def _read_picks(f, new_event):
"""
Internal pick reader. Use read_nordic instead.
:type f: file
:param f: File open in read mode
:type wav_names: list
:param wav_names: List of waveform files in the sfile
:type new_event: :class:`~obspy.core.event.event.Event`
:param new_event: event to associate picks with.
:returns: :class:`~obspy.core.event.event.Event`
"""
f.seek(0)
evtime = new_event.origins[0].time
pickline = []
# Set a default, ignored later unless overwritten
snr = None
for lineno, line in enumerate(f):
if line[79] == '7':
header = line
break
for lineno, line in enumerate(f):
if len(line.rstrip('\n').rstrip('\r')) in [80, 79] and \
line[79] in ' 4\n':
pickline += [line]
for line in pickline:
if line[18:28].strip() == '': # If line is empty miss it
continue
weight = line[14]
if weight == '_':
phase = line[10:17]
weight = 0
polarity = ''
else:
phase = line[10:14].strip()
polarity = line[16]
if weight == ' ':
weight = 0
polarity_maps = {"": "undecidable", "C": "positive", "D": "negative"}
try:
polarity = polarity_maps[polarity]
except KeyError:
polarity = "undecidable"
# It is valid nordic for the origin to be hour 23 and picks to be hour
# 00 or 24: this signifies a pick over a day boundary.
if int(line[18:20]) == 0 and evtime.hour == 23:
day_add = 86400
pick_hour = 0
elif int(line[18:20]) == 24:
day_add = 86400
pick_hour = 0
else:
day_add = 0
pick_hour = int(line[18:20])
try:
time = UTCDateTime(evtime.year, evtime.month, evtime.day,
pick_hour, int(line[20:22]),
float(line[23:28])) + day_add
except ValueError:
time = UTCDateTime(evtime.year, evtime.month, evtime.day,
int(line[18:20]), pick_hour,
float("0." + line[23:38].split('.')[1])) +\
60 + day_add
# Add 60 seconds on to the time, this copes with s-file
# preference to write seconds in 1-60 rather than 0-59 which
# datetime objects accept
if header[57:60] == 'AIN':
ain = _float_conv(line[57:60])
warnings.warn('AIN: %s in header, currently unsupported' % ain)
elif header[57:60] == 'SNR':
snr = _float_conv(line[57:60])
else:
warnings.warn('%s is not currently supported' % header[57:60])
# finalweight = _int_conv(line[68:70])
# Create a new obspy.event.Pick class for this pick
_waveform_id = WaveformStreamID(station_code=line[1:6].strip(),
channel_code=line[6:8].strip(),
network_code='NA')
pick = Pick(waveform_id=_waveform_id, phase_hint=phase,
polarity=polarity, time=time)
try:
pick.onset = onsets[line[9]]
except KeyError:
pass
if line[15] == 'A':
pick.evaluation_mode = 'automatic'
else:
pick.evaluation_mode = 'manual'
# Note these two are not always filled - velocity conversion not yet
# implemented, needs to be converted from km/s to s/deg
# if not velocity == 999.0:
# new_event.picks[pick_index].horizontal_slowness = 1.0 / velocity
if _float_conv(line[46:51]) is not None:
pick.backazimuth = _float_conv(line[46:51])
# Create new obspy.event.Amplitude class which references above Pick
# only if there is an amplitude picked.
if _float_conv(line[33:40]) is not None:
_amplitude = Amplitude(generic_amplitude=_float_conv(line[33:40]),
period=_float_conv(line[41:45]),
pick_id=pick.resource_id,
waveform_id=pick.waveform_id)
if pick.phase_hint == 'IAML':
# Amplitude for local magnitude
_amplitude.type = 'AML'
# Set to be evaluating a point in the trace
_amplitude.category = 'point'
# Default AML unit in seisan is nm (Page 139 of seisan
# documentation, version 10.0)
_amplitude.generic_amplitude /= 1e9
_amplitude.unit = 'm'
_amplitude.magnitude_hint = 'ML'
else:
# Generic amplitude type
_amplitude.type = 'A'
if snr:
_amplitude.snr = snr
new_event.amplitudes.append(_amplitude)
elif _int_conv(line[28:33]) is not None:
# Create an amplitude instance for code duration also
_amplitude = Amplitude(generic_amplitude=_int_conv(line[28:33]),
pick_id=pick.resource_id,
waveform_id=pick.waveform_id)
# Amplitude for coda magnitude
_amplitude.type = 'END'
# Set to be evaluating a point in the trace
_amplitude.category = 'duration'
_amplitude.unit = 's'
_amplitude.magnitude_hint = 'Mc'
if snr is not None:
_amplitude.snr = snr
new_event.amplitudes.append(_amplitude)
# Create new obspy.event.Arrival class referencing above Pick
if _float_conv(line[33:40]) is None:
arrival = Arrival(phase=pick.phase_hint, pick_id=pick.resource_id)
if weight is not None:
arrival.time_weight = weight
if _int_conv(line[60:63]) is not None:
arrival.backazimuth_residual = _int_conv(line[60:63])
if _float_conv(line[63:68]) is not None:
arrival.time_residual = _float_conv(line[63:68])
if _float_conv(line[70:75]) is not None:
arrival.distance = kilometers2degrees(_float_conv(line[70:75]))
if _int_conv(line[76:79]) is not None:
arrival.azimuth = _int_conv(line[76:79])
new_event.origins[0].arrivals.append(arrival)
new_event.picks.append(pick)
return new_event
def _read_picks(f, new_event):
"""
Internal pick reader. Use read_nordic instead.
:type f: file
:param f: File open in read mode
:type wav_names: list
:param wav_names: List of waveform files in the sfile
:type new_event: :class:`~obspy.core.event.event.Event`
:param new_event: event to associate picks with.
:returns: :class:`~obspy.core.event.event.Event`
"""
f.seek(0)
evtime = new_event.origins[0].time
pickline = []
# Set a default, ignored later unless overwritten
snr = None
for line in f:
if line[79] == '7':
header = line
break
for line in f:
if len(line.rstrip('\n').rstrip('\r')) in [80, 79] and \
line[79] in ' 4\n':
pickline += [line]
for line in pickline:
if line[18:28].strip() == '': # If line is empty miss it
continue
weight = line[14]
if weight == '_':
phase = line[10:17]
weight = 0
polarity = ''
else:
phase = line[10:14].strip()
polarity = line[16]
if weight == ' ':
weight = 0
polarity_maps = {"": "undecidable", "C": "positive", "D": "negative"}
try:
polarity = polarity_maps[polarity]
except KeyError:
polarity = "undecidable"
# It is valid nordic for the origin to be hour 23 and picks to be hour
# 00 or 24: this signifies a pick over a day boundary.
if int(line[18:20]) == 0 and evtime.hour == 23:
day_add = 86400
pick_hour = 0
elif int(line[18:20]) == 24:
day_add = 86400
pick_hour = 0
else:
day_add = 0
pick_hour = int(line[18:20])
try:
time = UTCDateTime(evtime.year, evtime.month,
evtime.day, pick_hour, int(line[20:22]),
float(line[23:28])) + day_add
except ValueError:
time = UTCDateTime(evtime.year, evtime.month, evtime.day,
int(line[18:20]), pick_hour,
float("0." + line[23:38].split('.')[1])) +\
60 + day_add
# Add 60 seconds on to the time, this copes with s-file
# preference to write seconds in 1-60 rather than 0-59 which
# datetime objects accept
if header[57:60] == 'AIN':
ain = _float_conv(line[57:60])
warnings.warn('AIN: %s in header, currently unsupported' % ain)
elif header[57:60] == 'SNR':
snr = _float_conv(line[57:60])
else:
warnings.warn('%s is not currently supported' % header[57:60])
# finalweight = _int_conv(line[68:70])
# Create a new obspy.event.Pick class for this pick
_waveform_id = WaveformStreamID(station_code=line[1:6].strip(),
channel_code=line[6:8].strip(),
network_code='NA')
pick = Pick(waveform_id=_waveform_id,
phase_hint=phase,
polarity=polarity,
time=time)
try:
pick.onset = onsets[line[9]]
except KeyError:
pass
if line[15] == 'A':
pick.evaluation_mode = 'automatic'
else:
pick.evaluation_mode = 'manual'
# Note these two are not always filled - velocity conversion not yet
# implemented, needs to be converted from km/s to s/deg
# if not velocity == 999.0:
# new_event.picks[pick_index].horizontal_slowness = 1.0 / velocity
if _float_conv(line[46:51]) is not None:
pick.backazimuth = _float_conv(line[46:51])
# Create new obspy.event.Amplitude class which references above Pick
# only if there is an amplitude picked.
if _float_conv(line[33:40]) is not None:
_amplitude = Amplitude(generic_amplitude=_float_conv(line[33:40]),
period=_float_conv(line[41:45]),
pick_id=pick.resource_id,
waveform_id=pick.waveform_id)
if pick.phase_hint == 'IAML':
# Amplitude for local magnitude
_amplitude.type = 'AML'
# Set to be evaluating a point in the trace
_amplitude.category = 'point'
# Default AML unit in seisan is nm (Page 139 of seisan
# documentation, version 10.0)
_amplitude.generic_amplitude /= 1e9
_amplitude.unit = 'm'
_amplitude.magnitude_hint = 'ML'
else:
# Generic amplitude type
_amplitude.type = 'A'
if snr:
_amplitude.snr = snr
new_event.amplitudes.append(_amplitude)
elif _int_conv(line[28:33]) is not None:
# Create an amplitude instance for code duration also
_amplitude = Amplitude(generic_amplitude=_int_conv(line[28:33]),
pick_id=pick.resource_id,
waveform_id=pick.waveform_id)
# Amplitude for coda magnitude
_amplitude.type = 'END'
# Set to be evaluating a point in the trace
_amplitude.category = 'duration'
_amplitude.unit = 's'
_amplitude.magnitude_hint = 'Mc'
if snr is not None:
_amplitude.snr = snr
new_event.amplitudes.append(_amplitude)
# Create new obspy.event.Arrival class referencing above Pick
if _float_conv(line[33:40]) is None:
arrival = Arrival(phase=pick.phase_hint, pick_id=pick.resource_id)
if weight is not None:
arrival.time_weight = weight
if _int_conv(line[60:63]) is not None:
arrival.backazimuth_residual = _int_conv(line[60:63])
if _float_conv(line[63:68]) is not None:
arrival.time_residual = _float_conv(line[63:68])
if _float_conv(line[70:75]) is not None:
arrival.distance = kilometers2degrees(_float_conv(line[70:75]))
if _int_conv(line[76:79]) is not None:
arrival.azimuth = _int_conv(line[76:79])
new_event.origins[0].arrivals.append(arrival)
new_event.picks.append(pick)
return new_event
