted to geocentric.
assert (round(rec.latitude, 3), round(rec.longitude, 3),
rec.network, rec.station) == \
(round(elliptic_to_geocentric_latitude(34.94598), 3),
round(-106.45713, 3), 'IU', 'ANMO')
# From trace.
receivers = Receiver.parse(st[0])
assert len(receivers) == 1
rec = receivers[0]
assert (round(rec.latitude, 3), round(rec.longitude, 3),
rec.network, rec.station) == \
(round(elliptic_to_geocentric_latitude(34.94598), 3),
round(-106.45713, 3), 'IU', 'ANMO')
def test_parse_obspy_waveform_objects():
filename = os.path.join(DATA, "example.sac")
st = obspy.read(filename)
# From stream.
receivers = Receiver.parse(st)
assert len(receivers) == 1
rec = receivers[0]
# Coordinates are assumed to be WGS84 and will be converted to geocentric.
assert (round(rec.latitude, 3), round(rec.longitude, 3),
rec.network, rec.station) == \
(round(elliptic_to_geocentric_latitude(34.94598), 3),
round(-106.45713, 3), 'IU', 'ANMO')
# From trace.
receivers = Receiver.parse(st[0])
assert len(receivers) == 1
rec = receivers[0]
assert (round(rec.latitude, 3), round(rec.longitude, 3),
rec.network, rec.station) == \
(round(elliptic_to_geocentric_latitude(34.94598), 3),
round(-106.45713, 3), 'IU', 'ANMO')
def test_parse_CMTSOLUTIONS_file(tmpdir):
"""
Tests parsing from a CMTSOLUTIONS file.
"""
filename = os.path.join(str(tmpdir), "CMTSOLUTIONS")
lines = (
"PDEW2011 8 23 17 51 4.60 37.9400 -77.9300 6.0 5.9 5.8 VIRGINIA",
"event name: 201108231751A",
"time shift: 1.1100",
"half duration: 1.8000",
"latitude: 37.9100",
"longitude: -77.9300",
"depth: 12.0000",
"Mrr: 4.710000e+24",
"Mtt: 3.810000e+22",
"Mpp: -4.740000e+24",
"Mrt: 3.990000e+23",
"Mrp: -8.050000e+23",
"Mtp: -1.230000e+24")
with open(filename, "wt") as fh:
fh.write("\n".join(lines))
origin_time = obspy.UTCDateTime(2011, 8, 23, 17, 51, 4.6)
src = Source.parse(filename)
src_params = np.array([src.latitude, src.longitude, src.depth_in_m,
src.m_rr, src.m_tt, src.m_pp, src.m_rt, src.m_rp,
src.m_tp], dtype="float64")
# Latitude will have assumed to be WGS84 and converted to geocentric
# latitude.
np.testing.assert_allclose(src_params, np.array(
(elliptic_to_geocentric_latitude(37.91), -77.93, 12000, 4.71E17,
3.81E15, -4.74E17, 3.99E16, -8.05E16,
-1.23E17), dtype="float64"))
assert src.origin_time == origin_time
# Write again. Reset latitude beforehand.
filename = os.path.join(str(tmpdir), "CMTSOLUTIONS2")
src.latitude = 37.91
src.write_CMTSOLUTION_file(filename)
# This time there is no need to convert latitudes. Writing will convert
# to WGS84 and reading will convert back.
src = Source.parse(filename)
src_params = np.array([src.latitude, src.longitude, src.depth_in_m,
src.m_rr, src.m_tt, src.m_pp, src.m_rt, src.m_rp,
src.m_tp], dtype="float64")
np.testing.assert_allclose(src_params, np.array(
(37.91, -77.93, 12000, 4.71E17, 3.81E15, -4.74E17, 3.99E16, -8.05E16,
-1.23E17), dtype="float64"), rtol=1E-5)
assert src.origin_time == origin_time
def test_parse_stations_file(tmpdir):
"""
Tests parsing from a STATIONS file. tmpdir is a pytest fixture.
"""
filename = os.path.join(tmpdir.dirname, "STATIONS")
lines = (
"AAK II 10. 20. 1645.0 30.0",
"BBK AA 20. 30. 1645.0 30.0"
)
with open(filename, "wt") as fh:
fh.write("\n".join(lines))
receivers = Receiver.parse(filename)
assert len(receivers) == 2
rec = receivers[0]
assert (rec.latitude, rec.longitude, rec.network, rec.station) == \
(elliptic_to_geocentric_latitude(10.0), 20.0, "II", "AAK")
rec = receivers[1]
assert (rec.latitude, rec.longitude, rec.network, rec.station) == \
(elliptic_to_geocentric_latitude(20.0), 30.0, "AA", "BBK")
def test_duplicate_receivers():
"""
Many waveform files contain multiple channels of the same stations. Of
course these duplicates need to be purged.
"""
filename = os.path.join(DATA, "example.sac")
st = obspy.read(filename)
st += st.copy()
st[1].stats.channel = "LHZ"
receivers = Receiver.parse(st)
assert len(receivers) == 1
rec = receivers[0]
# Coordinates are assumed to be WGS84 and will be converted to geocentric.
assert (round(rec.latitude, 3), round(rec.longitude, 3),
rec.network, rec.station) == \
(round(elliptic_to_geocentric_latitude(34.94598), 3),
round(-106.45713, 3), 'IU', 'ANMO')
def get_event_information(event_id, filename):
"""
Return the event information for the given event id as a dictionary.
"""
filename = os.path.abspath(filename)
if filename not in CACHE:
with open(filename, "rt") as fh:
CACHE[filename] = json.load(fh)
events = CACHE[filename]
if event_id not in events:
raise EventNotFoundError
event = copy.deepcopy(events[event_id])
event["origin_time"] = obspy.UTCDateTime(event["origin_time"])
# Convert latitude to a geocentric latitude.
event["latitude"] = elliptic_to_geocentric_latitude(event["latitude"])
return event
def get_event_information(event_id, filename):
"""
Return the event information for the given event id as a dictionary.
"""
filename = os.path.abspath(filename)
if filename not in CACHE:
with open(filename, "rt") as fh:
CACHE[filename] = json.load(fh)
events = CACHE[filename]
if event_id not in events:
raise EventNotFoundError
event = copy.deepcopy(events[event_id])
event["origin_time"] = obspy.UTCDateTime(event["origin_time"])
# Convert latitude to a geocentric latitude.
event["latitude"] = elliptic_to_geocentric_latitude(event["latitude"])
return event
def get_coordinates(cursor, networks=(), stations=(), debug=False):
# Build query
query = "SELECT * FROM coordinates"
network_queries = []
for network in networks:
if "*" in network or "?" in network:
network_queries.append("network GLOB '%s'" % network)
else:
network_queries.append("network='%s'" % network)
station_queries = []
for station in stations:
if "*" in station or "?" in station:
station_queries.append("station GLOB '%s'" % station)
else:
station_queries.append("station='%s'" % station)
if network_queries or station_queries:
query += " WHERE"
if network_queries:
query = query + " ({network_queries})".format(
network_queries=" OR ".join(network_queries))
if network_queries and station_queries:
query += " AND"
if station_queries:
query = query + " ({station_queries})".format(
station_queries=" OR ".join(station_queries))
if debug:
print("Constructed query: %s" % query)
# Convert to geocentric coordinates.
return [{
"network": i[0],
"station": i[1],
"latitude": elliptic_to_geocentric_latitude(i[2]),
"longitude": i[3]
} for i in cursor.execute(query).fetchall()]
def get_coordinates(cursor, networks=(), stations=(), debug=False):
# Build query
query = "SELECT * FROM coordinates"
network_queries = []
for network in networks:
if "*" in network or "?" in network:
network_queries.append("network GLOB '%s'" % network)
else:
network_queries.append("network='%s'" % network)
station_queries = []
for station in stations:
if "*" in station or "?" in station:
station_queries.append("station GLOB '%s'" % station)
else:
station_queries.append("station='%s'" % station)
if network_queries or station_queries:
query += " WHERE"
if network_queries:
query = query + " ({network_queries})".format(
network_queries=" OR ".join(network_queries))
if network_queries and station_queries:
query += " AND"
if station_queries:
query = query + " ({station_queries})".format(
station_queries=" OR ".join(station_queries))
if debug:
print("Constructed query: %s" % query)
# Convert to geocentric coordinates.
return [{"network": i[0], "station": i[1],
"latitude": elliptic_to_geocentric_latitude(i[2]), "longitude": i[3]}
for i in cursor.execute(query).fetchall()]
def test_parse_cmtsolutions_file(tmpdir):
"""
Tests parsing from a CMTSOLUTIONS file.
"""
filename = os.path.join(str(tmpdir), "CMTSOLUTIONS")
lines = (
" PDE 2011 8 23 17 51 4.60 37.9400 -77.9300 6.0 5.9 5.8 "
"VIRGINIA",
"event name: 201108231751A",
"time shift: 1.00",
"half duration: 1.8000",
"latitude: 37.9100",
"longitude: -77.9300",
"depth: 12.0000",
"Mrr: 4.710000e+24",
"Mtt: 3.810000e+22",
"Mpp: -4.740000e+24",
"Mrt: 3.990000e+23",
"Mrp: -8.050000e+23",
"Mtp: -1.230000e+24")
with open(filename, "wt") as fh:
fh.write("\n".join(lines))
# This is the hypocentral time + 1 seconds (the time shift in the
# CMTSOLUTION file).
origin_time = obspy.UTCDateTime(2011, 8, 23, 17, 51, 5.6)
src = Source.parse(filename)
src_params = np.array([src.latitude, src.longitude, src.depth_in_m,
src.m_rr, src.m_tt, src.m_pp, src.m_rt, src.m_rp,
src.m_tp], dtype="float64")
# Latitude will have assumed to be WGS84 and converted to geocentric
# latitude. The import machinery should do that.
np.testing.assert_allclose(src_params, np.array(
(elliptic_to_geocentric_latitude(37.91), -77.93, 12000, 4.71E17,
3.81E15, -4.74E17, 3.99E16, -8.05E16,
-1.23E17), dtype="float64"))
assert src.origin_time == origin_time
