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[change] Extract function that calculates cuttimes

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This commit is contained in:
Darius Arnold 2018-07-30 12:42:41 +02:00
parent da2b1ed133
commit c89e47ac43
1 changed files with 45 additions and 22 deletions
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67
pylot/core/pick/autopick.py
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@ -863,7 +863,7 @@ class AutopickStation(object):
print(ae)
except MissingTraceException as mte:
print(mte)
cuttimes = [self.p_params.pstart, self.p_params.pstop]
cuttimes = self._calculate_cuttimes('P', 1)
# calculate first CF
if self.p_params.algoP == 'HOS':
@ -917,9 +917,7 @@ class AutopickStation(object):
# save filtered trace in instance for later plotting
self.tr_filt_z_bpz2 = tr_filt
# determine new times around initial onset
starttime2 = round(max(aicpick.getpick() - self.p_params.Precalcwin, 0))
endtime2 = round(min(len(self.ztrace.data) * self.ztrace.stats.delta, aicpick.getpick() + self.p_params.Precalcwin))
cuttimes2 = [starttime2, endtime2]
cuttimes2 = self._calculate_cuttimes('P', 2)
if self.p_params.algoP == 'HOS':
cf2 = HOScf(z_copy, cuttimes2, self.p_params.tlta, self.p_params.hosorder)
elif self.p_params.algoP == 'ARZ':
@ -966,20 +964,45 @@ class AutopickStation(object):
print(msg)
self.s_results.Sflag = 1
def pick_s_phase(self):
# determine time window for calculating CF after P onset
start = round(max(self.p_results.mpickP + self.s_params.sstart, 0))
stop = round(min([
self.p_results.mpickP + self.s_params.sstop,
self.etrace.stats.endtime - self.etrace.stats.starttime,
self.ntrace.stats.endtime - self.ntrace.stats.starttime
]))
cuttimesh = (start, stop)
if cuttimesh[1] <= cuttimesh[0]:
pickSonset = False
raise PickingFailedException('Cut window for horizontal phases too small! Will not pick S onsets.')
def _calculate_cuttimes(self, type, iteration):
"""
Calculate cuttimes for a trace
:param type: 'P' or 'S', denoting the pick for which cuttime should be calculated
:type type: str
:param iteration: Calculate cut times for initial pick or for the smaller window of the precise pick around
the initial pick
:type iteration: int
:return: tuple of (starttime, endtime) in seconds
:rtype: (int, int)
"""
if type.upper() == 'P':
if iteration == 1:
return [self.p_params.pstart, self.p_params.pstop]
if iteration == 2:
starttime2 = round(max(self.p_results.aicpick.getpick() - self.p_params.Precalcwin, 0))
endtime2 = round(
min(len(self.ztrace.data) * self.ztrace.stats.delta, self.p_results.aicpick.getpick() + self.p_params.Precalcwin))
return [starttime2, endtime2]
elif type.upper() == 'S':
if iteration == 1:
# Calculate start times for preliminary S onset
start = round(max(self.p_results.mpickP + self.s_params.sstart, 0)) # limit start time to >0 seconds
stop = round(min([
self.p_results.mpickP + self.s_params.sstop,
self.etrace.stats.endtime - self.etrace.stats.starttime,
self.ntrace.stats.endtime - self.ntrace.stats.starttime
]))
cuttimesh = (start, stop)
if cuttimesh[1] <= cuttimesh[0]:
raise PickingFailedException('Cut window for horizontal phases too small! Will not pick S onsets.')
return cuttimesh
if iteration == 2:
# recalculate cf from refiltered trace in vicinity of initial onset
start = round(self.aicarhpick.getpick() - self.s_params.Srecalcwin)
stop = round(self.aicarhpick.getpick() + self.s_params.Srecalcwin)
return (start, stop)
else:
raise ValueError('Wrong type given, can only be P or S')
# prepare traces for picking by filtering, taper
if self.s_params.algoS == 'ARH':
@ -1006,10 +1029,13 @@ class AutopickStation(object):
arhcf1 = AR3Ccf(h_copy, cuttimesh, self.s_params.tpred1h, self.s_params.Sarorder, self.s_params.tdet1h, self.p_params.addnoise)
# save cf for later plotting
self.arhcf1 = arhcf1
def pick_s_phase(self):
tr_arhaic = trH1_filt.copy()
tr_arhaic.data = arhcf1.getCF()
h_copy[0].data = tr_arhaic.data
# determine time window for calculating CF after P onset
cuttimesh = self._calculate_cuttimes(type='S', iteration=1)
# calculate AIC cf
haiccf = AICcf(h_copy, cuttimesh)
@ -1042,10 +1068,7 @@ class AutopickStation(object):
'...'.format(aicarhpick.getSlope(), aicarhpick.getSNR())
self.vprint(msg)
# recalculate cf from refiltered trace in vicinity of initial onset
start = round(aicarhpick.getpick() - self.s_params.Srecalcwin)
stop = round(aicarhpick.getpick() + self.s_params.Srecalcwin)
cuttimesh2 = (start, stop)
cuttimesh2 = self._calculate_cuttimes('S', 2)
# refilter waveform with larger bandpass
if self.s_params.algoS == 'ARH':