def __call__(
self,
time_arg: event_time_type,
time_before: Optional[float] = None,
time_after: Optional[float] = None,
*args,
**kwargs,
) -> obspy.Stream:
"""
Using a reference time, return a waveforms that encompasses that time.
Parameters
----------
time_arg
The argument that will indicate a start time. Can be a one
length events, and event, a float, or a UTCDatetime object
time_before
The time before time_arg to include in waveforms
time_after
The time after time_arg to include in waveforms
Returns
-------
obspy.Stream
"""
tbefore = to_timedelta64(time_before, default=self.time_before)
tafter = to_timedelta64(time_after, default=self.time_after)
assert (tbefore is not None) and (tafter is not None)
# get the reference time from the object
time = to_datetime64(get_reference_time(time_arg))
t1 = time - tbefore
t2 = time + tafter
return self.get_waveforms(starttime=t1, endtime=t2, **kwargs)
def test_correct_stream(self, bingham_dataset, bingham_stream_dict):
""" ensure the correct streams are given for ids """
cat = bingham_dataset.event_client.get_events()
evs = {str(ev.resource_id): ev for ev in cat}
for eve_id, st in bingham_stream_dict.items():
ev = evs[eve_id]
time2 = get_reference_time(ev).timestamp
tmin = min([tr.stats.starttime.timestamp for tr in st])
assert abs(tmin - time2) < 12
def bank_null_loc_codes(self, tmpdir):
""" create a bank that has nullish location codes in its streams. """
st = obspy.read()
path = Path(tmpdir)
for tr in st:
tr.stats.location = "--"
time = str(get_reference_time(tr))
name = time.split(".")[0].replace(":", "-") + f"_{tr.id}"
tr.write(str(path / name) + ".mseed", "mseed")
bank = WaveBank(path)
bank.update_index()
return bank
def crandall_catalog(crandall_ds):
""" Return the crandall catalog. Add one P amplitude first. """
cat = crandall_ds.event_client.get_events()
# create dict of origin times/eids
ot_id = {get_reference_time(eve).timestamp: eve for eve in cat}
min_time = min(ot_id)
event = ot_id[min_time]
# add noise time amplitudes for a few channels (just so noise spectra
path = Path(TEST_DATA_PATH) / "crandall_noise_picks.xml"
noisey_cat = obspy.read_events(str(path), "quakeml")
event.picks.extend(noisey_cat[0].picks)
event.amplitudes.extend(noisey_cat[0].amplitudes)
return cat
def get_event_path(
eve: Union[Catalog, Event],
base_directory: str = ".",
create_directories: bool = True,
ext=".xml",
) -> str:
"""
Get a path for the event (or len(1) catalog) to save to disk.
This function is used in internal NIOSH systems and as such is very
opinionated about how events should be named. It does the following:
The comments will first be scanned for seisan comments, identified
with the "ID:" tag. If one is found the date string used in the seisan
comment will be used for the file name. If a comment with the substring
"ID:" is not found the name will be generated based on the preferred
origin time.
The last 5 characters of the event ID will be included in the file name.
Parameters
----------
eve : obspy.Event
The event to get a path for
base_directory : str
The path to the base directory
create_directories: bool
If True create any directories needed for path that do not exist
ext : str
The extension for the file to save
Returns
-------
str :
The path
"""
if isinstance(eve, Catalog):
assert len(eve) == 1, "events must have only one event"
eve = eve[0]
utc = get_reference_time(eve)
path = get_utc_path(utc,
base_dir=base_directory,
create=create_directories)
fname = _get_comment_path(eve, ext) or _get_file_name_from_event(eve, ext)
return os.path.join(path, fname)
def _get_file_name_from_event(eve: Event, ext: str = ".xml") -> str:
"""
Generate a file name for the given event.
Parameters
----------
eve
ext
Returns
-------
"""
# get utc and formatted list from event
utc = get_reference_time(eve)
fmt = "year month day hour minute second".split()
utc_list = [UTC_FORMATS[x] % getattr(utc, x) for x in fmt]
# append last 5 of resource_id
rid_str = str(eve.resource_id)[-5:]
utc_list.append(rid_str)
fn = "%s-%s-%sT%s-%s-%s-%s" % tuple(utc_list)
if ext:
fn = fn + ext
return fn
